Safety hook with weight recognition function
Patent Information
- Application Number
- CN202420334106.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-02-22
AI Technical Summary
[0003]本实用新型的目的是针对现有技术的不足之处，提供一种具有重量识别的安全挂钩，通过套筒、压缩弹簧和警示线结构配合结构实现对货物进行自动检测且具有警示的功能，解决无法对货物重量进行自动检测的问题
[0013](1)本实用新型为了保证绳索在使用时避免出现超过绳索的受力极限出现断裂的情况，因此在套筒的上侧设置有弹簧件，弹簧的弹性极限强度设置为与绳索所能承受的极限相同，为了起到警示作用在套筒的侧面上设置有警示线，所述警示线会随着套筒的移动而移动，当警示线移动至观察孔的位置时，能够清楚的从观察孔处观察到警示线，从而起到警示使用者此时的绳索已经到达极限强度，切勿继续增加重量出现施工事故，大大提高了安全性，其中警示线的颜色设置成醒目的红色或黄色，当然的也可任意设置颜色只要能起到警示效果即可，当然的报警装置也可采用直线电位器的、plc控制器、以及警示灯相电连的方式进行警报，当直线电位器检测到压缩弹簧被压缩的极限位置时，警示灯开始闪烁从而起到警示作用，直线电位器和plc设置在盖板内部，警示灯设置在盖板外部。
Smart Images
Figure CN223201438U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hooks, in particular to a safety hook with weight recognition function. Background Art
[0002] A hook is a device that connects and fixes suspended objects through its own connection and suspends them in the air. In daily life, hooks have become a very practical tool in the transportation process. However, when suspending at high altitudes, they cannot automatically detect the weight of the goods and have no warning function. The ropes often break due to excessive weight, posing a huge safety hazard. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of the existing technology and provide a safety hook with weight recognition, which realizes automatic detection of goods and has a warning function through the coordinated structure of a sleeve, a compression spring and a warning line structure, thereby solving the problem that the weight of goods cannot be automatically detected.
[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a safety hook with weight recognition, comprising a first cover plate and a second cover plate that are interlocked with each other, a self-locking disk arranged between the first cover plate and the second cover plate, a rope overlapped on the self-locking disk, and a hook arranged between the first cover plate and the second cover plate, the hook comprising a hook head connected to a hook rod on the lower side of the hook head, and also comprising a spring member between the first cover plate and the second cover plate and sleeved on the rod; a sleeve sleeved on the hook rod and abutting the lower side of the spring member, multiple groups of compression springs are arranged inside the sleeve, and a warning line is arranged on the outside of the sleeve; an observation hole is opened on the first cover plate; and a connecting rod is arranged on the lower side of the hook rod, and a base for driving the sleeve to move is provided on the lower side of the connecting rod.
[0005] Preferably, a switching hole is provided through the first cover plate and the second cover plate, a switching plate is slidably provided in the switching hole, the switching plate is sleeved on the hook rod, a rectangular groove is provided inside the switching plate, a through hole is provided inside the switching plate, the through hole is connected to the rectangular groove, the connecting rod slides in the through hole, and a push plate that can slide relative to the hook rod is provided on the inner side of the sleeve, and the push plate is located on the lower side of the compression spring.
[0006] Preferably, a slope is provided at the bottom of the switching plate.
[0007] Preferably, two groups of limit blocks are fixedly arranged between the first cover plate and the second cover plate, and the two groups of limit blocks are symmetrically arranged on the left and right sides of the self-locking disk. Each group of limit blocks includes limit block one and limit block two. A limit rod is slidably arranged between each limit block one and the corresponding limit block two. The upper end of the limit rod is located on the upper side of the base, and the base can drive the limit rod to move when it moves.
[0008] Preferably, the first limiting block is arranged in parallel with the second limiting block.
[0009] Preferably, the upper ends of the limiting rods are arranged parallel to the upper side surface of the base.
