A multi-form easy-to-store object retriever using a quick-release claw module

Abstract

The present invention discloses a multi-form easy-to-store object-retrieving device using a quick-release claw module, including a handle, a drive unit, an angle adjustment rod, a hinge, a claw base assembly and a quick-release claw module. The handle is connected to the first angle adjustment rod, and the angle adjustment rods are connected in sequence through hinges. The last angle adjustment rod is connected to the claw base assembly, and the claw base assembly is connected to the quick-release claw module through a quick-release structure. The present invention introduces a variety of claw modules that can be quickly replaced, and at the same time designs a lockable angle adjustment rod, which can be flexibly adjusted to a variety of form modes for use, and is easy to store and carry. The user installs a suitable claw on the object-retrieving device, adjusts the angle adjustment rod to an appropriate form, and operates the switch on the handle to conveniently adjust the claw opening and closing and realize a multi-purpose and multi-scenario object-retrieving function. The present invention can play an effective role in daily life, helping the elderly and the disabled, pets going out, environmental protection and public welfare, etc.

Description

Technical Field

[0001] The present invention belongs to the field of auxiliary tools, and more specifically relates to a multi-form easy-to-storage object retriever using a quick-install claw module. Background Art

[0002] In daily life, people need to use assistive tools to pick up items that they cannot reach or are inconvenient to pick up directly by themselves, for example, items that are too high / too low / too small / the space for picking up items is too narrow / cannot be observed normally / are not suitable for direct hand picking, etc. These include but are not limited to the following scenarios and occasions: the elderly cannot bend or squat normally due to knee or waist diseases and need to pick up fallen items; people with physical disabilities need assistive tools to complete the action of picking up objects and their needs due to physical obstacles; pet owners need to pick up pet feces and discard them into the trash can; sanitation workers and environmental volunteers need to quickly collect and sort garbage in public places to carry out environmental protection work. Summary of the invention

[0003] Currently available retriever products are usually composed of handles, rods, claws and other parts. They have a single function and purpose, and are limited in the shape, size, material and type of the target objects to be picked up, and cannot be applied to a variety of usage scenarios. The claws are not modular in design and cannot be customized and expanded for specific purposes. If the claws are damaged or contaminated during use, they cannot be replaced. The retriever can only be scrapped as a whole or purchased separately, resulting in redundant waste. The retriever rod is usually fixed, or a telescopic rod is used to achieve simple length changes, which limits and affects the function and range of retrieval. The retriever takes up a large space and is difficult to store and carry.

[0004] In order to overcome the deficiencies of the above-mentioned existing retriever products, the present invention aims to provide a multi-form easy-to-storage retriever that adopts a quick-release claw module.

[0005] The multi-form easy-to-storage object retriever using a quick-release claw module provided by the present invention comprises a handle, a drive unit, an angle adjustment rod, a hinge, a claw base assembly and a quick-release claw module. The handle is connected and fixed to the first angle adjustment rod by a screw or a buckle, the angle adjustment rods are connected in sequence by the hinge, the last angle adjustment rod is connected and fixed to the claw base assembly by a screw or a buckle, and the claw base assembly is connected to the quick-release claw module by a quick-release structure; the quick-release claw module comprises a universal claw, a pet feces claw, a small object claw in a narrow space, a disposable claw, a strong magnetic suction head, and a user-customized claw; the drive unit comprises a battery, a main switch, a two-way self-reset switch, a wiring harness, a DC motor with a lead screw, and the battery The main switch and the two-way self-resetting switch are installed in the handle, the wiring harness connects the battery, the main switch, the two-way self-resetting switch and the DC motor with a lead screw, and the DC motor with a lead screw is installed in the angle adjustment rod by screws; the claw base assembly includes a claw housing, a left claw base, a right claw base, a driving slider and a core shaft, wherein the left claw base and the right claw base are installed in the claw housing, connected to the driving slider through the core shaft, and the driving slider is sleeved onto the DC motor with a lead screw by a threaded fit.

