A slide lock device with anti-dropping function

Abstract

The utility model provides a slide lock device with prevent falling function belongs to umbrella locking technical field. It solved the existing slide lock device when collecting the umbrella will fall fast, there is the hidden danger of safety, poor stability and other technical problems. This slide lock device with prevent falling function, including the umbrella post and the slide block of setting on the umbrella post, a plurality of anti -falling grooves are arranged on the umbrella post along its axial interval, the lock mechanism, ratchet mechanism and rotary damper are provided in the slide block, the lock mechanism can be connected with the anti -falling slot car and makes the slide block and the umbrella post fixed, one end of rotary damper is fixedly connected with the inner wall of slide block, the other end is fixedly connected with ratchet mechanism, the ratchet mechanism includes the anti -falling wheel, is equipped with the protruding tooth of being able to insert into the anti -falling groove on the anti -falling wheel, the anti -falling wheel of ratchet mechanism clockwise can rotate smoothly, anticlockwise cannot rotate. The utility model has the advantages of preventing falling fast, higher safety and stability.

Description

Technical Field

[0001] This utility model belongs to the field of umbrella locking technology, and specifically refers to a sliding lock device with anti-fall function. Background Technology

[0002] A parasol is an umbrella used to block direct sunlight, reducing the damage of ultraviolet rays to the skin. Large parasols are widely used in outdoor settings such as yards, beaches, parks, and squares. A typical parasol includes a counterweight base, umbrella pole, umbrella ribs, umbrella fabric, and an operating mechanism. The counterweight base secures the umbrella pole; the umbrella pole is the core support of the entire parasol, bearing the weight of the umbrella ribs and fabric, as well as wind force; the umbrella ribs are connected to the umbrella pole and support the umbrella fabric, unfolding to form a sunshade; the umbrella fabric provides sun and rain protection; and the operating mechanism controls the unfolding and closing of the umbrella fabric.

[0003] The aforementioned operating mechanisms generally employ a sliding lock that is fitted onto the umbrella column and can move up and down relative to the umbrella column. Specifically, as shown in utility model application number 202322850175.9, this utility model discloses a two-way locking component and a sliding lock device. The two-way locking component includes: a pushing component, a locking component, a sliding component, and an elastic component. The pushing component has a wedge-shaped groove, and two guide surfaces are provided on the side of the wedge-shaped groove near the locking object. The sides of the two guide surfaces that are close together are inclined towards the locking object. The pushing directions of the locking component and the pushing component are perpendicular to each other. One end of the locking component can be slidably inserted into the locking object. The sliding component is installed on the locking component, and the sliding component is located in the wedge-shaped groove and slides against the guide surfaces. The elastic component is installed on the locking component to apply a spring force towards the locking object to the locking component. The pusher moves the guide surface, causing the inclined guide surface to slide the locking part out of the locked object through the slider, thereby unlocking the pusher. Then, the pusher can be continuously pushed to adjust the umbrella surface. This allows the umbrella surface to be adjusted with a single push, reducing the number of steps required for umbrella adjustment.

[0004] However, the aforementioned two-way locking components and sliding lock devices still have the following problems:

[0005] 1. When the umbrella needs to be opened and the sliding lock device needs to be pushed upward, it is fine. The user only needs to press the push handle and continue to apply upward force. However, when the umbrella needs to be closed and the sliding lock device needs to be pulled downward, due to the influence of the weight of the umbrella ribs and the umbrella canopy, the sliding lock device itself has a large downward kinetic energy. After unlocking, the user needs to resist the above-mentioned gravity while slowly closing the umbrella canopy. The operation is difficult and can easily lead to hand injuries, posing a safety hazard.

[0006] 2. When the umbrella needs to be closed and the sliding lock device is pulled down, the sliding lock device itself has a large downward kinetic energy due to the influence of the weight of the umbrella ribs and umbrella canopy. If the user is not strong enough and does not provide sufficient resistance, the sliding lock device may move down too fast, causing damage to the sliding lock device, umbrella column, umbrella ribs or umbrella canopy, resulting in poor stability when closing the umbrella and affecting the overall service life of the sun umbrella. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sliding lock device that prevents rapid falling and has higher safety and stability.

