Semi-automatic visual guidance self-locking lifting appliance and lifting device

Abstract

The utility model discloses a semi-automatic vision-guided self-locking lifting appliance and a lifting device, and belongs to the technical field of lifting equipment. The device comprises a hoisting clamping block, wherein a circle of clamping groove is formed in the side wall of the hoisting clamping block; the lifting tool base is provided with a mounting position matched with the lifting clamping block in shape, and a plurality of hollow parts arranged around the circumference of the mounting position are arranged on the side face of the mounting position; the locking pieces are arranged in the hollowed-out part, the locking pieces are rotationally connected with the lifting appliance base, at least part of the locking pieces are located in the mounting positions, when the lifting clamping blocks are inserted into the mounting positions, the locking pieces are pushed to rotate to avoid the lifting clamping blocks, and when the clamping grooves are aligned with the locking pieces, the locking pieces rotate to reset under the gravity of the locking pieces and are clamped in the clamping grooves; a camera of the camera shooting assembly is installed at the bottom of the hoisting clamping block. According to the device, self-locking is realized through the clamping groove of the lifting clamping block and the locking piece on the lifting appliance base, so that the problem of connection failure or looseness caused by failure of an electric control lock in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a semi-automatic vision-guided self-locking lifting device and lifting apparatus. Background Technology

[0002] The application of automatic hooking and unhooking spreaders on existing lifting equipment can improve efficiency and safety, but automated systems may experience software or hardware malfunctions that lead to misoperation; for example, if the system mistakenly believes that the spreader has been unlocked or locked, it may cause a lifting accident; operators’ trust in the system may cause them to overlook potential manual inspection needs.

[0003] In certain extreme working environments, such as high temperature, humidity or high dust, the sensors and electronic locking systems of automatic hook release devices may be easily damaged or degraded, which may cause connection failure or loosening, affecting the reliability and stability of the device. Utility Model Content

[0004] This utility model provides a semi-automatic vision-guided self-locking lifting device and hoisting mechanism, which aims to solve the problem of connection failure or loosening caused by the failure of the electronic lock in the prior art.

[0005] The first aspect of this utility model provides a semi-automatic vision-guided self-locking lifting device, comprising:

[0006] A hoisting clamp block, wherein a ring of locking grooves is provided on the side wall of the hoisting clamp block;

[0007] The lifting device base has a mounting position that matches the shape of the lifting block, and the side of the mounting position has a plurality of hollowed-out parts arranged around the circumference of the mounting position;

[0008] Multiple locking components are provided in the hollowed-out portion and are rotatably connected to the lifting device base. At least a portion of the locking component is located in the mounting position. When the lifting block is inserted into the mounting position, the locking component is pushed to rotate and avoid the lifting block. When the locking groove is aligned with the locking component, the locking component rotates and resets under its own weight and locks into the locking groove.

[0009] A camera assembly, wherein the camera of the camera assembly is mounted on the bottom of the hoisting block, and the camera assembly is used to capture images of the area below the hoisting block.

[0010] In some embodiments of the first aspect, the lifting device base includes a plurality of triangular seats for enclosing and forming the mounting position, with gaps left between adjacent triangular seats to form the hollow portion;

[0011] The locking component includes a locking block and a locking pin. The locking block is swayably connected to the triangular base via a pin. The locking pin is integrally connected to the locking block and is located on the side of the locking block adjacent to the mounting position.

[0012] When the hoisting block is mounted on the lifting device base, the swing trajectory of the locking pin is at least partially located within the locking groove.

[0013] In some embodiments of the first aspect, the locking block is a triangular block, and the rotatable connection between the triangular block and the triangular base is arranged near one corner of the triangular block, so that the locking member can rotate and reset under its own gravity after rotation.

[0014] In some embodiments of the first aspect, a return spring is also compressed between the inner wall of the snap-fit ​​block and the triangular base.

