Multifunctional puller

Abstract

The invention discloses a multifunctional drawing device which comprises a drawing base, a large threaded hole is formed in the center of the top of the drawing base, a large threaded rod is installed in the large threaded hole, a core rod is arranged at the bottom of the large threaded rod, connecting threads are arranged on the outer portion of the lower side of the core rod, and small threaded holes are formed in the positions, on the left side and the right side of the large threaded hole, of the drawing base. Small threaded rods are installed in the small threaded holes in the left side and the right side, a 12-core contact pin is installed on the drawing base and located on the front side of the large threaded rod in a sliding mode, and a 28-core contact pin is installed on the drawing base and located on the outer side of the small threaded rod on the left side in a sliding mode. According to the multifunctional puller, when a 28-core plug needs to be pulled out, the 28-core plug is pulled out through cooperation of small threaded rods on the two sides and corresponding 28-core contact pins, when a 12-core plug needs to be pulled out, the 12-core plug is pulled out through cooperation of a large threaded rod in the center and a corresponding 12-core contact pin, and the problem that different instruments need to be provided with various pullers is solved; the multifunctional drawing device really realizes multiple functions, is more convenient to use, saves the working time of an operator, and improves the efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum well logging, and in particular relates to a multifunctional puller. Background Art

[0002] Oil logging, also known as geophysical logging, is a method of measuring geophysical parameters by using the geophysical properties of rock formations, such as electrochemical properties, electrical conductivity, acoustic properties, and radioactivity. During the oil drilling process, when drilling reaches the designed well depth, logging must be carried out to obtain various petroleum geological and engineering technical data.

[0003] In the process of oil logging, a puller is needed to disassemble or install the instrument core frame. However, the existing pullers are relatively simple in use. When removing a 12-core plug or a 28-core plug, pullers of different models are needed, which increases the production cost of the puller and is not applicable enough. Therefore, a multifunctional puller is urgently needed to solve the above problems. Summary of the invention

[0004] In view of the problems raised by the above background technology, the object of the present invention is to provide a multifunctional puller.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A multifunctional puller comprises a pulling seat, wherein a large threaded hole is provided at the top center of the pulling seat, a large screw is installed in the large threaded hole, a core rod is provided at the bottom of the large screw, a connecting thread is provided on the lower outer side of the core rod, the pulling seat is provided with small threaded holes on the left and right sides of the large threaded hole, small threaded rods are installed in the small threaded holes on the left and right sides, a 12-core pin is slidably installed on the front side of the large screw on the pulling seat, and a 28-core pin is slidably installed on the outer side of the small threaded rod on the left side of the pulling seat.

[0007] It is further defined that the pull-out seat is arranged in a T-shaped structure. Such a structural design facilitates the installation of 12-core plug pins and 28-core plug pins.

[0008] It is further defined that the pull-out seat is provided with a 12-core frame assembly surface at the position corresponding to the 12-core plug pin, and the pull-out seat is provided with a 28-core frame assembly surface at the position corresponding to the 28-core plug pin. Such a structural design facilitates the positioning and installation of the 12-core plug and the 28-core plug.

[0009] It is further defined that a handle is installed on the top of the large screw rod. Such a structural design is convenient for pulling the large screw rod for use, and it is more convenient to apply force when pulling.

[0010] It is further defined that the large screw and the core rod are integrally formed. Such a structural design is easy to produce and has high connection strength.

[0011] It is further defined that a twisting head is installed on the top of the small threaded rod. Such a structural design facilitates twisting the twisting head so that the twisting head drives the small threaded rod to rotate.

[0012] It is further defined that the angle between the 12-core plug pin and the 28-core plug pin is 90°. Such a structural design plays a reasonable layout and is easy to use.

[0013] It is further defined that the tops of the 12-core plug pin and the 28-core plug pin are both mounted on the pin handle. Such a structural design facilitates better plugging and unplugging of the 12-core plug pin and the 28-core plug pin.

[0014] It is further defined that the lower sides of the 12-core plug and the 28-core plug are both provided with positioning pins. Such a structural design can prevent the 12-core plug and the 28-core plug from rotating freely, and when the 12-core plug and the 28-core plug are inserted into the 12-core plug and the 28-core plug, they can be positioned at a suitable position by the positioning pins.

