CN211203612U - Adapter and grease injection device with same - Google Patents

Abstract

The utility model provides an adapter and have its notes fat device. The crossover sub includes: the first connecting part comprises a first connecting column and a first flange connected with the first connecting column; the second connecting part is detachably connected with the first connecting part; wherein, along the axis direction of first flange, first connecting portion still include the first axial through-hole that link up first flange and first spliced pole, and the second connecting portion include the second spliced pole and set up the second axial through-hole on the second spliced pole, and second axial through-hole and first axial through-hole intercommunication have the interval between the terminal surface of the axial terminal surface of the first flange of orientation of second spliced pole and the terminal surface of the orientation second connecting portion of first flange after second connecting portion and first connecting portion equipment are as an organic whole. The technical scheme of the utility model the interface of valve and the lower problem of work efficiency of annotating the fat operation that leads to because the connector of annotating the fat rifle mismatch among the prior art has been solved.

Description

Adapter and grease injection device with same

Technical Field

The utility model relates to an adapter technical field particularly, relates to an adapter and have its notes fat device.

Background

On the production site of the oil and gas field, various valves of different types are connected to each process flow device, and the valves need to be maintained every year, namely, the valves installed on the process flow of the oil and gas field device need to be maintained and greased. However, the connection modes of the application of the grease injection gun are various at present, wherein the connector of some grease injection guns is of a clamping and hanging type, and the connectors of most valves are of a threaded type, when maintenance operation is carried out, because the connectors of most valves are not matched with the connectors of the clamping and hanging type grease injection guns, in the grease injection operation process, lubricating grease/sealing grease can leak, so that the maintenance quality is not in place, the grease injection effect is not enough to meet the requirement of the technical quality of the maintenance valve, in addition, the grease injection operation steps are complicated, more difficulties are brought to the operator for maintaining the maintenance valve, the grease injection operation process takes time and labor, the working efficiency is low, and the production benefit is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a crossover sub and have its notes fat device to solve among the prior art because the interface of valve and the connector of annotating the fat rifle mismatch and the lower problem of work efficiency of the notes fat operation that leads to.

In order to achieve the above object, according to an aspect of the present invention, there is provided an adapter including: the first connecting part comprises a first connecting column and a first flange connected with the first connecting column; the second connecting part is detachably connected with the first connecting part; wherein, along the axis direction of first flange, first connecting portion still include the first axial through-hole that link up first flange and first spliced pole, and the second connecting portion include the second spliced pole and set up the second axial through-hole on the second spliced pole, and second axial through-hole and first axial through-hole intercommunication have the interval between the terminal surface of the axial terminal surface of the first flange of orientation of second spliced pole and the terminal surface of the orientation second connecting portion of first flange after second connecting portion and first connecting portion equipment are as an organic whole.

Furthermore, the outer peripheral surface of the first connecting column is provided with a first external thread, and the inner wall surface of the second axial through hole is provided with a first internal thread matched with the first external thread, so that the first connecting column is in threaded connection with the second connecting column.

Further, the second axial through hole comprises a first hole section and a second hole section connected with the first hole section, wherein the aperture of the second hole section is smaller than that of the first hole section, the first internal thread is arranged on the inner wall of the second hole section, and the first hole section is connected with a valve of a component to be greased.

Furthermore, the second connecting portion further comprises a first radial through hole formed in the second connecting column, the first radial through hole is communicated with the second axial through hole, and the conversion joint further comprises a pressure release piece connected with the first radial through hole.

Further, the pressure relief piece comprises a body part and a nut connected with the body part, and a blind hole is formed in one end, far away from the nut, of the body part.

Furthermore, one or more second radial through holes communicated with the blind holes are formed in the outer wall surface of the body part.

Furthermore, the adapter also comprises a screwing part arranged on the outer wall surface of the second connecting column.

Further, the outer contour of the cross section of the second connecting column is hexagonal, so that the second connecting portion is of an outer hexagonal structure, and the outer hexagonal structure forms a screwing portion.

According to another aspect of the utility model, a annotate fat device is provided, including annotating the fat rifle and with annotating the crossover sub that the fat rifle is connected, the crossover sub is foretell crossover sub.

Furthermore, annotate the fat device and still include the connector of being connected with annotating the fat rifle, the connector has the draw-in groove, and first flange card is established in the draw-in groove.

Further, the adapter includes a plurality of second connecting portions, the first connecting portion is selectively connected with one of the plurality of second connecting portions, and the plurality of second axial through holes of the plurality of second connecting posts have different apertures.

