CN221372939U - Pneumatic shaftless pump pushing multistage supercharging device for super high-rise pumped concrete - Google Patents
Pneumatic shaftless pump pushing multistage supercharging device for super high-rise pumped concrete Download PDFInfo
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- CN221372939U CN221372939U CN202323303592.8U CN202323303592U CN221372939U CN 221372939 U CN221372939 U CN 221372939U CN 202323303592 U CN202323303592 U CN 202323303592U CN 221372939 U CN221372939 U CN 221372939U
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- 239000004567 concrete Substances 0.000 title claims abstract description 42
- 238000005086 pumping Methods 0.000 claims abstract description 62
- 230000001681 protective effect Effects 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 210000001503 joint Anatomy 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 65
- 239000010959 steel Substances 0.000 claims description 65
- 238000010276 construction Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model discloses a pneumatic shaftless pump pushing multistage supercharging device for super high-rise pumping concrete, which comprises a multistage supercharging assembly and two buffer assemblies, wherein the multistage supercharging assembly and the two buffer assemblies are sequentially connected, the first-stage supercharging assembly and the last-stage supercharging assembly are respectively connected with the two buffer assemblies, the supercharging assembly comprises a rotor assembly, a power assembly, a cylindrical protection cover and a supporting end cover, the cylindrical protection cover consists of an outer side plate of the cylindrical protection cover and an annular protection cover plate, and an air inlet hole and an air outlet hole are formed in the outer side plate of the cylindrical protection cover; the power component comprises a high-pressure air pump, an air pipe, a butt joint nut and a power component outer side plate, the air pipe is connected to the high-pressure air pump and is communicated with an air inlet hole of the cylindrical protective cover outer side plate through the butt joint nut, and air flow generated by the power component drives the rotor component to rotate. The utility model has the advantages that: the multistage supercharging assemblies connected in series can realize multiple supercharging.
Description
Technical Field
The utility model relates to the technical field of deep mine concrete pipeline transportation, in particular to a pneumatic shaftless pump pushing multistage supercharging device for super high-rise pumping concrete.
Background
With the development of urban construction, super high-rise buildings are increasingly increased, and the test of super high-rise building on vertical transportation of building materials is also increasingly severe. In addition to the concrete mix problem, the technical difficulties of super high-rise pumping mainly come from the conveying capacity of concrete pumping equipment and pumping pipelines. When the building height reaches 300 m to 500 m, the pumping of concrete becomes more difficult, and in addition, the super high-rise building usually uses high-strength high-performance concrete, so that the test of the pumping system is further promoted by the improvement of the strength of the concrete material. If the pumping system is unreasonably arranged in the construction process, the pump pipe is extremely easy to have a pipe blocking event; or when the pumping pressure does not meet the high demand, the project construction is stopped and high cost is brought, so that the performance of the selected pumping equipment, the arrangement of the pumping system and the related operation process are particularly important to whether ultra-high pressure pumping can be realized.
At present, the related construction methods of domestic ultrahigh pressure pumping are fewer, the pumping system is lack, the conventional pumping technology is imperfect, concrete pumping is uncontrollable, and the events such as insufficient pumping pressure, pipe blockage in the pumping process and the like are very easy to occur in high-rise pumping. In conventional super high-rise construction projects, super high pressure pumps and relay pumping methods are generally adopted. For example, patent number CN 115680285A, an ultra-high-rise concrete pumping system and a construction method, provides huge pressure pumping concrete through an ultra-high pressure pump set. In terms of a relay pumping method and a device, a pulse type pressure compensation long-distance concrete conveying device and a using method thereof are disclosed in patent No. CN 111622779A, a plurality of pneumatic booster pumps are arranged on a conveying pipeline at intervals, an air outlet pipe of each pneumatic booster pump is connected to the conveying pipeline, the pushing pressure lost by concrete in conveying is compensated, the concrete pressure in the whole conveying pipeline is kept stable, the construction pumping system of concrete long-distance conveying patent No. CN 103541550A, namely, a super high-rise building steel pipe concrete is realized, a high-pressure pump and a pouring hose are connected through a discharge hole, and the two concrete pumps are connected with a low-pressure pump in a relay mode to achieve the purpose of super high-rise pumping. Although the prior art solves the problems of insufficient pressure and relay pumping of some high-rise pumping concrete, the following problems still exist: (1) Long-distance and super-high-rise pumping, high pressure pump pressure, high performance and cost of the high-pressure pump, high performance required for pipelines adjacent to the pressure pump, increased equipment cost and low construction safety; (2) The traditional pressure pump is used for providing intermittent pumping pressure, so that a conveying pipeline is easy to be blocked; (3) The traditional pressure pump has larger vibration and noise, which is not beneficial to environmental protection; (4) the conventional pressure pump cannot achieve multi-stage supercharging.
