Hoisting and fixing device for submersible pump volute

Abstract

The utility model provides a hoisting fixing device for a submersible pump volute, which relates to the technical field of hoisting equipment and comprises a connecting seat and a supporting plate. A hoisting through hole is formed in the connecting seat; the supporting plate is connected to the connecting base and provided with a plurality of mounting holes, and the mounting holes are formed in the periphery of the hoisting through hole in a surrounding mode at intervals with the hoisting through hole as the center on the projection plane perpendicular to the supporting plate. By means of the hoisting fixing device, in the process that hoisting equipment hoists the submersible pump volute, due to the fact that the hoisting through holes in the hoisting fixing device are located in the center positions of the multiple installation holes, the submersible pump volute can be kept balanced, it can be guaranteed that the submersible pump volute is stably hoisted, and meanwhile the hoisting efficiency is improved. And the vertical guide rod connected with the volute can be prevented from being snapped, and potential safety hazards can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a hoisting and fixing device for a volute of a submersible pump. Background Art

[0002] A submersible pump can extract groundwater or drain accumulated water, and it has a wide range of applications in the fields of life and industry. For example, submersible pumps can be used for industrial drainage, sewage pumping, groundwater extraction, water feature fountains, geothermal water utilization, etc. Submersible pumps can especially be used in waterworks, sewage treatment plants, and sewage pumping stations. Some existing submersible pumps include a volute and a motor. When in use, the volute is placed underwater. After the flowing water enters the volute, it can be stationary, and water pressure can be formed at the water outlet. Then, when the motor operates, it can suck out the water at the water outlet, thereby realizing the transportation of water. Among them, the volute can reduce the fluctuations generated by the water flow, keep the water flow stable, enable the water to be stably sucked, and thus extend the service life of the water pump.

[0003] When a submersible pump fails and cannot work properly, it is necessary to completely disassemble the motor and the volute, and then lift them out of the working water area separately for maintenance. The volute is usually fixed underwater by means of guide rods and a base. The commonly used hoisting method at present is to use iron chains or ropes to tie the volute. Then, the traveling crane pulls the iron chain or rope to lift the volute out of the water. However, after tying the volute with an iron chain or a rope, it is easy to loosen and lose balance when lifting the volute upward, and it cannot ensure that the volute is lifted out smoothly. Moreover, the vertical guide rod connected to the volute is also easy to be pulled off, causing economic losses. Summary of the Utility Model

[0004] The utility model provides a hoisting and fixing device for a volute of a submersible pump, which is used to solve the defects in the prior art that when using an iron chain or a rope to tie the volute to lift it out of the water, it is easy to loosen and lose balance, and it cannot ensure that the volute is lifted out smoothly. Moreover, the vertical guide rod connected to the volute is also easy to be pulled off, causing economic losses.

[0005] The utility model provides a hoisting and fixing device for a volute of a submersible pump, including:

[0006] A connecting seat, the connecting seat is provided with a hoisting through hole;

[0007] A support plate, the support plate is connected to the connecting seat, the support plate is provided with a plurality of mounting holes, and the plurality of mounting holes are spaced around the hoisting through hole on the projection plane perpendicular to the support plate and are arranged on the outer periphery of the hoisting through hole.

[0008] According to a lifting and fixing device provided by the utility model, the support plate includes a plurality of extended support plates, one end of each of the extended support plates is connected to the bottom of the connecting seat, and the other end extends in a direction away from the lifting through hole with the position of the lifting through hole as the center on a projection surface perpendicular to the support plate, and each of the extended support plates is respectively provided with the mounting hole.

[0009] According to a hoisting and fixing device provided by the utility model, the number of the extended support plates is four, and the four extended support plates form a cross-shaped support.

[0010] According to a hoisting and fixing device provided by the utility model, the mounting hole is constructed as a long through hole, one end of the long through hole is close to the hoisting through hole, and the other end extends toward the outside away from the hoisting through hole.

[0011] According to a lifting and fixing device provided by the utility model, the connecting seat includes a connecting plate and two rib plates, the connecting plate and the two rib plates are vertically connected to the support plate, the two rib plates are respectively arranged on both sides of the connecting plate, and the lifting through hole is arranged on the connecting plate.