[0015] In some embodiments of the first aspect, a guide frame is mounted on the top of the lifting device base, the frame wall of the guide frame is arranged around the mounting position, and the guide frame is hollow.

[0016] In some embodiments of the first aspect, the lifting device base is provided with a limit detection sensor for detecting the position of the lifting block and a proximity sensor for detecting the position of the locking element.

[0017] In some embodiments of the first aspect, the diameter of the hoisting block decreases along the top-to-bottom direction.

[0018] In some embodiments of the first aspect, the camera is rotatably connected to the bottom of the hoisting block.

[0019] In some embodiments of the first aspect, the hoisting block is provided with a through hole, and the through hole is oriented in the same direction as the height of the hoisting block.

[0020] The camera assembly includes a camera controller and the camera, wherein the camera controller is signal-connected to the camera;

[0021] The camera controller is snapped onto the through hole. The camera controller is connected and fixed with a second connecting rod. The camera is connected and fixed with a first connecting rod. Both the first connecting rod and the second connecting rod are located inside the through hole. There is a gap between the first connecting rod and the second connecting rod and the through hole. The first connecting rod and the second connecting rod are hinged together.

[0022] The second aspect of this utility model provides a lifting device, comprising:

[0023] Crane;

[0024] The self-locking lifting device described in the first aspect has its lifting block attached to the boom of the crane via a lifting rope, and its lifting base installed on the equipment to be lifted.

[0025] As can be seen from the above technical solutions, this utility model has the following advantages:

[0026] This embodiment provides a self-locking lifting device. Since the shape of the lifting block matches the mounting position of the lifting device base, after the lifting block is inserted into the mounting position and abuts against the locking member, the lifting block will push the locking member to rotate and avoid the lifting block. When the locking groove is aligned with the locking member, the locking member rotates and inserts into the locking groove by its own gravity to achieve self-locking. No electronic locking is required, which avoids problems with the sensors and electronic locking system of the lifting device that automatically detaches the hook, resulting in connection failure or loosening. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the overall structure of a semi-automatic vision-guided self-locking lifting device provided in the first aspect of the present utility model;

[0029] Figure 2 A cross-sectional structural schematic diagram of the hoisting clamp provided in the first aspect of the present utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the hoisting clamp provided in the first aspect of the present utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the hoisting block being installed on the crane according to the second aspect of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the lifting device base on the object to be lifted, provided in the second aspect of the present invention.

[0033] Figure 6 The self-locking process provided in the embodiments of this utility model Figure 1 ;

[0034] Figure 7 The self-locking process provided in the embodiments of this utility model Figure 2 .

[0035] Figure label:

[0036] 1. Lifting clamp; 10. Snap-fit ​​groove; 11. Through hole; 2. Lifting device base; 20. Mounting position; 21. Triangular base; 22. Base plate; 3. Locking component; 30. Snap-fit ​​block; 31. Snap-fit ​​post; 4. Camera assembly; 40. Camera; 41. Camera controller; 42. First connecting rod; 43. Second connecting rod; 5. Guide frame; 6. Lifting sling; 7. Lifting frame; 8. Crane; 9. Equipment to be lifted. Detailed Implementation

[0037] This utility model provides a semi-automatic vision-guided self-locking lifting device and lifting mechanism to solve the technical problem in the prior art that connection failure or loosening is easily caused by the failure of the electronic lock.

[0038] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0039] Please see Figures 1 to 3 The first aspect of this utility model provides a semi-automatic vision-guided self-locking lifting device, comprising:

[0040] The hoisting clamp 1 is used to install under the boom, and a ring of locking grooves 10 is provided on the side wall of the hoisting clamp 1.

[0041] The lifting base 2 is used to install on the object to be lifted. The lifting base 2 has a mounting position 20 that matches the shape of the lifting block 1. The side of the mounting position 20 is provided with a plurality of hollow parts arranged around the circumference of the mounting position 20.

