Inland river overwater salvage grabbing device
By designing an adjustable-length inland waterway salvage and grabbing device, the problem of existing devices being unable to adapt to different depths has been solved, improving salvage efficiency and ease of operation, and making it suitable for salvage operations in complex inland waterway environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG HEGUAN TECHNOLOGY GROUP CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-24
AI Technical Summary
The existing inland waterway salvage and grabbing devices have a fixed length and cannot be adjusted according to the actual salvage depth, making it difficult for operators to reach the target object in deeper waters and reducing salvage efficiency.
A retrieval device comprising a handle, a fixed tube, an extension tube, and a sliding gripper is designed. The length of the device and the synchronous gripping of the gripper are achieved by locking bolts and a drive frame, making it suitable for retrieval operations at different depths.
It achieves adjustable device length and flexible clamping operation, improving the efficiency and convenience of inland waterway salvage operations, and is suitable for various inland waterway salvage scenarios.
Smart Images

Figure CN224158430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water salvage devices, and in particular to a water salvage and grabbing device for inland waterways. Background Technology
[0002] Inland waterways have complex environments, often containing various floating and sunken objects that need to be salvaged and cleared, such as tree branches, garbage, and accidentally dropped tools. These salvage operations are of great significance for maintaining inland water quality, ensuring smooth water traffic, and recovering valuable items.
[0003] The existing salvage and grabbing devices used in inland waterway salvage operations have many shortcomings. Early salvage tools had simple structures, such as simple long poles with a single hook or clamp attached to the end.
[0004] Regarding the aforementioned technologies, it has been found that existing salvage and grabbing devices have a fixed length and cannot be adjusted according to the actual salvage depth. When encountering salvage operations in deeper waters, the insufficient tool length makes it difficult for operators to reach the target object, hindering the smooth progress of the salvage operation and significantly reducing salvage efficiency. Utility Model Content
[0005] This invention solves the problems in related technologies and proposes a device for salvaging and grabbing objects on inland waterways.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] A waterborne salvage and retrieval device for inland waterways includes a gripping frame, which comprises an outer frame and a holding frame. The holding frame is slidably mounted on the outer frame. A fixing tube is fixedly mounted on the lower end of the outer frame. An extension tube is slidably mounted on the lower end of the fixing tube. Locking bolts for locking the extension tube are provided on both sides of the fixing tube. A central shell is fixedly mounted on the lower end of the extension tube. A plurality of clamping claws are evenly mounted on the outer surface of the central shell along the circumferential direction. A drive frame for driving the plurality of clamping claws to clamp synchronously is also provided in the central shell.
[0008] As a preferred embodiment, the outer frame includes a frame shell and a positioning tube for mounting the fixing tube. The positioning tube is mounted on the lower end face of the frame shell and is fixedly connected to the frame shell.
[0009] As a preferred embodiment, the grip frame includes an arc-shaped grip plate, an outer plate seat, a positioning screw, a take-up wheel, and a locking nut. The outer plate seat is fixedly installed on the rear end face of the arc-shaped grip plate, the positioning screw is fixedly installed at the center of the front end face of the outer plate seat, the take-up wheel is rotatably installed on the positioning screw, and the locking nut is threadedly connected to the front end of the positioning screw.
[0010] As a preferred embodiment, movable seats are fixedly installed at both ends of the arc-shaped grip plate, and longitudinal sliding grooves are provided on both sides of the frame shell for the movable seats to slide.
[0011] As a preferred embodiment, the locking extension tube includes a sliding tube section and a connecting plate, the sliding tube section being slidably mounted on the lower end face of the fixed tube, and the connecting plate being fixedly mounted on the lower end of the sliding tube section.
[0012] As a preferred embodiment, the clamping claw includes a curved claw portion and a connecting rod, one end of which is rotatably connected to the middle of the curved claw portion, and the other end of which is rotatably connected to the outer surface of the central shell.
[0013] As a preferred embodiment, the drive frame includes a slide rod, a multi-head connector, and a pull rope. The slide rod is slidably mounted on the lower end of the central shell, and a spring supporting the slide rod to move downward is also provided in the central shell. The multi-head connector is fixedly mounted on the lower end of the slide rod. The upper end of the bent claw is rotatably connected to the multi-head connector. The lower end of the pull rope is fixedly connected to the slide rod, and the head of the pull rope is wound on the take-up reel.
[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This application, by setting a sliding grip frame, facilitates the operator's adjustment of the grip position. Through the cooperation of the fixed tube and extension tube, as well as the setting of locking bolts, the length of the device can be adjusted according to actual salvage needs, adapting to salvage operations at different depths. Several clamping claws and a drive frame installed on the central shell can achieve synchronous clamping of objects, improving salvage efficiency. Through the reasonable design and coordination of each component, it has advantages such as adjustable length, flexible gripping operation, and comfortable holding, effectively improving the efficiency and convenience of inland waterway salvage operations, and is suitable for various inland waterway salvage scenarios. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a perspective view of the clamping claw and drive frame cooperating in an embodiment of this utility model;
[0017] Figure 3 This is a perspective view of the grip frame, fixing tube, and extension tube in combination in an embodiment of this utility model;
[0018] Figure 4 yes Figure 3 A front view of the device shown;
[0019] Figure 5 This is a perspective view of the grip frame in an embodiment of this utility model.
