Manual rolling mechanism and rolling method thereof

Abstract

The invention relates to the technical field of product assembly, in particular to a manual rolling mechanism and a rolling method thereof. The floating part enables the rolling wheel on the rolling frame to move relative to the handheld support, the handheld support moves towards the rolling frame to abut against and press the unlocking assembly, the unlocking part is driven to be away from the rolling wheel to unlock rotation of the rolling wheel to achieve rolling operation, the rolling wheel can rotate freely, and normal operation can be achieved only when a screen is assembled and pressed. Screen press-fit operation can be conveniently carried out; when the support is held by hand to press the unlocking assembly, the locking component is driven to move towards the direction of the roller, so that the locking component abuts against the roller and locks the roller, the roller is locked and cannot rotate, the pressure in the pressing operation process is controlled, it can be ensured that the pressure applied to screen assembly pressing is correct, and product damage or assembly failure is avoided.

Description

Technical Field

[0001] This invention relates to the field of product assembly technology, and specifically to a manual rolling mechanism and its rolling method. Background Technology

[0002] In the assembly and repair of electronic products, screens need to be assembled and pressed together, and the PSA material (pressure-sensitive adhesive) on the back of the screen needs to be activated to ensure a firm bond. For small batches of products, manual rolling is generally used. However, improper pressure control during manual operation can easily lead to excessive force that breaks the screen, or insufficient force that fails to activate the PSA material on the back of the screen, thus affecting the efficiency of screen assembly and pressing repair. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a manual rolling mechanism and rolling method for controlling the pressure during the pressing operation, ensuring that the pressure applied during screen assembly pressing is correct, and avoiding damage to the product or assembly failure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A manual rolling mechanism, comprising: Handheld stand; A rolling assembly is disposed on the handheld support. The rolling assembly includes a rolling frame, on which rollers are disposed. A floating component is disposed between the rolling frame and the handheld support. The floating component is used to cause the rollers on the rolling frame to move relative to the handheld support. A locking assembly is disposed on the rolling frame. The locking assembly includes an unlocking component and a locking component. The locking component is disposed on a handheld support. The unlocking component abuts against and locks the roller. The locking component is disposed opposite to the roller. The handheld bracket moves toward the rolling frame to abut against and press the unlocking component, thereby driving the unlocking component away from the roller to unlock the rotation of the roller and realize the rolling operation. While the handheld bracket presses the unlocking component, it drives the locking component to move toward the roller, so that the locking component abuts against the roller and locks it.

[0005] In one embodiment of the present invention, the floating component includes a guide rod disposed on both sides of the rolling frame and passing through the guide hole of the handheld bracket to guide the movement of the rolling frame. An elastic element is disposed between the rolling frame and the handheld bracket, so that the handheld bracket can apply rolling force to the rolling frame.

[0006] In one embodiment of the present invention, the floating component further includes a limiting support rod, and the rolling frame is provided with a connecting hole. The limiting support rod passes through the limiting hole on the handheld bracket and connects with the connecting hole, so that the rolling frame cannot be detached from the handheld bracket.

[0007] In one embodiment of the present invention, the unlocking component includes an unlocking rod that passes through an unlocking hole on the rolling frame. One end of the unlocking rod is provided with a stop block. A rotating frame is provided on the rolling frame. The rotating frame is hinged to the middle of the unlocking pull rod. One end of the unlocking pull rod is hinged to the free end of the unlocking rod, and the other end is inclined toward the handheld support. A torsion spring is provided between the unlocking pull rod and the rotating frame, so that the unlocking pull rod drives the stop block on the unlocking rod to abut against and lock the roller.

[0008] In one embodiment of the present invention, the unlocking lever is provided with a sliding groove, and a sliding rod is slidably mounted on the sliding groove. The sliding rod passes through a sliding hole on the unlocking lever. When the unlocking lever drives the unlocking lever to move closer to / away from the roller, the sliding rod reciprocates along the sliding groove.

