Rail type lifting system

Abstract

The invention discloses a rail type lifting system, belongs to the field of rail type lifting systems, solves the problem that reinstallation is needed due to the fact that only one movable latch is connected with a latch hook in the installation process, and adopts the technical scheme that the rail type lifting system mainly comprises a rail mechanism and a lifting mechanism, the rail mechanism comprises a rail and a pulley, the lifting mechanism is hung on the pulley through the detachable coupling device, the detachable coupling device comprises movable latches and latch hooks, one of the latch hooks and the movable latches is arranged on the lifting mechanism in pairs, the other one of the latch hooks and the movable latches is arranged on the pulley in pairs, and the movable latches comprise pivoting supports and latch columns. The two pivoting supports can be operated to rotate to drive the latch column to be connected with or separated from the latch hook, and one pivoting support rotates to drive the other pivoting support to rotate synchronously through the transmission mechanism. The invention is mainly used for ensuring that the two latch columns can be simultaneously engaged with the latch hook.

Description

Technical Field

[0001] The invention discloses a track-type lifting system, belonging to the technical field of track-type lifting systems. Background Art

[0002] Track-type lifting systems, also known as overhead lifts, are primarily used to address mobility, toileting, and bathing needs for the elderly, those with mobility impairments, and those unable to walk. They are widely used in hospitals, nursing homes, rehabilitation centers, and homes. They are primarily nursing devices that facilitate barrier-free mobility for people with disabilities and are used for short-distance transfers and rehabilitation care for patients.

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

[0004] In the detachable overhead rail transfer machine in the prior art, the main unit is suspended on the pulley through a detachable coupling device. The detachable coupling device includes a pair of latch hooks and a pair of movable latches. However, in the prior art, the two movable latches are independent of each other. It is easy for one movable latch to engage with the latch hook while the other movable latch has not yet engaged with the latch hook. In this state, the user needs to disassemble the pulley and the main unit and reinstall them, which is prone to repeated installation and increases the difficulty of installing the main unit and the pulley. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that during the installation process, only one movable latch is easily engaged with the latch hook, which requires reinstallation. For this purpose, a track-type lifting system is provided, in which the two movable latches rotate synchronously to ensure that the two latch columns can engage with the latch hook at the same time.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A track-type lifting system includes a track mechanism and a lifting mechanism, the track mechanism includes a track and a pulley moving along the track, the lifting mechanism is suspended on the pulley through a detachable coupling device, the detachable coupling device includes a movable latch and a latch hook, one of the latch hooks and the movable latch is arranged in a pair on the lifting mechanism, and the other is arranged in a pair on the pulley, the movable latch includes a pivot bracket and a latch column connected to the pivot bracket, the two pivot brackets can be operably rotated to drive the latch column to engage or disengage the latch hook, a transmission mechanism is provided between the two pivot brackets, and the rotation of one pivot bracket drives the other pivot bracket to rotate synchronously through the transmission mechanism.

[0008] The beneficial effects of the present invention are:

[0009] In the present invention, a transmission mechanism is provided between the two pivot brackets, and the two pivot brackets are rotated synchronously through the transmission mechanism, that is, when one of the pivot brackets is pushed to rotate, the other pivot bracket is operated to rotate, and the pivot bracket drives the other pivot bracket to rotate through the transmission mechanism, and the rotation angles of the two pivot brackets are the same. Therefore, when one of the pivot brackets is rotated to drive the latch column to engage with or disengage the latch hook, the other pivot bracket will be rotated at the same time under the action of the transmission mechanism to drive the latch column to engage with or disengage the latch hook, that is, the two pivot brackets can simultaneously drive the two latch columns to engage with or disengage the latch hook, ensuring The reliability of the engagement of the movable latch with the latch hook avoids the phenomenon of the lifting mechanism falling off due to the failure of one latch column to fully engage with the latch hook, making the connection between the lifting mechanism and the pulley safer and more reliable, which helps to improve the safety of the use of the lifting mechanism; in addition, during the installation and disassembly of the lifting mechanism, the user can push one of the pivot brackets to achieve the engagement and disengagement of the two movable latches with the latch hooks, which helps to reduce the difficulty of installation and disassembly of the lifting mechanism, and can avoid the phenomenon of repeated rotation of the pivot bracket during installation or disassembly, making the installation of the lifting mechanism and the pulley smoother, which helps to improve the user experience.

[0010] Preferably, the transmission mechanism includes two rotating members arranged in pairs and a transmission member that transmits the two rotating members in a transmission connection. The two rotating members are respectively coaxially arranged with the two pivot brackets and are fixedly connected. Adopting the above-mentioned technical solution, the rotating members are coaxially arranged with the pivot brackets and are fixedly connected, which ensures that the rotating members and the pivot brackets can maintain synchronous rotation. The two rotating members achieve synchronous and counter-rotating rotation through the transmission member. The rotational state of the two rotating members can be directly transmitted to the two pivot brackets, thereby achieving synchronous and counter-rotating rotation of the two pivot brackets.

[0011] Preferably, the transmission member is a tooth portion provided on the surface of the rotating member, and the two rotating members are kept in meshing with each other through the tooth portion to achieve synchronous and reverse rotation. The above-mentioned technical solution is adopted, that is, the two rotating members are gears, and the meshing of the two gears is used to achieve synchronous and reverse rotation, so that the overall structure of the transmission mechanism is simpler, the space occupied is smaller, and it can be suitable for a more compact installation space; in addition, the two rotating members are directly meshed, which reduces the number of transmission components between the two rotating members and reduces the energy loss during the power transmission process. The force required by the user to push the pivot bracket to rotate is smaller, which helps to improve the user experience; secondly, the direct meshing of the two rotating members can reduce the possibility of failure of the transmission mechanism, make the use of the transmission mechanism more stable and reliable, help to increase the service life of the transmission mechanism, and also improve the accuracy of power transmission, ensure that the rotation angles of the two pivot brackets are consistent, and make the engagement of the movable latch and the latch hook safer and more reliable.

[0012] Preferably, the teeth are arranged in a fan-shaped pattern, with the teeth located on opposite sides of the two rotating members. With this technical solution, because the pivoting bracket drives the latch hook to engage and disengage with the latch post through a relatively small rotation angle, fewer teeth are required during rotation. Arranging the teeth in a fan-shaped pattern eliminates unused teeth, improving tooth utilization and further reducing the space occupied by the transmission mechanism.

[0013] Preferably, the transmission member is a transmission belt that has an interference fit with the rotating member, wherein rotation of one rotating member drives the other rotating member in the opposite direction via the transmission belt. Adopting the aforementioned technical solution, the transmission belt simultaneously drives the rotation of both rotating members, effectively reducing the difficulty of installing and removing the transmission belt and rotating member, facilitating easier maintenance of the transmission mechanism and improving the efficiency of transmission belt installation and replacement.

[0014] Preferably, the transmission belt is wound around two rotating parts in an eight-shaped pattern.

[0015] Preferably, the transmission member is a connecting rod assembly, wherein one rotating member rotates through the connecting rod assembly to drive the other rotating member to rotate in the opposite direction.

[0016] Preferably, the connecting rod assembly includes two fixed rods distributed radially along the rotating part and a movable rod hinged to the two fixed rods at both ends. The two fixed rods are respectively fixed to the two rotating parts, one of the fixed rods is on the upper side of the rotating part, and the other fixed rod is on the lower side of the rotating part.

[0017] Preferably, one of the rotating members drives the other rotating member to rotate synchronously and in the same direction through a transmission member.

[0018] Preferably, the pivot bracket has a stop portion, and a spacing area is formed between the stop portions of the two pivot brackets. The detachable coupling device also includes a locking element, which can be operated to switch between a locked position and an unlocked position. When the latch column is engaged with the latch hook, the spacing area provides a locked position and allows the locking element to enter. The two stop portions are abutted by the locking element to limit the rotation of the pivot bracket, and the locking element in the unlocked position releases the abutment against the stop portion. The latch hook is locked when the two locking members are engaged, and the two locking members are locked when the two locking members are engaged. The connection is safer and more reliable, which helps to improve the safety of the lifting system. Secondly, during the unlocking process of the latch column and the latch hook, the locking element is first operated to the unlocking position to release the locking element from the abutment against the stop portion, so that the pivot bracket can rotate normally, thereby separating the latch column and the latch hook from each other, realizing the disassembly of the lifting mechanism and the pulley. The overall structural assembly method of the locking element, the first reset member and the movable latch in the present invention is relatively simple. At the same time, the installation and disassembly process of the latch hook and the movable latch only needs to operate the locking element and the pivot bracket in sequence to complete, that is, the entire operation process is relatively simple, which can realize rapid disassembly and installation of the lifting mechanism, and can significantly improve the disassembly and installation efficiency of the lifting mechanism.

