Safety buckle of lifting hook
By designing a hook safety buckle that uses strong magnets and electric field strength detection, the problem of easy damage and safety hazards in the existing technology of the hook safety buckle is solved, achieving higher reliability and safety, and extending the service life. , and easy for staff to operate.
Patent Information
- Application Number
- CN202411273904.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-01-21
AI Technical Summary
The existing hook safety buckles are prone to damage and pose major safety hazards. Especially in power operations, the steel rope may fall off, causing objects to fall, equipment damage or personal injury.
A hook safety buckle is designed that includes a safety buckle unit, a limit unit and a hook unit. The magnetic attraction between a strong magnet and the hook is used to adsorb the safety buckle to the hook, increasing the force arm and improving reliability. . At the same time, the electric field strength detector and buzzer are used to remind workers of the safety of electric field operations.
The service life of the hook insurance buckle was extended, and the hook reminded the operators when the hook was in a closed state, improved the vigilance of the operator, reduced the hidden safety hazards, and fixed the insurance buckle position when the wire rope was disassembled. Essence
Smart Images
Figure CN119330201A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of safety buckles, in particular to a hook safety buckle. Background Art
[0002] The hook safety buckle is a key safety accessory widely used in various lifting equipment such as cranes and hoists to ensure safety during lifting operations. This device is designed to prevent the hook from accidentally unhooking when bearing a heavy object, which is a common risk point in lifting operations. Once the hook is unhooked, it may cause the heavy object to fall, causing property loss, equipment damage, and even endangering the safety of the operator and surrounding personnel.
[0003] The hook safety locking device in the lifting equipment has safety hazards. Its tension depends on the spring, which is easy to damage and unstable. In power operations, steel rope lifting is common, but once the safety fails, the steel rope may fall off, causing objects to fall and injure people, equipment damage, accidental contact with live equipment, and even power grid accidents and personal injury. Summary of the invention
[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.
[0005] Therefore, the purpose of the present invention is to provide a hook safety buckle, which is designed to solve the problem that the existing hook safety buckle is easy to be damaged and has major safety hazards.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a hook safety buckle, comprising: a safety buckle unit, including a support plate, a round rod arranged on the inner side of one end of the support plate, a torsion spring arranged on the outer side of the round rod, a protective shell arranged on the inner side of the support plate, a strong magnet arranged on one side of the end of the protective shell, an indicator light arranged on the inner side of the protective shell, an electric field strength detector arranged on one side of the indicator light, a buzzer linearly connected to the electric field strength detector, a battery arranged at a lower position on the inner side of the protective shell, and a contact switch arranged at the bottom of the battery;
[0007] A limiting unit, comprising a flip plate arranged on the outside of the round rod, a pressing member arranged on the inside of the flip plate, a sliding column arranged on the inside of the round rod, and a limiting block arranged on the end of the sliding column;
[0008] The hook unit comprises a hook body, a buckle arranged on the top of the hook body, and a fixing block arranged on the side wall of the hook body;
[0009] The round rod passes through the fixing block and extends to the outside thereof; the flip plate is arranged at the opening position of the hook body.
[0010] As a preferred solution of the hook safety buckle of the present invention, the round rod penetrates the support plate and extends to the outside thereof;
[0011] The strong magnet is detachably connected to the support plate, and the strong magnet is close to an end of the support plate away from the round rod;
[0012] The end of the support plate is closely attached to the inner wall of the hook body by the cooperation of the magnetic attraction force of the strong magnet and the rebound force of the torsion spring.
[0013] As a preferred solution of the hook safety buckle of the present invention, wherein: the protective shell and the support plate are arranged opposite to each other to form a certain space inside;
[0014] The protective shell penetrates through the support plate and extends to the outside thereof;
[0015] The contact switch penetrates the support plate and extends to the outside thereof, and the end of the contact switch contacts the inner wall of the hook body.
