High-temperature-resistant large-drift multiple-activation plugging tool

Abstract

The application relates to the technical field of plugging tools, and discloses a high-temperature-resistant large-diameter multi-activation plugging tool, which comprises an upper outer cylinder, a lower outer cylinder, a limiting sleeve and a rotating sleeve, the lower end of the upper outer cylinder is connected with the lower outer cylinder through external threads, the upper outer cylinder is internally provided with the rotating sleeve, the upper end and the lower end of the rotating sleeve are respectively connected with upper and lower elastic claw sleeves through internal threads, the upper side of the rotating sleeve is provided with the limiting sleeve which is connected with the inner side of the upper outer cylinder through external threads, at least one nozzle capable of communicating with the inside is arranged on the upper outer cylinder, and the rotating sleeve is provided with circulating holes which are internally and externally connected with the nozzles in correspondence with the number of the nozzles. The application has reasonable and compact structure and is convenient to use, the function ball is put into the application to store pressure, the index screw is matched with the rotating sleeve to make the rotating sleeve rotate to connect the nozzles and the circulating holes to perform plugging operation, and the spiral guide ball basket is arranged to throw the ball downward to drive the lower tool under the premise of not influencing the plugging function.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plugging tools, and is a high-temperature-resistant large-diameter multi-activation plugging tool. BACKGROUND

[0002] The plugging tool is a drill-in plugging bypass tool that can be controlled on the ground and can realize multiple forward and lateral (bypass) alternating circulation. The commonly used plugging tool is a multi-switch circulation bypass tool. The multi-switch circulation bypass tool can selectively open and close the forward and lateral circulation channels multiple times in complex well conditions, can perform special operations such as high-concentration, large-particle plugging material and cement squeezing plugging construction without drilling, shortens the drilling cycle, reduces the well control risk, realizes the conversion between the forward circulation and the lateral circulation of the drilling fluid, reduces the construction cost, is not limited by the downhole tools, instruments and drill bit water holes, can realize large-displacement well flushing, effectively protects the downhole instruments and power drilling tools, can realize multiple downhole switching operations, reduces the construction cost, and at the same time can reduce or eliminate the cuttings bed in the directional well and horizontal well section (timely remove metal burrs in the windowing and milling operations). The multi-switch circulation bypass tool has a wide application prospect. The commonly used multi-switch circulation bypass tool mainly includes the PBL tool of the DSI company, the WELL COMMANDER of Schlumberger, and the XP circulation valve of the BAKER company. The PBL tool realizes the conversion between the normal drilling, drill-in plugging and large-displacement well flushing by using different functional balls in combination, has a simple and stable tool structure, and is reliable, but the tool has a limited number of activations and the internal part can only pass through the drilling fluid after activation. The WELL COMMANDER tool realizes the conversion between different functions of the tool by using functional balls and isolation balls with similar sizes, the internal part of the tool can still pass through the small-size ball after activation, the tool has powerful functions and a delicate structure, but has a limited number of activations, a relatively complex structure and high operation precision requirements. The XP circulation valve of the BAKE company realizes the conversion between different functions by using three different size balls in combination with multiple ball seat rings, and has poor tool stability, high processing difficulty and a limited number of activations. With the continuous development of deep wells, ultra-deep wells and complex process wells, the drill-in plugging process puts forward the requirements of high-temperature resistance, larger diameter, more activations, simpler operation and higher stability for the plugging tool. SUMMARY

[0003] The present application provides a high-temperature-resistant large-diameter multi-activation plugging tool, which overcomes the shortcomings of the prior art and effectively solves the problem of the existing plugging tool that has a limited number of activations, a complex structure and high operation precision requirements.

[0004] The technical scheme of the present application is realized by the following measures: a high-temperature-resistant large-drift multiple-activation plugging tool, comprising an upper outer cylinder, a lower outer cylinder, a limiting sleeve, a rotating sleeve, the lower outer cylinder is connected to the lower end of the upper outer cylinder in a threaded manner, the rotating sleeve is arranged in the upper outer cylinder, the upper end and the lower end of the rotating sleeve are connected to the upper elastic claw sleeve and the lower elastic claw sleeve in a threaded manner, respectively, the upper side of the rotating sleeve is provided with the limiting sleeve which is connected to the inner side of the upper outer cylinder in a threaded manner, at least one nozzle capable of communicating with the inside of the upper outer cylinder is arranged on the upper outer cylinder, the rotating sleeve is provided with a plurality of circulation holes which are connected to the nozzles in an inner-outer penetrating manner, the rotating sleeve is provided with a rotating groove in the middle part, the upper outer cylinder is provided with an index screw whose inner end is located in the rotating groove, the first step is arranged on the inner side of the lower end of the upper outer cylinder, the compression spring is arranged between the lower end of the rotating sleeve and the upper side of the first step, the spiral guide ball basket capable of limiting the falling of functional balls of different sizes is arranged in the lower outer cylinder, and the second step is arranged on the inner side of the lower end of the lower outer cylinder.