[0019] Preferably, the sliding direction of the locking element is parallel to the rotation axis of the pivot bracket, and the locking element switches between a locked position and an unlocked position by sliding, and the locking element in the unlocked position is disengaged from the spacing area.

[0020] Preferably, the locking element is elastically loaded by a second reset element to maintain its tendency to move toward the locked position. By adopting the aforementioned technical solution, the second reset element can automatically reset the locking element to the locked position without manual operation. It can also ensure that after the latch post and the latch hook engage, the locking element can be reset to the locked position, thereby restricting the pivoting bracket and preventing the locking element from being incomplete due to forgetfulness. This ensures that the locking element can perform its locking function, making the locking of the latch post and the latch hook more secure and reliable, thereby helping to improve the safety of the lifting system.

[0021] Preferably, the locking element is fixedly connected to a first operating member, the pulley includes a housing, the locking element is located within the housing, and the second reset member is constrained between the first operating member and the housing. Using the aforementioned technical solution, a user can control the locking element to switch between a locked position and an unlocked position via the first operating member. The first operating member makes it easier for the user to apply force, significantly reducing the difficulty of operation.

[0022] Preferably, the detachable coupling device further comprises a limiting element, and when the locking element is in the unlocked position, the limiting element enters into the movement path of the locking element to limit the movement of the locking element toward the locked position. With the above-mentioned technical solution, since the pivot bracket is elastically loaded by the first reset member, the pivot bracket automatically rotates toward the position engaged with the latch hook. Therefore, when the pivot bracket loses external force, space is provided between the two stop portions for the locking element to reach the locked position, and the limiting element restricts the locking element. Even if the pivot bracket is not rotated, the locking element cannot return to the locked position, ensuring that the pivot bracket can rotate freely and smoothly, effectively preventing the need to repeatedly operate the locking element to disengage from the locked position, and significantly simplifying the unlocking process of the movable latch and the latch hook.

[0023] Preferably, the limiting element includes a blocking position that limits the movement of the locking element toward the locked position and a circumventing position that releases the restriction on the locking element. The limiting element is elastically loaded by a third reset element to maintain a movement tendency toward the blocking position. The locking element in the locked position restricts the limiting element to the circumventing position. With the above technical solution, when the locking element is operated to the unlocked position, the limiting element will automatically move to the blocking position under the action of the third reset element, and the locking element can be promptly restricted to the unlocked position without manual operation, ensuring that the limiting element can reliably restrict the locking element. At the same time, manual operation can be eliminated, thereby improving the linkage of the detachable coupling device.

[0024] Preferably, the limiting element is rotatably connected to the pulley, and a first protrusion is provided on the outer peripheral side 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 limit the movement of the locking element toward the locked position. When the locking element is in the locked position, it abuts against the first protrusion to limit the rotation of the limiting element. By adopting the above technical solution, the rotatable arrangement 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.

[0025] Preferably, the locking element further comprises a pre-locking position, which is between the unlocking position and the locking position. The pivot bracket rotates in the direction of disengaging from the latch hook, driving the limiting element to rotate toward the avoidance position, and causing the pivot bracket to be 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 to limit the locking element to the pre-locking position. The locking element in the pre-locking position limits the limiting element to the avoidance position. With the above technical solution, the movable latch can reset the limiting element to the avoidance position during the unlocking process, thereby releasing the restriction of the limiting element on the locking element, allowing the locking element to automatically reset to the locked position and limit the limiting element to the avoidance position. Afterwards, when the pivot bracket rotates in the direction of engagement with the latch hook, the limiting element will still remain in the avoidance position under the restriction of the locking element. After the latch column engages with the latch hook, the limiting element can smoothly move from the unlocking position to the locking position. That is, during the entire unlocking process, the movement of the limiting element does not require manual operation, which can effectively simplify the operation steps of the detachable coupling device, making the lifting mechanism and the pulley more convenient to operate. The installation and disassembly are simpler and faster, which helps to improve the lifting mechanism and the installation and disassembly efficiency; in addition, the components used to operate the limit element can be eliminated, the structure of the limit element can be simplified, the installation difficulty of the limit element can be reduced, and the space occupied by the limit element can be reduced; 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 portion at the pre-locking position. At this time, the locking element forms a restriction on the limit element. Later, during the rotation of the pivot bracket, the limit element is still held in the avoidance position by the locking element, and after the pivot bracket is reset, the locking element can automatically reset to the locking position to complete the restriction on the pivot bracket.

[0026] Preferably, the limit block is provided with a second protrusion. In the blocking position, the second protrusion is at least partially located in the rotation path of the pivot bracket. The pivot bracket rotates in the direction of disengaging the latch hook to push the second protrusion to drive the limit element to rotate toward the avoidance position.

[0027] Preferably, the limiting element is fixedly connected to a second operating member, and the second operating member can be operated to drive the limiting element to move toward the avoidance position.

[0028] Preferably, the pivot bracket includes a first lock plate and a second lock plate, the latch post is fixed between the first lock plate and the second lock plate, the stop portion is located on opposite sides of the two first lock plates, and the two second lock plates are connected by a transmission mechanism. With the above technical solution, the latch post is located between the first lock plate and the second lock plate, and after the latch post is engaged with the latch hook, the force-bearing position of the latch bracket is also located between the first lock plate and the second lock plate, which can make the force on the pivot bracket more balanced, help reduce the shear force on the pivot bracket, reduce the possibility of deformation or breakage of the pivot bracket, help extend the service life of the pivot bracket, and also improve the safety of the lifting system. In addition, the stop portion and the transmission mechanism are respectively provided on the first lock plate and the second lock plate, which can effectively avoid the possibility of interference between the locking element and the transmission mechanism.

[0029] Preferably, the pulley or lifting mechanism is provided with a sensor for sensing the position state of the pivot bracket, the sensor is electrically connected to an alarm, the pivot bracket includes an engagement position for engaging the latch column with the latch hook and a disengagement position for disengaging the latch column from the latch hook, the pivot bracket is elastically loaded by the first reset member and maintains a tendency to rotate toward the engagement position, when the pivot bracket is in the engagement position and the disengagement position, the sensor releases the alarm, and when the pivot bracket is between the engagement position and the disengagement position, the sensor triggers the alarm. When the latch post and the latch hook are not fully engaged, the latch hook will abut against the latch post, thereby preventing the pivot bracket from returning to the engaged position. At this time, the pivot bracket will stay between the engaged position and the disengaged position. In this state, the latch post and the latch hook are not reliably engaged. In order to prevent the user from mistakenly believing that the latch post and the latch hook are already engaged, the sensor needs to trigger the alarm to warn the user that the latch post and the latch hook are not fully engaged and need to be reinstalled, thereby ensuring that the latch post can maintain a reliably combined with the latch hook, thereby further improving the safety of the lifting system.

[0030] Preferably, a trigger member is provided on the pivoting bracket. When the pivoting bracket is in the engaged position, the trigger member is completely within the sensing range of the sensor. When the pivoting bracket is in the disengaged position, the trigger member is completely out of the sensing range of the sensor. When the pivoting bracket is between the engaged position and the disengaged position, the trigger member is partially within the sensing range of the sensor.

[0031] Preferably, the sensor is mounted on the lifting mechanism, and the movable latch includes a guide pin connected to the pivot bracket. The trigger member is mounted on the end of the guide pin, and the guide pin is coaxially arranged with the latch post. This technical solution ensures that the latch post and the guide pin have the same motion path, allowing changes in the guide pin's position to accurately reflect changes in the latch post's position, thereby improving the sensor's accuracy and reliability in sensing the pivot bracket's position.

[0032] Preferably, each pivoting bracket is provided with two guide pins, located on the extension lines of the two ends of the latch column. At least one guide pin in each pivoting bracket is mounted with a trigger, and the number of sensors corresponds to the number of triggers. With the aforementioned technical solution, both pivoting brackets are equipped with triggers, and the triggers also have corresponding sensors. If one sensor malfunctions, the other can still determine the position of the pivoting bracket, effectively extending the sensor's sensing time for the pivoting bracket, further improving the safety of the lifting system.