[0012] According to a hoisting and fixing device provided by the utility model, the connecting seat is further provided with an additional through hole, and the additional through hole is located on the side of the hoisting through hole on a projection plane perpendicular to the support plate.

[0013] According to a hoisting and fixing device provided by the utility model, the number of the additional through holes is multiple, and the multiple additional through holes are sequentially spaced apart on a projection surface perpendicular to the support plate in a direction away from the hoisting through holes.

[0014] According to a lifting and fixing device provided by the utility model, the support plate includes two fan-shaped plates, both of the two fan-shaped plates have fan-shaped edges, the two fan-shaped plates are connected to the bottom of the connecting seat at one end away from the fan-shaped edge at the same time, the two fan-shaped plates have one end of the fan-shaped edge far away from each other, and each of the fan-shaped plates is provided with the mounting hole.

[0015] According to a hoisting and fixing device provided by the utility model, the central angles corresponding to the two sector plates are both greater than 90°, and the number of the mounting holes on each sector plate is at least two.

[0016] According to a lifting and fixing device provided by the utility model, each of the fan-shaped plates is also provided with an additional mounting hole, wherein the additional mounting hole is located between two adjacent mounting holes, and the mounting hole and the additional mounting hole are both constructed as long through holes, wherein one end of the long through hole is close to the lifting through hole, and the other end extends toward the outside away from the lifting through hole.

[0017] The hoisting and fixing device provided by the utility model includes a connecting seat and a supporting plate. The hoisting through hole on the hoisting and fixing device is located at the central position of a plurality of mounting holes, which can keep the volute of the submersible pump balanced during the hoisting process by the hoisting equipment, ensure that the volute of the submersible pump is hoisted smoothly, and at the same time, avoid the vertical guide rod connected to the volute from being broken, reducing potential safety hazards.

[0018] Compared with the traditional method of fixing the volute of the submersible pump with iron chains or ropes, in the utility model, it only needs to align the mounting holes on the supporting plate with the bolt holes on the joint surface of the volute of the submersible pump, and then fix the two with bolts. The operation is simple, time-saving and labor-saving, and can ensure the balance of the center of gravity, without damaging the equipment, and is safer, more convenient and more economical than the traditional hoisting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of a hoisting and fixing device for a volute of a submersible pump according to an embodiment of the present utility model.

[0021] Figure 2 is Figure 1 a schematic structural diagram of another perspective of the hoisting and fixing device for a volute of a submersible pump shown in

[0022] Figure 3 is Figure 1 a schematic structural diagram of another perspective of the hoisting and fixing device for a volute of a submersible pump shown in

[0023] Figure 4 is a schematic structural diagram of a hoisting and fixing device for a volute of a submersible pump according to another embodiment of the present utility model.

[0024] Figure 5 is Figure 4 a schematic structural diagram of another perspective of the hoisting and fixing device for a volute of a submersible pump shown in

[0025] Figure 6 is Figure 4 a schematic structural diagram of another perspective of the hoisting and fixing device for a volute of a submersible pump shown in

[0026] Figure 7It is a schematic structural view of a hoisting and fixing device for a submersible pump volute according to another embodiment of the present utility model.

[0027] Figure 8 is Figure 7 a schematic structural view of another perspective of the hoisting and fixing device for a submersible pump volute shown in

[0028] Figure 9 is Figure 7 a schematic structural view of yet another perspective of the hoisting and fixing device for a submersible pump volute shown in

[0029] Reference numerals:

[0030] 100, connecting seat; 101, hoisting through-hole; 102, additional through-hole; 110, connecting plate; 120, rib plate; 200, support plate; 201, mounting hole; 202, additional mounting hole; 210, extending support plate; 220, sector plate. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0032] In one embodiment according to the present utility model, a hoisting and fixing device for a submersible pump volute is provided. The hoisting and fixing device includes a connecting seat and a support plate that are connected to each other. The connecting seat is provided with a hoisting through-hole, and the support plate is provided with a plurality of mounting holes. The hoisting through-hole is located at the center position of the plurality of mounting holes. During use, the support plate can be connected to the submersible pump volute by means of the mounting holes, and the connecting seat can be connected to an external hoisting device by means of the hoisting through-hole. Thereafter, the hoisting device can use the hoisting and fixing device to lift the submersible pump volute out of the water. Moreover, since the hoisting through-hole is located at the center position of the plurality of mounting holes, the submersible pump volute can be kept balanced during the hoisting process. The following further describes the hoisting and fixing device for a submersible pump volute in this embodiment with reference to Figures 1 to 9 shown.

