Gas production fracturing acidizing wellhead device

Abstract

The utility model discloses a gas production fracturing acidizing wellhead device which comprises a wellhead Christmas tree body and a hand wheel driving a valve on the wellhead Christmas tree body to rotate, the hand wheel comprises a circular ring and an installation head which are concentric, the circular ring and the installation head are connected through a plurality of connecting rods, one connecting rod is provided with a handle, and the other connecting rod is provided with a valve. A clamping block is arranged at the end, close to the connecting rod, of the handle, a plurality of inserting grooves allowing the clamping block to be connected in an inserted mode are formed in the surface of the connecting rod, a pair of buckle plates is movably installed on the two sides of the clamping block, wedge-shaped blocks are arranged at the ends, extending into the handle, of the buckle plates, first springs are installed between the wedge-shaped blocks and the inner wall of the handle, and a pressing rod penetrates through the interior of the handle. A cone pressing block is arranged at the end, close to the wedge-shaped block, of the pressing rod. The pinch plate is opened by pressing the pressing rod, the pinch plate is buckled on the connecting rod when the clamping block is clamped in the slot and then the pressing rod is loosened, so that the position of the handle on the connecting rod is locked, the position adjustment of the handle can be completed only by one hand, and the operation is more convenient and labor-saving.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil and gas exploitation technical field especially is a kind of gas extraction fracturing acidification wellhead device. BACKGROUND

[0002] Gas extraction fracturing acidification wellhead device is important equipment to ensure normal production of oil well, generally including straight pipe, pipe head, valve, blowout preventer group etc., for controlling gas, liquid fluid pressure and direction, and wellhead device is different in different use scenarios, but valve is essential component.

[0003] Handle is equipped on the valve hand wheel of wellhead device, to facilitate rotation while also considering labor saving, therefore, handle is generally arranged at the edge of hand wheel to increase the torque required for rotation, but in actual operation process, in the case of no pressure or pressure is not high, the torque required for hand wheel rotation is small, when handle rotates hand wheel, speed is very slow, and it is more troublesome to rotate valve more than ten times, therefore, currently, some wellhead devices are equipped with hand wheel that can adjust the position of handle, but in the existing device, when handle is adjusted on hand wheel, one hand needs to control handle, and the other hand needs to control locking bolt, and the adjustment is more troublesome by two-hand operation.

[0004] Therefore, we propose a kind of gas extraction fracturing acidification wellhead device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of gas extraction fracturing acidification wellhead device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of gas extraction fracturing acidification wellhead device, including wellhead Christmas tree body and the hand wheel of driving wellhead Christmas tree body upper valve rotation, the hand wheel includes circular ring and mounting head with same center, and circular ring and mounting head are connected by several connecting rods, one of connecting rods is installed handle, the end of handle close to connecting rod is equipped with clamping block, and the surface of connecting rod is equipped with several insertion slots for the insertion of clamping block, a pair of buckling plates are movably installed on the both sides of clamping block, and the end of buckling plate inserted into handle is equipped with wedge block, and spring one is installed between wedge block and the inner wall of handle, the handle is penetrated by pressure rod, and the end of pressure rod close to wedge block is equipped with conical pressure block, and conical pressure block is matched with the inclined surface of wedge block.

[0008] In further embodiments, the outer dimension of the clamping block matches the inner dimension of the insertion slot, and the end of the clamping block adopts a conical structure.

[0009] In further embodiments, the cross section of the clamping block and the insertion slot both adopt a non-circular structure.

[0010] In further embodiments, the side of the connecting rod corresponding to each slot is provided with a pair of notched slots, and the width of the notched slots is greater than the width of the buckle plate.

[0011] In further embodiments, the end of the pressing rod extending into the handle is peripherally provided with a protruding ring, a spring two is connected between the protruding ring and the inner top surface of the handle, and the pressing rod penetrates the inside of the spring two.