[0033] Preferably, the two pivot brackets approach each other to drive the latch column to disengage the latch hook, and the sensor is arranged to be tilted downward in the unlocking direction of the pivot bracket. When the pivot bracket is in the engaged position, the highest end of the sensor is directly in front of the trigger member.

[0034] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below with reference to the accompanying drawings:

[0036] Figure 1 Schematic diagram of the structure of the track-type lifting system of the present invention;

[0037] Figure 2 A cross-sectional view of the pulley and the lifting mechanism in the rail-type lifting system of the present invention;

[0038] Figure 3 An exploded view of the pulley and the lifting mechanism in the rail-type lifting system of the present invention;

[0039] Figure 4 It is a structural schematic diagram of the locking element in the track-type lifting system of the present invention in the locked position;

[0040] Figure 5 A cross-sectional view of a locking element in a track-type lifting system of the present invention in a locked position;

[0041] Figure 6 A schematic structural diagram of a locking element in an unlocked position in a rail-type lifting system of the present invention;

[0042] Figure 7A cross-sectional view of a locking element in an unlocked position in the rail-type lifting system of the present invention;

[0043] Figure 8 It is a structural schematic diagram of the locking element in the track-type lifting system of the present invention in the pre-locking position;

[0044] Figure 9 A cross-sectional view of a locking element in a track-type lifting system of the present invention in a pre-locking position;

[0045] Figure 10 A front view of the locking element in the track-type lifting system of the present invention in the locked position;

[0046] Figure 11 A front view of the locking element in the track-type lifting system of the present invention in the unlocked position;

[0047] Figure 12 This is a front view of the pivoting bracket in the track-type lifting system of the present invention during rotation;

[0048] Figure 13 A front view of the locking element in the track-type lifting system of the present invention in the pre-locking position;

[0049] Figure 14 A cross-sectional view of the top of the lifting mechanism in the track-type lifting system of the present invention;

[0050] Figure 15 A front view of the pivoting bracket in the engaged position in the rail-type lifting system of the present invention;

[0051] Figure 16 A front view of the pivoting bracket in the track-type lifting system of the present invention in the disengaged position;

[0052] Figure 17 This is a simplified structural diagram of two pivot brackets in Example 2;

[0053] Figure 18 This is a simplified structural diagram of the two pivot brackets in Example 3.

[0054] Reference numerals: 1, pulley; 11, housing; 111, fixed plate; 12, pivot bracket; 121, first lock plate; 122, second lock plate; 1221, rotating member; 1222, tooth portion; 1223, transmission belt; 1224, fixed rod; 1225, movable rod; 123, rotating shaft; 1231, rotating axis; 124, stop portion; 1241, abutment surface; 1242, end surface; 125, latch column; 126, guide pin; 1261, trigger member; 1262, sensor; 128, first reset Part; 13. Locking element; 131. First operating element; 132. Second reset element; 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. Avoidance groove; 3. Track; 4. Lifting mechanism; 41. Main unit; 411. Top wall; 412. Slot; 413. Blocking block; 42. Hanging rod. DETAILED DESCRIPTION

[0055] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0058] Example 1:

[0059] like Figures 1 to 16 As shown, this embodiment shows a track 3 mechanism type lifting system, including a track 3 mechanism and a lifting mechanism 4, the track 3 mechanism includes a track 3 and a pulley 1 moving along the track 3, the lifting mechanism 4 includes a main unit 41 and a suspension rod 42, wherein the top of the pulley 1 is rotatably connected to a roller 15, the bottom of the track 3 is provided with a slot for the pulley 1 to extend into, the edge of the slot forms a slide rail for the roller 15 to slide, and the roller 15 slides along the slide rail to realize a sliding connection between the pulley 1 and the track 3, a winch is provided in the main unit 41, a traction belt is wound on the winch, and the traction end of the traction belt extends from the bottom end of the main unit 41 and is connected to the suspension rod 42.

[0060] like Figure 2 As shown, the lifting mechanism 4 in this embodiment is detachably connected to the pulley 1 through a detachable coupling device. The detachable coupling device includes a pair of latch hooks 21 arranged on the top of the lifting mechanism 4 and a pair of movable latches arranged on the pulley 1. The movable latch includes a pivot bracket 12 hinged to the pulley 1 and a latch column 125 connected to the pivot bracket 12. The pivot bracket 12 includes an engagement position for engaging the latch column 125 with the latch hook 21 and a disengagement position for disengaging the latch column 125 from the latch hook 21. The two pivot brackets 12 can be operated to rotate in opposite directions and switch between the engagement position and the disengagement position. A transmission mechanism is provided between the two pivot brackets 12, and the rotation of one pivot bracket 12 drives the other pivot bracket 12 to rotate synchronously and in the opposite direction through the transmission mechanism.

[0061] In this embodiment, a transmission mechanism is provided between the two pivot brackets 12, and the two pivot brackets 12 are rotated synchronously by the transmission mechanism, that is, when one of the pivot brackets 12 is pushed to rotate, the other pivot bracket 12 is operated to rotate, and the pivot bracket 12 drives the other pivot bracket 12 to rotate through the transmission mechanism, and the rotation angles of the two pivot brackets 12 are the same. Therefore, when one of the pivot brackets 12 is rotated to drive the latch column 125 to engage or disengage the latch hook 21, the other pivot bracket 12 will be rotated at the same time under the action of the transmission mechanism to drive the latch column 125 to engage or disengage the latch hook 21, that is, the two pivot brackets 12 can simultaneously drive the two latch columns 125 to engage with the latch hook 21 The locking mechanism 4 can be locked or unlocked by the user, so that the user can lock the lifting mechanism 4. The locking mechanism 4 can be locked or unlocked by the user, so that the user can lock the lifting mechanism 4.

[0062] like Figure 2 As shown, the transmission mechanism described in this embodiment includes two rotating members 1221 arranged in pairs and a transmission member that connects the two rotating members 1221. The two rotating members 1221 are respectively fixed to the two pivot brackets 12, and the rotating members 1221 are coaxially arranged with the pivot brackets 12 to which they are connected, thereby ensuring that the rotating members and the pivot brackets 12 can maintain synchronous rotation. The two rotating members 1221 are synchronized and rotated in opposite directions through the transmission member. The rotation state of the two rotating members 1221 can be directly transmitted to the two pivot brackets 12, thereby realizing synchronous and reverse rotation of the two pivot brackets 12.

[0063] The transmission member described in this embodiment is a tooth portion 1222 provided on the surface of the rotating member 1221, that is, the rotating member 1221 is a gear, and the two rotating members 1221 achieve synchronous and counter-rotation through the meshing of the tooth portions 1222. In addition, since the pivot bracket 12 drives the latch hook 21 to engage and disengage with the latch column 125 at a small rotation angle, the number of tooth portions 1222 actually participating in the meshing is small during the rotation of the pivot bracket 12. Therefore, the tooth portions 1222 described in this embodiment are fan-shaped, that is, the rotating member 1221 is a fan-shaped gear, and the angle of distribution of the tooth portions 1222 is substantially the same as the maximum rotation angle of the pivot bracket 12, thereby ensuring that all tooth portions 1222 can participate in the meshing during the rotation of the pivot bracket 12, thereby improving the utilization rate of the tooth portions 1222. In addition, the tooth portions 1222 are arranged to be fan-shaped, Eliminating the other useless teeth 1222 can further reduce the space occupied by the transmission mechanism, making the overall structure of the movable latch more compact and suitable for a more compact installation space, which helps to reduce the volume of the pulley 1; secondly, the two rotating members 1221 are directly engaged, reducing the transmission components between the two rotating members 1221, reducing energy loss during power transmission, and the force required for the user to push the pivot bracket 12 to rotate is smaller, which helps to improve the user experience; in addition, the two rotating members 1221 are directly engaged, which can reduce the possibility of failure of the transmission mechanism, make the use of the transmission mechanism more stable and reliable, help to increase the service life of the transmission mechanism, and also improve the accuracy of power transmission, ensuring that the rotation angles of the two pivot brackets 12 remain consistent, making the engagement of the movable latch with the latch hook 21 safer and more reliable.

