A glass blind panel auxiliary opening device

Abstract

The present invention provides a device for assisting the opening of a glass blind panel. The device includes an outer sleeve, an inner sleeve, a piston, an elastic member, and a rotary actuator. The outer sleeve includes an axially extending main body, a first end provided with a conical head, a cavity provided within the main body, and a milling portion. The inner wall of the main body is provided with a first step portion. The milling portion is disposed on the outer wall of the main body. The inner sleeve is in close contact with the inner wall of the outer sleeve. The inner sleeve includes an axially extending central cavity, a second step portion formed on the outer wall of the inner sleeve, and a fluid inlet. The second step portion cooperates with the first step portion to form a compression chamber. The fluid inlet is located near the first step portion and is connected to the compression chamber. The piston is disposed in the compression chamber and is near the first step portion. The elastic member is disposed in the compression chamber and is located between the piston and the second step portion. The rotary actuator is connected to the second end of the outer sleeve and selectively drives the outer sleeve to rotate. The device can improve the safety of the glass blind panel opening operation.

Description

Technical Field

[0001] The present invention relates to the field of oilfield equipment, and more particularly to a glass blind plate auxiliary opening device. Background Art

[0002] Floating casing running technology is a commonly used casing running technique in oil and gas exploration. By adding a floating collar to the casing string and enclosing air or low-density drilling fluid in the casing between the floating collar and the casing shoe, this section of the casing string generates a certain amount of buoyancy within the wellbore, thereby reducing friction between the casing and the wellbore wall during running, achieving the purpose of safe casing running.

[0003] Blind-plate floating couplings are a common method for floating casing running. Glass blind plates are widely used in oil and gas fields due to their ease of operation and large diameter. However, the stability of the glass plate against breakage is often affected by the glass material and processing technology. The problem of glass blind plates failing to open occasionally occurs during field operations. When the glass blind plate fails to open, a common solution is to drill out the glass plate with a drill bit. However, this method of opening the glass blind plate does not completely remove glass debris from the edge. Sharp glass fragments can scratch the rubber plug, which risks damaging the casing.

[0004] Therefore, it is necessary to design a glass blind plate auxiliary opening device that can safely open the glass blind plate without causing damage to the casing. Summary of the Invention

[0005] The object of the present invention is to provide a glass blind panel auxiliary opening device to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

[0007] According to one aspect of the present invention, a glass blind panel auxiliary opening device is provided, the device comprising:

[0008] The outer shell includes:

[0009] an axially extending body having a first end provided with a tapered head;

[0010] A cavity is provided inside the main body, the cavity has an opening at a second end opposite to the first end, and the cavity forms a first step portion on the inner wall of the main body;

[0011] A milling part, which is arranged on the outer wall of the main body;

[0012] The inner sleeve body has an outer wall that is tightly attached to the inner wall of the outer sleeve body. The inner sleeve body includes:

[0013] a central cavity extending in the axial direction;

[0014] a second step portion formed on the outer wall of the inner sleeve, the second step portion being closer to the second end than the first step portion, and the second step portion and the first step portion cooperating to form a compression chamber;

[0015] a fluid inlet, the fluid inlet being located near the first step portion and communicating with the compression chamber;

[0016] a piston disposed in the compression chamber and close to the first step;

[0017] an elastic member disposed in the compression chamber and between the piston and the second step;

[0018] The rotary drive is connected to at least one of the outer casing or the inner casing and selectively drives the outer casing to rotate.

[0019] According to one embodiment of the present invention, the cavity of the outer sleeve includes a first section, a second section and a third section with different diameters and arranged in sequence along the axial direction. The first section extends to the second end and has the largest diameter. The diameter of the second section is smaller than that of the first section, thereby forming a first step portion. The diameter of the third section is smaller than that of the second section, thereby forming a third step portion. One end of the inner sleeve is supported on the third step portion.

[0020] According to one embodiment of the present invention, the device further comprises a ball seat, which is disposed in the central cavity of the inner sleeve body and is located between the first step portion and the third step portion in the axial direction.