[0016] As a preferred solution of the hook safety buckle of the present invention, wherein: the pressing member includes a sleeve, and the sleeve includes a V-shaped groove opened on its side wall, and a positioning groove arranged on one side of the V-shaped groove;
[0017] The end of the flip plate is provided with an axial hole, and the inner wall of the axial hole is provided with a guide column;
[0018] The pressing piece is sleeved on the outside of the round rod, and the end of the pressing piece passes through the inside of the shaft hole;
[0019] The guide post is inserted into the inner side of the V-shaped groove.
[0020] As a preferred solution of the hook safety buckle of the present invention, the pressing member further comprises a return spring arranged at the end of the sleeve, and a retaining ring arranged at the end of the return spring;
[0021] The end of the retaining ring is in contact with the surface of the fixing block;
[0022] The return spring pushes the end of the sleeve to be inserted into the inner side of the shaft hole of the flip plate.
[0023] As a preferred solution of the hook safety buckle of the present invention, wherein: a slideway is provided inside the round rod, and a through hole penetrating the side wall thereof is provided in the center of the round rod;
[0024] The sliding column is located inside the slideway, and the sliding column is adapted to the slideway;
[0025] The sliding column includes a protrusion arranged on a side wall thereof, and a sliding block arranged at an end of the sliding column;
[0026] The protrusion penetrates the side wall of the round rod and extends to the outside thereof;
[0027] The protrusion is movably connected to the shaft sleeve.
[0028] As a preferred solution of the hook safety buckle of the present invention, the limit block includes a slide groove opened at its end, and a clamping block arranged on the side wall of the limit block;
[0029] The limiting block is adapted to the through hole;
[0030] The sliding block is matched with the sliding groove.
[0031] As a preferred solution of the hook safety buckle of the present invention, wherein: the rotation of the flip plate can drive the end of the support plate away from the inner wall of the hook body;
[0032] The end of the block is sunken into the inner side of the slideway.
[0033] As a preferred solution of the hook safety buckle of the present invention, wherein: the fixing block includes a limiting groove opened inside thereof;
[0034] The side wall of the guide column is in contact with the end of the sleeve;
[0035] The sliding column moves along the axis direction of the slideway to squeeze the limit block to move along the inner wall direction of the through hole;
[0036] The clamping block passes through the through hole and is inserted into the inner side of the limiting groove.
[0037] As a preferred solution of the hook safety buckle of the present invention, wherein: the guide column is adapted to the positioning groove;
[0038] The guide post is inserted into the inner side of the positioning groove;
[0039] The support plate is relatively fixed to the hook body.
[0040] Beneficial effects of the present invention: When the hook body and the safety buckle of the present invention are connected, the contact switch conflicts with the hook, and the indicator light will light up at this time to remind the operator that the hook is in a closed state. When the crane enters the electric field to work, electromagnetic induction is generated, and the buzzer sounds to remind the operator that the current working environment is in an electric field operation, thereby increasing the vigilance of the operator and ensuring safe operation; the magnetic attraction between the strong magnet and the hook is used to make the hook safety buckle adsorbed on the hook, increasing the hook safety buckle force arm and improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0042] Figure 1 It is a schematic diagram of the buckling structure of the hook safety buckle.
[0043] Figure 2 Schematic diagram of the opening structure of the hook safety buckle.
[0044] Figure 3 It is a schematic diagram of the safety buckle unit structure of the hook safety buckle.
[0045] Figure 4 This is a schematic diagram of the arrangement structure of the indicator light and contact switch of the hook safety buckle.
[0046] Figure 5 This is a partial cross-sectional view of the round rod of the hook safety buckle.
[0047] Figure 6 This is a schematic diagram of the connection structure between the guide column and the V-shaped groove of the hook safety buckle.
[0048] Figure 7 This is a schematic diagram of the connection structure between the guide column and the positioning groove of the hook safety buckle.
[0049] Figure 8 Schematic diagram of the explosion structure of the hook safety buckle. DETAILED DESCRIPTION
[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0051] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0052] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.
