CN216975669U

CN216975669U - Valve body assembly for oil field drilling

Info

Publication number: CN216975669U
Application number: CN202220744307.2U
Authority: CN
Inventors: 陈克勤; 刘江; 袁全; 袁明凯; 陈红霞
Original assignee: Jianghan Oilfield Hongjia Machinery Qianjiang Co ltd
Current assignee: Jianghan Oilfield Hongjia Machinery Qianjiang Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-15
Anticipated expiration: 2032-04-01

Abstract

The utility model discloses a valve body assembly for oil field drilling, which relates to the technical field of oil field drilling and comprises a valve body assembly main body, wherein the valve body assembly main body comprises a valve outer casing, a valve gland is arranged on the upper side of the valve outer casing, a base is fixedly installed at the bottom of the valve outer casing, a valve ball replacing mechanism is arranged on the outer side of the valve gland, a buffering and stabilizing mechanism is arranged on the outer side of the valve outer casing, and the valve ball replacing mechanism comprises an upper casing plate. According to the utility model, the matching between the internal structures of the valve ball replacing mechanism is adopted, the clamping between the convex block and the slot is utilized, and the sealing enhancement effect of the expansion rubber strip is matched, so that the connection fit degree between the upper sleeve plate and the lower sleeve plate is improved, the upper sleeve plate and the lower sleeve plate are connected through the bolt and the nut, and meanwhile, the valve ball replacing mechanism is convenient to disassemble, and is convenient to disassemble the outer sleeve shell and the valve gland of the valve body so as to replace the valve ball.

Description

Valve body assembly for oil field drilling

Technical Field

The utility model relates to the technical field of oilfield drilling, in particular to a valve body assembly for oilfield drilling.

Background

When drilling in an oil field, a plunger pump is often used for pumping high-pressure fluid, in order to ensure the reverse flow of the fluid, a valve body assembly is required, the valve body assembly is a one-way valve and generally consists of a valve outer shell, an internal valve ball and a valve ball seat, when the fluid passes through the valve body, the valve ball leaves the valve ball seat, a flow passage is opened, the fluid can pass through, when the fluid reversely flows, the valve ball is seated above the valve ball seat under the action of pressure, the flow passage is closed, and the fluid cannot pass through the valve body.

The following problems exist in the prior art:

1. when the existing valve body assembly for oil field drilling is used, the connection between the valve spring and the valve ball inside the valve outer shell and the valve ball seat is utilized to ensure that fluid can only pass in one direction, and the valve spring and the valve ball are easy to wear and damage and are inconvenient to replace along with the long-term use of the device;

2. when the existing valve body assembly for oilfield drilling is used, high-pressure fluid quickly passes through the valve body assembly, the impact on the device is large, the vibration of the device can be caused, and the stability of the device in the using process is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a valve body assembly for oil field drilling, which aims to provide the capacity of conveniently opening a valve outer shell and replacing a valve spring and a valve ball and solve the problems that the valve spring and the valve ball are easy to wear and damage and inconvenient to replace in the long-term use process of a device; the other purpose is to solve the problem that high-pressure fluid has large impact on the device when passing through the valve body assembly quickly so as to achieve the effect of improving the stability of the device in the use process.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the valve body assembly for oil field drilling comprises a valve body assembly main body, wherein the valve body assembly main body comprises a valve outer casing, a valve gland is arranged on the upper side of the valve outer casing, a base is fixedly mounted at the bottom of the valve outer casing, a valve ball replacing mechanism is arranged on the outer side of the valve gland, and a buffering and stabilizing mechanism is arranged on the outer side of the valve outer casing.

The valve ball replacing mechanism comprises an upper sleeve plate, a slot is formed in the top of the upper sleeve plate, and an expansion rubber strip is arranged inside the slot.

The buffering and stabilizing mechanism comprises an outer circular ring sleeve plate, and an upright post and a damping spring are arranged on the lower side of the outer circular ring sleeve plate.

The technical scheme of the utility model is further improved as follows: the outer surface of the valve gland is fixedly provided with a lower sleeve plate, the bottom of the lower sleeve plate is fixedly provided with a convex block, and the bottom of the expansion rubber strip is fixedly connected with the inner wall of the slot.

The technical scheme of the utility model is further improved as follows: the bottom of lug and the top overlap joint of inflation rubber strip, the inside movable mounting of going up the lagging and having the bolt down, movable mounting has the nut on the surface of bolt.

The technical scheme of the utility model is further improved as follows: the buffering and stabilizing mechanism comprises a supporting plate, one end of the supporting plate is fixedly connected with the outer surface of the base, and a through hole is formed in the supporting plate.