[0033] Specifically, as Figures 1 to 3 shown, the hoisting and fixing device for a submersible pump volute in this embodiment includes: a connecting seat 100 and a support plate 200.

[0034] The connecting base 100 is provided with a hoisting through-hole 101; the support plate 200 is connected to the connecting base 100, the support plate 200 is provided with a plurality of mounting holes 201, and the plurality of mounting holes 201 are spaced apart and circumferentially arranged around the hoisting through-hole 101 on the projection plane perpendicular to the support plate 200 and outside the hoisting through-hole 101 with the hoisting through-hole 101 as the center.

[0035] Exemplarily, the connecting base 100 can be made of a metal material with sufficient strength. For example, the connecting base 100 can be made of 45# steel. The connecting base 100 can be in a flat plate structure or a columnar structure. The connecting base 100 is provided with a hoisting through-hole 101, and an external iron chain or a rope of a hoisting device can be connected to the hoisting through-hole 101.

[0036] Exemplarily, the support plate 200 can also be made of a metal material with sufficient strength. For example, the support plate 200 can also be made of 45# steel. The support plate 200 can be in a flat plate structure with a certain thickness. The support plate 200 is fixedly connected to the bottom of the connecting base 100. For example, the connecting base 100 can be fixedly connected to one side in the thickness direction of the support plate 200 by welding or by means of structures such as bolts. In this embodiment, the support plate 200 and the connecting base 100 are fixedly connected by welding.

[0037] The support plate 200 is provided with a plurality of mounting holes 201, and the plurality of mounting holes 201 can be used to connect the volute of the submersible pump. Specifically, on the projection plane perpendicular to the support plate 200, that is, on the projection plane in the thickness direction of the support plate 200, the plurality of mounting holes 201 are spaced apart and circumferentially arranged around the position where the hoisting through-hole 101 is located and outside the hoisting through-hole 101. For example, as Figure 1 and Figure 2 shown, the number of the mounting holes 201 is four, and the four mounting holes 201 are evenly arranged around the hoisting through-hole 101 at intervals of 90°.

[0038] In the related art, the submersible pump includes a volute of the submersible pump and a motor. The joint surface where the volute of the submersible pump is connected to the motor is in a circular ring shape or a regular hexagon shape, etc. A plurality of bolt holes are provided on the joint surface, and the plurality of bolt holes are sequentially arranged at intervals along the extending direction of the joint surface. For example, some circular joint surfaces are sequentially and equidistantly provided with eight, twelve or twenty bolt holes at equal intervals, and some regular hexagon joint surfaces are sequentially and equidistantly provided with six bolt holes at equal intervals.

[0039] In actual use, when it is necessary to lift the volute of the submersible pump with the lifting and fixing device in this embodiment, the end face of the support plate 200 facing away from the connection seat 100 can be attached to the connection surface of the volute of the submersible pump. At the same time, the angle of the support plate 200 is adjusted so that the mounting holes 201 on the support plate 200 are aligned with the positions of the bolt holes on the connection surface. Then, bolts are used to pass through the mounting holes 201 and threadedly connect with the bolt holes on the connection surface, thereby fixing the support plate 200 to the volute of the submersible pump. After that, an external iron chain or a rope of a lifting device can be connected to the lifting through hole 101. Finally, the external lifting device can lift the volute of the submersible pump.

[0040] Thus, with the help of the lifting and fixing device in this embodiment, the lifting device can lift the volute of the submersible pump. Moreover, since the lifting through hole 101 on the lifting and fixing device is located at the center of the multiple mounting holes 201, the volute of the submersible pump can be kept balanced during the lifting process, ensuring that the volute of the submersible pump can be lifted smoothly. At the same time, it can also prevent the vertical guide rod connected to the volute from being broken, reducing potential safety hazards.

[0041] Compared with the traditional method of fixing the volute of the submersible pump with an iron chain or a rope, in this embodiment, it only needs to align the mounting holes 201 on the support plate 200 with the bolt holes on the connection surface of the volute of the submersible pump, and then fix the two with bolts. The operation is simple, time-saving and labor-saving, and can ensure the balance of the center of gravity without damaging the equipment, which is safer, more convenient and more economical than the traditional lifting process.

