A fish dart with automatic opening barb

Abstract

The utility model discloses a fish arrow fish dart with automatic opening barb, concretely relates to fish dart technical field, including upper dart pole and lower dart pole, the dart head is set up to the upper dart pole top, and the barb is seted down the dart head position and is established, the upper dart pole surface is seted up and has the through slot, the inside activity of through slot is provided with two groups of barb, the upper dart pole surface is provided with two groups of slide sleeve, and the slide sleeve is used for fixing two groups of barb, the lower dart pole top is provided with screw rod, and the screw rod is connected with the thread hole of the upper dart pole and is seted up and is established the screw thread, the lower dart pole bottom is provided with tail cap, the utility model discloses the dart head of upper dart pole top setting carries out puncture, and in the puncture process, the slide sleeve of upper dart pole surface setting is pushed, thereby making slide sleeve and barb separate each other, again using V type torsional spring's back force promotes two groups of barb to overturn to the outside of upper dart pole, thereby forming barb, to fixedly capture object, simultaneously, the utility model discloses the tail cap of lower dart pole bottom setting, can connect dart pole and rope body.

Description

Technical Field

[0001] This utility model relates to the field of fish spear technology, and more specifically, to a fish spear with automatically opening barbs. Background Technology

[0002] Fish spears and harpoons refer to fishing tools that combine the principles of harpoons (such as barbed harpoons). Their core function is to improve fishing efficiency through mechanical structures (such as barbed linkage).

[0003] The barb design of traditional fish spears and harpoons has the following drawbacks:

[0004] High depth of penetration is required: the barb must penetrate deep into the fish's body with the arrow before it can spring back; if the penetration is too shallow, it will easily cause the fish to come off the hook.

[0005] Operation relies on inertia: the barb needs to be deflected by the inertia generated by the high-speed movement of the arrow, resulting in insufficient stability;

[0006] Complex structure: Some designs employ multi-stage linkage mechanisms, increasing manufacturing difficulty and failure rate;

[0007] Therefore, a fish spear with automatically opening barbs is proposed to address the above problems. Utility Model Content

[0008] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a fish spear with an automatically opening barb, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a fish dart with automatically opening barbs, comprising an upper dart shaft and a lower dart shaft. The upper dart shaft has a dart head at its top and a barb below the dart head. The upper dart shaft has a through groove on its surface, and two sets of barbs are movably arranged inside the through groove. Two sets of sliding sleeves are movably arranged on the surface of the upper dart shaft to fix the two sets of barbs. The lower dart shaft has a screw at its top, and the screw is threadedly connected to a threaded hole in the upper dart shaft. The lower dart shaft has a tail cap at its bottom.

[0010] Preferably, a washer is fitted on the outer surface of the screw at the top of the lower dart shaft, and a spring is fitted on the outer surface of the upper dart shaft, with the bottom of the spring and the surface of the washer mutually blocking each other.

[0011] Preferably, a barrier plate is provided on the outer side of the barb, and the barrier plate and the top of the spring are mutually blocked.

[0012] Preferably, a bolt is provided inside the through groove of the upper dart shaft, a V-shaped torsion spring is sleeved on the outer surface of the bolt, and the V-shaped torsion spring is connected to the barb. A threaded hole is provided on the surface of the upper dart shaft, and the threaded hole is threadedly connected to the bolt.

[0013] Preferably, each set of barbs has a groove on its surface, and the two ends of the V-shaped torsion spring are respectively movably disposed inside the groove.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with the prior art, this utility model uses the dart head set at the top of the upper dart shaft to pierce the target. During the piercing process, it pushes the sliding sleeve set on the surface of the upper dart shaft, thereby separating the sliding sleeve from the barbs. Then, the return force of the V-shaped torsion spring pushes the two sets of barbs to flip to the outside of the upper dart shaft, thus forming barbs to fix the target. At the same time, this utility model can connect the dart shaft to the rope by the tail cap set at the bottom of the lower dart shaft. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure between the upper and lower dart shafts of this utility model.

[0018] Figure 3 This is a schematic diagram of the barbed connection structure of this utility model.

[0019] The attached diagram is labeled as follows: 1. Lower dart shaft; 2. Upper dart shaft; 3. Dart head; 4. Barb; 5. Washer; 6. Spring; 7. Barb; 8. Sliding sleeve; 9. Screw; 10. Threaded hole; 11. Bolt; 12. V-type torsion spring. Detailed Implementation

[0020] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figures 1 to 3 The illustrated fish spear with automatically opening barbs includes an upper spear shaft 2 and a lower spear shaft 1. The upper spear shaft 2 has a spearhead 3 at its top and a barb 4 below the spearhead 3. The surface of the upper spear shaft 2 has a through groove, inside which two sets of barbs 7 are movably arranged. The surface of the upper spear shaft 2 also has two sets of sliding sleeves 8 movably arranged, which are used to fix the two sets of barbs 7. The top of the lower spear shaft 1 has a screw 9, which is threadedly connected to a threaded hole 10 in the upper spear shaft 2. The bottom of the lower spear shaft 1 has a tail cap.

