A lift anti-loose mechanism

Abstract

The utility model relates to a kind of anti-loosening mechanism of lifter, including glass lifter assembly, the glass lifter assembly includes transmission rope, the elastic rope is equipped with anti-loosening mechanism, the anti-loosening mechanism includes shell and the first tight spring being set in shell, the transmission rope is set in shell, the shell is equipped with rotating member, the first tight spring and transmission rope are placed in rotating member to promote rotating member can drive the rotation of first tight spring and transmission rope, the rotating member is equipped with second tight spring, by the setting of second tight spring, when the relaxation length of steel wire rope exceeds the effective ejection length of clearance spring, under the action of second tight spring, spiral duct will move to one side, when rotating to certain angle, steel wire rope keeps tight, promote transmission rope to continue to keep tight state, prolong the service life of product.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and specifically to a lifting device anti-loosening mechanism. Background Technology

[0002] The cable tensioning structure of a power window regulator is a crucial component ensuring the stable operation of automotive windows. It typically consists of a tensioning device, a steel cable, and guide components. The tensioning device generally includes a spring or similar elastic element, its function being to continuously provide tension to the steel cable, preventing it from slackening during use. When the window is raised or lowered, the steel cable moves under the guidance of the guide components. The tensioning structure automatically adjusts the tension according to the cable's extension and contraction. If the steel cable shows signs of slackening during the window's ascent or descent, the spring within the tensioning structure will stretch or contract, maintaining the steel cable at an appropriate tension level. This ensures smooth and stable window operation, preventing problems such as jamming, abnormal noises, or even malfunctions caused by a loose steel cable.

[0003] Publication number CN214532489U discloses a centrally located steel cable pretensioning structure, including a window regulator support assembly. The support assembly includes a guide rail and a transmission rope, which are interconnected by elastic elements. When the transmission rope is in motion, the elastic elements stretch or contract, and the guide rail has an arc-shaped cross-section along its length. The elastic elements prevent the following situation: when the drive motor suddenly reverses, the previously loose transmission rope quickly becomes taut. Due to the rapid change in state, this transmission rope generates noise, and the guide wheel and rope pulley connected to the rotating transmission rope may suffer mechanical damage. Therefore, the elastic elements not only prevent noise generation but also improve the stability of the window regulator operation. Meanwhile, the arc-shaped structure of the guide rail makes the movement trajectory of the slider on the guide rail arc-shaped, which can adapt to the rising or falling movement of curved glass, making the curved glass more stable during the rising or falling process. This technology has no wear in the entire mechanism. When the motor stalls, the gap at the slack end of the wire rope is small, which can be eliminated by the conventional gap spring to prevent the wire rope from coming off the guide wheel. However, after the glass lifter has been used for a long time, the various rotating and friction parts will wear. After the motor stalls, the length of the slack end of the wire rope will increase with the increase of the wear of the parts. When the slack length of the wire rope exceeds the effective ejection length of the gap spring, the wire rope may come off the guide wheel, causing the lifter to stop working and end its service life. Therefore, there is still some room for improvement in this technology. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a lifting device anti-loosening mechanism to address the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting device anti-loosening mechanism, comprising a glass lifting device assembly, the glass lifting device assembly including a transmission rope, the transmission rope being provided with an anti-loosening mechanism, the anti-loosening mechanism including a housing and a first tension spring disposed within the housing, the transmission rope passing through the housing, characterized in that: a rotating component is provided within the housing, the first tension spring and the transmission rope are placed within the rotating component to enable the rotating component to drive the first tension spring and the transmission rope to rotate, and a second tension spring is sleeved on the rotating component.

[0006] Using the above technical solution, when the slack length of the wire rope does not exceed the effective ejection length of the gap spring, the transmission rope and rotating parts remain taut under the action of the first tension spring, and the rotating parts and housing remain taut under the action of the second tension spring. When the slack length of the wire rope exceeds the effective ejection length of the gap spring, the spiral guide will move to one side under the action of the second tension spring. When it rotates to a certain angle, the wire rope remains taut, causing the transmission rope to continue to remain taut, thus extending the service life of the product.

[0007] The aforementioned anti-loosening mechanism for a lifting device can be further configured such that: a snap-fit ​​structure is provided between the housing and the rotating component to cause the rotating component to rotate in one direction and snap-fit ​​with the housing.

[0008] The above technical solution uses a snap-fit ​​structure between the housing and the rotating component, which causes the rotating component to rotate only in one direction. At the same time, the snap-fit ​​between the rotating component and the housing ensures that the rotating component and the housing remain taut under the action of the second tension spring.

