A portable hook suitable for a campus inspection robot

Abstract

A portable hook suitable for campus inspection robots belongs to the field of daily necessities and robotic automation equipment technology. It consists of an upper suspension section, a lower sliding section, a locking sleeve, a locking ball bearing, and a key ring mounting screw. The upper suspension section is a one-piece structure with a sliding guide groove and a ball bearing fitting groove. The lower sliding section is integrated with a rod-shaped connecting part and has a ball bearing locking groove. The locking sleeve is a stepped cylindrical shape that movably fits on the outside of the upper suspension section. The locking ball bearing can move radially within the groove. The key ring mounting screw is threadedly connected to the lower suspension section. This invention uses a purely mechanical ball bearing double locking structure, achieving clamping and release through the sliding of the locking sleeve. It eliminates easily damaged parts such as springs and buckles, ensuring a secure lock and preventing accidental opening. Operation only requires sliding the sleeve, making it simple and efficient. Its regular shape and reliable rigidity make it suitable for automated robotic grasping, clamping, and transport, meeting the daily carrying and automated transportation needs of keys and small pendants.

Description

Technical Field

[0001] This invention relates to the field of daily necessities and campus robot automation equipment technology, and in particular to a convenient hook suitable for campus inspection robots. It is suitable for the daily hanging and carrying of items such as campus inspection keys, inspection tags, and small tools. At the same time, it can work with campus inspection robots to complete the automated grasping, transfer, positioning, storage and return management of keys and tools. It is widely applicable to campus intelligent security, intelligent inspection and robot key management systems. Background Technology

[0002] Campus inspection robots are commonly used for building equipment inspection, access control, and the transfer of small tools and accessories. During operation, they need to stably mount items such as keys, inspection tags, and small tools, placing stringent requirements on the automatic gripping, locking, and mechanical compatibility of the mounting structure. Traditional hooks are mostly spring-loaded clips, which are prone to wear, fatigue failure, and accidental detachment after long-term, high-frequency use. Furthermore, their irregular shapes and poor positioning make them unsuitable for the precise gripping, transfer, and return of items required for automated operations by robots, severely impacting the overall efficiency of unmanned campus inspections. To address these pain points, a dedicated, portable mounting device has been developed that is compatible with inspection robots, features purely mechanical stable locking, strong anti-detachment capabilities, and is suitable for automated operation. Summary of the Invention

[0003] In view of the above-mentioned problems of the prior art, this application provides a convenient hook suitable for campus inspection robots. Based on a pure mechanical ball double locking structure, it achieves a robot-friendly appearance, stable anti-detachment, no easily damaged parts, and convenient opening and closing. It can meet the needs of campus inspection robots for automated grasping, clamping, transfer and positioning storage of keys, inspection tags and small tools, while also taking into account the convenience of daily use by humans.

[0004] To achieve the above objectives, this application provides a portable hook suitable for campus inspection robots, comprising: an upper suspension part, a lower sliding part, a locking sleeve, a locking ball, and a key ring mounting screw; the upper suspension part is a one-piece structure, with a sliding guide groove and a ball fitting groove at its lower end, and a threaded mounting hole at its bottom end; the lower sliding part is a one-piece structure, with a rod-shaped connecting part integrally formed at its lower end, the rod-shaped connecting part extending into the lower end of the upper suspension part and fitting with the sliding guide groove, and a ball fitting on the inner wall of the lower sliding part. The locking groove; the ball locking groove and the ball adapter groove of the upper part of the suspension are coaxially engaged in the closed state. The locking ball is set inside the ball adapter groove of the upper part of the suspension and can move radially within the ball adapter groove; the locking sleeve is movably sleeved on the outside of the upper part of the suspension. It is a stepped cylindrical structure with a small diameter pressing section at the top and a large diameter releasing section at the bottom. The inner wall of the small diameter pressing section can press against the locking ball; the key ring mounting screw is threadedly connected to the threaded mounting hole at the bottom of the upper part of the suspension for fixing the key ring.

[0005] Preferably, the ball-fitting groove is a concave arc-shaped structure with a depth greater than the radius of the locking ball, and the opening position of the ball-fitting groove corresponds coaxially with the ball-locking groove in the closed state. With this structure, the concave arc-shaped ball-fitting groove provides sufficient radial movement space for the locking ball, ensuring its flexible movement; simultaneously, in the closed state, the coaxial correspondence between the ball-fitting groove and the ball-locking groove ensures that the locking ball can be simultaneously embedded in both grooves, forming a stable double mechanical limit, preventing locking failure, and further improving the locking stability of the hook.