[0010] Preferably, the lower end of the limiting rod is provided with an arc-shaped limiting end, and the curvature of the arc-shaped limiting end is the same as the curvature of the self-locking disk.
[0011] Preferably, a glass window is provided on the observation hole.
[0012] The beneficial effects of the present invention are:
[0013] (1) In order to ensure that the rope does not exceed the force limit and break during use, the utility model provides a spring member on the upper side of the sleeve. The elastic limit strength of the spring is set to be the same as the limit that the rope can withstand. In order to serve as a warning, a warning line is provided on the side of the sleeve. The warning line moves with the movement of the sleeve. When the warning line moves to the position of the observation hole, the warning line can be clearly observed from the observation hole, thereby warning the user that the rope has reached its limit strength and not to increase the weight to cause a construction accident, thereby greatly improving safety. The color of the warning line is set to a striking red or yellow. Of course, any color can be set as long as it can serve as a warning effect. Of course, the alarm device can also use a linear potentiometer, a PLC controller, and a warning light to electrically connect the alarm. When the linear potentiometer detects that the compression spring is compressed to the limit position, the warning light starts to flash, thereby serving as a warning. The linear potentiometer and the PLC are set inside the cover plate, and the warning light is set outside the cover plate.
[0014] (2) The utility model provides a sliding space for the switch plate by setting a rectangular groove. The switch plate can slide relative to the hook rod. When the weight of the heavy object driven by the rope is too light, there is no need to drive the sleeve to move, and there is no need to expose the warning line at the observation hole, so as to avoid excessive use of the base to squeeze the switch plate and then cause the switch plate to squeeze the side of the sleeve, affecting the service life of the sleeve. When the sleeve is not needed, the switch plate is pushed to connect the through hole with the connecting rod. At this time, when the hook is under force, the connecting rod is driven to pass through the through hole. At this time, the connecting rod directly drives the push plate to move upward to compress the compression spring, thereby avoiding the use of the sleeve. The automatic switching effect can be customized according to the weight of the actual object.
[0015] (3) When the base of the utility model moves upward, it can drive the limit rod to move. Under the limit of each set of relatively arranged limit blocks 1 and 2, the limit rod can slide upward, so that the lower end of the limit rod can press the rope tightly against the self-locking disk to increase the tightening effect of the rope, and avoid the rope from gradually deforming and breaking at the top end during long-term use. The limit rod can clamp the left and right sides of the rope to increase the safety of the rope when used.
[0016] (4) In the present invention, the upper end of the limit rod is arranged parallel to the upper plane of the base, which can improve the stability of the two limit rods when the base moves upward. Of course, in order to further reduce the friction when the limit rod approaches the base, a spherical ball or a roller can be set at the upper end of the limit rod to abut against the base, which can reduce the internal force consumption between the inner limit rod and the base, and can more conveniently achieve the effect of clamping and limiting the ropes on the left and right sides of the self-locking device, thereby reducing the resistance of the limit block 2 to the limit rod, making the limit block 2 less likely to deform and increasing the service life of the limit block 2.
[0017] (5) In the present invention, the curvature of the arc-shaped limit end is the same as that of the self-locking device. When the limit rod clamps and limits the two sides of the self-locking device, the rope can better fit the curvature of the self-locking device, thereby further increasing the contact area between the rope and the self-locking device, thereby increasing the friction between the rope and the self-locking device and improving safety performance. The warning line is located inside the cover and is difficult to clean. The glass window can block dust and avoid the warning line being covered with dust after long-term use, resulting in blurred warning lines. When dust appears on the glass window after long-term use, it only needs to be cleaned.
[0018] In summary, the utility model has the advantages of weight detection and warning functions. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2This is a schematic cross-sectional view of the utility model;
[0021] Figure 3 This is an isometric cross-sectional view of the present invention;
[0022] Figure 4 This is a schematic diagram of the switching board of the present invention. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0025] Example 1
[0026] Figures 1 to 4 A safety hook with weight recognition according to an embodiment of the present invention is schematically shown.
