Manual clutch door opener

Abstract

The invention relates to a manual clutch door opener, and belongs to the field of door body driving equipment, the manual clutch door opener comprises a machine body, a movable part, a screw rod, a worm gear, a worm, a driving piece, a connecting part, a clutch mechanism and an abutting mechanism, the movable part is slidably inserted in the machine body and used for being connected to a driving structure of a door body, and the screw rod is rotatably arranged on the machine body and is in threaded connection with the movable part; the worm gear rotationally sleeves the screw rod, the worm is rotationally arranged on the machine shell and meshed with the worm gear, the driving part is arranged on the machine body and used for driving the worm to rotate, the connecting part is arranged on the screw rod in a sliding mode and used for being partially inserted into the worm gear, and the clutch mechanism is arranged on the machine body and used for driving the connecting part to slide. The abutting mechanism is arranged on the clutch mechanism and used for positioning the connecting part on the worm gear. The door opener has the effects that movement of the connecting part relative to the worm gear and the lead screw is reduced, then abrasion of the connecting part, the worm gear and the lead screw is reduced, and the service life of the door opener is effectively prolonged.

Description

Technical Field

[0001] This application relates to the field of door drive equipment, and in particular to a manual clutch door opener. Background Technology

[0002] As the core equipment for opening and closing doors, door openers are widely used in various places. They drive the door to open or close by receiving control commands (such as remote control, buttons, sensor signals, etc.), which greatly improves the convenience of door use.

[0003] To ensure the stability of the gate opener's operation and the reliability of the gate's positioning after opening and closing, existing gate openers typically employ a worm gear mechanism for transmission. Through the self-locking mechanism of the worm gear mechanism, it effectively prevents the gate from moving unexpectedly due to external forces (such as wind or thrust) when the gate opener is stopped, achieving self-locking and significantly improving the safety and stability of the equipment. However, the worm gear mechanism also has significant technical drawbacks. In the event of a power outage, motor failure, or other emergencies, the self-locking function of the worm gear cannot be released, leaving the gate locked. Users cannot manually drive the gate to open or close, severely impacting the convenience and safety of gate use.

[0004] Currently, to address the issue of being unable to manually open and close the gate during power outages or motor failures, most solutions involve adding a manual clutch device to the worm gear transmission system. This device connects the worm gear to the moving end of the gate opener via connecting pins, ball bearings, or other connectors. Driving the connector out of the worm gear disengages the clutch, allowing the gate opener to be manually operated without being affected by the worm gear's self-locking mechanism. However, when connecting the gate opener's moving end to the worm gear using connectors, a certain gap is typically present between the connector and the worm gear to ensure a smooth connection. This gap causes significant wear between the connector and the worm gear when the worm gear rotates and drives the gate opener's moving end, thus affecting the gate opener's lifespan. Summary of the Invention

[0005] In order to improve the service life of the gate opener, this application provides a manual clutch gate opener.

[0006] The manual clutch door opener provided in this application adopts the following technical solution: A manual clutch door opener includes a body, a movable part, a lead screw, a worm gear, a worm, a drive component, a connecting part, a clutch mechanism, and a clamping mechanism. The movable part is slidably inserted into the body and used to connect to the drive structure of the door. The lead screw is rotatably mounted on the body and threadedly connected to the movable part. The worm gear is rotatably sleeved on the lead screw. The worm is rotatably mounted on the housing and meshes with the worm gear. The drive component is mounted on the body and used to drive the worm to rotate. The connecting part is slidably mounted on the lead screw and used to partially insert into the worm gear. The clutch mechanism is mounted on the body and used to drive the connecting part to slide. The clamping mechanism is mounted on the clutch mechanism and used to position the connecting part on the worm gear. The clamping mechanism includes a lifting component and a covering component. The lifting component is mounted on the clutch mechanism and used to clamp the connecting part against the worm gear. The covering component is mounted on the worm gear and used to cover the connecting part.

[0007] By adopting the above technical solution, the movable part is connected to the drive structure of the door body. The clutch mechanism drives the connecting part to slide onto the worm gear, connecting the lead screw and the worm gear. The lifting component drives the connecting part to press against the worm gear, and the covering component tightens the end of the connecting part located on the worm gear, reducing the gap between the connecting part and the worm gear. This allows the connecting part to stably connect the lead screw and the worm gear. The subsequent drive component drives the worm to rotate. When the worm drives the worm gear to rotate, the worm gear drives the lead screw to rotate through the connecting part. The lead screw drives the movable part to move the drive structure of the door body, thus controlling the opening and closing of the door. During the rotation of the worm gear, the pressing action of the lifting component and the tightening action of the covering component effectively reduce the movement of the connecting part relative to the worm gear and the lead screw, thereby reducing the wear of the connecting part, the worm gear, and the lead screw, and effectively improving the service life of the door opener.

