Rail type lifting system

Abstract

The utility model discloses a rail-mounted lifting system, which belongs to the field of rail-mounted lifting systems, solves the problems that a host is more complicated to mount and dismount and has larger potential safety hazards, and adopts the technical scheme that the rail-mounted lifting system mainly comprises a rail system, a pulley and a lifting mechanism, and the lifting mechanism is hung on the pulley through a detachable coupling device. The detachable coupling device comprises a latch hook, a movable latch and a locking element, the movable latch comprises pivot supports and latch columns, the two pivot supports can be operated to rotate to drive the latch columns to be connected with or separated from the latch hook, and the pivot supports have the joint tendency of the latch columns and the latch hook. The locking element is provided with a locking position and a first unlocking position, in the locking position, the locking element limits rotation of the pivot support, and in the first unlocking position, the locking element releases limitation on the pivot support. The risk that the lifting mechanism is freely separated from the tackle can be reduced.

Description

Rail-mounted lifting system Technical Field

[0001] This utility model demonstrates a rail-type lifting system, belonging to the technical field of rail-type lifting systems. Background Technology

[0002] The rail-mounted lifting system, also known as a ceiling-mounted patient transfer machine, is primarily used to address the mobility, toileting, and bathing needs of the elderly, those with mobility issues, and those unable to walk. It is widely applicable in hospitals, nursing homes, rehabilitation centers, and homes. The transfer machine is mainly a nursing device designed to assist disabled individuals with barrier-free movement, used for short-distance relocation and rehabilitation care for disabled individuals or patients.

[0003] A detachable ceiling track moving machine typically includes a track, a trolley, a main unit, and a boom. The track is laid on the indoor ceiling, and the trolley is slidably connected to the track so that the trolley can slide along the track. The main unit is connected to the trolley and is used to control the raising and lowering of the boom. In traditional detachable ceiling track moving machines, the trolley and the main unit are usually fixedly connected. However, when the main unit malfunctions and needs to be repaired or replaced, the disassembly of the main unit and the trolley is quite complicated, which greatly increases the difficulty of installing and disassembling the main unit.

[0004] Existing technologies also include transfer machines where the main unit and trolley are detachably connected. To prevent the trolley and main unit from accidentally separating due to misoperation, traditional transfer machines usually employ two layers of protection to restrict the arbitrarily separation of the main unit and trolley. However, employing two layers of protection makes the overall structure of the transfer machine more complex and difficult to operate, and also increases the difficulty of installing and disassembling the main unit. In addition, after installation, it is necessary to confirm that both layers of protection are in place. If either layer of protection is not in place, the main unit may accidentally fall off, thereby increasing the safety hazards of the transfer machine. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the installation and disassembly of the lifting mechanism are complicated and pose significant safety hazards. To this end, a rail-type lifting system is provided, which can reduce the risk of the lifting mechanism detaching from the trolley at will.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A rail-type lifting system includes a rail mechanism and a lifting mechanism. The rail mechanism includes a rail and a trolley that moves along the rail. The lifting mechanism is suspended from the trolley by a detachable coupling device. The detachable coupling device includes:

[0008] A pair of latch hooks are provided on the lifting mechanism;

[0009] A pair of movable latches are mounted on the trolley. Each movable latch includes a pivot bracket and a latch pin connected to the pivot bracket. The two pivot brackets are operably rotated to engage or disengage the latch pin from the latch hook. The movable latches are elastically loaded by a first reset member to maintain the engagement tendency of the latch pin with the latch hook. The pivot bracket has a stop portion, and a gap region is formed between the stop portions of the two pivot brackets.

[0010] A locking element, operable to switch between a locked position and an unlocked position, wherein the interval region provides a locked position allowing the locking element to enter when the latch pin and latch hook are engaged, and two stops are abutted by the locking element to restrict the rotation of the pivot bracket, and the locking element in the unlocked position releases abutment against the stops.

[0011] The beneficial effects of using this utility model are:

[0012] The lifting mechanism described in this invention is suspended from the trolley via a detachable coupling device. The detachable coupling device includes a latch hook, a movable latch, and a locking element. The movable latch includes a pivot bracket and a latch pin. A gap is formed between the stop portions of the two pivot brackets. The locking element has a locked position and an unlocked position. When the latch pin is engaged with the latch hook, the gap provides space for the locking element to enter, allowing it to move to the locked position. When the locking element is in the locked position, it simultaneously abuts against the two stop portions, thus restricting the rotation of the two pivot brackets and ensuring that the latch pin remains locked to the latch hook. Therefore, even with a greater external force pushing the pivot bracket, the pivot bracket will not rotate, preventing the latch pin from disengaging from the latch hook and avoiding the phenomenon of arbitrary unlocking of the latch pin and latch hook. This ensures a stable and reliable connection between the latch pin and latch hook, making the lifting system safer and more reliable. Furthermore, the movable latch is elastically loaded by a first reset member, maintaining the engagement tendency of the latch pin and latch hook. Therefore, under the action of the first reset member, there is no significant... Under large external forces, the pivot bracket will not rotate arbitrarily, reducing the possibility of the latch pin disengaging from the latch hook. Therefore, the cooperation of the first reset element and the locking element provides double protection for the pivot bracket, ensuring that the engagement between the latch pin and the latch hook remains stable and reliable, significantly reducing the possibility of the latch pin disengaging from the latch hook, making the connection between the lifting mechanism and the trolley safer and more reliable, and helping to improve the safety of the lifting system. Secondly, during the unlocking process of the latch pin and the latch hook, the locking element is first operated to the unlock position so that the locking element releases its contact with the stop, allowing the pivot bracket to rotate normally, thereby separating the latch pin and the latch hook from each other, and realizing the disassembly of the lifting mechanism and the trolley. In this embodiment, the overall structure and assembly method of the locking element, the first reset element, and the movable latch are relatively simple. At the same time, the installation and disassembly process of the latch hook and the movable latch only requires operating the locking element and the pivot bracket in sequence, that is, the whole operation process is relatively simple, which can realize the rapid disassembly and installation of the lifting mechanism, and can significantly improve the disassembly and installation efficiency of the lifting mechanism.

[0013] Preferably, the sliding direction of the locking element is parallel to the rotation axis of the pivot bracket, and the locking element switches between the locked position and the unlocked position by sliding, with the locking element in the unlocked position disengaging from the interval area.

[0014] Preferably, the locking element is elastically loaded by the second reset member and maintains its tendency to move towards the locked position. Using the aforementioned technical solution, the second reset member can automatically reset the locking element to the locked position without manual operation. It also ensures that after the latch pin and latch hook engage, the locking element can reset to the locked position, thereby restricting the pivot bracket and preventing situations where locking is incomplete due to forgetting to engage. This ensures that the locking element can perform its locking function, making the locking of the latch pin and latch hook safer and more reliable, thus improving the safety of the lifting system.