[0009] In one embodiment of the present invention, the locking component includes a locking rod that passes through a locking hole in the handheld bracket. A locking block is provided at the free end of the locking rod. The locking block is disposed opposite to the roller. The handheld bracket drives the locking rod to move toward the roller so that it abuts against the roller and locks it.

[0010] In one embodiment of the present invention, a limiting ring is provided on the locking rod, a guide sleeve is provided on the locking hole, the locking rod is slidably mounted on the guide sleeve, and a spring is sleeved on the locking rod, the spring being disposed between the limiting ring and the guide sleeve.

[0011] In one embodiment of the present invention, a limiting hole is provided on the side wall of the locking hole, a limiting rod is passed through the limiting hole, a waist-shaped groove is provided on the locking rod, the limiting rod passes through the waist-shaped groove, and an adjusting screw is provided on the locking hole, the free end of the adjusting screw abuts against the locking rod.

[0012] In one embodiment of the present invention, the roller includes a rotating shaft with both ends rotatably mounted on a rolling frame. A rolling roller is disposed in the middle of the rotating shaft. A stop gear matching the unlocking component and the locking component is disposed on the rotating shaft. Both the unlocking component and the locking component are provided with locking teeth matching the tooth surface of the stop gear. The locking teeth on the unlocking component and the locking component are inserted into the tooth surface of the stop gear to lock the rolling roller.

[0013] The present invention also includes a manual rolling method, comprising the following steps: Hold the handheld bracket and place the roller connected to the handheld bracket in the rolling position. Press down on the handheld bracket to move it toward the rolling frame. During the rolling operation, the handheld bracket always moves toward the rolling frame according to the change of the rolling position. When too little pressure is applied to the handheld bracket, the handheld bracket is not connected to the unlocking component or the unlocking component is not separated from the roller, and the unlocking component is locked to the roller. When the correct pressure is applied by pushing the hand-held bracket, the roller presses against the rolling position under the action of the hand-held bracket, so that the hand-held bracket is connected to the unlocking component, the unlocking component is separated from the roller to release the locking state, and the hand-held bracket is pushed to drive the roller to perform rolling operation on the rolling position. Both the locking component and the unlocking component are in the unlocked state from the roller. When excessive pressure is applied to the handheld bracket, the handheld bracket causes the roller to separate from the unlocking component. At the same time, the handheld bracket continues to move the locking component toward the roller until the locking component connects with the roller, and the locking component locks the roller.

[0014] The beneficial effects of this invention are: The floating component of this invention causes the rollers on the rolling frame to move relative to the handheld bracket. The handheld bracket moves towards the rolling frame, abutting and pressing the unlocking component, which drives the unlocking component away from the rollers to unlock the rollers' rotation and achieve the rolling operation. This allows the rollers to rotate freely, enabling normal screen assembly and pressing operations, thus facilitating screen pressing. Simultaneously, the handheld bracket presses the unlocking component, causing the locking component to move towards the rollers, abutting and locking the rollers. The rollers are locked and cannot rotate, controlling the pressure during the pressing operation. This ensures that the pressure applied during screen assembly and pressing is correct, preventing product damage or assembly failure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a manual rolling mechanism according to the present invention.

[0016] Figure 2 This is a schematic diagram of the locking component of the present invention.

[0017] Figure 3 This is a schematic diagram of the rolling assembly of the present invention.