[0008] Optionally, the clutch mechanism includes a clutch lever, a control lever, a lever, an elastic element, and a locking assembly. The lead screw has a cavity and a through hole for communicating with a groove on the worm gear into which a connecting part is inserted. The clutch lever slidably passes through the cavity and has a receiving groove for accommodating the connecting part. The clutch lever also has a guide surface for guiding the connecting part from the receiving groove to the groove inserted into the worm gear. The control lever is rotatably mounted on the machine body. The lever is eccentrically mounted on the control lever and abuts against the clutch lever. The elastic element is mounted on the lead screw and drives the clutch lever to move towards the lever. The locking assembly is mounted on the control lever and positions the control lever.

[0009] By adopting the above technical solution, the user turns the control lever, which drives the eccentric lever to move away from or towards the clutch lever. The elastic element drives the clutch lever to always move towards the lever and abut against it. When the clutch lever moves to the point where the opening of the receiving groove is directly opposite the connecting part, the locking component positions the control lever, releasing the abutment of the lifting component against the connecting part. The connecting part can then enter the cavity through the through hole and fall into the receiving groove, thus easily disengaging the transmission connection between the lead screw and the worm gear. At this point, the user can manually open and close the door. When the guide surface on the clutch lever moves towards the connecting part, the guide surface pushes the connecting part out of the receiving groove. After passing through the through hole, the connecting part is guided to the groove inserted into the worm gear, realizing the transmission connection between the lead screw and the worm gear.

[0010] Optionally, the locking assembly includes a lock cover and a locking block. The lock cover is slidably mounted on the control lever, and the locking block is mounted on the lock cover. The body has a locking groove for the locking block to be inserted when the control lever is rotated to the position where the connecting part is inserted into the worm gear. The body also has a locking groove when the control lever is rotated to the position where the connecting part enters the receiving groove.

[0011] By adopting the above technical solution, the user can turn the lock cover, which will cause the control rod to rotate. When the lock cover rotates the control rod so that the connecting part is inserted into the worm gear, or when the lock cover rotates the control rod so that the connecting part enters the receiving groove, pressing the lock cover will cause the locking block to be inserted into the corresponding locking groove, thereby positioning the lock cover and the control rod, thus improving the stability of the control rod.

[0012] Optionally, the connecting part is a ball bearing, and the groove on the worm gear into which the connecting part is inserted is arc-shaped.

[0013] By adopting the above technical solution and using a ball bearing as the connecting part, even when the opening of the receiving groove is directly opposite the connecting part, the connecting part is not above the receiving groove. At this time, the user can still open and close the door, so that the moving part drives the lead screw to rotate, the lead screw drives the connecting part to move, and the side wall of the arc-shaped groove on the worm wheel squeezes the connecting part, so that the connecting part can also be squeezed into the receiving groove, thus successfully unlocking the lead screw and the worm wheel.

[0014] Optionally, the elastic element is a telescopic spring, which is located at the end of the lead screw away from the lever. The telescopic spring is connected to the clutch lever, and the distance between the guide surface and the lever is greater than the distance between the receiving groove and the lever.

[0015] By adopting the above technical solution, when the control lever is rotated to move the lever closer to the clutch lever, the lever drives the clutch lever to move away from the lever. The telescopic spring is compressed, and the opening of the receiving groove is aligned with the connecting part. After the control lever is released, the telescopic spring extends and drives the clutch lever to move closer to the lever. The clutch lever presses against the lever, causing the lever to move away from the clutch lever. The guide surface then approaches the connecting part, automatically pushing the connecting part from the receiving groove towards the worm gear. This automatically resets the connecting part by inserting it into the worm gear. This allows the user to only need to turn the control lever when disconnecting the transmission connection between the lead screw and the worm gear, reducing the possibility of accidental disconnection of the lead screw and worm gear.

[0016] Optionally, the lifting assembly includes a top block and an ejector. The top block is slidably disposed on the clutch lever in the direction of the connecting part, and the ejector is disposed on the clutch lever and is used to drive the top block to move toward the connecting part when the clutch lever is driven to insert the connecting part onto the worm gear.

