Spiral impeller of water pump

Abstract

The utility model relates to the technical field of water pumps, a water pump spiral impeller comprises a plurality of connecting sections and fixing bolts, the connecting sections are evenly distributed in the axis direction of the connecting sections, one end of each connecting section is coaxially connected to one end of the adjacent connecting section, one end of each connecting section is connected with an embedded block, and the other end of each connecting section is provided with an embedded groove; the embedding blocks are embedded in the embedding grooves, first connecting holes are formed in the outer walls of the connecting sections and communicate with the embedding grooves, and the fixing bolts are embedded in the first connecting holes to achieve relative fixation of the two adjacent connecting sections. The spiral impeller is composed of a plurality of connecting sections, the embedded blocks are embedded in the embedded grooves, the fixing bolts penetrate through the first connecting holes to achieve fixed connection between every two adjacent connecting sections, when any connecting section is damaged, the fixing bolts can be loosened, locking of every two adjacent connecting sections can be relieved, the connecting section can be replaced, the service life of the spiral impeller is prolonged, and the service life of the spiral impeller is prolonged. The use cost of the spiral impeller is reduced, and the economical efficiency and practicability of the spiral impeller are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water pumps, in particular to a water pump spiral impeller. BACKGROUND

[0002] The spiral impeller is a key component of a spiral pump, and mainly rotates under the drive of a motor to realize the conveying of liquid medium. In the use process, the spiral impeller is very fast in abrasion caused by the impact of the medium or the contact with impurities carried in the medium, and is prone to abrasion. The damage of the spiral impeller is not at every place, and most of the damage of the spiral impeller is only partial damage. If the whole impeller is replaced every time the spiral impeller is only partially damaged, the whole impeller is undoubtedly wasted and the use cost is increased. CONTENT OF THE UTILITY MODEL

[0003] In order to improve the service life of the spiral impeller and reduce the use cost, the application provides a water pump spiral impeller.

[0004] The water pump spiral impeller provided by the application adopts the following technical scheme:

[0005] The water pump spiral impeller comprises connecting segments and fixing bolts, the connecting segments are provided in plurality, the connecting segments are uniformly distributed along the connecting segment axis direction, one end of the connecting segment is coaxially connected to one end of an adjacent connecting segment, the one end of the connecting segment is connected with an embedded block, the other end of the connecting segment is provided with an embedded groove, the embedded block is embedded in the embedded groove, a first connecting hole is arranged at the outer wall of the connecting segment, the first connecting hole is in communication with the embedded groove, and the fixing bolts are embedded in the first connecting hole to realize the relative fixation of the adjacent two connecting segments.

[0006] By adopting the above technical scheme, the spiral impeller is composed of multiple connecting segments, the embedded block is embedded in the embedded groove, and the fixing bolts are embedded in the first connecting hole to realize the fixed connection between the adjacent two connecting segments. When any connecting segment is damaged, the fixing bolts can be loosened, the locking of the adjacent two connecting segments is released, the connecting segment is replaced, the service life of the spiral impeller is improved, the use cost of the spiral impeller is reduced, and the economy and practicability of the spiral impeller are improved.

[0007] Preferably, the connecting segment comprises a connecting shaft and spiral blades, the spiral impeller is connected to the outer periphery of the connecting shaft, and the spiral blades are provided in plurality and uniformly distributed in the circumferential direction around the connecting shaft axis.

[0008] By adopting the above technical scheme, the connecting shaft rotates to drive the spiral blades to rotate, the conveying of the liquid medium is realized, and the multiple spiral blades are uniformly distributed in the circumferential direction around the connecting shaft axis, which helps to enhance the conveying efficiency of the water pump.

[0009] Preferably, the lower end base is connected to one end of the connecting section, the outer wall of the lower end base is flush with the outer wall of the connecting shaft, the lower end base is gradually expanded from the end away from the connecting shaft to the side close to the connecting shaft, the slot wall away from the end of the embedded block is provided with a connecting groove, and one end of the lower end base is coaxially connected with a connecting block which is coaxially and threadedly connected in the connecting groove.

[0010] By adopting the above technical scheme, the lower end base is connected to one end of the connecting section, the outer wall of the lower end base is flush with the outer wall of the connecting shaft, and the lower end base is gradually expanded from the end away from the connecting shaft to the side close to the connecting shaft, which helps the liquid medium flow along the outer wall of the lower end base to the outer wall of the connecting shaft and then move with the spiral blade, thereby ensuring smooth water flow in the water pump during operation, reducing turbulence and resistance, and improving the working efficiency of the water pump.

[0011] Preferably, the first connecting hole is provided with a plurality of first connecting holes which are circumferentially and intervaliy distributed around the axis of the connecting shaft, and the number of the fixing bolts is the same as and one-to-one corresponds to the number of the first connecting holes.

[0012] By adopting the above technical scheme, the adjacent two connecting sections are fixedly connected through the plurality of fixing bolts, the stability of the connection between the adjacent two connecting sections is improved, and the reliability of the spiral impeller is improved.

