Fish dart fishing device

Abstract

The utility model relates to the technical field of fish dart salvage, in particular to a fish dart salvage device. The device comprises a fishing barrel, a fishing hook is arranged at the front end of the fishing barrel, a pull rope is connected to the rear side of the fishing barrel, a thread inlet seam extending in the front-back direction is formed in the circumferential face of the fishing barrel, and the fishing hook comprises a large hole allowing a tail cap to penetrate through and a bayonet used for stopping a step structure between the tail cap and a rod body; a placement block is arranged on the rear portion of an inner cavity of the fishing barrel, a penetrating hole extending in the front-back direction is formed in the placement block, the central axis of the penetrating hole is close to the central axis of the fishing barrel in the front-back direction, a threading channel and a detachable plugging piece are further arranged on the placement block, and the threading channel is communicated with the penetrating hole and the wire inlet seam and used for allowing a fishing wire to penetrate into the penetrating hole from the wire inlet seam. The plugging piece is used for plugging the threading channel after the fishing line penetrates into the penetrating hole. The fishing line and the front end of the fishing socket are arranged at intervals through the through hole, blocking between the tail cap and the front end of the fishing socket is avoided, and the fishing line is prevented from disengaging through the blocking piece.

Description

Technical Field

[0001] This utility model relates to the field of harpoon retrieval technology, specifically to a harpoon retrieval device. Background Technology

[0002] like Figure 1 As shown, a fishing harpoon consists of a shaft with a harpoon tip at the front and a cap at the rear. The fishing line is attached to the center of the cap's rear end, and the cap's diameter is larger than the shaft's diameter, creating a step for easy gripping. A hook is attached to the front of the shaft and hooks onto a slingshot. In actual use, the operator holds the cap with their hand or a harpoon release device, pulls back the slingshot, and releases the cap, launching the harpoon with the fishing line to shoot the fish. However, in practice, the harpoon may become stuck in the water, and since the fishing line is generally thin, pulling directly on it can easily break it, causing the harpoon to be lost.

[0003] like Figure 2 , 3 The image shows a prior art harpoon retrieval device, comprising a cylindrical retrieval tube with a retrieval hook at the front end for hooking the harpoon's tail. Specifically, the retrieval hook has a large hole and multiple locking slots in the center, arranged in a circular array around the large hole and connected to it. The diameter of the large hole is larger than the tail cap, allowing the tail cap to pass through. The width of the locking slots is larger than the harpoon shaft but smaller than the tail cap, used to stop against a stepped structure and hook the tail cap. The front side of the locking slots is concave, facilitating the tail cap to slide into the central large hole. A line hole is provided at the rear end for the fishing line to pass through. A line inlet slit is formed on the circumference of the retrieval tube, with the inner side of the line inlet slit connecting the line hole and the retrieval hole.

[0004] When it is necessary to retrieve the fishing harpoon, the fishing line is inserted into the inner cavity of the retrieval tube through the line inlet. After the fishing line is straightened, the retrieval device hangs on the fishing line under the action of gravity. The fishing line directly contacts the side wall of the line hole and the side wall of one of the latches, and at this time, the fishing line is basically parallel to the axis of the retrieval tube. The assembly of the retrieval device and the fishing line is completed.

[0005] Release the retrieval tool, and it will slide down the fishing line. When the front end touches the tail cap, the tail cap will slide along the front side of the latch into the large hole and into the inner cavity of the retrieval tube until the rod is inserted into the latch. The stepped structure and the inner side of the latch will stop the rod, and the latch will hook the tail cap. Pull the pull line to retrieve the harpoon.

