Fishing tool for dropped objects in coal field drilling holes

Abstract

The utility model relates to the technical field of fishing tools, and provides a fishing tool for falling objects in a coal field drilling hole, which comprises a guide outer cover, a plurality of elastic plates, a plurality of baffle plates, a lifting mechanism and a supporting mechanism, the plurality of elastic plates are connected in the guide outer cover in a sliding manner, anti-slip strips are arranged on the plurality of elastic plates, the plurality of baffle plates are arranged, and the lifting mechanism is arranged on the guide outer cover. The multiple baffles are rotationally connected to the inner wall of the guide outer cover, the lifting mechanism is arranged in the guide outer cover and used for driving the elastic plate to ascend and descend, and the multiple baffles are provided with the supporting mechanisms and used for supporting and rebounding the baffles. And therefore, the drill bit is difficult to limit, the drill bit is difficult to be quickly fixed in a guide outer cover and taken out of a hole, and the fishing efficiency is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fishing tool, specifically, relate to a coalfield drilling hole inside fallen object fishing tool. BACKGROUND

[0002] Coalfield drilling hole is important, can carry out geological exploration through taking out the core, clear coalfield geological structure, coal seam condition, can be used for hydrogeological research, analyzes water sample and understands the groundwater condition, can also detect gas such as gas, test coal seam characteristics, provides many aspects basis for coal mining.

[0003] In the process of coalfield drilling hole, the condition that metal articles often fall in the hole, after the metal articles fall into the hole, need to fish the metal articles through the fishing tool, for example, the patent announcement No.CN205532431U discloses a kind of small metal fallen object fast fishing tool in drilling hole, by setting righting device and anti-falling baffle, improve fishing efficiency and success rate, but when the drill bit of the diameter substantially same as hole is dropped into hole, guide outer cover falls to the bottom along the inner wall of hole, even if drill bit enters guide outer cover, baffle is influenced by drill bit, difficult to flatten, in turn difficult to limit drill bit, in turn difficult to quickly fix drill bit in guide outer cover and take out from hole, reduce fishing efficiency. CONTENT OF UTILITY MODEL

[0004] The utility model provides a kind of coalfield drilling hole inside fallen object fishing tool, solve the problem that baffle is influenced by drill bit in prior art, difficult to flatten, in turn difficult to limit drill bit, in turn difficult to quickly fix drill bit in guide outer cover and take out from hole, reduce fishing efficiency.

[0005] The technical scheme of the utility model is as follows: a kind of coalfield drilling hole inside fallen object fishing tool, including guide outer cover, further comprising: elastic plate, baffle, lifting mechanism and support mechanism;

[0006] The elastic plate is equipped with multiple, multiple elastic plate is all slidingly connected in guide outer cover, multiple elastic plate is all equipped with antiskid strip on;

[0007] The baffle is equipped with multiple, multiple baffle is all rotationally connected on the inner wall of guide outer cover;

[0008] The lifting mechanism is arranged in guide outer cover, for driving elastic plate to move up and down;

[0009] Multiple baffles are all equipped with support mechanism, for supporting baffle rebound.

[0010] Preferably, the lifting mechanism includes: slide plate, slide rod and drive assembly.

[0011] The sliding plate is slidingly connected in the guide cover, and the top ends of the plurality of elastic plates are in contact with the bottom end of the sliding plate;

[0012] The sliding rod is fixedly connected to the top end of the sliding plate and slidingly connected to the guide cover;

[0013] The driving assembly is arranged on the guide cover and used for driving the sliding rod to move.

[0014] Further, the driving assembly comprises a toothed belt, a driving gear and a first motor.

[0015] The toothed belt is fixedly connected to the sliding rod;

[0016] The driving gear is engaged with the toothed belt;

[0017] The first motor is mounted in the guide cover, and the output end of the first motor is fixedly connected to the driving gear.

[0018] Still further, the supporting mechanism comprises a fixed plate and a supporting spring.

[0019] The fixed plate is fixedly connected in the guide cover;

[0020] The two ends of the supporting spring are fixedly connected to the fixed plate and the baffle respectively.

[0021] As a further scheme of the present application, the guide cover is fixedly connected with a sliding box, and the elastic plates are slidingly connected in the sliding box.