[0017] By adopting the above technical solution, when the clutch lever drives the connecting part to be inserted into the worm gear, the pusher drives the top block to move toward the connecting part, and the top block can press against the connecting part, thereby pressing the connecting part against the worm gear and improving the stability of the connecting part being inserted into the worm gear.

[0018] Optionally, the ejector includes a wedge, a first rack, a second rack, a gear, and a connecting rod. The wedge is slidably mounted on the clutch lever, and the cross-sectional dimension of the wedge gradually decreases from near the lever to far away from the lever. The first rack is slidably mounted on the clutch lever along the sliding direction of the wedge and is connected to the wedge. The second rack is slidably mounted on the clutch lever. The gear is rotatably mounted on the clutch lever between the first rack and the second rack, and the gear meshes with both the first rack and the second rack. The connecting rod is hinged to the lever and is hinged to the second rack.

[0019] By adopting the above technical solution, when the clutch lever approaches the lever so that the connecting part is inserted into the worm gear, the clutch lever drives the lever to move away from the lead screw. The lever pulls the connecting rod, the connecting rod pulls the first rack to slide, the first rack drives the gear to rotate, the gear drives the second rack to slide, and the second rack pulls the wedge to move towards the connecting part. The side wall of the wedge, which has a larger cross-sectional size, squeezes the connecting part, thus conveniently pressing the connecting part against the worm gear.

[0020] Optionally, the covering assembly includes a movable ring, clamps, and a control element. The movable ring is slidably mounted on the worm gear. Multiple clamps are hinged together at circumferential intervals on the movable ring. The control element is mounted on the worm gear and is used to drive the multiple clamps to move closer to or further away from each other at one end near the connecting part.

[0021] By adopting the above technical solution, after the connecting part is inserted into the worm gear, the control component drives the ends of multiple clamping plates near the connecting part to move closer to each other, so that the multiple clamping plates can be tightly wrapped around the connecting part, thereby improving the stability of the connecting part on the worm gear.

[0022] Optionally, the control component includes a tapered sleeve and a reset component. The tapered sleeve is disposed on the worm gear and is located between multiple clamping plates. The outer diameter of the tapered sleeve gradually increases from near the connecting part to away from the connecting part. The reset component is disposed on the worm gear and is used to drive the moving ring toward the connecting part.

[0023] By adopting the above technical solution, when the connecting part moves towards the direction of the worm gear, it first abuts against the moving ring, and then drives the moving ring to move multiple clamping plates towards the direction of the conical sleeve. The outer wall of the conical sleeve, which gradually increases from the direction of the connecting part to the direction of the distance from the connecting part, squeezes the ends of the multiple clamping plates away from the connecting part, so that the ends of the multiple clamping plates away from the connecting part move away from each other, and the ends of the multiple clamping plates near the connecting part move closer to each other. The multiple clamping plates can then be clamped onto the connecting part, conveniently positioning the connecting part on the worm gear.

[0024] Optionally, the machine body is provided with a path sensor for detecting the movement range of the moving part, and the machine body is provided with a controller, which is electrically connected to both the path sensor and the drive component.

[0025] By adopting the above technical solution, when the moving part drives the door to open and close, the path sensor detects the movement range of the moving part, and then detects the opening and closing range of the door. Then, it sends an electrical signal to the controller, and the controller sends an electrical signal to the drive component to control the drive component. The drive component can then control the opening and closing range of the door, which facilitates the control of the opening and closing range of the door.

[0026] In summary, this application includes at least one of the following beneficial technical effects: Reducing the movement of the connecting part relative to the worm gear and lead screw reduces wear on the connecting part, worm gear and lead screw, effectively extending the service life of the gate opener; Pressing the lock cover will cause the locking block to insert into the corresponding locking groove, positioning the lock cover and thus the control lever, improving the stability of the control lever. The controller then sends an electrical signal to the drive unit to control the drive unit, which in turn controls the opening and closing range of the door, making it easier to control the opening and closing range of the door. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the manual clutch door opener according to an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view of the body according to an embodiment of this application.

[0029] Figure 3 This is a cross-sectional structural diagram of an embodiment of this application.

[0030] Figure 4 This is a structural schematic diagram of the organism after cross-section from another perspective of an embodiment of this application.

[0031] Figure 5 This is a cross-sectional structural diagram of the clutch lever position according to an embodiment of this application.

[0032] Figure 6 yes Figure 5 A magnified view of part A in the diagram.