Disclosure of Invention
According to the defects of the prior art, the pneumatic shaftless pumping multistage supercharging device for pumping concrete in an ultra-high layer is provided, a multistage supercharging assembly, a buffer assembly and a connecting pipe are arranged on the pneumatic shaftless pumping multistage supercharging device, and the pneumatic shaftless pumping multistage supercharging device is connected with a conveying pipe through the connecting pipe, wherein blades are arranged on the inner wall of the supercharging assembly, a steel cylinder with blades on the inner wall is driven to rotate by high-pressure air flow, the blades rotating at high speed are provided for concrete pressure, the supercharging purpose is achieved, the multistage supercharging assembly can be used for supercharging for many times, the concrete pumping pressure is ensured to meet the requirement, and the casting construction quality can be ensured; meanwhile, the multistage supercharging assembly is connected with the conveying pipe through the buffering assembly, so that the pressure and the supercharging impact load of concrete are buffered, and the safety and the stability of the conveying pipeline are guaranteed.
The utility model is realized by the following technical scheme:
The utility model provides a pneumatic type shaftless pump of super high-rise pumping concrete pushes away multistage supercharging device which characterized in that: the pneumatic shaftless pump pushing multi-stage supercharging device comprises a multi-stage supercharging assembly and two buffer assemblies, wherein the supercharging assemblies are sequentially connected, and the supercharging assemblies at the first stage and the supercharging assemblies at the last stage are respectively connected with the two buffer assemblies; the supercharging assembly comprises a rotor assembly, a power assembly, a cylindrical protective cover and supporting end covers, wherein the rotor assembly is arranged in the cylindrical protective cover, and the supporting end covers are arranged at two ends of the rotor assembly and the power assembly; the cylindrical protective cover consists of a cylindrical protective cover outer plate and an annular protective cover plate, and the cylindrical protective cover outer plate is provided with an air inlet and an air outlet; the power assembly comprises a high-pressure air pump, an air pipe, a butt joint nut and a power assembly outer plate, wherein the air pipe is connected to the high-pressure air pump, the air pipe is communicated with the air inlet hole of the cylindrical protective cover outer plate through the butt joint nut, two sides of the power assembly outer plate are respectively connected with two support end covers, and air flow generated by the power assembly drives the rotor assembly to rotate.
The rotor assembly comprises a steel cylinder, annular sliding blocks, blades and counter-force blades, wherein the annular sliding blocks are arranged at two ends of the steel cylinder, the blades are arranged along the circumference of the inner wall of the steel cylinder, the counter-force blades are arranged along the circumference of the outer wall of the steel cylinder, and annular sliding grooves matched with the annular sliding blocks are formed in the cylindrical protective cover.
The pressure sensor and the speed sensor are arranged on the inner side of the support end cover, the pressure sensor is circumferentially arranged along the inner side of the support end cover, and each speed sensor is located between two adjacent pressure sensors.
The buffer assembly comprises an annular buffer seat, an annular buffer cavity arranged in the annular buffer seat, a plurality of buffer springs arranged along the annular direction of the annular buffer cavity, and an annular steel support with one end connected with the support end cover, wherein the other end of the annular steel support extends into the annular buffer cavity and is connected with an annular steel pad, and the annular steel pad is in contact with or connected with the buffer springs corresponding to the annular buffer cavity.