By applying the technical proposal of the utility model, when the second connecting part and the first connecting part are assembled into a whole, a space is arranged between the axial end surface of the second connecting column facing the first flange and the end surface of the first flange facing the second connecting part, so that a part of the connector of the grease injection device can be clamped in the space, simultaneously first flange card is in the draw-in groove of connector, can be connected crossover sub and above-mentioned connector through the joint mode, the simple easy operation of connected mode, the draw-in groove phase-match of first flange and connector, assembling process convenient and fast, the operation degree of difficulty when annotating the fat operation for the valve of maintenance operating personnel has been reduced, work efficiency is improved, the lower problem of work efficiency of notes fat operation that has solved because of the interface of valve and the connector of annotating the fat rifle mismatch and lead to, therefore, the clothes hanger is strong in practicability, have better popularization and application prospect in the aspect of the oil gas field.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded schematic view of an embodiment of an adapter according to the present invention;

FIG. 2 shows a perspective view of the crossover joint of FIG. 1;

FIG. 3 shows a cross-sectional view of the crossover joint of FIG. 2;

FIG. 4 shows a schematic view of a first connection portion of the crossover joint of FIG. 1;

FIG. 5 shows a schematic view of a second connection portion of the crossover joint of FIG. 1;

FIG. 6 shows a cross-sectional view of the second connection of FIG. 5;

FIG. 7 illustrates a schematic structural view of a release member of the crossover joint of FIG. 1;

FIG. 8 shows a cross-sectional view of the release of FIG. 7;

fig. 9 shows a schematic structural diagram of a connecting head of an embodiment of a grease injection device according to the present invention;

fig. 10 shows a schematic view of a connector of an embodiment of a grease filling device according to the present invention during assembly with the adapter of fig. 2;

fig. 11 shows a schematic structural diagram of the joint of the grease injecting device according to the embodiment of the present invention after being assembled with the adapter of fig. 2.

FIG. 12 is an exploded view of the interface and the interface gland of the valve of the component to be greased;

FIG. 13 is an exploded view of the interface of the valve of the component to be greased and the crossover joint of FIG. 2; and

fig. 14 shows a schematic structural view of another embodiment of the interface of the valve of the component to be greased.

Wherein the figures include the following reference numerals:

10. a first connection portion; 11. a first flange; 12. a first connecting column; 121. a first external thread; 13. a first axial through hole; 20. a second connecting portion; 21. a second connecting column; 22. a second axial through hole; 221. a first bore section; 222. a second bore section; 223. a third bore section; 23. a first radial through hole; 24. a screwing part; 30. a release member; 31. a body portion; 311. a second radial through hole; 32. a nut; 40. spacing; 50. an interface; 51. a second external thread; 52. an interface gland bush; 60. a connector; 61. a card slot; 62. a third axial through hole; 63. a notch; 64. a claw is provided.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

As shown in fig. 1 to 3, in the embodiment of the present invention, the adapter includes a first connecting portion 10 and a second connecting portion 20 detachably connected to the first connecting portion 10, the first connecting portion 10 includes a first connecting post 12 and a first flange 11 connected to the first connecting post 12; wherein, along the axis direction of first flange 11, first connecting portion 10 still includes the first axial through-hole 13 that link up first flange 11 and first spliced pole 12, and second connecting portion 20 includes second spliced pole 21 and sets up the second axial through-hole 22 on second spliced pole 21, and second axial through-hole 22 communicates with first axial through-hole 13, and after second connecting portion 20 and first connecting portion 10 equipment as an organic whole, the axial terminal surface of the first flange 11 of orientation of second spliced pole 21 and the terminal surface towards second connecting portion 20 of first flange 11 have interval 40 between.

In the above technical solution, the first connecting portion 10 and the second connecting portion 20 are detachably connected, so that the first connecting portion 10 and the second connecting portion 20 are convenient to mount and dismount, easy to replace, durable and long in service life; the first connecting column 12 and the first flange 11 are of an integrally formed structure, the first flange 11 and the first connecting column 12 are of a cylindrical structure, the outer diameter of the first flange 11 is larger than that of the first connecting column 12, and the first connecting column 12 and the first flange 11 form a T-shaped structure for connecting the first connecting part 10 and the grease gun; the first axial through hole 13 penetrates through the first flange 11 and the first connecting column 12, the second axial through hole 22 penetrates through the second connecting column 21, and when the first connecting part 10 and the second connecting part 20 are assembled into a whole, the first axial through hole 13 and the second axial through hole 22 are communicated, so that the adapter is provided with a through hole along the axial direction, and a grease injection passage is formed on the adapter; meanwhile, when the first connecting part 10 and the second connecting part 20 are assembled into a whole, a space 40 is formed between the second connecting column 21 and the first flange 11, and is used for connecting the adapter formed by assembling the first connecting part 10 and the second connecting part 20 with the grease gun.