[0021] According to one embodiment of the present invention, the outer shell further comprises a discharge channel, the inner end of the discharge channel is connected to the bottom area of ​​the cavity, and the outer end of the discharge channel extends through the outer wall of the main body and is closer to the first end than the inner end.

[0022] According to one embodiment of the present invention, the ball seat is mounted on the inner sleeve body using shear pins.

[0023] According to one embodiment of the present invention, a rotary driver includes a turbine assembly and a magnetic sleeve assembly.

[0024] According to one embodiment of the present invention, the turbine assembly includes a turbine stator and a turbine rotor, the magnetic sleeve assembly includes an inner magnetic sleeve and an outer magnetic sleeve, the output shaft of the turbine rotor is fixedly connected to the inner magnetic sleeve, and the outer magnetic sleeve is arranged on the periphery of the inner magnetic sleeve.

[0025] According to one embodiment of the present invention, the turbine blades of the turbine stator and the turbine blades of the turbine rotor have the same angle but opposite rotation directions, and the magnets in the inner magnetic sleeve and the magnets in the outer magnetic sleeve are magnetic blocks of different polarity.

[0026] According to one embodiment of the present invention, the device further comprises a connector, one end of which is fixedly connected to the outer magnetic sleeve, and the other end of which is fixedly connected to the second end of the outer sleeve or the outer end of the inner sleeve.

[0027] According to one embodiment of the present invention, the device further includes an isolation sleeve, which includes an isolation portion arranged between the inner magnetic sleeve and the outer magnetic sleeve, the isolation portion is provided with an annular groove, the outer magnetic sleeve is provided with another annular groove matching the annular groove, the outer magnetic sleeve also has a ball channel connected to the annular groove and extending radially along the outer magnetic sleeve, a ball is installed in the annular groove, and a limit member is installed in the ball channel to prevent the ball from escaping from the annular groove.

[0028] Due to the adoption of the above technical solution, the present invention has at least the following beneficial effects:

[0029] The axial impact force generated by the cone head on the glass plate is achieved through the reset mechanism composed of a piston and an elastic member. The impact is mainly concentrated at the position of the cone head without causing impact and damage to the surrounding sleeves.

[0030] A ball seat sealing structure is set up. When the glass blind plate is cracked and shattered, the shear pin between the ball seat and the inner sleeve can be cut off by holding pressure, thereby establishing a fluid channel and starting the milling operation. This method cleverly meets the requirement of cracking first and then milling.

[0031] The required small torque can be obtained by cooperating with the turbine assembly and the magnetic sleeve assembly, which also reduces the risk of sleeve damage during the milling process, and can effectively trim the remaining glass plate edges, thereby improving the safety of the glass blind plate opening operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0033] Figure 1 Schematic diagram of a glass blind panel auxiliary opening device according to an embodiment of the present invention.

[0034] Figure 2 Schematic diagram of the outer shell of a glass blind panel auxiliary opening device according to an embodiment of the present invention.

[0035] Description of Reference Numerals

[0036] 10 outer sleeve, 10a main body, 10b cavity, 10b1 first section, 10b2 second section, 10b3 third section, 10c first end, 10d second end, 10e first step portion, 10f discharge channel, 10g milling portion, 10h third step portion, 12 inner sleeve, 12a central cavity, 12b second step portion, 12c fluid inlet, 14 compression chamber, 16 elastic member, 18 piston, 20 fastener, 22 shear pin, 24 ball seat, 26 ball seat support, 30 cone head, 32 isolation sleeve, 34 turbine stator, 36 turbine rotor, 38 inner magnetic sleeve, 40 outer magnetic sleeve, 42 magnet, 44 bearing, 46 ball, 48 limit member, 50 joint. DETAILED DESCRIPTION

[0037] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the present invention pertains; the terms used in the specification herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention; for example, the directions or positions indicated by the terms "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are for ease of description only and should not be construed as limiting the present technical solution.