[0027] like Figure 1 As shown, this embodiment provides a safety hook with weight recognition, including a first cover plate 1 and a second cover plate 2 that are interlocked with each other, a self-locking disc 3 disposed between the first cover plate 1 and the second cover plate 2, a rope 4 lapped on the self-locking disc 3, and a hook 5 disposed between the first cover plate 1 and the second cover plate 2. The hook 5 includes a hook head 51 and a hook rod 52 connected to the lower side of the hook head 51, and also includes a spring member 53 located between the first cover plate 1 and the second cover plate 2 and sleeved on the hook rod 52;
[0028] A sleeve 54 is sleeved on the hook rod 52 and abuts against the lower side of the spring member 53. Multiple sets of compression springs 55 are arranged inside the sleeve 54. A warning line 57 is arranged on the outside of the sleeve 54.
[0029] An observation hole 11 is provided on the first cover plate 1;
[0030] In order to ensure that the rope 4 does not exceed the force limit of the rope 4 and break during use, a spring member 53 is provided on the upper side of the sleeve 54. The elastic limit strength of the spring 53 is set to be the same as the limit that the rope 4 can withstand. In order to serve as a warning, a warning line 57 is provided on the side of the sleeve 54. The warning line 57 will move with the movement of the sleeve 54. When the warning line 57 moves to the position of the observation hole 11, the warning line 57 can be clearly observed through the observation hole 11, thereby warning the user that the rope 4 has reached its limit strength. It is forbidden to add more weight to avoid construction accidents, which greatly improves safety. The color of the warning line 57 is set to be eye-catching red or yellow. Of course, any color can be set as long as it has a warning effect. Of course, the alarm device can also be used by electrically connecting a linear potentiometer, a PLC controller, and a warning light to issue an alarm. When the linear potentiometer detects that the compression spring is compressed to the limit position, the warning light starts to flash, thereby serving as a warning. The linear potentiometer and the PLC are arranged inside the cover plate, and the warning light is arranged outside the cover plate.
[0031] A connecting rod 56 is provided on the lower side of the hook rod 52, and a base 58 is provided on the lower side of the connecting rod 56 for driving the sleeve 54 to move;
[0032] In order to achieve the effect of driving the sleeve 54 to move up and down, a base 58 is provided on the lower side of the hook rod 52. When the hook rod 52 drives the base 58 to move upward, it can also drive the sleeve 54 to move upward, thereby bringing the warning line 57 into the observation hole 11 to achieve the warning effect.
[0033] Combine Figure 2-3 As shown, a switching hole 6 is provided through the first cover plate 1 and the second cover plate 2, and a switching plate 7 is slidably provided in the switching hole 6. The switching plate 7 is sleeved on the hook rod 52, and a rectangular groove 71 is provided inside the switching plate 7. A through hole 72 is provided inside the switching plate 7. The through hole 72 is connected to the rectangular groove 71, and the connecting rod 56 slides in the through hole 72. A push plate 59 that can slide relative to the hook rod 52 is provided on the inner side of the sleeve 54, and the push plate 59 is located on the lower side of the compression spring 55.
[0034] In this embodiment, a rectangular groove 71 is provided to provide a sliding space for the switching plate 7, and the switching plate 7 can slide relative to the hook rod 52. When the weight of the heavy object driven by the rope is too light, there is no need to drive the sleeve 54 to move, and there is no need to expose the warning line at the observation hole 11, to avoid excessive use of the base 58 to squeeze the switching plate 7 and then cause the switching plate 7 to squeeze the side of the sleeve 54, affecting the service life of the sleeve 54. When the sleeve 54 is not needed, the switching plate 7 is pushed to make the through hole 72 dock with the connecting rod 56. At this time, when the hook 51 is under force, the connecting rod 56 is driven to pass through the through hole 72. At this time, the connecting rod 56 directly drives the push plate 59 to move upward to compress the compression spring 55, thereby avoiding the use of the sleeve 54. The automatic switching effect can be customized according to the weight of the actual object.