[0005] The following is a further optimization or / and improvement of the above-mentioned technical scheme of the application:

[0006] The rotating groove can include an upper rotating groove and a lower rotating groove, eight identical upper rotating grooves are uniformly distributed on the rotating sleeve along the circumference, the lower rotating groove is arranged on the rotating sleeve corresponding to the position below the upper rotating groove, and the lower rotating groove includes two groups of sliding grooves which are uniformly distributed along the circumference of the rotating sleeve.

[0007] Four deceleration steps which are cross-distributed are arranged on the inner side of the rotating sleeve in a spaced manner.

[0008] The deceleration steps are semicircular rings.

[0009] The spiral guide ball basket is a long cylindrical shape with a through channel in the middle part, the spiral guide grooves are arranged on the outer side of the spiral guide ball basket from top to bottom, and the spiral guide grooves are communicated with the through channel.

[0010] The upper outer cylinder is provided with a first check ring corresponding to the position of the upper side of the limiting sleeve, and the rotating sleeve is provided with a second check ring corresponding to the position of the upper side of the upper elastic claw sleeve.

[0011] O-shaped sealing rings are arranged between the upper side and the lower side of the limiting sleeve and the inner side of the upper outer cylinder, between the lower side of the upper elastic claw sleeve and the inner side of the rotating sleeve, between the upper outer cylinder and the rotating sleeve corresponding to the positions above and below the nozzles, between the index screw and the upper outer cylinder, and between the upper side of the lower elastic claw sleeve and the rotating sleeve.

[0012] The upper elastic claw sleeve and the lower elastic claw sleeve are both made of metal.

[0013] The application has reasonable and compact structure, is convenient to use, the function ball is put in to store pressure, the index screw is matched with the rotating sliding sleeve, the rotating sliding sleeve is rotated to communicate the nozzle and the circulating hole to carry out the plugging operation, the spiral guide ball basket is arranged to drive the lower tool under the premise of not affecting the plugging function. BRIEF DESCRIPTION OF DRAWINGS

[0014] BRIEF DESCRIPTION OF DRAWINGS Figure 1 It is a front view half-section structure schematic diagram of the embodiment of the application.

[0015] BRIEF DESCRIPTION OF DRAWINGS Figure 2 It is an enlarged section structure schematic diagram of the upper half part in the Figure 1 .

[0016] BRIEF DESCRIPTION OF DRAWINGS Figure 3 It is a rotating sliding sleeve rotating slot plane development structure schematic diagram in the Figure 1 .

[0017] The codes in the drawings are as follows: 1 is an upper outer cylinder, 2 is a lower outer cylinder, 3 is a limiting sleeve, 4 is a rotating sliding sleeve, 5 is an upper elastic claw sleeve, 6 is a lower elastic claw sleeve, 7 is an index screw, 8 is a first step, 9 is a compression spring, 10 is a spiral guide ball basket, 11 is a second step, 12 is an upper rotating slot, 13 is a long slot, 14 is a short slot, 15 is a deceleration step, 16 is a spiral guide slot, 17 is a first stop ring, 18 is a second stop ring, 19 is an O-shaped sealing ring, 20 is a U-shaped sealing ring, 21 is a function ball, 22 is a nozzle, and 23 is a circulating hole. DETAILED DESCRIPTION

[0018] The application is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical scheme of the application and the actual situation.