[0033] Reference numerals: 1. Body; 2. Moving part; 3. Lead screw; 31. Cavity; 32. Through hole; 4. Worm gear; 5. Worm; 6. Driving component; 7. Connecting part; 8. Clutch mechanism; 81. Clutch lever; 811. Receiving groove; 812. Guide surface; 82. Control lever; 83. Toggle lever; 84. Elastic component; 85. Locking assembly; 851. Lock cover; 852. Locking block; 9. Pressing mechanism; 91. Lifting assembly; 911. Top block; 912. Push-out component; 9121. Wedge block; 9122. First rack; 9123. Second rack; 9124. Gear; 9125. Connecting rod; 92. Covering assembly; 921. Moving ring; 922. Clamping plate; 923. Control component; 9231. Conical sleeve; 9232. Reset component; 10. Path sensor. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses a manual clutch door opener.

[0036] Reference Figure 1 , Figure 2 , Figure 3 The manual clutch door opener includes a body 1, a moving part 2, a lead screw 3, a worm gear 4, a worm 5, a drive component 6, a connecting part 7, a clutch mechanism 8, and a clamping mechanism 9.

[0037] Reference Figure 2 , Figure 3The movable part 2 is slidably inserted into the body 1. One end of the movable part 2 located outside the body 1 is equipped with a connector for connecting to the drive mechanism of the door. The lead screw 3 is rotatably installed inside the body 1. The lead screw 3 is threaded through the movable part 2 and extends into the interior of the movable part 2, so that the movable part 2 can be inserted longer inside the body 1 and has a larger contact area with the inner wall of the body 1. This allows the inner wall of the body 1 to better guide the movement of the movable part 2 and improve the stability of the movable part 2.

[0038] Reference Figure 2 , Figure 3 The worm gear 4 is rotatably sleeved on the lead screw 3, and the worm 5 is rotatably mounted on the housing. The worm 5 meshes with the worm gear 4. The drive component 6 is mounted on the body 1 and is used to drive the worm 5 to rotate. In this embodiment, the drive component 6 is a servo motor. The servo motor is mounted on the body 1, and the output shaft of the servo motor is coaxially connected to the worm 5, thereby driving the worm 5 to rotate.

[0039] Reference Figure 2 A path sensor 10 is installed on the body 1. The path sensor 10 is used to detect the movement range of the movable part 2. In this embodiment, the path sensor 10 is a laser displacement sensor. The laser emitter shoots a laser beam at the movable part 2. The laser beam is reflected by the movable part 2 and received by the receiver. The laser path is different at different distances, so the movement range of the movable part 2 can be calculated and measured. A controller is installed on the body 1. The controller is electrically connected to the path sensor 10 and the drive unit 6.

[0040] During the opening and closing of the door by moving the movable part 2, the path sensor 10 detects the movement range of the movable part 2 in real time, thereby detecting the opening and closing range of the door. Then, the path sensor 10 sends an electrical signal to the controller, which then sends an electrical signal to the drive component 6 to control the drive component 6, thereby controlling the opening and closing range of the door. This effectively improves the convenience for users to control the opening and closing range of the door, such as fully open, half open, and closed.

[0041] Reference Figure 2 , Figure 3The connecting part 7 is slidably mounted on the lead screw 3. The connecting part 7 is used to partially insert into the worm gear 4. In this embodiment, the connecting part 7 is a ball bearing, and two balls bearings are installed at equal intervals in the circumferential direction on the lead screw 3. The worm gear 4 has an arc-shaped groove for the connecting part 7 to be partially inserted. The clutch mechanism 8 is mounted on the machine body 1. The clutch mechanism 8 is used to drive the connecting part 7 to slide towards the worm gear 4. The clutch mechanism 8 includes a clutch rod 81, a control rod 82, a lever 83, an elastic element 84, and a locking assembly 85. A cavity 31 is opened on the lead screw 3 along the length direction of the lead screw 3, and a through hole 32 is opened on the lead screw 3. The through hole 32 connects the cavity 31 with the groove on the worm gear 4 for the connecting part 7 to be inserted. The clutch rod 81 is slidably mounted in the cavity 31 along the length direction of the lead screw 3. A receiving groove 811 is opened on the clutch rod 81 for the connecting part 7 to pass through the through hole 3. 2. The clutch lever 81 is connected to the receiving groove 811 and has a guide surface 812. The guide surface 812 is used to guide the connecting part 7 from the receiving groove 811 to the groove that passes through the through hole 32 and is inserted into the worm gear 4. The control lever 82 is rotatably mounted on the machine body 1. The lever 83 is eccentrically mounted on the end of the control lever 82 near the clutch lever 81. The lever 83 is used to abut against the clutch lever 81. The elastic element 84 is mounted on the lead screw 3. The elastic element 84 is used to drive the clutch lever 81 to move towards the lever 83. The elastic element 84 is a telescopic spring. The telescopic spring is mounted on the side wall of the cavity 31 at the end of the lead screw 3 away from the lever 83. The telescopic spring is connected to the clutch lever 81. The telescopic spring always has the tendency to drive the clutch lever 81 to move towards the lever 83. The distance between the guide surface 812 and the lever 83 is greater than the distance between the receiving groove 811 and the lever 83.

