Concrete pumping unit and concrete pumping equipment

Abstract

The utility model provides a concrete pumping unit and concrete pumping equipment, the concrete pumping unit comprises a transition sleeve, a wear plate and a hopper, the transition sleeve is inserted in the hopper, the wear plate is fixedly connected with the hopper, the wear plate is provided with a runner hole, one end of the transition sleeve extends to the runner hole and is embedded in the wear plate, and the other end of the transition sleeve is inserted in the wear plate. A sealing groove is formed in the contact face of the transition sleeve and the glasses plate, and a sealing piece is arranged in the sealing groove. According to the concrete pumping unit and the concrete pumping equipment, the end part of the transition sleeve is embedded into the runner hole of the wear plate, so that the surfacing area of the wear plate is reduced, the surfacing abrasion degree is reduced, the welding deformation of the wear plate is greatly reduced, and the manufacturing of the wear plate and the reduction of the cost are facilitated; and meanwhile, the sealing groove is formed in the transition sleeve which is easier to process, so that the manufacturing difficulty and cost of the wear plate and the hopper are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete transportation, in particular to a concrete pumping unit and concrete pumping equipment. Background Art

[0002] Many machines will wear out some of their parts during operation, which will reduce the service life of these parts and require repair or replacement, which will increase costs and workload. Take concrete pumping equipment as an example. Figure 1-2 As shown, the main structure of the pumping unit of the concrete pumping equipment includes a cutting ring 1, a spectacle plate 2, a hopper 3, a transition sleeve 4 and a concrete cylinder 5. The cutting ring 1, the spectacle plate 2 and the hopper 3 are fixedly connected in sequence. The transition sleeve 4 is plugged into the hopper 3, and its two ends are respectively abutted against the spectacle plate 2 and the concrete cylinder 5. During the use of the concrete pumping equipment, the spectacle plate 2 (wear-resistant plate) is its key vulnerable component. Two flow channel holes are provided on its surface to connect with the two concrete cylinders 5. The most serious wear of the surfacing of the flow channel hole of the spectacle plate 2 is 10-15mm (A 1 B 1 ) In this section, the surfacing area covers the entire flow channel hole of the eyeglass plate 2. The surfacing area is large, and the eyeglass plate will produce obvious deformation, and the flatness needs to be repeatedly corrected during the manufacturing process.

[0003] At the same time, the eyeglass plate 2 and the hopper 3 are flatly fitted and assembled by bolts. In order to prevent water leakage between the eyeglass plate and the hopper when conveying concrete, sealing measures need to be taken between the two. At present, the common sealing method in the industry is to open two O-shaped sealing grooves 6 on the eyeglass plate 2 or the hopper 3, and place rubber sealing rings in the grooves.

[0004] However, there are disadvantages in adopting the above-mentioned sealing method. A sealing groove 6 is provided on the outer ring of the two flow channel holes on the surface of the eyeglass plate 2. Since the flatness requirement of the eyeglass plate 2 is very high, the flatness will be affected after the sealing groove 6 is processed, and the flatness of the eyeglass plate 2 needs to be repeatedly corrected. At the same time, the eyeglass plate 2 is a consumable part and needs to be replaced frequently. Each newly replaced eyeglass plate 2 is processed with the sealing groove 6, which increases the manufacturing difficulty of the eyeglass plate 2 and the cost of use for customers; processing two sealing grooves 6 on the hopper 3 does not require processing the sealing groove 6 on the eyeglass plate 2, but processing the sealing groove 6 on the hopper 3 requires a large boring machine to ensure accuracy, which is difficult to process. Utility Model Content

[0005] The utility model aims to provide a concrete pumping unit and concrete pumping equipment to solve the problems of large welding deformation of eyeglass plates, great difficulty in production and processing, and high production cost.

[0006] The utility model provides a concrete pumping unit, comprising a transition sleeve, a spectacle plate and a hopper, wherein the transition sleeve is plugged into the hopper, the spectacle plate is fixedly connected to the hopper, a flow channel hole is provided on the spectacle plate, one end of the transition sleeve extends to the flow channel hole and is embedded in the spectacle plate, a sealing groove is provided on the contact surface between the transition sleeve and the spectacle plate, and a sealing member is provided in the sealing groove.

[0007] In one embodiment of the utility model, the concrete pumping unit further comprises a concrete cylinder, which is located on a side of the hopper away from the eyeglass plate, the other end of the transition sleeve abuts against the concrete cylinder, and the transition sleeve is relatively fixedly connected to the concrete cylinder.