[0064] The lifting mechanism 4 described in this embodiment also includes a locking element 13 arranged on the pulley 1 through a detachable coupling device, and the movable latch is also connected to a first reset member 128. The movable latch is elastically loaded by the first reset member 128 to maintain the engagement tendency of the latch column 125 and the latch hook 21. The pivot bracket 12 has a stop portion 124, and a spacing area is formed between the stop portions 124 of the two pivot brackets 12, and the locking element 13 can be operated to switch between the locked position and the unlocked position. When the pivot bracket 12 is in the engaged position, the spacing area 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 portions 124 are abutted by the locking element 13 to limit the rotation of the pivot bracket 12. When the locking element 13 is in the unlocked position, the locking element 13 releases the abutment against the stop portion 124. At this time, the pivot bracket 12 loses the restriction of the locking element 13 and can rotate freely between the engaged position and the disengaged position, thereby realizing the engagement and disengagement of the latch column 125 with the latch hook 21.

[0065] The lifting mechanism 4 described in the embodiment of the present invention is suspended on the pulley 1 through 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 column 125. A spacing area 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 column 125 is engaged with the latch hook 21, the spacing area 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 is simultaneously engaged with the two stop portions 124 abut against each other, thereby limiting the rotation of the two pivot brackets 12, thereby ensuring that the latch column 125 can remain locked with the latch hook 21. Therefore, even if a larger external force pushes the pivot bracket 12, the pivot bracket 12 will not leave the locked position, avoiding the phenomenon of the latch column 125 being unlocked at will, ensuring that the latch column 125 and the latch hook 21 can 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 return member 128, thereby maintaining the engagement tendency of the latch column 125 and the latch hook 21. Therefore, under the action of the first return member 128, there is no large external force. The first locking member 128 is engaged with the latch post 125 and the second locking member 13, and the latch post 125 is engaged with the latch post 21. The second locking member 128 is engaged with the latch post 125 and the second locking member 13, and the latch post 125 is engaged with the latch post 21. The second locking member 128 is engaged with the latch post 125 and the second locking member 13, and the latch post 125 is engaged with the latch post 21. The fixed element 13 releases the abutment against the stop portion 124, allowing the pivot bracket 12 to rotate normally, thereby separating the latch column 125 and the latch hook 21 from each other, thereby realizing the disassembly of the lifting mechanism 4 and the pulley 1. In this embodiment, the overall structural assembly method of the locking element 13, the first reset member 128 and the movable latch is relatively simple. At the same time, the installation and disassembly process of the latch hook 21 and the movable latch only needs to operate the locking element 13 and the pivot bracket 12 in sequence to complete, that is, the entire operation process is relatively simple, which can realize the rapid disassembly and installation of the lifting mechanism 4, and can significantly improve the disassembly and installation efficiency of the lifting mechanism 4.

[0066] 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 engaged position to the disengaged position, that is, when the two pivot brackets 12 rotate toward each other, the two pivot brackets 12 approach each other, and thus the latch column 125 can be disengaged from the latch hook 21, thereby realizing the separation of the latch column 125 from the latch hook 21; correspondingly, when the two pivot brackets 12 rotate away from each other, the two pivot brackets 12 move away from each other, and thus the latch column 125 can be engaged with the latch hook 21, thereby realizing the locking of the lifting mechanism 4 and the pulley 1; in addition, in order to avoid relative displacement of the two latch hooks 21, the two latch hooks 21 in this embodiment are a whole.

[0067] Of course, it is understandable that in other embodiments, the two latch hooks 21 can also be arranged in opposite directions. In this case, the rotation directions of the two pivot brackets 12 from the engaged position to the disengaged position are opposite, that is, when the two pivot brackets 12 rotate in opposite directions, the two pivot brackets 12 move away from each other, and thus the latch column 125 can be disengaged from the latch hook 21, thereby realizing the separation of the latch column 125 from the latch hook 21; correspondingly, when the two pivot brackets 12 rotate toward each other, the two pivot brackets 12 approach each other, thereby making the latch column 125 engage with the latch hook 21, thereby realizing the locking of the lifting mechanism 4 and the pulley 1.

[0068] In addition, Figure 4 As shown, in this embodiment, two first return members 128 are provided in the pulley 1, and the two first return members 128 correspond to the two pivot brackets 12. The first return member 128 is a tension spring, and one end of the first return member 128 is hung in the pulley 1, and the other end is on the side of the pivot bracket 12 away from the stop portion 124; of course, it can be understood that in other embodiments, the two pivot brackets 12 can also share a first return member 128, and the first return member 128 is on the upper side of the two pivot brackets 12, and the two ends of the first return member 128 are respectively connected to the opposite sides of the two pivot brackets 12. After the first return 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.

[0069] like Figures 2 to 4As shown, the pulley 1 described in this embodiment includes a shell 11, a locking element 13 is fixedly connected to a first operating member 131, the locking element 13 is inside the shell 11, the first operating member 131 is outside the shell 11, the locking element 13 is elastically loaded with a second reset member 132, the second reset member 132 is a compression spring, and the second reset member 132 is restricted between the first operating member 131 and the shell 11. The user drives the locking element 13 from the locked position to the unlocked position by pressing the first operating member 131. 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 spacing area between the two stop portions 124. After the user releases the first operating member 131, the second reset member 132 acts on the first operating member. The first operating member 131 controls the locking member 13 to switch between the locked position and the unlocked position. The first operating member 131 can make the user's force application simpler and easier, which can significantly reduce the difficulty of user operation. In addition, the second resetting member 132 can automatically reset the locking member 13 to the locked position without manual operation. At the same time, it can also ensure that after the latch column 125 is engaged with the latch hook 21, the locking member 13 can be reset to the locked position, thereby restricting the pivot bracket 12 to avoid the situation where the lock is not in place due to forgetfulness, ensuring that the locking member 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.

[0070] like Figure 4 and Figure 5 As shown, the pivot bracket 12 in this embodiment is rotatably connected to the pulley 1 via a rotating shaft 123. The rotating shaft 123 is located at the upper end of the pivot bracket 12, and the latch column 125 is located at the lower end of the pivot bracket 12. During the rotation of the pivot bracket 12, the latch column 125 rotates around the rotating 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. For details, refer to Figure 4 The rotation direction of the left pivot bracket 12 from the engaged position to the disengaged position is counterclockwise, and the rotation direction of the right pivot bracket 12 from the engaged position to the disengaged position is clockwise. The stop portion 124 is provided on the opposite side of the two pivot brackets 12. In the height direction, the stop portion 124 is at least partially lower than the rotation axis 1231 of the pivot bracket 12. The opposite side surfaces of the two stop portions 124 are abutment surfaces 1241. The overall shape of the locking element 13 is a rectangular parallelepiped. When the locking element 13 is in the locked position, the side walls 134 on both sides of the locking element 13 respectively abut against the abutment surfaces 1241 of the two stop portions 124, thereby limiting the rotation of the two pivot brackets 12.

[0071] like Figures 4 to 9As shown, the detachable coupling device in this embodiment further includes a limiting element 14, which is located between the two pivot brackets 12, and in the height direction, the limiting element 14 is located on the lower side of the locking element 13, and the limiting element 14 has a blocking position as an avoidance position, and the limiting element 14 is connected to a third reset member 143, and the limiting element 14 is elastically loaded by the third reset member 143 to maintain a movement trend toward the blocking position, with reference to FIG. Figure 4 and Figure 5 As shown, 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 and restricts the limiting element 14 to the avoidance position. When the locking element 13 moves to the unlocked position, the locking element 13 releases the restriction on the limiting element 14, and the limiting element 14 automatically returns to the blocking position under the action of the third reset member 143. 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 returning to the initial position. Since the pivot bracket 12 is elastically loaded by the first reset member 128, the pivot bracket 12 will automatically rotate toward the position engaged with the latch hook 21. Therefore, when the pivot bracket 12 loses external force, the two stop portions 124 are It will provide space for the locking element 13 to reach the locked position, and the limiting element 14 will limit the locking element 13. Even if the pivot bracket 12 is not rotated, the locking element 13 cannot return to the locked position, ensuring that the pivot bracket 12 can rotate freely and smoothly, and can effectively prevent the need to repeatedly operate the locking element 13 to disengage from the locked position, which can significantly simplify the unlocking process of the movable latch and the latch hook 21; in addition, when the locking element 13 is operated to the unlocked position, the limiting element 14 will automatically move to the blocking position under the action of the third reset member 143, and can limit the locking element 13 to the unlocked position in time without manual operation, ensuring that the limiting element 14 can form a reliable restriction on the locking element 13, while also eliminating manual operation and improving the linkage of the detachable coupling device.