[0042] During normal opening and closing of the door, the elastic element 84 drives the clutch lever 81 to move towards the lever 83. The guide surface 812 on the clutch lever 81 approaches the connecting part 7, and the guide surface 812 presses against the connecting part 7. At this time, the side of the connecting part 7 away from the guide surface 812 abuts against the side wall of the through hole 32 on the lead screw 3. Under the pressing action of the guide surface 812, the connecting part 7 can be squeezed out from the receiving groove 811. After passing through the through hole 32, the connecting part 7 can enter the groove on the worm gear 4. At this time, a part of the connecting part 7 still remains in the through hole 32 on the lead screw 3, and the worm gear can be pushed through the connecting part 7. 4 is connected to the lead screw 3 for transmission, and then the drive component 6 drives the worm 5 to rotate. The worm 5 drives the worm wheel 4 to rotate, and the worm wheel 4 drives the lead screw 3 to rotate through the connecting part 7. The lead screw 3 drives the movable part 2 to move, and the movable part 2 drives the door to open and close. In case of power failure or motor damage, the user turns the control lever 82. The control lever 82 drives the eccentric lever 83 to move towards the clutch lever 81. The lever 83 squeezes the clutch lever 81 towards the original lever 83. During the process, the elasticity contracts, and the receiving groove 811 on the clutch lever 81 connects with the connecting part 82. When the connecting parts 7 are facing each other, if the connecting parts 7 are above the receiving groove 811, the connecting parts 7 can fall into the receiving groove 811 through the through hole 32 under the action of gravity, moving away from the worm gear 4. If the connecting parts 7 are not above the receiving groove 811, the user can still manually open and close the door. The moving part 2 drives the lead screw 3 to rotate, and the lead screw 3 drives the connecting parts 7 to rotate. The arc-shaped groove on the worm gear 4 squeezes the connecting parts 7, thus squeezing the connecting parts 7 into the receiving groove 811. This disconnects the transmission connection between the worm gear 4 and the lead screw 3, allowing for convenient manual opening and closing of the door in case of power failure or damage to the drive component 6. The control mechanism ensures that the distance between the guide surface 812 and the lever 83 is greater than the distance between the receiving groove 811 and the lever 83. This allows the telescopic spring to recover its deformation and extend after the control lever 82 is released. The telescopic spring automatically drives the clutch lever 81 to move closer to the lever 83, automatically inserting the connecting part 7 into the worm gear 4. This improves the stability of the connection between the connecting part 7 and the worm gear 4, thus enhancing the transmission connection between the worm gear 4 and the lead screw 3. The user only needs to turn the control lever 82 when disconnecting the transmission connection between the lead screw 3 and the worm gear 4, reducing the possibility of accidentally disconnecting the lead screw 3 and the worm gear 4.

[0043] Reference Figure 3 , Figure 4A locking assembly 85 is mounted on the control lever 82. The locking assembly 85 is used to position the control lever 82 on the body 1. The locking assembly 85 includes a locking cover 851 and a locking block 852. The locking cover 851 is slidably mounted on the control lever 82 along its length direction. The locking block 852 is mounted on the side of the locking cover 851. At least two locking slots are provided on the body 1. One locking slot is used to face the locking block 852 when the control lever 82 is rotated so that the connecting part 7 is inserted into the worm gear 4. The other locking slot is used to face the locking block 852 when the control lever 82 is rotated so that the connecting part 7 enters the receiving slot 811. In this embodiment, the locking block 852 is a rubber block, and the cross section of the locking block 852 is a wedge shape that gradually increases from the direction close to the body 1 to the direction away from the body 1, so that the locking block 852 can be wedged tightly in the locking slot, improving the stability of the locking block 852 in the locking slot.