[0015] Preferably, the locking element is fixedly connected to a first operating member, the trolley includes a housing, the locking element is located within the housing, and a second reset member is constrained between the first operating member and the housing. Using the aforementioned technical solution, the user can control the locking element to switch between the locked and unlocked positions via the first operating member. The first operating member makes applying force simpler and easier for the user, significantly reducing the difficulty of operation.

[0016] Preferably, the detachable coupling device further includes a limiting element. When the locking element is in the unlocked position, the limiting element enters the movement path of the locking element to restrict the locking element from moving to the locked position. Using the aforementioned technical solution, since the pivot bracket is elastically loaded by the first reset member, the pivot bracket automatically rotates towards the position where it engages with the latch hook. Therefore, when the pivot bracket loses external force, space is provided between the two stops for the locking element to reach the locked position. The limiting element restricts the locking element, preventing it from returning to the locked position even without rotating the pivot bracket. This ensures the pivot bracket can rotate freely and smoothly, effectively preventing the need for repeated operations to disengage the locking element from the locked position, and significantly simplifying the unlocking process of the movable latch and latch hook.

[0017] Preferably, the limiting element includes a blocking position that restricts the movement of the locking element towards the locking position and a clearance position that releases the restriction on the locking element. The limiting element is elastically loaded by the third reset member and maintains its tendency to move towards the blocking position. The locking element in the locking position restricts the limiting element to the clearance position. Using the aforementioned technical solution, when the locking element is operated to the unlock position, the limiting element will automatically move to the blocking position under the action of the third reset member. This allows the locking element to be promptly restricted to the unlock position without manual operation, ensuring that the limiting element can reliably restrict the locking element. It also eliminates the need for manual operation and improves the interoperability of the detachable coupling device.

[0018] Preferably, the limiting element is rotatably connected to the trolley, and a first protrusion is provided on the outer periphery of the limiting element. When in the blocking position, the first protrusion is at least partially within the movement path of the locking element to restrict the movement of the locking element to the locking position. When in the locking position, the locking element abuts against the first protrusion to restrict the rotation of the limiting element. By adopting the aforementioned technical solution, the rotatable setting of the limiting element can reduce the space occupied by the movement path of the limiting element, making the assembly of the limiting element and the locking element more compact.

[0019] Preferably, the locking element further includes a pre-locked position, which is between the unlocked and locked positions. The pivot bracket rotates in the direction of disengaging from the latch hook, causing the limiting element to rotate to the clearance position, and placing the pivot bracket at least partially within the movement path of the locking element. The end face of the pivot bracket in the sliding direction of the locking element abuts against the locking element, restricting the locking element to the pre-locked position. The locking element in the pre-locked position restricts the limiting element to the clearance position. Using the aforementioned technical solution, the movable latch can simultaneously reset the limiting element to the clearance position during the unlocking process, thereby releasing the limitation of the limiting element on the locking element. This allows the locking element to automatically reset to the locked position and restrict the limiting element to the clearance position. Afterwards, when the pivot bracket rotates in the direction of engaging with the latch hook, the limiting element remains in the clearance position under the restriction of the locking element. After the latch pin engages with the latch hook, the limiting element can smoothly move from the unlocked position to the locked position. That is, during the entire unlocking process, the movement of the limiting element does not require separate manual operation, effectively simplifying the operation steps of the detachable coupling device, and allowing the lifting mechanism and the trolley to... The installation and disassembly are simpler and faster, which helps to improve the efficiency of the lifting mechanism and its installation and disassembly. In addition, it can also eliminate the parts used to operate the limit element, simplifying the structure of the limit element, reducing the installation difficulty of the limit element, and reducing the space occupied by the limit element. Secondly, after the pivot bracket resets the limit element to the avoidance position, the locking element will slide to the locking position and abut against the stop at the pre-lock position. At this time, the locking element restricts the limit element. During the subsequent rotation of the pivot bracket, the limit element is still kept in the avoidance position by the locking element. After the pivot bracket is reset, the locking element can automatically reset to the locking position, thus completing the restriction of the pivot bracket.

[0020] Preferably, the limiting block is provided with a second protrusion. In the blocking position, the second protrusion is at least partially within the rotation path of the pivot bracket. The pivot bracket rotates in the direction of disengaging from the latch hook to push the second protrusion, thereby causing the limiting element to rotate towards the avoidance position.

[0021] Preferably, the limiting element is fixedly connected to a second operating member, which can be operated to move the limiting element to the avoidance position.

[0022] Preferably, the pivot bracket includes a first locking plate and a second locking plate, with a latch pin fixed between the first and second locking plates, and a stop portion located on one side opposite to the two first locking plates. Using the aforementioned technical solution, with the latch pin positioned between the first and second locking plates, and after the latch pin engages with the latch hook, the force-bearing position of the latch bracket is also between the first and second locking plates. This allows for a more balanced force distribution on the pivot bracket, helping to reduce the shear force on the pivot bracket, lowering the possibility of deformation or breakage, extending the service life of the pivot bracket, and improving the safety of the lifting system.

[0023] Preferably, the two pivot brackets rotate toward each other, causing the latch pin to disengage from the latch hook. The stop is located on one side opposite to the two pivot brackets. In the height direction, the stop is at least partially lower than the rotation axis of the pivot bracket. The locking element abuts against the opposite sides of the two stops on both sides to restrict the rotation of the two pivot brackets.

[0024] Preferably, the stop is located near the hinge between the pivot bracket and the trolley. Using the aforementioned technical solution, the locking element abuts against the stop, thereby restricting the rotation of the pivot bracket. The closer the locking element's restraining position on the pivot bracket is to the hinge, the stronger the restraining force of the locking element on the pivot bracket. This reduces the swaying amplitude of the pivot bracket after it is restrained, reduces the noise generated by the swaying, and helps improve the user experience. Furthermore, the proximity of the stop and locking element to the hinge of the pivot bracket provides ample installation space for the limiting element and also reduces the overall length of the pivot bracket, making the assembly of the detachable coupling device more compact and helping to reduce the size of the trolley.

[0025] Preferably, the locking element is rotatably connected to the trolley, and the locking element rotates within the interval area to switch between the locked and unlocked positions. Using the aforementioned technical solution, the locking element switches between the locked and unlocked positions by rotation, and both the locked and unlocked positions are within the interval area. This means the space occupied by the movement path of the locking element is small, allowing the locking element to be used in more compact installation spaces.

[0026] Preferably, the trolley or lifting mechanism is provided with a pair of release sliders, which can be operably slid towards each other to push the pivot bracket to rotate. Using the aforementioned technical solution, the sliding of the release sliders drives the pivot bracket to rotate in the direction of disengaging from the latch hook, making the separation of the latch pin and latch hook simpler and more convenient. This reduces the operational difficulty of separating the latch pin and latch hook, and helps improve the installation and disassembly efficiency of the lifting mechanism and trolley.

