Cracker and cracking device

Abstract

The present disclosure relates to the field of rock and mineral mining technology, and in particular to an expander and an expansion device. The expander includes: a center rod and an expansion member, the center rod has a medium channel, the expansion member is sleeved on at least a portion of the outer circumference of the center rod, and a sealed chamber is provided between the expansion member and the outer circumference of the center rod, and the sealed chamber is connected to the medium channel. The expansion member is configured so that when the sealed chamber is filled with a medium, at least a portion of the expansion member moves in a direction away from the center rod. The expander provided by the present disclosure has high safety and will not cause harm to the health of construction workers. The expander can be reused, thereby reducing the cost of multiple expansions. At the same time, the use of the expander can reduce the difficulty and construction time of the expansion construction of rocks and / or minerals. In addition, the expander has a wide range of applications and strong environmental adaptability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of rock and mineral mining, and in particular to a fracturing machine and a fracturing device. Background Art

[0002] Currently, in the field of rock and mineral mining, pre-cracking and slitting the roof of the goaf is necessary during rock and / or mineral mining. Existing methods commonly used for pre-cracking and slitting the goaf roof include blasting, hydraulic pre-cracking, and CO2 pre-cracking. However, blasting can lead to air pollution, hydraulic pre-cracking can waste water resources, and CO2 pre-cracking can be difficult to implement.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0004] The present disclosure aims to provide a burster and a bursting device, which have high safety, low bursting cost, low construction difficulty, wide application range and strong environmental adaptability.

[0005] The present disclosure provides a burster, comprising:

[0006] a center rod having a medium passage;

[0007] An expansion member is sleeved on at least a portion of the outer circumference of the center rod, and a sealed chamber is provided between the expansion member and the outer circumference of the center rod, and the sealed chamber is connected to the medium channel; the expansion member is configured so that when the sealed chamber is filled with a medium, at least a portion of the expansion member moves in a direction away from the center rod.

[0008] In an exemplary embodiment of the present disclosure, the expansion member includes:

[0009] a deformation element, sleeved on at least a portion of the outer circumference of the central rod, and the sealed chamber is located between the deformation element and the outer circumference of the central rod;

[0010] An expansion element is provided on a side of the deformation element away from the central rod;

[0011] When the sealed chamber is filled with the medium, at least part of the deformation element can push the bursting element to move in a direction away from the axis of the central rod.

[0012] In an exemplary embodiment of the present disclosure, the deformation element is disposed around the outer circumference of the central rod, and the bursting element is disposed around the outer circumference of the deformation element.

[0013] In an exemplary embodiment of the present disclosure, in the circumferential direction of the center rod, the outer peripheral surface of the deformation element has a first peripheral portion and a second peripheral portion, and the bursting element includes:

[0014] an extrusion block surrounding the first peripheral portion;

[0015] The telescopic member surrounds the second outer peripheral portion, and two ends of the telescopic member in the circumferential direction are respectively connected to two ends of the extrusion block in the circumferential direction.

[0016] In an exemplary embodiment of the present disclosure, the first periphery includes at least two first sub-peripheries, the second periphery includes at least two second sub-peripheries, and there is one second sub-periphery between any two of the first sub-peripheries;

[0017] The extrusion block includes at least two sub-extrusion blocks, the at least two sub-extrusion blocks correspond to at least two first sub-peripheral portions, and each sub-extrusion block surrounds the first sub-peripheral portion corresponding thereto;

[0018] The telescopic member includes at least two sub-telescopic members, and the at least two sub-telescopic members correspond to at least two second sub-peripheral portions. Each sub-telescopic member surrounds the second sub-peripheral portion corresponding thereto, and both ends of each sub-telescopic member are respectively connected to the two adjacent sub-extrusion blocks.

[0019] In an exemplary embodiment of the present disclosure, the first peripheral portion includes two first sub-peripheral portions, the second peripheral portion includes two second sub-peripheral portions, and the two first sub-peripheral portions are arranged opposite to each other;

[0020] The extrusion block includes two sub-extrusion blocks, and the two sub-extrusion blocks respectively surround the first sub-peripheral portion.

[0021] In an exemplary embodiment of the present disclosure, the two first sub-peripheral portions are symmetrically arranged through a reference line, and the two sub-extrusion blocks are symmetrically arranged through the reference line;

[0022] The reference line is a virtual line passing through the axis of the central rod and perpendicular to the axis of the central rod.

[0023] In an exemplary embodiment of the present disclosure, the sub-extrusion block includes a middle portion and edge portions located at both ends of the middle portion, and there is an accommodating space between the edge portion and the first sub-peripheral portion, and part of the sub-telescopic part is also located in the accommodating space.

[0024] In an exemplary embodiment of the present disclosure, the outer circumferential surface of the deformation element is in contact with the inner circumferential surface of the bursting element.