[0019] In the application, the relative position relationship of each component is described according to the layout mode of the drawings in the description, for example, the position relationship of front, back, upper, lower, left and right is determined according to the layout direction of the drawings in the description. Figure 1

[0020] The application will be further described below in combination with the embodiments and the drawings:

[0021] Embodiment 1: as shown in the Figure 1 , 2 ​The high-temperature-resistant large-drift multiple-activation plugging tool shown in FIGS. 1-3 comprises an upper outer cylinder 1, a lower outer cylinder 2, a limiting sleeve 3, and a rotating sliding sleeve 4. The lower outer cylinder 2 is threadedly connected to the lower end of the outer side of the upper outer cylinder 1. The rotating sliding sleeve 4 is arranged in the upper outer cylinder 1. The upper elastic claw sleeve 5 and the lower elastic claw sleeve 6 are threadedly connected to the inner side of the upper end and the inner side of the lower end of the rotating sliding sleeve 4, respectively. The limiting sleeve 3 is threadedly connected to the inner side of the upper outer cylinder 1. At least one nozzle 22 capable of communicating with the inside is arranged on the upper outer cylinder 1. The rotating sliding sleeve 4 is provided with a rotating groove and a plurality of circulating holes 23 corresponding to the number of nozzles 22. The index screw 7 is arranged in the rotating groove. The first step 8 is arranged on the inner side of the lower end of the upper outer cylinder 1. The compression spring 9 is arranged between the lower end of the rotating sliding sleeve 4 and the upper side of the first step 8. The spiral guide ball basket 10 capable of limiting the falling of the function balls 21 of different sizes is arranged in the lower outer cylinder 2. The second step 11 is arranged on the inner side of the lower end of the lower outer cylinder 2.

[0022] According to the requirements, the lower end of the upper elastic claw sleeve 5 and the lower end of the lower elastic claw sleeve 6 are provided with 10 axial linear cutting grooves. After adjusting the size and ball size parameters of the upper elastic claw sleeve 5 and the lower elastic claw sleeve 6, the knockdown pressure of the function balls 21 is 20 MPa for the upper elastic claw sleeve 5 and 15 MPa for the lower elastic claw sleeve 6. The ball seat is arranged in the upper elastic claw sleeve 5 and the lower elastic claw sleeve 6. When the function balls 21 are seated in the upper elastic claw sleeve 5, the ball-ball seat cannot form a stable pressure seal. However, with the increase of the displacement, the circulating pump pressure will continue to rise. When the pressure rises to a certain value, the function balls 21 can be squeezed through. After the function balls 21 are squeezed through, the upper elastic claw sleeve 5 returns to its original state. The function balls 21 can be squeezed through the ball seat by adjusting the initial interference amount of the function balls 21 and the ball seat, the length and width of the linear cutting groove.

[0023] Initially, the nozzle 22 of the upper outer cylinder 1 and the circulation hole 23 of the indexing sleeve 4 are misaligned axially and circumferentially. Functional ball 21 is inserted and pumped to the upper elastic claw sleeve 5, pressurizing the slide sleeve 4 and pushing it downwards against the restoring force of the compression spring 9. Pressurization continues until 20 MPa is applied, knocking down functional ball 21, which falls onto the lower elastic claw sleeve 6. Pumping stops, and pressure is released. At this point, functional ball 21 becomes an isolation ball, preventing the plugging slurry from contaminating the lower part of the drill bit. The indexing sleeve 4 rotates upwards under the action of the compression spring 9, aligning the circulation hole 23 of the indexing sleeve 4 with the nozzle 22 of the upper outer cylinder 1, establishing a circulation channel for plugging operations. After the plugging operation is completed, a second functional ball 21 is inserted, and pressurization causes the indexing sleeve 4 to rotate, thus aligning the nozzle 22 of the upper outer cylinder 1 with the indexing sleeve 5. When the circulation hole 23 of sleeve 4 is misaligned in the axial and circumferential directions, the circulation channel is closed, and the pressure is continued to reach 20MPa, knocking off the first functional ball 21. The second functional ball 21 sits on the lower elastic claw sleeve 6, and the first functional ball 21 falls onto the second step 11 along the spiral guide ball basket 10. The pressure is continued to reach 15MPa, knocking off the second functional ball 21. The second functional ball 21 falls into the lower spiral guide ball basket 10 and onto the second step 11, and the tool returns to its initial state. This invention achieves control over different working states of the tool through a functional ball 21 of a unique size, which is not easy to misoperate. The functional ball 21 is reusable, has low operating costs, and can flexibly and efficiently handle complex accidents, providing reliable technical support for deep wells, ultra-deep wells, and complex process wells.

[0024] Smaller spheres can enter the tool below via the spiral guide basket 10. Different sized spheres and ball seats can be used to connect multiple tools in the drill string, enabling selective activation and deactivation of the tools.