[0022] As a still further scheme of the present application, the sliding rod is fixedly connected with a guide rod, the guide cover is provided with a sliding hole, and the guide rod is slidingly connected in the sliding hole.

[0023] The working principle and beneficial effects of the present application are as follows:

[0024] In the present application, the cooperation between the elastic plates, the baffle, the lifting mechanism and the supporting mechanism facilitates the insertion of the guide cover into the hole and the insertion of the drill bit into the hole after the drill bit is clamped by the elastic plates, thereby achieving the quick removal of the drill bit. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0026] Figure 1 The present application is a schematic diagram of the overall structure.

[0027] Figure 2 It is a sectional view of the structure schematic diagram of the utility model;

[0028] Figure 3 It is a structure schematic diagram of the support mechanism of the utility model;

[0029] Figure 4 It is a structure schematic diagram of the utility model Figure 2 It is a structure schematic diagram of the utility model.

[0030] In the figure: 1, guide cover; 2, elastic plate; 3, anti-skid strip; 4, baffle; 5, sliding plate; 6, sliding rod; 7, toothed belt; 8, driving gear; 9, first motor; 10, fixed plate; 11, support spring; 12, sliding box; 13, guide rod. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0032] As Figures 1-4 shown, the embodiment provides a coalfield drilling hole falling object fishing tool, which comprises a guide cover 1 and further comprises an elastic plate 2, a baffle 4, a lifting mechanism and a support mechanism. The guide cover 1 is internally fixedly connected with a sliding box 12, and the elastic plate 2 is slidably connected in the sliding box 12. The elastic plate 2 is provided with a plurality of elastic plates 2, and the plurality of elastic plates 2 are slidably connected in the guide cover 1. The plurality of elastic plates 2 are all provided with anti-skid strips 3. The baffle 4 is provided with a plurality of baffles 4, and the plurality of baffles 4 are all rotationally connected on the inner wall of the guide cover 1. Through the cooperation between the elastic plate 2, the baffle 4, the lifting mechanism and the support mechanism, the guide cover 1 is inserted into the hole and at the top end of the drill bit, then the plurality of elastic plates 2 are inserted between the inner wall of the hole and the drill bit, and the drill bit is clamped by the elastic force of the plurality of elastic plates 2 close to each other, so that the drill bit is quickly taken out. In addition, through the arrangement of the support mechanism and the baffle 4, small objects in the hole can be quickly taken out.

[0033] The lifting mechanism is arranged in the guide outer cover 1 and is used for driving the elastic plates 2 to move up and down. The lifting mechanism comprises a sliding plate 5, a sliding rod 6 and a driving assembly. The sliding rod 6 is fixedly connected with a guide rod 13. The guide outer cover 1 is provided with a sliding hole. The guide rod 13 is slidably connected in the sliding hole. The sliding plate 5 is slidably connected in the guide outer cover 1. The top ends of the plurality of elastic plates 2 are in contact with the bottom end of the sliding plate 5. The sliding rod 6 is fixedly connected with the top end of the sliding plate 5. The sliding rod 6 is slidably connected on the guide outer cover 1. The driving assembly is arranged on the guide outer cover 1 and is used for driving the sliding rod 6 to move. The driving assembly comprises a toothed belt 7, a driving gear 8 and a first motor 9. The toothed belt 7 is fixedly connected on the sliding rod 6. The driving gear 8 is engaged with the toothed belt 7. The first motor 9 is installed in the guide outer cover 1. The output end of the first motor 9 is fixedly connected with the driving gear 8. Specifically, the first motor 9 drives the driving gear 8 to rotate on the toothed belt 7, thereby driving the toothed belt 7 and the sliding rod 6 to descend on the guide outer cover 1, further driving the sliding plate 5 and the plurality of elastic plates 2 to descend, thereby making the plurality of elastic plates 2 extend out. After the plurality of elastic plates 2 extend out, due to the elasticity of the plurality of elastic plates 2, the plurality of elastic plates 2 are close to each other, thereby clamping the drill bit.