[0072] In this embodiment, the limiting element 14 is rotationally connected to the pulley 1, and the third reset member 143 is a torsion spring. One end of the torsion spring acts on the pulley 1, and the other end acts on the limiting element 14. A first protrusion 141 is provided on the outer peripheral side of the limiting element 14. When in the blocking position, the first protrusion 141 is at least partially in the movement path of the locking element 13 to limit the movement of the locking element 13 to the locking position. The locking element 13 in the locking position abuts against the first protrusion 141 to limit the rotation of the limiting element 14. The rotation 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.

[0073] like Figure 5As shown, when the locking element 13 is in the locked position, the locking element 13 is at least partially located directly above the first protrusion 141, and the limiting element 14 drives the first protrusion 141 to rotate upward under the action of the third restoring member 143, and the first protrusion 141 abuts against the bottom wall 135 of the limiting element 14 and blocks the rotation of the limiting element 14, thereby limiting the limiting element 14 to the avoidance position, refer to Figure 6 and Figure 7 As shown, when the locking element 13 slides to the unlocked position, the locking element 13 disengages from the top of the first protrusion 141, that is, the locking element 13 releases the restriction on the limiting element 14. At this time, the limiting element 14 will automatically rotate to the blocking position under the action of the third reset member 143. At this time, the first protrusion 141 will enter the movement path of the locking element 13, that is, the first protrusion 141 is at least partially in front of the locking element 13. After the user releases the first operating member 131, the locking element 13 will automatically move to the locked position, and the front wall 136 of the locking element 13 will abut against the first protrusion 141, thereby maintaining it in the unlocked position.

[0074] Of course, it is understandable that in other embodiments, the limiting element 14 can also be slidably connected to the pulley 1, and the corresponding third reset member 143 is a compression spring. The limiting element 14 is fixedly connected to the second operating member. When the locking element 13 slides to the unlocking 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 use the second operating member to drive the limiting element 14 to the avoidance position. After the limiting element 14 leaves the blocking position, the locking element 13 automatically slides to the locking position under the action of the second reset member 132.

[0075] like Figure 8 and Figure 9As shown, the locking element 13 in this embodiment also includes a pre-locking position, which is between the unlocking position and the locking position. The outer peripheral side of the limiting element 14 is further provided with a second protrusion 142. When the limiting element 14 is in the blocking position, the second protrusion 142 is at least partially in the rotation path of the pivot bracket 12. During the process of the pivot bracket 12 rotating to the disengaged position, the pivot bracket 12 pushes the second protrusion 142 to drive the limiting element 14 to return to the avoidance position. When the user presses the first operating member 131, the locking element 13 is directly pushed to the unlocking position. At this time, the lock The fixing element 13 releases the restriction on the pivot bracket 12 and the limiting element 14, and the pivot bracket 12 can rotate freely between the engaged position and the disengaged position, and the limiting element 14 will automatically rotate to the blocking position under the action of the third reset member 143. After the user releases the first operating member 131, the locking element 13 abuts against the first protrusion 141 of the limiting element 14 under the action of the second reset member 132, thereby being restricted to the unlocked position. When the pivot bracket 12 rotates to the disengaged position, the side of the pivot bracket 12 contacts the second protrusion 142, and As the pivot bracket 12 continues to rotate, the pivot bracket 12 pushes the limiting element 14 to rotate toward the avoidance position through the second protrusion 142. When the pivot bracket 12 rotates to the unlocked position, the pivot bracket 12 drives the limiting element 14 to return 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 will release the restriction on the locking element 13, and the locking element 13 continues to slide toward the initial position under the action of the second reset member 132. However, since the pivot bracket 12 has been rotated to the unlocked position, that is, the stop position of the pivot bracket 12 The stopper 124 occupies the space of the locking element 13 in the locked position, so the front wall 136 of the locking element 13 abuts against the end surface 1242 of the stopper 124 in the sliding direction 133 of the locking element 13, and the locking element 13 still cannot return to the initial position. At this time, the locking element 13 stays in the pre-locked position under the obstruction of the stopper 124. 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 also blocks 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 return member 128 pulls the pivot bracket 12, causing the pivot bracket 12 to automatically rotate toward the engaged position until the pivot bracket 12 returns to the engaged position. During the return process, the force applied to the second protrusion 142 is gradually released, but the limiting member 14 used to restrict the locking element 13 remains restricted to the avoidance position. After the pivot bracket 12 returns to the locked position, the stop portion 124 and the locking element 13 separate from each other, and the locking element 13, under the action of the second return member 132, enters the spacing area and reaches the locked position, thereby restricting the pivot bracket 12 again, ensuring that the pivot bracket 12 will not arbitrarily disengage from the engaged position, making the connection between the pulley 1 and the lifting mechanism 4 more stable and reliable.

[0076] In this embodiment, the first return member 128 forms a double protection for the elastic loading of the pivoting bracket 12 and the restriction of the locking element 13, which can significantly reduce the possibility of the latch column 125 and the latch hook 21 being disengaged. In addition, when the pivoting bracket 12 reaches the engaged position, the locking element 13 automatically returns to the locked position and restricts the pivoting 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 forgetfulness. The double protection of the locking element 13 and the first return member 128 can always be effective, 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 transfer machine. Secondly, the overall structure of the first return member 128 and the locking element 13 is relatively simple. During the installation and removal process, the user only needs to press the locking element 13 and then push the pivoting bracket 12 to rotate. The entire operation process is relatively simple. In addition, the locking element 13 does not need to be kept pressed during the entire installation and removal process, and the user can also complete the entire operation process with one hand, which helps to improve the installation and removal efficiency of the lifting mechanism 4.

[0077] In addition, the movable latch can reset the limiting element 14 to the avoidance position during the unlocking process, thereby releasing the restriction of the limiting element 14 on the locking element 13, allowing the locking element 13 to move to the unlocked position and restricting the limiting element 14 to the avoidance position. After that, when the pivot bracket 12 is rotated in the direction of engagement with the latch hook 21, the limiting element 14 will still remain in the avoidance position under the restriction of the locking element 13, and after the latch column 125 engages with the latch hook 21, the limiting element 14 can smoothly move from the unlocked position to the locked position, that is, during the entire unlocking process, the movement of the limiting element 14 does not require manual operation alone, which can effectively simplify the operating steps of the detachable coupling device, making the installation and disassembly of the lifting mechanism 4 and the pulley 1 simpler and faster, and helping to improve the lifting mechanism 4 and safety The locking element 13 is convenient for use in installing and disassembling the vehicle, and the lifting device 12 is convenient for use.

[0078] Of course, it is understandable that in other embodiments, the locking element 13 can also be rotatably connected to the pulley 1, and the corresponding first operating member 131 is a knob, and the second reset member 132 is a torsion spring. The first operating member 131 drives the locking element 13 to rotate in the interval area, thereby realizing switching between the locked position and the unlocked position. In addition, in order to prevent the locking element 13 from disengaging from the locked position due to the rotation of the pivot bracket 12, the locking element 13 has a long axis and a short axis. The shape of the locking element 13 can be elliptical or cam-shaped. When the locking element 13 is in the locked position, the stop portion 124 abuts against the two end portions of the long axis, and the force generated by the rotation of the pivot bracket 12 on the locking element 13 will point to the axis center of the locking element 13, so this force will not drive the locking element 13 to rotate. When the locking element 13 is in the locked position, the two ends of the long axis serve as the upper and lower ends of the locking element 13, and the two ends of the short axis are between the two stop parts 124, and there is a gap between the two ends of the short axis and the stop parts 124, thereby releasing the restriction on the pivot bracket 12, and the locking element 13 switches between the locked position and the unlocked position by rotation, and the locked position and the unlocked position are both in 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 suitable for a more compact installation space.

[0079] In order to reduce the shaking amplitude of the pivot bracket 12 in the locked state, the stop portion 124 described in this embodiment is close to the hinge of the pivot bracket 12 and the pulley 1, and the positions of the locking element 13 and the stop portion 124 correspond to each other. When the locking element 13 is in the locked position, the locking element 13 and the stop portion 124 can form an abutment fit, and the closer the limiting position of the locking element 13 on the pivot bracket 12 is to the hinge of the pivot bracket 12, the stronger the limiting force of the locking element 13 on the pivot bracket 12 is, which can reduce the shaking amplitude of the pivot bracket 12 after being restricted, and can reduce the noise generated after the pivot bracket 12 shakes, which helps to improve the user experience; in addition, the stop portion 124 and the locking element 13 are close to the hinge of the pivot bracket 12, which can provide sufficient installation space for the limiting element 14, and can also reduce the overall length of the pivot bracket 12, so that the assembly of the detachable coupling device is more compact, which helps to reduce the volume of the pulley 1.