[0042] Further, in one embodiment, as Figure 1 shown, the support plate 200 includes a plurality of extending support plates 210. One ends of the plurality of extending support plates 210 are connected to the bottom of the connection seat 100, and the other ends extend away from the position where the lifting through hole 101 is located in the projection plane perpendicular to the support plate 200. Each extending support plate 210 is provided with a mounting hole 201.

[0043] It can be understood that in order to reduce the production and manufacturing cost and ensure the fixed connection with the volute of the submersible pump, the support plate 200 includes a plurality of extending support plates 210. For example, the number of the extending support plates 210 can be three, four or five. One ends of the plurality of extending support plates 210 are connected together and connected to the bottom of the connection seat 100, and the other ends of the plurality of extending support plates 210 extend radially away from the outside of the lifting through hole 101. For example, in the projection plane in the thickness direction of the support plate 200, the ends of the plurality of extending support plates 210 connected to each other are close to the position where the lifting through hole 101 is located, and the other ends extend outward in the direction away from the lifting through hole 101. Moreover, each extending support plate 210 is provided with a mounting hole 201.

[0044] In actual use, when it is necessary to lift the volute of the submersible pump with the lifting and fixing device in this embodiment, the mounting holes 201 on each extension support plate 210 can be made to correspond to the positions of the bolt holes on the connection surface of the volute of the submersible pump, and then the extension support plate 210 and the volute of the submersible pump can be fixed with bolts.

[0045] In a specific embodiment, as Figure 1 shown, the number of extension support plates 210 is four, and the four extension support plates 210 form a cross-shaped support.

[0046] It can be understood that on the projection plane in the thickness direction of the support plate 200, the four extension support plates 210 are evenly arranged around the lifting through hole 101 at intervals of 90°, and moreover, mounting holes 201 are respectively arranged on each extension support plate 210.

[0047] Thus, in actual lifting, when facing a volute of a submersible pump with eight, twelve or twenty bolt holes evenly arranged at equal intervals on the connection surface in sequence, the mounting holes 201 on the four extension support plates 210 can be made to correspond to the positions of the bolt holes on the connection surface of the volute of the submersible pump in sequence, so as to facilitate the subsequent lifting of the volute of the submersible pump.

[0048] Optionally, in order to ensure balanced force during the lifting process, the positions between all the mounting holes 201 and the lifting through hole 101 can be made the same. For example, in some embodiments, when the mounting hole 201 is configured as a circular through hole, the distances between all the mounting holes 201 and the lifting through hole 101 on the projection plane in the thickness direction of the support plate 200 can be made the same. At this time, after the bolts pass through the mounting holes 201 and are fixedly connected to the bolt holes on the connection surface of the volute of the submersible pump, it can be ensured that the lifting through hole 101 is located at the center of all the bolts, and balanced force can be achieved.

[0049] Moreover, in order to be able to connect multiple connection surfaces of different specifications, in some embodiments, on the projection plane in the thickness direction of the support plate 200, multiple columns of mounting holes 201 are arranged on the periphery of the lifting through hole 101, and the multiple columns of mounting holes 201 are arranged at intervals in the circumferential direction of the lifting through hole 101. Among them, each column of mounting holes 201 includes multiple mounting holes 201, and the multiple mounting holes 201 are arranged at intervals in the direction away from the lifting through hole 101.

[0050] Furthermore, in one embodiment, as Figure 1 shown, the mounting hole 201 is configured as a long strip through hole, one end of the long strip through hole is close to the lifting through hole 101, and the other end extends outward away from the lifting through hole 101.

[0051] Exemplarily, in the present embodiment, all the mounting holes 201 are configured as long strip through holes with a certain length. On the projection plane in the thickness direction of the support plate 200, one end of the length direction of all the mounting holes 201 is close to the hoisting through hole 101, and the other end of the length direction extends towards the outside away from the hoisting through hole 101.