[0006] Preferably, the groove size of the ball locking groove is adapted to the outer diameter of the locking ball, and in the closed state, part of the locking ball is embedded inside the ball locking groove. With the above structure, the ball locking groove, whose groove size is adapted to the outer diameter of the locking ball, allows part of the locking ball to be embedded, effectively limiting the sliding lower part and preventing it from sliding axially along the upper suspension part, thus ensuring the hook's closing locking effect. Simultaneously, the partial embedding method avoids jamming caused by excessive embedding of the locking ball, ensuring smooth hook opening and closing operations.

[0007] Preferably, the inner wall of the small-diameter pressing section is a smooth arc-shaped surface, and its inner diameter is adapted to the maximum distance from the outer wall of the upper part of the suspension to the outer side of the locking ball, which can form a uniform circumferential pressure on the locking ball. With the above structure, the smooth arc-shaped small-diameter pressing section can form a close-fitting pressure with the outer surface of the locking ball. The uniform circumferential pressure can avoid jamming, wear or displacement of the locking ball caused by local force, extend the service life of the locking ball, and at the same time ensure a stable pressing effect on the locking ball, ensuring the working stability of the locking structure.

[0008] Preferably, the sliding guide groove is an elongated through groove, and the width of the sliding guide groove is adapted to the outer guide protrusion of the rod-shaped connecting part to prevent the lower sliding part from rotating circumferentially. With the above structure, the sliding guide groove of the elongated through groove cooperates with the outer guide protrusion of the rod-shaped connecting part to achieve circumferential limiting of the lower sliding part, strictly restricting the movement direction of the lower sliding part to the axial direction, preventing circumferential rotation of the lower sliding part during sliding, ensuring that the ball locking groove and the ball matching groove are always in a coaxial corresponding position, ensuring the normal operation of the locking mechanism, and avoiding locking failure due to positional misalignment.

[0009] Preferably, there are two locking balls, and the two locking balls are evenly distributed in a ring along the central axis of the upper part of the suspension. With this structure, the two locking balls evenly distributed in a ring along the central axis of the upper part of the suspension ensure that the locking force is evenly distributed circumferentially on the upper part of the suspension, preventing axial displacement of the sliding lower part due to unilateral force, and improving the overall stability of the locking structure. At the same time, the synchronous pressing and limiting of the double balls further ensures the locking effect of the hook and effectively prevents accidental opening.

[0010] Preferably, the key ring mounting screw and the threaded mounting hole have a precision fine thread engagement, and the head of the key ring mounting screw has anti-slip grooves. With this structure, the precision fine thread engagement between the key ring mounting screw and the threaded mounting hole ensures a more secure connection between the screw and the upper part of the suspension, preventing the screw from loosening or falling off during use and causing the key ring to drop. The anti-slip grooves on the screw head increase friction during tightening, making it easy for users to manually install and remove the screw without the need for additional tools, enabling quick replacement and secure fixing of the key ring. This convenient operation meets user needs.

[0011] Preferably, a gap is left between the inner wall of the large-diameter release section and the outer wall of the upper part of the suspension, and the width of the gap is greater than the radial movement distance of the locking ball. With the above structure, the gap between the large-diameter release section and the outer wall of the upper part of the suspension provides sufficient radial movement space for the locking ball. When the locking sleeve slides upward axially so that the large-diameter release section is directly opposite the locking ball, the circumferential pressure on the locking ball can be completely released, allowing the locking ball to move freely radially outward and disengage from the ball locking groove, smoothly releasing the axial restriction on the lower part of the sliding section, avoiding jamming, and ensuring the smoothness of the hook opening operation.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. With a regular shape, rigid integral structure, and no exposed elastic parts, it facilitates the precise grasping, clamping, transfer, and positioning of campus inspection robots, meeting the needs of unmanned operation throughout the entire process of campus security and equipment inspection.

[0014] 2. It adopts dual mechanical limit with ball bearings, eliminating easily damaged parts such as buckles and springs. It is not affected by metal fatigue, rust, or wear, and is not prone to failure after long-term high-frequency use, making it suitable for continuous robot operation.