[0027] Preferably, the release slider is mounted on the lifting mechanism, and the movable latch includes a guide pin connected to the pivot bracket. The two release sliders have guide surfaces on opposite sides, and the distance between the two guide surfaces gradually increases from bottom to top. The guide pin acts on the guide surfaces to push the two release sliders away from each other. Using the aforementioned technical solution, during disassembly, the user pushes the release slider to rotate the pivot bracket in the direction of disengaging the latch hook, thereby unlocking the latch pin and latch hook. After unlocking, the lifting mechanism automatically separates from the trolley under the action of gravity, and the release slider is placed on the lifting mechanism. During the unlocking process, the user needs to hold the lifting mechanism while pushing the release slider. Therefore, after the lifting mechanism separates from the trolley, the user can still hold the lifting mechanism to prevent it from falling and being damaged. At the same time, no additional protection is needed for the lifting mechanism, making it convenient for the user to disassemble with one hand. During the connection process, the guide pin acts on the guide surface to push the two release sliders away from each other, allowing the release sliders to return to the end of the slide groove, so that the user can push the guide pin again by releasing the sliders. During the connection process between the trolley and the lifting mechanism, the user does not need to manually reset the two release sliders, which can further reduce the connection difficulty between the trolley and the lifting mechanism and help improve the installation efficiency of the trolley and the lifting mechanism.

[0028] Preferably, the guide pin and the latch post are coaxially arranged. This technical solution ensures that the movement paths of the latch post and the guide pin are the same, preventing the latch post and latch hook from failing to unlock.

[0029] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] Figure 1 is a schematic diagram of the track-type lifting system of this utility model;

[0032] Figure 2 is an exploded view of the trolley and lifting mechanism in the track-type lifting system of this utility model;

[0033] Figure 3 is a cross-sectional view of the trolley and lifting mechanism in the track-type lifting system of this utility model;

[0034] Figure 4 is a schematic diagram of the locking element in the locked position in the track-type lifting system of this utility model;

[0035] Figure 5 is a cross-sectional view of the locking element in the track-type lifting system of this utility model in the locked position;

[0036] Figure 6 is a schematic diagram of the locking element in the unlocked position in the track-type lifting system of this utility model;

[0037] Figure 7 is a cross-sectional view of the locking element in the unlocked position in the track-type lifting system of this utility model;

[0038] Figure 8 is a schematic diagram of the locking element in the pre-locked position in the track-type lifting system of this utility model;

[0039] Figure 9 is a cross-sectional view of the locking element in the pre-locked position in the track-type lifting system of this utility model;

[0040] Figure 10 is a front view of the locking element in the locked position in the track-type lifting system of this utility model;

[0041] Figure 11 is a front view of the locking element in the unlocked position in the track-type lifting system of this utility model;

[0042] Figure 12 is a front view of the pivot support in the track-type lifting system of this utility model during the rotation process;

[0043] Figure 13 is a front view of the locking element in the pre-locked position in the track-type lifting system of this utility model;

[0044] Figure 14 is a cross-sectional view of the top of the lifting mechanism in the track-type lifting system of this utility model.

[0045] Reference numerals: 1. Pulley; 11. Housing; 111. Fixing plate; 12. Pivot bracket; 121. First locking plate; 122. Second locking plate; 123. Rotating shaft; 1231. Rotation axis; 124. Stop; 1241. Abutment surface; 1242. End face; 125. Latch pin; 126. Guide pin; 127. Tooth; 128. First reset element; 13. Locking element; 131. First operating element; 132. Second reset element Components; 133. Sliding direction; 134. Side wall; 135. Bottom wall; 136. Front wall; 14. Limiting element; 141. First protrusion; 142. Second protrusion; 143. Third reset element; 15. Roller; 21. Latch hook; 22. Release slider; 221. Guide surface; 222. Clearance groove; 3. Track; 4. Lifting mechanism; 41. Main unit; 411. Top wall; 412. Slot; 413. Blocking block; 42. Hanging rod. Detailed Implementation

[0046] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] As shown in Figures 1 to 14, this embodiment illustrates a track 3 mechanism lifting system, including a track 3 mechanism and a lifting mechanism 4. The track 3 mechanism includes a track 3 and a trolley 1 that moves along the track 3. The lifting mechanism 4 includes a main unit 41 and a boom 42. A roller 15 is rotatably connected to the top of the trolley 1. The bottom of the track 3 is provided with a slot for the trolley 1 to extend into. The edge of the slot forms a slide rail for the roller 15 to slide. The roller 15 slides along the slide rail to achieve a sliding connection between the trolley 1 and the track 3. A winch is provided inside the main unit 41. A traction belt is wound on the winch. The traction end of the traction belt extends from the bottom end of the main unit 41 and is connected to the boom 42.

[0050] As shown in Figures 2 and 3, in this embodiment, the lifting mechanism 4 is detachably connected to the trolley 1 via a detachable coupling device. The detachable coupling device includes a pair of latch hooks 21 mounted on the top of the lifting mechanism 4, a pair of movable latches mounted on the trolley 1, and a locking element 13 mounted on the trolley 1. The movable latches include a pivot bracket 12 hinged to the trolley 1 and a latch pin 125 connected to the pivot bracket 12. The pivot bracket 12 includes an engagement position for engaging the latch pin 125 with the latch hooks 21 and a disengagement position for disengaging the latch pin 125 from the latch hooks 21. The two pivot brackets 12 can be operably rotated to switch between the engagement and disengagement positions. The movable latches are also connected to a first reset member 128, which elastically loads and holds the movable latches in place. The latching pin 125 engages with the latch hook 21. The pivoting bracket 12 has a stop 124, and a gap region is formed between the stop 124 of the two pivoting brackets 12. The locking element 13 can be operatively switched between a locked position and an unlocked position. When the pivoting bracket 12 is in the engaged position, the gap region provides a locked position and allows the locking element 13 to enter. When the locking element 13 is in the locked position, the two stop 124 are abutted by the locking element 13, which restricts the rotation of the pivoting bracket 12. When the locking element 13 is in the unlocked position, the locking element 13 releases its abutment against the stop 124. At this time, the pivoting bracket 12 is no longer restricted by the locking element 13 and can rotate freely between the engaged position and the disengaged position, thereby realizing the engagement and disengagement of the latching pin 125 and the latch hook 21.