[0025] Another aspect of the present disclosure provides a bursting device, comprising:

[0026] A burster, wherein the burster is the burster described above;

[0027] The medium filling device is communicated with the medium channel and is used for introducing the medium into the medium channel.

[0028] The technical solution provided by the present disclosure can achieve the following beneficial effects:

[0029] The present disclosure provides a burster comprising a central rod and an expansion member. The central rod has a medium passage, and a sealed chamber is defined between the expansion member and the outer circumference of the central rod, the sealed chamber communicating with the medium passage. The expansion member is configured such that when the sealed chamber is filled with a medium, at least a portion of the expansion member moves away from the central rod.

[0030] Thus, the present invention provides a cracking device that utilizes the pressure of a medium within a sealed chamber to propel an expansion member away from a central rod, thereby applying pressure to the area to be cracked, thereby forming cracks in the desired area. Consequently, cracking rock and / or minerals using this cracking device is less difficult and requires fewer steps, saving significant construction time and costs.

[0031] Furthermore, the use of the present invention's fracturing device for rock and / or mineral fracturing eliminates the need for explosives, thereby preventing the release of harmful gases and protecting construction workers from harmful gases. Furthermore, because the present invention's fracturing device utilizes medium pressure for fracturing, compared to explosives, the fracturing process is easier to control, thereby improving safety and further minimizing danger to construction workers. Furthermore, the present invention's fracturing device is safer to store and transport than explosives.

[0032] Secondly, when using the present invention's cracker for cracking, only the sealed chamber needs to be filled with a medium. Because the cracker's sealed chamber is relatively small, only a small amount of medium is required to complete the cracking operation, significantly saving costs compared to existing technologies. Furthermore, the cracker provided by the present invention is not limited to the type of medium; it can be liquid, gas, or a gas-liquid mixture, thereby expanding the cracker's applicability and environmental adaptability.

[0033] Furthermore, after the burster completes a bursting operation, the medium in the sealed chamber can be removed, allowing the expansion element to return to its original position. This allows the burster to be reused, reducing the cost of multiple bursting operations. Furthermore, when the area to be bursted is too deep, the burster can be used for segmented bursting, thereby meeting the requirements of different bursting depths, further expanding the burster's applicability and environmental adaptability.

[0034] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0036] Figure 1 A longitudinal cross-sectional schematic diagram of a fracturing tube according to an exemplary embodiment of the present disclosure is shown;

[0037] Figure 2 An exemplary embodiment of the present disclosure is shown. Figure 1 Schematic diagram of the AA section;

[0038] Figure 3 FIG2 shows a cross-sectional schematic diagram of a fracturing tube before expansion according to an exemplary embodiment of the present disclosure;

[0039] Figure 4 A cross-sectional schematic diagram of a fracturing tube after expansion according to an exemplary embodiment of the present disclosure is shown.

[0040] Description of reference numerals:

[0041] 1. Center rod; 11. Medium channel; 111. First channel; 112. Second channel; 12. Rod; 13. First head; 14. Second head;

[0042] 2. Expansion element; 21. Deformation element; 22. Bursting element; 221. Extrusion block; 2211. Sub-extrusion block; 22111. Middle portion; 22112. Edge portion; 222. Telescopic element; 2221. Sub-telescopic element;

[0043] 3. Sealing chamber; 4. Reference line; 5. First fixing ring; 6. Second fixing ring; 7. First pressure cover; 8. Second pressure cover; 9. First sealing member; 10. Second sealing member; 15. Third sealing member; 16. First locking member; 161. First sub-locking member; 162. Second sub-locking member; 17. Second locking member; 171. Third sub-locking member; 172. Fourth sub-locking member. DETAILED DESCRIPTION

[0044] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0045] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via the other structure.

[0046] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first" and "second" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0047] The present disclosure provides a fracturing device that can be used in rock mining, mineral mining, and other fields to perform fracturing and slitting of rocks and / or minerals. For example, in coal mining, the fracturing device can be used to pre-crack and slit the goaf of the roof. This allows the self-weight stress of the roof rock strata and the pressure of the mine to cause the mining area to collapse and fill, thereby achieving automatic lane formation and pillar-free mining.

[0048] like Figures 1 to 4As shown, the burster provided by the present disclosure may include: a central rod 1 and an expansion member 2. The central rod 1 may have a medium channel 11. The expansion member 2 is sleeved on at least a portion of the outer circumference of the central rod 1, and a sealed chamber 3 is defined between the expansion member 2 and the outer circumference of the central rod 1. The sealed chamber 3 is in communication with the medium channel 11, and the medium can enter the sealed chamber 3 through the medium channel 11. For example, the sealed chamber 3 may be a chamber naturally formed by leaving a gap between the outer circumference of the central rod 1 and the inner circumference of the expansion member 2, or it may be a chamber structure additionally provided between the outer circumference of the central rod 1 and the inner circumference of the expansion member 2.