[0044] When the user twists the lock cover 851, the lock cover 851 drives the control lever 82 to rotate. When the control lever 82 rotates to the position where the connecting part 7 is inserted into the worm gear 4, the locking block 852 is aligned with one of the locking slots. The user then presses the lock cover 851 closer to the body 1, and the lock cover 851 drives the locking block 852 to insert into the corresponding locking slot. When the control lever 82 rotates to the position where the connecting part 7 is aligned with the receiving slot 811, the locking block 852 is aligned with the other locking slot. Pressing the lock cover 851 allows the locking block 852 to be inserted into the other locking slot. The side wall of the locking slot limits the locking block 852, thereby limiting the rotation of the lock cover 851 and locking the control lever 82, effectively improving the stability of the control lever 82.

[0045] Reference Figure 3 , Figure 5A clamping mechanism 9 is mounted on a clutch mechanism 8. The clamping mechanism 9 is used to position the connecting part 7 on the worm gear 4. The clamping mechanism 9 includes a lifting assembly 91 and a covering assembly 92. The lifting assembly 91 is mounted on the clutch mechanism 8 and is used to clamp the connecting part 7 against the worm gear 4. The lifting assembly 91 includes a top block 911 and a pusher 912. Two top blocks 911 are slidably mounted on the clutch lever 81 in the direction toward the connecting part 7. The pusher 912 is mounted on the clutch lever 81 and is used to drive the top blocks 911 toward the connecting part 7 when the clutch lever 81 drives the connecting part 7 to be inserted into the worm gear 4. The pusher 912 includes a wedge 9121, a first rack 9122, a second rack 9123, and a gear 9124. The connecting rod 9125 and the wedge 9121 are slidably mounted on the clutch rod 81 between the two top blocks 911. The cross-sectional dimensions of the wedge 9121 gradually decrease from near the lever 83 to far away from the lever 83. The first rack 9122 is slidably mounted on the clutch rod 81 along the sliding direction of the wedge 9121 and is connected to the wedge 9121. The second rack 9123 is slidably mounted on the clutch rod 81 along the sliding direction of the first rack 9122. The gear 9124 is rotatably mounted on the clutch rod 81 between the first rack 9122 and the second rack 9123 and meshes with both the first gear 9124 and the second gear 9124. The connecting rod is hingedly mounted on the lever 83 and is hinged to the second rack 9123.

[0046] After the locking cover 851 is pulled up, causing the locking block 852 to disengage from the locking groove, the elastic element 84 drives the clutch lever 81 to move closer to the lever 83, and drives the lever 83 to move away from the clutch lever 81. The guide surface 812 on the clutch lever 81 drives the connecting part 7 to be inserted into the worm gear 4. The lever 83 drives the connecting rod 9125 to move away from the lead screw 3. The connecting rod 9125 pulls the first rack 9122 to slide. The first rack 9122 drives the gear 9124 to rotate. The gear 9124 drives the second rack 9123 to slide. The second rack 9123 pulls the wedge block 9121 closer to the connecting part. When the wedge 9121 moves in the direction of 7, the side wall with a larger cross-sectional size of the wedge 9121 presses against the top block 911, and the top block 911 presses against the connecting part 7, which can easily press the connecting part 7 against the worm gear 4, improving the stability of the connecting part 7 inserted into the worm gear 4; when the control lever 82 drives the clutch lever 81 to move towards the lead screw 3 so that the receiving groove 811 is aligned with the connecting part 7, the lever 83 moves closer to the clutch lever 81, and the lever 83 drives the connecting rod 9125 to move towards the lead screw 3, so that the wedge 9121 moves away from the connecting part 7, so that the connecting part 7 can press against the top block 911 and enter the receiving groove 811.

[0047] Reference Figure 5 , Figure 6The covering assembly 92 is mounted on the worm gear 4. The covering assembly 92 is used to cover the connecting part 7 located at one end of the worm gear 4. The covering assembly 92 includes a moving ring 921, a clamping plate 922, and a control member 923. The moving ring 921 is slidably mounted on the worm gear 4 along the insertion direction of the connecting part 7. Multiple clamping plates 922 are hinged together circumferentially spaced on the moving ring 921. The control member 923 is mounted on the worm gear 4. The control member 923 is used to drive the multiple clamping plates 922 to move closer to or further away from one end of the connecting part 7. The control member 923 includes a conical sleeve 9231 and a reset member 9232. 9231 is mounted on the worm gear 4. The tapered sleeve 9231 is located between multiple clamping plates 922 away from the connecting part 7. The outer diameter of the tapered sleeve 9231 gradually increases from the direction near the connecting part 7 to the direction away from the connecting part 7. The reset member 9232 is mounted on the worm gear 4. The reset member 9232 is used to drive the moving ring 921 to move toward the connecting part 7. In this embodiment, the reset member 9232 is a reset spring. The reset spring is mounted on the worm gear 4 and connected to the moving ring 921. The reset spring always has the tendency to drive the moving ring 921 to move toward the direction near the connecting part 7.