[0051] In this invention, the lifting mechanism 4 is suspended from the trolley 1 by a detachable coupling device. The detachable coupling device includes a latch hook 21, a movable latch, and a locking element 13. The movable latch includes a pivot bracket 12 and a latch post 125. A gap is formed between the stop portions 124 of the two pivot brackets 12. The locking element 13 has a locked position and an unlocked position. When the latch post 125 is engaged with the latch hook 21, the gap provides space for the locking element 13 to enter, so that the locking element 13 can move to the locked position. After the locking element 13 is in the locked position, the locking element 13 simultaneously engages with the two stop portions 124. The two pivot supports 12 are counteracted by 24, thus limiting their rotation and ensuring that the latch pin 125 remains locked to the latch hook 21. Therefore, even if a larger external force pushes the pivot support 12, the pivot support 12 will not disengage from the locked position, preventing the latch pin 125 from being unlocked at will. This ensures that the latch pin 125 and the latch hook 21 maintain a stable and reliable connection, making the use of the transfer machine safer and more reliable. In addition, the movable latch is elastically loaded by the first reset member 128, thereby maintaining the engagement tendency of the latch pin 125 and the latch hook 21. Therefore, under the action of the first reset member 128, there is no large external force. In this case, the pivot bracket 12 will not rotate arbitrarily, reducing the possibility of the latch pin 125 disengaging from the latch hook 21. Therefore, the cooperation of the first reset member 128 and the locking element 13 provides double protection for the pivot bracket 12, ensuring that the engagement between the latch pin 125 and the latch hook 21 remains stable and reliable, significantly reducing the possibility of the latch pin 125 disengaging from the latch hook 21 arbitrarily, making the connection between the lifting mechanism 4 and the trolley 1 safer and more reliable, and helping to improve the safety of the lifting system. Secondly, during the unlocking process of the latch pin 125 and the latch hook 21, the locking element 13 is first operated to the unlock position to make the locking... Component 13 releases its contact with the stop 124, allowing the pivot bracket 12 to rotate normally. This allows the latch pin 125 to separate from the latch hook 21, thus enabling the disassembly of the lifting mechanism 4 from the trolley 1. In this embodiment, the overall structure and assembly of the locking component 13, the first reset component 128, and the movable latch are relatively simple. Furthermore, the installation and disassembly of the latch hook 21 and the movable latch can be completed by sequentially operating the locking component 13 and the pivot bracket 12. In other words, the entire operation process is relatively simple, enabling the rapid disassembly and installation of the lifting mechanism 4 and significantly improving the efficiency of disassembly and installation of the lifting mechanism 4.

[0052] It should be noted that in this embodiment, the two latch hooks 21 are arranged opposite to each other, and the two pivot brackets 12 rotate in opposite directions from the engagement position to the disengagement position. That is, when the two pivot brackets 12 rotate towards each other, they move closer to each other, which allows the latch pin 125 to disengage from the latch hook 21, thus separating the latch pin 125 from the latch hook 21. Correspondingly, when the two pivot brackets 12 rotate away from each other, they move further away from each other, which allows the latch pin 125 to engage with the latch hook 21, thus locking the lifting mechanism 4 and the trolley 1. In addition, to avoid relative displacement of the two latch hooks 21, in this embodiment, the two latch hooks 21 are a single unit.

[0053] It is understandable that in other embodiments, the two latch hooks 21 can also be arranged in opposite directions. In this case, the two pivot supports 12 rotate in opposite directions from the engagement position to the disengagement position. That is, when the two pivot supports 12 rotate in opposite directions, the two pivot supports 12 move away from each other, which can make the latch pin 125 disengage from the latch hook 21 and realize the separation of the latch pin 125 from the latch hook 21. Correspondingly, when the two pivot supports 12 rotate towards each other, the two pivot supports 12 move closer to each other, which can make the latch pin 125 engage with the latch hook 21 and realize the locking of the lifting mechanism 4 and the trolley 1.

[0054] It is understandable that in other embodiments, the rotation direction of the two pivot brackets 12 may also be the same, that is, the rotation direction of the two pivot brackets 12 from the engagement position to the disengagement position is the same, and the corresponding two latch hooks 21 are also arranged in the same direction. The locking element 13 is still located between the two pivot brackets 12, and the two stops 124 are arranged on the opposite side of the two pivot brackets 12.

[0055] As shown in Figure 4, in this embodiment, the trolley 1 is provided with two first reset members 128, which correspond to two pivot brackets 12. The first reset member 128 is a tension spring, with one end of the first reset member 128 hooked inside the trolley 1 and the other end connected to the side of the pivot bracket 12 away from the stop part 124. Of course, it can be understood that in other embodiments, the two pivot brackets 12 may also share a first reset member 128. The first reset member 128 is located on the upper side of the two pivot brackets 12, and the two ends of the first reset member 128 are respectively connected to the opposite sides of the two pivot brackets 12. After the first reset member 128 is connected to the two pivot brackets 12, it is in a stretched state, which can make the two pivot brackets 12 have a tendency to rotate in opposite directions.

[0056] As shown in Figures 2 to 4, the trolley 1 in this embodiment includes a housing 11. A locking element 13 is fixedly connected to a first operating member 131. The locking element 13 is located inside the housing 11. A second reset member 132, which is a compression spring, is elastically loaded onto the locking element 13. The second reset member 132 is confined between the first operating member 131 and the housing 11. The user presses the first operating member 131 to move the locking element 13 from the locked position to the unlocked position. The sliding direction 133 of the locking element 13 is parallel to the rotation axis 1231 of the pivot bracket 12. When the locking element 13 is in the unlocked position, it disengages from the gap between the two stops 124. After the user releases the first operating member 131, the second reset member 132 acts on the first operating member 131, thereby... The locking element 13 is automatically reset to its initial position. The first operating element 131 controls the locking element 13 to switch between the locked and unlocked positions. The first operating element 131 makes it easier and simpler for the user to apply force, significantly reducing the difficulty of operation. In addition, the second reset element 132 can automatically reset the locking element 13 to the locked position without manual operation. It also ensures that after the latch column 125 and the latch hook 21 are engaged, the locking element 13 can be reset to the locked position, thereby restricting the pivot bracket 12 and preventing the situation where the locking is not in place due to forgetting. This ensures that the locking element 13 can play a locking role, making the locking of the latch column 125 and the latch hook 21 safer and more reliable, which helps to improve the safety of the lifting system.

[0057] As shown in Figures 4 and 5, in this embodiment, the pivot bracket 12 is rotatably connected to the trolley 1 via a pivot shaft 123. The pivot shaft 123 is located at the upper end of the pivot bracket 12, and the latch pin 125 is located at the lower end of the pivot bracket 12. During the rotation of the pivot bracket 12, the latch pin 125 rotates around the pivot shaft 123 along with the pivot bracket 12. The rotation directions of the two pivot brackets 12 from the engaged position to the disengaged position are opposite. Specifically, referring to Figure 4, the left pivot bracket 12 rotates counterclockwise from the engaged position to the disengaged position, while the right pivot bracket 12 rotates counterclockwise. 2. The rotation direction from the engagement position to the disengagement position is clockwise. The stop 124 is provided on the opposite side of the two pivot brackets 12. In the height direction, the stop 124 is at least partially lower than the rotation axis 1231 of the pivot bracket 12. The opposite sides of the two stop 124 are abutment surfaces 1241. The locking element 13 is in the shape of a cuboid. When the locking element 13 is in the locked position, the side walls 134 on both sides of the locking element 13 abut against the abutment surfaces 1241 of the two stop 124 respectively, thereby restricting the rotation of the two pivot brackets 12.