[0053] Example 1
[0054] Reference Figure 1 to Figure 5 , which is the first embodiment of the present invention, and this embodiment provides a hook safety buckle, which includes a safety buckle unit 100, including a support plate 101, a round rod 102 arranged on the inner side of one end of the support plate 101, a torsion spring 103 arranged on the outer side of the round rod 102, a protective shell 104 arranged on the inner side of the support plate 101, a strong magnet 105 arranged on one side of the end of the protective shell 104, an indicator light 106 arranged on the inner side of the protective shell 104, an electric field strength detector 107 arranged on one side of the indicator light 106, a buzzer 108 linearly connected to the electric field strength detector 107, a battery 109 arranged at the lower position of the inner side of the protective shell 104, and a contact switch 110 arranged at the bottom of the battery 109.
[0055] It should be noted that the cross section of the support plate 101 is a "concave"-shaped structure, and the support plate 101 is made of metal material; the round rod 102 and the support plate 101 move relative to each other along the axis direction of the round rod 102, and the rotation of the set round rod 102 can drive the support plate 101 to rotate; the set torsion spring 103 is arranged outside the round rod 102, and under normal conditions, the torsion force of the torsion spring 103 can drive the support plate 101 to flip along the axis direction of the round rod 102;
[0056] The strong magnet 105 and the support plate 101 are detachably connected by bolts, and the strong magnet 105 cooperates with the torsion spring 103 to make the support plate 101 and the hook body 301 buckle, thereby ensuring that the opening of the hook body 301 is in a closed state;
[0057] The protective shell 104 is made of insulating material, and the protective shell 104 can provide a certain degree of protection for the parts inside it; the battery 109 provides suitable power for the operation of the equipment, and the contact switch 110 controls the opening and closing of the indicator light 106; the range of the voltage is sensed by the electric field strength detector 107, and a sound is emitted through the buzzer 108 to provide a warning to the staff.
[0058] Furthermore, the limiting unit 200 includes a flip plate 201 arranged on the outside of the round rod 102, a pressing piece 202 arranged on the inside of the flip plate 201, a sliding column 203 arranged on the inside of the round rod 102, and a limiting block 204 arranged at the end of the sliding column 203; the hook unit 300 includes a hook body 301, a buckle 302 arranged on the top of the hook body 301, and a fixed block 303 arranged on the side wall of the hook body 301; the round rod 102 passes through the fixed block 303 and extends to its outside; the flip plate 201 is arranged at the opening position of the hook body 301.
[0059] It should be noted that the round rod 102 is movably connected to the flip plate 201, and the flip plate 201 can drive the support plate 101 to flip during its rotation. Therefore, when the position between the support plate 101 and the hook body 301 is staggered, the support plate 101 can be driven to rotate by turning the flip plate 201. The provided flip plate 201 can increase the force arm of flipping the support plate 101, thereby saving effort in releasing the connection between the support plate 101 and the hook body 301.
[0060] The pressing piece 202 cooperates with the sliding column 203 to limit the limit block 204, so that the limit block 204 can be inserted into the inner side of the fixed block 303; so that after the support plate 101 is flipped to a certain angle, the position between the support plate 101 and the hook body 301 is relatively fixed.
[0061] Furthermore, the round rod 102 passes through the support plate 101 and extends to its outside; the strong magnet 105 is detachably connected to the support plate 101, and the strong magnet 105 is close to the end of the support plate 101 away from the round rod 102; the end of the support plate 101 is pressed against the inner wall of the hook body 301 by the cooperation of the magnetic attraction of the strong magnet 105 and the rebound force of the torsion spring 103.
[0062] It should be noted that in order to increase the service life of the hook safety buckle, the power source of the hook safety buckle is adjusted from the tail to the front end, and a strong magnet is installed at the head of the hook safety buckle. The magnetic attraction between the strong magnet and the hook is used to make the hook safety buckle adsorb on the hook, thereby increasing the hook safety buckle force arm and improving reliability.
