Special sand scattering tool for sand lifting pipe

Abstract

The utility model relates to a sand scattering tool special for a sand lifting pipe, and the sand scattering tool special for the sand lifting pipe is characterized in that the sand scattering tool comprises a plugging piece which comprises a plugging part and a connecting part, and a connecting piece which comprises a first end part and a second end part; the first end part and the connecting part are connected through the connecting assembly, so that the second end part and the plugging part can be far away from each other or close to each other; the second end part abuts against a preset fixing device, and the plugging part and the second end part are far away from each other, so that the plugging part abuts against the pipe orifice of the sand lifting pipe to realize plugging. According to the sand scattering tool provided by the embodiment of the invention, when the plugging part is used for plugging the top pipe opening of the sand lifting pipe and the air supply pipe supplies air to the bottom end of the sand lifting pipe, a closed space is formed below hardened quartz sand, under the action of air supply pressure, the hardened quartz sand is burst open and loosened, the effect of damaging the hardened quartz sand is achieved, and after loosening is completed, the sand scattering effect is improved. And the plugging part is moved away, and the sand lifting and cleaning process is continuously carried out, so that the sand lifting and cleaning process is smoothly carried out.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment equipment, and in particular to a loose sand tool specially used for a sand lifting pipe. Background Art

[0002] In sewage treatment equipment, quartz sand is widely used as filler in filtration equipment to filter sewage. Due to the influence of impurities in sewage, more impurities will accumulate in quartz sand with the long-term use of filtration equipment. Therefore, it is necessary to regularly remove and clean the quartz sand. The principle of sand removal and cleaning is as follows: Figure 1 As shown, the lower half of the filter device 1-1 is piled up with quartz sand, the sand lifting pipe 1-2 extends downward into the bottom of the quartz sand, and the air supply pipe 1-3 extends into the bottom of the quartz sand, and the air outlet end of the air supply pipe 1-3 is near the bottom end of the sand lifting pipe 1-2. Under the air supply of the air supply pipe 1-3, the quartz sand at the bottom moves upward along the sand lifting pipe 1-2, and is discharged from the top of the sand lifting pipe 1-2 and falls into the water again to achieve the effect of being cleaned by the water quality above. At the same time, a tray 1-4 is set at the upper part of the filter device 1-1 and below the top end of the sand lifting pipe 1-2. The quartz sand discharged from the top of the sand lifting pipe 1-2 falls into the tray and is cleaned. A drain pipe 1-5 is also provided on the tray 1-4 to discharge the water with high impurity content generated by cleaning the quartz sand. However, in practice, there are certain disadvantages when the sand lifting pipe 1-2 is used for sand lifting and cleaning. Due to the influence of impurities in the water, a certain bonding force is generated between the quartz sands. The area shown at point A is prone to compaction. When the sand is lifted and cleaned, the quartz sand at this point is compacted and cannot flow. After the quartz sand below is lifted, quartz sand cavities are generated below, making it impossible for the cleaning process to proceed normally. Utility Model Content

[0003] The purpose of the present application is to provide a special loose sand tool for a sand lifting pipe, by which the compacted quartz sand in a filtering device can be loosened, thereby effectively solving the deficiencies in the prior art.

[0004] To this end, the embodiment of the present application provides a loose sand tool dedicated to a sand lifting pipe, comprising:

[0005] A plugging member, comprising a plugging portion and a connecting portion, wherein the plugging portion is used to plug the pipe opening of the sand lifting pipe;

[0006] A connector including a first end and a second end;

[0007] A connecting assembly, wherein the first end portion and the connecting portion are adjusted and connected by the connecting assembly so that the second end portion and the blocking portion can move away from or approach each other;

[0008] In the working state, the second end abuts against a preset fixing device, and under the action of the connecting assembly, the blocking portion and the second end are moved away from each other, so that the blocking portion abuts against the pipe opening of the sand lifting pipe to achieve blocking.

[0009] In some possible implementations, the connection assembly is a threaded assembly, and the first end portion and the connection portion are threadably connected via the threaded assembly.

[0010] In some possible implementations, a threaded hole is provided on the connecting portion, and the first end portion is threadably matched with the threaded hole.