[0048] When the connecting part 7 is pressed against the worm gear 4, the connecting part 7 first abuts against the moving ring 921, driving the moving ring 921 to move towards the conical sleeve 9231. The moving ring 921 causes the reset member 9232 to be compressed, and the moving ring 921 drives multiple clamping plates 922 to approach the conical sleeve 9231. The outer wall of the conical sleeve 9231 compresses the ends of the multiple clamping plates 922 away from the connecting part 7, causing the ends of the multiple clamping plates 922 away from the connecting part 7 to move away from each other. The ends of the multiple clamping plates 922 that are close to the connecting part 7 are... They can approach each other and press against the connecting part 7, thereby conveniently positioning the connecting part 7 on the worm gear 4 and improving the stability of the connecting part 7 on the worm gear 4. After the top block 911 and the guide surface 812 no longer squeeze the connecting part 7 toward the worm gear 4, the reset member 9232 drives the moving ring 921 to reset in the direction away from the conical sleeve 9231. The moving ring 921 drives the multiple clamping plates 922 away from the conical sleeve 9231, and the multiple clamping plates 922 can release the clamping of the connecting part 7, thereby allowing the connecting part 7 to disengage from the worm gear 4.

[0049] The implementation principle of a manual clutch door opener according to an embodiment of this application is as follows: The movable part 2 is connected to the drive structure of the door body. The elastic element 84 drives the clutch rod 81 to move away from the lead screw 3. The guide surface 812 on the clutch rod 81 presses the connecting part 7 against the worm gear 4. The clutch rod 81 drives the lever 83 to move away from the lead screw 3. The lever 83 drives the top block 911 to move towards the connecting part 7 through the pusher 912, thereby driving the top block 911 to push the connecting part 7 against the worm gear 4. At the same time, the connecting part 7 drives the moving ring 921 to the multiple clamps 922 approaching the conical sleeve 9231. The outer wall of sleeve 9231 drives multiple clamping plates 922 to move closer to each other near one end of the connecting part 7. The multiple clamping plates 922 clamp the end of the connecting part 7 located on the worm wheel 4, effectively improving the stability of the connecting part 7 inserted on the worm wheel 4. The subsequent driving component 6 drives the worm 5 to rotate, the worm 5 drives the worm wheel 4 to rotate, the worm wheel 4 drives the lead screw 3 to rotate, the lead screw 3 drives the movable part 2 to move, and the movable part 2 drives the door's drive structure to control the opening and closing of the door, effectively reducing the movement of the connecting part 7 relative to the worm wheel 4 and the lead screw 3, thereby reducing the wear of the connecting part 7, the worm wheel 4 and the lead screw 3, and effectively improving the service life of the door opener.

[0050] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A manual clutch door opener, characterized in that: The device includes a body (1), a movable part (2), a lead screw (3), a worm gear (4), a worm (5), a drive component (6), a connecting part (7), a clutch mechanism (8), and a clamping mechanism (9). The movable part (2) is slidably inserted into the body (1) and used to connect to the drive structure of the door. The lead screw (3) is rotatably mounted on the body (1) and threadedly connected to the movable part (2). The worm gear (4) is rotatably sleeved on the lead screw (3). The worm (5) is rotatably mounted on the housing and meshes with the worm gear (4). The drive component (6) is mounted on the body (1) and used to drive the worm (5) to rotate. The connecting part (7) is a clutch mechanism (8) and a clamping mechanism (9). The connecting part (7) is slidably mounted on the lead screw (3) and is used to partially insert into the worm gear (4). The clutch mechanism (8) is mounted on the machine body (1) and is used to drive the connecting part (7) to slide. The clamping mechanism (9) is mounted on the clutch mechanism (8) and is used to position the connecting part (7) on the worm gear (4). The clamping mechanism (9) includes a lifting component (91) and a covering component (92). The lifting component (91) is mounted on the clutch mechanism (8) and is used to clamp the connecting part (7) against the worm gear (4). The covering component (92) is mounted on the worm gear (4) and is used to cover the connecting part (7).