[0049] The expansion member 2 can be configured so that when the sealed chamber 3 is filled with a medium, at least a portion of the expansion member 2 moves in a direction away from the center rod 1. It is understood that at least a portion of the expansion member 2 can move in a direction away from the axis of the center rod 1 during the expansion process, that is, at least a portion of the expansion member 2 can expand in a direction away from the axis of the center rod 1; or, at least a portion of the expansion member 2 can move in a direction extending along the axis of the center rod 1 during the expansion process, that is, at least a portion of the expansion member 2 can expand in a direction extending along the axis of the center rod 1; or, a portion of the expansion member 2 can move in a direction away from the axis of the center rod 1 during the expansion process, and a portion of the expansion member 2 can move in a direction extending along the axis of the center rod 1 during the expansion process, that is, at least a portion of the expansion member 2 can expand both in a direction away from the axis of the center rod 1 and in a direction extending along the axis of the center rod 1. For example, the direction away from the axis of the center rod 1 can be perpendicular to the direction extending along the axis of the center rod 1, but is not limited thereto.

[0050] Thus, the present invention provides a cracking device that utilizes the pressure of the medium within the sealed chamber 3 to propel the expansion member 2 away from the center rod 1. The expansion member 2 then applies pressure to the area to be cracked, thereby forming cracks in the area to be cracked. Consequently, cracking of rocks and / or minerals using this cracking device is less difficult and involves fewer steps, saving significant construction time and costs.

[0051] Furthermore, the use of the present invention's fracturing device for rock and / or mineral fracturing eliminates the need for explosives, thereby preventing the release of harmful gases and protecting construction workers from harmful gases. Furthermore, because the present invention's fracturing device utilizes medium pressure for fracturing, compared to explosives, the fracturing process is easier to control, thereby improving safety and further minimizing danger to construction workers. Furthermore, the present invention's fracturing device is safer to store and transport than explosives.

[0052] Secondly, when using the expander disclosed in the present invention for expansion construction, it is only necessary to fill the sealed chamber 3 with a medium. Since the sealed chamber 3 of the expander is small, only a small amount of medium is needed to complete the expansion construction, which can save a lot of costs compared to the existing technology.

[0053] In addition, after the burster completes one bursting operation, the medium in the sealed chamber 3 can be removed, so that the expansion member 2 returns to its original position, thereby allowing the burster to be reused and reducing the cost of multiple bursting operations.

[0054] Furthermore, because the cracker is reusable, it can be used to crack deep areas in sections, thereby meeting the requirements for different cracking depths and further improving its applicability and environmental adaptability. For example, if the cracker is 1 meter long and the area to be cracked is 10 meters, it can be used to crack the area in 10 steps, thus reducing the cracker length and meeting the height restrictions of the underground tunnel.

[0055] In some embodiments, the medium can be gas, liquid, or a mixture of gas and liquid. For example, the medium can be oil, water, air, etc. This disclosure does not limit the type of medium and can be selected and configured according to actual circumstances, all within the scope of protection of this disclosure. Therefore, the burster provided by this disclosure is not limited to the type of medium, which can improve the scope of application and environmental adaptability of the burster.

[0056] In some embodiments, as Figure 1 and Figure 2 As shown, the expansion member 2 may include a deformation element 21 and a bursting element 22. The deformation element 21 may be sleeved around at least a portion of the outer circumference of the center rod 1, and the sealed chamber 3 may be located between the deformation element 21 and the outer circumference of the center rod 1. The bursting element 22 may be disposed on the side of the deformation element 21 away from the center rod 1, that is, on the outer circumference of the deformation element 21. When the sealed chamber 3 is filled with a medium, at least a portion of the deformation element 21 can push the bursting element 22 in a direction away from the axis of the center rod 1. It is understood that when the sealed chamber 3 is filled with a medium, the filling medium can increase the pressure in the sealed chamber 3, causing the deformation element 21 to deform and move away from the center rod 1. As a result, the deformation element 21 pushes the bursting element 22 during movement, causing the bursting element 22 to follow the deformation element 21 and thus move away from the axis of the center rod 1.

[0057] The deformable element 21 can be an oil bladder, an air bladder, or the like, and can be made of rubber. This configuration ensures that the deformable element 21 has good deformability and excellent recovery properties, allowing it to return to its initial state after the fracturing operation is completed, preparing for the next fracturing operation. Furthermore, when the deformable element 21 is made of rubber, it has excellent structural strength, preventing rupture when subjected to high pressure.

[0058] However, the present invention is not limited thereto, and the deformation element 21 may also be other elements, such as a spring, etc. The deformation element 21 may also be made of a material other than rubber, for example, metal, polymer material, etc.

[0059] In some embodiments, as Figures 1 to 4 As shown, the deformation element 21 can be arranged around the outer circumference of the center rod 1, that is, it can be understood that the deformation element 21 can surround the outer circumference of the center rod 1 360°. The bursting element 22 can be arranged around the outer circumference of the deformation element 21, that is, it can be understood that the bursting element 22 can surround the outer circumference of the deformation element 21 360°. This arrangement can increase the uniformity of the force applied to the deformation element 21 and the bursting element 22, and improve the bursting effect of the burster.