[0042] Multiple locking elements 3 are provided in the hollow part. The locking elements 3 are rotatably connected to the lifting base 2. At least part of the locking elements 3 is located in the installation position 20. When the lifting block 1 is inserted into the installation position 20, the locking elements 3 are pushed to rotate to avoid the lifting block 1. When the locking groove 10 is aligned with the locking elements 3, the locking elements 3 rotate and reset under their own weight and lock into the locking groove 10.

[0043] Camera assembly 4, the camera 40 of camera assembly 4 is installed at the bottom of hoisting block 1, camera assembly 4 is used to capture images below hoisting block 1.

[0044] In the operation of this embodiment, when the hoisting block 1 moves downward from a height to prepare for hooking the object to be hoisted, the user observes the image of the camera 40 while positioning the hoisting block 1 close to the lifting device base 2 of the object to be hoisted. After the hoisting block 1 moves downward until it abuts against the surface of the mounting position 20, the mounting position 20 will guide the hoisting block 1 to continue moving downward until the hoisting block 1 contacts the locking member 3. The hoisting block 1 then pushes the locking member 3 to rotate and avoid the hoisting block 1. When the locking groove 10 is just aligned with the locking member 3, the locking member 3 rotates and resets under its own weight and locks into the locking groove 10, realizing the self-locking of the lifting device. Then, the lifting arm is used to move the object to be hoisted. After moving to the corresponding position, the locking member 3 can be moved out of the locking groove 10 by rotating it outward from the mounting position 20, thus unlocking the lifting device.

[0045] As can be seen from the above process, when the locking groove 10 is aligned with the locking member 3, the locking member 3 rotates and inserts into the locking groove 10 by its own gravity, thereby achieving self-locking and preventing problems with the sensor and electrical control system of the automatic hook-off device, which could lead to connection failure or loosening.

[0046] Compared with the prior art, the advantages of this embodiment are as follows: First, it has a good self-locking effect, eliminating the need for electronic locking as in the prior art, thus reducing the risk of connection failure or loosening due to problems with the sensors and electronic locking system of the automatic hook-off device. Second, it provides accurate positioning and connection. In this embodiment, the installation position 20 matches the shape of the hoisting block 1, ensuring that the locking groove 10 of the hoisting block 1 aligns perfectly with the locking member 3 during installation, and the locking member 3 is inserted into the locking groove 10, achieving accurate positioning and connection. Third, it provides high connection stability. After the locking member 3 is engaged in the locking groove 10, the vertical movement of the hoisting block 1 is restricted, and the outer peripheral side of the locked hoisting block 1 and the inner peripheral side of the installation position 20 can restrict the horizontal displacement of the hoisting block 1, resulting in minimal potential swaying and high connection stability.

[0047] In one specific embodiment, such as Figure 1As shown, a feasible mating structure between the lifting device base 2 and the locking member 3 is further provided. The lifting device base 2 includes a base plate 22 and multiple triangular seats 21 for enclosing and forming an installation position 20. That is, the multiple triangular seats 21 are arranged circumferentially around the same axis of the base plate 22 to enclose and form a funnel-shaped installation position 20. The multiple triangular seats 21 are fixedly connected to the base plate 22, and gaps are left between adjacent triangular seats 21 to form a hollow part. The locking member 3 includes a snap-fit ​​block 30 and a snap-fit ​​post 31. The snap-fit ​​block 30 can be swung by a pin. The locking pin 31 is dynamically connected to the triangular base 21, and the locking block 30 is integrally connected to the locking block 30. When the locking block 1 is installed on the lifting base 2, the locking pin 31 is arranged on the side of the locking block 30 adjacent to the installation position 20. The swing trajectory of the locking pin 31 is at least partially located in the locking groove 10. That is, the locking pin 31 can be located in the locking groove 10 when it is rotated and reset. In specific implementation, the reset rotation of the locking block 30 can swing on the triangular base 21 towards the installation position 20 so that the locking pin 31 is locked in the locking groove 10.