[0052] Thus, in actual use, when facing submersible pump volutes of different specifications and sizes, even if the positions of the bolt holes on the connection surface are different, during hoisting, the long strip-shaped mounting holes 201 can be used to adjust the positions of the bolts to ensure that the bolts can effectively connect the support plate 200 to the submersible pump volute. Moreover, by adjusting the positions of the bolts, it can be ensured that the support plate 200 maintains a balanced force after being connected to the submersible pump volute.

[0053] Further, in one embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, the connecting seat 100 includes a connecting plate 110 and two rib plates 120. The connecting plate 110 and the two rib plates 120 are both vertically connected to the support plate 200. The two rib plates 120 are respectively arranged on both sides of the connecting plate 110, and the hoisting through hole 101 is arranged on the connecting plate 110.

[0054] Exemplarily, the connecting plate 110 can be vertically connected to the support plate 200 by welding. Moreover, the hoisting through hole 101 is arranged on the side of the connecting plate 110 away from the support plate 200. The two rib plates 120 are vertically connected to the opposite sides in the thickness direction of the connecting plate 110 by welding. At the same time, the two rib plates 120 are also vertically connected to the support plate 200 by welding.

[0055] Through the above setting method, it can be ensured that the entire hoisting and fixing device has sufficient structural strength.

[0056] In a specific implementation, as Figure 1 shown, the support plate 200 includes four extending support plates 210. The four extending support plates 210 form a cross-shaped support. At this time, in order to prevent the extending support plates 210 from being bent and deformed due to force during hoisting, both ends of the connecting plate 110 can be fixedly connected to two relatively arranged extending support plates 210 respectively, and both ends of the connecting plate 110 can extend to a position close to the mounting holes 201. Correspondingly, the two rib plates 120 are also respectively fixedly connected to the other two relatively arranged extending support plates 210, and the two ends of the two rib plates 120 away from each other can also extend to a position close to the mounting holes 201.

[0057] In actual use, after the hoisting and fixing device is fixedly connected to the volute of the submersible pump, the center of gravity position of a part of the volute of the submersible pump may not correspond to the position of the hoisting through hole 101 in the hoisting and fixing device. At this time, if the current hoisting through hole 101 is still used to hoist the volute of the submersible pump, the overall balance of the volute of the submersible pump cannot be guaranteed, and the multiple bolts connected to the joint surface may be unevenly stressed and are likely to fall off.

[0058] Based on this, in order to facilitate the hoisting of an asymmetric submersible pump volute with an offset center of gravity, as Figure 2 shown, in one embodiment, the connecting seat 100 is further provided with an additional through hole 102, and the additional through hole 102 is located on the side of the hoisting through hole 101 in the projection plane perpendicular to the support plate 200.

[0059] Exemplarily, in actual production and manufacturing, a bent metal column can be selected, and then both ends of the bent metal column are respectively fixed to the connecting seat 100. For example, both ends of the bent metal column are respectively fixed and arranged on the connecting plate 110 by welding. At this time, a through hole is formed on the connecting seat 100 by the metal column, and this through hole is the additional through hole 102.

[0060] Thus, in actual use, when it is necessary to hoist an asymmetric submersible pump volute with an offset center of gravity, the position of the support plate 200 can be adjusted so that the additional through hole 102 on the support plate 200 is directly above the center of gravity of the overall system formed after the combination of the asymmetric submersible pump volute and the hoisting and fixing device. For example, the additional through hole 102 is located at a position close to the water outlet direction of the submersible pump volute. Then, the hoisting equipment is connected to the additional through hole 102 to hoist the submersible pump.

[0061] It can be understood that in the above setting method, by providing the additional through hole 102, when hoisting an asymmetric submersible pump volute, it can be ensured that the volute of the submersible pump can maintain overall balance during the hoisting process, the volute of the submersible pump can be smoothly hoisted vertically, and it can be avoided that the vertical guide rod connected to the volute is broken during the separation process from the volute.

[0062] Optionally, in the projection plane perpendicular to the support plate 200, the additional through hole 102 can be located between the hoisting through hole 101 and one of the mounting holes 201.

[0063] Exemplarily, as Figure 1 and Figure 2 shown, the support plate 200 includes four extended support plates 210, and the four extended support plates 210 form a cross-shaped support. Moreover, both ends of the connecting plate 110 are respectively fixedly connected to two relatively arranged extended support plates 210. At this time, the additional through hole 102 can be arranged at one end of the connecting plate 110, and the additional through hole 102 is close to the position of one of the mounting holes 201.