[0058] As shown in Figures 4 to 9, the detachable coupling device in this embodiment further includes a limiting element 14. The limiting element 14 is located between the two pivot supports 12, and in the height direction, the limiting element 14 is located below the locking element 13. The limiting element 14 has a blocking position and a clearance position. The limiting element 14 is connected to a third reset member 143. The limiting element 14 is elastically loaded by the third reset member 143 and maintains a tendency to move towards the blocking position. Referring to Figures 4 and 5, when the locking element 13 is in the locked position, the locking element 13 is directly above the limiting element 14, and the locking element 13 abuts against the limiting element 14, restricting the limiting element 14 to the clearance position. When the locking element 13 moves to the unlocked position, the locking element 13 releases the restriction on the limiting element 14. Under the action of the third reset member 143, the limiting element 14 automatically resets to the blocking position. At this time, the limiting element 14 enters the movement path of the locking element 13, and the limiting element 14 abuts against the locking element 13, thereby restricting the locking element 13 from resetting to the blocking position. In the initial position, because the pivot bracket 12 is elastically loaded by the first reset member 128, the pivot bracket 12 will automatically rotate toward the position where it engages with the latch hook 21. Therefore, when the pivot bracket 12 loses external force, the space between the two stops 124 will provide space for the locking element 13 to reach the locking position. The limiting element 14 restricts the locking element 13. Even if the pivot bracket 12 is not rotated, the locking element 13 cannot return to the locking position, ensuring that the pivot bracket 12 can rotate freely and smoothly. This effectively prevents the phenomenon that the locking element 13 needs to be repeatedly operated to disengage from the locking position, and significantly simplifies the unlocking process of the movable latch and the latch hook 21. In addition, when the locking element 13 is operated to the unlock position, the limiting element 14 will automatically move to the blocking position under the action of the third reset member 143. The locking element 13 can be restricted to the unlock position in time without manual operation, ensuring that the limiting element 14 can reliably restrict the locking element 13. At the same time, it can also save manual operation and improve the linkage of the detachable coupling device.

[0059] In this embodiment, the limiting element 14 is rotatably connected to the trolley 1, and the third reset element 143 is a torsion spring. One end of the torsion spring acts on the trolley 1, and the other end acts on the limiting element 14. The outer periphery of the limiting element 14 is provided with a first protrusion 141. When in the blocking position, the first protrusion 141 is at least partially in the movement path of the locking element 13 to restrict the locking element 13 from moving to the locking position. When in the locking position, the locking element 13 abuts against the first protrusion 141 to restrict the rotation of the limiting element 14. The rotatable setting of the limiting element 14 can reduce the space occupied by the movement path of the limiting element 14, so that the assembly of the limiting element 14 and the locking element 13 can be more compact.

[0060] As shown in Figure 5, when the locking element 13 is in the locked position, it is at least partially located directly above the first protrusion 141. Under the action of the third reset member 143, the limiting element 14 causes the first protrusion 141 to rotate upwards. The first protrusion 141 then abuts against the bottom wall 135 of the limiting element 14, blocking its rotation and thus restricting it to a clearance position. Referring to Figures 6 and 7, when the locking element 13 slides to the unlocked position, it disengages from the first protrusion 141. Directly above, that is, when the locking element 13 releases its restriction on the limiting element 14, the limiting element 14 will automatically rotate to the blocking position under the action of the third reset element 143. At this time, the first protrusion 141 will enter the movement path of the locking element 13, that is, the first protrusion 141 will be at least partially in front of the locking element 13. After the user releases the first operating element 131, the locking element 13 will automatically move to the locking position, and the front wall 136 of the locking element 13 will abut against the first protrusion 141, thus remaining in the unlocked position.

[0061] It is understandable that in other embodiments, the limiting element 14 may also be slidably connected to the trolley 1, and the corresponding third reset member 143 is a compression spring. The limiting element 14 is fixedly connected to the second operating member. The second operating member can be operated to move the limiting element 14 to the avoidance position. When the locking element 13 slides to the unlock position, the limiting element 14 will automatically reset to the blocking position under the action of the third reset member 143. When it is necessary to release the restriction of the limiting element 14 on the locking element 13, the user can move the limiting element 14 to the avoidance position through the second operating member. After the limiting element 14 leaves the blocking position, the locking element 13 will automatically slide to the locking position under the action of the second reset member 132.

[0062] As shown in Figures 8 and 9, the locking element 13 in this embodiment also includes a pre-lock position, which is between the unlock position and the locked position. The outer periphery of the limiting element 14 is also provided with a second protrusion 142. When the limiting element 14 is in the blocking position, the second protrusion 142 is at least partially within the rotation path of the pivot bracket 12. During the rotation of the pivot bracket 12 towards the disengaged position, the pivot bracket 12 pushes the second protrusion 142 to drive the limiting element 14 back to the clearance position. When the user presses the first operating member 131, the locking element 13 is directly pushed to the unlock position. When the pivot is engaged, the locking element 13 releases its restriction on the pivot bracket 12 and the limiting element 14. The pivot bracket 12 can rotate freely between the engaged and disengaged positions, while the limiting element 14 automatically rotates to the blocking position under the action of the third reset element 143. After the user releases the first operating element 131, the locking element 13, under the action of the second reset element 132, abuts against the first protrusion 141 of the limiting element 14, thus being restricted to the unlocked position. During the rotation of the pivot bracket 12 towards the disengaged position, the side of the pivot bracket 12 will contact the second protrusion 142. As the pivot bracket 12 rotates continuously, it pushes the limiting element 14 to rotate towards the avoidance position via the second protrusion 142. When the pivot bracket 12 rotates to the unlocked position, it drives the limiting element 14 to reset to the avoidance position. At this time, the first protrusion 141 avoids the sliding path of the locking element 13, so the first protrusion 141 releases the restriction on the locking element 13. The locking element 13 continues to slide towards the initial position under the action of the second reset member 132. However, since the pivot bracket 12 has already rotated to the unlocked position, that is, the first protrusion 141 releases the restriction on the locking element 13. The stop 124 occupies the space of the locking element 13 in the locked position. Therefore, the front wall 136 of the locking element 13 will abut against the end face 1242 of the stop 124 in the sliding direction 133 of the locking element 13. The locking element 13 still cannot be reset to the initial position. At this time, the locking element 13 is blocked by the stop 124 and stays in the pre-locked position. When the locking element 13 is in the pre-locked position, the locking element 13 is above the first protrusion 141. That is, at this time, the locking element 13 will also block the rotation of the first protrusion 141, thereby restricting the limiting element 14 to the avoidance position.When the user releases the external force applied to the pivot bracket 12, the first reset member 128 pulls the pivot bracket 12, causing it to automatically rotate towards the engagement position until it returns to the engagement position. During the reset process, the force on the second protrusion 142 is gradually released, but the limiting element 14 remains in the avoidance position, which restricts the locking element 13. After the pivot bracket 12 returns to the locked position, the stop 124 separates from the locking element 13, and the locking element 13, under the action of the second reset member 132, enters the interval area and reaches the locked position, thus restricting the pivot bracket 12 again and ensuring that it does not arbitrarily disengage from the engagement position, making the connection between the trolley 1 and the lifting mechanism 4 more stable and reliable.