[0012] In further embodiments, the lower end of the buckle plate is provided with a flat supporting portion, and when the end portion of the handle abuts against the upper surface of the connecting rod, the flat supporting portion abuts against the lower surface of the connecting rod.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model sets up when the user holds the handle with one hand, the operation presses the pressing rod, can make the buckle plate open through the extrusion of the cone pressing block and the wedge block, thereby clamping the clamping block in the slot, and when the pressing rod is loosened, the buckle plate is retracted under the elastic action of the spring one, the buckle plate is buckled on the connecting rod, thereby locking the position of the handle on the connecting rod, so that the position adjustment of the handle can be completed only by one-hand operation, which is more convenient and labor-saving, and effectively shortens the preparation time before operating the wellhead device valve rotation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a structural schematic view of the hand wheel of the utility model;

[0017] Figure 3 It is a half cut structural schematic view of the handle and the connecting rod installation of the utility model;

[0018] Figure 4 It is a half cut structural schematic view of the connecting place of the cone pressing block and the wedge block of the utility model.

[0019] In the drawing: 1, wellhead Christmas tree body; 2, hand wheel; 3, circular ring; 4, mounting head; 5, connecting rod; 51, slot; 52, notched slot; 6, handle; 61, clamping block; 7, buckle plate; 71, wedge block; 72, flat supporting portion; 8, pressing rod; 81, cone pressing block; 9, spring one; 10, protruding ring; 11, spring two. DETAILED DESCRIPTION

[0020] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0021] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely in the drawings in 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 ordinary skilled persons in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-2 A kind of gas fracturing acidification wellhead device, including wellhead Christmas tree body 1 and drive wellhead Christmas tree body 1 on valve rotation hand wheel 2, hand wheel 2 includes circular ring 3 and mounting head 4 with the same center, and circular ring 3 and mounting head 4 are connected by several connecting rods 5, the extension line of connecting rod 5 passes the axis of mounting head 4, mounting head 4 is used to be installed with the valve stem of valve, circular ring 3 is located outside mounting head 4, and circular ring 3, mounting head 4 and connecting rod 5 are integrally cast into shape, reduce production processing cost, one of connecting rod 5 is installed with handle 6, handle 6 is perpendicular relative to connecting rod 5, to facilitate the operation control hand wheel 2 rotation.

[0024] Please refer to Figures 3-4, in order to facilitate the control handle 6 on the connecting rod 5 position adjustment, to adapt to different rotating torque requirements, the handle 6 is provided with a clamping block 61 near one end of the connecting rod 5, and the connecting rod 5 surface is provided with several insertion slots 51 for the clamping block 61, the insertion slots 51 are equidistantly distributed along the length direction of the connecting rod 5, by clamping block 61 into different position insertion slot 51, the position of the handle 6 can be adjusted, in order to improve the clamping block 61 into the insertion slot 51 connection stability, the clamping block 61 is provided with a pair of buckling plate 7 movably installed on both sides, and the end of the buckling plate 7 extending into the handle 6 is provided with a wedge block 71, the wedge block 71 is installed between the inner wall of the handle 6 and the buckling plate 7, the handle 6 is provided with a pressure rod 8, and the end of the pressure rod 8 near the wedge block 71 is provided with a conical pressure block 81, the conical pressure block 81 is in contact with the inclined surface of the wedge block 71, when the pressure rod 8 is pressed towards the inside of the handle 6, the conical pressure block 81 extrudes the wedge block 71, so that the wedge block 71 drives the buckling plate 7 to move outward and open, at this time the distance between the two buckling plates 7 is greater than the width of the connecting rod 5, so that the buckling plate 7 can be buckled on both sides of the connecting rod 5, and after the pressure rod 8 is released, the buckling plate 7 is retracted under the elastic action of the spring I 9, the buckling plate 7 is buckled on the side of the connecting rod 5, the buckling plate 7 is in close contact with the connecting rod 5, so as to lock the position of the handle 6 and improve the stability.

