Novel hollow sucker rod elevator device

Abstract

The utility model discloses a novel hollow sucker rod elevator device, which relates to the technical field of hollow sucker rod elevators and comprises an elevator, a connecting pipe is arranged on the inner wall of the elevator in a matched manner, a hollow sucker rod body is arranged on the inner wall of the connecting pipe, and the hollow sucker rod body is arranged on the inner wall of the connecting pipe by connecting the outer wall of a connecting block with a concave block through glue and sliding a concave plate on the outer surface of the connecting block. The limiting block fixed to the outer surface of the concave plate is matched with the inner wall of the limiting groove, the top end of the base makes contact with the bottom end of the elevator, limiting installation between the other end of the hollow sucker rod body and the elevator is facilitated, and therefore stable installation of the hollow sucker rod body in the connecting pipe is facilitated; the outer wall of the sealing ring and the inner wall of the connecting pipe slide, the outer wall of the connecting column and the outer wall of the connecting pipe are arranged in a sleeving mode, the first sealer is installed on the inner wall of the connecting pipe, and the second sealer is installed at one end of the protective cover, so that crude oil in the hollow drawing rod is prevented from overflowing from the sealer opening.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow sucker rod elevators, in particular to a novel hollow sucker rod elevator device. Background Art

[0002] An elevator is a tool for lifting a hollow sucker rod and an outlet device for facilitating the heating cable.

[0003] Based on the above, the inventor found that: at present, there are many hollow sucker rod elevator devices on the market. However, for general hollow sucker rod elevator devices, it is very easy for crude oil to penetrate into the hollow sucker rod and seep out from the side of the elevator tee. As a result, the number of times of replacing the hollow sucker rod during production shutdown operations increases, the service life of the hollow sucker rod is reduced, and the crude oil output is decreased. Therefore, in view of this, the existing structure is studied and improved to provide a novel hollow sucker rod elevator device in order to achieve a more practical value. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A novel hollow sucker rod elevator device of the utility model includes an elevator. A connecting pipe is arranged on the inner wall of the elevator in a matching way. A hollow sucker rod body is arranged on the inner wall of the connecting pipe. A base is threaded on the outer surface of the elevator. The inner wall of the base is arranged in a matching way with the outer wall of the hollow sucker rod body. A sealing mechanism is arranged on the outer surface of the connecting pipe. An installation mechanism is arranged at the top of the elevator. A limiting mechanism is arranged on the outer surface of the hollow sucker rod body;

[0006] The sealing mechanism includes:

[0007] A protective cover. One side of the protective cover is adhesively connected to the outer surface of the connecting pipe. A first seal is arranged on the inner wall of the protective cover. The inner wall of the first seal is arranged in a matching way with the outer surface of the hollow sucker rod body. A second seal is adhesively connected to the outer surface of the protective cover. The inner wall of the second seal is arranged in a matching way with the outer wall of the stainless steel heating cable body.

[0008] As a preferred technical solution of the utility model, a gasket is arranged on the inner wall of the base. The inner wall of the gasket slides with the outer wall of the hollow sucker rod body.

[0009] As a preferred technical solution of the utility model, a sealing ring is arranged at one end of the first seal. The outer wall of the sealing ring is arranged in a matching way with the inner wall of the connecting pipe. A connecting column is arranged on the outer surface of the sealing ring in a matching way. The outer wall of the connecting column is sleeved on the outer surface of the connecting pipe.

[0010] As a preferred technical solution of the utility model, the installation mechanism includes:

[0011] The internal thread column, the bottom end of the internal thread column is fixed to the top end of the lifting clamp, the inner wall of the internal thread column is threaded with an external screw rod, and the top end of the external screw rod is fixed with a suspension rod.

[0012] As a preferred technical solution of the present invention, the limiting mechanism includes:

[0013] A concave block, the outer surface of the concave block is fixed to the outer wall of the protective cover, the outer wall of the concave block is adhesively connected with a connecting block, and the outer surface of the connecting block is fixed to the outer surface of the stainless steel heating cable body.

[0014] As a preferred technical solution of the present invention, the outer surface of the concave block is adhesively connected with a concave plate, and the outer surface of the concave plate slides on the outer wall of the connecting block.

[0015] As a preferred technical solution of the present invention, two limiting blocks are fixed on one side of the concave plate, two limiting grooves are formed on the outer surface of the concave block, and the inner walls of the two limiting grooves are respectively and matchingly arranged with the outer surfaces of the limiting blocks and are matched with the outer diameter of the stainless steel heating cable.

[0016] The beneficial effects of the present invention are:

[0017] 1. In this solution, by adhesively connecting the outer wall of the connecting block with the concave block, and using the concave plate to slide on the outer surface of the connecting block, so that the limiting block fixed on the outer surface of the concave plate is matchingly arranged with the inner wall of the limiting groove, it is convenient to strengthen the stable limit between one end of the stainless steel heating cable body and the protective cover. The top end of the base contacts the bottom end of the lifting clamp, and then the top end of the gasket is tightly connected with the bottom end of the connecting pipe, which is convenient for the limiting installation between the other end of the hollow sucker rod body and the lifting clamp, so it is beneficial to the stable installation of the hollow sucker rod body inside the connecting pipe.