[0008] In one embodiment of the utility model, the eyeglass plate is also provided with a groove, the flow channel hole and the groove are coaxially arranged, one end of the flow channel hole extends to the end face of the eyeglass plate along the length direction of the transition sleeve, and the other end extends to the bottom of the groove along the length direction of the transition sleeve, the aperture of the flow channel hole is smaller than the groove width of the groove, one end of the transition sleeve extends into the groove, and the end face of the transition sleeve abuts against the bottom of the groove, the outer side surface of the transition sleeve abuts against the groove wall of the groove, and the sealing groove is opened on the outer side surface of the transition sleeve.

[0009] In an embodiment of the utility model, a clearance fit is adopted between the transition sleeve and the groove.

[0010] In an embodiment of the present invention, the depth of the flow channel hole is 10 mm to 15 mm, and the depth of the groove is 15 mm to 20 mm.

[0011] In an embodiment of the utility model, the concrete pumping unit further comprises a cutting ring, which is located on a side of the eyeglass plate away from the concrete cylinder, and the cutting ring is docked with the flow channel hole of the eyeglass plate to allow concrete to flow through.

[0012] In one embodiment of the utility model, the eyeglass plate is provided with a flow channel hole and a groove, the flow channel hole and the groove are coaxially arranged, one end of the flow channel hole extends to the end face of the eyeglass plate, and the other end extends to the bottom of the groove, the aperture of the flow channel hole is smaller than the groove width of the groove, one end of the transition sleeve extends into the groove, and the end face of the transition sleeve abuts against the bottom of the groove, the outer side surface of the transition sleeve abuts against the groove wall of the groove, and the sealing groove is opened on the end face of the transition sleeve.

[0013] In an embodiment of the present invention, the sealing element is an O-ring.

[0014] In an embodiment of the present invention, the depth of the sealing groove is 5 mm to 7 mm, and the width of the sealing groove is 9 mm to 11 mm.

[0015] The utility model also provides a concrete pumping device, comprising the concrete pumping unit as described above.

[0016] In the concrete pumping unit and concrete pumping equipment of the utility model, by embedding the end of the transition sleeve into the flow channel hole of the eyeglass plate, the welding area of ​​the eyeglass plate is greatly reduced, and the overall welding deformation of the eyeglass plate is greatly reduced, which is beneficial to the production of the eyeglass plate and the reduction of the cost; at the same time, the sealing groove is opened on the transition sleeve which is easier to process, reducing the manufacturing difficulty and cost of the eyeglass plate and the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic structural diagram of a concrete pumping unit according to an embodiment of the prior art.

[0018] Figure 2 The figure is a schematic structural diagram of a concrete pumping unit according to another embodiment of the prior art.

[0019] Figure 3 It is a partial structural schematic diagram of a concrete pumping unit according to the first embodiment of the utility model.

[0020] Figure 4 for Figure 3 Enlarged schematic diagram of point D in the middle.

[0021] Figure 5 The figure is a schematic structural diagram of a concrete pumping unit according to an embodiment of the utility model.

[0022] Figure 6 for Figure 3 Schematic diagram of the structure of the glasses plate of the concrete pumping unit shown.

[0023] Figure 7 It is a partial structural schematic diagram of a concrete pumping unit according to the second embodiment of the utility model.

[0024] Figure 8 for Figure 7 Enlarged schematic diagram of point E in the middle. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] First embodiment

[0027] The utility model provides a concrete pumping unit, such as Figure 3-4As shown, a concrete pumping unit of an embodiment includes a transition sleeve 11, a spectacle plate 12 and a hopper 13. A mounting through hole is provided on the hopper 13, and the transition sleeve 11 is plugged into the hopper 13, that is, the transition sleeve 11 is inserted into the mounting through hole. The spectacle plate 12 is fixedly connected to the hopper 13 by fasteners. The spectacle plate 12 is provided with a flow channel hole 121 for concrete circulation, one end of the transition sleeve 11 extends to the flow channel hole 121 along the length direction of the transition sleeve 11, and is embedded in the spectacle plate 12 and connected with the spectacle plate 12 by snapping, and a sealing groove 111 is provided on the circumferential side surface where the transition sleeve 11 contacts the spectacle plate 12, and a sealing member for sealing is placed in the sealing groove 111.