Through the arrangement, after the second connecting part 20 and the first connecting part 10 are assembled into a whole, a gap 40 is arranged between the axial end surface of the second connecting post 21 facing the first flange 11 and the end surface of the first flange 11 facing the second connecting part 20, so that a part of the connector 60 of the grease injection device can be clamped in the gap 40, meanwhile, the first flange 11 is clamped in the clamping groove 61 of the connector 60, the adapter can be connected with the connector 60 through the clamping mode, the connecting mode is simple and easy to operate, the first flange 11 is matched with the clamping groove 61 of the connector 60, the assembling process is convenient and rapid, the operation difficulty of maintenance operators in the grease injection operation of the valve is reduced, the working efficiency is improved, the problem of low working efficiency of the grease injection operation caused by the mismatching of the connector of the valve and the connector of the grease injection gun is solved, and the practicability is strong, has better popularization and application prospect in the aspect of oil and gas fields.

Preferably, as shown in fig. 1 and 3 to 6, in an embodiment of the present invention, the outer peripheral surface of the first connecting column 12 has a first external thread 121, the inner wall surface of the second axial through hole 22 is provided with a first internal thread matching with the first external thread 121, and the first connecting column 12 is in threaded connection with the second connecting column 21.

Among the above-mentioned technical scheme, first internal thread sets up on the internal face with the corresponding second spliced pole 21 of second axial through-hole 22, first spliced pole 12 and second spliced pole 21 threaded connection, make first connecting portion 10 and second connecting portion 20 threaded connection, first connecting portion 10 assembles as an organic wholely with second connecting portion 20, thereby form crossover sub, moreover, the steam generator is simple in structure, the manufacture is simple, threaded connection's mode makes installation between first connecting portion 10 and the second connecting portion 20, the dismantlement is convenient easy to operate, and make the distance between second spliced pole 21 and the first flange 11 adjustable, just also make interval 40 adjustable, thereby make crossover sub and annotate the connection between the fat rifle have more extensive practicality and suitability.

Of course, in an alternative embodiment not shown in the drawings, the connection mode between the first connection portion 10 and the second connection portion 20 can be a snap connection mode according to actual needs.

Preferably, as shown in fig. 3 and 6, in an embodiment of the present invention, the second axial through hole 22 includes a first hole section 221 and a second hole section 222 connected to the first hole section 221, wherein the aperture of the second hole section 222 is smaller than that of the first hole section 221, the first internal thread is provided on the inner wall of the second hole section 222, and the first hole section 221 is connected to the valve of the component to be greased.

Further, the aperture of the second hole section 222 is smaller than the aperture of the first hole section 221, the first hole section 221 and the second hole section 222 form a stepped hole, the first internal thread is disposed on the inner wall surface of the second hole section 222, and the second connection column 21 is in threaded connection with the first connection column 12 through the second hole section 222 with the first internal thread, so that the connection between the first connection portion 10 and the second connection portion 20 is realized.

In the above technical solution, the first hole section 221 is connected to the interface 50 of the valve of the component to be greased, so that the second connecting portion 20 is connected to the interface 50 of the valve of the component to be greased, and when the first connecting portion 10 and the second connecting portion 20 are assembled into a whole, the connection between the adapter and the interface 50 of the valve of the component to be greased is realized.

Further, the first hole section 221 has a hole diameter adapted to the outer diameter of the interface 50 of the valve of the component to be greased, so as to realize the connection of the adapter with the interface 50 of the valve of the component to be greased.

The interface on the present valve has the diameter of interface, shape (as shown in fig. 12 to 14), connected mode, inconsistent and make the interface of valve have the problem of multiform, in the technical scheme of the utility model, for the interface 50 of the different size of the valve of treating the notes fat part of adaptation, the aperture of a plurality of crossover sub's first hole section 221 is different to formed the crossover sub group of the first hole section 221 that has different apertures, can select the crossover sub that has the first hole section 221 in corresponding aperture according to the size of the interface 50 of valve, the operating mode is nimble, and application scope is wider.

Alternatively, as shown in fig. 12 and 13, the interface 50 of the valve of the component to be greased has a second external thread 51, correspondingly, a second internal thread matched with the second external thread 51 is provided on the inner wall surface of the second connecting column 21 corresponding to the first hole section 221, the first hole section 221 is in threaded connection with the interface 50 of the valve of the component to be greased, so that the second connecting part 20 is in threaded connection with the interface 50 of the valve of the component to be greased, thereby realizing the connection between the adapter and the interface 50 of the valve of the component to be greased when the first connecting part 10 and the second connecting part 20 are assembled into a whole.

Further, as shown in fig. 3 and 6, in the embodiment of the present invention, the second axial through hole 22 further includes a third hole section 223, the third hole section 223 is disposed on one side of the second hole section 222 away from the first hole section 221, the aperture of the third hole section 223 is greater than that of the second hole section 222, and the aperture of the third hole section 223 is smaller than that of the first hole section 221, the third hole section 223 has a positioning function, when the first connection column 12 is connected with the second connection column 21, the first connection column 12 is positioned to the second hole section 222 more easily, thereby facilitating the connection between the first connection column 12 and the second connection column 21, and making the connection between the first connection column 12 and the second connection column 21 more convenient and faster.