[0006] The aforementioned harpoon retrieval device can retrieve harpoons, but in actual use, such as... Figure 2 , 3As shown in Figure 4, because the fishing line is in direct contact with both the front and rear end faces, and the entire fishing line is far from the axis of the retrieval tube (i.e., far from the large central hole), and because the front end of the fishing line is connected to the center of the rear end of the cap, when the retrieval device slides down, the upper part of its front end face, facing away from the latch, is easily blocked by the rear end of the cap. This makes it difficult for the cap to slide into the large central hole, making it hard to complete the retrieval in one go, resulting in inconvenience in use. Furthermore, in actual use, there is a risk that the fishing line may come out through the connecting seam of the retrieval device, causing retrieval failure. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a fishing dart retrieval device that uses perforations to keep the fishing line close to the center line of the retrieval tube, arranges the fishing line and the front end of the retrieval tube at intervals to avoid the tail cap blocking the front end of the retrieval tube, and uses a sealing component to prevent the fishing line from coming out.

[0008] To address the aforementioned technical problems, the present invention provides a fishing dart retrieval device, comprising a retrieval tube, a retrieval hook at the front end and a pull rope connected to the rear side, and a line inlet slit extending in the front-to-back direction on the circumferential surface of the retrieval tube. The retrieval hook includes a large hole for the tail cap to pass through and a locking slot for a stepped structure to stop the tail cap and the rod body. A mounting block is provided at the rear of the inner cavity of the retrieval tube, and a through hole extending in the front-to-back direction is provided on the mounting block. In the front-to-back direction, the central axis of the through hole is arranged close to the central axis of the retrieval tube. The mounting block is also provided with a line threading channel and a removable sealing member. The line threading channel connects the through hole and the line inlet slit and is used for the fishing line to pass through the through hole from the line inlet slit. The sealing member is used to seal the line threading channel after the fishing line passes through the through hole.

[0009] Furthermore, the side of the mounting block facing the inlet seam is connected to the inner wall of the retrieval tube, and the side of the mounting block facing away from the inlet seam is spaced apart from the inner wall of the retrieval tube.

[0010] Furthermore, the retrieval hook includes a U-shaped component disposed at the front end of the retrieval tube. The opening of the U-shaped component is arranged facing the inlet seam, and the front side of the U-shaped component is an inclined surface extending toward the interior of the retrieval tube. The opening constitutes the bayonet, and the front side and the front inner cavity of the retrieval tube constitute the large hole.

[0011] Furthermore, a chamfer is provided between the front end of the retrieval tube and its inner cavity, and the inner side of the chamfer extends to the U-shaped component.

[0012] Furthermore, the rear end of the mounting block is provided with an inwardly extending threaded hole, the threaded hole passing through the wire passage, and the sealing member includes a screw threadedly connected in the threaded hole.

[0013] Furthermore, the axis of the threaded through hole extends in the front-to-back direction, and the through hole is a round hole.

[0014] Furthermore, the retrieval tube is a rectangular tube.

[0015] Furthermore, the retrieval tube is a rectangular tube, and the inlet seam is located in the middle of the narrow side of the retrieval tube, and the pull rope is connected to the side of the retrieval tube opposite to the inlet seam.

[0016] Furthermore, the length of the placement block is half the length of the retrieval tube, and the rear end of the placement block is flush with the rear end of the retrieval tube.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) Using the threading channel, the fishing line can be threaded from the inlet seam into the perforation. The sealing part can be used to stop the fishing line after it enters the perforation, so as to prevent the fishing line from coming out and affecting the fishing effect. The center line of the perforation is arranged close to the center line of the fishing tube. When fishing, after the fishing line is tightened, the fishing line will contact the upper side wall of the perforation. With the support of the side wall of the perforation, the center line of the fishing tube is almost parallel to the fishing line. Then, the inner wall of the front end of the fishing tube will be spaced apart from the fishing line. This prevents the rear end of the tail cap from blocking the end face of the fishing tube when the fishing tube slides down along the fishing line and the front end hits the tail cap. The tail cap can slide smoothly into the perforation and get stuck in the slot, thus improving the fishing efficiency.