[0015] 3. When closed, the locking ball is simultaneously embedded in the double groove, and the locking force is uniform, which can resist pulling, shaking and collision, ensuring that the key and inspection tools do not fall off during the robot's transfer process.

[0016] 4. Opening and closing can be achieved simply by sliding the locking sleeve axially. The action is simple and the stroke is stable, which makes it easy for the robot mechanism to assist in unlocking and locking without complicated actions.

[0017] 5. The sliding guide groove cooperates with the rod-shaped connecting part to prevent the lower part from rotating, ensuring that the robot's posture is consistent and the positioning is accurate when grasping and returning to its original position.

[0018] 6. Precision fine threads and anti-slip screws allow for quick and easy manual replacement of inspection keys and labels, ensuring a secure and stable fit while maintaining ease of use for manual operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a portable hook suitable for campus inspection robots according to this application; Figure 2 This is a schematic diagram of the closed state structure of a portable hook suitable for campus inspection robots according to this application; Figure 3 This is a schematic diagram of the open state structure of a portable hook suitable for campus inspection robots according to this application; Figure 4 This is a schematic diagram of the structure of the upper part of the suspension in this application; Figure 5 This is a schematic diagram of the sliding lower part in this application.

[0021] The components are: 1. Upper suspension part; 2. Lower sliding part; 3. Locking sleeve; 4. Locking ball; 5. Key ring mounting screw; 6. Ball adapter groove; 7. Rod-shaped connecting part; 8. Sliding guide groove; 9. Ball locking groove; 10. Small diameter pressing section; 11. Large diameter release section; 12. Threaded mounting hole. Detailed Implementation

[0023] Below, with reference to the accompanying drawings, an exemplary embodiment of a portable hook suitable for campus inspection robots according to this application will be described.

[0024] This application provides a convenient hook suitable for campus inspection robots, comprising: an upper suspension part 1, a lower sliding part 2, a locking sleeve 3, a locking ball 4, and a key ring mounting screw 5; the upper suspension part 1 is an integral structure, with a sliding guide groove 8 and a ball matching groove 6 at its lower end, and a threaded mounting hole 12 at the bottom end of the upper suspension part 1; the lower sliding part 2 is an integral structure, with a rod-shaped connecting part 7 integrally formed at its lower end, the rod-shaped connecting part 7 extending into the lower end of the upper suspension part 1 and matching the sliding guide groove 8, and a ball locking groove 9 on the inner wall of the lower sliding part 2; The ball locking groove 9 and the ball fitting groove 6 of the upper suspension 1 are used coaxially in the closed state. The locking ball 4 is located inside the ball fitting groove 6 of the upper suspension 1 and can move radially within the ball fitting groove 6. The locking sleeve 3 is movably sleeved on the outside of the upper suspension 1 and has a stepped cylindrical structure with a small-diameter pressing section 10 at the top and a large-diameter releasing section 11 at the bottom. The inner wall of the small-diameter pressing section 10 can press against the locking ball 4. The key ring mounting screw 5 is threadedly connected to the threaded mounting hole 12 at the bottom of the upper suspension 1 to fix the key ring.

[0025] Furthermore, the ball-fitting groove 6 is a concave arc-shaped structure with a depth greater than the radius of the locking ball 4, and the opening position of the ball-fitting groove 6 corresponds coaxially with the ball-locking groove 9 in the closed state. Thus, the concave arc-shaped structure provides ample radial movement space for the locking ball 4, ensuring its flexible movement; simultaneously, its coaxial alignment with the ball-locking groove 9 in the closed state ensures that the locking ball 4 is simultaneously embedded in both grooves, forming a stable double mechanical limit, further improving locking stability and preventing locking failure.

[0026] Furthermore, the groove size of the ball locking groove 9 is adapted to the outer diameter of the locking ball 4. In the closed state, part of the ball of the locking ball 4 is embedded inside the ball locking groove 9. Thus, the adapted groove size allows the locking ball 4 to effectively limit the sliding lower part 2 axially, preventing the sliding lower part 2 from sliding axially along the upper suspension part 1, ensuring the closing locking effect of the hook; at the same time, the partial embedding method can avoid the locking ball 4 from getting stuck due to being embedded too deeply, ensuring the smoothness of the hook opening and closing operation.