[0035] Combine Figure 4 As shown, a slope is provided at the bottom of the switching plate.
[0036] Combine Figure 2-3 As shown, two groups of limit blocks 8 are fixedly arranged between the first cover plate 1 and the second cover plate 2. The two groups of limit blocks 8 are symmetrically arranged on the left and right sides of the self-locking disk 3. Each group of limit blocks 8 includes a limit block 1 81 and a limit block 2 82. A limit rod 83 is slidingly arranged between each limit block 1 81 and the corresponding limit block 2 82. The upper end of the limit rod 83 is located on the upper side of the base 58. When the base 58 moves, it can drive the limit rod 83 to move.
[0037] In this embodiment, when the base 58 moves upward, it can drive the limit rod 83 to move. Under the limitation of each set of relatively arranged limit blocks 1 81 and limit blocks 2 82, the limit rod 83 can slide upward, so that the lower end of the limit rod 83 presses the rope 4 tightly against the self-locking disk 3 to increase the tightening effect of the rope, and prevent the top end of the rope 4 from gradually deforming and breaking during long-term use. The limit rod 83 can clamp the left and right sides of the rope 4 to increase the safety of the rope 4 when in use.
[0038] Combine Figure 2-3 As shown, the limiting block 1 81 and the limiting block 2 82 are arranged in parallel.
[0039] In this embodiment, the limit block 81 is arranged in parallel with the limit block 82, which can provide a guiding effect for the limit rod 83, so that the limit rod 83 can move upward stably. The limit block 81 is arranged in parallel with the limit block 82 and can also improve the accuracy of the movement of the limit rod 83, so that the ropes 4 on the left and right sides of the self-locking device 3 can be clamped and fixed more accurately, thereby improving the service life and safety of the hook.
[0040] Combine Figure 2 As shown, the upper ends of the limiting rods 83 are arranged parallel to the upper side surface of the base 58.
[0041] In this embodiment, setting the upper end of the limit rod 83 parallel to the upper plane of the base 58 can improve the stability of the two limit rods 83 when the base 58 moves upward. Of course, in order to further reduce the friction when the limit rod 83 approaches the base 58, a spherical ball or roller can be set at the upper end of the limit rod 83 to abut against the base 58, which can reduce the internal force consumption between the inner limit rod 83 and the base 58, and can more conveniently achieve the effect of clamping and limiting the ropes 4 on the left and right sides of the self-locking device 3, thereby reducing the resistance of the limit block 2 82 to the limit rod 83, making the limit block 2 82 not easy to deform, and increasing the service life of the limit block 2 82.
[0042] Combine Figure 2 As shown, an arc-shaped limiting end 84 is provided at the lower end of the limiting rod 83 , and the curvature of the arc-shaped limiting end 84 is the same as the curvature of the self-locking disk 3 .
[0043] In this embodiment, the curvature of the arc-shaped limit end 84 is the same as the curvature of the self-locking device 3. When the limit rod 83 clamps and limits the two sides of the self-locking device 3, the rope 4 can better fit the curvature of the self-locking device 3, thereby further increasing the contact area between the rope 4 and the self-locking device 3, thereby increasing the friction between the rope 4 and the self-locking device 3 and improving safety performance.
[0044] Combine Figure 1 As shown, a glass window is provided on the observation hole 6.
[0045] In this embodiment, the warning line 57 is located inside the cover and is difficult to clean. The glass window can block dust to prevent the warning line 57 from being covered with dust after long-term use, resulting in blurred warning line 57. When dust appears on the glass window after long-term use, you only need to clean the glass window.