[0018] The following are the labels in the diagram: 1. Handheld support; 11. Handle; 2. Rolling assembly; 21. Rolling frame; 22. Guide rod; 23. Elastic element; 24. Limiting support rod; 3. Roller; 31. Rotating shaft; 32. Rolling roller; 33. Stop gear; 34. Clamping tooth; 4. Unlocking component; 41. Unlocking rod; 42. Rotating frame; 43. Unlocking pull rod; 44. Torsion spring; 45. Sliding slot; 46. Sliding rod; 5. Locking component; 51. Locking rod; 52. Locking hole; 53. Guide sleeve; 54. Limiting ring; 55. Spring; 56. Limiting rod; 57. Waist-shaped groove; 58. Adjusting screw. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] Reference Figure 1-3 As shown, a manual rolling mechanism includes: Handheld stand 1; A rolling assembly 2 is disposed on the handheld support 1. The rolling assembly 2 includes a rolling frame 21, on which a roller 3 is disposed. A floating component is disposed between the rolling frame 21 and the handheld support 1. The floating component is used to make the roller 3 on the rolling frame 21 move relative to the handheld support 1. A locking assembly is disposed on the rolling frame 21. The locking assembly includes an unlocking component 4 and a locking component 5. The locking component 5 is disposed on the handheld support 1. The unlocking component 4 abuts against and locks the roller 3. The locking component 5 is disposed opposite to the roller 3. The handheld bracket 1 moves toward the rolling frame 21 to abut against and press the unlocking component, thereby driving the unlocking component 4 away from the roller 3 to unlock the rotation of the roller 3 and realize the rolling operation. While the handheld bracket 1 presses the unlocking component, it drives the locking component 5 to move toward the roller 3, so that the locking component 5 abuts against the roller 3 and locks it.

[0021] The floating component of this invention causes the roller 3 on the rolling frame 21 to move relative to the handheld bracket 1. The handheld bracket 1 moves toward the rolling frame 21 so that it abuts against and presses the unlocking component, driving the unlocking component 4 away from the roller 3 to unlock the rotation of the roller 3 and realize the rolling operation. This allows the roller 3 to rotate freely, so that the screen assembly pressing can be carried out normally, facilitating the screen pressing operation. At the same time, the handheld bracket 1 presses the unlocking component and drives the locking component 5 toward the roller 3 so that the locking component 5 abuts against and locks the roller 3. The roller 3 is locked and cannot rotate. This controls the pressure during the pressing operation, ensuring that the pressure applied during screen assembly pressing is correct and avoiding damage to the product or assembly failure.

[0022] This application is applied to the electronic product assembly and repair industry, especially in areas where there are certain pressure requirements for assembling screens of mobile phones / tablets. It can control the force during use to prevent mistakes, mainly by using the locking mechanism of the stop gear 33. When the current pressure is too low, the stop gear 33 on one side of the unlocking component 4 locks, and the jig roller 3 cannot rotate. When the current pressure is too high, the stop gear 33 on one side of the locking component 5 locks, and the jig roller 3 also cannot rotate. Only when the downward pressure is in the middle position, the stop gears 33 on both sides unlock at the same time, and the roller 3 can rotate freely, so that the operator can operate the rolling jig normally to perform screen pressing work.

[0023] Two handles 11 are installed on both sides of the handheld bracket 1 for pressing the screen onto the operating carrier, making it convenient to use.

[0024] In one embodiment of the present invention, the floating component includes a guide rod 22, which is disposed on both sides of the rolling frame 21 and passes through the guide hole of the handheld bracket 1 to guide the movement of the rolling frame 21. An elastic element 23 is disposed between the rolling frame 21 and the handheld bracket 1. The elastic element 23 can be a mechanical elastic element such as a helical spring, so that the handheld bracket 1 can apply rolling force to the rolling frame 21.

[0025] Specifically, the guide rod 22 passes through the guide hole of the handheld bracket 1 to guide the movement of the rolling frame 21 and guide the rollers 3 on the rolling frame up and down to ensure the stability of the force applied by the handheld bracket 1. An elastic element 23 is provided between the rolling frame 21 and the handheld bracket 1 so that the handheld bracket 1 can apply rolling pressure to the rolling frame 21 and generate corresponding pressure when operating the fixture, so that the rolling pressure is flexible and avoids damage to the product or assembly failure.

[0026] In one embodiment of the present invention, the floating component further includes a limiting support rod 24, and the rolling frame 21 is provided with a connecting hole. The limiting support rod 24 passes through the limiting hole on the handheld bracket 1 and connects with the connecting hole, so that the rolling frame 21 cannot be detached from the handheld bracket 1.