[0039] The terms "including," "having," and any variations thereof in the present specification, claims, and accompanying drawings are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the present specification, claims, and accompanying drawings are used to distinguish between different items, not to describe a particular order. "Multiple" means two or more, unless otherwise expressly specified.

[0040] In the specification and claims of the present invention and the above-mentioned description of the drawings, when an element is referred to as being “fixed to,” “mounted on,” “disposed on,” or “connected to” another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being “connected to” another element, it may be directly or indirectly connected to the other element.

[0041] Furthermore, references herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] The invention provides a glass blind panel auxiliary opening device. Figure 1 A schematic diagram of the overall structure of a glass blind panel auxiliary opening device according to an embodiment of the present invention is shown.

[0043] refer to Figure 1 The glass blind panel auxiliary opening device shown in this embodiment mainly includes a vibration generating mechanism and a rotation driving mechanism.

[0044] The vibration generating mechanism mainly includes an outer casing 10 , an inner casing 12 , a spring 16 , and a piston 18 .

[0045] refer to Figure 2 The outer shell 10 may include an axially extending main body 10a, a cavity 10b provided inside the main body 10a, and a milling portion 10g provided on the outer wall of the outer shell 10. The first end 10c of the main body 10a is tapered and provided with a cone head 30, and the second end 10d of the main body 10a is axially opposite to the first end 10c.

[0046] The cavity 10b is used to receive the inner casing 12, which is generally tubular. The cavity 10b starts from the second end 10d and extends toward the first end 10c in the main body 10a. An inner step (hereinafter referred to as the first step portion 10e) is formed on the inner wall of the main body 10a. Specifically, the cavity 10b can be composed of multiple sections. For example, Figure 2 In the illustrated example, cavity 10b includes a first section 10b1 and a second section 10b2. The first section 10b1 extends to a second end 10d and has a larger diameter than the connected second section 10b2. This forms an inner step 10e, which converges toward the central axis, at the junction of the first and second sections 10b1, 10b2. The second section 10b2 is closer to the first end 10c than the first section 10b1.

[0047] Optionally, in some embodiments, cavity 10b further includes a third section 10b3. Third section 10b3 is connected to second section 10b2 and is located closer to first end 10c. The diameter of third section 10b3 of cavity 10b is smaller than that of second section 10b2. This creates another inner step (hereinafter referred to as third step 10h) that converges toward the central axis at the junction of second section 10b2 and third section 10b3. Third step 10h can be used to support the bottom end of inner casing 12.

[0048] Optionally, the outer shell 10 is further provided with an exhaust channel 10f at a position near the first end 10c. The exhaust channel 10f passes through the main body 10a of the outer shell 10 and is connected to the third section 10b3 of the cavity. For example, one end of the exhaust channel 10f is connected to the third section 10b3 of the cavity, and the other end passes through the outer wall of the outer shell 10, and the part close to the outer wall is closer to the first end 10c than the part close to the cavity. The exhaust channel 10f can discharge the fluid entering the cavity 10b. The number of exhaust channels 10f can be 3 groups or more, with an angle of 45° to the axial direction, and multiple exhaust channels 10f are evenly arranged along the circumference of the main body 10a.

[0049] The first end 10c of the outer shell 10 is tapered, and a cone head with a tapered tip can be machined at its distal end. Optionally, in some embodiments, a removable cone head 30 can be provided at the first end 10c to improve the wear resistance and hardness of the cone head. For example, a mounting hole can be machined at the end of the first end 10c, and the cone head 30, for example, made of cemented carbide, can be installed in the mounting hole. The cone head 30 can be installed using threaded connections, welding, or other connection methods. The cross-sectional angle of the cemented carbide cone head can be 60°.