[0046] How it works
[0047] When in use, the rope 4 is connected to the self-locking device 3, the rope 4 is bound to the object, and the heavy object pulling device pulls the hook 51, and the hook 51 drives the connecting rod 56 and the base 58 to move upward, thereby driving the switching plate 7 and the sleeve 54 to move upward and then compressing the spring member 53. When the sleeve 54 moves upward, the warning line 57 on the sleeve 54 is exposed from the observation hole 11. At this time, the user can clearly see the warning line 57, which can increase the user's vigilance. At the same time, when the base 58 moves upward, it can drive the limiting rod 83 to move toward the direction of the base 58, thereby driving the arc-shaped limiting end 84 to fasten the rope 4 to the surface of the self-locking device 3. 3 has the same curvature, so when the arc-shaped limit end 84 drives the rope 4 to cling to the self-locking device 4 for tightening and clamping, the friction force is greater and the clamping effect is better. When the cargo bound by the rope 4 is light, there is no need to use the sleeve to rise so that the warning line 57 appears in the observation hole 11 to remind the user that it is about to be overweight. At this time, the switching plate 7 is slid so that the through hole 72 is vertically aligned with the connecting rod 56. At this time, pulling the hook 51 can drive the connecting rod 56 to pass through the through hole 72, avoiding directly pushing the switching plate 7. The switching plate 7 directly acts on the sleeve 54 to drive the sleeve to move, so that it can directly abut the push plate 59, thereby driving the sleeve 54 to compress the internal compression spring 55 for use.
[0048] The above description is only a preferred embodiment of the present invention and is 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 in the scope of protection of the present invention.
Claims
1. A safety hook with weight recognition, comprising a first cover plate and a second cover plate that interlock with each other, a self-locking disc disposed between the first cover plate and the second cover plate, a rope attached to the self-locking disc, and a hook disposed between the first cover plate and the second cover plate, the hook comprising a hook head connected to a hook rod on the underside of the hook head, characterized in that: It also includes a spring member between the first cover plate and the second cover plate and sleeved on the rod portion; A sleeve is sleeved on the hook portion and abuts against the lower side of the spring member, wherein multiple groups of compression springs are arranged inside the sleeve and a warning line is arranged on the outside of the sleeve; an observation hole formed in the first cover plate; and A connecting rod is arranged on the lower side of the hook rod, and a base for driving the sleeve to move is arranged on the lower side of the connecting rod.
2. A safety hook with weight recognition according to claim 1, characterized in that: A switching hole is provided through the first cover plate and the second cover plate, a switching plate is slidably provided in the switching hole, the switching plate is sleeved on the hook rod, a rectangular groove is provided inside the switching plate, a through hole is provided inside the switching plate, the through hole is connected to the rectangular groove, the connecting rod slides in the through hole, a push plate that can slide relative to the hook rod is provided on the inner side of the sleeve, and the push plate is located on the lower side of the compression spring.
3. A safety hook with weight recognition according to claim 2, characterized in that: The bottom of the switching plate is provided with an inclined surface.
4. The safety hook with weight recognition according to claim 1, characterized in that: Two groups of limit blocks are fixedly arranged between the first cover plate and the second cover plate, and the two groups of limit blocks are symmetrically arranged on the left and right sides of the self-locking disk. Each group of limit blocks includes limit block one and limit block two. A limit rod is slidably arranged between each limit block one and the corresponding limit block two. The upper end of the limit rod is located on the upper side of the base, and the base can drive the limit rod to move when it moves.
5. The safety hook with weight recognition according to claim 4, characterized in that: The first limiting block is arranged in parallel with the second limiting block.
6. The safety hook with weight recognition according to claim 4, characterized in that: The upper ends of the limiting rods are arranged parallel to the upper side surface of the base.
7. The safety hook with weight recognition according to claim 4, characterized in that: The lower end of the limiting rod is provided with an arc-shaped limiting end, and the curvature of the arc-shaped limiting end is the same as the curvature of the self-locking disk.
8. The safety hook with weight recognition according to claim 1, characterized in that: A glass window is provided on the observation hole.