[0027] Specifically, the limiting rod 24 passes through the limiting hole and the connecting hole on the handheld bracket 1. The limiting rod 24 and the connecting hole can be connected by a thread or by replacing the limiting rod 24 with a different length. The limiting rod 24 not only prevents the rolling frame 21 from detaching from the handheld bracket 1, but also adjusts the relative distance between the locking rod 51 and the roller 3. With the help of different lengths of unlocking levers 43 (the length of the unlocking lever 43 on the side away from the unlocking lever 41), the range of pressing force can be adjusted, and the rolling can be operated normally. It is suitable for various screen rolling processes and has a wide range of applications.

[0028] In one embodiment of the present invention, the unlocking component 4 includes an unlocking rod 41, which passes through an unlocking hole on the rolling frame 21. One end of the unlocking rod 41 is provided with a stop block. A rotating frame 42 is provided on the rolling frame 21. The rotating frame 42 is hinged to the middle of the unlocking pull rod 43. One end of the unlocking pull rod 43 is hinged to the free end of the unlocking rod 41, and the other end is inclined towards the handheld support 1. A torsion spring 44 is provided between the unlocking pull rod 43 and the rotating frame 42, so that the unlocking pull rod 43 drives the stop block on the unlocking rod 41 to abut against the roller 3 and lock it.

[0029] Specifically, the manual holder 1 is held and the roller 3 is placed on the rolling position of the processed product. A torsion spring 44 is provided between the unlocking lever 43 and the rotating frame 42, so that the unlocking lever 43 drives the stop block on the unlocking lever 41 to abut against the roller 3. At this time, the locking teeth 34 on the unlocking component 4 are inserted into the tooth surface of the stop gear 33, abut against the roller 3 and lock it. In the under-pressure state, the roller 3 is stuck and cannot rotate. The handheld bracket 1 and the unlocking lever 43 on the unlocking component 4 abut against one end of the handheld bracket 1 at an angle, causing the free end of the unlocking lever 43 to move toward the rolling frame 21. The rotating frame 42 is hinged to the middle of the unlocking lever 43, forming a lever-like structure, which drives the unlocking rod 41 to move toward the handheld bracket 1. The unlocking rod 41 drives the locking teeth 34 on it to move away from the tooth surface of the corresponding stop gear 33, and the roller 3 brakes and unlocks. The roller 3 can rotate freely and roll the product.

[0030] In one embodiment of the present invention, the unlocking lever 43 is provided with a sliding groove 45, and a sliding rod 46 is slidably mounted on the sliding groove 45. The sliding rod 46 passes through a sliding hole on the unlocking lever 41. When the unlocking lever 43 drives the unlocking lever 41 to move closer to / away from the roller 3, the sliding rod 46 reciprocates along the sliding groove 45.

[0031] Specifically, the sliding rod 46 passes through the sliding hole on the unlocking rod 41. When the unlocking lever 43 moves the unlocking rod 41 closer to / away from the roller 3, the unlocking rod 41 and the unlocking lever 43 will be in a certain position. The sliding slot 45 can avoid structural interference. At the same time, the unlocking lever 43 can be V-shaped. The side of the sliding slot 45 near the rotating frame 42 is close to the hinge between the rotating frame 42 and the unlocking lever 43. When the unlocking lever 43 is pressed tightly against the rolling frame 21, the unlocking rod 41 is close to the hinge between the rotating frame 42 and the unlocking lever 43, which can form a certain locking effect on the unlocking lever 41, so that the unlocking lever 41 and the roller 3 remain separated.

[0032] In one embodiment of the present invention, the locking component 5 includes a locking rod 51, which passes through the locking hole 52 of the handheld bracket 1. The free end of the locking rod 51 is provided with a locking block, which is disposed opposite to the roller 3. The handheld bracket 1 drives the locking rod 51 to move toward the roller 3 so that it abuts against the roller 3 and locks it.

[0033] The rolling frame is provided with a guide sleeve that matches the locking rod. The locking rod passes through the guide sleeve and is connected to the stop gear. The guide sleeve serves as a guide.