[0028] In the concrete pumping unit of the present invention, by embedding the end of the transition sleeve 11 into the flow channel hole 121 of the eyeglass plate 12, the surfacing area of ​​the eyeglass plate 12 is greatly reduced, and the overall welding deformation of the eyeglass plate 12 is greatly reduced, which is beneficial to the production of the eyeglass plate 12 and the reduction of the cost; at the same time, the sealing groove 111 is opened on the transition sleeve 11 which is easier to process, reducing the manufacturing difficulty and cost of the eyeglass plate 12 and the hopper 13.

[0029] The transition sleeve 11 in this embodiment passes through the through hole opened on the hopper 13, and the two ends thereof abut against the eyeglass plate 12 and the concrete cylinder 14 respectively. The concrete in the concrete cylinder 14 can pass through the transition sleeve 11 and continue to flow.

[0030] In this embodiment, the concrete pumping unit further includes a concrete cylinder 14, which is located on the side of the hopper 13 away from the eyeglass plate 12, and the other end of the transition sleeve 11 abuts against the concrete cylinder 14, and the transition sleeve 11 is relatively fixedly connected to the concrete cylinder 14. Specifically, the transition sleeve 11 is a hollow structure with a through hole in the middle for concrete to pass through. The eyeglass plate 12 and the hopper 13 are fixedly connected by fastener bolts, and the two ends of the transition sleeve 11 abut against the eyeglass plate 12 and the concrete cylinder 14 respectively, and the transition sleeve 11 is stuck as a whole, thereby maintaining a relatively fixed connection with the eyeglass plate 12, the hopper 13 and the concrete cylinder 14.

[0031] like Figure 5 As shown, the concrete pumping unit of this embodiment includes a pumping drive assembly, a water tank 17, a hopper 13, a distribution assembly 21 and a discharge pipe 22. The pumping drive assembly includes a concrete cylinder 14 and a pumping oil cylinder 18. When performing concrete delivery, the water tank 17 is a supporting component connecting the pumping oil cylinder and the concrete cylinder, which is used to store water and has the functions of cleaning and adjusting the temperature of concrete, cooling the piston, etc. The hopper 13 stores concrete to be pumped, and the distribution assembly 21 is used to connect the pumping drive assembly with the discharge pipe 22 to deliver the concrete in the hopper 13 into the discharge pipe 22.

[0032] The pumping drive assembly includes two concrete cylinders 14, pistons 141 disposed in the two concrete cylinders 14, and two pumping oil cylinders 18 that work alternately. A water tank 17 is disposed between the two pumping oil cylinders 18 and the two concrete cylinders 14. Both pumping oil cylinders 18 are powered by a hydraulic system 19. The piston rod 181 in the pumping oil cylinder 18 is connected to the piston 141 in the corresponding concrete cylinder 14 to drive the piston 141 to perform piston movement in the concrete cylinder 14. One end of the two concrete cylinders 14 away from the water tank 17 is connected to the hopper 13. The distribution assembly 21 is used to make the discharge pipe 22 alternately connected to the two concrete cylinders 14. Specifically, the distribution assembly 21 includes a yaw mechanism and a distribution valve. The yaw mechanism is disposed on the hopper 13 and connected to the distribution valve. The distribution valve is disposed in the hopper 13. The yaw mechanism is used to drive the distribution valve to switch between the two concrete cylinders 14 so that the distribution valve is alternately connected to the two concrete cylinders 14. Furthermore, a spectacle plate 12 is installed on one side of the hopper 13 corresponding to the two concrete cylinders 14, a cutting ring 15 is provided at one end of the distribution valve close to the concrete cylinder 14, and the end of the distribution valve away from the concrete cylinder 14 is connected to the discharge pipe 22. The cooperation between the spectacle plate 12 and the cutting ring 15 has the function of sealing and wear resistance.

[0033] In this embodiment, Figure 6 As shown, the eyeglass plate 12 is also provided with a groove 122, the flow channel hole 121 and the groove 122 are coaxially arranged, and the axis of the flow channel hole 121 and the axis of the groove 122 are both parallel to the length direction of the transition sleeve 11. The flow channel hole 121 is used for concrete to flow through. One end of the flow channel hole 121 extends to the end face of the eyeglass plate 12 along the length direction of the transition sleeve 11, and the other end extends to the bottom of the groove 122 along the length direction of the transition sleeve 11. The aperture of the flow channel hole 121 is smaller than the groove width of the groove 122. One end of the transition sleeve 11 extends into the groove 122, and the end face of the transition sleeve 11 abuts against the bottom of the groove 122, the outer side surface of the transition sleeve 11 abuts against the groove wall of the groove 122, and the sealing groove 111 is provided on the outer side surface of the transition sleeve 11.