[0006] The hinged part is a locking knob assembly, which includes a locking knob, a locking plate, a driving disk and a knob anti-detachment cover. The angle adjustment rod is provided with a toothed circular hole in the shaft area, and the locking plate engages with the toothed circular hole of the angle adjustment rod to achieve angle locking; by rotating the locking knob 90 degrees clockwise, the driving disk is driven to rotate, so that the locking plate is separated from the toothed circular hole of the angle adjustment rod to achieve unlocking; after adjusting the angle adjustment rod to the desired shape, the locking knob is rotated 90 degrees counterclockwise to achieve re-locking of the angle shape of the angle adjustment rod.

[0007] The hinged part is an angle adjustment motor assembly, which includes an angle adjustment motor, an angle adjustment wiring harness and an angle adjustment switch. The mounting hole of the angle adjustment motor is fixed to the end rotating shaft surface of the angle adjustment rod by screws, and the rotating shaft of the angle adjustment motor is fixed to the end rotating shaft surface of another connected angle adjustment rod by screws. The angle adjustment wiring harness connects the angle adjustment motor, the angle adjustment switch and the battery. The angle adjustment switch is fixed to the handle. The user can control the angle shape of the angle adjustment rod by adjusting the angle adjustment switch on the handle.

[0008] The hinged part is a multi-form memory angle adjustment motor assembly, which includes a memory angle adjustment motor, a memory angle adjustment harness, a form control module, a form access switch and an angle adjustment switch. The memory angle adjustment motor has a built-in Hall sensor to detect its current rotor angle information and transmit it to the form control module. The form control module can store several form memory positions to control the rotor angle of the memory angle adjustment motor. The form access switch includes a form memory setting key and several form mode keys. The number of form mode keys is set according to demand and can be expanded. The memory angle adjustment harness connects the memory angle adjustment motor, the form control module, the form access switch, the angle adjustment switch and the battery. When the form memory setting key is pressed and then the form mode key is pressed, the form control module obtains and stores the current angle information of the memory angle adjustment motor; when the form mode key is pressed, the form control module controls the action of the memory angle adjustment motor and adjusts it to the corresponding memory angle, thereby realizing the function of adjusting the angle adjustment rod to the corresponding form mode.

[0009] The quick-release structure is a hole-shaft interference fit structure, an inner hole with a groove is provided on the claw base, a convex rib is provided on the quick-release claw module, the quick-release claw module is inserted into the claw base, and is fixed by the interference fit of the hole shaft and the convex rib groove.

[0010] The quick-loading structure is a groove and marble matching structure, a cylindrical hole and a marble limiting hole are arranged on the claw base, and a marble is arranged on the quick-loading claw module. After the quick-loading claw module is inserted into the claw base, the marble falls into the marble limiting hole to achieve fixation.

[0011] The quick-release structure is a side locking bolt structure. A cylindrical hole and a threaded hole are arranged on the claw base and the quick-release claw module. The quick-release claw module is inserted into the hole of the claw base and fixed by adjusting a hand screw.

[0012] The present invention introduces a variety of claw modules that can be quickly replaced, and designs a lockable angle adjustment rod, which can be flexibly adjusted to a variety of modes for use, and is easy to store and carry. The user installs a suitable claw on the retriever, adjusts the angle adjustment rod to the appropriate shape, and operates the switch on the handle to conveniently adjust the claw opening and closing and realize the multi-purpose and multi-scenario retrieval function. The present invention can play an effective role in daily life, helping the elderly and the disabled, pets going out, environmental protection and public welfare, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions for the specific implementation of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic structural diagram of a retriever according to a preferred embodiment of the present invention.

[0015] Figure 2 yes Figure 1 Schematic diagram of the floor plan.

[0016] Figure 3 It is a schematic diagram of the structure of the drive unit.

[0017] Figure 4 is an exploded view of the jaw base assembly.

[0018] Figure 5 It is a structural schematic diagram of the quick-release claw module.

[0019] Figure 6 It is a schematic diagram of adjusting the retriever to various morphological modes.

[0020] Figure 7 It is along Figure 2 Sectional view along line AA.

[0021] Figure 8 It is an exploded schematic diagram of a hinged part using a locking knob assembly.

[0022] Fig. 9 It is a schematic diagram of an embodiment in which an articulated part adopts an angle adjustment motor assembly.

[0023] Fig.10 It is along Fig. 9 A cross-sectional view along line BB.