And a rubber gasket is arranged between the support end cover and the annular buffer seat, and the rubber gasket is sleeved outside the annular steel support.
The annular buffer seat is composed of a cylindrical buffer inner steel plate, a cylindrical buffer outer steel plate, an annular buffer bottom plate and an annular steel clamping plate, an annular notch communicated with the annular buffer cavity is formed in the annular steel clamping plate, the annular notch is wider than the annular buffer cavity, and the annular steel backing ring is wider than the annular notch.
The two buffer components are respectively connected with two connecting pipes, and one end of each connecting pipe is provided with threads.
The utility model has the advantages that:
(1) The initial pumping pressure of the high-rise building is reduced, the construction safety is ensured, the requirements on the pressure of pumping equipment and the strength of a conveying pipeline are simultaneously reduced, and the equipment cost investment is reduced;
(2) The pneumatic shaftless pumping multistage supercharging device can increase the pumping height of pumped concrete;
(3) The pneumatic shaftless pumping multistage supercharging device has large internal space and is beneficial to pumping concrete;
(4) The multistage supercharging assemblies connected in series can realize multiple supercharging.
Drawings
FIG. 1 is a schematic illustration of the present utility model;
FIG. 2 is a schematic cross-sectional position of the present utility model;
FIG. 3 is a circuit diagram of a control system of the present utility model;
FIG. 4 is a cross-sectional view of A-A of FIG. 2;
FIG. 5 is a cross-sectional view of B-B of FIG. 2;
FIG. 6 is a cross-sectional view of C-C of FIG. 2;
FIG. 7 is a cross-sectional view of D-D of FIG. 2;
FIG. 8 is a cross-sectional view of E-E of FIG. 2;
FIG. 9 is a cross-sectional view of F-F of FIG. 2;
As shown in fig. 1 to 9, the label marks in the figures are as follows:
a. Pneumatic shaftless pump pushing multi-stage supercharging device, a1. first stage supercharging assembly, a2 second stage supercharging assembly, a3. third stage supercharging assembly;
1. The device comprises a pressurizing assembly, a buffer assembly, a connecting pipe, a conveying pipe, a pumping concrete conveying direction and a rotating direction, wherein the pressurizing assembly, the buffer assembly, the connecting pipe, the conveying pipe, the pumping concrete conveying direction and the rotating direction are respectively arranged in the pressurizing assembly, the buffering assembly, the connecting pipe and the conveying pipe;
11. Rotor assembly, 12, power assembly, 13, cartridge shroud, 14, support end cap, 15, control system, 111, steel cylinder, 112, annular slide, 113, vane, 114, counterforce vane, 121, high pressure air pump, 122, air tube, 123, docking nut, 124, power assembly outboard plate, 131, cartridge shroud outboard plate, 132, annular shroud cover, 133, air inlet, 134, air outlet, 135, annular chute, 151, pressure sensor one, 152, pressure sensor two, 153, pressure sensor three, 154, pressure sensor four, 155, speed sensor one, 156, speed sensor two, 157, speed sensor three, 158, speed sensor four, 159, processor.
21. The annular buffer seat comprises an annular steel support, an annular steel pad, an annular buffer cavity, an annular buffer spring, a rubber gasket, a cylindrical buffer inner steel plate, a cylindrical buffer outer steel plate, an annular buffer bottom plate and an annular steel clamping plate, wherein the annular buffer inner steel plate is arranged in the annular buffer seat, the annular steel support is arranged in the annular buffer bottom plate, the annular buffer bottom plate is arranged in the annular buffer bottom plate, and the annular steel clamping plate is arranged in the annular buffer bottom plate;
31. connecting cylinder, 32. Screw thread.