[0015] The beneficial effects of the present invention are as follows: the present invention provides a multifunctional puller, when the 28-core plug is to be pulled out, the small threaded rods on both sides and the corresponding 28-core pins are used to pull it out, and when the 12-core plug is to be pulled out, the large screw rod in the center and the corresponding 12-core pin are used to pull it out. The two types of plugs can be respectively pulled out of the instrument housing through different structures, which solves the problem that different instruments need to be equipped with multiple pullers, truly realizes multiple functions of one puller, has great practicality, is more convenient to use, saves the operator's working time, and increases efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the axial structure of a multifunctional puller according to an embodiment of the present invention;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of a multifunctional puller according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a 12-core core frame structure of a multifunctional puller according to an embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of a 12-core core frame of a multifunctional puller according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a 28-core core frame structure of a multifunctional puller according to an embodiment of the present invention;

[0022] Figure 6 It is a schematic cross-sectional structure diagram of a 28-core core frame of a multifunctional puller according to an embodiment of the present invention;

[0023] The main component symbols are described as follows:

[0024] Pulling seat 1, large threaded hole 2, large screw rod 3, core rod 4, connecting thread 5, small threaded hole 6, small threaded rod 7, 12-core pin 8, 28-core pin 9, 12-core frame assembly surface 10, 28-core frame assembly surface 11, handle 12, twist head 13, needle handle 14, locating pin 15, 12-core plug 16, 28-core plug 17. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figure 1-6 As shown, a multifunctional puller of the present invention has a large threaded hole 2 at the top center of the pulling seat 1, a large screw rod 3 is installed in the large threaded hole 2, a core rod 4 is provided at the bottom of the large screw rod 3, and a connecting thread 5 is provided on the lower outer side of the core rod 4. The pulling seat 1 has small threaded holes 6 on the left and right sides of the large threaded hole 2, and small threaded rods 7 are installed in the small threaded holes 6 on the left and right sides. The pulling seat 1 has a 12-core pin 8 slidably installed on the front side of the large screw rod 3, and the pulling seat 1 has a 28-core pin 9 slidably installed on the outer side of the small threaded rod 7 on the left.

[0027] Preferably, the pull-out seat 1 is arranged in a T-shaped structure. Such a structural design facilitates the installation of the 12-core plug pins 8 and the 28-core plug pins 9. In fact, other structural shapes of the pull-out seat 1 can also be considered according to specific circumstances.

[0028] Preferably, the puller seat 1 is provided with a 12-core frame assembly surface 10 at the position corresponding to the 12-core pin 8, and the puller seat 1 is provided with a 28-core frame assembly surface 11 at the position corresponding to the 28-core pin 9. Such a structural design facilitates the positioning and installation of the 12-core plug and the 28-core plug. In fact, other structural shapes of the 12-core frame assembly surface 10 and the 28-core frame assembly surface 11 can also be considered according to specific circumstances.

[0029] Preferably, a handle 12 is installed on the top of the large screw rod 3. Such a structural design is convenient for pulling the large screw rod 3 for use, and it is more convenient to use force when pulling. In fact, other structural shapes of the handle 12 can also be considered according to specific circumstances.

[0030] Preferably, the large screw rod 3 and the core rod 4 are integrally formed. Such a structural design is easy to produce and has high connection strength. In fact, other connection structural shapes of the large screw rod 3 and the core rod 4 can also be considered according to specific circumstances.

[0031] Preferably, a twisting head 13 is installed on the top of the small threaded rod 7. Such a structural design is convenient for twisting the twisting head 13, so that the twisting head 13 drives the small threaded rod 7 to rotate. In fact, other structural shapes of the twisting head 13 can also be considered according to specific circumstances.

[0032] Preferably, the angle between the 12-core plug pin 8 and the 28-core plug pin 9 is 90°. Such a structural design plays a reasonable layout and is easy to use. In fact, other layout structural shapes of the 12-core plug pin 8 and the 28-core plug pin 9 can also be considered according to specific circumstances.

[0033] Preferably, the tops of the 12-core plug pin 8 and the 28-core plug pin 9 are both mounted on the pin handle 14. Such a structural design facilitates better plugging and unplugging of the 12-core plug pin 8 and the 28-core plug pin 9. In fact, other structural shapes of the pin handle 14 can also be considered according to specific circumstances.

[0034] Preferably, positioning pins 15 are installed on the lower sides of the 12-core plug pins 8 and the 28-core plug pins 9. Such a structural design can prevent the 12-core plug pins 8 and the 28-core plug pins 9 from rotating freely, and when the 12-core plug pins 8 and the 28-core plug pins 9 are inserted into the 12-core plug and the 28-core plug, they can be positioned at a suitable position by the positioning pins 15. In fact, other structural shapes of the positioning pins 15 can also be considered according to specific circumstances.