Optionally, the outer diameter of the first connecting column 12 is 8mm, and the aperture of the first axial through hole 13 is 4 mm; the length of the first connection portion 10 in the axial direction is 20 mm; the second connecting portion 20 has a length of 40mm in its axial direction, and the third hole section 223 has a length of 5mm in its axial direction.

Preferably, as shown in fig. 1, 2 and 5, in an embodiment of the present invention, the second connecting portion 20 further includes a first radial through hole 23 opened on the second connecting column 21, the first radial through hole 23 is communicated with the second axial through hole 22, as shown in fig. 7 and 8, and the adapter further includes a pressure release member 30 connected to the first radial through hole 23.

In the technical scheme, the first radial through hole 23 is formed in the side wall of the second connecting column 21 and is communicated with the second axial through hole 22, when the grease injection gun is communicated with the valve of the component to be filled with grease through the adapter and the grease injection operation is completed, the pressure at the adapter can be released through the first radial through hole 23, so that the process of disconnecting the grease injection gun and the valve of the component to be filled with grease is safer and easier to operate; by arranging the pressure release piece 30 at the first radial through hole 23, the first radial through hole 23 can be in an open or closed state, when the pressure release piece 30 is disengaged from the first radial through hole 23 (namely, the pressure release piece 30 is moved out of the first radial through hole 23), the first radial through hole 23 is in an open state, the pressure in the second axial through hole 22 can be effectively released, namely, the pressure at the position of the adapter when the grease gun is communicated with the valve of the part to be greased through the adapter is released, the disassembly among the grease gun, the adapter and the valve of the part to be greased is facilitated, and the process of disconnecting the grease gun and the valve of the part to be greased is safer and easier to operate; after the pressure release piece 30 is in threaded connection with the first radial through hole 23, the first radial through hole 23 is in a closed state, on one hand, the pressure release piece 30 can be prevented from being lost, on the other hand, the sealing performance of the conversion joint can be ensured when the grease injection gun is communicated with a valve of a part to be filled with grease through the conversion joint, the grease injection operation can be favorably completed, and the problem that the pressure of the conversion joint is relieved due to the fact that the first radial through hole 23 is opened, so that lubricating grease/sealing grease is leaked, the injection pressure of the lubricating grease/sealing grease is insufficient, and the working efficiency of the grease injection operation is low can be solved.

Optionally, the first radial through hole 23 is a through hole disposed in the middle of the second connecting column 21, the first radial through hole 23 penetrates through the sidewall of the second connecting column 21 corresponding to the second axial through hole 22, and a third internal thread is disposed on the inner wall surface of the first radial through hole 23.

Preferably, as shown in fig. 7 and 8, in an embodiment of the present invention, the pressure release member 30 includes a body 31 and a nut 32 connected to the body 31, and one end of the body 31 away from the nut 32 is provided with a blind hole.

Further, as shown in fig. 7 and 8, in the embodiment of the present invention, the blind hole is disposed along the axial direction of the body 31, and when the pressure release member 30 is connected to the first radial through hole 23 on the second connecting column 21, the blind hole is communicated with the first radial through hole 23, and then the blind hole is communicated with the second axial through hole 22.

Further, a third internal thread is arranged on the inner wall surface of the first radial through hole 23, correspondingly, a third external thread matched with the third internal thread is arranged on the body part 31, and the body part 31 is in threaded connection with the first radial through hole 23, so that the mounting and dismounting are convenient; the nut 32 is integrally formed with the body 31, and has high structural stability. The nut 32 is disposed at one end of the body 31, the blind hole is disposed at the other end of the body 31 opposite to the nut 32, the nut 32 is used for operating the body 31 to connect the body 31 with the first radial through hole 23, so that the pressure release member 30 is connected to the first radial through hole 23 on the second connecting column 21, and the nut 32 is used as an operating part for connecting the body 31 to the first radial through hole 23, so that the connection of the body 31 with the first radial through hole 23 is convenient and easy to operate.

Preferably, as shown in fig. 7 and 8, in the embodiment of the present invention, the outer wall surface of the body portion 31 is provided with a plurality of second radial through holes 311 communicated with the blind holes.

Specifically, as shown in fig. 8, the outer wall surface of the body portion 31 is provided with two second radial through holes 311, and the two second radial through holes 311 are arranged along the circumferential direction of the body portion 31.

In the above technical solution, the second radial through hole 311 is disposed on the side wall of the body 31, and the second radial through hole 311 penetrates through the side wall of the body 31 and then communicates with the blind hole, and when the pressure release member 30 is connected to the first radial through hole 23, the second radial through hole 311, the blind hole, the first radial through hole 23 and the second axial through hole 22 communicate with each other to form a passage.

When the pressure release member 30 is connected to the first radial through hole 23 and the second radial through hole 311 is completely blocked by the first radial through hole 23, the above-mentioned passage is closed, and when the grease gun is communicated with the valve of the component to be grease-injected through the adapter, the adapter is sealed, which is beneficial to avoiding the problems of leakage of grease/sealing grease and insufficient grease injection pressure, thereby being beneficial to completing the grease injection operation and improving the working efficiency of the grease injection operation.