[0050] A milling portion 10g may be provided on the outer wall of the outer casing 10. This portion is used to mill and smooth the irregular edges of the glass blind panel after it is cracked. The milling portion 10g may be a hard alloy wear-resistant strip. The milling portion 10g may be a prismatic or cylindrical strip. For example, a predetermined length of hard alloy wear-resistant strip may be welded axially to the outer wall of the outer casing 10. However, according to the teachings of the present invention, it is also contemplated that a milling portion made of other materials may be used, as long as the material possesses sufficient hardness and wear resistance to remove the glass.

[0051] Next, the inner casing 12 is introduced. Figure 1 The inner casing 12 is installed in the cavity 10b of the outer casing 10 during use, and the outer wall of the inner casing 12 is generally in contact with the inner wall of the outer casing 10, and the bottom end of the inner casing 12 is supported on the third step 10h of the outer casing 10. Fasteners 20 such as rivets can be used to securely connect the inner casing 12 to the tube wall of the outer casing 10.

[0052] The inner casing 12 may include an axially extending central cavity 12a, a second step 12b, and a fluid inlet 12c. The second step 12b is formed on the outer wall of the inner casing 12. Axially, the second step 12b is closer to the second end 10d than the first step 10e. Furthermore, the outer wall of the inner casing 10 is closer to the central axis near the first end 10c than near the second end 10d. That is, the wall thickness of the inner casing 10 near the second end 10d is greater than that near the first end 10c. The second step 12b and the first step 10e have the same radial dimensions, thereby forming a compression chamber 14 defined by the first step 10e, the second step 12b, and the outer wall of the inner casing 10 and the inner wall of the outer casing 12 located therebetween. The fluid inlet 12c is located near the first step 10e and communicates with the compression chamber 14, for supplying fluid into the compression chamber 14 or for draining fluid from the compression chamber 14. The bottom opening of the central cavity 12a is closed by a member that can be opened under predetermined conditions.

[0053] An elastic member 16 and a piston 18 are provided in the compression chamber 14. The elastic member 16 can be a spring or a disc spring assembly. One end of the spring is fixed near the second step portion 12b, and the other end of the spring is connected to the piston 18. The piston 18 is arranged between the spring and the first step portion 10e and rests on the first step portion 10e under normal conditions. Under the action of fluid pressure, the piston 18 moves toward the second step portion 12b and compresses the elastic member 16. When the fluid pressure in the compression chamber 14 decreases, the piston 18 moves toward the first step portion 10e and impacts the first step portion 10e under the action of the restoring force of the elastic member 16. One or more sealing grooves can be provided on the side surfaces where the piston 18 rubs against the outer sleeve 10 and the inner sleeve 12, and a seal can be installed in the sealing groove to ensure the sealing between the piston and the side wall.

[0054] Continue to refer Figure 1 The following describes how the vibration generating mechanism generates vibration. When you want to shatter the glass blind plate, input a fluid, such as liquid, into the central cavity 12a. When the liquid level in the central cavity 12a rises to cover the fluid inlet 12c, the fluid enters the compression chamber 14. The liquid is pressurized, and when the liquid pressure increases, the piston 18 is pushed toward the spring 16, and the spring 16 is compressed. The liquid is then depressurized, and the piston 18 moves toward the first step 10e under the action of the spring restoring force, and impacts the first step 10e, forming an instantaneous vibration. The vibration is transmitted to the cone head 30 via the main body 10a of the outer shell 10. The cone tip of the cone head 30 contacts the glass blind plate. This area forms a stress concentration area. Repeated pressurization and decompression causes the glass plate to break.

[0055] Reference below Figure 1The rotary drive of this embodiment is described below. The rotary drive of this embodiment generally adopts a turbine and magnetic coupling drive method. The drive mainly includes a turbine assembly and a magnetic sleeve assembly.

[0056] The turbine assembly may include a turbine stator 34 and a turbine rotor 36. The turbine blades of the turbine stator 34 and the turbine blades of the turbine rotor 36 have the same angle but rotate in opposite directions. The two are coaxially arranged. The turbine rotor 36 has an output shaft located radially outside the turbine blades.