[0019] Meanwhile, the placement block is located at the rear of the inner cavity of the retrieval tube, which makes the center of gravity of the entire retrieval device rearward, maintaining a rear-heavy and front-light state when sliding down. When the retrieval hook contacts the tail cap, the collision can easily cause the front end of the retrieval tube to tilt up, making it easier for the tail cap to slide into the bayonet.

[0020] (2) The side of the mounting block facing away from the inlet seam is arranged at intervals with the inner wall of the retrieval tube, so that the center of gravity of this retrieval device is arranged close to the side of the inlet seam. When the fishing line is tightened, the side of the retrieval tube with the mounting block will flip to the lower part under the action of gravity, and then the threading channel and the inlet seam will be arranged downwards. On the one hand, the fishing line can slide down the smooth inner wall of the hole to reduce resistance. On the other hand, it can prevent the fishing line from getting stuck in the inlet seam or the threading channel, which would affect the retrieval effect.

[0021] (3) The front side of the U-shaped part is an inclined surface, and the tail cap slides along the inclined surface toward the inner cavity of the retrieval tube, which facilitates retrieval. At the same time, the large opening formed by the U-shaped part and the front end of the retrieval tube can reduce the resistance of the device entering the water.

[0022] (4) The front end of the retrieval tube is chamfered, which makes it easier for the tail cap to contact the inclined surface of the U-shaped part.

[0023] (5) The retrieval tube is a rectangular tube with straight sides to reduce the possibility of collision with the tail cap. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a fish spear in the existing technology.

[0025] Figure 2 This is an isometric view of a harpoon fishing device in use from above.

[0026] Figure 3 This is an isometric view of a harpoon fishing device in use, viewed from below.

[0027] Figure 4 This is a diagram showing the state of a harpoon retrieval device in the prior art when retrieving a harpoon.

[0028] Figure 5 This is a first-direction isometric view of a harpoon retrieval device according to Embodiment 1 of this utility model.

[0029] Figure 6 This is a second-direction isometric view of a harpoon retrieval device according to Embodiment 1 of this utility model.

[0030] Figure 7 This is an isometric view of the retrieval tube in the first direction of Embodiment 1 of this utility model.

[0031] Figure 8 This is a second-direction isometric view of the retrieval tube in Embodiment 1 of this utility model.

[0032] Figure 9 This is a cross-sectional view of the retrieval tube in Embodiment 1 of this utility model.

[0033] Figure 10 This is a cross-sectional view of the salvage device in Embodiment 1 of this utility model.

[0034] In the picture: 1. Fishing harpoon; 11. Rod body; 12. Tail cap; 13. Dart tip; 14. Hook; 15. Fishing line; 16. Step structure;

[0035] 2. Salvage tube; 21. Salvage hook; 211. Large hole; 212. Bayonet; 22. Thread hole; 23. Thread inlet; 24. Pull rope; 3. Pull hole; 4. U-shaped part; 41. Inclined surface; 5. Mounting block; 51. Through hole; 52. Threading channel; 53. Screw; 54. Threaded hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings: Specific Implementation Example 1:

[0038] refer to Figures 5 to 10 The present invention relates to a fishing dart retrieval device, comprising a retrieval tube, a retrieval hook at the front end of the retrieval tube, and a pull rope connected to the rear side. A slit extending in the front-to-back direction is provided on the circumference of the retrieval tube. The retrieval hook includes a large hole for the tail cap to pass through and a locking slot for a stepped structure to stop between the tail cap and the rod body.

[0039] The rear of the inner cavity of the retrieval tube is provided with a mounting block. The mounting block has a perforation extending in the front-to-back direction. In the front-to-back direction, the central axis of the perforation is arranged close to the central axis of the retrieval tube. The mounting block is also provided with a line-passing channel and a detachable sealing component. The line-passing channel connects the perforation and the line-entry seam and is used to allow the fishing line to pass through the perforation from the line-entry seam. The sealing component is used to seal the line-passing channel after the fishing line has passed through the perforation.