[0024] Fig.11 It is a structural schematic diagram of an articulated part using an angle adjustment motor assembly.

[0025] Fig.12 It is a schematic diagram of the structure of the articulated part using a multi-form memory angle adjustment motor assembly.

[0026] Fig.13 It is a schematic diagram of the quick-install structure. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific examples. It should be understood that the following examples are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] See also Figures 1 to 13 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0029] Figure 1 FIG. 1 shows a schematic diagram of the structure of a retriever (storage state) according to a preferred embodiment of the present invention, Figure 1 It can be seen that the object retriever includes: a handle 1, a drive unit 2, angle adjustment rods 3 (several), hinges (several, the locking knob assembly 19 in the figure), a claw base assembly 5 and a quick-release claw module (in this embodiment, a universal claw 6). Figure 2 yes Figure 1 A plan view of Figure 2 It can be seen that the handle 1 is connected and fixed to the first angle adjustment rod 3 by means such as screws or buckles, several angle adjustment rods 3 are connected in sequence by hinges, the last angle adjustment rod 3 is connected and fixed to the claw base assembly 5 by means such as screws or buckles, and the claw base assembly 5 is connected to the quick-release claw module through a quick-release structure. Figure 3 The schematic diagram of the structure of the driving unit is shown, the driving unit 2 includes a battery 14, a main switch 15, a two-way self-resetting switch 16, a wiring harness 17, and a DC motor with a lead screw 18. The battery 14 is installed in the handle 1, the main switch 15 and the two-way self-resetting switch 16 are installed on the handle 1, the wiring harness 17 connects the battery 14, the main switch 15, the two-way self-resetting switch 16 and the DC motor with a lead screw 18, and the DC motor with a lead screw 18 is installed in the angle adjustment rod 3 through a fastener such as a screw; Figure 4 Shown is an exploded schematic diagram of the jaw base assembly, wherein the jaw base assembly 5 includes a jaw housing 51, a left jaw base 52, a right jaw base 53, a driving slider 54 and a core shaft 55, wherein the left jaw base 52 and the right jaw base 53 are installed in the jaw housing 51, connected to the driving slider 54 through the core shaft 55, and the driving slider 54 is connected to the lead screw DC motor 18 through a threaded fitting.

[0030] Figure 5The schematic diagram of the structure of the quick-loading claw module used in the present invention is shown. The quick-loading claw module includes a universal claw 6, a pet feces claw 9, a small object claw in a narrow space 10, a disposable claw 11, a strong magnetic suction head 12, and a user-customized claw 13; the quick-loading claw module includes two claws that cooperate with each other on the left and right, which are respectively connected to the left claw base 52 and the right claw base 53 through a quick-loading structure. When the quick-loading claw module is a universal claw 6, it is used to grab conventional objects. When the quick-loading claw module is a pet feces claw 9, it is used to pick up feces left by pets. When the left and right pet feces claws are closed, there is enough space inside, and a plastic bag can be pre-installed inside the claw before use to avoid contamination. When the quick-loading claw module is a small object claw 10 in a narrow space, it is used to achieve object picking in a narrow space and when the target is a small object. When the quick-loading claw module is a disposable claw 11, it is used to pick up harmful or contaminated objects and then discard and replace them with new claws. When the quick-loading claw module is a strong magnetic suction head 12, it is used to pick up iron target objects. When the quick-loading claw module is a user-customized claw 13, it is used for user-defined object picking targets and purposes.

[0031] Figure 7 FIG. 2 shows a cross-sectional view of a hinged member according to the present invention as a locking knob assembly. The locking knob assembly 19 includes a locking knob 20, a locking plate 21, a drive disk 22, and a knob anti-drop cover 23. Figure 8 The angle adjustment rod 3 is provided with a toothed circular hole in the shaft area, and the locking piece 21 is engaged with the toothed circular holes of the two hinged angle adjustment rods 3 at the same time to achieve angle locking. By rotating the locking knob 20 90 degrees clockwise, the driving disk 22 is driven to rotate, so that the locking piece 21 is separated from the toothed circular hole of the angle adjustment rod 3 to achieve unlocking. After adjusting the angle adjustment rod 3 to the desired shape, the locking knob 20 is rotated 90 degrees counterclockwise to achieve the angle shape of the angle adjustment rod 3 being re-locked.

