Geophysical prospecting drilling protection device

Abstract

The utility model discloses a geophysical prospecting drilling protection device, and relates to the technical field of geophysical prospecting drilling. An inner protection tube is arranged on the inner side of the outer protection tube, a plurality of outer detection holes are formed in the side wall of the outer protection tube, and a plurality of inner detection holes are formed in the side wall of the inner protection tube; a blocking plate is arranged on the side, away from the inner protection pipe, of the containing groove and matched with the outer detection hole. A plugging plate and a storage groove are arranged on the outer side wall of the inner protection pipe, an abutting spring is arranged between the plugging plate and the storage groove, the plugging plate descends under the action of the abutting spring and is pushed into the outer detection hole, then plugging of the outer detection hole is achieved, and the situation that the outer detection hole is blocked in the process that the device moves into the drill hole is avoided; when detection needs to be carried out, the inner protection tube is directly rotated, then the plugging plate is pushed to move towards the direction of the containing groove through the arc-shaped side wall of the contact position of the plugging plate and the outer detection hole, and detection can be carried out when the inner detection hole and the outer detection hole coincide along with rotation of the inner protection tube.

Description

TECHNICAL FIELD

[0001] The utility model relates to geophysical drilling technology field especially relates to a geophysical drilling protection device. BACKGROUND

[0002] Geophysical drilling is a common operation mode in geophysical exploration, which drills holes on the ground to collect and analyze information of geological structure, mineral resources and underground water by putting detection instruments into the ground. This operation mode has wide application value in the fields of geological exploration, mineral resources development and environmental engineering. However, when carrying out geophysical drilling operation, the stability of the drilling hole is a problem that cannot be ignored. Due to the complexity of underground geological conditions, the drilling hole is prone to collapse, which affects the subsequent detection work. Therefore, the drilling hole protection device is particularly important.

[0003] The traditional drilling hole protection device is usually designed with a sidewall detection hole to monitor the underground conditions in real time during the drilling process. However, in actual application, this design has many shortcomings. Especially when drilling protection is carried out for deeper holes, multiple protection pipes need to be connected. During the connection of the protection pipes and the movement of the protection pipes downward, impurities are easily accumulated in the detection hole and the protection pipe, which may affect the subsequent detection.

[0004] Therefore, the present application proposes a geophysical drilling protection device to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a geophysical drilling protection device to solve the technical problems proposed in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a geophysical drilling protection device, comprising an outer protection pipe, an inner protection pipe is arranged on the inner side of the outer protection pipe, a plurality of outer detection holes are arranged on the sidewall of the outer protection pipe, a plurality of inner detection holes are arranged on the sidewall of the inner protection pipe, the outer detection holes and the inner detection holes are both long strips, a plurality of receiving grooves are arranged on the outer sidewall of the inner protection pipe, the plurality of receiving grooves and the plurality of inner detection holes are arranged alternately, a blocking plate is arranged on the side of the receiving groove away from the inner protection pipe, a plurality of sliding rods are fixedly connected to the side of the blocking plate close to the receiving groove, the sliding rods penetrate through the bottom sidewall of the receiving groove and are fixedly connected with a baffle, the sliding rods are slidingly connected with the bottom sidewall of the receiving groove, an abutting spring is sleeved on the sliding rod, and the two ends of the abutting spring are fixedly connected with the bottom of the receiving groove and the sidewall of the blocking plate close to the receiving groove respectively.

[0007] Preferably, the blocking plate is matched with the outer detection hole, and the blocking plate and the left and right sidewalls and the left and right inner walls of the outer detection hole are all arc-shaped.

[0008] Preferably, the size of the receiving groove is not less than the size of the blocking plate.

[0009] Preferably, the inner side wall of the inner protection pipe is fixedly connected with a plurality of protective frames, and the receiving groove is located between the blocking plate and the protective frames.

[0010] Preferably, the upper end of the protective frame is provided with an adjusting groove.

[0011] Preferably, the upper end of the inner side wall of the outer protection pipe is provided with a mounting groove, two limiting plates are arranged in the mounting groove, the longitudinal section of the limiting plate is L-shaped, a fixing bolt is arranged on the side of the limiting plate away from the outer protection pipe, the fixing bolt penetrates through the limiting plate and is threadedly connected with the bottom of the mounting groove, the upper end of the outer side wall of the inner protection pipe is provided with a limiting groove, and the inner side end of the limiting plate extends into the limiting groove and is rotationally connected with the limiting groove.