[0040] This design utilizes a threading channel to allow the fishing line to pass through from the inlet seam into the perforation. A sealing element prevents the line from slipping out after entering the perforation, ensuring efficient retrieval. The perforation's centerline is positioned close to the centerline of the retrieval tube. During retrieval, after the line is tightened, it contacts the upper sidewall of the perforation. Supported by this sidewall, the centerline of the retrieval tube is nearly parallel to the line. This spacing between the inner wall of the retrieval tube's front end and the line prevents the tail cap from blocking the tube's end face when the retrieval tube slides down the line and contacts the tail cap. This ensures the tail cap can smoothly slide into the large hole along the side of the hook and hook onto the hook, improving retrieval efficiency.

[0041] Meanwhile, the placement block is located at the rear of the inner cavity of the retrieval tube, which makes the center of gravity of the entire retrieval device rearward, maintaining a rear-heavy and front-light state when sliding down. When the retrieval hook contacts the tail cap, the collision can easily cause the front end of the retrieval tube to tilt up, making it easier for the tail cap to slide into the bayonet.

[0042] Preferably, in this embodiment, such as Figure 6 , 7 As shown in Figure 9, the side of the mounting block facing the inlet seam is connected to the inner wall of the retrieval tube, and the threading channel extends inward along the depth direction of the inlet seam to the inner joint of the perforation. The side of the mounting block facing away from the inlet seam is spaced apart from the inner wall of the retrieval tube. This arrangement ensures that the center of gravity of the retrieval device is close to the side facing the inlet seam. When the fishing line is tightened, under the action of gravity, the side of the retrieval tube with the mounting block will automatically flip to the lower part, thus aligning the threading channel and the inlet seam downward. This also reduces water resistance, allowing the fishing line to slide down the smooth inner wall of the perforation, reducing resistance, and preventing the fishing line from getting stuck in the inlet seam or threading channel, which would affect the retrieval effect.

[0043] Preferably, in this embodiment, such as Figure 8 , 9As shown, the retrieval hook includes a U-shaped component at the front end of the retrieval tube. The opening of the U-shaped component faces the inlet seam, and the front side of the U-shaped component is an inclined surface extending into the retrieval tube.

[0044] The opening width of the U-shaped component is smaller than the diameter of the harpoon's tail cap but larger than the diameter of the rod. The cross-sectional dimension of the distance between the end of the U-shaped component facing away from the inlet seam and the end of the inner cavity of the retrieval tube facing away from the inlet seam is larger than the size of the tail cap. The tail cap can slide into the interior of the retrieval tube along the distance between the two. When the tail cap is completely submerged in the U-shaped component, the opening of the U-shaped component falls down and engages with the rod. The stepped structure between the rear end of the U-shaped component and the tail cap and rod is used to stop and hook the harpoon. The U-shaped component as a whole forms a sliding rail hook, the opening of the U-shaped component forms the locking slot of the retrieval hook, and the front side of the U-shaped component and the front inner cavity of the retrieval tube form the retrieval hook.

[0045] With this design, the front side is inclined, and the tail cap slides along the inclined surface toward the inner cavity of the retrieval tube, which facilitates retrieval. At the same time, the large opening formed by the U-shaped part and the front end of the retrieval tube can reduce the resistance of the device entering the water.

[0046] Meanwhile, in this embodiment, a chamfer is provided between the front side of the U-shaped part and the side wall of the opening, so that the front side of the entire U-shaped part is inwardly tapered, and the U-shaped part is symmetrically arranged along the center line of the perforation. The midpoint of the width of the opening of the U-shaped part contacts the fishing line. In this way, when the U-shaped part contacts the tail cap, the inward structure of the front side of the U-shaped part and its opening can be used to keep the tail cap inside the U-shaped part and guide the sliding of the tail cap.