[0057] The magnetic sleeve assembly includes an inner magnetic sleeve 38 and an outer magnetic sleeve 40. An isolation sleeve 32 is provided between the inner magnetic sleeve 38 and the outer magnetic sleeve 40. The inner magnetic sleeve 38 is cylindrical. The inner magnetic sleeve 38 is fixedly connected to the output shaft of the turbine rotor 36 and is coaxially arranged with the turbine rotor 36. Optionally, the inner magnetic sleeve 38 can be integrally formed with the output shaft of the turbine rotor 36. Two sets of ball thrust bearings are symmetrically installed at the upper and lower ends of the inner magnetic sleeve 38. The outer magnetic sleeve 40 is arranged on the periphery of the isolation sleeve 32 and a bearing 44 is provided between the two. Magnets 42 are provided in both the inner magnetic sleeve 38 and the outer magnetic sleeve 40, and the magnets in both are opposite-polarity magnetic blocks. Each magnetic sleeve can include multiple magnets, and the multiple magnets are evenly distributed circumferentially in the magnetic sleeve. The circumferential number and axial number of the magnets can be various combinations, and the magnet blocks can be fixed by bonding. Therefore, the rotation of the inner magnetic sleeve 38 itself can drive the rotation of the outer magnetic sleeve 40.

[0058] In some embodiments, the isolation sleeve 32 includes a bottom, an isolation portion and an extension portion. The main body of the isolation sleeve 32 is cylindrical, and the bottom has a flange extending radially from the inner wall of the isolation sleeve 32 base toward the central axis, and the flange can support the bottom of the inner magnetic sleeve 38. The isolation portion is located between the bottom and the extension portion in the axial direction, and is located between the inner magnetic sleeve 38 and the outer magnetic sleeve 40 in the radial direction. The extension portion is arranged on the periphery of the turbine assembly, and can be fixed to the turbine stator by a threaded connection. The outer wall of the extension portion can be flush with the outer wall of the outer magnetic sleeve 40. The extension portion and the isolation portion form an outer step on the outer wall of the isolation sleeve 32, and the upper end of the outer magnetic sleeve 40 abuts against the outer step and uses the outer step to limit its axial movement. A bearing 44 is provided between the outer magnetic sleeve 40 and the isolation portion.

[0059] The isolation sleeve 32 also has an annular groove on the outer wall. The annular groove is used to accommodate the ball 46, and the depth of the groove is approximately the radius of the ball. Another annular groove matching the annular groove is provided at the corresponding position of the outer magnetic sleeve 40, and the depth of the groove is also approximately the radius of the ball 46. The two annular grooves are combined to form an entire annular groove for accommodating the ball 46. The outer magnetic sleeve 40 is also provided with a goal channel. The goal channel extends from the outer wall of the outer magnetic sleeve 40 to the annular groove of the outer magnetic sleeve 40, thereby forming a channel for dropping the ball 46 into the annular groove. When the annular groove is filled with balls such as steel balls, a limiter 48 (such as a welding block) is used to block the goal channel to prevent the ball 46 in the groove from slipping out. The balls arranged in the annular groove can reduce the friction between the outer magnetic sleeve 40 and the isolation sleeve 32, and can also limit the axial movement of the outer magnetic sleeve 40.

[0060] Optionally, in some embodiments, the glass blind panel auxiliary opening device may further include a joint 50. The joint 50 is cylindrical. The upper end of the joint 50 has a step that supports the isolation sleeve 32 and the outer magnetic sleeve 40. The lower end of the joint 50 has a connecting portion that connects the outer sleeve 10 and the inner sleeve 12. For example, an internal thread can be provided at the lower end of the joint 50, and an external thread can be provided at the upper end (i.e., the second end) of the inner sleeve 12 and / or the outer sleeve 10, so as to connect the vibration generating mechanism and the rotation drive mechanism together. The cavities of the inner magnetic sleeve 32, the joint 50 and the inner sleeve 12 are through-connected.