[0009] The aforementioned lifting device anti-loosening mechanism can be further configured such that: the locking structure includes a locking claw disposed at the end of the rotating component, and the outer periphery of the housing is provided with a plurality of locking grooves, wherein the locking claw engages with the locking grooves.

[0010] Using the above technical solution, the rotating part is provided with several claws at its end, and the outer periphery of the housing is provided with several slots that engage with the claws. When the second tension spring effectively extends its length in one of the slots, the rotating part continues to rotate under the action of the second tension spring, and the claws engage with the other slots, causing the rotating part to remain in a taut state with the housing.

[0011] The aforementioned lifting device anti-loosening mechanism can be further configured such that: the rotating component includes a helical rotating end and a fixed end for mounting the first tension spring and the second tension spring, and the housing is provided with a rotating thread for rotatably connecting the helical rotating end.

[0012] Using the above technical solution, the rotating component includes a spiral rotating end and a fixed end. During the glass lifting process, the rotation of the rotating component allows the first and second tension springs to precisely adjust the tension of the steel rope according to actual needs, so that the steel rope always maintains a suitable tension.

[0013] The aforementioned anti-loosening mechanism for a lifting device can be further configured as follows: the fixed end has an installation cavity for installing a first tension spring, the installation cavity has a sleeve, the first tension spring is sleeved on the sleeve, the outer periphery of the fixed end has a sleeve groove for installing a second tension spring, the end of the sleeve groove has an abutment ring, one end of the second tension spring abuts against the sleeve and the other end abuts against the abutment ring, and a ratchet is located at the end of the sleeve groove away from the spiral rotation end.

[0014] By adopting the above technical solution, a mounting cavity for installing the first tension spring is provided in the fixed end, and a sleeve is provided in the mounting cavity so that the first tension spring is sleeved on the sleeve. The sleeve can effectively prevent the first tension spring from shifting or twisting during operation. The sleeve groove on the outer periphery of the fixed end is for the second tension spring to be sleeved. The abutment ring at the end of the sleeve groove makes one end of the second tension spring abut against the sleeve and the other end abut against the abutment ring, preventing the second tension spring from shifting during operation. The ratchet is set at the end of the sleeve groove away from the spiral rotation end to realize the unidirectional rotation of the rotating part, ensuring the stability and reliability of the window regulator during long-term use.

[0015] The aforementioned lifting device anti-loosening mechanism can be further configured such that: the claw includes an elastic end, and the end of the elastic end is provided with a locking boss that engages with the locking groove.

[0016] Using the above technical solution, when the rotating component drives the chuck to rotate, the elastic end causes the chuck to have a certain elastic deformation capacity, and the locking boss can be locked into the locking groove to limit the rotation of the component.

[0017] The aforementioned anti-loosening mechanism for a lifter can be further configured as follows: the glass lifter assembly includes a guide rail connected to a transmission rope, the guide rail has mounting brackets at both ends for mounting guide wheels, the transmission rope has a cable sheave housing at the other end, a drive motor is provided on one side of the cable sheave housing, and the housing can be detachably installed on any side or both sides of the cable sheave housing.

[0018] Using the above technical solution, mounting brackets for installing guide wheels are set at both ends of the guide rail. The guide wheels can guide the transmission rope to move along a predetermined trajectory, reducing friction between the transmission rope and other components. The other end of the transmission rope is connected to the cable sheave housing. A drive motor is equipped on one side of the cable sheave housing. The drive motor can drive the cable sheave housing to rotate, thereby driving the transmission rope to realize the lifting and lowering action of the glass.

[0019] The aforementioned anti-loosening mechanism for a lifting device can be further configured as follows: a plug-in block is provided at one end of the housing connected to the cable wheel housing; the cable wheel housing is provided with a slot for the plug-in block to be inserted; a limiting block is provided on one side of the plug-in block along the extension direction of the plug-in block; and a limiting groove is provided on the side of the cable wheel housing located in the slot to engage with the limiting block.

[0020] By adopting the above technical solution, a plug-in block is set at one end of the connection between the housing and the cable wheel housing, and a corresponding slot is set on the cable wheel housing for plugging in. The cable wheel housing is provided with a limiting groove on one side of the slot to engage with it. The engagement between the limiting block and the limiting groove enhances the stability and reliability of the connection.