[0048] The snap-fit ​​block 30 is oscillatingly connected to the triangular base 21 via a pin. This means that the snap-fit ​​block 30 has a fitting slot, with both ends of the slot penetrating through. A pin is provided on the inner wall of the fitting slot, and the triangular base has a hole for inserting the pin. The snap-fit ​​block fits onto the triangular base using the fitting slot, and the pin is inserted into the hole on the triangular base.

[0049] In one embodiment, when the locking pin 31 is engaged in the locking groove 10, at least one surface of the locking block 30 abuts against the surface of the hoisting locking block 1. In specific implementation, when the locking pin 31 is engaged, the contact between the surface of the locking block 30 and the surface of the hoisting locking block 1 can enhance the connection stability, share the force and reduce shaking, and effectively avoid the problem of connection shaking.

[0050] Based on the above embodiments, in one embodiment, as follows: Figure 1 As shown, the locking block 30 is a triangular block. The rotational connection between the triangular block and the triangular base 21 is arranged near one corner of the triangular block so that the locking member 3 can rotate and reset under its own gravity after rotation. That is, the arrangement of the rotational connection (i.e., the pin) being biased towards one corner allows the locking block 30 to store gravitational potential energy after being pushed and rotated. Then, when the locking groove 10 is aligned with the locking block 30, the locking block 30 has room to rotate, so it will convert the stored gravitational potential energy into kinetic energy to rotate and reset and lock into the locking groove 10, thereby realizing the locking member 3 rotating and resetting under its own gravity. In addition, the triangular block has high stability and can better withstand the pressure of lifting the locking block 1, making the entire connection structure more evenly stressed.

[0051] In this embodiment, the triangular block of the snap-fit ​​block 30 is a near-obtuse angle triangular block, and the obtuse angle is rotatably connected to the triangular base 21 by a pin, and the corner adjacent to the obtuse angle is chamfered.

[0052] In one embodiment, in order to improve the rebound capability of the locking member 3, a return spring is also compressed between the inner wall of the snap-fit ​​block 30 and the triangular seat 21. Specifically, when the hoisting snap-fit ​​block 1 is inserted into the mounting position 20 and the locking member 3 is pushed, the rotation of the hoisting snap-fit ​​block 1 compresses the return spring inside it. Then, when the snap-fit ​​groove 10 is aligned with the locking member 3, the locking member 3 will be reset and inserted into the locking member 3 under the elastic force of the return spring. Compared with the solution without a return spring, the return spring improves the rebound capability of the locking member 3.

[0053] In one embodiment, to improve guidance efficiency, a guide frame 5 is installed on the top of the lifting base 2. The frame wall of the guide frame 5 is arranged around the mounting position 20. The guide frame 5 is hollow, that is, the guide frame 5 is composed of an upper circular frame, a lower circular frame and multiple connecting strips. The diameter of the upper circular frame is larger than the diameter of the lower circular frame. The two ends of the multiple connecting strips are connected and fixed to the upper and lower circular frames. In specific implementation, the guide frame 5 installed on the lifting base 2 has high recognition, and the camera component 4 can more easily recognize the guide frame 5, resulting in higher guidance efficiency.

[0054] In this embodiment, as Figure 1 As shown, the inner side of the guide frame 5 is inclined, and the inclination angle of the guide frame 5 is the same as the inclination angle of the inner side of the mounting position 20. When the hoisting block 1 moves to the guide frame 5, if the hoisting block 1 abuts against the guide frame 5, the hoisting block 1 can be installed on the mounting position 20 along the same inclination angle, making the installation process smoother.

[0055] In one embodiment, to increase the connection safety between the lifting block 1 and the lifting base 2, the bottom of the lifting base 2 is provided with a limit detection sensor for detecting the position of the lifting block 1 and a proximity sensor for detecting the position of the locking member 3. In specific implementation, the proximity sensor will detect whether the lifting device has been in place, and the limit detection sensor will detect whether the locking post 31 of the locking member 3 is in the locking groove 10, so as to reduce lifting accidents and increase the connection safety between the lifting block 1 and the lifting base 2.