[0061] The following is a detailed description of the rotation method of the rotation drive mechanism. When it is desired to drive the outer shell 10 to rotate so as to use the milling portion 10g to mill the remaining glass edge. The structure at the bottom of the closed central cavity 12a is opened so that the central cavity 12a is connected to the third section 10b3 of the cavity of the outer magnetic sleeve 10 and the exhaust channel. A fluid such as a liquid is supplied from above the turbine stator 34. After flowing through the blades of the turbine rotor 36, the liquid drives the blades to rotate, thereby driving its output shaft and the inner magnetic sleeve 38 to rotate. The magnet 42 in the outer magnetic sleeve 40 rotates under the magnetic force of the magnet of the inner magnetic sleeve 38, driving the outer magnetic sleeve 40 to rotate. The outer magnetic sleeve 40 drives the joint 50 and the outer shell 10 connected to the joint 50 to rotate. When the outer shell 10 rotates, the milling portion 10g located on the outer shell 10 can mill the irregular edges of the glass blind plate.

[0062] In the above structure, the required small torque can be obtained through the cooperation of the turbine assembly and the magnetic sleeve assembly, which also reduces the risk of damage to the sleeve during the milling process, and can effectively trim the remaining glass plate edges, thereby improving the safety of the glass blind plate opening operation.

[0063] Alternatively, in addition to the drive method using the turbine assembly and magnetic assembly described in the above embodiment, the vibration generating mechanism of the present disclosure may also be driven to rotate by other mechanisms, such as an electric motor, a downhole motor, or other mechanism that can provide rotational power.

[0064] Optionally, in some embodiments of the present disclosure, frictional resistance is reduced by providing micro gaps between components that rotate relative to each other.

[0065] Optionally, in some embodiments of the present disclosure, Figure 1 As shown, a combined structure of a shear pin 22 and a ball seat 24 is used to achieve the effect of opening the bottom of the central cavity 12a under a predetermined pressure. For example, a ball seat 24 is provided at the bottom of the central cavity 12a, and a ball for sealing the central cavity 12a is placed on the ball seat 24. The base of the inner sleeve 12 and the base of the ball seat 24 are connected together using the shear pin 22. A ball seat holder 26 is provided in the third section 12b3 of the cavity of the outer sleeve 10. When it is desired to open the opening at the bottom of the central cavity 12a, pressurized fluid is injected into the central cavity 12a. When the pressure reaches a predetermined level, the shear pin 22 is sheared off, and the ball seat 24 falls onto the ball seat holder 26 in the third section 12b3. At this time, the central cavity 12a is connected to the exhaust channel 10f.

[0066] The use of the ball seat 24 and shear pin 22 structure to block the lower end of the central cavity 12a ensures that the liquid is retained in the central cavity 12a during the initial shattering of the glass, while also providing a channel for the liquid to flow out when milling is required later. This method cleverly meets the requirement of shattering first and then milling.

[0067] When the blind plate is opened using the glass blind plate auxiliary opening device according to the present invention, sufficient liquid is added to the central cavity 12a, and the liquid is pressurized so that the liquid enters the compression chamber 14 through the fluid inlet 12c. When the liquid pressure increases, the piston 18 is pushed toward the spring 16, and the spring 16 is compressed. The liquid is then depressurized, and the piston 18 moves toward the first step 10e under the action of the spring restoring force and impacts the first step 10e, forming an instantaneous vibration. This vibration is transmitted to the cone head 30 via the main body 10a of the outer shell 10. The cone tip of the cone head 30 contacts the glass blind plate. This area forms a stress concentration zone. Repeated pressurization and decompression causes the glass plate to break. After the glass breaks, the pressurization pressure is increased to a pressure higher than the shear pin 22 shearing pressure to cause the shear pin 22 to break. The central cavity 12a is connected to the discharge channel 10f and the outside. At this time, the water flowing into the central cavity 12a can flow to the outside. The continuous water flow causes the turbine rotor 36, inner magnetic sleeve 38, and outer magnetic sleeve 40 to rotate continuously, thereby driving the outer housing 10 to rotate continuously. The glass blind auxiliary opening device is moved downward so that the milling portion 10g reaches a position where it can mill the remaining portion of the glass blind. The milling process is repeated until the glass debris is cleared.