When the pressure relief is needed at the conversion joint, the pressure relief piece 30 is operated to move the pressure relief piece 30 away from the second connecting column 21, in the process, the second radial through hole 311 is completely shielded by the first radial through hole 23, and becomes partially shielded by the first radial through hole 23, until finally being completely exposed, the passage is gradually changed from the closed state to the open state, the switching joint starts to release pressure through the passage, along with the gradual increase of the displacement of the release part 30 in the direction far away from the second connecting column 21, the part of the second radial through hole 311 shielded by the first radial through hole 23 is gradually reduced, the part of the second radial through hole 311 exposed is gradually increased, the opening degree of the passage is gradually increased, the pressure relief speed of the second radial through hole 311 is gradually increased, the passage is completely opened until the second radial through hole 311 is completely exposed, and the pressure relief speed of the second radial through hole 311 reaches the maximum; the arrangement of the second radial through hole 311 communicated with the blind hole enables the pressure release piece 30 to start releasing the pressure in the second axial through hole 22 without completely disconnecting the pressure release piece from the first radial through hole 23, namely starting pressure release at the crossover joint, and the position of the second radial through hole 311 relative to the first radial through hole 23 can be selected according to actual requirements to control the opening degree of the passage, so that the pressure release speed is adjustable; in the fully opened state of the above-mentioned passage, the pressure release member 30 can still be in the state of being connected with the first radial through hole 23, that is, the connection relationship between the pressure release member 30 and the first radial through hole 23 does not need to be completely released, the pressure release at the crossover joint can be realized, and the pressure release speed can be maximized, the above arrangement can ensure that the pressure release member 30 is connected with the first radial through hole 23, that is, the pressure release member 30 can be always connected to the second connecting column 21, the loss of the pressure release member 30 can be effectively prevented, and the structural integrity of the crossover joint can be favorably ensured.

Of course, in an alternative embodiment not shown in the drawings, a second radial through hole 311 may be provided on the body portion 31 according to actual needs, and the arrangement position of the second radial through hole 311 on the body portion 31 may be selected according to actual needs.

Of course, in an alternative embodiment not shown in the drawings, three or more second radial through holes 311 may be provided on the body portion 31 according to actual needs, and a plurality of second radial through holes 311 may be provided at different positions on the body portion 31 according to actual needs.

Of course, in alternative embodiments not shown in the drawings, screws or bolts may also be used as the pressure relief 30, depending on the actual requirements.

Preferably, as shown in fig. 1, fig. 2, fig. 5 and fig. 13, in an embodiment of the present invention, the adapter further includes a screw part 24 disposed on the outer wall surface of the second connecting column 21.

By the arrangement of the screwing part 24, the second connecting part 20 and the first connecting part 10 can be conveniently assembled into a whole, and the adapter formed by assembling the second connecting part 20 and the first connecting part 10 can be conveniently connected to the interface 50 of the valve of the component to be greased.

Preferably, as shown in fig. 1, 2, 5 and 13, in an embodiment of the present invention, the outer contour of the cross section of the second connecting column 21 is hexagonal, so that the second connecting portion 20 has an outer hexagonal structure, and the outer hexagonal structure forms the screwing portion 24.

Through the arrangement, the outer surface of the second connecting part 20 is arranged to be of the outer hexagonal structure, the outer hexagonal structure serves as the screwing part 24, an additional part does not need to be arranged on the outer wall surface of the second connecting column 21 to serve as the screwing part 24, the structure of the adapter is simplified, the outer hexagonal structure serves as the screwing part 24, and the operation is convenient and rapid.

As shown in fig. 2 and 9-11, the present invention further provides a grease injecting device, which includes a grease injecting gun and a crossover sub connected to the grease injecting gun, wherein the crossover sub is the crossover sub.

In the above technical solution, since the adapter included in the grease injection device is the adapter, the grease injection device also has the advantages of the adapter, and details are not described herein.

As shown in fig. 2 and fig. 9 to fig. 11, in an embodiment of the present invention, the grease injecting device further includes a connector 60 connected to the grease injecting gun, the connector 60 has a slot 61, and the first flange 11 is clamped in the slot 61.