[0020] In the diagram: 1. Grip frame; 11. Outer frame; 111. Frame shell; 112. Positioning tube; 113. Longitudinal slide groove; 12. Grip frame; 121. Arc-shaped grip plate; 122. Outer plate seat; 123. Positioning screw; 124. Rewinding wheel; 125. Locking nut; 126. Movable seat; 2. Fixed tube; 20. Locking bolt; 3. Extension tube; 31. Slide tube section; 32. Connecting plate; 4. Center shell; 5. Clamping claw; 51. Bent claw section; 52. Connecting rod; 6. Drive frame; 61. Slide rod; 62. Multi-head connecting seat; 63. Pull rope. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0024] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0027] Reference Figure 1 , Figure 2 and Figure 3As shown, an inland waterway salvage and grabbing device includes a gripping frame 1, which comprises an outer frame 11 and a gripping frame 12. The gripping frame 12 is slidably installed in the outer frame 11. A fixing tube 2 is fixedly installed at the lower end of the outer frame 11, and an extension tube 3 is slidably installed at the lower end of the fixing tube 2. Locking bolts 20 are provided on both sides of the fixing tube 2 to lock the extension tube 3. A central shell 4 is fixedly installed at the lower end of the extension tube 3. Several gripping claws 5 are evenly installed along the circumferential direction on the outer surface of the central shell 4, and a drive frame 6 is also provided in the central shell 4 to drive the several gripping claws 5 to grip synchronously. By setting the slidable gripping frame 12, it is convenient for the operator to adjust the gripping position, improving the comfort of operation. The cooperation of the fixing tube 2 and the extension tube 3, as well as the setting of the locking bolts 20, allows the length of the device to be adjusted according to the actual salvage needs, adapting to salvage operations at different depths. The several gripping claws 5 and the drive frame 6 installed on the central shell 4 can realize the synchronous gripping of objects, improving salvage efficiency.
[0028] Reference Figure 3 , Figure 4 and Figure 5 As shown, the outer frame 11 includes a frame shell 111 and a positioning tube 112 for mounting the fixing tube 2. The positioning tube 112 is installed on the lower end face of the frame shell 111 and is fixedly connected to the frame shell 111. The structural design of the frame shell 111 and the positioning tube 112 of the outer frame 11 provides stable support for the installation of the fixing tube 2, ensuring the stability of the overall structure of the device. The grip frame 12 includes an arc-shaped grip plate 121, an outer plate seat 122, a positioning screw 123, a winding wheel 124, and a locking nut 125. The outer plate seat 122 is fixedly installed on the rear end face of the arc-shaped grip plate 121, the positioning screw 123 is fixedly installed at the center of the front end face of the outer plate seat 122, the winding wheel 124 is rotatably installed on the positioning screw 123, and the locking nut 125 is threadedly connected to the front end of the positioning screw 123. The arc-shaped grip plate 121 of the grip frame 12 conforms to ergonomic design, improving grip comfort. The positioning screw 123, winding wheel 124, and locking nut 125 facilitate the winding and securing of the pull rope 63, thereby allowing for better control of the rope's length based on its intended use. Movable seats 126 are fixedly mounted at both ends of the arc-shaped grip plate 121, and longitudinal grooves 113 are provided on both sides of the frame shell 111 for the movable seats 126 to slide on. The movable seats 126 at both ends of the arc-shaped grip plate 121 engage with the longitudinal grooves 113 on both sides of the frame shell 111, enabling the grip frame 12 to slide smoothly within the outer frame 11, further improving operational flexibility.
[0029] Reference Figure 3 and Figure 4As shown, the locking extension tube 3 includes a sliding tube portion 31 and a connecting plate 32. The sliding tube portion 31 is slidably mounted on the lower end face of the fixed tube 2, and the connecting plate 32 is fixedly mounted on the lower end of the sliding tube portion 31. The structure of the sliding tube portion 31 and the connecting plate 32 of the extension tube 3 ensures smooth sliding of the extension tube 3 within the fixed tube 2, while the connecting plate 32 provides a stable connection for the installation of the central shell 4.
[0030] Reference Figure 1 and Figure 2 As shown, the gripper 5 includes a curved claw portion 51 and a connecting rod 52. One end of the connecting rod 52 is rotatably connected to the middle of the curved claw portion 51, and the other end of the connecting rod 52 is rotatably connected to the outer surface of the central shell 4. The structural design of the curved claw portion 51 and the connecting rod 52 of the gripper 5 allows the gripper 5 to rotate flexibly under the action of the drive frame 6, achieving effective gripping of objects of different shapes and sizes.