[0011] In some possible implementations, the connection portion is provided with at least one of a polygon, a cut edge, and a window for easy twisting.

[0012] In some possible implementations, the blocking portion is configured in a conical shape, with a large end at one end and a small end at the other end, and the small end of the blocking portion can be extended into the pipe opening of the sand lifting pipe to achieve blocking.

[0013] In some possible implementations, the blocking portion and the connecting portion are an integrally formed structure.

[0014] In some possible implementations, the blocking portion, the connecting portion, the first end portion, and the second end portion are coaxially arranged.

[0015] In some possible implementations, the first end and the second end are an integrally formed structure.

[0016] In some possible implementations, a bayonet is provided on the second end portion, and the second end portion is positioned by engaging with the bayonet and a preset fixing device.

[0017] In some possible implementations, the preset fixing device is a positioning piece, the position of the positioning piece and the sand lifting pipe is relatively fixed, the positioning piece is provided with an accommodating space for inserting the blocking piece and the connecting piece, the bayonet and the positioning piece are engaged, and when the second end and the blocking part are away from each other, the blocking part is pressed against the sand lifting pipe to achieve blocking.

[0018] According to the loose sand tool provided in the embodiment of the present application, the top pipe opening of the sand lifting pipe is sealed by the sealing part. When the air supply pipe supplies air to the bottom end of the sand lifting pipe, a closed space is formed under the compacted quartz sand. Under the action of the air supply pressure, the compacted quartz sand is flushed and loosened, thereby achieving the effect of destroying the compacted quartz sand. After the loosening is completed, the sealing part is removed and the sand lifting and cleaning process is continued, so that the sand lifting and cleaning process proceeds smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the principle of the sand lifting and cleaning process in the prior art;

[0020] Figure 2 A schematic diagram of the structure of a loose sand tool provided in an embodiment of the present application;

[0021] Figure 3 An exploded view of a loose sand tool provided in an embodiment of the present application;

[0022] Figure 4 Schematic diagram of the state between the loose sand tool and the sand lifting pipe provided in the embodiment of the present application Figure 1 ;

[0023] Figure 5 Schematic diagram of the state between the loose sand tool and the sand lifting pipe provided in the embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] like Figure 1-Figure 5 As shown, the embodiment of the present application provides a sand lifting pipe dedicated loose sand tool, which is used in sewage treatment equipment, especially in the sand lifting and cleaning process of the filtering equipment using quartz sand as filler, such as Figure 1As shown, the filter device 1-1 is cylindrical, and quartz sand is arranged in the lower half of the internal space of the filter device 1-1. As the filtering process is carried out for a long time, more impurities accumulate in the quartz sand, which affects the filtering effect. Therefore, it is necessary to lift and clean the quartz sand in the filter device 1-1. The cleaning principle is: a sand lifting pipe 1-2 is arranged in the filter device 1-1, and the bottom end of the sand lifting pipe 1-2 extends to the bottom of the accumulated quartz sand, and the top of the sand lifting pipe 1-2 extends out of the water surface. An air supply pipe 1-3 is also arranged, and the air outlet end of the air supply pipe 1-3 extends to the bottom end of the sand lifting pipe 1-2. Under the air supply effect of the air supply pipe 1-3, the pressure at the bottom of the quartz sand increases, and the quartz sand rises along the sand lifting pipe 1-2 and is discharged from the top of the sand lifting pipe 1-2, and then The quartz sand then falls back into the water above to achieve cleaning of the quartz sand. A tray 1-4 is also provided below the top of the sand lifting tube 1-2 in the filtering device 1-1. The top of the sand lifting tube 1-2 passes upward from the middle of the tray 1-4. A gap is provided between the tray 1-4 and the sand lifting tube 1-2 for the quartz sand to fall. The quartz sand discharged from the top of the sand lifting tube 1-2 is within the range of the tray 1-4 when it falls downward into the water. The quartz sand is cleaned in the process of falling back into the quartz sand pile on the tray 1-4. The tray 1-4 is provided to limit the dirty water after cleaning the quartz sand within the range of the tray 1-4 as much as possible. A drain pipe 1-5 is also provided on the tray 1-4 to discharge this part of the dirty water through the drain pipe 1-5.