[0021] The beneficial effects of this utility model are as follows: By setting the second tension spring, when the slack length of the wire rope exceeds the effective ejection length of the gap spring, the spiral guide will move to one side under the action of the second tension spring. When it rotates to a certain angle, the wire rope remains taut, causing the transmission rope to continue to remain taut, thus extending the service life of the product. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the anti-loosening mechanism connection of this utility model; Figure 3 This is a cross-sectional view of the anti-loosening mechanism of this utility model; Figure 4 This is a structural diagram of the rotating component of this utility model; Label annotations: 1-Window regulator assembly, 2-Drive rope, 3-Anti-loosening mechanism, 4-Housing, 5-First tension spring, 6-Rotating component, 7-Claw, 8-Snap-fit ​​groove, 9-Spiral rotating end, 10-Fixed end, 11-Rotating thread, 12-Mounting cavity, 13-Sleeve fitting, 14-Abutting ring, 15-Elastic end, 16-Snap-fit ​​boss, 17-Guide rail, 18-Guide wheel, 19-Mounting bracket, 20-Rope wheel housing, 21-Drive motor, 22-Plug-in block, 23-Slot, 24-Limit block, 25-Limit groove, 26-Sleeve groove, 27-Second tension spring. Detailed Implementation

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0024] like Figure 1-4The present invention provides the following technical solution: a lifting device anti-loosening mechanism, including a glass lifting device assembly 1, a glass lifting device assembly 1 including a transmission rope 2, the transmission rope being provided with an anti-loosening mechanism 3, the anti-loosening mechanism 3 including a housing 4 and a first tension spring 5 disposed in the housing 4, the transmission rope 2 passing through the housing 4, a rotating component 6 disposed in the housing 4, the first tension spring 5 and the transmission rope 2 being placed in the rotating component 6 so that the rotating component 6 can drive the first tension spring 5 and the transmission rope 2 to be aligned, the rotating component 6 being sleeved with a second tension spring 27, when the slack length of the wire rope does not exceed the effective ejection length of the gap spring, under the action of the first tension spring 5, the transmission rope 2 and the rotating component always remain in a taut state, and under the action of the second tension spring 27, the rotating component 6 and the housing 4 always remain taut;When the slack length of the wire rope exceeds the effective ejection length of the gap spring, the spiral guide will move to one side under the action of the second tension spring 27. When it rotates to a certain angle, the wire rope remains taut, causing the transmission rope 2 to continue to remain taut, thus extending the product's service life. A locking structure is provided between the housing 4 and the rotating part 6 to cause the rotating part 6 to rotate in one direction and engage with the housing 4. This locking structure ensures that the rotating part 6 can only rotate in one direction, while simultaneously engaging with the housing 4, guaranteeing that the rotating part 6 and the housing 4 remain taut under the action of the second tension spring 27. The locking structure includes a claw located at the end of the rotating part 6, and several locking grooves 8 are provided on the outer periphery of the housing 4. The claw engages with the locking grooves 8. The moving part 6 has several claws at its end, and the outer periphery of the housing 4 has several slots for engaging with the claws. When the second tension spring 27 effectively extends its length within one of the slots 8, the rotating part continues to move laterally under the action of the second tension spring 27, and the claws engage with the other slots 8, keeping the rotating part and the housing 4 in a taut state. The rotating part includes a helical rotating end 9 and a fixed end 10 for mounting the first tension spring 5 and the second tension spring 27. The housing 4 has a rotating thread 11 for rotating the helical rotating end 9. During the glass lifting process, the rotation of the rotating part allows the first and second tension springs 27 to precisely adjust the tension of the steel cable according to actual needs, so that... The steel rope maintains a suitable tension at all times. The fixed end 10 has a mounting cavity 12 for installing the first tension spring 5. A sleeve 13 is provided within the mounting cavity 12, and the first tension spring 5 is sleeved on the sleeve 13. The fixed end 10 has a sleeve groove 26 for installing the second tension spring 27. An abutment ring 14 is provided at the end of the sleeve groove 26. One end of the second tension spring 27 abuts against the sleeve, and the other end abuts against the abutment ring 14. A ratchet is located at the end of the sleeve groove 26 away from the spiral rotation end 9. The mounting cavity 12 for installing the first tension spring 5 is provided within the fixed end 10, and the sleeve 13 is provided within the mounting cavity 12, allowing the first tension spring 5 to be sleeved on the sleeve 13. The sleeve 13 effectively prevents the first tension spring 5 from shifting during operation. The fixed end 10 has a sleeve groove 26 on its outer periphery for the second tension spring 27 to be sleeved. The abutment ring 14 at the end of the sleeve groove 26 allows one end of the second tension spring 27 to abut against the sleeve 13 and the other end to abut against the abutment ring 14, preventing the second tension spring 27 from shifting during operation. The ratchet is positioned at the end of the sleeve groove 26 away from the spiral rotating end 9, enabling unidirectional rotation of the rotating part 6 and ensuring the stability and reliability of the glass lifter during long-term use. The pawl includes an elastic end 15, and the end of the elastic end 15 is provided with a locking boss 16 that engages with the locking groove 8. When the rotating part 6 drives the pawl to rotate, the elastic end 15 causes the pawl to have a certain elastic deformation capacity, and the locking boss 16 can engage with the locking groove 8 to limit the rotation of the rotating part 6.