[0063] Furthermore, the protective shell 104 and the support plate 101 are arranged opposite to each other to form a certain space inside; the protective shell 104 penetrates the support plate 101 and extends to its outside; the contact switch 110 penetrates the support plate 101 and extends to its outside, and the end of the contact switch 110 contacts the inner wall of the hook body 301.
[0064] It should be noted that when entering an electric power production site for operation, the electric field detection equipment on the hook senses the electric field strength in advance to remind the operating personnel to concentrate and prevent accidental touching of live equipment; when the hook safety buckle is locked, the switch will be triggered and the light will be turned on to indicate the locked state of the hook safety buckle. When the safety buckle is opened, the light will go out, which can better facilitate the staff to observe the connection status of the safety buckle and the hook.
[0065] When in use, the contact switch 110 is installed at the tail of the support plate 101. When the hook body 301 and the support plate 101 are buckled, the contact switch 110 contacts the hook body 301. At this time, the indicator light 106 will light up to remind the operator that the hook is in a closed state. When the crane enters the electric field to work, electromagnetic induction is generated. After the electric field strength detector 107 senses the electromagnetic, it controls the buzzer to sound to remind the operator that the current working environment is in an electric field operation, thereby increasing the vigilance of the operator and ensuring safe operation. The components required for the safety device are welded on the circuit board, and the battery provides power to drive the operation of the program to ensure the normal operation of the device. The magnet is installed at the bottom of the safety buckle to ensure that the safety buckle and the hook can be buckled well and to ensure that the steel rope will not fall off in the hook.
[0066] In summary, the present invention extends the service life of the hook safety buckle; can display the status of the hook safety buckle, even if the hook safety buckle fails; indicates the open and closed status of the hook through an indicator light, and promptly reminds the operator to replace the safety buckle when the function of the safety buckle fails; can detect the electric field strength, and improve the operator's access to electrical; and reminds the operator that the current working environment is a live place through the sound of a buzzer, thereby improving the safety of working in an electric field.
[0067] Example 2
[0068] Reference Figure 1 to Figure 3 , Figure 5 and Figure 6 , which is the second embodiment of the present invention, and is different from the first embodiment in that: it also includes, in the previous embodiment, the hook safety buckle includes, the pressing piece 202 includes a sleeve 2021, the sleeve 2021 includes a V-shaped groove 20211 opened on its side wall, and a positioning groove 20212 arranged on one side of the V-shaped groove 20211; an axial hole is opened at the end of the flip plate 201, and a guide column 2011 is arranged on the inner wall of the axial hole; it is sleeved on the outer side of the round rod 102, and the end of the pressing piece 202 passes through the inner side of the axial hole; the guide column 2011 is inserted into the inner side of the V-shaped groove 20211.
[0069] Preferably, the axial hole opened inside the flip plate 201 is adapted to the outer diameter of the sleeve 2021, and the inner diameter of the sleeve 2021 is adapted to the round rod 102; and the guide column 2011 is inserted into the inner side of the V-shaped groove 20211; so that the rotation of the flip plate 201 drives the guide column 2011 to rotate, so that the side wall of the guide column 2011 squeezes the inner wall of the V-shaped groove 20211, ensuring that the rotation of the flip plate 201 drives the pressing piece 202 to rotate; when the buckle between the support plate 101 and the hook body 301 is released, the support plate 101 can be flipped by pulling the flip plate 201, making it easier for the staff to operate.
[0070] Furthermore, the pressing member 202 also includes a return spring 2022 arranged at the end of the sleeve 2021, and a retaining ring 2023 arranged at the end of the return spring 2022; the end of the retaining ring 2023 contacts the surface of the fixing block 303; the return spring 2022 pushes the end of the sleeve 2021 to insert into the inner side of the shaft hole of the flip plate 201.