The technical scheme of the utility model is further improved as follows: the inner wall of the outer circular sleeve plate is fixedly connected with the outer surface of the outer valve sleeve shell, the buffering and stabilizing mechanism comprises an upper rubber block, and the top of the upper rubber block is fixedly connected with the bottom of the outer circular sleeve plate.

The technical scheme of the utility model is further improved as follows: the top of stand, damping spring all with the bottom fixed connection of last rubber block, the top fixed mounting of backup pad has lower rubber block, the bottom of stand, damping spring all with the top fixed connection of lower rubber block.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the technical progress that:

1. the utility model provides a valve body assembly for oil field drilling, which adopts the matching between the internal structures of a valve ball replacing mechanism, utilizes the clamping connection between a lug and an inserting groove and the sealing enhancement effect of an expansion rubber strip to improve the connection fit degree between an upper sleeve plate and a lower sleeve plate, connects the upper sleeve plate and the lower sleeve plate through a bolt and a nut, is convenient to disassemble, and is convenient to disassemble a valve body outer sleeve and a valve gland to replace a valve ball.

2. The utility model provides a valve body assembly for oilfield drilling, which adopts the matching between the internal structures of a buffering and stabilizing mechanism, is convenient to connect a base with an external fixing mechanism through a rope through a through hole arranged in a supporting plate, improves the stability of an outer casing of the valve body, utilizes an upright post to provide support for an outer circular casing plate and the supporting plate, is matched with the telescopic action of a damping spring to slow down vibration, and can further buffer the vibration of the device through the matching of a lower rubber block and an upper rubber block.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of the structural valve ball replacement mechanism of the present invention;

FIG. 3 is a schematic cross-sectional view of a structural valve ball replacement mechanism of the present invention;

fig. 4 is a schematic cross-sectional view of the structural buffering and stabilizing mechanism of the present invention.

In the figure: 1. a valve body assembly main body; 2. a valve outer casing; 3. a valve gland; 4. a base; 5. a valve ball replacement mechanism; 6. a buffer stabilizing mechanism; 51. an upper sheathing plate; 511. a slot; 512. expanding the rubber strip; 52. a lower sheathing plate; 521. a bump; 53. a bolt; 531. a nut; 61. an outer annular sleeve plate; 62. a support plate; 63. a through hole; 64. a lower rubber block; 65. feeding a rubber block; 66. a column; 67. a shock absorbing spring.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1 to 4, the present invention provides a valve body assembly for oilfield drilling, which includes a valve body assembly main body 1, the valve body assembly main body 1 includes a valve outer casing 2, a valve gland 3 is disposed on an upper side of the valve outer casing 2, a base 4 is fixedly mounted at a bottom of the valve outer casing 2, a valve ball replacing mechanism 5 is disposed on an outer side of the valve gland 3, a buffering and stabilizing mechanism 6 is disposed on an outer side of the valve outer casing 2, the valve ball replacing mechanism 5 includes an upper casing plate 51, a slot 511 is disposed at a top of the upper casing plate 51, an expansion rubber strip 512 is disposed inside the slot 511, the buffering and stabilizing mechanism 6 includes an outer annular casing plate 61, and an upright column 66 and a damping spring 67 are disposed on a lower side of the outer annular casing plate 61.

In this embodiment, when the valve body assembly main body 1 is used, the valve spring and the valve ball arranged inside the valve outer casing 2 are connected with the valve ball seat, so that the fluid can only pass through in a single direction, when the fluid flows in a reverse direction, the valve ball is seated on the valve ball seat under the action of pressure, and the flow passage is closed.

Example 2

As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the outer surface of the valve gland 3 is fixedly provided with a lower sleeve plate 52, the bottom of the lower sleeve plate 52 is fixedly provided with a projection 521, the bottom of the expansion rubber strip 512 is fixedly connected with the inner wall of the slot 511, the bottom of the projection 521 is overlapped with the top of the expansion rubber strip 512, the inner parts of the upper sleeve plate 51 and the lower sleeve plate 52 are movably provided with a bolt 53, and the outer surface of the bolt 53 is movably provided with a nut 531.

In this embodiment, the clamping between the protruding block 521 and the slot 511 is utilized, and the sealing enhancement effect of the expansion rubber strip 512 is matched, so that the engagement degree between the upper sleeve plate 51 and the lower sleeve plate 52 is improved, the upper sleeve plate 51 and the lower sleeve plate 52 are connected through the bolt 53 and the nut 531, and meanwhile, the valve outer sleeve 2 and the valve gland 3 are convenient to disassemble, and the valve ball is convenient to replace.