[0056] In one specific embodiment, such as Figure 2 and Figure 3 As shown, a feasible structure for the hoisting block 1 is further provided. Along the direction from the top to the bottom of the hoisting block 1, the diameter of the hoisting block 1 decreases. That is, the hoisting block 1 is a frustum-shaped block that is larger at the top and smaller at the bottom. The mounting position 20 is also a conical space that matches the shape of the hoisting block 1. In specific implementation, even if the hoisting block 1 shakes, the conical hoisting component can be guided into the mounting position 20 by the conical guide surface of the mounting position 20 without affecting the connection between the two.

[0057] In one embodiment, such as Figure 2 and Figure 3As shown, the top of the hoisting block 1 is provided with multiple vertical plates, and the vertical plates are provided with fasteners for fixing the slings 6, which are used to connect with the slings 6.

[0058] In one specific embodiment, to facilitate the unlocking of the locking element 3, a driving element is also included. The driving element is connected to multiple locking elements 3 in a transmission manner. The driving element is used to drive the multiple locking elements 3 to separate from the locking groove 10. In specific implementation, after the object to be hoisted is hoisted to the destination, the operator of the hoisting equipment can remotely issue an instruction to control the buckle of the automatic locking mechanism of the funnel-shaped base to open. After the operator confirms that the buckle is fully opened through the limit switch, he controls the driving element to pull the locking element 3 to unlock, and then separates the hoisting block 1 from the lifting base 2, realizing remote automatic unhooking without manual pulling, making unlocking more convenient.

[0059] In one embodiment, a feasible structure for the drive component is provided. The drive component includes multiple bidirectional controllable hydraulic telescopic devices. The hydraulic telescopic devices are fixedly connected to the lifting base 2. The hydraulic telescopic rod of the hydraulic telescopic device is rotatably hinged to the locking block 30 of the locking member 3. In specific implementation, the hydraulic telescopic device drives the hydraulic telescopic rod to move away from the locking block 30, pulling the locking block 30 of the locking member 3 to rotate outward, so that the locking pin 31 disengages from the locking groove 10 to achieve unlocking.

[0060] In another embodiment, an alternative structure for the drive component is provided. The drive component includes a hydraulic cylinder, a piston rod, and multiple connecting rod assemblies. The piston rod is installed inside the hydraulic cylinder and is slidably connected to the hydraulic cylinder. The connecting rod assembly includes a first connecting rod, a second connecting rod, and a third connecting rod. One end of the first connecting rod is pivotally connected to the piston rod, and the other end of the first connecting rod is pivotally connected to one end of the second connecting rod. The other end of the second connecting rod is pivotally connected to the locking block 30. One end of the third connecting rod is pivotally connected to the first connecting rod, and the other end of the third connecting rod is pivotally connected to the second connecting rod. The second and third connecting rods are pivotally connected by a rotating mounting seat fixed to the lifting base 2 or fixed to the object to be lifted (transfer vehicle, etc.). In specific implementation, when the hydraulic cylinder is pressurized, it drives the piston rod to push upward, thereby driving the first connecting rod upward. The second and third connecting rods are restricted by the degrees of freedom of the fixed rotating mounting seat. The second connecting rod will drive the third connecting rod to move outward, thereby pulling the locking block 30 of the locking component 3 to rotate outward, so that the locking pin 31 disengages from the locking groove 10 to achieve unlocking.

[0061] In one specific embodiment, such as Figure 2 As shown, in order to ensure that the camera component 4 naturally shoots the image vertically downwards, the camera 40 is rotated and installed at the bottom of the hoisting block 1. In specific implementation, even when the hoisting block 1 is tilted to a certain extent, the camera 40 can still rely on its own gravity to rotate and maintain a natural vertical downward shooting image.