2. The manual clutch door opener according to claim 1, characterized in that: The clutch mechanism (8) includes a clutch rod (81), a control rod (82), a lever (83), an elastic element (84), and a locking assembly (85). A cavity (31) is provided on the lead screw (3), and a through hole (32) is provided on the lead screw (3) to connect the cavity (31) to a groove on the worm gear (4) into which the connecting part (7) is inserted. The clutch rod (81) slides through the cavity (31), and a receiving groove (811) is provided on the clutch rod (81) to accommodate the connecting part (7). A guide surface (812) is provided for guiding the connecting part (7) from the receiving groove (811) to the groove body inserted into the worm gear (4). The control lever (82) is rotatably mounted on the machine body (1). The lever (83) is eccentrically mounted on the control lever (82) and is used to abut against the clutch lever (81). The elastic element (84) is mounted on the lead screw (3) and is used to drive the clutch lever (81) to move toward the lever (83). The locking assembly (85) is mounted on the control lever (82) and is used to position the control lever (82).

3. A manual clutch door opener according to claim 2, characterized in that: The locking assembly (85) includes a lock cover (851) and a locking block (852). The lock cover (851) is slidably mounted on the control lever (82), and the locking block (852) is mounted on the lock cover (851). The body (1) has a locking groove for the locking block (852) to be inserted when the control lever (82) is rotated to the position where the connecting part (7) is inserted into the worm gear (4). The body (1) also has a locking groove at the position where the control lever (82) is rotated to the position where the connecting part (7) enters the receiving groove (811).

4. A manual clutch door opener according to claim 2, characterized in that: The connecting part (7) is a ball bearing, and the groove on the worm gear (4) into which the connecting part (7) is inserted is arc-shaped.

5. A manual clutch door opener according to claim 4, characterized in that: The elastic element (84) is a telescopic spring, which is located at the end of the screw (3) away from the lever (83). The telescopic spring is connected to the clutch lever (81). The distance between the guide surface (812) and the lever (83) is greater than the distance between the receiving groove (811) and the lever (83).

6. A manual clutch door opener according to claim 2, characterized in that: The lifting assembly (91) includes a top block (911) and a pusher (912). The top block (911) is slidably disposed on the clutch lever (81) in the direction of the connecting part (7). The pusher (912) is disposed on the clutch lever (81) and is used to drive the top block (911) to move toward the connecting part (7) when the clutch lever (81) is inserted into the worm gear (4).

7. A manual clutch door opener according to claim 6, characterized in that: The ejector (912) includes a wedge (9121), a first rack (9122), a second rack (9123), a gear (9124), and a connecting rod (9125). The wedge (9121) is slidably disposed on the clutch lever (81). The cross-sectional dimension of the wedge (9121) gradually decreases from near the lever (83) to away from the lever (83). The first rack (9122) is slidably disposed on the clutch lever (81) along the sliding direction of the wedge (9121) and is connected to the clutch lever (81). The wedge (9121) is connected, the second rack (9123) is slidably mounted on the clutch rod (81), the gear (9124) is rotatably mounted on the clutch rod (81) between the first rack (9122) and the second rack (9123), the gear (9124) meshes with both the first rack (9122) and the second rack (9123), the connecting rod (9125) is hinged on the lever (83), and the connecting rod (9125) is hinged to the second rack (9123).

8. A manual clutch door opener according to claim 1, characterized in that: The covering assembly (92) includes a moving ring (921), clamping plates (922) and a control element (923). The moving ring (921) is slidably disposed on the worm gear (4). Multiple clamping plates (922) are hinged together circumferentially on the moving ring (921). The control element (923) is disposed on the worm gear (4) and is used to drive the multiple clamping plates (922) to move closer to or further away from one end of the connecting part (7).

9. A manual clutch door opener according to claim 8, characterized in that: The control element (923) includes a conical sleeve (9231) and a reset element (9232). The conical sleeve (9231) is disposed on the worm gear (4) and is located between multiple clamping plates (922). The outer diameter of the conical sleeve (9231) gradually increases from near the connecting part (7) to away from the connecting part (7). The reset element (9232) is disposed on the worm gear (4) and is used to drive the moving ring (921) to move toward the connecting part (7).

10. A manual clutch door opener according to claim 1, characterized in that: The body (1) is provided with a path sensor (10) for detecting the movement range of the moving part (2), and the body (1) is provided with a controller, which is electrically connected to the path sensor (10) and the drive unit (6).

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