[0008] The objective of this utility model can be achieved through the following technical solutions:

[0009] A sliding lock device with anti-fall function includes an umbrella column and a slider sleeved on the umbrella column. The device is characterized in that: the umbrella column has a plurality of anti-fall grooves spaced apart along its axial direction; and the slider is equipped with a locking mechanism, a ratchet mechanism, and a rotation damper.

[0010] The locking mechanism can be machined with the fall arrestor slot to fix the slider to the umbrella column.

[0011] One end of the rotary damper is fixedly connected to the inner wall of the slider, and the other end is fixedly connected to the ratchet mechanism.

[0012] The ratchet mechanism includes a fall arrestor wheel, which has protruding teeth that can be inserted into a fall arrestor groove. The fall arrestor wheel of the ratchet mechanism can rotate smoothly clockwise but cannot rotate counterclockwise.

[0013] This sliding lock device, through the inclusion of a fall-prevention groove, a ratchet mechanism, and a rotary damper, utilizes the unidirectional rotation characteristic of the ratchet mechanism (smooth clockwise rotation, locking counterclockwise rotation) to effectively prevent the slider from rapidly falling due to the weight of the umbrella when the user pulls down to close the canopy. Specifically, when the slider tends to fall, the counterclockwise rotation of the fall-prevention wheel is stopped, and its teeth engage in the fall-prevention groove of the canopy column, forming a mechanical lock. Simultaneously, the rotary damper provides frictional resistance, absorbing the kinetic energy of the fall and allowing the slider to descend slowly. This significantly improves the safety of the umbrella-closing operation, avoiding the risk of pinching hands and impact damage to umbrella components caused by rapid descent. At the same time, it ensures that when the slider is pushed upward to open the canopy, the fall-prevention wheel can rotate freely clockwise, and the teeth smoothly slide through the fall-prevention groove, ensuring smooth and unobstructed operation.

[0014] In the aforementioned sliding lock device with anti-fall function, the rotary damper includes a left side plate, a right side plate, a friction pad, and a fastening bolt. The friction pad is disposed between the left side plate and the right side plate. The fastening bolt passes through the left side plate, the friction pad, and the right side plate, and fixes the three together with the mounting plate inside the slider. The right side plate is fixedly connected to the ratchet mechanism.

[0015] The rotary damper uses a structure where friction pads are held between left and right side plates and fixed to the slider mounting plate by fastening bolts. This design is simple, compact, and provides a stable installation. By adjusting the tightness of the fastening bolts or replacing friction pads with different coefficients of friction, the magnitude of the friction torque generated by the rotary damper can be easily and accurately preset and adjusted. This adapts to the drop cushioning requirements of umbrellas of different sizes and weights, improving the versatility and flexibility of the sliding lock device.

[0016] In the aforementioned slip lock device with anti-fall function, the ratchet mechanism includes an anti-fall wheel, a rotating shaft, and a sleeve. A connecting part is fixedly connected to the left side of the rotating shaft, and the connecting part is fixedly connected to a rotation damper. The anti-fall wheel is sleeved on the rotating shaft and can rotate relative to the rotating shaft. A ratchet-shaped groove is provided on the right side of the anti-fall wheel. The sleeve is sleeved on the rotating shaft and circumferentially fixed to the rotating shaft. A pawl that cooperates with the ratchet-shaped groove is provided on the left side of the sleeve. The pawl can extend into the ratchet-shaped groove and prevent the anti-fall wheel from rotating counterclockwise relative to the sleeve.

[0017] The ratchet mechanism achieves a reliable counterclockwise locking function by engaging the ratchet-shaped groove on the anti-fall wheel with the pawl on the sleeve. The connecting part fixes the rotary damper to the rotating shaft, ensuring the effective transmission of damping torque. The anti-fall wheel can rotate relative to the rotating shaft, so that when the slider is pushed upward (the anti-fall wheel rotates clockwise), the sleeve and its pawl will not cause obstruction, ensuring the smoothness of the upward push operation. This structure is clearly designed, reliable in operation, and achieves one-way locking.