[0025] The above-mentioned high-temperature resistant, large-diameter, multiple-activation leak-sealing tool can be further optimized and / or improved according to actual needs:

[0026] Example 2: As shown in the attached document Figure 1 , 2 As shown in Figure 3, the indexing groove includes an upper indexing groove 12 and a lower indexing groove. Eight identical upper indexing grooves 12 are evenly distributed along the circumference of the indexing sleeve 4. A lower indexing groove is provided on the indexing sleeve 4 corresponding to the position below the upper indexing groove 12. The lower indexing groove includes two sets of grooves evenly distributed along the circumference of the indexing sleeve 4. Each set of grooves includes three adjacent long grooves 13 and one short groove 14. The tooth tip formed between every two upper indexing grooves 12 corresponds to the position of the lower indexing groove.

[0027] The position change of index screw 7 during tool state transition:

[0028] Position a: Initial state, the circulation hole 23 of the main body and the circulation hole 23 of the indexing sleeve 4 are misaligned in the axial and circumferential directions;

[0029] Position b: Throw the functional ball 21, pump it to the upper elastic claw sleeve 5, pressurize it, and push the rotating sliding sleeve 4 to overcome the restoring force of the compression spring 9 and rotate downward to the bottom;

[0030] Position c: Continue pressurizing to 20MPa to knock down the functional ball 21, which sits on the lower elastic claw sleeve 6 (to prevent the functional ball 21 from continuously passing through the upper and lower elastic claw sleeves 6). Stop the pump and release the pressure. At this time, the functional ball 21 becomes an isolation ball, which can prevent the plugging slurry from contaminating the lower part of the drill bit. The indexing sleeve 4 rotates upward under the action of the compression spring 9. The circulation hole 23 of the indexing sleeve 4 is aligned with the circulation hole 23 of the main body to establish a circulation channel for plugging operation.

[0031] Position d: After the leak sealing operation is completed, the second functional ball 21 is inserted and pumped to the upper elastic claw sleeve 5. The pressure is held up (the pressure value is less than the knocking pressure of the functional ball 21), which pushes the indexing sleeve 4 to overcome the restoring force of the compression spring 9 and index down to the bottom.

[0032] Position e: Pump stops, compression spring 9 pushes indexing sleeve 4 to rotate upward, indexing sleeve 4 circulation hole 23 is out of position from body circulation hole 23, circulation channel is closed;

[0033] Position f: Pressurize and push the indexing sleeve 4 downwards to the bottom;

[0034] Position g: Continue to pressurize to 20MPa, knock down the first functional ball 21, the first functional ball 21 falls into the lower spiral guide ball basket 10, under the limitation of the size of the center hole of the spiral guide ball basket 10 and the guidance of the spiral groove, it slides down to the bottom along the outside of the spiral groove, releases pressure, and the compression spring 9 pushes the indexing sleeve 4 to rotate upward. The second functional ball 21 is decelerated by the deceleration step 15 and sits on the lower elastic claw sleeve 6.

[0035] Position h: Pressurize, compress spring 9 pushes the indexing sleeve 4 to index down to the bottom, continue pressurize to 15MPa, knock down the second functional ball 21, functional ball 21 falls into the lower spiral guide ball basket 10, under the limitation of the size of the center hole of the spiral guide ball basket 10 and the guidance of the spiral groove, slide down to the bottom along the outside of the spiral groove;

[0036] Position i: The compression spring 9 pushes the indexing sleeve 4 to rotate upward, and the tool returns to its initial state.

[0037] Example 3: As shown in the attached document Figure 1 , 2 As shown, the inner side of the indexing sleeve 4 is provided with four intersecting deceleration steps 15. After the functional ball 21 is decelerated by the deceleration steps 15, it sits smoothly on the lower elastic claw sleeve 6, preventing the functional ball 21 from passing through the upper and lower elastic claw sleeves 6 continuously.

[0038] Example 4: As shown in the appendix Figure 1 , 2As shown, the deceleration step 15 is a semicircular ring. It can ensure that the functional ball 21 passes through each deceleration step 15.

[0039] Embodiment 5: as shown in the accompanying Figure 1 As shown, the spiral guide ball basket 10 is a long cylinder with a through channel in the middle. The outer side of the spiral guide ball basket 10 is provided with a spiral guide groove 16 from top to bottom, and the spiral guide groove 16 is in communication with the through channel.