[0064] Further, in one embodiment, Figure 4 , Figure 5 and Figure 6 As shown, there are multiple additional through holes 102 , and the multiple additional through holes 102 are sequentially spaced apart in a direction away from the lifting through hole 101 on a projection plane perpendicular to the support plate 200 .

[0065] It is understandable that the degree of offset of the center of gravity position of submersible pump volutes of different specifications may be different. At this time, when hoisting the submersible pump volute, it may not be possible to ensure that the additional through hole 102 on the support plate 200 is located directly above the center of gravity of the overall system formed by combining the asymmetric submersible pump volute with the hoisting fixture.

[0066] Based on this, in the present embodiment, the number of the additional through holes 102 is plural, and on the projection surface of the support plate 200 in the thickness direction, the plurality of additional through holes 102 are sequentially spaced apart in a direction away from the lifting through hole 101 .

[0067] Therefore, during the actual lifting process, the corresponding additional through hole 102 can be selected according to the actual center of gravity position of the submersible pump volute, and then the external lifting equipment can use the corresponding additional through hole 102 to lift the submersible pump volute.

[0068] As an implementation, during manufacturing, the connection seat 100 may include a horizontal plate and a vertical plate, and the horizontal plate is provided with a plurality of additional through holes 102, for example, five additional through holes 102 may be provided, and the plurality of additional through holes 102 are sequentially spaced along the length direction of the horizontal plate. One end of the horizontal plate is fixedly connected to the connection plate 110, and the other end extends toward a side away from the lifting through hole 101 and is fixedly connected to the vertical plate, and one end of the vertical plate away from the horizontal plate is fixedly connected to the support plate 200.

[0069] Thus, through the above arrangement, a plurality of additional through holes 102 can be arranged on the connection seat 100. Moreover, there is a sufficient gap between the transverse plate and the support plate 200, and no interference will be caused when the bolts are arranged in the mounting holes 201.

[0070] Further, in one embodiment, Figure 7 , Figure 8 and Figure 9 As shown, the support plate 200 includes two fan-shaped plates 220, both of which have fan-shaped edges. The ends of the two fan-shaped plates 220 that are away from the fan-shaped edges are simultaneously connected to the bottom of the connecting seat 100, and the ends of the two fan-shaped plates 220 with fan-shaped edges are far away from each other, and each fan-shaped plate 220 is provided with a mounting hole 201.

[0071] For example, Figure 7As shown, the support plate 200 may include two fan-shaped plates 220, each of which has a fan-shaped edge. The two fan-shaped plates 220 are connected to each other at one end away from their respective fan-shaped edges, and are also connected to the bottom of the connecting seat 100, and the other ends of the two fan-shaped plates 220 with the fan-shaped edges are away from each other.

[0072] In actual production, the two sector plates 220 can be manufactured by cutting the same metal plate.

[0073] In a specific embodiment, Figure 7 As shown, the central angles corresponding to the two sector plates 220 are both greater than 90°, and the number of the mounting holes 201 on each sector plate 220 is at least two.

[0074] Exemplarily, the number of mounting holes 201 may be four. On the projection surface of the thickness direction of the support plate 200, the four mounting holes 201 are evenly arranged at intervals of 90° around the lifting through hole 101, and two mounting holes 201 are respectively arranged on each fan-shaped plate 220.

[0075] It can be understood that by providing two sector plates 220 and providing two mounting holes 201 on each sector plate 220 , the structural strength of the support plate 200 can be effectively increased while ensuring that it can be connected to the volute of the submersible pump.

[0076] Moreover, as mentioned above, the connection base 100 includes a connection plate 110 and two ribs 120. At this time, the two ends of the connection base 100 can extend and connect to the two fan-shaped plates 220 respectively. In addition, in addition to the lifting through hole 101, the connection plate 110 can also be provided with a plurality of additional through holes 102, for example, Figure 7 and Figure 8 As shown, the plurality of additional through holes 102 are arranged in sequence and spaced apart in a direction away from the lifting through hole 101 .

[0077] In addition, in order to facilitate the installation of bolts in the installation holes 201 , an installation gap may be provided between the bottom of the connecting plate 110 and the supporting plate 200 .