[0018] In the aforementioned sliding lock device with anti-fall function, the left side of the sleeve is formed with a mounting boss that can be inserted into a ratchet-shaped groove. The pawl is rotatably mounted on the mounting boss, and a spring that drives the pawl to rotate outward is provided on the mounting boss. The pawl can cooperate with the inner groove wall of the ratchet-shaped groove to prevent the anti-fall wheel from rotating counterclockwise.

[0019] This sliding lock device features a mounting boss on the sleeve, on which a spring-driven pawl is rotatably mounted. This ensures that the pawl always has an outward swing tendency under the action of the spring, allowing it to reliably and promptly enter the ratchet-shaped groove of the anti-fall wheel. When the anti-fall wheel attempts to rotate counterclockwise, the end of the pawl will lock against the inner wall of the groove, forming a rigid block that effectively prevents the anti-fall wheel and the slider from falling. The preload design of the spring ensures the sensitivity and reliability of the pawl's movement.

[0020] In the aforementioned slip lock device with anti-fall function, there are at least two pawls, which are arranged in a circular array with the central axis of the sleeve as the center.

[0021] By setting at least two pawls arranged in a circular array, the load-bearing capacity and locking reliability of the ratchet mechanism are significantly improved. Multiple pawls can share the impact force of falling. Even if a single pawl is abnormal or worn, the other pawls can still provide an effective locking effect, which enhances the redundancy and durability of the mechanism and ensures the long-term stable operation of the anti-fall function.

[0022] In the aforementioned sliding lock device with anti-fall function, an annular protrusion is provided on the outer circumferential surface of the sleeve. The protrusion is located on the right side of the mounting boss, and the left side of the protrusion can abut against the right side of the anti-fall wheel and close the ratchet-shaped groove.

[0023] When the convex ring on the sleeve engages with the ratchet-shaped groove of the anti-fall wheel, its left side can abut against the right side of the anti-fall wheel. This design provides auxiliary support in the locked state, enhancing structural stability. More importantly, it relatively seals off the ratchet engagement area (ratchet-shaped groove), effectively preventing external debris such as dust, sand, and moisture from entering the ratchet engagement surface. This prevents mechanism failure due to contamination, corrosion, or jamming, greatly improving the reliability and service life of the ratchet mechanism in complex outdoor environments.

[0024] In the aforementioned anti-fall sliding lock device, the locking mechanism includes a pusher, a locking member, a sliding member, and an elastic member. The pusher has a wedge-shaped groove, and two guide surfaces are provided on the side of the wedge-shaped groove near the umbrella column. The sides of the two guide surfaces that are close together are inclined towards the umbrella column. The locking member is perpendicular to the pushing direction of the pusher, and the inner end of the locking member can slide into the anti-fall groove. The sliding member is fixedly connected to the locking member, and the end of the sliding member is located inside the wedge-shaped groove and slides against the guide surface. The elastic member is located at the outer end of the locking member, and the elastic member can drive the locking member to move towards the umbrella column.

[0025] This sliding lock device utilizes the wedge-shaped groove and inclined guide surface on the pusher to cooperate with the sliding member. The user only needs to push the push handle once (moving the pusher), and the guide surface will drive the sliding member and locking member to overcome the elastic force of the elastic member, causing the inner end of the locking member to exit from the anti-fall groove of the umbrella column, thus unlocking. After releasing the hand, the locking member can automatically reset and re-insert into the anti-fall groove under the action of the elastic member to complete the locking. This design continues the advantage of unlocking / locking in one action, making the operation simple and quick, providing a good user experience, and is compatible with the new anti-fall structure added in this patent.

[0026] In the aforementioned sliding lock device with anti-fall function, the locking mechanism further includes a guide member, which is fixedly connected to the slider body. The pushing member can move up and down along the guide member under the push of the user. A baffle is provided on the side of the guide member away from the umbrella column. A through hole is provided on the baffle. The outer end of the locking member can pass through the through hole and move relative to the baffle. The elastic member is sleeved on the locking member. The outer end of the elastic member abuts against the baffle, and the inner end abuts against the abutting part protruding from the outer peripheral surface of the locking member or abuts against the sliding member.