[0060] It should be noted that when the deformation element 21 can be arranged around the outer circumference of the center rod 1, the inner circumference of the deformation element 21 and the outer circumference of the center rod 1 can both form the sealed chamber 3. That is, the sealed chamber 3 can also surround the outer circumference of the center rod 1 360°.

[0061] like Figures 2 to 4 As shown, in the circumferential direction of the center rod 1, the outer peripheral surface of the deformation element 21 can have a first peripheral portion and a second peripheral portion, and the expansion element 22 can include: an extrusion block 221 and a telescopic member 222. Among them, the extrusion block 221 can surround the first peripheral portion, the telescopic member 222 can surround the second peripheral portion, and the two ends of the telescopic member 222 in the circumferential direction can be respectively connected to the two ends of the extrusion block 221 in the circumferential direction. In this way, by setting the extrusion block 221, the rock and / or mineral in the area to be expanded can be squeezed, so that the rock and / or mineral squeezed by the extrusion block 221 is expanded. In addition, since the extrusion block 221 is only set at the first peripheral portion, the extrusion block 221 can be used to directionally expand the rock and / or mineral in the area to be expanded, thereby improving the expansion accuracy of the expander, avoiding destructive phenomena such as collapse, and improving the safety of the expansion construction.

[0062] At the same time, by providing the telescopic member 222 surrounding the second peripheral portion, the deformation direction of the deformation element 21 can be limited. For example: Figure 2 and Figure 3 As shown, the telescopic member 222 can be in a relaxed state when the deformation element 21 is not deformed. Figure 4 As shown, when the deformation element 21 is deformed, the telescopic member 222 can be in a tensioned state, so that the deformation element 21 cannot expand in the direction close to the telescopic member 222, so that the deformation element 21 can only expand in the direction close to the extrusion block 221, so that the deformation element 21 can directionally push the extrusion block 221 to move in a predetermined direction, thereby achieving the purpose of directional expansion.

[0063] The extrusion block 221 can be made of a metal material, such as stainless steel or high-strength steel. This configuration improves the structural strength of the extrusion block 221 and enhances its ability to extrude rocks and / or minerals. The telescopic member 222 can be made of polyurethane to ensure its ability to deform and expand. However, this is not intended to limit the present disclosure. The extrusion block 221 and the telescopic member 222 can also be made of other materials, and this is not a specific limitation.

[0064] The extrusion block 221 and the telescopic member 222 can be formed integrally through an integrated molding process without the need for other connecting members or materials. This can reduce the number of connection points between the extrusion block 221 and the telescopic member 222 and improve the connection strength between the extrusion block 221 and the telescopic member 222. For example, the extrusion block 221 and the telescopic member 222 can be integrally cast, but the present invention is not limited thereto.

[0065] In addition, the extrusion block 221 and the telescopic member 222 may not be formed integrally using an integrated molding technique, that is, the extrusion block 221 and the telescopic member 222 may be manufactured separately and then connected using other connecting members or connecting materials. This arrangement can reduce the difficulty of manufacturing the extrusion block 221 and the telescopic member 222.

[0066] In some embodiments, the first peripheral portion may include at least two first sub-peripheral portions, and the second peripheral portion may include at least two second sub-peripheral portions. A second sub-peripheral portion may be located between any two first sub-peripheral portions, i.e., a first sub-peripheral portion may be located between any two second sub-peripheral portions. For example, the first peripheral portion may have two first sub-peripheral portions, and the second peripheral portion may have two second sub-peripheral portions; alternatively, the first peripheral portion may have three first sub-peripheral portions, and the second peripheral portion may have three third sub-peripheral portions, etc., which can be selected and arranged according to the needs of directional bursting.

[0067] like Figures 2 to 4As shown, the extrusion block 221 may include at least two sub-extrusion blocks 2211. The at least two sub-extrusion blocks 2211 may correspond to at least two first sub-peripheral portions, and each sub-extrusion block 2211 may surround its corresponding first sub-peripheral portion. That is, when the first periphery has two first sub-peripheral portions, the extrusion block 221 may include two sub-extrusion blocks 2211, and the two sub-extrusion blocks 2211 may each surround a first sub-peripheral portion. When the first periphery has three first sub-peripheral portions, the extrusion block 221 may include three sub-extrusion blocks 2211, and the three sub-extrusion blocks 2211 may each surround a first sub-peripheral portion, etc.