[0047] Meanwhile, the retrieval hook uses the opening of the U-shaped part to form a bayonet. With only one bayonet and one large hole, when the retrieval device hooks the harpoon and finds that it is not necessary to retrieve it or cannot retrieve it and has to give up the retrieval, simply shake the fishing line of the harpoon itself to separate the retrieval device from the harpoon, or pull the pull rope to make the retrieval tube rotate, which will cause the opening of the U-shaped part to flip upward, so that the harpoon is separated from the retrieval device.

[0048] Preferably, in this embodiment, a chamfer is also provided between the front end of the retrieval tube and its inner cavity sidewall, and the inner side of the chamfer extends to the U-shaped component. This allows the tail cap to more easily contact the inclined surface of the U-shaped component.

[0049] Preferably, in this embodiment, such as Figure 9 As shown, the rear end of the mounting block has an inwardly extending threaded hole. The axis of the threaded hole extends in the front-to-back direction and passes through the line-passing channel. The sealing component includes a screw threaded into the threaded hole. When the fishing line enters the hole, the bolt is screwed into the threaded hole, blocking the line from coming out between the line-entry slot and the hole. In other embodiments, the sealing component can also be a plug plate adapted to the line-entry slot, used to seal the line-entry slot.

[0050] Preferably, in this embodiment, the perforation is a circular hole, and the axis of the perforation coincides with the center line of the retrieval tube. This arrangement facilitates the retrieval device sliding on the fishing line in a fixed posture. Of course, in other embodiments, the axis of the perforation can also be arranged between the center line of the retrieval tube and the line inlet slit, and the generatrix of the side of the perforation facing away from the line inlet slit coincides with the center line of the retrieval tube. This can further keep the fishing line in the center line position of the retrieval tube, facilitating retrieval.

[0051] Preferably, in this embodiment, the retrieval tube is a rectangular tube. Specifically, the retrieval tube is a rectangular tube with a rectangular cross-section, and the line inlet is located in the middle of the narrow side of the retrieval tube. The pull rope is connected to the pull hole on the rear side of the retrieval tube, opposite to the line inlet. With this configuration, after the fishing line is straightened, the long side of the retrieval tube is arranged vertically, and the narrow side is arranged horizontally, resulting in a larger large hole, which facilitates the entry of the harpoon. At the same time, the rectangular structure and the pull rope connection on the side opposite to the line inlet ensure that the pull rope is on the lower side at the water inlet. When the retrieval is abandoned, rotating the pull rope will rotate the retrieval tube, thereby causing the U-shaped opening on the lower side to rotate and complete the separation of the retrieval device from the harpoon.

[0052] Meanwhile, in this embodiment, such as Figure 9 As shown, the length of the mounting block is half the length of the retrieval tube, and the rear end of the mounting block is flush with the rear end of the retrieval tube. This ensures sufficient support for the fishing line in the retrieval tube, maintaining a sufficient gap between the fishing line at the front of the retrieval tube and the inner wall of the front end, while also ensuring the center of gravity of the retrieval device is positioned sufficiently far back. Of course, in other embodiments, to meet practical usage requirements, the length of the mounting block can be one-third, two-thirds, etc., of the length of the retrieval tube.

[0053] The working process of this application:

[0054] When retrieving a harpoon, first thread the fishing line through the inlet seam into the hole, then screw a bolt into the threaded hole to separate the hole from the inlet seam and prevent the fishing line from coming out.

[0055] Straighten the fishing line, and under the influence of gravity, the side of the retrieval device with the support block flips downwards, simultaneously... Figure 9 As shown, the fishing line is spaced apart from the front end of the fishing tube, supported by the perforated inner wall.

[0056] Lower the pull rope, and the fishing tube slides down the fishing line. When the fishing hook at the front of the fishing tube contacts the tail cap, the tail cap first contacts the front side of the U-shaped part. The fishing tube continues to slide towards the harpoon through the front side until the tail cap is inside the U-shaped part. At this time, the opening of the U-shaped part falls down, and the step structure between the rear side of the U-shaped part, the tail cap, and the rod body stops, and the hook catches the harpoon.