In the above technical solution, the first flange 11 is clamped in the clamping groove 61, so that the first connecting portion 10 is connected with the connector 60 of the grease gun, thereby realizing the connection between the adapter and the grease gun; the first flange 11 and the first connecting column 12 form a T-shaped structure, the connector 60 is further provided with a clamping jaw 64 and a third axial through hole 62 communicated with the grease gun, a cylindrical space with an arc-shaped cross section is formed between the inner wall surface of the clamping jaw 64 and the wall surface of the third axial through hole 62 on the connector 60, the cylindrical space forms a clamping groove 61, the connector 60 is provided with a notch 63 communicated with the clamping groove 61, the first flange 11 can enter the clamping groove 61 through the notch 63 and then be clamped in the clamping groove 61, the first flange 11 can be conveniently clamped in the clamping groove 61 through the notch 63, so that the first connecting part 10 is connected with the connector 60 of the grease gun, the grease gun is reliable and durable in maintenance, the outer wall surface of the first flange 11 is of a cylindrical structure, the inner wall surface of the clamping groove 61 is of an arc-shaped cylindrical structure, the first flange 11 is similar to the clamping groove 61 in structure, and the connection mode of the first connecting part 10 is matched with the, when the maintenance operator injects grease into the valve, the operation is standard, the operation is convenient, fast, safe and reliable, the operation difficulty of the operator is reduced, the working efficiency is improved, and the valve grease injection device has a good popularization and application prospect in the aspect of oil and gas fields.

Further, when the first flange 11 is snapped into the snap groove 61, the catch 64 is in the space 40.

Further, when the first flange 11 is clamped in the clamping groove 61, the first flange 11 can rotate relatively in the clamping groove 61 along the axis of the first flange 11.

Further, a third axial through hole 62 is formed in the bottom wall of the clamping groove 61, when the first flange 11 is clamped in the clamping groove 61, the third axial through hole 62 is communicated with the first axial through hole 13 and the second axial through hole 22, that is, the third axial through hole 62 is communicated with the through hole of the adapter in the axial direction of the adapter, when grease injection operation is performed, grease/sealing grease can enter the first axial through hole 13 and the second axial through hole 22 through the third axial through hole 62, so that a grease injection passage is formed between the grease injection gun and the adapter.

Optionally, the diameter of the first flange 11 is the same as the inner diameter of the clamping groove 61, and through the above arrangement, when the first flange 11 is clamped in the clamping groove 61, the first flange 11 does not move radially in the clamping groove 61, and the third axial through hole 62 is completely communicated with the first axial through hole 13, so that the situation that the third axial through hole 62 is partially communicated with or even not communicated with the first axial through hole 13 due to the radial movement of the first flange 11 in the clamping groove 61 is avoided, smooth completion of grease injection operation is ensured, and the work efficiency of grease injection operation is ensured.

Optionally, the length of the first flange 11 along the axial direction thereof is the same as the length of the clamping groove 61 along the axial direction thereof, so that the first flange 11 can be ensured to be tightly clamped in the clamping groove 61, the end surface of the first flange 11 facing the third axial through hole 62 is tightly contacted with the bottom wall of the clamping groove 61 of the connecting head 60, and the surface of the first flange 11 opposite to the end surface facing the third axial through hole 62 is tightly contacted with the inner wall surface of the clamping jaw 64, and the first flange 11 does not move in the clamping groove 61 along the axial direction, so that the problem of leakage of the grease/sealing grease due to loose connection between the first flange 11 and the bottom wall of the clamping groove 61 of the connecting head 60 can be avoided, the work efficiency of grease injection operation can be ensured, and the waste of the grease/sealing grease can be reduced or avoided.

By screwing the first connecting portion 10 and the second connecting portion 20 in the embodiments of the present invention, the space 40 is made adjustable, optionally, when the length of the first flange 11 along the axial direction thereof is smaller than the length of the cylindrical space along the axial direction thereof, when the installation operation of the first connecting portion 10 and the connector 60 is performed, the end surface of the first flange 11 facing the third axial through hole 62 is brought into close contact with the bottom wall of the slot 61 of the connector 60, and by operating the second connecting portion 20, the axial end surface of the second connecting post 21 facing the first flange 11 is brought into close contact with the outer wall surface of the jaw 64, so that the first flange 11 is tightly attached to the bottom wall of the slot 61 of the connector 60, the first connecting portion 10 is tightly clamped to the connector 60, thereby preventing grease leakage during the grease injection operation, and ensuring the work efficiency of the grease injection operation, and waste of grease/sealing grease can be reduced or avoided.

It should be noted that, no matter the relation that the length of the first flange 11 along the axial direction thereof is the same as or smaller than the length of the clamping groove 61 along the axial direction thereof, it is guaranteed that after the adapter and the grease gun are connected, the end face of the first flange 11 of the first connecting part 10 facing the connector 60 is in butt contact with the bottom wall of the clamping groove 61 of the connector 60, so that the problem of leakage of grease/sealing grease caused by loose connection between the first flange 11 and the connector 60 can be avoided, and the work efficiency of grease injection operation is further guaranteed.