[0018] 2. In this solution, by sliding the outer wall of the sealing ring on the inner wall of the connecting pipe, sleeving the outer wall of the connecting column on the outer wall of the connecting pipe until the connecting column is embedded and installed with the outer wall of the sealing ring, installing the first seal on the inner wall of the connecting pipe, and installing the second seal at one end of the protective cover, so that the protective cover and the stainless steel heating cable body are firmly installed, thereby preventing the crude oil in the hollow sucker rod from overflowing from the seal port, preventing the crude oil from penetrating into the hollow sucker rod after the hollow sucker rod is corroded and perforated after long-term use and then penetrating out from the side of the lifting clamp tee, avoiding the number of times of shutting down for replacing the hollow sucker rod, increasing the service life of the hollow sucker rod, increasing the output of crude oil, and reducing the number of operations. Description of the Drawings

[0019] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the description. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0020] Figure 1 is a schematic structural view of a novel hollow sucker rod elevator device of the present utility model;

[0021] Figure 2 is a schematic structural view of an exploded view of the separation of the base and the elevator of a novel hollow sucker rod elevator device of the present utility model;

[0022] Figure 3 is a schematic structural view of an exploded view of the sealing mechanism of a novel hollow sucker rod elevator device of the present utility model;

[0023] Figure 4 is a schematic structural view of an exploded view of the limiting mechanism of a novel hollow sucker rod elevator device of the present utility model.

[0024] In the figure: 1. Elevator; 2. Connecting pipe; 3. Hollow sucker rod body; 4. Base; 5. Sealing mechanism; 51. Protective cover; 52. First seal; 53. Second seal; 54. Sealing ring; 55. Connecting column; 6. Mounting mechanism; 61. Internal thread column; 62. External screw rod; 63. Suspension rod; 7. Limiting mechanism; 71. Concave block; 72. Connecting block; 73. Concave plate; 74. Limiting block; 75. Limiting groove; 8. Gasket; 9. Stainless steel heating wire. Specific embodiments

[0025] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model and are not used to limit the present utility model.

[0026] Embodiment: As Figures 1-4 shown, a novel hollow sucker rod elevator device of the present utility model includes an elevator 1. A connecting pipe 2 is arranged on the inner wall of the elevator 1 in a matching manner. The height dimension of the elevator 1 is seventeen centimeters, and the diameter of the elevator 1 is eight centimeters. The inclined angle of the three-way outlet of the elevator body is 120 degrees, the length of the upper part is about 11 cm, the length of the lower part is about 20 cm, and the diameter is 3 cm. A hollow sucker rod body 3 is arranged on the inner wall of the connecting pipe 2. A base 4 is threaded on the outer surface of the elevator 1. The inner wall of the base 4 is arranged in a matching manner with the outer wall of the hollow sucker rod body 3. A sealing mechanism 5 is arranged on the outer surface of the connecting pipe 2. A mounting mechanism 6 is arranged at the top of the elevator 1. A limiting mechanism 7 is arranged on the outer surface of the hollow sucker rod body 3;

[0027] The sealing mechanism 5 includes:

[0028] The protective cover 51, one side of the protective cover 51 is adhesively connected to the outer surface of the connecting pipe 2. The inner wall of the protective cover 51 is provided with a first seal 52, and the inner wall of the first seal 52 is arranged to match the outer surface of the hollow sucker rod body 3. The outer surface of the protective cover 51 is adhesively connected with a second seal 53, and the inner wall of the second seal 53 is arranged to match the outer wall of the hollow sucker rod body 3. One end of the first seal 52 is provided with a sealing ring 54, the outer wall of the sealing ring 54 is arranged to match the inner wall of the connecting pipe 2, and the outer surface of the sealing ring 54 is provided with a connecting column 55 which is sleeved on the outer surface of the connecting pipe 2.

[0029] As shown in the Figure 2 attachment, a gasket 8 is provided on the inner wall of the base 4, and the inner wall of the gasket 8 slides on the outer wall of the hollow sucker rod body 3. The center of the base 4 moves from the outlet 9(2) of the pumping body lifting clamp tee by means of the stainless steel heating wire 9(1), which is convenient for improving the fastening of the connection between the bottom end of the lifting clamp 1 and the hollow sucker rod body 3.

[0030] As shown in the Figure 1 and Figure 3 attachment, the installation mechanism 6 includes:

[0031] An internal thread column 61, the bottom end of the internal thread column 61 is fixed to the top end of the lifting clamp 1, and an external screw rod 62 is threaded on the inner wall of the internal thread column 61. The top end of the external screw rod 62 is fixed with a suspension rod 63, which is convenient for hanging and placing the device and is beneficial to the normal use of the device.