[0025] Further, the lower end of the buckling plate 7 is provided with a flat supporting part 72, when the end of the handle 6 is in close contact with the upper surface of the connecting rod 5, the flat supporting part 72 is in close contact with the lower surface of the connecting rod 5, which further improves the stability of the buckling plate 7 when buckling, and the side edge of the connecting rod 5 is provided with a pair of notched grooves 52 corresponding to each insertion slot 51, and the width of the notched groove 52 is greater than the width of the buckling plate 7, so as to facilitate the buckling plate 7 to be buckled into the notched groove 52 for positioning.

[0026] Please refer to Figure 4 , in order to facilitate the clamping block 61 to be quickly inserted into the insertion slot 51, the outer dimension of the clamping block 61 is consistent with the inner dimension of the insertion slot 51, and the end of the clamping block 61 adopts a conical structure, so that the tip size of the clamping block 61 is small, which is convenient for insertion into the insertion slot 51, and the cross section of the clamping block 61 and the insertion slot 51 is non-circular structure, which can effectively prevent the clamping block 61 and the insertion slot 51 from being deflected when connected.

[0027] Please refer to Figure 3 , in order to ensure that the pressure rod 8 and the buckling plate 7 can be normally reset, the end of the pressure rod 8 extending into the handle 6 is provided with a convex ring 10, the convex ring 10 is connected with the inner top surface of the handle 6 through a spring 11, and the pressure rod 8 penetrates the inside of the spring 11, so that when the pressure rod 8 is pressed down, the spring 11 is elongated, and when the pressure rod 8 is released, the spring 11 has the second elastic reset effect.

[0028] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0029] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A gas fracturing and acidizing wellhead device, comprising a wellhead Christmas tree body (1) and a hand wheel (2) for driving the rotation of a valve on the wellhead Christmas tree body (1), characterized in that: The hand wheel (2) comprises a circular ring (3) and a mounting head (4) with the same center, and the circular ring (3) and the mounting head (4) are connected through a plurality of connecting rods (5), one of the connecting rods (5) is provided with a handle (6), the handle (6) is provided with a clamping block (61) near one end of the connecting rod (5), the connecting rod (5) is provided with a plurality of insertion grooves (51) for the clamping block (61), a pair of buckling plates (7) are movably arranged on both sides of the clamping block (61), one end of the buckling plate (7) extending into the handle (6) is provided with a wedge block (71), a spring (9) is arranged between the wedge block (71) and the inner wall of the handle (6), the handle (6) is provided with a pressure rod (8) penetrating therethrough, and the pressure rod (8) is provided with a conical pressure block (81) near the wedge block (71), and the conical pressure block (81) is in contact with the inclined surface of the wedge block (71).

2. A gas fracturing and acidizing wellhead apparatus according to claim 1, characterized in that: The outer dimension of the clamping block (61) is consistent with the inner dimension of the insertion groove (51), and the end of the clamping block (61) is provided with a conical structure.

3. A gas fracturing and acidizing wellhead apparatus according to claim 1, characterized in that: The cross sections of the clamping block (61) and the insertion groove (51) are both provided with a non-circular structure.

4. A gas fracturing and acidizing wellhead apparatus according to claim 1, characterized in that: The side of the connecting rod (5) is provided with a pair of notch grooves (52) corresponding to each insertion groove (51), and the width of the notch groove (52) is greater than the width of the buckling plate (7).

5. A gas fracturing and acidizing wellhead apparatus according to claim 1, wherein: The end of the pressure rod (8) extending into the handle (6) is provided with a convex ring (10) fixed thereon, the convex ring (10) and the inner top surface of the handle (6) are connected through a spring (11), and the pressure rod (8) penetrates through the spring (11).

6. A gas fracturing and acidizing wellhead apparatus according to claim 1, characterized in that: The lower end of the buckling plate (7) is provided with a flat supporting part (72), when the end of the handle (6) is close to the upper surface of the connecting rod (5), the flat supporting part (72) is close to the lower surface of the connecting rod (5).

Images