[0063] It is understandable that, in other embodiments, when the locking element 13 is in the pre-locked position, it may also abut against the end face of the pivot bracket in the sliding direction 133 of the locking element 13.

[0064] In this embodiment, the first reset member 128 provides double protection for the elastic loading of the pivot bracket 12 and the restriction of the locking element 13, which can significantly reduce the possibility of the latch post 125 disengaging from the latch hook 21. In addition, when the pivot bracket 12 reaches the engagement position, the locking element 13 will automatically reset to the locked position and restrict the pivot bracket 12. Therefore, the locking effect of the locking element 13 does not require manual operation, avoiding the situation where the locking is not in place due to forgetting. This ensures that the double protection of the locking element 13 and the first reset member 128 can always be effective, making the locking of the latch post 125 and the latch hook 21 safer and more reliable, which helps to improve the safety of the shifting machine. Secondly, the overall structure of the first reset member 128 and the locking element 13 is relatively simple. During installation and disassembly, the user only needs to press the locking element 13 and then push the pivot bracket 12 to rotate. The whole operation process is relatively simple. In addition, the locking element 13 does not need to be kept pressed during the entire installation and disassembly process, and the user can also complete the entire operation process with one hand, which helps to improve the installation and disassembly efficiency of the lifting mechanism 4.

[0065] Furthermore, during the unlocking process, the movable latch can simultaneously reset the limiting element 14 to the clearance position, thereby releasing the restriction of the limiting element 14 on the locking element 13. This allows the locking element 13 to move to the unlock position while restricting the limiting element 14 to the clearance position. Afterward, when the pivot bracket 12 rotates towards the direction of engagement with the latch hook 21, the limiting element 14 will still remain in the clearance position under the restriction of the locking element 13. Once the latch pin 125 engages with the latch hook 21, the limiting element 14 can smoothly move from the unlock position to the locked position. In other words, the movement of the limiting element 14 does not require manual operation throughout the entire unlocking process, effectively simplifying the operation steps of the detachable coupling device. This makes the installation and disassembly of the lifting mechanism 4 and the trolley 1 simpler and faster, contributing to improved safety and reliability of the lifting mechanism 4. This improves the efficiency of installation and disassembly; it also eliminates the need for components used to operate the limit element 14, simplifying its structure, reducing installation difficulty, and minimizing space usage. Furthermore, the locking element 13 restricts the limit element 14 in the unlocked position, confining it to a clearance position. This prevents the limit element 14 from interfering with the reset of the locking element 13, ensuring automatic reset. Therefore, the reset of the locking element 13 requires no manual operation, preventing incomplete reset due to forgetfulness. This ensures the dual protection of the pivot bracket 12 and the locking element 13 remains effective, making the locking of the latch hook 21 to the pivot bracket 12 safer and more reliable, thus enhancing the safety of the transfer machine.

[0066] It is understandable that in other embodiments, the locking element 13 can also be rotatably connected to the trolley 1, with the first operating member 131 being a knob and the second reset member 132 being a torsion spring. The first operating member 131 drives the locking element 13 to rotate within the interval area, thereby switching between the locked and unlocked positions. The interval area provides the unlocked position and allows the locking element 13 to enter. The locking element 13 has a major axis and a minor axis, and its shape can be elliptical or cam-shaped. When the locking element 13 is in the locked position, the stop 124 abuts against the two ends of the major axis. The force exerted by the rotation of the pivot bracket 12 on the locking element 13 will point towards the axis of the locking element 13, so this force will not drive the locking element 13 to rotate, i.e., the pivot... The pivot bracket 12 cannot drive the locking element 13 from the locked position to the unlocked position, ensuring that the pivot bracket 12 cannot rotate when the locking element 13 is in the locked position, so that the latch pin 125 and the latch hook 21 can maintain a stable engagement; when the locking element 13 is in the unlocked position, the two ends of the long shaft serve as the upper and lower ends of the locking element 13, and the two ends of the short shaft are between the two stops 124, and there is a gap between the two ends of the short shaft and the stops 124, thereby releasing the restriction on the pivot bracket 12. The locking element 13 switches between the locked position and the unlocked position by rotation. Both the locked position and the unlocked position are within the interval area, that is, the space occupied by the movement path of the locking element 13 is small, so that the locking element 13 can be used in a more compact installation space.

[0067] To reduce the swaying amplitude of the pivot bracket 12 in the locked state, the stop portion 124 in this embodiment is located near the hinge between the pivot bracket 12 and the trolley 1. The locking element 13 and the stop portion 124 are positioned correspondingly. When the locking element 13 is in the locked position, the locking element 13 and the stop portion 124 can form an abutting engagement. The closer the locking element 13 is to the hinge of the pivot bracket 12, the stronger the limiting force of the locking element 13 on the pivot bracket 12. This can reduce the swaying amplitude of the pivot bracket 12 after it is restricted, reduce the noise generated by the swaying of the pivot bracket 12, and help improve the user experience. In addition, the proximity of the stop portion 124 and the locking element 13 to the hinge of the pivot bracket 12 can provide sufficient installation space for the limiting element 14, and can also reduce the overall length of the pivot bracket 12, making the assembly of the detachable coupling device more compact and helping to reduce the volume of the trolley 1.

[0068] As shown in Figure 4, the trolley 1 in this embodiment includes a housing 11, a fixed plate 111 is fixed inside the housing 11, and a pivot bracket 12 includes a first locking plate 121 and a second locking plate 122 in sequence along the unlocking direction of the locking element 13. The first locking plate 121 and the second locking plate 122 are rotatably connected to both sides of the fixed plate 111 via a pivot shaft 123. A latch pin 125 is fixed between the first locking plate 121 and the second locking plate 122 and is located at the lower end of the first locking plate 121 and the second locking plate 122. A stop part 124 is located on the side of the first locking plate 121, and a gap area is formed between the two stop parts 124. The first operating member 131 is mounted on... Mounted on the outer side of the housing 11 near the first locking plate 121, during the process of the first operating member 131 being pressed and causing the locking element 13 to slide, the locking element 13 slides from the interval area toward the position of the second locking plate 122. When the latch hook 21 is locked with the pivot bracket 12, the latch hook 21 is also located between the first locking plate 121 and the second locking plate 122, which can make the force on the pivot bracket 12 more balanced, help reduce the shear force on the pivot bracket 12, reduce the possibility of deformation or breakage of the pivot bracket 12, help extend the service life of the pivot bracket 12, and also improve the safety of the shifting machine.

[0069] It is understandable that in other embodiments, the first locking plate 121 and the second locking plate 122 may also be directly rotatably connected to the inner wall of the housing 11 of the trolley 1 via a rotating shaft 123.

