Netting gear for river channel desilting
By designing a retractable inner and outer bag body structure, flexible adjustment of the opening size of the net bag is achieved, solving the problem of limited net fishing range, improving salvage efficiency and reducing labor intensity.
Patent Information
- Application Number
- CN202422556067.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The size of the existing fishing nets is fixed, resulting in a limited fishing range, which increases the labor intensity of the operator and reduces the salvage efficiency, especially when the wider river channels or garbage distribution is relatively dispersed.
A mesh for river channel silting is designed. Through the structure of the inner bag body and the outer bag body, the outer bag body is retractably arranged at both ends of the inner bag body, and the connection between the adjustment block and the screw is achieved to achieve flexible adjustment of the opening size of the mesh bag.
By adjusting the opening of the net pocket, the fishing range is expanded, the number of times the operator moves the net tool is reduced, the labor intensity is reduced and the salvage efficiency is improved.
Smart Images
Figure CN223214542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water conservancy projects, in particular to a net for clearing silt from a river. Background Art
[0002] To maintain river ecology, manual labor is required to remove floating debris and weeds from the surface, as well as silt from the riverbed, using scoop nets. However, existing scoop nets have relatively fixed openings, limiting their reach. For wider rivers or where debris is more dispersed, operators must frequently reposition the scoop nets, increasing labor intensity and reducing overall recovery efficiency.
[0003] Therefore, in order to solve the defect that the scooping range is limited due to the fixed opening size of the scoop net, it is necessary to propose a river dredging net. Utility Model Content
[0004] The purpose of the utility model is to provide a net for dredging rivers. Through the structure of the outer bag body being telescopically arranged at the left and right ends of the inner bag body, the opening size of the net bag can be adjusted according to actual needs, reducing the number of times the operator frequently moves the net, thereby effectively reducing labor intensity and improving salvage efficiency, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A net for river dredging, comprising a net bag and a handle, wherein the net bag is composed of an inner bag body and an outer bag body, wherein the left and right ends of the inner bag body are open and symmetrically provided with chute A, and a screw is fixedly installed at the portion of the inner bag body located at the lower end of the chute A;
[0007] The outer bag body is telescopically arranged at the left and right ends of the inner bag body, and an adjustment block slidably connected to the screw rod is welded in the outer bag body, and the adjustment block is fixed to the screw rod through a nut.
[0008] Preferably, the nuts are symmetrically arranged at the left and right ends of the adjusting block, and washers are provided between the nuts and the adjusting block.
[0009] Preferably, a connecting end is provided at the top end of the inner bag body, a handle is fixedly installed on the connecting end by a stud bolt, and a socket for engaging with the handle is provided at the bottom end of the connecting end.
[0010] Preferably, a slide groove B is provided at the back end of the inner bag body, and a slider slidably connected to the slide groove B is welded to the outer bag body.
[0011] Preferably, a slot is provided at the bottom of the outer bag body, and rake teeth are detachably connected to the slot by screws.
[0012] Preferably, the adjustment block is slidably connected to the slide groove A.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0014] The net for river dredging is telescopically arranged at the left and right ends of the inner bag through the outer bag body, so that the opening size of the net bag can be flexibly adjusted according to actual conditions. When facing a wider river or an area where garbage and aquatic plants are more dispersed, the outer bag body can be stretched outward to increase the opening size of the net bag, thereby expanding the range of the net for salvaging and being able to cover a larger area at one time, greatly improving the salvage efficiency, thereby reducing the frequency of the operator moving the net and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of adjusting the size of the net bag opening of the utility model;
[0017] Figure 3 This is a schematic diagram of the back structure of the net bag of the present invention;
[0018] Figure 4 For the utility model Figure 2 Enlarged view of point A;
[0019] Figure 5 This is a schematic diagram of the installation of rake teeth of the present invention.
[0020] In the figure: 1. Net bag; 11. Inner bag body; 111. Connecting end; 112. Stud bolt; 113. Socket; 114. Slide A; 115. Slide B; 116. Screw; 117. Nut; 118. Washer; 12. Outer bag body; 121. Adjustment block; 122. Slider; 123. Slot; 124. Rake teeth; 2. Handle. DETAILED DESCRIPTION
[0021] To solve the technical problem of how to adjust the opening size of the scoop net, please refer to Figure 1-Figure 4 , this embodiment provides the following technical solutions:
[0022] A net for dredging rivers includes a net bag 1 and a handle 2. The net bag 1 is composed of an inner bag body 11 and an outer bag body 12. The left and right ends of the inner bag body 11 are open, and slide grooves A114 are symmetrically provided at the upper and lower ends. A screw 116 is fixedly installed at the lower end of the slide groove A114 of the inner bag body 11.
[0023] The outer bag body 12 is telescopically arranged at the left and right ends of the inner bag body 11, and an adjustment block 121 is welded inside the outer bag body 12 and is slidably connected to the screw 116. The adjustment block 121 is fixed to the screw 116 by a nut 117. The nut 117 is symmetrically arranged at the left and right ends of the adjustment block 121, and a washer 118 is provided between the nut 117 and the adjustment block 121.
[0024] The adjusting block 121 is slidably connected to the sliding groove A114.
[0025] It should be noted that both the inner bag body 11 and the outer bag body 12 are made of stainless steel frames, and the surface of the frame is covered with wire mesh.