Detailed Description
The features of the utility model and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
Examples: as shown in fig. 1-9, this embodiment relates to a pneumatic shaftless pumping multistage supercharging device for pumping concrete in super high-rise, the pneumatic shaftless pumping multistage supercharging device a is disposed on a conveying pipe 4, the pneumatic shaftless pumping multistage supercharging device a mainly includes a three-stage supercharging component 1, two buffer components 2 and two connecting pipes 3, the supercharging components 1, the buffer components 2 and the connecting pipes 3 are coaxially disposed, the three-stage supercharging component 1 is a first-stage supercharging component a1, a second-stage supercharging component a2 and a third-stage supercharging component a3 respectively, the three-stage supercharging components 1 are sequentially connected, the first-stage supercharging component a1 and the third-stage supercharging component a3 are respectively connected with the two buffer components 2, the two buffer components 2 are respectively connected with the two connecting pipes 3, the connecting pipes 3 are in threaded connection with the conveying pipe 4, specifically, the connecting pipes 3 are connecting cylinders 31 with threads 32, one ends of the connecting cylinders 31 are fixedly connected with the buffer components 2, and the other ends of the connecting cylinders are connected with the conveying pipe 4 through threads 32 thereon.
As shown in fig. 1-6, the supercharging assembly 1 comprises a rotor assembly 11, a power assembly 12, a cylindrical protective cover 13, a supporting end cover 14 and a control system 15, wherein the supporting end cover 14 is arranged at two ends of the rotor assembly 11 and the power assembly 12, the rotor assembly 11 is arranged in the cylindrical protective cover 13, the power assembly 12 is arranged outside the rotor assembly 11, and the power assembly 12 can drive the rotor assembly 11 to rotate. The barrel-type protective cover 13 is composed of a barrel-type protective cover outer side plate 131 and an annular protective cover plate 132, wherein an air inlet hole 133 and an air outlet hole 134 are formed in the barrel-type protective cover outer side plate 131, in the embodiment, two air inlet holes 133 and two air outlet holes 134 are formed in the barrel-type protective cover outer side plate 131, an annular sliding groove 133 is formed in the annular protective cover plate 132, and the annular protective cover plate 132 is fixedly connected with the supporting end cover 14. The rotor assembly 11 comprises a steel cylinder 111, annular sliding blocks 112, blades 113 and counter-force blades 114, wherein the annular sliding blocks 112 are arranged at two ends of the steel cylinder 111, the annular sliding blocks 112 are matched with the annular sliding grooves 133, the annular sliding blocks 112 can rotate in the annular sliding grooves 133, the blades 113 are circumferentially arranged along the inner wall of the steel cylinder 111, a group of blades 113 are arranged in a fan shape and are obliquely arranged, the blades 113 are positioned in the middle of the inner wall of the steel cylinder 111, the conveying direction 5 of pumped concrete is from bottom to top, the blades 113 can bear the impact of the pumped concrete and guide the pumped concrete, and the counter-force blades 114 are circumferentially arranged along the outer wall of the steel cylinder 111.
The power component 12 comprises a high-pressure air pump 121, an air pipe 122, a butt-joint nut 123 and a power component outer plate 124, the air pipe 122 is connected to the high-pressure air pump 121, the air pipe 122 is communicated with an air inlet hole 133 of a cylinder type protective cover outer plate 132 through the butt-joint nut 123, two sides of the power component outer plate 124 are respectively connected with two support end covers 14 and used for protecting the high-pressure air pump 121, and in the embodiment, the high-pressure air pump 121 is provided with two. The high-pressure air flow generated by the high-pressure air pump 121 sequentially enters the cylinder-type protective cover 13 through the air pipe 122 and the air inlet hole 133, and acts on the counterforce blades 114 to drive the steel cylinder 111 to rotate, namely the annular sliding block 112 rotates in the annular sliding groove 133, so that the rotation of the blades 113 is realized (the rotation direction 6 of the supercharging device is shown in fig. 2).