[0078] Further, in one embodiment, if Figure 8 As shown, each fan-shaped plate 220 is also provided with an additional mounting hole 202, and the additional mounting hole 202 is located between two adjacent mounting holes 201. The mounting holes 201 and the additional mounting holes 202 are both constructed as long through holes, one end of the long through hole is close to the lifting through hole 101, and the other end extends toward the outside away from the lifting through hole 101.

[0079] Exemplarily, the number of additional mounting holes 202 can be multiple. In the thickness direction of the support plate 200, the multiple additional mounting holes 202 are sequentially arranged at intervals along the circumferential direction around the hoisting through hole 101.

[0080] Moreover, one of the additional mounting holes 202 can be arranged at the middle position between two adjacent mounting holes 201. At this time, even when facing a submersible pump volute with six bolt holes evenly spaced on the joint surface, the support plate 200 can be fixedly connected to the submersible pump volute.

[0081] In addition, to facilitate adjusting the position of the bolt in the mounting hole 201, both the mounting hole 201 and the additional mounting hole 202 can be configured as long through holes. For example, as Figure 7 and Figure 8 shown, one end of the long through hole is close to the hoisting through hole 101, and the other end extends towards the outside away from the hoisting through hole 101.

[0082] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A lifting and fixing device for a submersible pump volute, characterized in that: include: A connecting seat, wherein the connecting seat is provided with a lifting through hole; A support plate is connected to the connection seat, and the support plate is provided with a plurality of mounting holes, wherein the plurality of mounting holes are arranged around the outer periphery of the lifting through hole with the lifting through hole as the center on a projection plane perpendicular to the support plate.

2. The hoisting and fixing device for the volute of a submersible pump according to claim 1, characterized in that: The support plate includes a plurality of extension support plates, one end of each of which is connected to the bottom of the connecting seat, and the other end of each of which extends in a direction away from the lifting through hole with the position of the lifting through hole as the center on a projection surface perpendicular to the support plate, and each of the extension support plates is respectively provided with the mounting hole.

3. The hanging and fixing device for the volute of a submersible pump according to claim 2, characterized in that: The number of the extended support plates is four, and the four extended support plates form a cross-shaped support.

4. The hoisting and fixing device for the volute of a submersible pump according to claim 1, characterized in that: The mounting hole is configured as a long through hole, one end of which is close to the hanging through hole, and the other end of which extends toward an outer side away from the hanging through hole.

5. The hoisting and fixing device for the volute of a submersible pump according to claim 1, characterized in that: The connecting seat comprises a connecting plate and two rib plates, wherein the connecting plate and the two rib plates are vertically connected to the supporting plate, the two rib plates are respectively arranged on both sides of the connecting plate, and the lifting through holes are arranged on the connecting plate.

6. The hoisting and fixing device for the volute of a submersible pump according to claim 1, characterized in that: The connecting seat is further provided with an additional through hole, and the additional through hole is located on the side of the lifting through hole on a projection plane perpendicular to the support plate.

7. The hoisting and fixing device for the volute of a submersible pump according to claim 6, characterized in that: The number of the additional through holes is multiple, and the multiple additional through holes are sequentially spaced apart on a projection surface perpendicular to the support plate in a direction away from the hoisting through hole.

8. The hoisting and fixing device for the volute of a submersible pump according to claim 1, characterized in that: The support plate includes two fan-shaped plates, each of which has a fan-shaped edge. The ends of the two fan-shaped plates that are away from the fan-shaped edge are simultaneously connected to the bottom of the connecting seat. The ends of the two fan-shaped plates with the fan-shaped edges are far away from each other, and the mounting hole is arranged on each fan-shaped plate.

9. The hoisting and fixing device for the volute of a submersible pump according to claim 8, characterized in that: The central angles corresponding to the two sector plates are both greater than 90°, and the number of the mounting holes on each sector plate is at least two.

10. The hoisting and fixing device for the volute of a submersible pump according to claim 9, characterized in that: Each of the fan-shaped plates is also provided with an additional mounting hole, which is located between two adjacent mounting holes. The mounting holes and the additional mounting holes are both constructed as long through holes, one end of the long through hole is close to the lifting through hole, and the other end extends toward the outside away from the lifting through hole.

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