[0062] In one embodiment, such as Figure 2 As shown, a feasible structure for the camera component 4 is further provided, wherein the hoisting block 1 is provided with a through hole 11, and the through hole 11 is oriented in the same direction as the height of the hoisting block 1, i.e., as shown in the figure. Figure 2 The vertical direction; the camera assembly 4 includes a camera controller 41 and a camera 40, the camera controller 41 and the camera 40 are connected by a signal; the camera controller 41 is snapped into the through hole 11, the camera 40 is connected and fixed with a first connecting rod 42, the camera controller 41 is connected and fixed with a second connecting rod 43, the first connecting rod 42 and the second connecting rod 43 are both located in the through hole 11, the first connecting rod 42 and the second connecting rod 43 maintain a gap with the through hole 11, the first connecting rod 42 and the second connecting rod 43 are hinged, in specific implementation, the hoisting block 1 is tilted, under the action of gravity, the camera 40 will drive the first connecting rod 42 and the second connecting rod 43 to rotate and adjust, so that the camera 40 returns to a naturally hanging state.

[0063] Among them, camera 40 can be a Wi-Fi camera (Wireless Fidelity), which transmits the process of the Wi-Fi camera searching for the funnel-shaped base of the target device back to the remote monitoring device in real time.

[0064] In one specific embodiment, such as Figure 4 As shown, in order to increase the stability of the hoisting block 1, a lifting frame 7 is also included. The hoisting block 1 is hoisted to the bottom of the lifting frame 7 by the inner lifting buckle and the lifting rope. The lifting frame 7 is connected to the bottom of the hoisting machine hopper by the outer lifting buckle and the lifting rope.

[0065] In one embodiment, the hanger 7 is a square frame consisting of two squares, an inner and an outer square, welded from rectangular sheet metal parts. The rectangular sheet metal parts of the hanger 7 can be fitted with hooks, each with holes on its upper and lower sides for easy passage and fixing of the sling 6. Support rods for the hanger 7 are installed at the four lower corners of the outer side of the hanger 7, facilitating easy movement of the hanger 7 between the storage area and the work area before and after lifting operations. The outer hooks can fix the sling 6, connecting it upwards to the lifting equipment; the inner hooks can also fix the sling 6, connecting it downwards to the lifting device.

[0066] The outer lifting buckle is flexibly adjustable to accommodate different lifting tools; the inner lifting buckle on the lifting frame 7 can also be flexibly adjusted according to the size of the target lifting equipment.

[0067] Please see Figures 4 to 7 The second aspect of this utility model provides a semi-automatic vision-guided lifting device, comprising:

[0068] Crane 8;

[0069] The aforementioned self-locking lifting device has its lifting block 1 attached to the boom of the crane 8 via a lifting rope (e.g., Figure 4 As shown), the self-locking lifting device's base 2 and drive unit are installed on the equipment to be lifted 9 (e.g., Figure 5 (As shown).

[0070] During the operation of this embodiment, the user observes the position of the lifting base 2 on the equipment 9 to be lifted through the camera 40, and uses the boom of the crane 8 to lift the clamp 1 to above the lifting base 2 (e.g., Figure 6 As shown), the boom then descends, completing the connection and fixation of the lifting block 1 and the lifting base 2 (as shown). Figure 7 (As shown), and then lift the equipment to be lifted to the designated destination, and then control and unlock it.

[0071] This embodiment uses semi-automatic visual guidance to avoid software or hardware failures that may occur in the automation system on existing hoisting equipment, which could lead to misoperation. For example, if the system mistakenly believes that the spreader has been unlocked or locked, it may cause a hoisting accident. Operators' trust in the system may cause them to ignore potential manual inspection needs.

[0072] In one embodiment, the equipment 9 to be lifted is an excavator. A lifting base 2 is fixed on the top of the excavator. The crane 8 locks the lifting block 1 onto the lifting base 2 to connect the crane 8 and the excavator, thereby enabling the excavator to be lifted to the designated destination.