[0027] Furthermore, the inner wall of the small-diameter pressing section 10 is a smooth arc-shaped surface, and its inner diameter is adapted to the maximum distance from the outer wall of the upper suspension 1 to the outer side of the locking ball 4, which can form a uniform circumferential pressure on the locking ball 4. Thus, the smooth arc-shaped small-diameter pressing section 10 forms a close-fitting pressure with the outer surface of the locking ball 4. The uniform circumferential pressure avoids jamming, wear, or displacement of the locking ball 4 due to localized force, extends the service life of the locking ball 4, and ensures a stable pressing effect on the locking ball 4, thus ensuring the working stability of the locking structure.

[0028] Furthermore, the sliding guide groove 8 is an elongated through groove, and the width of the sliding guide groove 8 is adapted to the outer guide protrusion of the rod-shaped connecting part 7 to prevent the sliding lower part 2 from rotating circumferentially. Thus, the cooperation between the sliding guide groove 8 and the outer guide protrusion of the rod-shaped connecting part 7 achieves circumferential limiting of the sliding lower part 2, strictly restricting the movement direction of the sliding lower part 2 to the axial direction, preventing circumferential rotation of the sliding lower part 2 during sliding, ensuring that the ball locking groove 9 and the ball matching groove 6 are always in a coaxial corresponding position, ensuring the normal operation of the locking mechanism, and avoiding locking failure due to positional misalignment.

[0029] Furthermore, there are two locking balls 4, and these two locking balls 4 are evenly distributed in a ring along the central axis of the upper suspension 1. Thus, the two evenly distributed locking balls 4 ensure that the locking force is evenly distributed circumferentially on the upper suspension 1, preventing axial displacement of the lower sliding part 2 due to unilateral force, and improving the overall stability of the locking structure. Simultaneously, the synchronous pressing and limiting of the double balls further ensures the locking effect of the hook, effectively preventing accidental opening.

[0030] Furthermore, the key ring mounting screw 5 and the threaded mounting hole 12 are fitted with a precision fine thread, and the head of the key ring mounting screw 5 is provided with anti-slip texture. Thus, the precision fine thread fit makes the connection between the key ring mounting screw 5 and the upper suspension part 1 more secure, preventing the screw from loosening or falling off during use and causing the key ring to fall off; the anti-slip texture on the screw head increases the turning friction, making it easy for users to manually install and remove the screw, achieving quick replacement and secure fixation of the key ring without the need for additional tools, making operation convenient and meeting user needs.

[0031] Furthermore, a gap is left between the inner wall of the large-diameter release section 11 and the outer wall of the upper suspension part 1, and the width of the gap is greater than the radial movement distance of the locking ball 4. This sufficient gap provides the locking ball 4 with free radial movement space. When the locking sleeve 3 slides axially upwards so that the large-diameter release section 11 is directly opposite the locking ball 4, the circumferential pressure on the locking ball 4 can be completely released, allowing the locking ball 4 to move smoothly radially outwards and disengage from the ball locking groove 9, releasing the axial restriction on the lower sliding part 2, avoiding jamming, and ensuring smooth hook opening operation.

[0032] Below, with reference to the accompanying drawings, a detailed description of the specific structure and usage of a portable hook suitable for campus inspection robots according to this application will be provided in a specific embodiment.

[0033] It should be noted that a convenient hook for use with campus inspection robots includes the following steps:

[0034] Closed locking state: The locking sleeve 3 is in the initial position of natural downward sliding, with its small diameter pressing section 10 facing the outer side of the locking ball 4. The inner wall of the small diameter pressing section 10 forms a uniform circumferential pressure on the locking ball 4, pressing the locking ball 4 inward. This causes the locking ball 4 to simultaneously embed into the ball fitting groove 6 of the upper part 1 and the ball locking groove 9 of the lower part 2. In the closed state, 1 / 3 to 1 / 2 of the ball of the locking ball 4 is embedded in the ball locking groove 9. At this time, the locking ball 4 forms a stable axial limit on the lower part 2, preventing the lower part 2 from sliding axially along the upper part 1, thus achieving the closed locking of the hook. This allows for the stable hanging of items such as keys and small pendants. The robot can perform stable grasping by clamping the upper part 1. In the closed locking state, the key will not fall off during robot transportation, meeting the needs of automated key transfer.