[0027] The aforementioned guide components, especially the through holes on the baffle, provide precise guidance for the movement of the locking component, ensuring smooth and linear movement along a predetermined direction during unlocking and locking, avoiding jamming or deviation. The elastic element is fitted onto the locking component, with one end abutting against the baffle and the other end acting on the abutment or sliding part at the outer end of the locking component. This compact layout ensures direct and efficient force transmission, guaranteeing that the elastic element can reliably drive the locking component to reset and maintain a stable locking force. The aforementioned elastic element is a return spring or an air spring.

[0028] In the aforementioned sliding lock device with anti-fall function, the locking mechanism further includes a push handle, which is located outside the slider and is connected to the pusher.

[0029] The push handle located on the outside of the slider provides users with a clear and convenient operating position. Users can drive the internal pusher to move by pressing the push handle, thereby controlling the unlocking of the locking mechanism. The operation is intuitive and effortless, significantly improving the convenience and comfort of user operation.

[0030] In the aforementioned sliding lock device with anti-fall function, guide wheels are rotatably mounted on both the upper and lower parts of the slider.

[0031] Guide wheels are installed at the top and bottom of the slider to convert the sliding friction between the slider and the umbrella column into rolling friction. This significantly reduces the operating force required for the slider to move on the umbrella column (whether opening the umbrella canopy upwards or controllably closing it downwards), making the movement process lighter, smoother, and quieter, reducing wear, and improving the overall operating feel and service life of the slide lock device.

[0032] Compared with the prior art, the technical effects of this utility model are as follows:

[0033] 1. This utility model integrates a ratchet mechanism and a rotary damper within the slider, along with an anti-fall groove on the umbrella column. When the user pulls the slider downwards to close the umbrella, the anti-fall wheel of the ratchet mechanism tends to rotate counterclockwise under gravity, but is blocked by the pawl and cannot rotate. Its protruding teeth then engage with the anti-fall groove on the umbrella column, forming a mechanical lock that instantly prevents the slider from free-falling. Simultaneously, the rotary damper provides frictional resistance the instant the anti-fall wheel is blocked and during subsequent controlled downward movement. This dual-action (mechanical locking + damping buffer) effectively overcomes the problem of rapid descent due to the weight of the umbrella in existing sliding lock devices, significantly reducing the risk of users' fingers being pinched by the device during umbrella closure due to uncontrolled descent, and greatly improving operational safety.

[0034] 2. In this invention, after the anti-fall wheel's protruding teeth are locked into the anti-fall groove, if the user applies a continuous downward force, this force will overcome the preset frictional torque of the rotary damper, forcing the right side plate fixedly connected to the damper and the entire damper structure to rotate slightly relative to the friction pad (although the anti-fall wheel itself cannot rotate freely counterclockwise due to the pawl, the system as a whole can still move downwards controllably under the user's force). The frictional resistance generated by the damper effectively absorbs the downward kinetic energy of the slider and the umbrella surface, converting it into a controllable and gentle downward movement speed. The user does not need to constantly exert great force against gravity; only a small guiding force is needed to achieve a smooth and slow closing of the umbrella surface. This greatly reduces the difficulty of operation and avoids damage to the sliding lock device itself, the umbrella column, the umbrella ribs, or the umbrella surface caused by excessive falling speed and impact force, significantly improving the stability of the umbrella closing process and the service life of the entire sunshade product.

[0035] 3. The core design of this utility model's ratchet mechanism lies in its unidirectional free characteristic: when the user pushes the slider upwards to unfold the umbrella, the anti-fall wheel tends to rotate clockwise. At this time, the pawl will not obstruct the rotation of the anti-fall wheel, and the convex teeth can smoothly slide through the anti-fall groove. The rotational damper generates almost no resistance to rotation in this direction (or very little resistance). Therefore, the operation of pushing the slider upwards is as smooth and effortless as in the prior art, completely unaffected by the newly added anti-fall structure, ensuring the convenience of umbrella opening operation and achieving the core functional goal of "damping only takes effect when falling, and is unimpeded when pushing upwards". Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0037] Figure 2 This is an overall sectional view of the present invention.

[0038] Figure 3 This is a cross-sectional view of the ratchet mechanism and rotary damper of this utility model.

[0039] Figure 4This is an exploded view of the ratchet mechanism and rotary damper of this utility model. Figure 1 .

[0040] Figure 5 This is an exploded view of the ratchet mechanism and rotary damper of this utility model. Figure 2 .

