wreathed fishing head

Abstract

This utility model relates to the field of salvage tools, specifically a plum blossom salvage head, comprising a sleeve and spring pieces. The sleeve is a cylindrical structure with a closed upper end and an open lower end. Several spring pieces are evenly distributed along the circumference of the inner side of the lower end of the sleeve. This utility model has a reasonable and compact structure. The upper end of the sleeve is connected to a weighted rod. When a steel wire or cable breaks less than two meters from the instrument, the plum blossom salvage head descends with the weighted rod. The gap between adjacent spring pieces avoids the broken cable or wire. After repeated up-and-down movements of the weighted rod, the spring pieces impact the mushroom head. Upon impact, the spring pieces bend upwards and outwards, increasing the diameter of the passage channel. The mushroom head instantly passes through the passage channel. Afterwards, the spring pieces return to their original shape, the diameter of the passage channel decreases, and the spring pieces can hold the step of the mushroom head. The upper side of the spring pieces provides support for the mushroom head. Lifting the weighted rod completes the salvage operation. The salvage is simple and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of salvage tools technology, and is a plum blossom salvage head. Background Technology

[0002] There are generally two scenarios when an instrument falls during testing: one is a broken wire, and the other is a broken instrument tip. Both scenarios have corresponding retrieval tools. However, when the wire or cable breaks less than two meters from the instrument, retrieval becomes extremely difficult. This is because the broken cable end is on the instrument's rope cap, preventing the clamp from entering, and the short wire cannot be coiled, making it impossible for the tools inside the hook to grip it. Summary of the Invention

[0003] This utility model provides a plum blossom-shaped retrieval head that overcomes the shortcomings of the prior art. It can effectively solve the problem that existing retrieval tools have difficulty in retrieving objects when the steel wire or cable breaks less than two meters away from the instrument.

[0004] The technical solution of this utility model is achieved through the following measures: a plum blossom retrieval head, including a sleeve and spring pieces. The sleeve has a cylindrical structure with a closed upper end and an open lower end. Several spring pieces are evenly distributed along the circumference on the inner side of the lower end of the sleeve. The inner side of the several spring pieces forms a through channel no larger than the outer diameter of the mushroom head. Several connecting holes that connect the inside and outside are evenly distributed along the circumference on the outer side of the sleeve corresponding to the position above the spring pieces.

[0005] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution: The aforementioned shrapnel can be tilted from top to bottom and from inside to outside.

[0006] The aforementioned shrapnel can be arranged in a fan-shaped ring.

[0007] The aforementioned spring clip and the inner side of the lower end of the sleeve can be connected by a rounded transition.

[0008] The aforementioned connection holes can be strip-shaped.

[0009] A connector can be fixed to the upper end of the sleeve, and the connector has a connecting thread on the outside.

[0010] This utility model has a reasonable and compact structure. The upper end of the sleeve is connected to the weight rod. When the steel wire or cable breaks less than two meters away from the instrument, the plum blossom retrieval head descends with the weight rod. The gap between two adjacent spring pieces can avoid the broken cable or steel wire. After the weight rod moves up and down repeatedly, it drives the spring pieces to hit the mushroom head. After being impacted, the spring pieces bend and deform upward and outward, increasing the diameter of the passage. The mushroom head passes through the passage instantly. Afterward, the spring pieces return to their original shape, and the diameter of the passage decreases. The spring pieces can hold the step of the mushroom head. The upper side of the spring pieces can also support the mushroom head. The weight rod is then lifted to complete the retrieval operation. The retrieval is simple and easy to operate. Attached Figure Description

[0011] Appendix Figure 1 This is a front sectional view of the structure when used in the preferred embodiment of this utility model.

[0012] Appendix Figure 2 This is a top view and enlarged cross-sectional structural diagram of the sleeve in the preferred embodiment of this utility model.

[0013] The codes in the attached diagram are as follows: 1 is sleeve, 2 is spring, 3 is through channel, 4 is connecting hole, 5 is connector, 6 is mushroom head, 7 is cable break, and 8 is weighting rod. Detailed Implementation

[0014] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0015] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0016] The present invention will be further described below with reference to the embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2 As shown, the plum blossom retrieval head includes a sleeve 1 and spring pieces 2. The sleeve 1 has a cylindrical structure with a closed upper end and an open lower end. Several spring pieces 2 are evenly distributed along the circumference on the inner side of the lower end of the sleeve 1. The inner side of the several spring pieces 2 forms a through channel 3 that is no larger than the outer diameter of the mushroom head 6. Several connecting holes 4 that connect the inside and outside are evenly distributed along the circumference on the outer side of the sleeve 1 corresponding to the position above the spring pieces 2.

[0017] According to requirements, three spring pieces 2 are evenly distributed along the circumference of the inner side of the lower end of the sleeve 1. During use, the upper end of the sleeve 1 is connected to the weight rod 8. In this way, when the steel wire or cable breaks less than two meters away from the instrument, the plum blossom retrieval head descends with the weight rod 8. The gap between two adjacent spring pieces 2 can avoid the broken cable or steel wire. After the weight rod 8 moves up and down repeatedly, it drives the spring pieces 2 to hit the mushroom head 6. After being impacted, the spring pieces 2 bend and deform upward and outward, and the diameter of the passage channel 3 increases. The mushroom head 6 passes through the passage channel 3 instantly. Afterward, the spring pieces 2 return to their original shape, and the diameter of the passage channel 3 decreases. The spring pieces 2 can hold the step of the mushroom head 6. The upper side of the spring pieces 2 can support the mushroom head 6. The weight rod 8 is then lifted to complete the retrieval operation. The retrieval is simple and easy to operate.