[0068] The telescopic member 222 may include at least two sub-telescopic members 2221, each of which may correspond to at least two second sub-peripheral portions. Each sub-telescopic member 2221 may surround its corresponding second sub-peripheral portion. That is, when the second periphery has two second sub-peripheral portions, the telescopic member 222 may include two sub-telescopic members 2221, each of which may surround a second sub-peripheral portion. When the second periphery has three second sub-peripheral portions, the telescopic member 222 may include three sub-telescopic members 2221, each of which may surround a second sub-peripheral portion. The two ends of each of the above-mentioned sub-telescopic members 2221 may be respectively connected to the two adjacent sub-extrusion blocks 2211. It is understood that the number of sub-telescopic members 2221 is the same as the number of sub-extrusion blocks 2211, thereby ensuring that the two ends of each telescopic member 222 can be respectively connected to the two adjacent sub-extrusion blocks 2211.

[0069] This embodiment increases the number of directions of directional bursting by providing at least two sub-extrusion blocks 2211 and at least two sub-telescopic parts 2221, so that the burster can complete bursting work in multiple areas during one bursting operation, thereby improving bursting efficiency, further shortening bursting time and reducing bursting costs.

[0070] In some embodiments, as Figures 2 to 4 As shown, the first peripheral portion can include two first sub-peripheral portions, and the second peripheral portion can include two second sub-peripheral portions, and the two first sub-peripheral portions can be arranged opposite each other. The extrusion block 221 can include two sub-extrusion blocks 2211, each of which can surround a first sub-peripheral portion. This arrangement allows the burster to simultaneously burst two opposing areas during a single bursting operation, thereby improving bursting efficiency while avoiding the increased probability of destructive phenomena such as collapse caused by bursting too many areas simultaneously.

[0071] The two first sub-peripheral portions can be symmetrically arranged through the reference line 4, and the two sub-extrusion blocks 2211 can be symmetrically arranged through the reference line 4. The reference line 4 can be a virtual line passing through the axis of the center rod 1 and perpendicular to the axis of the center rod 1. It should be noted that since the reference line 4 is a virtual line, the reference line 4 does not necessarily exist in the actual structure. With such an arrangement, the two first sub-peripheral portions arranged relatively to each other can have the same shape and size, and the two sub-extrusion blocks 2211 arranged relatively to each other can have the same shape and size, so that the forces on the two sub-extrusion blocks 2211 arranged relatively to each other are the same, and the pressures applied to the two relatively bursting areas are the same, thereby ensuring that the bursting effect of the burster on each bursting area is the same, and further improving the bursting effect of the burster and the safety during the bursting process.

[0072] In some embodiments, the sub-extrusion block 2211 may include a middle portion 22111 and edge portions 22112 located at both ends of the middle portion 22111. The edge portion 22112 may have a storage space between it and the first sub-peripheral portion, and a portion of the sub-telescopic member 2221 may also be located within the storage space. Because the sub-telescopic member 2221 is relaxed in its initial state, the space occupied by the sub-telescopic member 2221 in its initial state is relatively large. If the placement space for the sub-telescopic member 2221 is too small, the sub-telescopic member 2221 may protrude too far from the sub-extrusion block 2211, causing the sub-telescopic member 2221 to rub against the hole wall during placement of the bursting tube in the hole, resulting in damage. Thus, by providing a storage space in the edge portion 22112, this embodiment can utilize the storage space to place a portion of the sub-telescopic member 2221, preventing the sub-telescopic member 2221 from protruding from the sub-extrusion block 2211 when relaxed, thereby reducing the probability of damage to the sub-telescopic member 2221 and improving the stability and service life of the bursting member.

[0073] In some embodiments, as Figures 1 to 4 As shown, the outer circumference of the deformable element 21 can be aligned with the inner circumference of the bursting element 22. This arrangement eliminates any gap between the deformable element 21 and the bursting element 22, allowing the deformable element 21 to immediately push the bursting element 22 when deformed, thereby improving the burster's operating sensitivity. However, this is not limiting. A gap can also exist between the outer circumference of the deformable element 21 and the inner circumference of the bursting element 22. This can be selected and configured according to actual circumstances and is within the scope of this disclosure.

[0074] In some embodiments, the cross-section of the pull rod can be circular, elliptical, rectangular, hexagonal, etc. For example: when the cross-section of the pull rod is circular, the deformation element 21 can be a circular ring, and the expansion element can be a circular ring. In this case, the extrusion block 221 in the expansion element can be arc-shaped, for example, a "C" shape, etc. When the cross-section of the pull rod is elliptical, the deformation element 21 can be an elliptical ring, and the expansion element can be an elliptical ring. In this case, the extrusion block 221 in the expansion element can be arc-shaped, for example, a "C" shape, etc. When the cross-section of the pull rod is rectangular, the deformation element 21 can be a rectangular ring, and the expansion element can be a rectangular ring. In this case, the extrusion block 221 in the expansion element can be a right-angled "C" shape, etc.

[0075] In some embodiments, as Figure 1 As shown, the medium channel 11 may include a first channel 111 and a second channel 112. The first channel 111 may extend from one end surface of the center rod 1 to the other end surface. One end of the second channel 112 may communicate with the first channel 111, and the other end may communicate with the sealed chamber 3. This arrangement can divide a curved medium channel 11 into two straight channels, avoiding the need to directly define the curved medium channel 11 within the center rod 1, thereby reducing the difficulty of forming the medium channel 11 within the center rod 1.