[0041] Figure 6 This is an exploded structural diagram of the locking mechanism of this utility model.

[0042] Figure 7 This is a schematic diagram of the connection structure between the pusher and the locking component of this utility model.

[0043] In the diagram, 1. Umbrella column; 11. Fall arrest groove; 2. Slider; 21. Guide wheel; 3. Locking mechanism; 31. Pushing component; 311. Wedge groove; 312. Guide surface; 32. Locking component; 33. Sliding component; 34. Elastic component; 35. Guide component; 351. Baffle; 352. Through hole; 36. Push handle; 4. Ratchet mechanism; 41. Fall arrest wheel; 411. Raised tooth; 412. Ratchet-shaped groove; 42. Rotating shaft; 421. Connecting part; 43. Sleeve; 431. Mounting boss; 432. Pawl; 433. Spring; 434. Raised ring; 5. Rotation damper; 51. Left side plate; 52. Right side plate; 53. Friction pad; 54. Fastening bolt; 6. Mounting plate. Detailed Implementation

[0044] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0045] This anti-fall sliding lock device includes an umbrella column 1 and a slider 2 fitted onto the umbrella column 1. The umbrella column 1 has several anti-fall grooves 11 spaced along its axial direction. The slider 2 contains a locking mechanism 3, a ratchet mechanism 4, and a rotational damper 5. The locking mechanism 3 can be machined with the anti-fall grooves to fix the slider 2 to the umbrella column 1. One end of the rotational damper 5 is fixedly connected to the inner wall of the slider 2, and the other end is fixedly connected to the ratchet mechanism 4. The ratchet mechanism 4 includes an anti-fall wheel 41 with protruding teeth 411 that can be inserted into the anti-fall grooves 11. The anti-fall wheel 41 of the ratchet mechanism 4 can rotate smoothly clockwise but cannot rotate counterclockwise. This sliding lock device, by setting up the anti-fall grooves 11, the ratchet mechanism 4, and the rotational damper 5, and utilizing the unidirectional rotation characteristic of the ratchet mechanism 4 (smooth clockwise rotation, locked counterclockwise rotation), effectively prevents the slider 2 from rapidly falling due to the weight of the umbrella surface when the user pulls down to close the umbrella canopy. Specifically, when the slider 2 tends to fall, the counterclockwise rotation of the anti-fall wheel 41 is prevented, and its protrusion 411 will embed into the anti-fall groove 11 of the umbrella column 1 to form a mechanical lock. At the same time, the rotation damper 5 provides frictional resistance to absorb the kinetic energy of the fall and realize the slow descent of the slider 2. This significantly improves the safety of the umbrella closing operation, avoids the risk of pinching hands caused by rapid falling and the impact damage to the umbrella components, and ensures that when the slider 2 is pushed upward to open the umbrella surface, the anti-fall wheel 41 can rotate freely clockwise, and the protrusion 411 smoothly slides through the anti-fall groove 11, so the operation is still smooth and unobstructed.

[0046] like Figure 3-5 As shown, the rotary damper 5 includes a left side plate 51, a right side plate 52, a friction pad 53, and a fastening bolt 54. The friction pad 53 is positioned between the left side plate 51 and the right side plate 52. The fastening bolt 54 passes through the left side plate 51, the friction pad 53, and the right side plate 52, and fixes all three to the mounting plate 6 inside the slider 2. The right side plate 52 is fixedly connected to the ratchet mechanism 4. The rotary damper 5 uses a structure where the friction pad 53 is clamped between the left side plate 51 and the right side plate 52, and is fixed to the mounting plate 6 of the slider 2 by the fastening bolt 54. This design is simple, compact, and provides a stable installation. By adjusting the tightness of the fastening bolt 54 or replacing the friction pad 53 with a different coefficient of friction, the magnitude of the friction torque generated by the rotary damper 5 can be conveniently and accurately preset and adjusted, thereby adapting to the needs of umbrellas of different specifications and weights for descent buffering resistance, and improving the versatility and flexibility of the sliding lock device.