As shown in fig. 1, 3 and 6, the control system 15 includes a pressure sensor, a speed sensor and a processor 155, wherein the pressure sensor and the speed sensor are respectively electrically connected to the processor 155, respectively measure the pressure and the speed of the concrete through the pressure sensor and the speed sensor, and transmit data to the processor 155 for analysis and processing. The pressure sensors and the speed sensors are respectively arranged along the circumference of the inner wall of the steel cylinder 111, and the pressure sensors and the speed sensors are arranged in a staggered manner, namely, each speed sensor is arranged between two adjacent pressure sensors, and each pressure sensor is arranged between two adjacent speed sensors. In this embodiment, the pressure sensor includes a first pressure sensor 151, a second pressure sensor 152, a third pressure sensor 153 and a fourth pressure sensor 154, the speed sensor includes a first speed sensor 155, a second speed sensor 156, a third speed sensor 157 and a fourth speed sensor 158, the first pressure sensor 151 and the first speed sensor 155 are both located at the side portion of the lower end supporting end cover 14 of the first stage supercharging assembly a1, the second pressure sensor 152 and the second speed sensor 156 are both located at the side portion of the supporting end cover 14 between the first stage supercharging assembly a1 and the second stage supercharging assembly a2, the third pressure sensor 153 and the third speed sensor 157 are both located at the side portion of the supporting end cover 14 between the second stage supercharging assembly a2 and the third stage supercharging assembly a3, and the fourth pressure sensor 154 and the fourth speed sensor 158 are both located at the side portion of the upper end supporting end cover 14 of the third stage supercharging assembly a3, so as to improve accuracy of measurement results.
As shown in fig. 1 and 7-9, the buffer assembly 2 includes an annular buffer seat 21, an annular steel support 22, an annular steel pad 23, an annular buffer cavity 24, a buffer spring 25 and a rubber gasket 26, wherein the annular buffer cavity 24 is arranged in the annular buffer seat 21, and a plurality of buffer springs 25 are arranged along the annular direction of the annular buffer cavity 24 to play a role in buffering, in this embodiment, the annular buffer seat 21 is composed of a cylindrical buffer inner side steel plate 211, a cylindrical buffer outer side steel plate 212, an annular buffer bottom plate 213 and an annular steel clamping plate 214, an annular notch communicated with the annular buffer cavity 24 is formed in the annular steel clamping plate 214, the size of the annular notch is matched with the size of the annular steel support 22, the annular notch can play a role in guiding the annular steel support 22, one end of the annular steel support 22 is connected with the support end cover 14, the other end of the annular steel support 22 passes through the annular notch to extend into the annular buffer cavity 24 and is connected with the annular steel pad 23, the annular steel pad 23 is contacted with or connected with the buffer spring 25 in the corresponding annular buffer cavity 24, the annular buffer cavity 24 is matched with the size of the annular steel pad 23, the annular buffer cavity 24 plays a role in guiding the annular buffer cavity 24 to the annular steel support 23 to the annular steel support 22, and the annular steel support 22 can move outside the annular steel support 22. A rubber gasket 26 is arranged between the support end cover 14 and the annular buffer seat 21, and the rubber gasket 26 is sleeved outside the annular steel support 22, so that collision between the support end cover 14 and the annular buffer seat 21 can be prevented, and the annular steel support 22 can be guided.
The beneficial technical effects of this embodiment are:
(1) The initial pumping pressure of the high-rise building is reduced, the construction safety is ensured, the requirements on the pressure of pumping equipment and the strength of a conveying pipeline are simultaneously reduced, and the equipment cost investment is reduced;
(2) The pneumatic shaftless pumping multistage supercharging device can increase the pumping height of pumped concrete;
(3) The pneumatic shaftless pumping multistage supercharging device has large internal space and is beneficial to pumping concrete;
(4) The multistage supercharging assemblies connected in series can realize multiple supercharging.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the utility model as defined in the appended claims, and thus are not repeated herein.