[0012] Compared with the related art, the drilling protection device for geophysical prospecting has the following beneficial effects:

[0013] 1. The drilling protection device for geophysical prospecting is provided with an outer protection pipe and an inner protection pipe, the outer side wall of the inner protection pipe is provided with a blocking plate and a receiving groove, an abutting spring is arranged between the blocking plate and the receiving groove, the blocking plate is pushed into the outer detection hole under the action of the abutting spring, thereby achieving the blocking of the outer detection hole and avoiding the blocking of the outer detection hole in the process of moving the device into the drilling hole; when detection is needed, the inner protection pipe is directly rotated, the arc-shaped side wall at the contact position of the blocking plate and the outer detection hole is utilized, the blocking plate is moved in the direction of the receiving groove, and when the inner detection hole coincides with the outer detection hole, detection can be performed.

[0014] 2. The drilling protection device for geophysical prospecting is provided with a fixing bolt and two limiting plates, the connection between the outer protection pipe and the inner protection pipe is realized by cooperation of the fixing bolt and the two limiting plates, after the fixing bolt is removed, the inner protection pipe is rotated and pulled upward, and then the inner protection pipe and the two limiting plates can be taken out, thereby facilitating the maintenance of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is Figure 1 the local enlarged view of A in FIG. 1;

[0017] Figure 3 It is a schematic diagram of the sectional three-dimensional structure of the utility model;

[0018] Figure 4 It isFigure 3 Local enlarged view at B;

[0019] Figure 5 The utility model discloses a three -dimensional structure schematic diagram of outer protection pipe;

[0020] Figure 6 The utility model discloses a three -dimensional structure schematic diagram of inner protection pipe;

[0021] Figure 7 The utility model discloses a sectional plane three -dimensional structure schematic diagram;

[0022] Figure 8 For Figure 7 Local enlarged view at C;

[0023] Figure 9 The utility model discloses a three -dimensional structure schematic diagram of limiting plate.

[0024] In the figure: 1, outer protection pipe, 2, inner protection pipe, 3, outer detection hole, 4, installation slot, 5, limiting slot, 6, limiting plate, 7, inner detection hole, 8, storage slot, 9, protection frame, 10, adjusting slot, 11, plugging plate, 12, sliding rod, 13, abutment spring, 14, baffle, 15, fixed bolt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-9The utility model provides a technical scheme: a geophysical prospecting borehole protection device, the inside of outer protection pipe 1 is provided with inner protection pipe 2, a plurality of outer detection holes 3 are set up on the lateral wall of outer protection pipe 1, a plurality of inner detection holes 7 are set up on the lateral wall of inner protection pipe 2, and outer detection hole 3 and inner detection hole 7 are all long strip shape, a plurality of receiving grooves 8 are set up on the lateral wall of inner protection pipe 2, a plurality of receiving grooves 8 and a plurality of inner detection holes 7 are staggered arrangement, the side away from inner protection pipe 2 of receiving groove 8 is provided with the stop board 11, a plurality of sliding rods 12 are fixedly connected on the side of stop board 11 close to receiving groove 8, sliding rod 12 penetrates the bottom lateral wall of receiving groove 8 and is fixedly connected with baffle 14, and sliding rod 12 and the bottom lateral wall of receiving groove 8 are slidably connected, abutment spring 13 is sleeved on sliding rod 12, and the both ends of abutment spring 13 are fixedly connected with the bottom of receiving groove 8 and the lateral wall of stop board 11 close to receiving groove 8 respectively;When needing to detect, directly rotate inner protection pipe 2 and then utilize the arc-shaped lateral wall of the contact position of stop board 11 and outer detection hole 3, push stop board 11 to the direction of receiving groove 8, with the rotation of inner protection pipe 2, when inner detection hole 7 and outer detection hole 3 coincide, detection can be carried out;

[0027] Stop board 11 is adapted to outer detection hole 3, and stop board 11 and the left and right two lateral walls and the left and right two inner walls of outer detection hole 3 are all arc-shaped, to ensure that stop board 11 can be smoothly removed from outer detection hole 3 when inner protection pipe 2 rotates, and then outer detection hole 3 is exposed;

[0028] The size of receiving groove 8 is not less than the size of stop board 11, to ensure that stop board 11 can be received in receiving groove 8 after being slid out of outer detection hole 3;

[0029] A plurality of protection frames 9 are fixedly connected on the inner lateral wall of inner protection pipe 2, receiving groove 8 is located between stop board 11 and protection frame 9, and protection frame 9 is used to shield sliding rod 12 and baffle 14, to avoid the influence on the extension of detection equipment into inner protection pipe 2;

[0030] Adjusting groove 10 is formed in the upper end of protection frame 9, and the rotation operation of inner protection pipe 2 can be realized by clamping in adjusting groove 10 through external tools during use;