[0026] Specifically, when the opening of the net bag 1 needs to be enlarged, the nuts 117 symmetrically arranged on the left and right ends of the adjusting block 121 are loosened with a wrench, and the outer bag body 12 is stretched outward until the outer bag body 12 is stretched to the desired position. After the bag opening reaches the appropriate size, the nuts 117 are tightened with a wrench, and the adjusting block 121 is fastened to the screw rod 116 through the nuts 117 again;
[0027] When the opening of the net bag 1 needs to be reduced, use a wrench to loosen the nuts 117 at the left and right ends of the adjusting block 121, and then push the outer bag body 12 inward. The outer bag body 12 gradually shrinks toward the inner bag body 11, thereby reducing the opening size of the bag body. After the outer bag body 12 reaches the desired position, use a wrench to tighten the nuts 117 and tighten the adjusting block 121 to the screw 116 again.
[0028] It should be noted that the design of the washer 118 helps to increase the contact area between the nut 117 and the adjustment block 121. Under greater pressure, the pressure on the surface of the adjustment block 121 will be reduced, avoiding the formation of indentations on the surface of the adjustment block 121 and causing local deformation.
[0029] See also Figure 3 A slide groove B115 is provided at the back end of the inner bag body 11, and a slider 122 is welded to the outer bag body 12 and is slidably connected to the slide groove B115.
[0030] It should be noted that when the outer bag body 12 is extended to the left and right ends of the inner bag body 11, the sliding connection between the slider 122 and the slide groove B115 provides the outer bag body 12 with another support point in addition to the connection between the adjustment block 121 and the screw 116 and the slide groove A114. This multi-directional connection method makes the structure between the outer bag body 12 and the inner bag body 11 more stable, and can effectively prevent the outer bag body 12 from shaking or offsetting relative to the inner bag body 11.
[0031] See also Figure 2The top of the inner bag body 11 is provided with a connecting end 111, and the connecting end 111 is fixedly installed with the handle 2 through a stud bolt 112. The bottom of the connecting end 111 is provided with a socket 113 that is clamped with the handle 2.
[0032] It should be noted that during the assembly process of the handle 2, the snap-fit socket 113 provides a preliminary positioning for the installation of the handle 2. The operator can first insert the handle 2 into the socket 113 to preliminarily align the handle 2 with the connection end 111, and then use the stud bolt 112 to tighten it;
[0033] This double connection method greatly enhances the connection stability between the handle 2 and the inner bag body 11. This stable connection method ensures that the connection between the handle 2 and the inner bag body 11 will not loosen or separate during long-term, high-intensity dredging work.
[0034] See also Figure 5 A slot 123 is provided at the bottom of the outer bag body 12, and a rake tooth 124 is detachably connected to the slot 123 by screws.
[0035] It should be noted that, in the river dredging work, the presence of the rake teeth 124 greatly enhances the dredging ability of the net. With the rake teeth 124, the net can penetrate into the silt layer at the bottom of the river, loosen and pick up the compacted silt or the aquatic plants and debris entangled on the river bottom, and then collect them by the net bag 1. The advantage of the detachable connection by screws is that it is convenient to replace the rake teeth 124 of different shapes, sizes or types according to the dredging requirements of different rivers, and it is also convenient for the maintenance and replacement of the rake teeth 124 in the later stage.
[0036] Working principle: When the opening size of the net bag 1 needs to be adjusted for this river dredging net, use a wrench to loosen the nuts 117 symmetrically arranged on the left and right ends of the adjusting block 121, and then stretch the outer bag body 12 outward or push it inward until the outer bag body 12 moves to the desired position. After the opening of the bag body reaches the appropriate size, use a wrench to tighten the nut 117, and re-tighten the adjusting block 121 to the screw 116 through the nut 117 to complete the adjustment of the opening size of the net bag 1.
Claims
1. A net for river dredging, comprising a net bag (1) and a handle (2), characterized in that: The net bag (1) is composed of an inner bag body (11) and an outer bag body (12); the inner bag body (11) is open at the left and right ends, and has slidable grooves A (114) symmetrically formed at the upper and lower ends; a screw (116) is fixedly installed at the lower end of the slidable groove A (114) of the inner bag body (11); The outer bag body (12) is telescopically arranged at the left and right ends of the inner bag body (11), and an adjustment block (121) slidably connected to the screw rod (116) is welded inside the outer bag body (12), and the adjustment block (121) is fixed to the screw rod (116) through a nut (117).
2. The river dredging net according to claim 1, characterized in that: The nuts (117) are symmetrically arranged at the left and right ends of the adjustment block (121), and washers (118) are provided between the nuts (117) and the adjustment block (121).
3. The net for river dredging according to claim 1, characterized in that: The top end of the inner bag body (11) is provided with a connecting end (111), and the connecting end (111) is fixedly mounted with a handle (2) via a stud bolt (112). The bottom of the connecting end (111) is provided with a socket (113) for engaging with the handle (2).
4. The net for river dredging according to claim 1, characterized in that: A slide groove B (115) is provided at the back end of the inner bag body (11), and a slider (122) is welded to the outer bag body (12) and is slidably connected to the slide groove B (115).
5. The net for river dredging according to claim 1, characterized in that: A slot (123) is provided at the bottom of the outer bag body (12), and rake teeth (124) are detachably connected to the slot (123) via screws.
6. The net for river dredging according to claim 1, characterized in that: The adjusting block (121) is slidably connected to the sliding groove A (114).