[0047] like Figure 3-5As shown, the ratchet mechanism 4 includes a fall arrester 41, a rotating shaft 42, and a sleeve 43. A connecting part 421 is fixedly connected to the left side of the rotating shaft 42, and the connecting part 421 is fixedly connected to the rotation damper 5. The fall arrester 41 is sleeved on the rotating shaft 42 and can rotate relative to the rotating shaft 42. A ratchet-shaped groove 412 is provided on the right side of the fall arrester 41. The sleeve 43 is sleeved on the rotating shaft 42 and circumferentially fixed to the rotating shaft 42. A pawl 432 is provided on the left side of the sleeve 43, which engages with the ratchet-shaped groove 412. The pawl 432 can extend into the ratchet-shaped groove 412 and prevent the fall arrester 41 from rotating counterclockwise relative to the sleeve 43. The left side of the sleeve 43 is formed with a... A mounting boss 431 is inserted into the ratchet-shaped groove 412. A pawl 432 is rotatably mounted on the mounting boss 431. A spring 433 is provided on the mounting boss 431 to drive the pawl 432 to rotate outward. The pawl 432 can cooperate with the inner groove wall of the ratchet-shaped groove 412 to prevent the anti-fall wheel 41 from rotating counterclockwise. There are at least two pawls 432, which are arranged in a circular array around the central axis of the sleeve 43. An annular protrusion 434 is provided on the outer circumferential surface of the sleeve 43. The protrusion 434 is located on the right side of the mounting boss 431. The left side of the protrusion 434 can abut against the right side of the anti-fall wheel 41 and close the ratchet-shaped groove 412.

[0048] The ratchet mechanism 4, through the ratchet-shaped groove 412 on the anti-fall wheel 41 engaging with the pawl 432 on the sleeve 43, achieves a reliable counter-clockwise locking function. The connecting part 421 fixes the rotary damper 5 to the rotating shaft 42, ensuring the effective transmission of damping torque. The anti-fall wheel 41 can rotate relative to the rotating shaft 42, so that when the slider 2 is pushed upward (the anti-fall wheel 41 rotates clockwise), the sleeve 43 and its pawl 432 will not obstruct the upward push operation, ensuring smoothness. This structure is clearly designed, reliable in operation, and achieves... One-way locking; This sliding lock device has a mounting boss 431 on the sleeve 43, on which a pawl 432 driven by a spring 433 is rotatably mounted. This ensures that the pawl 432 always has an outward swing tendency under the action of the spring 433, so that it can reliably and timely extend into the ratchet-shaped groove 412 of the anti-fall wheel 41. When the anti-fall wheel 41 attempts to rotate counterclockwise, the end of the pawl 432 will lock with the inner wall of the groove, forming a rigid block, effectively preventing the anti-fall wheel 41 and the slider 2 from falling. The preload design of sleeve 43 ensures the sensitivity and reliability of the pawl 432's operation; the arrangement of at least two pawls 432 in a circular array significantly improves the load-bearing capacity and locking reliability of the ratchet mechanism 4. Multiple pawls 432 can share the impact force of a fall, and even if a single pawl 432 malfunctions or wears, the others can still provide effective locking, enhancing the redundancy and durability of the mechanism and ensuring the long-term stable operation of the anti-fall function; the convex ring 434 on sleeve 43 connects the pawl 432 with the anti-fall function. When the ratchet-shaped groove 412 of the drop wheel 41 is engaged, its left side can abut against the right side of the anti-fall wheel 41. This design provides auxiliary support in the locked state, enhancing structural stability. More importantly, it relatively seals off the ratchet engagement area (ratchet-shaped groove 412), effectively preventing external debris such as dust, sand, and moisture from entering the ratchet engagement surface. This prevents mechanism failure due to contamination, corrosion, or jamming, greatly improving the reliability and service life of the ratchet mechanism 4 in complex outdoor environments.