Of course, in the alternative embodiment that the drawing is not shown, can also be according to actual need, use the utility model discloses and the utility model discloses a partly conduct of crossover sub in the embodiment annotates the crossover sub between the valve of fat rifle and the part of waiting to annotate fat, if, annotate the model of fat rifle at present and differ, the connected mode of using also differs, and the connector of some notes fat rifle is threaded, and the connector of some notes fat rifle is the card hanging type, when carrying out the maintenance operation, annotates the fat effect and is not enough to satisfy the requirement of maintenance valve technical quality. The technical scheme of the utility model, when annotating the connector 60 of fat rifle has the external screw thread, the accessible only uses second connecting portion 20 to realize annotating the fat rifle and waiting to annotate being connected between the valve of fat part, specifically, second connecting portion 20 through first hole section 221 with wait to annotate the interface 50 threaded connection of the valve of fat part, second connecting portion 20 through second hole section 222 with annotate connector 60 threaded connection of fat rifle to realize annotating the fat rifle and waiting to annotate being connected between the valve of fat part.

Further, the adapter includes a plurality of second connection portions 20, the first connection portion 10 is selectively connected to one of the plurality of second connection portions 20, and the plurality of second axial through holes 22 of the plurality of second connection posts 21 have different diameters.

Specifically, there are the diameter of interface, shape (as shown in fig. 12 to 14), connected mode, the inconsistent problem that makes the interface of valve have multiple form in the interface on the present valve, in the technical scheme of the utility model, first hole section 221 has the aperture that suits with the external diameter of the interface 50 of the valve of the part of waiting to annotate fat, in order to adapt to the interface 50 of the different sizes of the valve of the part of waiting to annotate fat, the aperture of a plurality of first hole sections 221 of a plurality of second axial through-holes 22 is different to form the crossover sub group of the first hole section 221 that has different apertures, can select the crossover sub of the first hole section 221 that has corresponding aperture according to the size of the interface 50 of valve, in order to realize the crossover sub and wait to annotate the connection of the interface 50 of the valve of fat, the operation mode is nimble.

The following describes the operation of the present invention in detail with reference to fig. 9 to 13:

when the grease gun and the adapter are used on site, the grease gun and the adapter are connected, and after the grease gun and the adapter are used on site, the second connecting column 21 with the first hole section 221 with the hole diameter matched with the outer diameter of the interface 50 of the valve of the part to be greased is selected firstly.

Then, the first connecting column 12 is screwed to the second hole section 222 of the second connecting column 21, so that the first connecting portion 10 and the second connecting portion 20 are assembled into a whole, and then the pressure release member 30 is installed at the first radial through hole 23 of the second connecting column 21, so that the second radial through hole 311 is completely shielded by the first radial through hole 23, so that the assembly of the adapter is completed.

It should be noted that, the installation of the adapter and the valves of the grease filling gun and the component to be filled with grease is not in sequence, and the adapter can be selected to be connected with the grease filling gun firstly or the adapter can be selected to be connected with the valve of the component to be filled with grease firstly according to actual needs; it should be noted that no matter whether select the crossover sub earlier with annotate the fat rifle to be connected or select the crossover sub earlier with the valve of annotating the fat part to be connected, all need guarantee first flange 11 towards the terminal surface of connector 60 and the diapire butt contact of the draw-in groove 61 of connector 60 to can avoid because of being connected the problem of the leakage of the grease that leads to because of inseparable between first flange 11 and the connector 60, and then guarantee to annotate the work efficiency of fat operation.

It should be noted that, the disassembly of the adapter, the grease filling gun and the valve of the component to be filled with grease is not in sequence, and the adapter can be selected to be firstly disconnected from the grease filling gun or to be firstly disconnected from the valve of the component to be filled with grease according to actual needs.

The operation of the present invention will be described below by taking as an example that the adapter is connected to the valve of the member to be greased when mounted, and the adapter is disconnected from the greasing gun when dismounted.

When the valve of the component to be greased needs to be greased, the interface gland 52 on the interface 50 of the valve of the component to be greased is taken down firstly, then the first hole section 221 of the adapter is in threaded connection with the interface 50 of the valve of the component to be greased, then the clamping groove 61 of the connector 60 of the greasing gun is clamped at the first flange 11 of the first connecting part 10 of the adapter, so as to ensure that the end surface of the first flange 11 facing the connector 60 is in butt contact with the bottom wall of the clamping groove 61, and the first connecting post 12 and the second connecting post 21 are screwed tightly to prevent the first flange 11 from coming off from the clamping groove 61, namely, to prevent the adapter from being disconnected from the connector 60 of the grease gun, and then the first hole section 221 is screwed tightly with the connector 50 of the valve of the part to be greased by operating the screwing part 24, so that the whole assembly procedure of the grease gun, the adapter and the valve of the part to be greased is completed. Before the grease injection operation is started, the connection state of the pressure release piece 30 and the second connecting column 21 and the connection state of the first flange 11 and the connecting head 60 are checked, the pressure release piece 30 is firmly installed at the first radial through hole 23 of the second connecting column 21, the second radial through hole 311 is completely shielded, the end face of the first flange 11 facing the connecting head 60 is in butt contact with the bottom wall of the clamping groove 61, and the grease injection operation can be started; grasping a handle of the grease injection gun by hand, pressing down an electric switch, and injecting lubricating grease/sealing grease in the grease injection gun into a valve of a part to be greased; the whole installation process is convenient, fast, safe and stable.