[0022] Specifically, the dart is pierced by the dart head 3 at the top of the upper dart shaft 2. During the piercing process, the sliding sleeve 8 on the surface of the upper dart shaft 2 is pushed, thereby separating the sliding sleeve 8 from the barbs 7. Then, the return force of the V-shaped torsion spring 12 pushes the two sets of barbs 7 to flip to the outside of the upper dart shaft 2, thereby forming barbs 7 to fix the target. At the same time, the tail cap at the bottom of the lower dart shaft 1 can connect the dart shaft to the rope.

[0023] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with reference to the specific working method described in detail:

[0024] like Figures 1 to 3 As shown, in a preferred embodiment, a washer 5 is fitted on the outer surface of the screw 9 at the top of the lower dart rod 1, and a spring 6 is fitted on the outer surface of the upper dart rod 2. The bottom of the spring 6 and the surface of the washer 5 are mutually blocked. Furthermore, through the spring 6 on the surface of the upper dart rod 2, after the two sets of barbs 7 are opened, the return force of the spring 6 pushes the sliding sleeve 8 to move upward, thereby blocking the two sets of barbs 7.

[0025] like Figures 1 to 3 As shown, in a preferred embodiment, a barrier plate is provided on the outer side of the barb 7, and the barrier plate and the top of the spring 6 block each other.

[0026] like Figures 1 to 3 As shown, in a preferred embodiment, a bolt 11 is provided inside the through groove of the upper dart shaft 2, and a V-shaped torsion spring 12 is sleeved on the outer surface of the bolt 11. The V-shaped torsion spring 12 is connected to the barbs 7. A threaded hole is provided on the surface of the upper dart shaft 2, and the threaded hole is threadedly connected to the bolt 11. Furthermore, through the threaded hole on the surface of the upper dart shaft 2 and the threaded connection with the bolt 11, the user can remove himself by rotating the bolt 11, thereby replacing the V-shaped torsion spring 12 sleeved on the outer surface of the bolt.

[0027] like Figures 1 to 3 As shown, in a preferred embodiment, each group of barbs 7 has a groove on its surface, and the two ends of the V-shaped torsion spring 12 are respectively movably disposed inside the groove.

[0028] The working process of this utility model is as follows:

[0029] In use, this invention pierces the target using the dart head 3 at the top of the upper dart shaft 2. During piercing, the sliding sleeve 8 on the surface of the upper dart shaft 2 is pushed, causing the sliding sleeve 8 to separate from the barbs 7. Then, the return force of the V-shaped torsion spring 12 pushes the two sets of barbs 7 to flip to the outside of the upper dart shaft 2, thus forming barbs 7 to fix the target. At the same time, this invention can connect the dart shaft to the rope body through the tail cap at the bottom of the lower dart shaft 1.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A harpoon with an automatically opening barb, comprising an upper shaft (2) and a lower shaft (1), characterized in that, The upper dart rod (2) is provided with a dart head (3) at the top, and a barb (4) is provided below the dart head (3). The upper dart rod (2) is provided with a through groove, and two sets of barbs (7) are movably provided inside the through groove. Two sets of sliding sleeves (8) are movably provided on the surface of the upper dart rod (2). The sliding sleeves (8) are used to fix the two sets of barbs (7). The lower dart rod (1) is provided with a screw (9) at the top, and the screw (9) is threadedly connected to the threaded hole (10) opened in the upper dart rod (2). The lower dart rod (1) is provided with a tail cap at the bottom.

2. A fish spear with automatically opening barbs according to claim 1, characterized in that: The screw (9) at the top of the lower dart rod (1) is fitted with a washer (5) on its outer surface, and the upper dart rod (2) is fitted with a spring (6) on its outer surface, with the bottom of the spring (6) and the surface of the washer (5) mutually blocking each other.

3. A fish spear with automatically opening barbs according to claim 1, characterized in that: The barb (7) is provided with a baffle plate on the outer side, and the baffle plate and the top of the spring (6) are mutually blocked.

4. A fish spear with automatically opening barbs according to claim 1, characterized in that: A bolt (11) is provided inside the through groove of the upper dart rod (2). A V-shaped torsion spring (12) is sleeved on the outer surface of the bolt (11), and the V-shaped torsion spring (12) is connected to the barb (7). A threaded hole is provided on the surface of the upper dart rod (2), and the threaded hole is threadedly connected to the bolt (11).

5. A fish spear with automatically opening barbs according to claim 4, characterized in that: Each set of barbs (7) has a groove on its surface, and the two ends of the V-shaped torsion spring (12) are respectively movably set inside the groove.

Images