[0071] It should be noted that, under the action of the rebound force of the return spring 2022, the V-shaped groove 20211 is pushed toward the direction of the guide post 2011, so that the guide post 2011 is clamped inside the V-shaped groove 20211; the return spring 2022 is sleeved on the outside of the round rod 102;
[0072] The elastic force coefficient of the reset spring 2022 is greater than the coefficient of the torsion spring 103 , so that the movements of the round rod 102 and the flip plate 201 are in a synchronous state under normal conditions and are not affected.
[0073] The retaining ring 2023 is in contact with the fixing block 303 , so that the reaction force of the return spring 2022 can clamp the position between the V-shaped groove 20211 and the guide column 2011 .
[0074] Furthermore, a slideway 1021 is provided inside the round rod 102, and a through hole 1022 penetrating the side wall thereof is provided at the center of the round rod 102; the sliding column 203 is located on the inner side of the slideway 1021, and the sliding column 203 is adapted to the slideway 1021; the sliding column 203 includes a protrusion 2032 provided on its side wall, and a slider 2031 provided at the end of the sliding column 203; the protrusion 2032 penetrates the side wall of the round rod 102 and extends to the outside thereof; the protrusion 2032 is movably connected to the sleeve 2021.
[0075] It should be noted that the slideway 1021 provides a certain space for the movement of the sliding column 203; and the slideway 1021 is connected to the through hole 1022, and the protrusion 2032 penetrates the side wall of the round rod 102 and extends to the outside thereof, so that the protrusion 2032 plays a certain guiding role in the process of moving along the axis direction of the round rod 102;
[0076] The end of the protrusion 2032 contacts the sleeve 2021 , and the protrusion 2032 and the sleeve 2021 are movably connected. The rotation of the sleeve 2021 will not drive the protrusion 2032 to rotate, but the sleeve 2021 can drive the sliding column 203 to move during the movement along the axis of the round rod 102 .
[0077] Furthermore, the limiting block 204 includes a slide groove 2041 opened at its end, and a clamping block 2042 arranged on the side wall of the limiting block 204 ; the limiting block 204 is adapted to the through hole 1022 ; and the sliding block 2031 is adapted to the slide groove 2041 .
[0078] It should be noted that a sliding groove 2041 is provided at the end of the limit block 204 close to the sliding column 203, and the sliding groove 2041 is slidingly connected to the slider 2031. The sliding column 203 can drive the limit block 204 to move during the movement along the axial direction of the round rod 102, so that the blocking block 2042 can pass through the through hole 1022 and extend to its outside; and the limit block 204 is set to move along the trajectory inside the through hole 1022.
[0079] Furthermore, the rotation of the flip plate 201 can drive the end of the support plate 101 away from the inner wall of the hook body 301 ; the end of the block 2042 is immersed in the inner side of the slideway 1021 .
[0080] It should be noted that the flip plate 201 is turned to rotate along the axis direction of the round rod 102; the rotation of the flip plate 201 can drive the support plate 101 to rotate, so that the end of the support plate 101 close to the inner wall of the hook body 301 is moved away; thereby, the notch of the hook body 301 is in an open state, which can better facilitate the staff to take out the wire rope.
[0081] When in use, when the staff needs to take out the steel wire rope inside the hook body 301, they pull the flip plate 201 to flip; under the elastic force of the reset spring 2022, the V-shaped groove 20211 and the guide column 2011 are clamped, and the pressing piece 202 rotates with the rotation of the flip plate 201; the rotation of the pressing piece 202 drives the round rod 102 to rotate, and the rotation of the round rod 102 drives the support plate 101 to rotate; thereby, the end of the support plate 101 is away from the inner wall of the hook body 301; thereby, the buckle connection between the safety buckle and the hook can be released; thereby, it is more convenient for the staff to take out the steel wire rope inside the hook body 301.
[0082] In summary, by cooperating between the flip plate 201 and the round rod 102, the force arm of the flipping of the support plate 101 can be increased, which saves more effort during the operation of the staff; to a certain extent, it can reduce the labor burden of the staff; and better facilitate the operation of the staff.