[0080] like Figure 4As shown, the pulley 1 in this embodiment includes a shell 11, a fixed plate 111 is fixed in the shell 11, and the pivot bracket 12 includes a first lock plate 121 and a second lock plate 122 in sequence along the unlocking direction of the locking element 13. The first lock plate 121 and the second lock plate 122 are rotatably connected to both sides of the fixed plate 111 through a rotating shaft 123. The latch column 125 is fixed between the first lock plate 121 and the second lock plate 122 and is located at the lower ends of the first lock plate 121 and the second lock plate 122. The stopper 124 is located on the side of the first lock plate 121, and the rotating member 1221 is fixed to the second lock plate 122. The spacing area is formed between the two stoppers 124. An operating member 131 is installed on the outer side of the shell 11 near the first lock plate 121. When the first operating member 131 is pressed to drive the locking element 13 to slide, the locking element 13 slides from the spacing area toward the position of the second lock plate 122. When the latch hook 21 is locked with the pivot bracket 12, the latch hook 21 is also between the first lock plate 121 and the second lock plate 122, which can make the force on the pivot bracket 12 more balanced, help to reduce the shear force on the pivot bracket 12, reduce the possibility of deformation or breakage of the pivot bracket 12, help to extend the service life of the pivot bracket 12, and also improve the safety of the transfer machine.

[0081] Of course, it is understandable that in other embodiments, the first lock plate 121 and the second lock plate 122 may also be directly rotatably connected to the inner wall of the housing 11 of the pulley 1 through the rotating shaft 123 .

[0082] It should be noted that, in this embodiment, the rotating member 1221 and the second lock plate 122 are an integrated structure, and the rotating member 1221 and the tooth portion 1222 are also an integrated structure.

[0083] like Figure 3 As shown, the movable latch described in this embodiment includes a guide pin 126 connected to the pivot bracket 12, the end of the guide pin 126 extends out of the shell 11 of the pulley 1, and a trigger member 1261 is installed at the end of the guide pin 126 outside the shell 11. A sensor 1262 is provided on the lifting mechanism 4, and the sensor 1262 is electrically connected to the alarm. When the pivot bracket 12 is in the engaged position, the trigger member 1261 is completely within the sensing range of the sensor 1262, and the sensor 1262 releases the alarm at this time; when the pivot bracket 12 is in the disengaged position, the trigger member 1261 is completely out of the sensing range of the sensor 1262, and the sensor 1262 also releases the alarm; and when the pivot bracket 12 is between the engaged position and the disengaged position, the trigger member 1261 is not completely out of the sensing range of the sensor 1262, and a part of it is still within the sensing range of the sensor 1262, and the sensor 1262 triggers the alarm.

[0084] After the latch post 125 is stably engaged with the latch hook 21, the pivot bracket 12 is in the engaged position. At this time, the lifting mechanism 4 and the pulley 1 are in a stable connection state and are not easily separated from each other, so no alarm is required at this time; and when the latch post 125 and the latch hook 21 are unlocked, the pivot bracket 12 is in the disengaged position, and the unlocking of the latch post 125 and the latch hook 21 does not require an alarm. Since the pivot bracket 12 is elastically loaded by the first reset member 128, the pivot bracket 12 will automatically reset to the engaged position when no force is applied. However, when the latch post 125 and the latch hook 21 are not fully engaged, The latch hook 21 will abut against the latch column 125, thereby preventing the pivot bracket 12 from resetting to the engaged position. At this time, the pivot bracket 12 will stay between the engaged position and the disengaged position. In this state, the latch column 125 and the latch hook 21 are not reliably engaged. In order to prevent the user from mistakenly believing that the latch column 125 and the latch hook 21 are engaged, the sensor 1262 is required to trigger the alarm to remind the user that the latch column 125 and the latch hook 21 are not fully engaged and need to be reinstalled to ensure that the latch column 125 can maintain a reliable combination with the latch hook 21, thereby further improving the safety of the lifting system.

[0085] Of course, it is understandable that in other embodiments, the sensor 1262 may also be fixed on the pulley 1.

[0086] like Figure 15 and Figure 16 As shown, in this embodiment, each of the pivot brackets 12 is provided with two guide pins 126. The two guide pins 126 on the same pivot bracket 12 are respectively located on the extension lines of the two ends of the latch column 125, that is, the guide pin 126 and the latch column 125 are coaxially arranged, thereby ensuring that the movement paths of the latch column 125 and the guide pin 126 are the same, so that the position change of the guide pin 126 can accurately reflect the position change of the latch column 125, which helps to improve the position sensing of the pivot bracket 12 by the sensor 1262 More accurate and reliable; in addition, each pivot bracket 12 has at least A trigger member 1261 is installed on a guide pin 126, and the number of sensors 1262 corresponds to the number of trigger members 1261. Specifically, in this embodiment, two sensors 1262 are provided on the lifting mechanism 4, and the two sensors 1262 are respectively located on both sides of the vehicle, and the two sensors 1262 correspond to two pivot brackets 12 respectively. The trigger member 1261 is installed at the end of the guide pin 126 of the pivot bracket 12 corresponding to the sensor 1262, that is, a trigger member 1261 is installed on each pivot bracket 12, and the trigger member 1261 is also located on both sides of the pulley 1.

[0087] Of course, it is understandable that in other embodiments, the number of the trigger members 1261 and the sensor 1262 can be three or four.

[0088] like Figure 15and Figure 16 As shown, in this embodiment, the pivot brackets 12 are close to each other to drive the latch column 125 to disengage the latch hook 21, and the trigger member 1261 is raised when the pivot bracket 12 is rotated from the engaged position to the disengaged position, that is, in the height direction, the trigger member 1261 at the engaged position is lower than the trigger member 1261 at the disengaged position, and the sensor 1262 is tilted downward in the unlocking direction of the pivot bracket 12, that is, the highest end of the sensor 1262 corresponds to the trigger member 1261 at the engaged position, and the lowest end of the sensor 1262 corresponds to the trigger member 1261 at the disengaged position, and when the pivot bracket 12 is in the engaged position, the highest end of the sensor 1262 is directly in front of the trigger member 1261, so that the trigger member 1261 is completely within the sensing range of the sensor 1262, Figure 15 When the pivot bracket 12 is in the disengaged position, the lowest end of the sensor 1262 is lower than the trigger member 1261, so that the trigger member 1261 is completely out of the sensing range of the sensor 1262, reference Figure 16 When the pivot bracket 12 is between the engaged position and the disengaged position, the trigger member 1261 is only partially within the sensing range of the sensor 1262. At this time, the sensor 1262 triggers the alarm to alert the user that the latch column 125 and the latch hook 21 are not fully engaged.

[0089] like Figure 3 As shown, the trigger member 1261 in this embodiment is a magnet, and the sensor 1262 is a reed switch. The reed switch has two contacts. The spring piece in the reed switch swings between the two contacts under the action of the magnetic field. When the spring piece contacts one of the contacts, the alarm of the alarm is released. When the pivot bracket 12 is in the initial engagement position, the sensor 1262 is directly in front of the trigger member 1261, and the magnetic force on the spring piece is the largest. At this time, the spring piece contacts the contact close to the trigger member 1261 under the action of the magnetic force; when the pivot bracket 12 is in the disengaged position, the sensor 1262 is staggered with the trigger member 1261. At this time, the magnetic force on the spring piece is the smallest, and the spring piece contacts the contact of the trigger member 1261 under the action of its own elastic force; and when the pivot bracket 12 is between the engaged position and the disengaged position, the spring piece is maintained between the two contacts under the action of the magnetic force and its own elastic force. At this time, the spring piece does not contact the contact, and the alarm sounds an alarm.