When the valve of the component to be greased is greased and the grease gun and the adapter are required to be disassembled from the valve of the component to be greased, firstly, the adapter is decompressed, the nut 32 of the pressure release member 30 is screwed, a passage formed by the second radial through hole 311, the blind hole, the first radial through hole 23 and the second axial through hole 22 is gradually opened, and the pressure at the adapter is released; after the pressure relief at the adapter is completed, the adapter is detached from the grease gun and the valve of the part to be greased; firstly, taking down the connector 60 of the grease injection gun from the first flange 11 clamped in the clamping groove 61, and releasing the connection between the adapter and the grease injection gun; then the screw-on part 24 is screwed to remove the adapter from the interface 50 of the valve of the component to be greased; at this moment, the connection relation among the grease injection gun, the adapter and the valve of the part to be greased is released, and the disassembly work of the grease injection gun and the adapter from the valve of the part to be greased is completed; the whole disassembly process is safe, stable, reliable and quick.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the technical proposal of the utility model relates to a device which can be widely applied to oil and gas field production systems, the adapter used in the grease injection operation process for maintaining the valves on each process flow device provides an adapter which is matched with the connector of a grease injection gun and can be connected with the interface of the valve of a component to be filled with grease, in the process of grease injection operation, the connection operation of the adapter and the grease injection gun is standard, so that when maintenance operators perform grease injection operation on the valve, the operation degree of difficulty that has reduced operating personnel has improved work efficiency, and equipment process convenient and fast annotates fat process safety, steady, reliable, has improved the work efficiency of annotating the fat operation, has solved the problem that the work efficiency of annotating the fat operation that leads to because of the interface of valve and the connector of annotating the fat rifle are unmatched is low, and the practicality is strong, has better popularization application prospect in the aspect of the oil gas field.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. An adapter, comprising:

a first connection portion (10) including a first connection post (12) and a first flange (11) connected to the first connection post (12);

a second connecting portion (20) detachably connected to the first connecting portion (10);

wherein, follow the axis direction of first flange (11), first connecting portion (10) still includes and link up first flange (11) with first axial through-hole (13) of first spliced pole (12), second connecting portion (20) include second spliced pole (21) and set up second axial through-hole (22) on second spliced pole (21), second axial through-hole (22) with first axial through-hole (13) intercommunication, work as second connecting portion (20) with first connecting portion (10) equipment back as an organic whole, the orientation of second spliced pole (21) the axial terminal surface of first flange (11) with the orientation of first flange (11) have interval (40) between the terminal surface of second connecting portion (20).

2. The adapter according to claim 1, characterized in that the first connecting post (12) has a first external thread (121) on its outer circumferential surface, and the second axial through hole (22) has a first internal thread on its inner wall surface that mates with the first external thread (121) to threadedly connect the first connecting post (12) to the second connecting post (21).

3. Adapter according to claim 2, characterized in that said second axial through hole (22) comprises a first hole section (221) and a second hole section (222) connected to said first hole section (221), wherein the second hole section (222) has a smaller diameter than the first hole section (221), said first internal thread opens on the inner wall of said second hole section (222), said first hole section (221) being connected to the valve of the component to be greased.

4. The adapter according to any one of claims 1 to 3, characterized in that said second connection portion (20) further comprises a first radial through hole (23) opening on said second connection column (21), said first radial through hole (23) communicating with said second axial through hole (22), said adapter further comprising a release member (30) connected with said first radial through hole (23).

5. Transition joint according to claim 4, characterized in that the release element (30) comprises a body part (31) and a nut (32) connected to the body part (31), the body part (31) being provided with a blind hole at the end remote from the nut (32).

6. Adapter according to claim 5, characterized in that the outer wall of said body (31) is provided with one or more second radial through holes (311) communicating with said blind holes.

7. The adapter according to any one of claims 1 to 3, characterized in that it further comprises a screw (24) provided on the outer wall surface of said second connecting column (21).

8. The adapter according to claim 7, characterized in that the outer contour of the cross section of the second connecting post (21) is hexagonal, so that the second connecting portion (20) has a hexagonal outer configuration, which forms the screw portion (24).

9. A grease filling device comprising a grease filling gun and an adapter connected to the grease filling gun, wherein the adapter is the adapter of any one of claims 1 to 8.

10. Grease injection device according to claim 9, characterized in that it further comprises a connector (60) connected to the grease gun, the connector (60) having a slot (61), the first flange (11) being snapped into the slot (61).

11. Grease injection device according to claim 9, characterized in that the adapter comprises a plurality of second connections (20), the first connection (10) being selectively connectable to one of the plurality of second connections (20), the second axial through holes (22) of the second connection studs (21) having different diameters.

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