[0035] In this embodiment, during use, when the 12-core plug 16 needs to be extracted, the pulling seat 1 is installed on the 12-core plug 16 so that one side of the top of the 12-core plug 16 is located at the 12-core frame assembly surface 10, and then the large screw 3 is rotated to move the large screw 3 downward along the large threaded hole 2, and the large screw 3 simultaneously drives the core rod 4 to rotate downward, so that the core rod 4 drives the connecting thread 5 to rotate into the large threaded hole in the 12-core plug 16 for fixed connection, and then the needle handle 14 is pushed so that the needle handle 14 pushes the 12-core pin 8 to be inserted into the hole of the 12-core plug, so that the 12-core plug is unlocked, and then the handle 12 is pulled, the handle 12 drives the large screw 3, and the large screw 3 drives the pulling seat 1 and the 12-core plug 16 to retreat, thereby taking out the 12-core plug 16.

[0036] When the 28-core plug 17 is to be pulled out, the large screw rod 3 is first rotated to make the large screw rod 3 drive the core rod 4 to move upward along the large threaded hole 2 to prevent the bottom of the core rod 4 from interfering with the 28-core plug 17. Then, the pulling seat 1 is installed on the pulling seat 1, and the top side of the 28-core plug 17 is installed on the 28-core frame assembly surface 11 for positioning. Then, the twisting heads 13 on both sides are rotated to make the twisting heads 13 drive the small threaded rod 7 to rotate along the small threaded hole 6 and move the small threaded rod 7 downward. Until the bottom of the small threaded rod 7 is rotated and installed into the threaded hole in the 28-core plug 17 to complete the fixed connection, then push the needle handle 14 so that the needle handle 14 pushes the 28-core pin 9 to insert into the hole of the 28-core plug 17 to unlock the 28-core plug 17, and then pull the handle 12, the handle 12 drives the large screw rod 3, the large screw 3 drives the pulling seat 1, the pulling seat 1 drives the small threaded rods 7 on both sides, and the small threaded rods 7 drive the 28-core plug 17 to retreat, thereby taking out the 28-core plug 17.

[0037] The main function of the puller seat 1 is to be the entire puller frame, on which all components are fixed, and which can cooperate with the sealing surface of the instrument housing on the outside and with the instrument core frame plug on the inside.

[0038] The large screw rod 3 corresponds to the 12-core plug 16 and is located at the exact center. When the 12-core plug 16 is removed or installed, the large screw rod 3 is screwed into the threaded hole corresponding to the 12-core plug 16 to complete its pulling function.

[0039] There are two small threaded rods 7, corresponding to the 28-core plug 17. The center distance between the two small threaded rods 7 just corresponds to the 28-core plug 17, and the thread sizes also correspond one to one. When disassembling or installing the core frame, the two small threaded rods 7 are respectively screwed into the corresponding threaded holes so that the threads are screwed together for a certain length, and finally the 28-core pin 9 is inserted into the plug hole to complete its pulling function.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A multifunctional puller, characterized in that: The invention comprises a pulling seat (1), wherein a large threaded hole (2) is provided at the top center of the pulling seat (1), a large screw rod (3) is installed in the large threaded hole (2), a core rod (4) is provided at the bottom of the large screw rod (3), a connecting thread (5) is provided on the lower outer side of the core rod (4), the pulling seat (1) is provided with small threaded holes (6) on the left and right sides of the large threaded hole (2), small threaded rods (7) are installed in the small threaded holes (6) on the left and right sides, a 12-core plug pin (8) is slidably installed on the front side of the large screw rod (3) of the pulling seat (1), and a 28-core plug pin (9) is slidably installed on the outer side of the small threaded rod (7) on the left side of the pulling seat (1).

2. A multifunctional puller according to claim 1, characterized in that: The drawing seat (1) is arranged in a T-shaped structure.

3. A multifunctional puller according to claim 2, characterized in that: The pulling seat (1) is provided with a 12-core frame assembly surface (10) at a location corresponding to the 12-core plug pin (8), and the pulling seat (1) is provided with a 28-core frame assembly surface (11) at a location corresponding to the 28-core plug pin (9).

4. A multifunctional puller according to claim 3, characterized in that: A handle (12) is installed on the top of the large screw (3).

5. A multifunctional puller according to claim 4, characterized in that: The large screw (3) and the core rod (4) are arranged as an integrally formed structure.

6. A multifunctional puller according to claim 5, characterized in that: A twisting head (13) is installed on the top of the small threaded rod (7).

7. A multifunctional puller according to claim 6, characterized in that: The angle between the 12-core plug pin (8) and the 28-core plug pin (9) is 90°.

8. A multifunctional puller according to claim 7, characterized in that: The tops of the 12-core plug pin (8) and the 28-core plug pin (9) are both mounted on the pin handle (14).

9. A multifunctional puller according to claim 8, characterized in that: Positioning pins (15) are installed on the lower sides of the 12-core plug pin (8) and the 28-core plug pin (9).

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