[0076] The extension length of the first channel 111 can be less than half the length of the center rod 1. This configuration can reduce the amount of medium retained in the first channel 111 during the fracturing process, thereby reducing medium consumption and achieving efficient fracturing. Furthermore, the extension length of the first channel 111 can be less than one-third the length of the center rod 1, thereby further reducing medium consumption.

[0077] Furthermore, the width of the second channel 112 can be smaller than the width of the first channel 111. Such a setting can cause a narrow tube effect when the medium flows from the first channel 111 into the second channel 112, and can increase the pressure of the medium entering the sealed chamber 3 to further improve the bursting effect of the burster.

[0078] The axis of the second channel 112 can be perpendicular to the axis of the first channel 111. Such a setting can minimize the length of the second channel 112, reduce the amount of medium retained in the second channel 112 during the bursting construction process, further reduce the consumption of the medium, and enable the medium to reach the sealed chamber 3 faster, thereby improving the sensitivity of the burster.

[0079] In some embodiments, the expander may further include: a first fixing ring 5 and a second fixing ring 6. The first fixing ring 5 and the second fixing ring 6 may be sleeved on the outer circumference of the center rod 1 and arranged at both ends of the expansion member 2 for fixing the expansion member 2.

[0080] In the expansion member 2, the length of the deformation element 21 can be greater than the length of the bursting element 22. The first fixing ring 5 and the second fixing ring 6 can be located at both ends of the bursting element 22 and can be sleeved over a portion of the outer circumference of the deformation element 21. The first fixing ring 5 and the second fixing ring 6 can be connected to the deformation element 21 to fix the expansion member 2.

[0081] The first and second fixing rings 5, 6, and the deformable element 21 are integrally formed using an integrated molding process, without the need for other connectors or materials. This reduces the number of connection points between the first and second fixing rings 5, 6, and the deformable element 21, thereby improving the connection strength between the first and second fixing rings 5, 6, and the deformable element 21. For example, the first and second fixing rings 5, 6, and the deformable element 21 may be integrally molded by casting, but is not limited thereto.

[0082] Alternatively, the first and second fixing rings 5, 6, and the deformable element 21 may be formed integrally without using integrated molding technology. Specifically, the first and second fixing rings 5, 6, and the deformable element 21 may be manufactured separately and then connected using other connectors or materials. This arrangement reduces the difficulty of manufacturing the first and second fixing rings 5, 6, and the deformable element 21.

[0083] The expander may also include: a first pressure cap 7 and a second pressure cap 8. The first pressure cap 7 and the second pressure cap 8 are both sleeved on the outer circumference of the center rod 1, and the first pressure cap 7 can be located on the side of the first fixing ring 5 away from the expansion member 2, and the second pressure cap 8 can be located on the side of the second fixing rod away from the expansion member 2, so as to limit and fix the expansion member 2, the first fixing ring 5 and the second fixing ring 6 in the axial direction of the center rod 1, so as to prevent the expansion member 2, the first fixing ring 5 and the second fixing ring 6 from falling off. In addition, by providing the first pressure cap 7 and the second pressure cap 8, the sealed chamber 3 can be blocked to improve the airtightness of the sealed chamber 3.

[0084] Furthermore, the burster may also include a first seal 9 and a second seal 10. The first seal 9 may be disposed between the first gland 7 and the first retaining ring 5 and may cover one end of the sealed chamber 3. The second seal 10 may be disposed between the second gland 8 and the second retaining ring 6 and may cover the other end of the sealed chamber 3. This arrangement further improves the airtightness of the sealed chamber 3, preventing air or liquid leakage from the sealed chamber 3 and ensuring the normal operation of the burster. The first seal 9 and the second seal 10 may be sealing rings, but are not limited thereto.

[0085] The burster may further include: a first locking member 16 and a second locking member 17. The first locking member 16 may be sleeved on the outer circumference of the center rod 1 and disposed on the side of the first gland 7 facing away from the expansion member 2; the second locking member 17 may be sleeved on the outer circumference of the center rod 1 and disposed on the side of the second gland 8 facing away from the expansion member 2. The first locking member 16 and the second locking member 17 are used to limit and secure the various components located therebetween, ensuring that the various structures of the burster will not loosen or detach during operation, thereby further improving the stability of the burster.

[0086] The first locking member 16, the second locking member 17, and the outer circumference of the center rod 1 can be connected. For example, the first locking member 16, the second locking member 17 and the outer circumference of the center rod 1 can be connected by threads, which can ensure high connection strength while facilitating disassembly and installation, thereby facilitating later maintenance and replacement of various components of the expander. However, the first locking member 16, the second locking member 17 and the outer circumference of the center rod 1 can also be connected by welding, clamping, or other methods, all of which are within the scope of the present disclosure and can be selected and set according to actual needs.