[0034] It should be noted that the plane where the bottom of the groove 122 is located is perpendicular to the length direction of the transition sleeve 11. Figure 3 In the structure shown, the diameter of the flow channel hole 121 is R, and the width of the groove 122 is L.

[0035] Specifically, the flow channel hole 121 and the groove 122 as a whole form a stepped hole. The transition sleeve 11 does not need to be installed through fasteners during its installation. The end of the transition sleeve 11 extends into the groove 122 and abuts against the bottom of the groove. The eyeglass plate 12 and the hopper 13 are connected as a whole by bolts and the transition sleeve 11 is clamped between the eyeglass plate 12 and the concrete cylinder 14, which facilitates the installation and disassembly of the transition sleeve 11.

[0036] The sealing groove 111 is opened on the transition sleeve 11, so that during the life cycle of the concrete pumping equipment, the sealing groove 111 between the eyeglass plate 12 and the hopper 13 only needs to be processed once, and the eyeglass plate 12 replaced subsequently does not need to be processed with the sealing groove 111, which reduces the customer's use cost and reduces the processing difficulty.

[0037] In this embodiment, a clearance fit is adopted between the transition sleeve 11 and the groove 122 , so when the eyeglass plate 12 fails and needs to be replaced, the failed eyeglass plate 12 can be easily disassembled.

[0038] In this embodiment, the depth of the flow channel hole 121 is 10 mm to 15 mm, and the depth of the groove 122 is 15 mm to 20 mm. It can be understood that those skilled in the art can set the depth of the flow channel hole 121 to 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, etc. according to actual conditions, and this is not a sole limitation. Those skilled in the art can set the depth of the groove 122 to 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, etc. according to actual conditions, and this is not a sole limitation.

[0039] In this embodiment, the concrete pumping unit further includes a cutting ring 15 , which is located on a side of the eyeglass plate 12 away from the concrete cylinder 14 , and the cutting ring 15 is connected to the flow channel hole 121 of the eyeglass plate 12 for concrete to flow through.

[0040] The cutting ring 15 is a wear-resistant sleeve installed at the end of the feed port of the distribution valve and fits with the working surface of the eyeglass plate to form a sliding pair and a sealing pair. During the pumping operation, the distribution valve swings, driving the cutting ring to quickly cut off the concrete column, so that the inner hole of the cutting ring is alternately connected with the two inner holes of the eyeglass plate. The cutting ring 15 has the characteristics of wear resistance, high pressure resistance and corrosion resistance, and can maintain good sealing performance under high pressure, while ensuring smooth transportation of concrete.

[0041] It should be noted that the eyeglass plate 12 is fixedly mounted on the rear wall of the hopper 13 by fasteners, and the hopper 13 in the illustrated structure is the rear wall of the hopper. The transition sleeve 11 is plugged into the rear wall, and the eyeglass plate and the cutting ring 15 are located in the hopper 13. The cutting ring 15 is fixedly connected to the distribution valve, and two flow holes 121 are provided on the eyeglass plate 12, and the transition sleeve 11 and the concrete cylinder 14 are respectively provided at the two flow holes 121. The cutting ring 15 is connected to the two flow holes in sequence under the drive of the distribution valve. When the distribution valve drives the cutting ring 15 to dock with one of the flow holes 121, the concrete in the concrete cylinder 14 corresponding to the flow hole 121 is sent out through the flow hole 121, the cutting ring 15 and the distribution valve, and at this time, the concrete in the hopper 13 enters the corresponding concrete cylinder 14 from the other flow hole 121; the distribution valve drives the cutting ring 15 to dock with the other flow hole 121, and the concrete in the corresponding concrete cylinder 14 is sent out through the flow hole 121, the cutting ring 15 and the distribution valve. Then repeat the above steps in sequence to realize the pumping of concrete.