[0090] The guide pin 126 is coaxially arranged with the latch column 125. In addition, the lifting mechanism 4 is provided with a pair of release sliders 22. The two release sliders 22 can be operated to slide in the direction of approaching each other to push the pivot bracket 12 to rotate. When the lifting mechanism 4 is connected to the pulley 1, the guide pin 126 is in the sliding path of the release slider 22. The user pushes the release slider 22, and the release slider 22 drives the pivot bracket 12 to rotate to the disengaged position through the guide pin 126, thereby unlocking the latch column 125 and the latch hook 21. After unlocking, the lifting mechanism 4 will automatically separate from the pulley 1 under the action of gravity. The release slider 22 is set on the lifting mechanism 4. During the unlocking process, the user needs to hold the lifting mechanism 4 when pushing the release slider 22. Therefore, after the lifting mechanism 4 is separated from the pulley 1, the user can still hold the lifting mechanism 4 to prevent the lifting mechanism 4 from falling and being damaged. At the same time, there is no need for additional protection of the lifting mechanism 4, which is convenient for users to disassemble with one hand.

[0091] like Figure 3 and Figure 14 As shown, in this embodiment, blocking blocks 413 are arranged in pairs on the lifting mechanism 4, and 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. The support of the release slider 22 by the lifting mechanism 4 can reduce the friction between the release slider 22 and the slide groove, making the sliding of the release slider 22 smoother and reducing the possibility of the release slider 22 getting stuck.

[0092] It should be noted that, in this embodiment, the first lock plate 121 and the second lock plate 122 are both provided with guide pins 126 extending out of the pulley 1 housing 11, that is, the guide pins 126 are exposed on both sides of the pulley 1, and the lifting mechanism 4 is slidably mounted with two release sliders 22, which are respectively used to push the two pivot brackets 12. When the two guide pins 126 approach each other, the two pivot brackets 12 are driven to rotate toward each other, so that the pivot brackets 12 can rotate to the unlocked position. The release slider 22 is provided with two guide surfaces 221 for pushing the guide pins 126. The two guide surfaces 221 The two guide pins 126 are respectively used to push the same pivot bracket 12. An avoidance groove 222 is provided between the two guide surfaces 221. During the sliding process of the release slider 22, the side of the pulley 1 will enter the avoidance groove 222 to avoid mutual interference between the release slider 22 and the pulley 1. In addition, the guide surface 221 is a curved surface. The guide surface 221 gradually bends from bottom to top toward the side away from the guide pin 126, that is, the distance between the two opposite guide surfaces 221 gradually increases from bottom to top. The distance between the tops of the two opposite guide surfaces 221 is D, and the two guide pins 126 are facing each other. The distance between the outer 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 outer sides of the two guide pins 126 facing away from each other, that is, D>d. When the release sliders 22 abut against the blocking block 413, the distance between the two release sliders 22 is the smallest. When the pivot bracket 12 is in the engaged position, the distance between the guide pins 126 of the two pivot brackets 12 is the largest. In this state, the distance between the tops of the two guide surfaces 221 is still greater than the distance between the two guide pins 126, which can ensure that the pulley 1 and the lift are in a stable state. During the engagement process of the lowering mechanism 4, the guide pin 126 can be located between the two release sliders 22. As the pulley 1 is gradually inserted into the slot 412, the guide pin 126 can push the two release sliders 22 away from each other, so that the release slider 22 can be reset to the end of the slide groove, so that the user can push the guide pin 126 again through the release slider 22. During the connection process of the pulley 1 and the lifting mechanism 4, the user does not need to manually reset the two release sliders 22, which can further reduce the difficulty of connecting the pulley 1 and the lifting mechanism 4, and help improve the installation efficiency of the pulley 1 and the lifting mechanism 4.

[0093] like Figures 10 to 13 As shown in FIG. 1 , 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 column 125 is in an engaged position and remains engaged with the latch hook 21, while the locking element 13 is in a locked position and simultaneously forms a restriction on the pivot bracket 12 and the limiting element 14. Figure 10As shown; 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, and the pivot bracket 12 can rotate freely between the engaged position and the disengaged position, and the limiting element 14 will automatically rotate to the blocking position under the action of the third reset member 143. At the same time, the first protrusion 141 and the second protrusion 142 will both rotate upward with the limiting element 14, wherein 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, and the first protrusion 141 will block the locking element 13 from moving to the locked position, thereby limiting 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 reset to the locked position. Thereafter, the user drags the pivot bracket 12 to rotate by releasing the slider 22, so that the latch column 125 disengages the latch hook 21, thereby unlocking the pulley 1 and the lifting mechanism 4, so as to achieve the disassembly of the lifting mechanism 4, Figure 11 As shown; during the rotation of the pivot bracket 12, the pivot bracket 12 pushes the limiting element 14 to return to the avoidance position through the second protrusion 142. At this time, the first protrusion 141 releases the restriction of the locking element 13, and the locking element 13 moves to the locked position under the action of the first restoring member 128. However, since the pivot bracket 12 has been rotated to the unlocked position, that is, the stop portion 124 of the pivot bracket 12 occupies the space of the locking element 13 in the locked position, the locking element 13 will abut against the surface of the stop portion 124 facing away from the pressing member, and the locking element 13 still cannot be restored to the initial position. At this time, the locking element 13 stays in the first position under the obstruction of the stop portion 124. At this time, the locking element 13 will abut against the first protrusion 141 to limit the rotation of the limiting element 14. Figure 12 and Figure 13 As shown; after the lifting mechanism 4 is completely removed, the pivot bracket 12 loses the thrust of releasing the slider 22 and automatically returns to the engaged position under the action of the first reset member 128, so that a complete locking position can be provided again in the spacing area. After the pivot bracket 12 rotates to the engaged position, the stop portion 124 separates from the locking element 13, and the locking element 13 automatically returns to the locked position under the action of the second reset member 132. The two stop portions 124 are abutted by the locking element 13 to limit the rotation of the pivot bracket 12, ensuring that the pivot bracket 12 will not be separated from the engaged position at will.

[0094] Regarding the installation process of the pulley 1 and the lifting mechanism 4, during use, the user also first presses the first operating member 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, and then pushes the entire lifting mechanism 4 upward to extend the latch hook 21 into the pulley 1. The top end 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 realizing the locking of the latch hook 21 and the latch column 125. The movement process of the locking element 13 and the limiting element 14 during the installation process is the same as the disassembly process; in addition, in order to ensure that the release slider 22 can be automatically reset, the top of the action part of the release slider 22 in this embodiment is also provided with a guide surface. When the latch hook 21 extends into the pulley 1, the guide pin 126 pushes the two release sliders 22 to automatically separate through the guide surface, thereby avoiding the release slider 22 interfering with the installation of the lifting mechanism 4 and the pulley 1.

[0095] Example 2:

[0096] like Figure 17 As shown, the main difference between this embodiment and embodiment 1 is that the transmission member described in this embodiment is a transmission belt 1223 that is interference fit with the rotating member 1221, and the transmission belt 1223 is wound around the two rotating members 1221 in an "eight" shape, and one of the rotating members 1221 rotates through the transmission belt 1223 to drive the other rotating member 1221 to rotate in the opposite direction. The transmission belt 1223 drives the two rotating members 1221 to rotate at the same time, which can effectively reduce the difficulty of installing and disassembling the transmission belt 1223 and the rotating member 1221, help reduce the difficulty of maintaining the transmission mechanism, and improve the installation and replacement efficiency of the transmission belt 1223.

[0097] Example 3:

[0098] like Figure 18 As shown, the main difference between this embodiment and embodiment 1 is that the transmission member described in this embodiment is a connecting rod assembly, which includes two fixed rods 1224 distributed radially along the rotating member 1221 and movable rods 1225 hinged to the two fixed rods 1224 at both ends. The two fixed rods 1224 are respectively fixed to the two rotating members 1221, one of the fixed rods 1224 is on the upper side of the rotating member 1221, and the other fixed rod 1224 is on the lower side of the rotating member 1221. The rotation of one of the rotating members 1221 drives the fixed rod 1224 to rotate, and the fixed rod 1224 drives the other fixed rod 1224 to rotate through the movable rod 1225, and the other rotating member 1221 rotates accordingly, thereby realizing synchronous and opposite rotation of the two rotating members 1221.

[0099] Example 4:

[0100] The main difference between this embodiment and the first embodiment is that in this embodiment, the rotation of one of the pivot brackets 12 drives the other pivot bracket 12 to rotate synchronously and in the same direction through the transmission mechanism. The two rotating parts 1221 in the transmission mechanism are gears, and the transmission parts are also gears, that is, the transmission parts are engaged with the two rotating parts 1221 at the same time. When one of the rotating parts 1221 rotates, it will drive the other rotating part 1221 to rotate synchronously and in the same direction through the transmission part.