[0034] Specifically, when excessive pressure is applied to the handheld bracket 1, the handheld bracket 1 drives the locking rod 51 to move towards the roller 3, causing the locking teeth 34 on the locking rod 51 to insert into the tooth surface of the stop gear 33, making it abut against and lock the roller 3. At the same time, the unlocking rod 41 drives the locking teeth 34 on it away from the tooth surface of the corresponding stop gear 33. At this time, excessive pressure is applied to the handheld bracket 1, causing the rolling roller 32 to brake and stop rolling operation. The rolling roller 32 is locked and cannot rotate, which can ensure that the pressure applied for screen assembly and pressing is correct.

[0035] In one embodiment of the present invention, a limiting ring 54 is provided on the locking rod 51, a guide sleeve 53 is provided on the locking hole 52, the locking rod 51 is slidably mounted on the guide sleeve 53, and a spring 55 is sleeved on the locking rod 51, the spring 55 being disposed between the limiting ring 54 and the guide sleeve 53.

[0036] Specifically, the stop gear 33 and the rolling wheel 32 rotate synchronously. Since the locking rod 51 is fitted with a spring 55, which is located between the limiting ring 54 and the guide sleeve 53, when the locking rod 51 abuts against the edge of the tooth surface of the stop gear 33, it will push the locking rod 51 to move upward and compress the spring 55. At the next tooth surface groove, the spring 55 pushes the locking rod 51 to move downward. This process is repeated, causing the locking teeth 34 on the locking rod 51 to rub against the stop gear 33 and produce a sound similar to "click-click-click", thus forming an overvoltage alarm state.

[0037] In one embodiment of the present invention, a limiting hole is provided on the side wall of the locking hole 52, a limiting rod 56 is provided through the limiting hole, a waist-shaped groove 57 is provided on the locking rod 51, the limiting rod 56 is provided through the waist-shaped groove 57, an adjusting screw 58 is provided on the locking hole 52, and the free end of the adjusting screw 58 abuts against the locking rod 51.

[0038] Specifically, the locking rod 51 is provided with a waist-shaped groove 57, and the limiting rod 56 passes through the waist-shaped groove 57. The locking rod 51 slides on the locking hole 52. The waist-shaped groove 57 and the limiting rod 56 guide the locking rod 51 and limit its stroke, preventing the locking rod 51 from quickly inserting into the tooth surface of the check gear, causing the roller 3 to brake suddenly and forming a certain pressure buffer, thus ensuring the stability of the screen pressing. At the same time, the limiting rod 56 can prevent the locking rod 51 from detaching from the handheld bracket 1, reducing the assembly difficulty of the locking rod 51. The free end of the adjusting screw 58 abuts against the locking rod 51. Rotating the adjusting screw 58 can change the retraction stroke of the locking rod 51 in the locking hole 52, thereby adjusting the alarm pressure of the fixture. When the free end of the adjusting screw 58 is too close to the limit rod 56, the compression of the locking rod 51 on the spring 55 will decrease, causing the locking teeth 34 on the locking rod 51 to make hard contact with the stop gear 33. The locking teeth 34 cannot achieve excessive bounce to lock the rolling roller 32. When the free end of the adjusting screw 58 is too far from the limit rod 56, the compression of the locking rod 51 on the spring 55 will increase, causing the locking teeth 34 on the locking rod 51 to make soft contact with the stop gear 33. That is, the locking teeth 34 and the stop gear 33 cannot achieve excessive bounce to achieve the alarm pressure on the rolling roller 32.

[0039] In one embodiment of the present invention, the roller 3 includes a rotating shaft 31, both ends of which are rotatably mounted on the rolling frame 21. A rolling roller 32 is provided in the middle of the rotating shaft 31. A stop gear 33 matching the unlocking component 4 and the locking component 5 is provided on the rotating shaft 31. Both the unlocking component 4 and the locking component 5 are provided with locking teeth 34 matching the tooth surface of the stop gear 33. The locking teeth 34 on the unlocking component 4 and the locking component 5 are inserted into the tooth surface of the stop gear 33 to lock the rolling roller 32.