[0031] Reference Figure 1 and Figure 2 As shown, the drive frame 6 includes a slide rod 61, a multi-head connector 62, and a pull rope 63. The slide rod 61 is slidably mounted on the lower end of the central shell 4, and a spring supporting the downward movement of the slide rod 61 is also provided in the central shell 4. The multi-head connector 62 is fixedly mounted on the lower end of the slide rod 61. The upper end of the bent claw 51 is rotatably connected to the multi-head connector 62. The lower end of the pull rope 63 is fixedly connected to the slide rod 61, and the head of the pull rope 63 is wound on the take-up reel 124. The cooperation of the slide rod 61, the multi-head connector 62, and the pull rope 63 of the drive frame 6 controls the up and down movement of the slide rod 61 by the opening and closing of the pull rope 63, thereby driving the synchronous movement of the multi-head connector 62 and the clamping claw 5, realizing the clamping and releasing of objects, which is simple and convenient to operate.
[0032] In this embodiment, the length is first adjusted according to the actual retrieval depth requirements. Loosen the locking bolt 20, slide the extension tube 3, and adjust the length of the extension tube 3 extending out of the fixed tube 2. After adjustment, tighten the locking bolt 20 to lock the position of the extension tube 3. Before adjusting the length, loosen the locking nut 125 on the grip frame so that the winding rope 63 can be adjusted synchronously. After adjusting the length, the winding rope 63 can be fixed in a taut state for easy gripping and handling later.
[0033] The operator grips the curved grip plate 121, moves the device above the object to be retrieved, and then grips the grip frame 12 upwards. This causes the pull rope 63 to pull the slide bar 61 upwards. The slide bar 61 then moves the multi-head connector 62 upwards, which in turn pulls the upper end of the curved claw part 51, causing the clamping claw 5 to rotate inwards and clamp the object. When it is necessary to release the object, the pull rope 63 is released. Under the action of the spring, the slide bar 61 moves downwards, and the clamping claw 5 rotates outwards, releasing the object.
[0034] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.
Claims
1. A device for salvaging and grabbing on inland waterways, comprising a pole gripping frame (1), characterized in that: The grip frame (1) includes an outer frame (11) and a grip frame (12). The grip frame (12) is slidably installed in the outer frame (11). A fixing tube (2) is fixedly installed at the lower end of the outer frame (11). An extension tube (3) is slidably installed at the lower end of the fixing tube (2). Locking bolts (20) for locking the extension tube (3) are provided on both sides of the fixing tube (2). A central shell (4) is fixedly installed at the lower end of the extension tube (3). Several clamping claws (5) are evenly installed on the outer surface of the central shell (4) along the circumferential direction. A drive frame (6) for driving the several clamping claws (5) to clamp synchronously is also provided in the central shell (4).
2. An inland water salvage grabbing device according to claim 1, characterized in that: The outer frame (11) includes a frame shell (111) and a positioning tube (112) for mounting the fixing tube (2). The positioning tube (112) is mounted on the lower end face of the frame shell (111) and is fixedly connected to the frame shell (111).
3. An inland water salvage grabbing device according to claim 1, characterized in that: The grip (12) includes an arc-shaped grip plate (121), an outer plate seat (122), a positioning screw (123), a winding wheel (124), and a locking nut (125). The outer plate seat (122) is fixedly installed on the rear end face of the arc-shaped grip plate (121). The positioning screw (123) is fixedly installed at the center of the front end face of the outer plate seat (122). The winding wheel (124) is rotatably installed on the positioning screw (123). The locking nut (125) is threadedly connected to the front end of the positioning screw (123).
4. An inland water salvage grabbing device according to claim 3, characterized in that: The two ends of the arc-shaped grip plate (121) are fixedly installed with movable seats (126), and the two sides of the frame shell (111) are provided with longitudinal sliding grooves (113) for the movable seats (126) to slide.
5. An inland water salvage grabbing device according to claim 3, characterized in that: The locking extension tube (3) includes a sliding tube section (31) and a connecting plate (32). The sliding tube section (31) is slidably installed on the lower end face of the fixed tube (2), and the connecting plate (32) is fixedly installed on the lower end of the sliding tube section (31).
6. An inland water salvage grabbing device according to claim 2, characterized in that: The clamping claw (5) includes a curved claw portion (51) and a connecting rod (52). One end of the connecting rod (52) is rotatably connected to the middle of the curved claw portion (51), and the other end of the connecting rod (52) is rotatably connected to the outer surface of the central shell (4).
7. An inland water salvage grapple according to claim 6, characterised in that: The drive frame (6) includes a slide rod (61), a multi-head connector (62), and a pull rope (63). The slide rod (61) is slidably mounted on the lower end of the central shell (4), and a spring supporting the slide rod (61) to move downward is also provided in the central shell (4). The multi-head connector (62) is fixedly mounted on the lower end of the slide rod (61). The upper end of the bent claw (51) is rotatably connected to the multi-head connector (62). The lower end of the pull rope (63) is fixedly connected to the slide rod (61), and the head of the pull rope (63) is wound on the winding wheel (124).