[0035] Opening the active state: Push the locking sleeve 3 upward along the axial direction so that the large diameter release section 11 of the locking sleeve 3 is directly opposite the outside of the locking ball 4. At this time, the circumferential pressure of the small diameter pressing section 10 on the locking ball 4 is completely released. The locking ball 4 can move radially outward in the ball fitting groove 6 of the upper suspension 1, disengaging from the ball locking groove 9 of the lower sliding part 2, and releasing the axial limit on the lower sliding part 2. Under its own gravity, the lower sliding part 2 drives the rod-shaped connecting part 7 to slide axially down along the sliding guide groove 8 of the upper suspension 1 until it slides to the limit position. At this time, the hook is in the open state, and items such as keys and pendants can be picked up and put down.

[0036] Reset and lock: Push the lower sliding part 2 upward along the axis, causing the rod-shaped connecting part 7 to move upward along the sliding guide groove 8, so that the ball locking groove 9 of the lower sliding part 2 and the ball matching groove 6 of the upper suspension part 1 are aligned coaxially again. Then slide the locking sleeve 3 downward along the axis, so that the small diameter pressing section 10 is aligned again and presses against the locking ball 4, pressing the locking ball 4 until it is simultaneously embedded in the ball matching groove 6 and the ball locking groove 9, completing the axial limit reset of the lower sliding part 2, realizing the relocking of the hook, which makes it easy for the robot to put the hook with the key back into the designated compartment, realizing the automated management of campus inspection keys.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A portable hook suitable for campus inspection robots, characterized in that, include: The structure comprises an upper suspension part (1), a lower sliding part (2), a locking sleeve (3), a locking ball (4), and a key ring mounting screw (5). The upper suspension part (1) is an integral structure with a sliding guide groove (8) and a ball fitting groove (6) at its lower end. The bottom end of the upper suspension part (1) has a threaded mounting hole (12). The lower sliding part (2) is an integral structure with a rod-shaped connecting part (7) at its lower end. The rod-shaped connecting part (7) extends into the lower end of the upper suspension part (1) and is fitted with the sliding guide groove (8). The rod-shaped connecting part (7) has a ball locking groove (9). The ball locking groove (9) and the ball fitting groove (6) of the upper suspension part (1) are coaxially engaged in the closed state. The ball (4) is located inside the ball fitting groove (6) of the upper part of the suspension (1) and can move radially within the ball fitting groove (6); the locking sleeve (3) is movably sleeved on the outside of the upper part of the suspension (1) and is a stepped cylindrical structure with a small diameter pressing section (10) at the top and a large diameter releasing section (11) at the bottom. The inner wall of the small diameter pressing section (10) can press against the locking ball (4), and the inner diameter of the large diameter releasing section (11) is larger than that of the small diameter pressing section (10), and a gap is formed between its inner wall and the outer wall of the upper part of the suspension (1) to allow the locking ball (4) to move radially outward; the key ring mounting screw (5) is threadedly connected to the threaded mounting hole (12) at the bottom of the upper part of the suspension (1) for fixing the key ring.

2. The portable hook for campus inspection robots according to claim 1, characterized in that, The groove size of the ball locking groove (9) is adapted to the outer diameter of the locking ball (4). In the closed state, 1 / 3 of the ball of the locking ball (4) is embedded in the interior of the ball locking groove (9).

3. A portable hook suitable for campus inspection robots according to claim 1, characterized in that, The inner wall of the small-diameter pressing section (10) is a smooth arc surface, and its inner diameter is adapted to the maximum distance from the outer wall of the upper suspension part (1) to the outer side of the locking ball (4), so as to form a uniform circumferential pressure on the locking ball (4).

4. A portable hook suitable for campus inspection robots according to claim 1, characterized in that, The locking sleeve (3) can automatically slide down to the locking position under the action of gravity.

5. A portable hook suitable for campus inspection robots according to claim 1, characterized in that, The width of the sliding guide groove (8) is adapted to the corner of the rod-shaped connecting part (7) to prevent the sliding lower part (2) from rotating circumferentially.

6. A portable hook suitable for campus inspection robots according to claim 1, characterized in that, The number of locking balls (4) is 2, and the 2 locking balls (4) are evenly distributed in a ring along the central axis of the upper suspension (1).

7. A portable hook for campus inspection robots according to claim 1, characterized in that, The key ring mounting screw (5) and the threaded mounting hole (12) are fitted with a precision fine thread, and the head of the key ring mounting screw (5) is provided with anti-slip texture.

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