[0034] The plurality of baffles 4 are provided with support mechanisms, which are used for supporting and rebounding the baffles 4. The support mechanism comprises a fixed plate 10 and a support spring 11. The fixed plate 10 is fixedly connected in the guide outer cover 1. The two ends of the support spring 11 are fixedly connected with the fixed plate 10 and the baffle 4 respectively. Specifically, when the guide outer cover 1 descends to the bottom of the hole, the object in the hole props up the baffle 4, so that the object enters into the guide outer cover 1. Then, the guide outer cover 1 is rotated, so that the object completely enters into the guide outer cover 1. The baffle 4 is restored through the support of the support spring 11, thereby limiting the object in the guide outer cover 1, which is convenient for taking out.

[0035] In the embodiment, when the drill bit with a diameter substantially the same as the hole needs to be fished, the first motor 9 drives the driving gear 8 to rotate on the toothed belt 7, thereby driving the toothed belt 7 and the sliding rod 6 to descend on the guide outer cover 1, further driving the sliding plate 5 and the plurality of elastic plates 2 to descend, thereby making the plurality of elastic plates 2 extend out. After the plurality of elastic plates 2 extend out, due to the elasticity of the plurality of elastic plates 2, the plurality of elastic plates 2 are close to each other, thereby clamping the drill bit, so that the drill bit is quickly taken out. When the smaller object needs to be fished, the guide outer cover 1 descends to the bottom of the hole. The object in the hole props up the baffle 4, so that the object enters into the guide outer cover 1. Then, the guide outer cover 1 is rotated, so that the object completely enters into the guide outer cover 1. The baffle 4 is restored through the support of the support spring 11, thereby limiting the object in the guide outer cover 1, which is convenient for taking out.

[0036] It is also needed to be supplemented that the elastic plates 2 are arc-shaped in normal state, and are straightened by the limitation of the sliding box 12 when the elastic plates 2 slide, and the bottom ends of the plurality of elastic plates 2 are close to the center point of the guide outer cover 1 under the influence of the elastic force of the elastic plates 2 when the elastic plates 2 extend out of the sliding box 12, so that the drill bit is clamped.

[0037] The above only is the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tool for fishing dropped objects from a coalfield borehole comprising a guide outer housing (1) characterised in that, Also include: The elastic plate (2) is provided with a plurality of, a plurality of the elastic plate (2) are all connected in the guide cover (1), a plurality of the elastic plate (2) are all provided with anti-skid strip (3); Baffle (4), the baffle (4) is provided with a plurality of, a plurality of the baffle (4) are all connected on the inner wall of the guide cover (1); Lifting mechanism, the lifting mechanism is arranged in the guide cover (1), for driving the elastic plate (2) to move up and down; Support mechanism, a plurality of the baffle (4) are all provided with support mechanism, for supporting the baffle (4) rebound.

2. A tool for retrieving dropped objects from a coalfield borehole according to claim 1, wherein, The lifting mechanism comprises: sliding plate (5), the sliding plate (5) is connected in the guide cover (1), the top end of a plurality of the elastic plate (2) is in contact with the bottom end of the sliding plate (5); Slide rod (6), the slide rod (6) is fixedly connected to the top end of the sliding plate (5), the slide rod (6) is connected on the guide cover (1); Drive assembly, the drive assembly is arranged on the guide cover (1), for driving the slide rod (6) to move.

3. A tool for retrieving dropped objects from a coalfield borehole according to claim 2, wherein, The drive assembly comprises: toothed belt (7), the toothed belt (7) is fixedly connected to the slide rod (6); Drive gear (8), the drive gear (8) is engaged with the toothed belt (7); First motor (9), the first motor (9) is mounted in the guide cover (1), and the output end of the first motor (9) is fixedly connected with the drive gear (8).

4. A tool for retrieving dropped objects from a coalfield borehole according to claim 3, wherein, The support mechanism comprises: fixed plate (10), the fixed plate (10) is fixedly connected in the guide cover (1); Support spring (11), the two ends of the support spring (11) are fixedly connected with the fixed plate (10) and the baffle (4) respectively.

5. A tool for retrieving dropped objects from a coalfield borehole according to claim 4, wherein, The guide cover (1) is fixedly connected with a sliding box (12), and the elastic plate (2) is connected in the sliding box (12).

6. A tool for retrieving dropped objects from a coalfield borehole according to claim 5, wherein, The slide rod (6) is fixedly connected with a guide rod (13), and the guide cover (1) is provided with a sliding hole, and the guide rod (13) is connected in the sliding hole.

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