[0083] Example 3
[0084] Reference Figures 1 to 8 , which is the third embodiment of the present invention, and which is different from the previous two embodiments in that: it includes, further, a slideway 1021 is opened inside the round rod 102, and a through hole 1022 penetrating the side wall thereof is opened at the center of the round rod 102; the sliding column 203 is located on the inner side of the slideway 1021, and the sliding column 203 is adapted to the slideway 1021; the sliding column 203 includes a protrusion 2032 arranged on the side wall thereof, and a slider 2031 arranged at the end of the sliding column 203; the protrusion 2032 penetrates the side wall of the round rod 102 and extends to the outside thereof; the protrusion 2032 is movably connected to the sleeve 2021.
[0085] It should be noted that the slideway 1021 provides a certain space for the movement of the sliding column 203; and the slideway 1021 is connected to the through hole 1022, and the protrusion 2032 penetrates the side wall of the round rod 102 and extends to the outside thereof, so that the protrusion 2032 plays a certain guiding role in the process of moving along the axis direction of the round rod 102;
[0086] The end of the protrusion 2032 contacts the sleeve 2021 , and the protrusion 2032 and the sleeve 2021 are movably connected. The rotation of the sleeve 2021 will not drive the protrusion 2032 to rotate, but the sleeve 2021 can drive the sliding column 203 to move during the movement along the axis of the round rod 102 .
[0087] Furthermore, the limiting block 204 includes a slide groove 2041 opened at its end, and a clamping block 2042 arranged on the side wall of the limiting block 204 ; the limiting block 204 is adapted to the through hole 1022 ; and the sliding block 2031 is adapted to the slide groove 2041 .
[0088] It should be noted that a sliding groove 2041 is provided at the end of the limit block 204 close to the sliding column 203, and the sliding groove 2041 is slidingly connected to the slider 2031. The sliding column 203 can drive the limit block 204 to move during the movement along the axial direction of the round rod 102, so that the blocking block 2042 can pass through the through hole 1022 and extend to its outside; and the limit block 204 is set to move along the trajectory inside the through hole 1022.
[0089] Furthermore, the fixed block 303 includes a limiting groove 3031 opened therein; the side wall of the guide column 2011 contacts the end of the sleeve 2021; the sliding column 203 moves along the axial direction of the slideway 1021 to squeeze the limiting block 204 to move along the inner wall direction of the through hole 1022; the clamping block 2042 passes through the through hole 1022 and is inserted into the inner side of the limiting groove 3031.
[0090] It should be noted that, in the process of turning the flip plate 201, the end of the support plate 101 is moved away from one end of the hook body 301 and close to the other side of the hook body 301; when the support plate 101 contacts the hook body 301, the hook body 301 can limit the rotation of the support plate 101; at this time, continue to turn the flip plate 201 to drive the guide column 2011 to rotate; the side wall of the guide column 2011 squeezes the inner wall of the V-shaped groove 20211; so that the guide column 2011 moves along the inner wall of the V-shaped groove 20211 to the end of the sleeve 2021, and in this process, the sleeve 2021 moves closer to the fixed block 30 3; at the same time, the return spring 2022 is in a compressed state; when the guide column 2011 contacts the end of the sleeve 2021, the sleeve 2021 pushes the protrusion 2032 to move, and the sliding column 203 moves along the inner wall of the round rod 102; the movement of the sliding column 203 drives the limit block 204 to move, so that the block 2042 passes through the through hole 1022 and extends to its outside, and the block 2042 is adapted to the limit groove 3031; thereby, the position between the round rod 102 and the fixed block 303 can be fixed; thereby ensuring that the support plate 101 does not rotate along the axial direction of the round rod 102.
[0091] Furthermore, the guide post 2011 is matched with the positioning groove 20212 ; the guide post 2011 is inserted into the inner side of the positioning groove 20212 ; and the support plate 101 and the hook body 301 are relatively fixed.