Example 3

As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, buffering stabilizing mean 6 is including backup pad 62, the one end of backup pad 62 is connected with the surface fixed connection of base 4, through-hole 63 has been seted up to the inside of backup pad 62, the inner wall of outer ring sleeve board 61 is connected with the surface fixed connection of outer cover shell 2 of valve, buffering stabilizing mean 6 is including last rubber block 65, the top of going up rubber block 65 and the bottom fixed connection of outer ring sleeve board 61, stand 66, damping spring 67's top all with the bottom fixed connection of last rubber block 65, rubber block 64 under the top fixed mounting of backup pad 62, stand 66, damping spring 67's bottom all with the top fixed connection of lower rubber block 64.

In this embodiment, through the inside through-hole 63 of seting up of backup pad 62, conveniently be connected base 4 and outside fixed establishment through the rope, improve the stability of the outer shell of valve 2, utilize stand 66 to provide the support for outer ring sleeve board 61 and backup pad 62, cooperate damping spring 67's telescopic action, slow down the vibration, through the cooperation of lower block rubber 64 and last block rubber 65, can further cushion the vibration of device.

The working principle of the valve body assembly for oilfield drilling is described in detail below.

As shown in fig. 1-4, when the valve body assembly main body 1 is used, through the connection between the valve spring and the valve ball seat arranged inside the valve outer casing 2, it is ensured that the fluid can only pass through in one direction, when the fluid flows in the reverse direction, the valve ball is seated above the valve ball seat under the action of pressure, the flow passage is closed, the engagement between the projection 521 and the slot 511 is utilized, the sealing enhancement function of the expansion rubber strip 512 is matched, the engagement degree between the upper casing plate 51 and the lower casing plate 52 is improved, the upper casing plate 51 and the lower casing plate 52 are connected through the bolt 53 and the nut 531, and the disassembly is convenient, the valve outer casing 2 and the valve gland 3 are convenient to disassemble, the valve ball is replaced, so that the valve body assembly main body 1 has the capability of conveniently opening the valve outer casing and replacing the valve spring and the valve ball, and through the through hole 63 arranged inside the support plate 62, the convenience is connected base 4 and outside fixed establishment through the rope, improves the stability of the outer cover shell 2 of valve, utilizes stand 66 to provide the support for outer ring sleeve board 61 and backup pad 62, and cooperation damping spring 67's flexible effect slows down the vibration, through the cooperation of lower rubber block 64 and last rubber block 65, can further cushion the vibration of device, improves the stability in the device use.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the utility model without departing from the spirit of the inventive concept.

Claims

1. The utility model provides an oil field is valve body assembly for well drilling, includes valve body assembly main part (1), valve body assembly main part (1) is including the outer cover of valve body (2), the upside of the outer cover of valve body (2) is provided with valve gland (3), the bottom fixed mounting of the outer cover of valve body (2) has base (4), its characterized in that: a valve ball replacing mechanism (5) is arranged on the outer side of the valve gland (3), and a buffering and stabilizing mechanism (6) is arranged on the outer side of the valve outer casing (2);

the valve ball replacing mechanism (5) comprises an upper sleeve plate (51), the top of the upper sleeve plate (51) is provided with a slot (511), and an expansion rubber strip (512) is arranged inside the slot (511);

the buffering and stabilizing mechanism (6) comprises an outer circular sleeve plate (61), and an upright post (66) and a damping spring (67) are arranged on the lower side of the outer circular sleeve plate (61).

2. The valve body assembly for oilfield drilling according to claim 1, wherein: the outer surface of the valve gland (3) is fixedly provided with a lower sleeve plate (52), the bottom of the lower sleeve plate (52) is fixedly provided with a convex block (521), and the bottom of the expansion rubber strip (512) is fixedly connected with the inner wall of the slot (511).

3. The valve body assembly for oilfield drilling according to claim 2, wherein: the bottom of the bump (521) is overlapped with the top of the expansion rubber strip (512), a bolt (53) is movably mounted inside the upper sleeve plate (51) and the lower sleeve plate (52), and a nut (531) is movably mounted on the outer surface of the bolt (53).

4. The valve body assembly for oilfield drilling according to claim 1, wherein: buffering stabilizing mean (6) is including backup pad (62), the one end of backup pad (62) is connected with the surface mounting of base (4), through-hole (63) have been seted up to the inside of backup pad (62).

5. The valve body assembly for oilfield drilling according to claim 1, wherein: the inner wall of outer ring lagging (61) is connected with the outer fixed surface of the outer casing of valve (2), buffering stabilizing mean (6) is including last block rubber (65), the top of going up block rubber (65) and the bottom fixed connection of outer ring lagging (61).

6. The valve body assembly for oilfield drilling according to claim 4, wherein: the top of stand (66), damping spring (67) all with the bottom fixed connection of last rubber block (65), the top fixed mounting of backup pad (62) has lower rubber block (64), the bottom of stand (66), damping spring (67) all with the top fixed connection of lower rubber block (64).