[0031] The upper end of the inner side wall of the outer protection pipe 1 is provided with a mounting groove 4, two limiting plates 6 are arranged in the mounting groove 4, the longitudinal section of the limiting plate 6 is in L shape, the side of the limiting plate 6 away from the outer protection pipe 1 is provided with a fixing bolt 15, the fixing bolt 15 penetrates through the limiting plate 6 and is in threaded connection with the bottom of the mounting groove 4, the upper end of the outer side wall of the inner protection pipe 2 is provided with a limiting groove 5, the inner side end of the limiting plate 6 extends into the limiting groove 5 and is in rotary connection with the limiting groove 5, the connection between the outer protection pipe 1 and the inner protection pipe 2 is realized through cooperation of the fixing bolt 15 and the two limiting plates 6, after the fixing bolt 15 is removed, the inner protection pipe 2 is rotated and pulled upward, and then the inner protection pipe 2 and the two limiting plates 6 can be taken out, which is more convenient for equipment maintenance.

[0032] Working principle: the inner protection pipe 2 and the outer protection pipe 1 are connected through cooperation of the two limiting plates 6 and the fixing bolt 15, under the action of the abutting spring 13, the sealing plate 11 extends into the outer detection hole 3 and seals the outer detection hole 3, so that the outer detection hole 3 is prevented from being blocked during movement of the device into the drill hole; when detection is needed, the inner protection pipe 2 is directly rotated, and then the arc-shaped side wall at the contact position of the sealing plate 11 and the outer detection hole 3 is utilized to push the sealing plate 11 to move to the direction of the storage groove 8, with rotation of the inner protection pipe 2, when the inner detection hole 7 coincides with the outer detection hole 3, detection can be carried out. And the connection between the outer protection pipe 1 and the inner protection pipe 2 is realized through cooperation of the fixing bolt 15 and the two limiting plates 6 in the device, after the fixing bolt 15 is removed, the inner protection pipe 2 is rotated and pulled upward, and then the inner protection pipe 2 and the two limiting plates 6 can be taken out, which is more convenient for equipment maintenance.

Claims

1. A geophysical exploration drilling protection device, comprising an outer protection tube (1), characterized in that: An inner protection tube (2) is provided on the inner side of the outer protection tube (1), a plurality of outer detection holes (3) are provided on the side wall of the outer protection tube (1), a plurality of inner detection holes (7) are provided on the side wall of the inner protection tube (2), the outer detection holes (3) and the inner detection holes (7) are both in the shape of long strips, a plurality of receiving grooves (8) are provided on the outer side wall of the inner protection tube (2), a plurality of the receiving grooves (8) and a plurality of the inner detection holes (7) are arranged in a staggered manner, and a side of the receiving groove (8) away from the inner protection tube (2) is provided with a A blocking plate (11) is fixedly connected to a plurality of sliding rods (12) on one side of the blocking plate (11) close to the receiving groove (8), the sliding rods (12) pass through the bottom side wall of the receiving groove (8) and are fixedly connected to a baffle (14), the sliding rods (12) are slidably connected to the bottom side wall of the receiving groove (8), an abutting spring (13) is sleeved on the sliding rod (12), and the two ends of the abutting spring (13) are respectively fixedly connected to the bottom of the receiving groove (8) and the side wall of the blocking plate (11) close to the receiving groove (8).

2. The geophysical exploration drilling protection device according to claim 1, characterized in that: The blocking plate (11) is adapted to the outer detection hole (3), and the blocking plate (11) and the left and right side walls and the left and right inner walls of the outer detection hole (3) are all arc-shaped.

3. The geophysical exploration drilling protection device according to claim 1, characterized in that: The size of the receiving groove (8) is not less than the size of the blocking plate (11).

4. The geophysical exploration drilling protection device according to claim 1, characterized in that: A plurality of protection frames (9) are fixedly connected to the inner side wall of the inner protection tube (2), and the receiving groove (8) is located between the sealing plate (11) and the protection frame (9).

5. The geophysical exploration drilling protection device according to claim 4, characterized in that: An adjustment slot (10) is provided at the upper end of the protection frame (9).

6. The geophysical exploration drilling protection device according to claim 1, characterized in that: The upper end of the inner side wall of the outer protective tube (1) is provided with a mounting groove (4), and two limiting plates (6) are provided in the mounting groove (4). The longitudinal cross-section of the limiting plate (6) is L-shaped. A fixing bolt (15) is provided on the side of the limiting plate (6) away from the outer protective tube (1). The fixing bolt (15) passes through the limiting plate (6) and is threadedly connected to the bottom of the mounting groove (4). The upper end of the outer side wall of the inner protective tube (2) is provided with a limiting groove (5), and the inner side end of the limiting plate (6) extends into the limiting groove (5) and is rotatably connected to the limiting groove (5).

Images