[0073] In summary, this embodiment features a targeted design for the lifting block 1 and the lifting base 2 to ensure that the lifting device's swaying can be locked and detected under certain conditions; it incorporates a vision system for guidance, and includes indicator lights and manual confirmation steps to ensure a standardized and safe operation; the overall structural framework has undergone limited analysis and follows relevant lifting device standards; and it uses reliable industrial-grade electrical and sensor products to protect various electrical components, lenses, and wires from impact.

[0074] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

[0075] Finally, it should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A semi-automatic vision-guided self-locking spreader, characterized in that, The lifting clamp comprises: a lifting clamp block, a side wall of the lifting clamp block being provided with a ring of clamping grooves; a lifting clamp base, the lifting clamp base being provided with a mounting position matching the shape of the lifting clamp block, a side surface of the mounting position being provided with a plurality of hollow portions arranged around the circumference of the mounting position; a plurality of locking members arranged in the hollow portions, the locking members being rotatably connected to the lifting clamp base, at least a part of the locking members being arranged in the mounting position, the locking members being pushed to rotate to avoid the lifting clamp block when the lifting clamp block is inserted into the mounting position, the locking members rotating to return and being clamped in the clamping grooves under the gravity of the locking members when the clamping grooves are aligned with the locking members; a camera assembly, a camera of the camera assembly being mounted on the bottom of the lifting clamp block, the camera assembly being used to capture images below the lifting clamp block.

2. The self-locking sling of claim 1, wherein, The lifting clamp base comprises a plurality of triangular seat bodies used to form the mounting position, adjacent triangular seat bodies being left empty to form the hollow portions; the locking member comprises a clamping block and a clamping column, the clamping block being swingably connected to the triangular seat body through a pin shaft, the clamping column being integrally connected to the clamping block, the clamping column being arranged on the side of the clamping block adjacent to the mounting position; when the lifting clamp block is arranged on the lifting clamp base, the swing track of the clamping column is at least partially arranged in the clamping groove.

3. The self-locking sling of claim 2, wherein, The clamping block is a triangular block, the rotatable connection between the triangular block and the triangular seat body being arranged adjacent to one corner of the triangular block, so that the locking member can rotate to return under the gravity of the locking member after rotating.

4. The self-locking sling of claim 2, wherein, A return spring is further compressed between the inner wall of the clamping block and the triangular seat body.

5. The self-locking sling of claim 1, wherein, A guide outer frame is mounted on the top of the lifting clamp base, a frame wall of the guide outer frame being arranged around the mounting position, the guide outer frame being hollow.

6. The self-locking sling of claim 1, wherein, The lifting clamp base is provided with a limit detection sensor used to detect the position of the lifting clamp block and a proximity sensor used to detect the position of the locking member.

7. The self-locking sling of claim 1, wherein, The diameter of the lifting clamp block decreases in the direction from the top to the bottom of the lifting clamp block.

8. The self-locking sling of claim 1, wherein, The camera is rotatably connected to the bottom of the lifting clamp block.

9. The self-locking sling of claim 8, wherein, The lifting clamp block is provided with a through hole, the through direction of the through hole being the same as the height direction of the lifting clamp block; The camera assembly comprises a camera controller and the camera, the camera controller being signal connected to the camera; The camera controller is clamped on the through hole, the camera being connected and fixed with a first connecting rod, the camera controller being connected and fixed with a second connecting rod, the first connecting rod and the second connecting rod being arranged in the through hole, a gap being left between the first connecting rod, the second connecting rod and the through hole, the first connecting rod and the second connecting rod being hingedly connected.

10. A hoisting device, characterized in that The lifting clamp comprises: a lifting machine; the self-locking lifting clamp of any one of claims 1 to 9, the lifting clamp block of the self-locking lifting clamp being arranged on the lifting arm of the lifting machine through a lifting rope, the lifting clamp base of the self-locking lifting clamp being arranged on the equipment to be lifted.

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