[0040] The roller 32 is a rubber-coated roller 32 used to press the screen. The rubber-coated roller 32 can ensure that the roller 3 will not damage the product.

[0041] Specifically, the unlocking rod 41 is provided with a locking tooth 34, and the locking rod 51 is provided with a locking tooth 34. The locking rod 51 and the unlocking rod 41 can each correspond to a check gear, or they can share a check gear to achieve the above function. The preferred solution of the present invention is to provide check gears on both sides of the rolling roller 32. Each check gear is arranged opposite to the unlocking component 4 and the locking component 5 on both sides. This not only ensures the balance of the entire fixture and avoids one side being too heavy and over-pressure, but also ensures accurate pressing force. At the same time, the separation of the unlocking component 4 and the locking component 5 can reduce the assembly difficulty, and the unlocking rod 41 and the locking rod 51 will not interfere with each other.

[0042] The present invention also includes a manual rolling method, comprising the following steps: Hold the hand-held bracket 1 and place the roller 3 connected to the hand-held bracket 1 in the rolling position. Press the hand-held bracket 1 down so that the hand-held bracket 1 moves toward the rolling frame 21. During the rolling operation, the hand-held bracket 1 always moves toward the rolling frame 21 according to the change of the rolling position. When too little pressure is applied to the handheld bracket 1, the handheld bracket 1 is not connected to the unlocking component 4 or the unlocking component 4 is not separated from the roller 3, and the unlocking component 4 is locked to the roller 3. When the correct pressure is applied to the hand-held bracket 1, the roller 3 is pressed against the rolling position under the drive of the hand-held bracket 1, so that the hand-held bracket 1 is connected to the unlocking component, the unlocking component 4 is separated from the roller 3 to release the locking state, and the hand-held bracket 1 is pushed to drive the roller 3 to perform rolling operation on the rolling position. The locking component 5 and the unlocking component 4 are both in the unlocked state with the roller 3. When excessive pressure is applied to the handheld bracket 1, the handheld bracket 1 causes the roller 3 to separate from the unlocking component. At the same time, the handheld bracket 1 continues to move the locking component 5 toward the roller 3 until the locking component 5 connects with the roller 3, and the locking component 5 locks the roller 3.

[0043] When excessive pressure is applied to the handheld bracket 1 and the locking teeth 34 on the locking component 5 are not properly engaged with the teeth of the stop gear 33, the handheld bracket 1 drives the roller 3 to roll. At the same time, the stop gear 33 and the rolling roller 32 rotate synchronously, and the locking teeth 34 on the locking component 5 abut against the upper edge of the teeth. Since the spring 55 is located between the limiting ring 54 and the guide sleeve 53, the rotation of the stop gear 33 causes the upper edge of the teeth to cause the locking teeth 34 on the locking component 5 to bounce up and down. It can also emit a similar "click-click-click" sound between the teeth and the locking teeth 34 on the locking component 5, forming an overpressure alarm state.

[0044] The present invention comprises an unlocking component 4, a locking component 5, and a roller 3 forming a foolproof mechanism. The foolproof mechanism utilizes the locking mechanism of a stop gear 33 and a locking tooth 34. When the downward pressure is too low, the locking tooth 34 on one side of the unlocking component 4 locks the stop gear 33, preventing the jig roller 3 from rotating. When the downward pressure is too high, the locking tooth 34 on one side of the locking component 5 locks the stop gear 33, also preventing the jig roller 3 from rotating. Only when the downward pressure is at the intermediate level, i.e., when neither the locking component 5 nor the unlocking component 4 is connected to the roller 3 and is in a disengaged state, is the stop gear 33, which rotates synchronously with the roller 3, unlocked, allowing the roller 3 to rotate freely. Only then can the OP (screen assembly pressing) be operated normally, facilitating screen pressing operations.