[0026] In actual sand cleaning process, due to the influence of impurities in the water, Figure 1 The quartz sand in the range shown in the figure is prone to compaction, and the fluidity of the quartz sand is limited after compaction. When the quartz sand below is extracted, voids appear, and the cleaning process cannot be carried out smoothly. The loose sand tool provided in the embodiment of the present application is intended to loosen the compacted quartz sand in this area so that the sand extraction and cleaning process can be carried out smoothly.

[0027] In one embodiment, the special loose sand tool for the sand lifting pipe 700 includes a plugging member 1, a connecting member 2 and a connecting assembly, the connecting assembly is used to connect the plugging member 1 and the connecting member 2, preferably, the plugging member 1 and the connecting member 2 are components with a certain length, the plugging member 1 includes a plugging portion 11 and a connecting portion 12, the plugging portion 11 is used to plug the top end of the sand lifting pipe 700, the plugging portion 11 and the connecting portion 12 are connected, the connecting member 2 includes a first end 21 and a second end 22, the first end 21 and the second end 22 are connected to each other, the first end 21 of the connecting member 2 is used to be connected to the connecting portion 12, the first end 21 and the connecting portion 12 are adjustably connected through the connecting assembly, and when connected Under the action of the component, the second end 22 and the sealing part 11 can move away from or approach each other. In the working state, that is, when the quartz sand in the filtering equipment needs to be loosened, the second end 22 of the connecting member 2 is against the preset fixing device. Under the action of the connecting component, the first end 21 and the connecting part 12 are adjusted so that the sealing part 11 and the second end 22 are moved away from each other, so that the sealing part 11 is pressed against the top pipe mouth of the sand lifting pipe 700, that is, the second end 22 and the sealing part 11 are moved away from each other. Under the limiting action of the preset fixing device, the sealing part 11 is pressed against the top pipe mouth of the sand lifting pipe 700, thereby sealing the top pipe mouth of the sand lifting pipe 700.

[0028] At this time, air can no longer pass through the top of the sand lifting tube 700. When the exhaust pipe continues to inflate and pressurize the bottom of the sand lifting tube 700, the pressure in the area below the compacted quartz sand increases, and the compacted quartz sand can be loosened by relying on air pressure. After the quartz sand is loosened, the sand can be lifted and cleaned smoothly again. Therefore, under the action of the loose sand tool, the problem of compaction of quartz sand in the filtering equipment can be effectively solved, ensuring the smooth progress of the sand lifting and cleaning process.

[0029] Preferably, the connecting component is a threaded component, and the first end portion 21 and the connecting portion 12 are threadedly connected via the threaded component. For example, a threaded hole 1201 may be provided on the connecting portion 12, and an external thread may be provided on the first end portion 21. The first end portion 21 and the threaded hole 1201 are threadedly connected. The first end portion 21 is screwed into the threaded hole 1201, and the length of the first end portion 21 extending into the threaded hole 1201 can be adjusted by rotation, thereby achieving the second end portion 22 and the sealing portion 11 moving away from or close to each other.

[0030] In this embodiment, at least one of a polygonal structure, a cutting structure and a window structure that are convenient for screwing can also be provided on the connecting part 12, so as to facilitate screwing with the help of auxiliary tools such as a wrench, pliers or a lever, and adjust the length of the threaded hole 1201 in which the first end 21 is screwed into the connecting part 12.

[0031] Preferably, the sealing portion 11 is arranged in a conical shape, with a large end at one end and a small end at the other end of the sealing portion 11. One end of the large end of the sealing portion 11 is used to be connected to the connecting portion 12, and one end of the small end of the sealing portion 11 can be inserted into the pipe mouth of the sand lifting pipe 700 to achieve the sealing of the pipe mouth of the sand lifting pipe 700. In this embodiment, the inclined outer wall of the sealing portion 11 and the pipe mouth of the sand lifting pipe 700 are tightly matched. When the length of the first end 21 extending into the threaded hole 1201 on the connecting portion 12 is adjusted, the sealing portion 11 and the second end 22 are moved away from each other, so that the conical sealing portion 11 is inserted into the pipe mouth of the sand lifting pipe 700 and continues to be tightened, generating a tightening force on the pipe mouth in both radial and axial directions, thereby improving the sealing effect on the pipe mouth.