[0070] To ensure that the two pivot supports 12 can rotate synchronously and in opposite directions, as shown in Figure 6, in this embodiment, the second locking plates 122 of the two pivot supports 12 are provided with meshing teeth 127 on opposite sides. The stop 124 is provided on opposite sides of the two first locking plates 121, with the interval area between the two first locking plates 121. When one of the pivot supports 12 rotates, the pivot support 12 can drive the other pivot support 12 to rotate synchronously through the teeth 127, thereby ensuring that the rotation angles of the two pivot supports 12 are the same and the rotation directions are opposite. The two pivot supports 12 can rotate synchronously and in opposite directions, ensuring that the positions of the two pivot supports 12 always correspond to each other, that is, the two pivot supports 12 can be in the engaged position or disengaged position at the same time. This ensures that the two latching pins 125 can be locked or disengaged from the latching hook 21 at the same time, avoiding the phenomenon that the latching hook 21 only locks one latching pin 125. This makes the connection between the latching pin 125 and the latching hook 21 more stable and reliable, which helps to improve the safety of the shifting machine.

[0071] As shown in Figure 2, the movable latch in this embodiment includes a guide pin 126 connected to the pivot bracket 12. The guide pin 126 is coaxially arranged with the latch post 125. Additionally, a pair of release sliders 22 are provided on the lifting mechanism 4. The two release sliders 22 can be operably slid towards each other to push the pivot bracket 12 to rotate. When the lifting mechanism 4 is connected to the trolley 1, the guide pin 126 is within the sliding path of the release slider 22. When the user pushes the release slider 22, the release slider 22 drives the pivot bracket 12 to rotate towards the disengaged position via the guide pin 126, thereby unlocking the latch post 125 from the latch hook 21. After locking, the lifting mechanism 4 will automatically separate from the trolley 1 under the action of gravity, and the release slider 22 is set on the lifting mechanism 4. During the unlocking process, the user needs to hold the lifting mechanism 4 to push the release slider 22. Therefore, after the lifting mechanism 4 separates from the trolley 1, the user can still hold the lifting mechanism 4 to prevent it from falling and being damaged. At the same time, there is no need for additional protection of the lifting mechanism 4, which makes it convenient for the user to disassemble with one hand. In addition, the guide pin 126 and the latch post 125 are coaxially set, which can ensure that the movement path of the latch post 125 and the guide pin 126 is the same, avoiding the phenomenon that the latch post 125 and the latch hook 21 cannot be unlocked.

[0072] As shown in Figures 2 and 14, in this embodiment, the lifting mechanism 4 is provided with a pair of blocking blocks 413. The blocking blocks 413 abut against the release sliders 22 to limit the minimum distance between the two release sliders 22. In addition, the release sliders 22 are at least partially supported on the top wall 411 of the lifting mechanism 4 during the sliding process. Through the support of the lifting mechanism 4 on the release sliders 22, the friction between the release sliders 22 and the slide groove can be reduced, making the sliding of the release sliders 22 smoother and reducing the possibility of the release sliders 22 getting stuck.

[0073] It should be noted that in this embodiment, both the first locking plate 121 and the second locking plate 122 are provided with guide pins 126 extending out of the trolley 1 housing 11, that is, guide pins 126 are exposed on both sides of the trolley 1. The lifting mechanism 4 is slidably mounted with two release sliders 22. The two release sliders 22 are respectively used to push the two pivot brackets 12. When the two guide pins 126 approach each other, they drive the two pivot brackets 12 to rotate towards each other, so that the pivot brackets 12 can rotate to the unlocked position. The release sliders 22 are provided with two guide surfaces 221 for pushing the guide pins 126. The two guide surfaces 221 are... Two guide pins 126 are used to push the same pivot bracket 12. A clearance groove 222 is provided between the two guide surfaces 221. During the sliding of the release slider 22, the side of the trolley 1 will enter the clearance groove 222 to avoid mutual interference between the release slider 22 and the trolley 1. In addition, the guide surface 221 is a curved surface, and the guide surface 221 gradually bends away from the guide pin 126 from bottom to top. That is, the distance between the two opposing guide surfaces 221 gradually increases from bottom to top. The distance between the top of the two opposing guide surfaces 221 is D. The two guide pins 126 are opposite to each other. The distance between the sides is d. When the two release sliders 22 slide to any position, the distance between the tops of the two opposing guide surfaces 221 is always greater than the distance between the opposite outer sides of the two guide pins 126, i.e., D > d. The distance between the two release sliders 22 is minimum when they abut against the blocking block 413, and maximum when the pivot bracket 12 is in the engaged position. In this state, the distance between the tops of the two opposing guide surfaces 221 is still greater than the distance between the two guide pins 126, ensuring that the trolley 1 and... During the engagement of the lifting mechanism 4, the guide pin 126 can be positioned between the two release sliders 22. As the trolley 1 is gradually inserted into the slot 412, the guide pin 126 can push the two release sliders 22 away from each other, allowing the release sliders 22 to return to the end of the slide groove. This allows the user to push the guide pin 126 again through the release sliders 22. During the connection process between the trolley 1 and the lifting mechanism 4, the user does not need to manually reset the two release sliders 22, which can further reduce the connection difficulty between the trolley 1 and the lifting mechanism 4 and help improve the installation efficiency of the trolley 1 and the lifting mechanism 4.

[0074] As shown in Figures 10 to 13, regarding the disassembly process of the trolley 1 and the lifting mechanism 4, before disassembly, the lifting mechanism 4 is fixedly connected to the trolley 1 via a detachable coupling device. At this time, the latch pin 125 is in the engaged position and maintains engagement with the latch hook 21, while the locking element 13 is in the locked position, simultaneously restricting the pivot bracket 12 and the limiting element 14, as shown in Figure 10. During disassembly, the user first pushes the locking element 13 to the unlocked position by pressing the first operating member 131. At this time, the locking element 13 releases the restriction on the pivot bracket 12 and the limiting element 14, allowing the pivot bracket 12 to rotate freely between the engaged and disengaged positions, while the limiting element 14 will be released by the third reset member 1. Under the action of 43, it automatically rotates to the blocking position. At the same time, the first protrusion 141 and the second protrusion 142 will both rotate upward with the limiting element 14. The first protrusion 141 will enter the sliding path of the locking element 13, and the second protrusion 142 will enter the rotation path of the pivot bracket 12. The first protrusion 141 will block the locking element 13 from moving to the locking position, thereby restricting the locking element 13 to the unlocked position. At this time, even if the user releases the first operating member 131, the locking element 13 will not return to the locked position. Then, the user drags the pivot bracket 12 to rotate by releasing the slider 22, so that the latch pin 125 disengages from the latch hook 21, thereby unlocking the trolley 1 from the lifting mechanism 4. The disassembly of the lifting mechanism 4 is shown in Figure 11. During the rotation of the pivot bracket 12, the pivot bracket 12 pushes the limiting element 14 to reset to the avoidance position via the second protrusion 142. At this time, the first protrusion 141 releases the restriction on the locking element 13. The locking element 13 moves to the locking position under the action of the first reset member 128. However, since the pivot bracket 12 has already rotated to the unlocked position, that is, the stop part 124 of the pivot bracket 12 occupies the space of the locking element 13 in the locking position, the locking element 13 will abut against the surface of the stop part 124 facing away from the pressing member. The locking element 13 still cannot reset to the initial position. At this time, the locking element 13 stops under the obstruction of the stop part 124. In the first position, the locking element 13 abuts against the first protrusion 141, thereby restricting the rotation of the limiting element 14, as shown in Figures 12 and 13. After the lifting mechanism 4 is completely removed, the pivot bracket 12 loses the thrust of the release slider 22 and automatically resets to the engagement position under the action of the first reset member 128, so that a complete locking position can be provided again in the interval area. After the pivot bracket 12 rotates to the engagement position, the stop part 124 separates from the locking element 13. The locking element 13 automatically resets to the locking position under the action of the second reset member 132. The two stop parts 124 are abutted by the locking element 13 to restrict the rotation of the pivot bracket 12, ensuring that the pivot bracket 12 will not arbitrarily disengage from the engagement position.