[0045] Usage process The manual handheld bracket 1 is held, and the roller 3 is placed on the rolling position of the processed product. At this time, the locking teeth 34 on the unlocking component 4 are inserted into the tooth surface of the stop gear 33, abutting against and locking the roller 3. A certain pressure is applied to the handheld bracket 1, causing the handheld bracket 1 to move towards the rolling frame 21 until the handheld bracket 1 abuts against the end of the unlocking lever 43 on the unlocking component 4 that is inclined towards the handheld bracket 1, and the free end of the unlocking lever 43 moves towards the rolling frame 21. The rotating frame 42 and the unlocking lever... The middle of the lever 43 is hinged, forming a lever-like structure, which drives the unlocking lever 41 to move toward the handheld bracket 1. The unlocking lever 41 drives the locking teeth 34 on it away from the tooth surface of the corresponding stop gear 33. At the same time, the handheld bracket 1 drives the locking lever 51 to move toward the roller 3. The locking teeth 34 on the locking lever 51 are not connected to the stop gear 33. At this time, the locking component 5 and the unlocking component 4 are not connected to the roller 3 and are in a separated unlocked state. At this time, the handheld bracket 1 is pushed to apply the correct pressure to perform the rolling operation. During the rolling operation, a certain pressure must always be applied to the hand-held support 1 to make it move towards the rolling frame 21. When excessive pressure is applied to the hand-held support 1 and it is not locked, that is, the locking teeth 34 on the locking component 5 are not tightly engaged with the tooth surface of the stop gear 33. The locking teeth 34 on the locking rod 51 abut against the edge of the tooth surface of the corresponding stop gear 33. Continue to push the hand-held support 1 to drive the rolling roller 32 to roll, so that the stop gear 33 and the rolling roller 32 are synchronized. When the locking rod 51 is rotated, a spring 55 is sleeved on it. The spring 55 is located between the limiting ring 54 and the guide sleeve 53. When the locking rod 51 abuts against the edge of the tooth surface of the stop gear 33, it will push the locking rod 51 to move upward and compress the spring 55. At the next tooth surface groove, the spring 55 pushes the locking rod 51 to move downward. This process is repeated, causing the locking teeth 34 on the locking rod 51 to rub against the stop gear 33 and produce a sound similar to "click-click-click", forming an overvoltage alarm state. During the rolling operation, a certain pressure must always be applied to the handheld bracket 1 to make it move towards the rolling frame 21. When excessive pressure is applied to the handheld bracket 1, the handheld bracket 1 drives the locking rod 51 to move towards the roller 3, so that the locking teeth 34 on the locking rod 51 are inserted into the tooth surface of the stop gear 33, making it abut against the roller 3 and lock it. At the same time, the unlocking rod 41 drives the locking teeth 34 on it away from the tooth surface of the corresponding stop gear 33. At this time, excessive pressure is applied to the handheld bracket 1, causing the rolling roller 32 to brake and the rolling operation to be stopped. The rolling roller 32 is locked and cannot rotate, which can ensure that the pressure applied to the screen assembly and pressing is correct and avoid damage to the product or assembly failure.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A manual rolling mechanism, characterized in that, include: Handheld stand; A rolling assembly is disposed on the handheld support. The rolling assembly includes a rolling frame, on which rollers are disposed. A floating component is disposed between the rolling frame and the handheld support. The floating component is used to cause the rollers on the rolling frame to move relative to the handheld support. A locking assembly is disposed on the rolling frame. The locking assembly includes an unlocking component and a locking component. The locking component is disposed on a handheld support. The unlocking component abuts against and locks the roller. The locking component is disposed opposite to the roller. The handheld bracket moves toward the rolling frame to abut against and press the unlocking component, thereby driving the unlocking component away from the roller to unlock the rotation of the roller and realize the rolling operation. While the handheld bracket presses the unlocking component, it drives the locking component to move toward the roller, so that the locking component abuts against the roller and locks it.