[0092] It should be noted that when the guide column 2011 contacts the end of the sleeve 2021, at this time, the support plate 101 cannot rotate along the axial direction of the round rod 102, and the support plate 101 and the hook body 301 remain in a relatively static state; then continue to pull the flip plate 201, in this state, the flip plate 201 and the pressing piece 202 are completely separated, and the rotation of the flip plate 201 will no longer drive the pressing piece 202 to rotate; when the guide column 2011 rotates to the position corresponding to the positioning groove 20212, the positioning groove 20212 and the guide column 2011 are pushed to engage with each other under the action of the rebound force of the return spring 2022; thereby, the position of the flip plate 201 can be fixed; in this state, it can effectively prevent the staff from accidentally touching the support plate 101 and the hook body 301 to return to the buckled state; at this time, the staff can free their hands to take out the wire rope inside the hook body 301; it is more convenient for the staff to operate.
[0093] When in use, the staff will pull the flip plate 201, and the flip plate 201 drives the support plate 101 to flip, so that the end of the support plate 101 is away from the opening side of the hook body 301; then continue to pull the flip plate 201 to rotate, and the rotation of the flip plate 201 drives the guide column 2011 to rotate; at this time, the support plate 101 is limited by the hook body 301, and as the guide column 2011 rotates, the side wall of the guide column 2011 continuously squeezes the inner wall of the V-shaped groove 20211; so that the shaft sleeve 2021 is pressed and moves to the side close to the fixed block 303; when the end of the shaft sleeve 2021 contacts the guide column 2011, the shaft sleeve 2021 pushes the sliding column 203 to move during the movement, so that the sliding column 20 The limit block 204 is pushed to move, and the clamping block 2042 penetrates through the through hole 1022 and extends to the outside thereof, and the clamping block 2042 is engaged with the limit groove 3031, so that the position between the limit groove 3031 and the clamping block 2042 can be fixed; thereby, the position between the round rod 102 and the hook body 301 is fixed; and then the flip plate 201 is continuously rotated, so that the guide column 2011 rotates to the outer side corresponding to the positioning groove 20212, and under the action of the flipping elastic force of the reset spring 2022, the positioning groove 20212 is engaged with the guide column 2011; thus, the limit of the flip plate 201 can be realized, and the position reset between the support plate 101 and the hook body 301 caused by accidental touch can be effectively prevented.
[0094] In summary, when the hook body and the safety buckle of the present invention are connected, the contact switch conflicts with the hook, and the indicator light will light up at this time to remind the operator that the hook is in a closed state. The magnetic attraction between the strong magnet and the hook is used to make the hook safety buckle adsorb on the hook, thereby increasing the force arm of the hook safety buckle and improving reliability. At the same time, when disassembling the wire rope, the position of the safety buckle can be fixed to free the hands of the operator, thereby making it more convenient for the operator to operate.
[0095] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. A hook safety buckle, characterized in that: include, A safety buckle unit (100) comprises a support plate (101), a round rod (102) arranged on the inner side of one end of the support plate (101), a torsion spring (103) arranged on the outer side of the round rod (102), a protective shell (104) arranged on the inner side of the support plate (101), a strong magnet (105) arranged on one side of the end of the protective shell (104), an indicator light (106) arranged on the inner side of the protective shell (104), an electric field strength detector (107) arranged on one side of the indicator light (106), a buzzer (108) linearly connected to the electric field strength detector (107), a battery (109) arranged at a lower position on the inner side of the protective shell (104), and a contact switch (110) arranged at the bottom of the battery (109); A limiting unit (200) comprises a flip plate (201) arranged on the outside of the round rod (102), a pressing member (202) arranged on the inside of the flip plate (201), a sliding column (203) arranged on the inside of the round rod (102), and a limiting block (204) arranged on the end of the sliding column (203); The hook unit (300) comprises a hook body (301), a buckle (302) arranged on the top of the hook body (301), and a fixing block (303) arranged on the side wall of the hook body (301); The round rod (102) passes through the fixing block (303) and extends to the outside thereof; the flip plate (201) is arranged at the opening position of the hook body (301).