[0087] The first locking member 16 can include a first sub-locking member 161 and a second sub-locking member 162. The first sub-locking member 161 can be sleeved onto the outer circumference of the center rod 1 and located on the side of the first gland 7 facing away from the expansion member 2. The second sub-locking member 162 can be sleeved onto the outer circumference of the center rod 1 and located on the side of the first sub-locking member 161 facing away from the expansion member 2. This arrangement further enhances the position-limiting and securing capabilities of the first locking member 16.

[0088] The second locking member 17 can include a third sub-locking member 171 and a fourth sub-locking member 172. The third sub-locking member 171 can be sleeved onto the outer circumference of the center rod 1 and located on the side of the second gland 8 facing away from the expansion member 2. The fourth sub-locking member 172 can be sleeved onto the outer circumference of the center rod 1 and located on the side of the third sub-locking member 171 facing away from the expansion member 2. This arrangement can further enhance the positioning and securing capabilities of the second locking member 17.

[0089] In some embodiments, the center rod 1 may include a rod portion 12 and a first head portion 13 and a second head portion 14 located at both ends of the rod portion 12. The width of the rod portion 12 may be greater than the width of the first head portion 13, and the width of the rod portion 12 may also be greater than the width of the second head portion 14.

[0090] The expansion member 2 can be sleeved on the outer circumference of the rod 12, and the first channel 111 can extend from the end of the first head 13 away from the rod 12 toward the second head 14. Because the width of the rod 12 is greater than the widths of the first head 13 and the second head 14, the structural strength of the rod 12 can be enhanced compared to the first head 13 and the second head 14. Therefore, sleeved on the outer circumference of the rod 12, the expansion member 2 can avoid damage to the rod 12 due to the high pressure in the sealed chamber 3 when the expander is in operation.

[0091] The above-mentioned second channel 112 can be arranged on the rod 12, and there can be a gap between the second channel 112 and the first sealing gasket to avoid the second channel 112 being too close to the first sealing gasket, resulting in high-pressure gas or liquid entering the sealing chamber 3 through the second channel 112 and causing a large impact on the first sealing gasket and damaging the first sealing gasket.

[0092] Furthermore, the first gland 7 and the first locking member 16 can both be sleeved on the outer circumferential surface of the first head 13. Since the width of the rod 12 is greater than the width of the first head 13, a first step is formed at the connection between the rod 12 and the first head 13. The first gland 7 can abut against the first step, thereby facilitating the installation of the first gland 7 and improving the limiting and fixing effects of the first gland 7.

[0093] The first sealing member 9 may also abut against the first step to facilitate the arrangement of the first sealing member 9 and improve the sealing effect of the first sealing member 9 .

[0094] The second fixing ring 6 can be disposed on the outer circumference of the second head 14. Since the width of the stem 12 is greater than that of the second head 14, a second step is formed at the connection between the stem 12 and the second head 14. The second fixing ring 6 can abut against the second step to facilitate the installation of the second fixing ring 6. In addition, the second gland 8 and the second locking member 17 can also be sleeved on the outer circumference of the second head 14.

[0095] In some embodiments, a third sealing member 15 may be provided between the second fixing ring 6 and the second step, and the third sealing member 15 may cover the sealed chamber 3 to further improve the airtightness of the sealed chamber 3. The third sealing member 15 may also be a sealing ring, but is not limited thereto.

[0096] In some embodiments, a bursting device is provided. Figure 4 As shown, the bursting device may include: a burster and a medium filling device. The burster may be the burster described above. The medium filling device may be connected to the medium channel 11 and used to pass the medium into the medium channel 11.

[0097] It should be noted that the present disclosure has already provided a detailed description of the specific structure and beneficial effects of the expander in the previous embodiment, so in this embodiment, the specific structure and beneficial effects of the expander will not be repeated. Please refer to the specific description in the previous embodiment, which is all within the scope of protection of the present disclosure.

[0098] Since the bursting device provided in this embodiment includes the bursting device described above. Figures 1 to 4 As shown, the aforementioned burster may include: a central rod 1 and an expansion member 2. The central rod 1 may have a medium passage 11. The expansion member 2 is sleeved over at least a portion of the outer circumference of the central rod 1, and a sealed chamber 3 is defined between the expansion member 2 and the outer circumference of the central rod 1. The sealed chamber 3 is in communication with the medium passage 11. The medium output by the medium filling device may enter the sealed chamber 3 through the medium passage 11. The expansion member 2 may be configured such that when the sealed chamber 3 is filled with the medium, at least a portion of the expansion member 2 moves away from the central rod 1.

[0099] Thus, the present invention provides a cracking device that utilizes the pressure of the medium within the sealed chamber 3 to propel the expansion member 2 away from the center rod 1. The expansion member 2 then applies pressure to the area to be cracked, thereby forming cracks in the area to be cracked. Consequently, cracking of rocks and / or minerals using this cracking device is less difficult and involves fewer steps, saving significant construction time and costs.