[0040] After the functional ball 21 enters the inside of the lower outer cylinder 2, it cannot enter the inside of the spiral guide ball basket 10 due to size limitation, and under the action of fluid, it enters the spiral groove of the spiral guide ball basket 10 and moves downward along the spiral line to the bottom and falls on the second step 11; while the smaller size ball driving other tools enters the inside of the ball basket body through the upper and lower elastic claw sleeves 6, it can directly pass through the axial channel of the spiral guide ball basket 10 to drive the lower tool, such as the small size ball entering the external spiral channel, re-entering the axial channel through the gap between the spiral channel and the internal axial channel, and finally passing through the lower outer cylinder 2 to drive the lower tool.

[0041] Embodiment 6: as shown in the accompanying Figure 1 、 2 As shown, the first stop ring 17 is arranged in the upper outer cylinder 1 corresponding to the upper side position of the limiting sleeve 3, and the second stop ring 18 is arranged in the rotating sleeve 4 corresponding to the upper side position of the upper elastic claw sleeve 5. The first stop ring 17 and the second stop ring 18 are arranged to prevent loosening.

[0042] Embodiment 7: as shown in the accompanying Figure 1 、 2 As shown, the O-shaped sealing ring 19 is arranged between the upper side and the lower side of the limiting sleeve 3 and the inner side of the upper outer cylinder 1, the O-shaped sealing ring 19 is arranged between the lower side of the upper elastic claw sleeve 5 and the inner side of the rotating sleeve 4, the U-shaped sealing ring 20 is arranged between the upper outer cylinder 1 and the rotating sleeve 4 corresponding to the position above and below the nozzle 22, the O-shaped sealing ring 19 is arranged between the index screw 7 and the upper outer cylinder 1, and the O-shaped sealing ring 19 is arranged between the upper side of the lower elastic claw sleeve 6 and the rotating sleeve 4.

[0043] The sealing ring is arranged to protect the connecting thread from being polluted by drilling fluid, and is easy to disassemble. The material of the U-shaped sealing ring 20 can be selected according to the specific working conditions. In high temperature environment, the material is perfluorinated rubber.

[0044] Embodiment 8: as shown in the accompanying Figure 1 、 2 As shown, the upper elastic claw sleeve 5 and the lower elastic claw sleeve 6 are both made of metal material. The functional ball 21 is made of chromium alloy steel, which meets the demand of super high temperature operation.

[0045] The above technical features constitute the embodiments of the present application, which have strong adaptability and implementation effect. According to actual needs, unnecessary technical features can be added or reduced to meet the needs of different situations.

Claims

1. A high-temperature-resistant large-drift multiple-activation leak-plugging tool, characterized in that The utility model provides a kind of multi-functional ball pump, including upper outer tube, lower outer tube, limiting sleeve, positioner sliding sleeve, lower outer tube is connected with the lower end outside of upper outer tube by screw thread, positioner sliding sleeve is equipped in upper outer tube, upper elastic claw sleeve and lower elastic claw sleeve are respectively connected with the inside of upper end and lower end of positioner sliding sleeve by screw thread, limiting sleeve is equipped in the upper side of positioner sliding sleeve, and limiting sleeve is connected together with the inside of upper outer tube by screw thread outside, at least one nozzle capable of being communicated inside is equipped on upper outer tube, circulation hole that is communicated inside and outside is equipped on positioner sliding sleeve corresponding with the number of nozzle, positioner groove is equipped in positioner sliding sleeve middle part, index screw is equipped on upper outer tube, and the inner end of index screw is located in positioner groove, first step is equipped on the inside of lower end of upper outer tube, compression spring is equipped between the lower end of positioner sliding sleeve and the upper side of first step, spiral guide ball basket capable of limiting different sizes function ball from falling is equipped in lower outer tube, second step is equipped on the inside of lower end of lower outer tube. Positioner groove includes upper positioner groove and lower positioner groove, eight identical upper positioner grooves are evenly distributed on positioner sliding sleeve, lower positioner groove is equipped on positioner sliding sleeve corresponding with the position of upper positioner groove below, and lower positioner groove includes two groups of sliding grooves evenly distributed along the circumference of positioner sliding sleeve, each group of sliding grooves includes three adjacent long grooves and a short groove, and the tooth tip formed between every two upper positioner grooves corresponds with the position of lower positioner groove. There is an axial linear cutting groove on the lower end of upper elastic claw sleeve and lower elastic claw sleeve, the size of upper elastic claw sleeve and lower elastic claw sleeve and the size of ball are adjusted, the function ball knockdown pressure is that the knockdown pressure of upper elastic claw sleeve is greater than that of lower elastic claw sleeve, and there is ball seat in upper elastic claw sleeve and lower elastic claw sleeve; when pumping function ball seat inside upper elastic claw sleeve, ball-ball seat cannot form stable pressure seal, but with the increase of displacement, circulating pump pressure will continue to rise, and when it rises to a certain value, function ball can be extruded, after function ball is extruded, upper elastic claw sleeve returns to original state. After function ball enters the inside of lower outer tube, it cannot enter the inside of spiral guide ball basket, and under the action of fluid, it enters spiral groove of spiral guide ball basket; after smaller size ball driven by other tools enters the inside of ball basket body through upper elastic claw sleeve and lower elastic claw sleeve, it directly drives lower tool through axial channel of spiral guide ball basket.