[0049] like Figure 6 and Figure 7As shown, the locking mechanism 3 includes a pusher 31, a locking member 32, a sliding member 33, an elastic member 34, a guide member 35, and a push handle 36. The pusher 31 has a wedge-shaped groove 311, and two guide surfaces 312 are provided on the side of the wedge-shaped groove 311 near the umbrella column 1. The sides of the two guide surfaces 312 that are close together are inclined towards the umbrella column 1. The locking member 32 is perpendicular to the pushing direction of the pusher 31, and its inner end can slide into the anti-fall groove 11. The sliding member 33 is fixedly connected to the locking member 32, and its end is located inside the wedge-shaped groove 311 and slides against the guide surface 312. The elastic member 34 is located at the outer end of the locking member 32, and its elasticity... The component 34 can drive the locking component 32 to move towards the umbrella column 1; the guide component 35 is fixedly connected to the main body of the slider 2, and the pusher 31 can move up and down along the guide component 35 under the push of the user. A baffle 351 is provided on the side of the guide component 35 away from the umbrella column 1. A through hole 352 is provided on the baffle 351. The outer end of the locking component 32 can pass through the through hole 352 and move relative to the baffle 351. The elastic component 34 is sleeved on the locking component 32. The outer end of the elastic component 34 abuts against the baffle 351, and the inner end abuts against the abutting part protruding from the outer peripheral surface of the locking component 32 or the inner end abuts against the slider 33. The push handle 36 is located outside the slider 2 and is connected to the pusher 31.

[0050] This sliding lock device utilizes the wedge-shaped groove 311 and inclined guide surface 312 on the pusher 31 to cooperate with the sliding member 33. The user only needs to push the push handle 36 once (moving the pusher 31) to drive the sliding member 33 and locking member 32 through the guide surface 312, overcoming the elastic force of the elastic member 34. This causes the inner end of the locking member 32 to disengage from the anti-fall groove 11 of the umbrella column 1, achieving unlocking. After releasing the handle, the locking member 32 automatically resets and re-inserts into the anti-fall groove 11 under the action of the elastic member 34, completing the locking process. This design continues the advantage of unlocking / locking in a single action, offering simple and quick operation, a good user experience, and is compatible with [other technologies / systems]. The patented anti-fall structure is compatible; the aforementioned guide member 35, especially the through hole 352 on the baffle 351, provides precise guidance for the movement of the locking member 32, ensuring that the locking member 32 moves smoothly and linearly in a predetermined direction during unlocking and locking, avoiding jamming or deviation. The elastic member 34 is sleeved on the locking member 32, with one end abutting against the baffle 351 and the other end acting on the abutment part or sliding member 33 at the outer end of the locking member 32. This layout is compact, and the force transmission is direct and efficient, ensuring that the elastic member 34 can reliably drive the locking member 32 to reset and maintain a stable locking force. The aforementioned elastic member 34 is a reset spring 433 or an air spring 433; the push handle 36 located on the outside of the slider 2 provides the user with a clear and convenient operating position. The user can drive the internal pushing member 31 to move by pressing the push handle 36, thereby controlling the unlocking of the locking mechanism 3. The operation is intuitive and effortless, significantly improving the convenience and comfort of the user's operation.

[0051] Preferably, guide wheels 21 are rotatably mounted on both the upper and lower parts of the slider 2. Mounting guide wheels 21 on the upper and lower parts of the slider 2 transforms the sliding friction between the slider 2 and the umbrella column 1 into rolling friction. This significantly reduces the operating force required for the slider 2 to move on the umbrella column 1 (whether opening the umbrella canopy upwards or controllably closing it downwards), making the movement process lighter, smoother, and quieter, reducing wear, and improving the overall operating feel and service life of the sliding lock device.

[0052] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.

Claims

1. A sliding lock device with anti-fall function, comprising an umbrella post (1) and a slider (2) sleeved on the umbrella post (1), characterized in that: The umbrella column (1) is provided with several anti-fall grooves (11) spaced apart along its axial direction. The slider (2) is provided with a locking mechanism (3), a ratchet mechanism (4) and a rotation damper (5). The locking mechanism (3) can be machined with the anti-fall groove to fix the slider (2) and the umbrella column (1). One end of the rotation damper (5) is fixedly connected to the inner wall of the slider (2) and the other end is fixedly connected to the ratchet mechanism (4). The anti-fall wheel (41) of the ratchet mechanism (4) is provided with a protruding tooth (411) that can be inserted into the anti-fall groove (11). The anti-fall wheel (41) of the ratchet mechanism (4) can rotate smoothly clockwise and cannot rotate counterclockwise.