[0025] like Figure 1-4 The present invention provides the following technical solution: a lifting device anti-loosening mechanism. The glass lifting device assembly 1 includes a guide rail 17 connected to a transmission rope 2. Mounting brackets 19 for mounting guide wheels 18 are provided at both ends of the guide rail 17. A cable sheave housing 20 is provided at the other end of the transmission rope 2. A drive motor 21 is provided on one side of the cable sheave housing. The housing 4 is detachably mounted to the cable sheave housing 20 at the rising end of the car window. Mounting brackets 19 for mounting guide wheels 18 are provided at both ends of the guide rail 17. The guide wheels 18 can guide the transmission rope 2 to move along a predetermined trajectory, reducing transmission loss. Friction between the moving rope 2 and other components causes the other end of the transmission rope 2 to connect to the sheave housing 20. The sheave housing 20 is equipped with a drive motor 21 on one side. The drive motor 21 can drive the sheave housing 20 to rotate, thereby driving the transmission rope 2 to realize the lifting and lowering action of the glass. The housing 4 is provided with a plug-in block 22 at one end connected to the sheave housing 20. The sheave housing 20 is provided with a slot 23 for the plug-in block 22 to be inserted. A limiting block 24 is provided on one side of the plug-in block along the extension direction of the plug-in block 22. The sheave housing is provided with a limiting groove 25 on the side of the slot 23 that engages with the limiting block 24.

[0026] The beneficial effects of this utility model are as follows: By setting the second tension spring 27, when the slack length of the wire rope exceeds the effective ejection length of the gap spring, the spiral guide will move to one side under the action of the second tension spring 27. When it rotates to a certain angle, the wire rope remains taut, causing the transmission rope 2 to continue to remain taut, thus extending the service life of the product.

Claims

1. A lifting device anti-loosening mechanism, comprising a glass lifting device assembly, the glass lifting device assembly including a transmission rope, the transmission rope being provided with an anti-loosening mechanism, the anti-loosening mechanism including a housing and a first tension spring disposed within the housing, the transmission rope passing through the housing, characterized in that: The housing is equipped with a rotating component. The first tension spring and the transmission rope are placed inside the rotating component, which enables the rotating component to drive the first tension spring and the transmission rope to rotate. The rotating component is fitted with a second tension spring.

2. The lifting device anti-loosening mechanism according to claim 1, characterized in that: The housing and the rotating component are provided with a snap-fit ​​structure that causes the rotating component to rotate in one direction and snaps into the housing.

3. The lifting device anti-loosening mechanism according to claim 2, characterized in that: The snap-fit ​​structure includes a snap claw disposed at the end of the rotating component, and the outer periphery of the housing is provided with a plurality of snap-fit ​​grooves, wherein the snap claw engages with the snap-fit ​​grooves.

4. The lifting device anti-loosening mechanism according to claim 2, characterized in that: The rotating component includes a helical rotating end and a fixed end for mounting the first tension spring and the second tension spring. The housing is provided with a rotating thread for rotatably connecting the helical rotating end.

5. The lifting device anti-loosening mechanism according to claim 4, characterized in that: The fixed end has a mounting cavity for mounting the first tension spring. A sleeve is provided in the mounting cavity, and the first tension spring is sleeved on the sleeve. The outer periphery of the fixed end has a sleeve groove for mounting the second tension spring. An abutment ring is provided at the end of the sleeve groove. One end of the second tension spring abuts against the sleeve and the other end abuts against the abutment ring. A ratchet is provided at the end of the sleeve groove away from the spiral rotation end.

6. The lifting device anti-loosening mechanism according to claim 3, characterized in that: The claw includes an elastic end, and the end of the elastic end is provided with a snap-fit ​​protrusion that snaps into the snap-fit ​​groove.

7. The lifting device anti-loosening mechanism according to claim 1, characterized in that: The glass lifter assembly includes a guide rail connected to a drive rope. The guide rail has mounting brackets at both ends for mounting guide wheels. The other end of the drive rope has a cable sheave housing. A drive motor is located on one side of the cable sheave housing. The housing can be detachably installed on any side or both sides of the cable sheave housing.

8. The lifting device anti-loosening mechanism according to claim 7, characterized in that: The housing is connected to the cable wheel housing at one end with a plug-in block. The cable wheel housing is provided with a slot for the plug-in block to be inserted. A limiting block is provided on one side of the plug-in block along the extension direction of the plug-in block. The cable wheel housing is provided with a limiting groove on the side of the slot that engages with the limiting block.

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