[0042] The cutting ring 15 generates shear force on the eyeglass plate 12 when it is driven by the distribution valve to dock with the flow hole 121, causing surfacing impact wear on the inner wall of the flow hole 121, and the length of the surfacing area is the depth of the flow hole 121. In this embodiment, the transition sleeve 11 is extended to the flow hole 121 and embedded in the eyeglass plate 12, and the depth of the flow hole 121 is reduced, that is, the surfacing area of ​​the eyeglass plate 12 is reduced, so that the overall welding deformation of the eyeglass plate 12 is reduced, which is beneficial to the production of the eyeglass plate 12 and reduces the cost.

[0043] After long-term and large-scale failure analysis of the eyeglass plate 12, it was found that the impact wear of the flow channel hole 121 of the eyeglass plate 12 was most serious in the AB section (the depth of the flow channel hole 121) near the plate ring cutting surface port of the cutting ring 15 due to the shear force of the cutting ring 15, and the length of the AB section was 10mm to 15mm. The shear impact of the BC section (the depth of the groove 122) was very small, and it was only washed by the concrete, and the wear was very small. The material of the transition sleeve 11 can be Gr15.

[0044] The transition sleeve 11 is relatively small in size, and the sealing groove 111 can be processed to the outer surface of the transition sleeve 11 using an ordinary horizontal lathe, which is simple to process. Moreover, the transition sleeve 11 is not subject to shear impact from the cutting ring 15, and is only a concrete pot material, so it is very durable and needs to be replaced very rarely. In addition, the surfacing area in the flow channel hole 121 of the eyeglass plate 12 is greatly reduced, the welding deformation is greatly reduced, and the manufacturing cost of the eyeglass plate 12 is reduced. During the life cycle of the concrete pumping equipment, all eyeglass plates 12 do not need to be processed with the sealing groove 111, which reduces the customer's use cost.

[0045] In this embodiment, according to the different thicknesses of the glasses plate 12, the length of the BC section (the depth of the groove 122) of the transition sleeve 11 is 15 mm to 20 mm. Corresponding to the groove 122 of the glasses plate 12, the BC section is processed in advance, and a clearance fit is formed between the processed size and the outer diameter size of the transition sleeve 11, which is convenient for disassembly of the failed glasses plate 12. The BC section of the transition sleeve 11 is processed by turning, and a sealing groove is formed on the circumferential outer side of the groove wall that abuts against the groove 122, and an O-ring is embedded in the sealing groove.

[0046] Specifically, the depth of the sealing groove 111 is 5mm to 7mm, and the width of the sealing groove 111 is 9mm to 11mm. The depth of the sealing groove 111 in this embodiment is 6mm, and the width of the sealing groove 111 is 10mm. It can be understood that those skilled in the art can set the depth of the sealing groove 111 to 5.2mm, 5.4mm, 5.6mm, 5.9mm, 6.2mm, 6.5mm, 6.8mm, etc. according to actual conditions, and this is not limited here; those skilled in the art can set the width of the sealing groove 111 to 9.2mm, 9.4mm, 9.8mm, 10.2mm, 10.5mm, 10.7mm, 10.9mm, etc. according to actual conditions, and this is not limited here.

[0047] Second embodiment

[0048] The concrete pumping unit in this embodiment is similar in structure to the concrete pumping unit in the first embodiment, except for the position of the sealing groove 111. The sealing groove 111 in this embodiment is provided on the end surface of the transition sleeve 11.

[0049] like Figure 7-8 As shown, the concrete pumping unit of this embodiment includes a transition sleeve 11, a spectacle plate 12 and a hopper 13. A mounting through hole is provided on the hopper 13, and the transition sleeve 11 is plugged into the hopper 13, that is, the transition sleeve 11 is inserted into the mounting through hole. The spectacle plate 12 is fixedly connected to the hopper 13 by fasteners. The spectacle plate 12 is provided with a flow channel hole 121 for concrete circulation, one end of the transition sleeve 11 extends to the flow channel hole 121 along the length direction of the transition sleeve 11, and is embedded in the spectacle plate 12 and connected with the spectacle plate 12 by snapping, and a sealing groove 111 is provided on the end surface where the transition sleeve 11 contacts the spectacle plate 12, and a sealing member for sealing is placed in the sealing groove 111.