[0101] Of course, it is understandable that in other embodiments, the transmission member can also be a transmission belt 1223 that is interference fit with the rotating member 1221. The transmission belt 1223 is mounted on the outer peripheral side of the two rotating members, that is, the two rotating members 1221 are simultaneously on the inner side of the transmission belt 1223, and one of the rotating members 1221 rotates through the transmission belt 1223 to drive the other rotating member 1221 to rotate in the same direction.

[0102] Of course, it is understandable that in other embodiments, the transmission member is a connecting rod assembly, which includes two fixed rods 1224 distributed radially along the rotating member 1221 and a movable rod 1225 hinged to the two fixed rods 1224 at both ends. The two fixed rods 1224 are respectively fixed to the two rotating members 1221, and the positions of the two fixed rods 1224 on the two rotating members 1221 remain the same. The rotation of one of the rotating members 1221 drives the fixed rod 1224 to rotate, and the fixed rod 1224 drives the other fixed rod 1224 to rotate through the movable rod 1225, and the other rotating member 1221 rotates accordingly, thereby realizing the synchronous and directional rotation of the two rotating members 1221.

[0103] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. A rail-type lifting system, characterized in that: It includes a track mechanism and a lifting mechanism, the track mechanism includes a track and a pulley moving along the track, the lifting mechanism is suspended on the pulley through a detachable coupling device, the detachable coupling device includes a movable latch and a latch hook, one of the latch hook and the movable latch is arranged in a pair on the lifting mechanism, and the other is arranged in a pair on the pulley, the movable latch includes a pivot bracket and a latch column connected to the pivot bracket, the two pivot brackets can be operably rotated to drive the latch column to engage or disengage the latch hook, a transmission mechanism is provided between the two pivot brackets, and the rotation of one pivot bracket drives the other pivot bracket to rotate synchronously through the transmission mechanism.

2. A rail-type lifting system according to claim 1, characterized in that: The transmission mechanism includes two rotating members arranged in pairs and a transmission member that connects the two rotating members in transmission. The two rotating members are respectively coaxially arranged with the two pivot brackets and are kept fixedly connected.

3. A rail-type lifting system according to claim 2, characterized in that: The transmission member is a tooth portion provided on the surface of the rotating member, and the two rotating members are kept in meshing with each other through the tooth portion to achieve synchronous and reverse rotation.

4. The rail-type lifting system according to claim 3, characterized in that: The teeth are distributed in a fan shape and are located on one side opposite to the two rotating parts.

5. The rail-type lifting system according to claim 2, characterized in that: The transmission member is a transmission belt that is interference-fitted with the rotating member, wherein one rotating member rotates through the transmission belt to drive the other rotating member to rotate in the opposite direction.

6. The rail-type lifting system according to claim 5, characterized in that: The transmission belt is wound around two rotating parts in an eight-shaped pattern.

7. The rail-type lifting system according to claim 2, characterized in that: The transmission member is a connecting rod assembly, wherein one rotating member rotates through the connecting rod assembly to drive the other rotating member to rotate in the opposite direction.

8. The rail-type lifting system according to claim 7, characterized in that: The connecting rod assembly includes two fixed rods distributed radially along the rotating part and a movable rod hinged to the two fixed rods at both ends. The two fixed rods are respectively fixed to the two rotating parts, one of the fixed rods is on the upper side of the rotating part, and the other fixed rod is on the lower side of the rotating part.

9. The rail-type lifting system according to claim 2, characterized in that: One of the rotating parts drives the other rotating part to rotate synchronously and in the same direction through the transmission part.

10. The rail-type lifting system according to claim 1, characterized in that: The pivot bracket has a stop portion, and a spacing area is formed between the stop portions of the two pivot brackets. The movable latch is elastically loaded by the first reset member to maintain the engagement tendency of the latch column and the latch hook. The detachable coupling device also includes a locking element, which can be operated to switch between a locked position and an unlocked position. When the latch column and the latch hook are engaged, the spacing area provides a locked position and allows the locking element to enter. The two stop portions are abutted by the locking element to limit the rotation of the pivot bracket. The locking element in the unlocked position releases the abutment against the stop portion.

11. The rail-type lifting system according to claim 9, 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 a locking position and an unlocking position by sliding. The locking element in the unlocking position is out of the spacing area.

12. The rail-type lifting system according to claim 10, characterized in that: The locking element is elastically loaded by the second restoring member to maintain a movement trend toward the locking position.

13. The rail-type lifting system according to claim 11, characterized in that: The locking element is fixedly connected to the first operating member. The pulley comprises a shell. The locking element is located in the shell. The second resetting member is limited between the first operating member and the shell.

14. The rail-type lifting system according to claim 10, characterized in that: The detachable coupling device further includes a limiting element. When the locking element is in the unlocked position, the limiting element enters into the movement path of the locking element to limit the movement of the locking element toward the locked position.

15. The rail-type lifting system according to claim 13, characterized in that: The limiting element includes a blocking position that limits the locking element from moving toward the locking position and an avoidance position that releases the restriction on the locking element. The limiting element is elastically loaded by a third reset member to maintain the movement trend toward the blocking position. The locking element in the locking position limits the limiting element to the avoidance position.

16. The rail-type lifting system according to claim 14, characterized in that: The limiting element is rotatably connected to the pulley, and a first protrusion is provided on the outer peripheral side 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 limit the movement of the locking element to the locking position. The locking element in the locking position abuts against the first protrusion to limit the rotation of the limiting element.

17. The rail-type lifting system according to claim 15, characterized in that: The locking element also includes a pre-locking position, which is between the unlocking position and the locking position. The pivot bracket rotates in the direction of disengaging from the latch hook, driving the limiting element to rotate toward 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 to limit the locking element to the pre-locking position, and the locking element in the pre-locking position limits the limiting element to the avoidance position.

18. The rail-type lifting system according to claim 16, characterized in that: The limiting block is provided with a second protrusion. In the blocking position, the second protrusion is at least partially located in the rotation path of the pivot bracket. The pivot bracket rotates in the direction of disengaging the latch hook to push the second protrusion to drive the limiting element to rotate toward the avoidance position.

19. The rail-type lifting system according to claim 14, characterized in that: The limiting element is fixedly connected to a second operating member, and the second operating member can be operated to drive the limiting element to move toward the avoidance position.

20. The rail-type lifting system according to claim 9, characterized in that: The pivot bracket includes a first lock plate and a second lock plate, the latch column is fixed between the first lock plate and the second lock plate, the stop portion is located on the opposite side of the two first lock plates, and the two second lock plates are connected through a transmission mechanism.

21. The rail-type lifting system according to claim 1, characterized in that: The pulley or lifting mechanism is provided with a sensor for sensing the position status of the pivot bracket, the sensor is electrically connected to the alarm, the pivot bracket includes an engagement position for engaging the latch column with the latch hook and a disengagement position for disengaging the latch column from the latch hook, the pivot bracket is elastically loaded by the first reset member and maintains a tendency to rotate toward the engagement position, the sensor releases the alarm when the pivot bracket is in the engagement position and the disengagement position, and the sensor triggers the alarm when the pivot bracket is between the engagement position and the disengagement position.

22. The rail-type lifting system according to claim 20, characterized in that: A trigger member is provided on the pivoting bracket. When the pivoting bracket is in the engaged position, the trigger member is completely within the sensing range of the sensor. When the pivoting bracket is in the disengaged position, the trigger member is completely out of the sensing range of the sensor. When the pivoting bracket is between the engaged position and the disengaged position, the trigger member is partially within the sensing range of the sensor.

23. The rail-type lifting system according to claim 21, characterized in that: The sensor is arranged on the lifting mechanism, the movable latch comprises a guide pin connected to the pivot bracket, the trigger is installed on the end of the guide pin, and the guide pin is coaxially arranged with the latch column.

24. The rail-type lifting system according to claim 22, characterized in that: Each pivot bracket is provided with two guide pins, which are respectively located on the extension lines of the two ends of the latch column. A trigger member is installed on at least one guide pin in each pivot bracket, and the number of sensors corresponds to the number of trigger members.

25. The rail-type lifting system according to claim 22, characterized in that: The two pivot brackets approach each other to drive the latch column to disengage the latch hook, and the sensor is tilted downward in the unlocking direction of the pivot bracket. When the pivot bracket is in the engaged position, the highest end of the sensor is directly in front of the trigger member.

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