[0032] Fig. 9 The embodiment schematic diagram of the hinged member constructed according to the present invention is a motor assembly for adjusting the angle, Fig.10 Shown along Fig. 9 A cross-sectional view of line BB, Fig.11 A structural schematic diagram of an angle adjustment motor assembly is shown, wherein the angle adjustment motor assembly 24 includes an angle adjustment motor 25, an angle adjustment harness 26 and an angle adjustment switch 27. The mounting hole of the angle adjustment motor 25 is fixed to the end rotating shaft surface of the angle adjustment rod 3 by means of fasteners such as screws, and the rotating shaft of the angle adjustment motor 25 is fixed to the end rotating shaft surface of another corresponding angle adjustment rod 3 by means of fasteners such as screws. The angle adjustment harness 26 connects the angle adjustment motor 25, the angle adjustment switch 27 and the battery 14. The angle adjustment switch 27 is fixed to the handle 1. The user can control the angle shape of the angle adjustment rod 3 by adjusting the angle adjustment switch 27 on the handle 1.

[0033] Fig.12 The schematic diagram of the structure corresponding to the case where the hinged member constructed according to the present invention is a multi-form memory angle adjustment motor assembly is shown. The multi-form memory angle adjustment motor assembly 28 includes a memory angle adjustment motor 29, a memory angle adjustment harness 30, a form control module 31, a form access switch 32 and an angle adjustment switch 33. The memory angle adjustment motor 29 has a built-in Hall sensor to detect its current rotor angle information and transmit it to the form control module 31. The form control module 31 can store a number of form memory positions to control the rotor angle of the memory angle adjustment motor 29. The form access switch 32 includes a form memory setting key 42 and a number of form memory settings. Mode key 43, the number of morphology mode keys is set according to demand and can be expanded, the memory angle adjustment harness 30 connects the memory angle adjustment motor 29, the morphology control module 31, the morphology access switch 32, the angle adjustment switch 33 and the battery 14, when the morphology memory setting key 42 is pressed, and then the single morphology mode key 43 is pressed, the morphology control module 31 obtains and stores the current angle information of each memory angle adjustment motor 29; when the single morphology mode key 43 is pressed, the morphology control module 31 controls the action of each memory angle adjustment motor 29, adjusts it to the corresponding memory angle, and realizes the function of adjusting the angle adjustment rod 3 to the corresponding morphology mode.

[0034] The quick-install structure used in the present invention can be a hole-shaft interference fit structure, a groove and marble fit structure, or a side locking bolt structure. Fig.13 A brief description is given. In the embodiment of the quick-loading structure as a hole-shaft interference fit structure, a grooved inner hole 35 is provided on the left claw base 52 and the right claw base 53, and a convex rib pin 37 is provided on the universal claw 6. The universal claw 6 is inserted into the left claw base 52 and the right claw base 53, and fixed by the interference fit of the grooved inner hole 35 and the convex rib pin 37. In the embodiment of the quick-loading structure as a groove and marble fit structure, a marble limiting hole 38 is provided on the left claw base 52 and the right claw base 53, and a marble 39 is provided on the universal claw 6. The universal claw 6 is inserted into the left claw base 52 and the right claw base 53, and fixed by the marble 39 falling into the marble limiting hole 38. In an embodiment where the quick-release structure is a side locking bolt structure, cylindrical holes and threaded holes 40 are provided on the left claw base 52, the right claw base 53 and the universal claw 6, and the universal claw 6 is inserted into the left claw base 52 and the right claw base 53, and fixed by adjusting the hand screw 41.

[0035] The embodiments of the present invention can select any one of the three types of hinges (ratchet locking unit, self-locking connecting rod unit and locking pin unit) as the hinge, and select one of the three quick-install structures (hole-shaft interference fit structure, groove and marble fit structure, side locking bolt structure) as the quick-install structure.