Claims (7)
1. The utility model provides a pneumatic type shaftless pump of super high-rise pumping concrete pushes away multistage supercharging device which characterized in that: the pneumatic shaftless pump pushing multi-stage supercharging device comprises a multi-stage supercharging assembly and two buffer assemblies, wherein the supercharging assemblies are sequentially connected, and the supercharging assemblies at the first stage and the supercharging assemblies at the last stage are respectively connected with the two buffer assemblies; the supercharging assembly comprises a rotor assembly, a power assembly, a cylindrical protective cover and supporting end covers, wherein the rotor assembly is arranged in the cylindrical protective cover, and the supporting end covers are arranged at two ends of the rotor assembly and the power assembly; the cylindrical protective cover consists of a cylindrical protective cover outer plate and an annular protective cover plate, and the cylindrical protective cover outer plate is provided with an air inlet and an air outlet; the power assembly comprises a high-pressure air pump, an air pipe, a butt joint nut and a power assembly outer plate, wherein the air pipe is connected to the high-pressure air pump, the air pipe is communicated with the air inlet hole of the cylindrical protective cover outer plate through the butt joint nut, two sides of the power assembly outer plate are respectively connected with two support end covers, and air flow generated by the power assembly drives the rotor assembly to rotate.
2. The pneumatic shaftless pump-driven multistage supercharging device for pumping concrete in an ultra-high layer according to claim 1, wherein: the rotor assembly comprises a steel cylinder, annular sliding blocks, blades and counter-force blades, wherein the annular sliding blocks are arranged at two ends of the steel cylinder, the blades are arranged along the circumference of the inner wall of the steel cylinder, the counter-force blades are arranged along the circumference of the outer wall of the steel cylinder, and annular sliding grooves matched with the annular sliding blocks are formed in the cylindrical protective cover.
3. The pneumatic shaftless pump-driven multistage supercharging device for pumping concrete in an ultra-high layer according to claim 1, wherein: the pressure sensor and the speed sensor are arranged on the inner side of the support end cover, the pressure sensor is circumferentially arranged along the inner side of the support end cover, and each speed sensor is located between two adjacent pressure sensors.
4. The pneumatic shaftless pump-driven multistage supercharging device for pumping concrete in an ultra-high layer according to claim 1, wherein: the buffer assembly comprises an annular buffer seat, an annular buffer cavity arranged in the annular buffer seat, a plurality of buffer springs arranged along the annular direction of the annular buffer cavity, and an annular steel support with one end connected with the support end cover, wherein the other end of the annular steel support extends into the annular buffer cavity and is connected with an annular steel pad, and the annular steel pad is in contact with or connected with the buffer springs corresponding to the annular buffer cavity.
5. The pneumatic shaftless pumping multistage supercharging device for pumping concrete in super high-rise according to claim 4, wherein: and a rubber gasket is arranged between the support end cover and the annular buffer seat, and the rubber gasket is sleeved outside the annular steel support.
6. The pneumatic shaftless pumping multistage supercharging device for pumping concrete in super high-rise according to claim 4, wherein: the annular buffer seat is composed of a cylindrical buffer inner steel plate, a cylindrical buffer outer steel plate, an annular buffer bottom plate and an annular steel clamping plate, an annular notch communicated with the annular buffer cavity is formed in the annular steel clamping plate, the annular notch is wider than the annular buffer cavity, and the annular steel backing ring is wider than the annular notch.
7. The pneumatic shaftless pump-driven multistage supercharging device for pumping concrete in an ultra-high layer according to claim 1, wherein: the two buffer components are respectively connected with two connecting pipes, and one end of each connecting pipe is provided with threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323303592.8U CN221372939U (en) | 2023-12-05 | 2023-12-05 | Pneumatic shaftless pump pushing multistage supercharging device for super high-rise pumped concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323303592.8U CN221372939U (en) | 2023-12-05 | 2023-12-05 | Pneumatic shaftless pump pushing multistage supercharging device for super high-rise pumped concrete |
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| CN221372939U true CN221372939U (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202323303592.8U Active CN221372939U (en) | 2023-12-05 | 2023-12-05 | Pneumatic shaftless pump pushing multistage supercharging device for super high-rise pumped concrete |
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| CN (1) | CN221372939U (en) |
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- 2023-12-05 CN CN202323303592.8U patent/CN221372939U/en active Active
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