[0032] The sealing part 11 and the connecting part 12 are preferably an integrally formed structure. The connecting part 12 is cylindrical and the sealing part 11 is conical. The outer diameter of the large end of the sealing part 11 is the same as the outer diameter of the connecting part 12 to improve the integrity of the components.

[0033] The first end portion 21 and the second end portion 22 are preferably integrally formed structures. Both the first end portion 21 and the second end portion 22 are cylindrical structures, and the outer diameter of the second end portion 22 is greater than the outer diameter of the first end portion 21 .

[0034] In one example, when the first end 21 is screwed into the threaded hole 1201 on the connecting part 12, the first end 21, the second end 22, the connecting part 12 and the sealing part 11 are coaxially arranged, and the components are centrally symmetrical in structure, and the structure is more stable. When under the tightening action of a preset fixing device, the force applied by the sealing part 11 to the pipe mouth of the sand lifting pipe 700 is more stable. In this example, the structure for convenient screwing provided on the connecting part 12 is preferably an external hexagonal boss 121, which is provided at the end of the connecting part 12 away from the sealing part 11, and the threaded hole 1201 passes through the boss 121, so that the sealing member 1 can be screwed as a whole conveniently through the boss 121.

[0035] Preferably, a bayonet 2201 is also provided on the second end 22, and the bayonet 2201 is used to engage with a preset fixing device for positioning. Under the action of the bayonet 2201, a limit is formed between the second end 22 and the preset fixing device, and then the sealing member 1 is screwed so that the sealing portion 11 blocks the pipe opening of the sand lifting pipe 700.

[0036] Preferably, the preset fixing device can be a positioning member 600, which is door-shaped, and the positions of the positioning member 600 and the sand lifting tube 700 are relatively fixed. A accommodating space for the sealing member 1 and the connecting member 2 is provided on the positioning member 600, that is, the middle space of the door-shaped positioning member 600. After the connecting member 2 and the sealing member 1 enter the middle space of the positioning member 600, the bayonet 2201 and the thickness edge of the positioning member 600 are engaged, and then the sealing member 1 is screwed through the boss 121 with the help of a tool, so that the length of the first end portion 21 extending into the connecting portion 12 is reduced, so that the sealing portion 11 can tightly seal the pipe mouth of the sand lifting tube 700.

[0037] In this embodiment, the bayonet 2201 is a groove formed on the end surface of the second end portion 22 , the width of the groove is smaller than the diameter of the second end portion 22 , and the groove passes through both sides of the second end portion 22 along the diameter direction.

[0038] Preferably, the overall structure of the positioning member 600 is a flat plate structure, and a door-shaped hole is opened through the thickness in the middle of the positioning member 600, that is, a door-shaped positioning member 600 is formed. The door-shaped positioning member 600 is arranged perpendicular to the horizontal plane. In the process of sealing the pipe mouth of the sand lifting pipe 700, the upper and lower length directions of the positioning member 600 are parallel to the axial directions of the sealing member 1, the connecting member 2 and the axial direction of the sand lifting pipe 700. More specifically, the axial directions of the sealing member 1, the connecting member 2 and the sand lifting pipe 700 are all in the plane where the positioning member 600 is hidden, so that the pressing force on the sand lifting pipe 700 is more stable.

[0039] The blocking portion 11 may be conical or frustum-shaped, as long as it can partially extend into the sand lifting pipe 70 to block the pipe opening.

[0040] Preferably, the cone angle of the sealing part 11 is 10 degrees, so that the difference in the outer diameters of the large and small heads of the sealing part 11 is small. When the sealing part 11 is axially pressed against the mouth of the sand lifting pipe 700, the sealing part 11 extends more smoothly, which is more conducive to increasing the radial acting stress between the sealing part 11 and the mouth of the pipe, thereby improving the sealing effect.