[0068] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0070] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A glass blind panel auxiliary opening device, characterized in that: include: An outer shell, comprising: an axially extending body having a first end provided with a tapered head; a cavity provided inside the main body, the cavity having an opening at a second end opposite to the first end, and the cavity forming a first step portion on an inner wall of the main body; a milling portion, the milling portion being arranged on the outer wall of the main body; The inner sleeve body, the outer wall of the inner sleeve body is arranged closely against the inner wall of the outer sleeve body, and the inner sleeve body comprises: a central cavity extending in the axial direction; a second step portion formed on the outer wall of the inner sleeve, the second step portion being closer to the second end than the first step portion, and the second step portion cooperates with the first step portion to form a compression chamber; a fluid inlet, the fluid inlet being located near the first step portion and connecting the compression chamber with the central chamber; a piston disposed in the compression chamber and close to the first step; an elastic member disposed in the compression chamber and located between the piston and the second step; a rotary drive connected to at least one of the outer casing or the inner casing and selectively driving the outer casing to rotate; The pressurization and depressurization of the liquid in the central cavity are utilized to cause the piston to impact the first step portion to generate instantaneous vibration, and the vibration is transmitted to the cone head to break the glass plate.

2. The device according to claim 1, characterized in that The cavity of the outer sleeve includes a first section, a second section, and a third section with different diameters and arranged in sequence along the axial direction. The first section extends to the second end and has the largest diameter. The diameter of the second section is smaller than that of the first section, thereby forming the first step portion. The diameter of the third section is smaller than that of the second section, thereby forming the third step portion. One end of the inner sleeve is supported on the third step portion.

3. The device according to claim 2, characterized in that The device further includes a ball seat disposed in the central cavity of the inner sleeve and located between the first step portion and the third step portion in the axial direction.

4. The device according to claim 3, characterized in that The outer shell further includes a discharge channel, an inner end of the discharge channel is connected to the bottom area of ​​the cavity, and an outer end of the discharge channel extends through the outer wall of the main body and is closer to the first end than the inner end.

5. The device according to claim 3, characterized in that The ball seat is mounted on the inner sleeve body using shear pins.

6. The device according to claim 1, characterized in that The rotary driver includes a turbine assembly and a magnetic sleeve assembly.

7. The device according to claim 6, characterized in that The turbine assembly includes a turbine stator and a turbine rotor, the magnetic sleeve assembly includes an inner magnetic sleeve and an outer magnetic sleeve, the output shaft of the turbine rotor is fixedly connected to the inner magnetic sleeve, and the outer magnetic sleeve is arranged on the periphery of the inner magnetic sleeve.

8. The device according to claim 7, characterized in that The turbine blades of the turbine stator and the turbine blades of the turbine rotor have the same angle but rotate in opposite directions. The magnets in the inner magnetic sleeve and the magnets in the outer magnetic sleeve are magnetic blocks of different poles.

9. The device according to claim 7, characterized in that The device further comprises a connector, one end of which is fixedly connected to the outer magnetic sleeve, and the other end of which is fixedly connected to the second end of the outer sleeve or the outer end of the inner sleeve.

10. The device according to claim 9, characterized in that The device also includes an isolation sleeve, which includes an isolation portion arranged between the inner magnetic sleeve and the outer magnetic sleeve, the isolation portion is provided with an annular groove, the outer magnetic sleeve is provided with another annular groove matching the annular groove, the annular groove and the another annular groove are combined to form an entire annular groove, the outer magnetic sleeve also has a ball channel connected to the another annular groove and extending radially along the outer magnetic sleeve, a ball is installed in the entire annular groove, and a limit member is installed in the ball channel to prevent the ball from escaping from the entire annular groove.

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