2. The high-temperature resistant large-drift multiple-activation plug tool of claim 1, wherein Four cross-distributed deceleration steps are arranged on the inside of positioner sliding sleeve.

3. The high-temperature resistant large-drift multiple-activation plug tool of claim 2, wherein Deceleration step is semicircular ring.

4. The high-temperature resistant large-drift multiple-activation plug tool according to claim 1 or 2 or 3, characterized in that Spiral guide ball basket is long cylinder with through channel in middle part, spiral guide ball basket outside is equipped with spiral guide groove from top to bottom, and spiral guide groove is communicated with through channel.

5. The high-temperature resistant large-drift multiple-activation plug tool according to any one of claims 1-3, wherein First stop ring is equipped in upper outer tube corresponding with the position of limiting sleeve upper side, and second stop ring is equipped in positioner sliding sleeve corresponding with the position of upper elastic claw sleeve upper side.

6. The high-temperature resistant large-drift multiple-activation plug tool of claim 4, wherein First stop ring is equipped in upper outer tube corresponding with the position of limiting sleeve upper side, and second stop ring is equipped in positioner sliding sleeve corresponding with the position of upper elastic claw sleeve upper side.

7. The high-temperature resistant large-drift multiple-activation plug tool according to any one of claims 1-6, wherein O-shaped sealing ring is arranged between the inside of upper outer tube and the outside of limiting sleeve upper part and lower part, O-shaped sealing ring is arranged between the inside of positioner sliding sleeve and the outside of upper elastic claw sleeve lower part, U-shaped sealing ring is arranged between upper outer tube and positioner sliding sleeve corresponding with the position above and below nozzle, O-shaped sealing ring is arranged between index screw and upper outer tube, and O-shaped sealing ring is arranged between the inside of positioner sliding sleeve and the outside of lower elastic claw sleeve upper part. Upper elastic claw sleeve and lower elastic claw sleeve are metal materials.

8. The high-temperature resistant large-drift multiple-activation plug tool of claim 4, wherein O-shaped sealing rings are arranged between the upper outer side and the lower outer side of the limiting sleeve and the inner side of the upper outer cylinder, O-shaped sealing rings are arranged between the lower outer side of the upper elastic claw sleeve and the inner side of the rotating sleeve, U-shaped sealing rings are arranged between the upper outer cylinder and the rotating sleeve corresponding to the position above and below the nozzle, O-shaped sealing rings are arranged between the index screw and the upper outer cylinder, and O-shaped sealing rings are arranged between the upper outer side of the lower elastic claw sleeve and the rotating sleeve.

9. The high-temperature resistant large-drift multiple-activation plug tool of claim 5, wherein O-shaped sealing rings are arranged between the upper outer side and the lower outer side of the limiting sleeve and the inner side of the upper outer cylinder, O-shaped sealing rings are arranged between the lower outer side of the upper elastic claw sleeve and the inner side of the rotating sleeve, U-shaped sealing rings are arranged between the upper outer cylinder and the rotating sleeve corresponding to the position above and below the nozzle, O-shaped sealing rings are arranged between the index screw and the upper outer cylinder, and O-shaped sealing rings are arranged between the upper outer side of the lower elastic claw sleeve and the rotating sleeve. O-shaped sealing rings are arranged between the upper outer side and the lower outer side of the limiting sleeve and the inner side of the upper outer cylinder, O-shaped sealing rings are arranged between the lower outer side of the upper elastic claw sleeve and the inner side of the rotating sleeve, U-shaped sealing rings are arranged between the upper outer cylinder and the rotating sleeve corresponding to the position above and below the nozzle, O-shaped sealing rings are arranged between the index screw and the upper outer cylinder, and O-shaped sealing rings are arranged between the upper outer side of the lower elastic claw sleeve and the rotating sleeve.

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