[0041] In this embodiment, based on the tray 900 in the filtering device, since the sand lifting tube 700 passes through the tray 900 upward, the positioning member 600 can be arranged on the tray 900, and a circular supporting member 800 is arranged on the tray 900. The supporting member 800 is coaxial with the vertically arranged sand lifting tube 700, and a space for quartz sand to fall is reserved between the supporting member 800 and the sand lifting tube 700. The bottom of the positioning member 600 and the top of the supporting member 800 are welded and connected, and the height of the supporting member 800 can be the same as the height of the top of the sand lifting tube 700. In actual operation, when it is necessary to seal the top of the sand lifting tube 700, the boss 121 is first screwed so that the first end portion 21 is screwed more into the threaded hole 1201 of the connecting portion 12, so that the overall length of the component is reduced, so that the overall component can be adapted to the middle space of the positioning member 600. Figure 4 As shown, after fitting in, the bayonet 2201 on the second end 22 and the inner end of the positioning member 600 are engaged, and then the plugging member 1 is rotated through the boss 121 with the help of a wrench or other tools. During the rotation, the plugging member 1 and the sand lifting pipe 700 should be kept in a coaxial corresponding state. Under the action of the threaded assembly, the first end 21 is made to extend outward more from the threaded hole 1201 on the plugging portion 11, so that the overall side length of the component is increased, so that the plugging portion 11 on the plugging member 1 is partially extended into the pipe mouth of the sand lifting pipe 700, as shown in FIG. Figure 5 As shown, continue to tighten so that the sealing part 11 seals the pipe mouth of the sand lifting pipe 700, and then the air supply pipe supplies air to the bottom of the filtering device. Since the air flow cannot flow out through the top of the sand lifting pipe 700, the compacted quartz sand in the filtering device is loosened and blown away. After the blowing is completed, the sealing part 1 is screwed through the boss 121 to make the first end 21 extend further into the connecting part 12, and the overall length of the component is reduced. The component can be removed from the positioning member 600 to carry out sand lifting and cleaning again.

[0042] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0043] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0044] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0045] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A loose sand tool for a sand lifting pipe, characterized in that: include: A plugging member, comprising a plugging portion and a connecting portion, wherein the plugging portion is used to plug the pipe opening of the sand lifting pipe; A connector including a first end and a second end; A connecting assembly, wherein the first end portion and the connecting portion are adjusted and connected by the connecting assembly so that the second end portion and the blocking portion can move away from or approach each other; In the working state, the second end abuts against a preset fixing device, and under the action of the connecting assembly, the blocking portion and the second end are moved away from each other, so that the blocking portion abuts against the pipe opening of the sand lifting pipe to achieve blocking.

2. The special loose sand tool for sand lifting pipe according to claim 1, characterized in that: The connecting assembly is a threaded assembly, and the first end portion and the connecting portion are threadably connected via the threaded assembly.

3. The special loose sand tool for sand lifting pipe according to claim 2, characterized in that: The connecting portion is provided with a threaded hole, and the first end portion is threadably matched with the threaded hole.

4. The special loose sand tool for sand lifting pipe according to claim 3, characterized in that: The connecting portion is provided with at least one of a polygon, a cut edge and a window for easy twisting.

5. The special loose sand tool for sand lifting pipe according to claim 1, characterized in that: The plugging part is arranged in a cone shape, with a large end at one end and a small end at the other end, and the small end of the plugging part can be extended into the pipe opening of the sand lifting pipe to achieve plugging.

6. The special loose sand tool for sand lifting pipe according to claim 5, characterized in that: The blocking portion and the connecting portion are integrally formed.

7. The special loose sand tool for sand lifting pipe according to claim 5, characterized in that: The blocking portion, the connecting portion, the first end portion and the second end portion are coaxially arranged.

8. The special loose sand tool for sand lifting pipe according to claim 1, characterized in that: The first end portion and the second end portion are an integrally formed structure.

9. The special loose sand tool for sand lifting pipe according to claim 1, characterized in that: The second end is provided with a bayonet, which is engaged with a preset fixing device to position the device.

10. A loose sand tool for a sand lifting tube according to claim 9, characterized in that: The preset fixing device is a positioning piece, the position of the positioning piece and the sand lifting pipe is relatively fixed, the positioning piece is provided with an accommodating space for inserting the plugging piece and the connecting piece, the bayonet and the positioning piece are engaged, and when the second end and the plugging part are away from each other, the plugging part is pressed against the sand lifting pipe to achieve plugging.

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