2. The sliding lock device with anti-fall function according to claim 1, characterized in that: The rotary damper (5) includes a left side plate (51), a right side plate (52), a friction pad (53), and a fastening bolt (54). The friction pad (53) is disposed between the left side plate (51) and the right side plate (52). The fastening bolt (54) passes through the left side plate (51), the friction pad (53), and the right side plate (52), and fixes the three to the mounting plate (6) inside the slider (2). The right side plate (52) is fixedly connected to the ratchet mechanism (4).

3. A sliding lock device with anti-fall function according to claim 1, characterized in that: The ratchet mechanism (4) includes a fall arrester (41), a rotating shaft (42), and a sleeve (43). A connecting part (421) is fixedly connected to the left side of the rotating shaft (42), and the connecting part (421) is fixedly connected to the rotation damper (5). The fall arrester (41) is sleeved on the rotating shaft (42) and can rotate relative to the rotating shaft (42). A ratchet-shaped groove (412) is provided on the right side of the fall arrester (41). The sleeve (43) is sleeved on the rotating shaft (42) and is circumferentially fixed to the rotating shaft (42). A pawl (432) that cooperates with the ratchet-shaped groove (412) is provided on the left side of the sleeve (43). The pawl (432) can extend into the ratchet-shaped groove (412) and prevent the fall arrester (41) from rotating counterclockwise relative to the sleeve (43).

4. A sliding lock device with anti-fall function according to claim 3, characterized in that: The left side of the sleeve (43) is formed with a mounting boss (431) that can be inserted into the ratchet-shaped groove (412). The pawl (432) is rotatably mounted on the mounting boss (431). The mounting boss (431) is provided with a spring (433) that drives the pawl (432) to rotate outward. The pawl (432) can cooperate with the inner groove wall of the ratchet-shaped groove (412) to prevent the anti-fall wheel (41) from rotating counterclockwise.

5. A sliding lock device with anti-fall function according to claim 4, characterized in that: There are at least two pawls (432), and the pawls (432) are arranged in a ring array with the central axis of the sleeve (43) as the center.

6. A sliding lock device with anti-fall function according to claim 4, characterized in that: The sleeve (43) has an annular protrusion (434) on its outer circumferential surface. The protrusion (434) is located on the right side of the mounting boss (431). The left side of the protrusion (434) can abut against the right side of the anti-fall wheel (41) and close the ratchet-shaped groove (412).

7. A sliding lock device with anti-fall function according to claim 1, characterized in that: Guide wheels (21) are rotatably mounted on both the upper and lower parts of the slider (2).

8. A sliding lock device with anti-fall function according to any one of claims 1-7, characterized in that: The locking mechanism (3) includes a pusher (31), a locking member (32), a sliding member (33), and an elastic member (34). The pusher (31) is provided with a wedge-shaped groove (311). The wedge-shaped groove (311) has two guide surfaces (312) on the side near the umbrella column (1). The two guide surfaces (312) are inclined and close to the umbrella column (1) on the side that is close to each other. The locking member (32) is perpendicular to the pushing direction of the pusher (31). The inner end of the locking member (32) can be slidably inserted into the anti-fall groove (11). The sliding member (33) is fixedly connected to the locking member (32). The end of the sliding member (33) is located inside the wedge-shaped groove (311) and slides against the guide surface (312). The elastic member (34) is provided at the outer end of the locking member (32). The elastic member (34) can drive the locking member (32) to move towards the umbrella column (1).

9. A sliding lock device with anti-fall function according to claim 8, characterized in that: The locking mechanism (3) further includes a guide (35), which is fixedly connected to the main body of the slider (2). The pusher (31) can move up and down along the guide (35) under the push of the user. A baffle (351) is provided on the side of the guide (35) away from the umbrella column (1). A through hole (352) is provided on the baffle (351). The outer end of the locking member (32) can pass through the through hole (352) and move relative to the baffle (351). The elastic member (34) is sleeved on the locking member (32). The outer end of the elastic member (34) abuts against the baffle (351), and the inner end abuts against the abutting part protruding from the outer circumference of the locking member (32) or the inner end abuts against the slider (33).

10. A sliding lock device with anti-fall function according to claim 9, characterized in that: The locking mechanism (3) also includes a push handle (36), which is located outside the slider (2) and is connected to the push member (31).

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