[0036] Figure 6The example of achieving different bending angle states of the object picker by adjusting the hinge and unlocking the angle adjustment rod 3 is shown, including but not limited to the following states: fully folded state 56, which takes up the least space and volume and is convenient for carrying. Fully extended state 57, the longest length, used to grab the target object at the farthest distance. Partially extended states 58, 59, medium length, used to grab the target object at a medium distance. Right-angle bending states 60, 61, 62: used to grab the target object in the higher or lower plane area. Free bending states 63, 64: used for various other picking scenes and ranges.

[0037] Obviously, according to the present invention, a variety of claw modules that can be quickly replaced are introduced, and a lockable angle adjustment rod is designed, which can be flexibly adjusted to a variety of modes for use, and is easy to store and carry. The workflow of the present invention is as follows: the user installs a suitable claw on the object retriever, operates the hinge to adjust the angle adjustment rod to the appropriate shape, and uses the switch on the handle to control the opening and closing of the claw to achieve a multi-purpose and multi-scenario object retrieval function.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. The above embodiment of the present invention can also be modified in various ways. That is, all simple, equivalent changes and modifications made according to the claims and the description of the present invention fall within the protection scope of the claims of the present invention. The contents not described in detail in the present invention are all conventional technical contents.

Claims

1. A multi-form easy-to-receive object picker using a quick-release claw module, comprising a handle, a drive unit, a plurality of angle adjustment rods, a plurality of hinges, a claw base assembly and a quick-release claw module, characterized in that: The handle is connected and fixed to the first angle adjustment rod by screws or buckles, the angle adjustment rods are connected in sequence by the hinge, the last angle adjustment rod is connected and fixed to the claw base assembly by screws or buckles, and the claw base assembly is connected to the quick-release claw module by a quick-release structure; The quick-release claw module includes universal claws, pet feces claws, small object claws in narrow spaces, disposable claws, strong magnetic suction heads, and user-customized claws; The driving unit comprises a battery, a main switch, a two-way self-reset switch, a wiring harness, and a DC motor with a lead screw, wherein the battery is installed in the handle, the main switch and the two-way self-reset switch are installed on the handle, the wiring harness connects the battery, the main switch, the two-way self-reset switch and the DC motor with a lead screw, and the DC motor with a lead screw is installed in the angle adjustment rod by screws; The clamping jaw base assembly comprises a clamping jaw housing, a left clamping jaw base, a right clamping jaw base, a driving slider and a core shaft, wherein the left clamping jaw base and the right clamping jaw base are installed in the clamping jaw housing, connected with the driving slider through the core shaft, and the driving slider is sleeved on the lead screw DC motor through threaded fitting; The hinged part is a locking knob assembly, which includes a locking knob, a locking plate, a driving disk and a knob anti-detachment cover. The angle adjustment rod is provided with a toothed circular hole in the shaft area, and the locking plate engages with the toothed circular hole of the angle adjustment rod to achieve angle locking; by rotating the locking knob 90 degrees clockwise, the driving disk is driven to rotate, so that the locking plate is separated from the toothed circular hole of the angle adjustment rod to achieve unlocking; after adjusting the angle adjustment rod to the desired shape, the locking knob is rotated 90 degrees counterclockwise to achieve re-locking of the angle shape of the angle adjustment rod.

2. A multi-form easy-to-receive object picker using a quick-release claw module, comprising a handle, a drive unit, a plurality of angle adjustment rods, a plurality of hinges, a claw base assembly and a quick-release claw module, characterized in that: The handle is connected and fixed to the first angle adjustment rod by screws or buckles, the angle adjustment rods are connected in sequence by the hinge, the last angle adjustment rod is connected and fixed to the claw base assembly by screws or buckles, and the claw base assembly is connected to the quick-release claw module by a quick-release structure; The quick-release claw module includes universal claws, pet feces claws, small object claws in narrow spaces, disposable claws, strong magnetic suction heads, and user-customized claws; The driving unit comprises a battery, a main switch, a two-way self-reset switch, a wiring harness, and a DC motor with a lead screw, wherein the battery is installed in the handle, the main switch and the two-way self-reset switch are installed on the handle, the wiring harness connects the battery, the main switch, the two-way self-reset switch and the DC motor with a lead screw, and the DC motor with a lead screw is installed in the angle adjustment rod by screws; The clamping jaw base assembly comprises a clamping jaw housing, a left clamping jaw base, a right clamping jaw base, a driving slider and a core shaft, wherein the left clamping jaw base and the right clamping jaw base are installed in the clamping jaw housing, connected with the driving slider through the core shaft, and the driving slider is sleeved on the lead screw DC motor through threaded fitting; The hinged part is an angle adjustment motor assembly, which includes an angle adjustment motor, an angle adjustment wiring harness and an angle adjustment switch. The mounting hole of the angle adjustment motor is fixed to the end rotating shaft surface of the angle adjustment rod by screws, and the rotating shaft of the angle adjustment motor is fixed to the end rotating shaft surface of another connected angle adjustment rod by screws. The angle adjustment wiring harness connects the angle adjustment motor, the angle adjustment switch and the battery. The angle adjustment switch is fixed to the handle. The user can control the angle shape of the angle adjustment rod by adjusting the angle adjustment switch on the handle.