[0050] Specifically, the spectacle plate 12 is also provided with a groove 122, the flow channel hole 121 and the groove 122 are coaxially arranged, and the axis of the flow channel hole 121 and the axis of the groove 122 are both parallel to the length direction of the transition sleeve 11. One end of the flow channel hole 121 extends to the end face of the spectacle plate 12 along the length direction of the transition sleeve 11, and the other end extends to the bottom of the groove 122 along the length direction of the transition sleeve 11. The aperture of the flow channel hole 121 is smaller than the groove width of the groove 122. One end of the transition sleeve 11 extends into the groove 122, and the end face of the transition sleeve 11 abuts against the bottom of the groove 122, and the outer side face of the transition sleeve 11 abuts against the groove wall of the groove 122. The sealing groove 111 is provided at the end face of the transition sleeve 11, and the other end of the transition sleeve 11 abuts against the concrete cylinder 14.

[0051] The sealing groove 111 formed on the end surface of the transition sleeve 11 can be processed by a common lathe, which is simple and convenient.

[0052] The utility model also provides a concrete pumping device, comprising the concrete pumping unit as mentioned above.

[0053] In this document, unless otherwise specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0054] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description. Therefore, they should not be understood as limitations on the present invention.

[0055] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0056] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A concrete pumping unit, characterized in that: The invention comprises a transition sleeve (11), a spectacle plate (12) and a hopper (13); the transition sleeve (11) is plugged into the hopper (13); the spectacle plate (12) is fixedly connected to the hopper (13); the spectacle plate (12) is provided with a flow channel hole (121); one end of the transition sleeve (11) extends to the flow channel hole (121) and is embedded in the spectacle plate (12); a sealing groove (111) is provided on the contact surface between the transition sleeve (11) and the spectacle plate (12); a sealing member is provided in the sealing groove (111).

2. The concrete pumping unit according to claim 1, characterized in that: The concrete pumping unit further comprises a concrete cylinder (14), wherein the concrete cylinder (14) is located on a side of the hopper (13) away from the eyeglass plate (12), the other end of the transition sleeve (11) abuts against the concrete cylinder (14), and the transition sleeve (11) and the concrete cylinder (14) are relatively fixedly connected.

3. The concrete pumping unit according to claim 2, characterized in that: The eyeglass plate (12) is further provided with a groove (122); the flow channel hole (121) and the groove (122) are coaxially arranged; one end of the flow channel hole (121) extends along the length direction of the transition sleeve (11) to the end face of the eyeglass plate (12); and the other end extends along the length direction of the transition sleeve (11) to the bottom of the groove (122); the aperture of the flow channel hole (121) is smaller than the groove width of the groove (122); one end of the transition sleeve (11) extends into the groove (122), and the end face of the transition sleeve (11) abuts against the bottom of the groove (122); the outer side face of the transition sleeve (11) abuts against the groove wall of the groove (122); and the sealing groove (111) is provided on the outer side face of the transition sleeve (11).

4. The concrete pumping unit according to claim 3, characterized in that: A clearance fit is adopted between the transition sleeve (11) and the groove (122).

5. The concrete pumping unit according to claim 4, characterized in that: The depth of the flow channel hole (121) is 10 mm to 15 mm, and the depth of the groove (122) is 15 mm to 20 mm.

6. The concrete pumping unit according to claim 2, characterized in that: The concrete pumping unit further comprises a cutting ring (15), the cutting ring (15) being located on a side of the eyeglass plate (12) away from the concrete cylinder (14), and the cutting ring (15) being connected to the flow channel hole (121) of the eyeglass plate (12) to allow concrete to flow through.

7. The concrete pumping unit according to claim 2, characterized in that: The eyeglass plate (12) is provided with a flow channel hole (121) and a groove (122), the flow channel hole (121) and the groove (122) are coaxially arranged, one end of the flow channel hole (121) extends to the end face of the eyeglass plate (12), and the other end extends to the bottom of the groove (122), the aperture of the flow channel hole (121) is smaller than the groove width of the groove (122), one end of the transition sleeve (11) extends into the groove (122), and the end face of the transition sleeve (11) abuts against the bottom of the groove (122), the outer side face of the transition sleeve (11) abuts against the groove wall of the groove (122), and the sealing groove (111) is provided on the end face of the transition sleeve (11).

8. The concrete pumping unit according to claim 1, characterized in that: The sealing element is an O-ring.

9. The concrete pumping unit according to claim 1, characterized in that: The depth of the sealing groove (111) is 5 mm to 7 mm, and the width of the sealing groove (111) is 9 mm to 11 mm.

10. A concrete pumping equipment, characterized in that: The method comprises a concrete pumping unit as claimed in any one of claims 1 to 9.

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