[0100] Furthermore, the fracturing device disclosed herein eliminates the need for explosives when fracturing rocks and / or minerals, thereby preventing the release of harmful gases and protecting construction workers from harmful gases. Furthermore, because the fracturing device disclosed herein utilizes medium pressure for fracturing, compared to explosives, the fracturing process is easier to control, thereby improving safety and further minimizing danger to construction workers. Furthermore, the fracturing device provided herein is safer to store and transport than explosives.

[0101] Secondly, when using the fracturing device disclosed herein for fracturing, only the sealed chamber 3 needs to be filled with a medium. Because the sealed chamber 3 of the fracturing device is relatively small, only a small amount of medium is required to complete the fracturing operation, significantly saving costs compared to existing technologies. Furthermore, the fracturing device provided herein is not limited to the type of medium; it can be liquid, gas, or a gas-liquid mixture, thereby improving the fracturing device's applicability and environmental adaptability.

[0102] In addition, after the bursting device completes a bursting operation, the medium in the sealed chamber 3 of the burster can be discharged, so that the expansion member 2 returns to its original position, so that the bursting device can be reused and the cost of multiple bursting operations can be reduced.

[0103] At the same time, when the area to be fractured is too deep, the fracturer can be used for segmented fracture, thereby meeting the depth of different fracture areas and further improving the scope of application and environmental adaptability of the fracturer.

[0104] In some embodiments, the medium filling device may be a liquid pressure pump and / or a gas pressure pump, but is not limited thereto. The medium filling device may also be other filling devices, which is not specifically limited in this disclosure.

[0105] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A burster, characterized in that: include: a center rod having a medium passage; an expansion member, sleeved on at least a portion of the outer circumference of the center rod, and defining a sealed chamber between the expansion member and the outer circumference of the center rod, the sealed chamber being in communication with the medium passage; the expansion member being configured such that when the sealed chamber is filled with a medium, at least a portion of the expansion member moves in a direction away from the center rod; The expansion member includes: a deformation element and a bursting element, wherein the deformation element is arranged around the outer circumference of the center rod, and the sealed chamber is located between the deformation element and the outer circumference of the center rod; the bursting element is arranged around the outer circumference of the deformation element; when the sealed chamber is filled with the medium, at least part of the deformation element can push the bursting element to move in a direction away from the axis of the center rod; In the circumferential direction of the center rod, the outer circumferential surface of the deformation element has a first outer circumferential portion and a second outer circumferential portion, and the bursting element includes: an extrusion block and a telescopic member, the extrusion block surrounds the first outer circumferential portion, the telescopic member surrounds the second outer circumferential portion, and the two ends of the telescopic member in the circumferential direction are respectively connected to the two ends of the extrusion block in the circumferential direction; Among them, the extrusion block includes a sub-extrusion block, the sub-extrusion block includes a middle part and edge parts located at both ends of the middle part, and there is a accommodating space between the edge part and the first peripheral part; the telescopic part includes a sub-telescopic part, and part of the sub-telescopic part is also located in the accommodating space.

2. The burster according to claim 1, characterized in that The first peripheral portion includes at least two first sub-peripheral portions, the second peripheral portion includes at least two second sub-peripheral portions, and there is one second sub-peripheral portion between any two of the first sub-peripheral portions; The extrusion block includes at least two sub-extrusion blocks, the at least two sub-extrusion blocks correspond to at least two first sub-peripheral portions, and each sub-extrusion block surrounds the first sub-peripheral portion corresponding thereto; The telescopic member includes at least two sub-telescopic members, and the at least two sub-telescopic members correspond to at least two second sub-peripheral portions. Each sub-telescopic member surrounds the second sub-peripheral portion corresponding thereto, and both ends of each sub-telescopic member are respectively connected to the two adjacent sub-extrusion blocks.

3. The burster according to claim 2, characterized in that: The first peripheral portion includes two first sub-peripheral portions, the second peripheral portion includes two second sub-peripheral portions, and the two first sub-peripheral portions are arranged opposite to each other; The extrusion block includes two sub-extrusion blocks, and the two sub-extrusion blocks respectively surround the first sub-peripheral portion.

4. The burster according to claim 3, characterized in that The two first sub-peripheral portions are symmetrically arranged along a reference line, and the two sub-extrusion blocks are symmetrically arranged along the reference line; The reference line is a virtual line passing through the axis of the central rod and perpendicular to the axis of the central rod.

5. The burster according to any one of claims 1 to 4, characterized in that: The outer circumferential surface of the deformation element is in contact with the inner circumferential surface of the bursting element.

6. A bursting device, characterized in that: include: A burster, wherein the burster is the burster according to any one of claims 1 to 5; The medium filling device is communicated with the medium channel and is used for introducing the medium into the medium channel.

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