[0032] As shown in the Figure 1 and Figure 4 attachment, the limiting mechanism 7 includes:

[0033] A concave block 71, the outer surface of the concave block 71 is fixed to the outer wall of the protective cover 51. The outer wall of the concave block 71 is adhesively connected with a connecting block 72, and the outer surface of the connecting block 72 is fixed to the outer surface of the stainless steel heating wire body 3. The outer surface of the concave block 71 is adhesively connected with a concave plate 73, and the outer surface of the concave plate 73 slides on the outer wall of the connecting block 72. One side of the concave plate 73 is fixed with two limiting blocks 74, and two limiting grooves 75 are opened on the outer surface of the concave block 71. The inner walls of the two limiting grooves 75 are arranged to match the outer surfaces of the limiting blocks 74, which is convenient for the limiting installation between the stainless steel heating wire 9(2) body 3 and the protective cover 51 and avoids the stainless steel heating wire body 3 from shaking inside the protective cover 51.

[0034] Working principle: The outer surface of the hollow sucker rod body 3 is sleeved with the inner wall of the connecting pipe 2, the top end of the base 4 is in contact with the bottom end of the elevator 1, and then the top end of the gasket 8 is tightly connected to the bottom end of the connecting pipe 2. The outer wall of the sealing ring 54 slides on the inner wall of the connecting pipe 2. The outer wall of the connecting column 55 is sleeved with the outer wall of the connecting pipe 2 until the connecting column 55 is embedded and installed with the outer wall of the sealing ring 54. The first seal 52 is installed on the inner wall of the connecting pipe 2, and the second seal 53 is installed at one end of the protective cover 51, so that the protective cover 51 is stably installed with the stainless steel heating wire body 3. The outer wall of the connecting block 72 is adhesively connected to the concave block 71. The concave plate 73 slides on the outer surface of the connecting block 72, and the limiting block 74 fixed on the outer surface of the concave plate 73 is matched with the inner wall of the limiting groove 75, thus preventing the crude oil in the hollow sucker rod from overflowing from the seal port.

[0035] Finally, it should be noted that in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel hollow sucker rod elevator device, comprising an elevator (1), the inner wall of the elevator (1) being matched with a connecting pipe (2), the inner wall of the connecting pipe (2) being provided with a hollow sucker rod body (3), characterized in that: The outer surface of the elevator (1) is threaded with a base (4), the inner wall of the base (4) is matched with the outer wall of the hollow sucker rod body (3), the outer surface of the connecting pipe (2) is provided with a sealing mechanism (5), the top end of the elevator (1) is provided with a mounting mechanism (6), and the outer surface of the hollow sucker rod body (3) is provided with a limiting mechanism (7); The sealing mechanism (5) comprises: A protective cover (51), one side of the protective cover (51) is glue-connected to the outer surface of the connecting pipe (2), the inner wall of the protective cover (51) is provided with a first sealer (52), the inner wall of the first sealer (52) is matched with the outer surface of the hollow sucker rod body (3), the outer surface of the protective cover (51) is glue-connected to a second sealer (53), the inner wall of the second sealer (53) is matched with the outer wall of the hollow sucker rod body (3).

2. A novel hollow sucker rod elevator device according to claim 1, characterized in that: The inner wall of the base (4) is provided with a gasket (8), the inner wall of the gasket (8) slides with the outer wall of the hollow sucker rod body (3), and a stainless steel heating wire (9) is fixed to the outer surface of the base (4).

3. A novel hollow sucker rod elevator device according to claim 1, characterized in that: A sealing ring (54) is provided at one end of the first sealer (52), the outer wall of the sealing ring (54) is matched with the inner wall of the connecting pipe (2), the outer surface of the sealing ring (54) is matched with a connecting column (55), and the outer wall of the connecting column (55) is sleeved with the outer surface of the connecting pipe (2).

4. A novel hollow sucker rod elevator device according to claim 1, characterized in that: The mounting mechanism (6) comprises: An inner thread column (61), the bottom end of which is fixed to the top end of the hanging card (1), an outer thread rod (62) is threaded on the inner wall of the inner thread column (61), and a hanging rod (63) is fixed to the top end of the outer thread rod (62).

5. The novel hollow sucker rod elevator device according to claim 1 is characterized in that: The limiting mechanism (7) comprises: A concave block (71), the outer surface of which is fixed to the outer wall of the protective cover (51), and the outer wall of the concave block (71) is glue-connected to a connecting block (72).

6. A novel hollow sucker rod elevator device according to claim 5, characterized in that: The outer surface of the concave block (71) is glue-connected with a concave plate (73), and the outer surface of the concave plate (73) slides with the outer wall of the connecting block (72).

7. A novel hollow sucker rod elevator device according to claim 6, characterized in that: Two limiting blocks (74) are fixed on one side of the concave plate (73), and two limiting grooves (75) are provided on the outer surface of the concave block (71), and the inner walls of the two limiting grooves (75) are matched with the outer surface of the limiting block (74).

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