2. The manual rolling mechanism as described in claim 1, characterized in that, The floating component includes guide rods, which are disposed on both sides of the rolling frame and pass through guide holes in the handheld bracket to guide the movement of the rolling frame. An elastic element is provided between the rolling frame and the handheld bracket, so that the handheld bracket can apply rolling pressure to the rolling frame.

3. The manual rolling mechanism as described in claim 1, characterized in that, The floating component also includes a limiting support rod. The rolling frame is provided with a connecting hole. The limiting support rod passes through the limiting hole on the handheld bracket and connects with the connecting hole, so that the rolling frame cannot be detached from the handheld bracket.

4. The manual rolling mechanism as described in claim 1, characterized in that, The unlocking component includes an unlocking rod that passes through an unlocking hole on the rolling frame. One end of the unlocking rod is provided with a stop block. A rotating frame is provided on the rolling frame. The rotating frame is hinged to the middle of the unlocking pull rod. One end of the unlocking pull rod is hinged to the free end of the unlocking rod, and the other end is inclined towards the handheld support. A torsion spring is provided between the unlocking pull rod and the rotating frame, so that the unlocking pull rod drives the stop block on the unlocking rod to abut against the roller and lock it.

5. The manual rolling mechanism as described in claim 4, characterized in that, The unlocking lever is provided with a sliding groove, and a sliding rod is slidably mounted on the sliding groove. The sliding rod passes through a sliding hole on the unlocking lever. When the unlocking lever moves the unlocking lever closer to / away from the roller, the sliding rod reciprocates along the sliding groove.

6. The manual rolling mechanism as described in claim 1, characterized in that, The locking component includes a locking rod that passes through a locking hole in the handheld bracket. A locking block is provided at the free end of the locking rod. The locking block is positioned opposite to the roller. The handheld bracket drives the locking rod to move toward the roller so that it abuts against the roller and locks it.

7. The manual rolling mechanism as described in claim 6, characterized in that, The locking rod is provided with a limit ring, the locking hole is provided with a guide sleeve, the locking rod slides on the guide sleeve, and a spring is sleeved on the locking rod, the spring being disposed between the limit ring and the guide sleeve.

8. The manual rolling mechanism as described in claim 6, characterized in that, A limiting hole is provided on the side wall of the locking hole, a limiting rod is passed through the limiting hole, a waist-shaped groove is provided on the locking rod, the limiting rod passes through the waist-shaped groove, and an adjusting screw is provided on the locking hole, the free end of the adjusting screw abuts against the locking rod.

9. The manual rolling mechanism as described in claim 1, characterized in that, The roller includes a rotating shaft with both ends rotatably mounted on a rolling frame. A rolling roller is provided in the middle of the rotating shaft. A stop gear matching the unlocking component and the locking component is provided on the rotating shaft. Both the unlocking component and the locking component are provided with locking teeth that match the tooth surface of the stop gear. The locking teeth on the unlocking component and the locking component are inserted into the tooth surface of the stop gear to lock the rolling roller.

10. A manual rolling method, characterized in that, Includes the following steps: Hold the handheld bracket and place the roller connected to the handheld bracket in the rolling position. Press down on the handheld bracket to move it toward the rolling frame. During the rolling operation, the handheld bracket always moves toward the rolling frame according to the change of the rolling position. When too little pressure is applied to the handheld bracket, the handheld bracket is not connected to the unlocking component or the unlocking component is not separated from the roller, and the unlocking component is locked to the roller. When the correct pressure is applied by pushing the hand-held bracket, the roller presses against the rolling position under the action of the hand-held bracket, so that the hand-held bracket is connected to the unlocking component, the unlocking component is separated from the roller to release the locking state, and the hand-held bracket is pushed to drive the roller to perform rolling operation on the rolling position. Both the locking component and the unlocking component are in the unlocked state from the roller. When excessive pressure is applied to the handheld bracket, the handheld bracket causes the roller to separate from the unlocking component. At the same time, the handheld bracket continues to move the locking component toward the roller until the locking component connects with the roller, and the locking component locks the roller.

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