2. The hook safety buckle according to claim 1, characterized in that: The round rod (102) passes through the support plate (101) and extends to the outside thereof; The strong magnet (105) is detachably connected to the support plate (101), and the strong magnet (105) is close to an end of the support plate (101) away from the round rod (102); The end of the support plate (101) is closely attached to the inner wall of the hook body (301) through the cooperation of the magnetic attraction force of the strong magnet (105) and the rebound force of the torsion spring (103).
3. The hook safety buckle according to claim 2, characterized in that: The protective shell (104) and the support plate (101) are arranged opposite to each other to form a certain space inside; The protective shell (104) penetrates the support plate (101) and extends to the outside thereof; The contact switch (110) passes through the support plate (101) and extends to the outside thereof, and an end of the contact switch (110) contacts the inner wall of the hook body (301).
4. The hook safety buckle according to claim 3, characterized in that: The pressing member (202) comprises a shaft sleeve (2021), and the shaft sleeve (2021) comprises a V-shaped groove (20211) formed on a side wall thereof, and a positioning groove (20212) provided on one side of the V-shaped groove (20211); An axial hole is formed at the end of the flip plate (201), and a guide column (2011) is provided on the inner wall of the axial hole; The pressing piece (202) is sleeved on the outside of the round rod (102), and the end of the pressing piece (202) penetrates to the inside of the shaft hole; The guide column (2011) is inserted into the inner side of the V-shaped groove (20211).
5. The hook safety buckle according to claim 4, characterized in that: The pressing member (202) further comprises a return spring (2022) arranged at the end of the shaft sleeve (2021), and a retaining ring (2023) arranged at the end of the return spring (2022); The end of the retaining ring (2023) is in contact with the surface of the fixing block (303); The return spring (2022) pushes the end of the shaft sleeve (2021) to be inserted into the inner side of the shaft hole of the flip plate (201).
6. The hook safety buckle according to claim 5, characterized in that: A slideway (1021) is provided inside the round rod (102), and a through hole (1022) penetrating the side wall of the round rod (102) is provided at the center thereof; The sliding column (203) is located inside the slideway (1021), and the sliding column (203) is adapted to the slideway (1021); The sliding column (203) comprises a protrusion (2032) arranged on a side wall thereof, and a sliding block (2031) arranged at an end of the sliding column (203); The protrusion (2032) penetrates the side wall of the round rod (102) and extends to the outside thereof; The protrusion (2032) is movably connected to the shaft sleeve (2021).
7. The hook safety buckle according to claim 6, characterized in that: The limit block (204) comprises a slide groove (2041) opened at its end, and a clamping block (2042) arranged on a side wall of the limit block (204); The limiting block (204) is adapted to the through hole (1022); The sliding block (2031) is adapted to the sliding groove (2041).
8. The hook safety buckle according to claim 7, characterized in that: The rotation of the flip plate (201) can drive the end of the support plate (101) away from the inner wall of the hook body (301); The end of the block (2042) is immersed in the inner side of the slideway (1021).
9. The hook safety buckle according to claim 7, characterized in that: The fixing block (303) comprises a limiting groove (3031) formed inside the fixing block; The side wall of the guide column (2011) is in contact with the end of the shaft sleeve (2021); The sliding column (203) moves along the axial direction of the slideway (1021) to squeeze the limiting block (204) to move along the inner wall direction of the through hole (1022); The clamping block (2042) passes through the through hole (1022) and is inserted into the inner side of the limiting groove (3031).
10. The hook safety buckle according to claim 9, characterized in that: The guide column (2011) is adapted to the positioning groove (20212); The guide column (2011) is inserted into the inner side of the positioning groove (20212); The support plate (101) and the hook body (301) are relatively fixed.