3. A multi-form easy-to-receive object picker using a quick-release claw module, comprising a handle, a drive unit, a plurality of angle adjustment rods, a plurality of hinges, a claw base assembly and a quick-release claw module, characterized in that: The handle is connected and fixed to the first angle adjustment rod by screws or buckles, the angle adjustment rods are connected in sequence by the hinge, the last angle adjustment rod is connected and fixed to the claw base assembly by screws or buckles, and the claw base assembly is connected to the quick-release claw module by a quick-release structure; The quick-release claw module includes universal claws, pet feces claws, small object claws in narrow spaces, disposable claws, strong magnetic suction heads, and user-customized claws; The driving unit comprises a battery, a main switch, a two-way self-reset switch, a wiring harness, and a DC motor with a lead screw, wherein the battery is installed in the handle, the main switch and the two-way self-reset switch are installed on the handle, the wiring harness connects the battery, the main switch, the two-way self-reset switch and the DC motor with a lead screw, and the DC motor with a lead screw is installed in the angle adjustment rod by screws; The clamping jaw base assembly comprises a clamping jaw housing, a left clamping jaw base, a right clamping jaw base, a driving slider and a core shaft, wherein the left clamping jaw base and the right clamping jaw base are installed in the clamping jaw housing, connected with the driving slider through the core shaft, and the driving slider is sleeved on the lead screw DC motor through threaded fitting; The hinged part is a multi-form memory angle adjustment motor assembly, which includes a memory angle adjustment motor, a memory angle adjustment harness, a form control module, a form access switch and an angle adjustment switch. The memory angle adjustment motor has a built-in Hall sensor to detect its current rotor angle information and transmit it to the form control module. The form control module stores several form memory positions to control the rotor angle of the memory angle adjustment motor. The form access switch includes a form memory setting key and several form mode keys. The number of form mode keys is set according to demand and can be expanded. The memory angle adjustment harness connects the memory angle adjustment motor, the form control module, the form access switch, the angle adjustment switch and the battery. When the form memory setting key is pressed and then the form mode key is pressed, the form control module obtains and stores the current angle information of the memory angle adjustment motor; when the form mode key is pressed, the form control module controls the action of the memory angle adjustment motor and adjusts it to the corresponding memory angle, thereby realizing the function of adjusting the angle adjustment rod to the corresponding form mode.

4. The object retriever according to claim 1, 2 or 3, characterized in that: The quick-release structure is a hole-shaft interference fit structure, an inner hole with a groove is provided on the claw base, a convex rib is provided on the quick-release claw module, the quick-release claw module is inserted into the claw base, and is fixed by the interference fit of the hole shaft and the convex rib groove.

5. The object retriever according to claim 1, 2 or 3, characterized in that: The quick-loading structure is a groove and marble matching structure, a cylindrical hole and a marble limiting hole are arranged on the claw base, and a marble is arranged on the quick-loading claw module. After the quick-loading claw module is inserted into the claw base, the marble falls into the marble limiting hole to achieve fixation.

6. The object retriever according to claim 1, 2 or 3, characterized in that: The quick-release structure is a side locking bolt structure. A cylindrical hole and a threaded hole are arranged on the claw base and the quick-release claw module. The quick-release claw module is inserted into the hole of the claw base and fixed by adjusting a hand screw.

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