[0018] The above-mentioned plum blossom-shaped retrieval head can be further optimized and / or improved according to actual needs: Example 2: As an optimization of the above examples, as shown in the appendix. Figure 1 As shown, the spring piece 2 tilts from top to bottom and then from inside to outside.

[0019] During use, with this setting, the spring 2 forms a conical guide cavity that is smaller at the top and larger at the bottom, which matches the conical surface of the mushroom head 6 and guides the mushroom head 6. When the sleeve 1 moves downward, the upper end of the mushroom head 6 is guided to the center of the sleeve 1, making it easier for the mushroom head 6 to pass through the spring 2 and be located inside the sleeve 1, reducing the difficulty of retrieval.

[0020] Example 3: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown, the spring 2 is in the shape of a fan ring.

[0021] During use, this setting creates a circular passageway 3 between the spring pieces 2, allowing the mushroom head 6 to enter the sleeve 1 and be positioned in the center of the sleeve 1, reducing resistance when retrieving the mushroom head 6 and making the retrieval operation easier.

[0022] Example 4: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown, there is a circular arc transition between the spring piece 2 and the inner side of the lower end of the sleeve 1.

[0023] According to the requirements, the spring 2 and the sleeve 1 are integrated. The outer side of the spring 2 and the inner side of the lower end of the sleeve 1 are connected by a rounded arc. This can prevent stress concentration and breakage at the connection between the spring 2 and the sleeve 1 when the spring 2 is deformed, thus extending the service life. At the same time, it can also prevent the spring 2 from being damaged by rubbing against the mushroom head 6 when they come into contact.

[0024] Example 5: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown, the connecting hole 4 is strip-shaped.

[0025] Depending on the requirements, the connecting hole 4 is a vertical strip, and its cross-section can be rectangular. During use, when the cable break 7 is inside the sleeve 1, it can pass through the connecting hole 4 and be located outside the sleeve 1. This prevents the cable break 7 from squeezing the mushroom head 6 inside the sleeve 1, and avoids the mushroom head 6 separating from the spring piece 2 during the retrieval process, which could lead to retrieval failure and improve the retrieval success rate.

[0026] Example 6: As an optimization of the above examples, as shown in the appendix Figure 1 As shown, a connector 5 is fixed to the upper end of the sleeve 1, and a connecting thread is provided on the outer side of the connector 5.

[0027] During use, by setting a connector 5 with a connecting thread, it is easy for the upper end of the sleeve 1 to connect with the weight rod 8. In this way, when the steel wire or cable breaks less than two meters away from the instrument, after the plum blossom retrieval head descends with the weight rod 8, the gap between the two adjacent spring pieces 2 can avoid the broken cable or steel wire. After the weight rod 8 moves up and down repeatedly, it drives the spring piece 2 to hit the mushroom head 6. After being impacted, the spring piece 2 bends and deforms upward and outward, the diameter of the passage channel 3 increases, and the mushroom head 6 passes through the passage channel 3 instantly. Afterward, the spring piece 2 returns to its original shape, the diameter of the passage channel 3 decreases, and the spring piece 2 can hold the step of the mushroom head 6. The upper side of the spring piece 2 can support the mushroom head 6. The weight rod 8 is then lifted to complete the retrieval operation.

[0028] The above technical features constitute various embodiments of this utility model, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A plum blossom-shaped retrieval head, characterized in that... It includes a sleeve and spring pieces. The sleeve has a cylindrical structure with a closed upper end and an open lower end. Several spring pieces are evenly distributed along the circumference on the inner side of the lower end of the sleeve. The inner side of the spring pieces forms a through channel no larger than the outer diameter of the mushroom head. Several connecting holes that connect the inside and outside are evenly distributed along the circumference on the outer side of the sleeve corresponding to the position above the spring pieces.

2. The plum blossom retrieval head according to claim 1, characterized in that... The shrapnel tilts from top to bottom and then from inside to outside.

3. The plum blossom retrieval head according to claim 1 or 2, characterized in that... The shrapnel is in the shape of a fan ring.

4. The plum blossom retrieval head according to claim 3, characterized in that... The spring clip and the inner side of the lower end of the sleeve have a rounded transition.

5. The plum blossom retrieval head according to claim 1, 2, or 4, characterized in that... The connecting hole is strip-shaped.

6. The plum blossom retrieval head according to claim 3, characterized in that... The connecting hole is strip-shaped.

7. The plum blossom retrieval head according to claim 1, 2, 4, or 6, characterized in that... A connector is fixed to the upper end of the sleeve, and the connector has a connecting thread on the outside.

8. The plum blossom retrieval head according to claim 3, characterized in that... A connector is fixed to the upper end of the sleeve, and the connector has a connecting thread on the outside.

9. The plum blossom retrieval head according to claim 5, characterized in that... A connector is fixed to the upper end of the sleeve, and the connector has a connecting thread on the outside.

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