[0075] Regarding the installation process of the trolley 1 and the lifting mechanism 4, during use, the user first presses the first operating component 131 to move the locking element 13 to the unlocked position, thereby releasing the restriction on the pivot bracket 12 and the limiting element 14. Then, the entire lifting mechanism 4 is pushed upward, causing the latch hook 21 to extend into the trolley 1. The top of the latch hook 21 has a guide surface, and the latch hook 21 will push the pivot bracket 12 to rotate to the disengaged position. When the pivot bracket 12 rotates to the disengaged position, the latch hook 21 is installed in place, and then the pivot bracket 12 will be in the first Under the action of the reset member 128, it automatically resets to the locked position, thereby locking the latch hook 21 and the latch post 125. During the installation process, the movement process of the locking element 13 and the limiting element 14 is the same as that of the disassembly process. In addition, in order to ensure that the release slider 22 can automatically reset, the top of the action part of the release slider 22 in this embodiment is also provided with a guide surface. During the process of the latch hook 21 extending into the trolley 1, the guide pin 126 pushes the two release sliders 22 to automatically separate through the guide surface, so as to avoid the release slider 22 interfering with the installation of the lifting mechanism 4 and the trolley 1.

[0076] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A rail-type lifting system, characterized in that, The device includes a track mechanism and a lifting mechanism. The track mechanism includes a track and a trolley that moves along the track. The lifting mechanism is suspended from the trolley by a detachable coupling device. The detachable coupling device includes: a pair of latch hooks disposed on the lifting mechanism; a pair of movable latches disposed on the trolley, each movable latch including a pivot bracket and a latch pin connected to the pivot bracket. The two pivot brackets are operably rotated to engage or disengage the latch pins from the latch hooks. The movable latches are elastically loaded by a first reset member to maintain the engagement tendency of the latch pins with the latch hooks. The pivot brackets have stops, and a gap region is formed between the stops of the two pivot brackets. A locking element is operably switchable between a locked position and an unlocked position. When the latch pins are engaged with the latch hooks, the gap region provides a locked position to allow the locking element to enter. The two stops are abutted by the locking element to restrict the rotation of the pivot brackets. When the locking element is in the unlocked position, it releases the abutment against the stops.

2. The rail-type lifting system according to claim 1, characterized in that, The sliding direction of the locking element is parallel to the rotation axis of the pivot bracket. The locking element switches between the locked position and the unlocked position by sliding. When the locking element is in the unlocked position, it is disengaged from the interval area.

3. The rail-type lifting system according to claim 2, characterized in that, The locking element is elastically loaded by the second reset member and maintains its tendency to move toward the locked position.

4. The rail-type lifting system according to claim 3, characterized in that, The locking element is fixedly connected to the first operating member, the trolley includes a housing, the locking element is located inside the housing, and the second reset member is limited between the first operating member and the housing.

5. The rail-type lifting system according to claim 2, characterized in that, The detachable coupling device also includes a limiting element. When the locking element is in the unlocked position, the limiting element enters the movement path of the locking element to restrict the movement of the locking element to the locked position.

6. The rail-type lifting system according to claim 5, characterized in that, The limiting element includes a blocking position that restricts the movement of the locking element to the locking position and a yielding position that releases the restriction on the locking element. The limiting element is elastically loaded by the third reset member and maintains the tendency to move towards the blocking position. The locking element in the locking position restricts the limiting element to the yielding position.

7. The rail-type lifting system according to claim 6, characterized in that, The limiting element is rotatably connected to the trolley. A first protrusion is provided on the outer periphery of the limiting element. When in the blocking position, the first protrusion is at least partially within the movement path of the locking element to restrict the locking element from moving to the locking position. When in the locking position, the locking element abuts against the first protrusion to restrict the rotation of the limiting element.

8. The rail-type lifting system according to claim 7, characterized in that, The locking element also includes a pre-lock position, which is between the unlock position and the locked position. The pivot bracket rotates in the direction of disengaging from the latch hook, causing the limiting element to rotate in the avoidance position, and making the pivot bracket at least partially within the movement path of the locking element. The end face of the pivot bracket in the sliding direction of the locking element abuts against the locking element, restricting the locking element to the pre-lock position. The locking element in the pre-lock position restricts the limiting element to the avoidance position.

9. The rail-type lifting system according to claim 8, characterized in that, The limiting block is provided with a second protrusion. In the blocking position, the second protrusion is at least partially within the rotation path of the pivot bracket. The pivot bracket rotates in the direction of disengaging from the latch hook to push the second protrusion, thereby causing the limiting element to rotate to the avoidance position.

10. The rail-type lifting system according to claim 6, characterized in that, The limiting element is fixedly connected to a second operating element, which can be operated to move the limiting element to the avoidance position.

11. The rail-type lifting system according to claim 1, characterized in that, The pivot bracket includes a first locking plate and a second locking plate, a latch pin is fixed between the first locking plate and the second locking plate, and a stop is located on one side opposite to the two first locking plates.

12. The rail-type lifting system according to claim 1, characterized in that, The two pivot brackets rotate toward each other, causing the latch pin to disengage from the latch hook. The stop is located on one side opposite to the two pivot brackets. In the height direction, the stop is at least partially lower than the rotation axis of the pivot brackets. The locking element abuts against the opposite sides of the two stops on both sides to restrict the rotation of the two pivot brackets.

13. The rail-type lifting system according to claim 12, characterized in that, The stop portion is located near the hinge joint between the pivot bracket and the trolley.

14. The rail-type lifting system according to claim 1, characterized in that, The locking element is rotatably connected to the trolley, and the locking element rotates within the interval area to switch between the locked position and the unlocked position.

15. The rail-type lifting system according to claim 1, characterized in that, The trolley or lifting mechanism is provided with a pair of release sliders, which can be operably slid towards each other to push the pivot support to rotate.

16. The rail-type lifting system according to claim 15, characterized in that, The release slider is mounted on the lifting mechanism. The movable latch includes a guide pin connected to the pivot bracket. The two release sliders have guide surfaces on opposite sides. The distance between the two guide surfaces gradually increases from bottom to top. The guide pin acts on the guide surfaces to push the two release sliders away from each other.

17. The rail-type lifting system according to claim 16, characterized in that, The guide pin is coaxially arranged with the latch post.

Images