[0057] Pull the rope to retrieve the fish spear.

[0058] When the hook snags the harpoon and it is determined that there is no need to retrieve it or that the retrieval should be abandoned, shaking the fishing line up and down or flipping the rope will detach the U-shaped part from the tail cap, ensuring the retrieval of the retrieval device.

[0059] In summary, the retrieval device of this utility model features a through-type retrieval tube with a U-shaped component forming a large opening at the front end. This reduces water resistance, increases the retrieval device's speed in the water, and amplifies the impact force upon entry. The thin-walled design of the retrieval tube allows it to better penetrate dense obstacles and aquatic plants, reaching the harpoon's position to hook the tail cap. The fishing line does not contact the inner wall of the retrieval tube, preventing the tail cap from obstructing the front end and improving the success rate of harvesting. If the harpoon is completely caught on an underwater object and cannot be pulled, preventing the retrieval device from detaching from the harpoon's tail, the retrieval device of this application can easily detach from the harpoon for retrieval, avoiding loss of the retrieval device.

[0060] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0061] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing this application and simplifying the description, and 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 this application. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0062] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A harpoon retrieval device, characterized in that, The device includes a fishing tube with a fishing hook at the front end and a pull rope connected to the rear. A line-feeding slit extending in the front-to-back direction is formed on the circumference of the fishing tube. The fishing hook includes a large hole for the tail cap to pass through and a locking mechanism for a stepped structure to stop the fish from passing through the tail cap and the rod. A mounting block is provided at the rear of the inner cavity of the fishing tube. A through hole extending in the front-to-back direction is formed on the mounting block, with the central axis of the through hole positioned close to the central axis of the fishing tube. The mounting block also includes a line-threading channel and a removable sealing element. The line-threading channel connects the through hole and the line-feeding slit, allowing the fishing line to pass through the through hole from the line-feeding slit. The sealing element seals the line-threading channel after the fishing line has passed through the through hole.

2. The harpoon retrieval device according to claim 1, characterized in that, The mounting block is connected to the inner wall of the retrieval tube on the side facing the inlet seam, and the mounting block is spaced apart from the inner wall of the retrieval tube on the side facing away from the inlet seam.

3. The harpoon retrieval device according to claim 2, characterized in that, The retrieval hook includes a U-shaped component disposed at the front end of the retrieval tube. The opening of the U-shaped component is arranged facing the inlet seam. The front side of the U-shaped component is an inclined surface extending toward the interior of the retrieval tube. The opening forms the bayonet. The front side and the front inner cavity of the retrieval tube form the large hole.

4. The harpoon retrieval device according to claim 3, characterized in that, The front end of the retrieval tube is chamfered between its front end and its inner cavity, and the inner side of the chamfer extends to the U-shaped part.

5. The harpoon retrieval device according to claim 1, characterized in that, The rear end of the mounting block is provided with an inwardly extending threaded hole, which passes through the wire passage, and the sealing member includes a screw threadedly connected in the threaded hole.

6. The harpoon retrieval device according to claim 5, characterized in that, The axis of the threaded hole extends in the front-to-back direction, and the through hole is a round hole.

7. The harpoon retrieval device according to claim 3, characterized in that, The salvage tube is a rectangular tube.

8. The harpoon retrieval device according to claim 7, characterized in that, The retrieval tube is a rectangular tube, and the inlet seam is located in the middle of the narrow side of the retrieval tube. The pull rope is connected to the side of the retrieval tube opposite to the inlet seam.

9. The harpoon retrieval device according to claim 1, characterized in that, The length of the placement block is half the length of the retrieval tube, and the rear end of the placement block is flush with the rear end of the retrieval tube.

Images