[0013] Preferably, the side wall of the embedded block is provided with a fixing hole, the number of the fixing hole is the same as and one-to-one corresponds to the number of the first connecting hole, and the fixing bolt is threadedly connected in the fixing hole after passing through the first connecting hole.

[0014] By adopting the above technical scheme, the fixing bolt is threadedly connected with the fixing hole, the stability of the connection between the adjacent two connecting sections is improved, the possibility of the disconnection of the connecting section during the operation of the water pump is reduced, and the reliability of the spiral impeller is improved.

[0015] Preferably, the first connecting hole is provided with a plurality of first connecting holes which are circumferentially and intervaliy distributed around the axis of the connecting shaft, and the number of the fixing bolts is the same as and one-to-one corresponds to the number of the first connecting holes.

[0016] By adopting the above technical scheme, the embedded block is embedded in the recess, the recess, the first connecting hole and the fixing hole are closed, the liquid medium is prevented from entering the recess, the first connecting hole and the fixing hole, the possibility of the corrosion and damage of the fixing bolt is reduced, and the service life of the spiral impeller is improved.

[0017] Preferably, the handle is provided with a containing groove on the side away from the groove bottom of the plugging block, the handle is rotatably embedded in the containing groove, and the rotation axis of the handle is perpendicular to the axis of the recess.

[0018] By adopting the technical scheme, the handle is arranged, the handle is convenient for taking out or putting in the blocking block, the accommodating groove is arranged, and the handle is convenient for being embedded in the accommodating groove during use, thereby reducing the influence of the handle on the conveying efficiency of the water pump.

[0019] Preferably, a limiting block is arranged at the groove wall of the accommodating groove, a first chamfer is arranged at the end of the limiting block away from the groove wall of the accommodating groove, the first chamfer is arranged at the side of the limiting block away from the groove bottom of the accommodating groove, the first chamfer is used for abutting against the handle, an avoiding groove is arranged at the groove wall of the side of the accommodating groove away from the limiting block, the avoiding groove penetrates the blocking block at the side of the avoiding groove away from the groove bottom of the accommodating groove, and the avoiding groove is used for embedding a finger.

[0020] By adopting the technical scheme, the limiting block is provided with the first chamfer, the first chamfer is used for abutting against the handle, when the handle is embedded in the accommodating groove, the limiting block abuts against the side surface of the handle away from the groove bottom of the accommodating groove, the handle is limited, the possibility that the handle is separated from the accommodating groove due to centrifugal force is reduced, and the avoiding groove is arranged, so that the finger is convenient for being inserted into the avoiding groove to push the handle out of the accommodating groove when needed, so as to take out or put in the blocking block.

[0021] Preferably, the cross section of the embedding block is a polygon, and the side wall of the embedding block is matched with the groove wall of the embedding groove.

[0022] By adopting the technical scheme, the embedding block is a polygon, when the connecting segment close to the motor output shaft rotates, the embedding block abuts against the groove wall of the embedding groove, and drives the adjacent connecting segment to rotate, so as to realize the work of the whole spiral impeller, reduce the stress concentration phenomenon at the fixed bolt, and reduce the possibility of damage of the fixed bolt.

[0023] Preferably, a first round corner is arranged at the outer periphery of the end of the embedding block away from the connecting segment, and the first round corner is used for abutting against the groove wall of the embedding groove.

[0024] By adopting the technical scheme, the first round corner is used for abutting against the groove wall of the embedding groove, plays a guiding role in the installation of the embedding block, and is convenient for embedding the embedding block in the embedding groove, thereby improving the assembly efficiency.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The spiral impeller is composed of multiple connecting segments, the embedding block is embedded in the embedding groove, the fixed bolt is arranged to pass through the first connecting hole to realize the fixed connection between the adjacent two connecting segments, when any connecting segment is damaged, the fixed bolt can be loosened to release the locking of the adjacent two connecting segments, the connecting segment is replaced, the service life of the spiral impeller is improved, the use cost of the spiral impeller is reduced, and the economy and practicability of the spiral impeller are improved.

[0027] 2. The connecting shaft rotates to drive the helical blades to rotate, realizing the delivery of the liquid medium. The plurality of helical blades are evenly distributed circumferentially around the axis of the connecting shaft, which helps to enhance the delivery efficiency of the water pump.

[0028] 3. The blocking block is embedded in the groove to close the groove, the first connecting hole and the fixing hole, thereby preventing the liquid medium from entering the groove, the first connecting hole and the fixing hole, reducing the possibility of corrosion and damage of the fixing bolt, and prolonging the service life of the helical impeller. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of a water pump helical impeller.

[0030] Figure 2 is a partial sectional view of a water pump helical impeller.

[0031] Figure 3 is a partial exploded structural schematic diagram of the connecting section and the lower end seat.

[0032] Figure 4 is Figure 2 is an enlarged view of A in FIG. 4.

[0033] Figure 5 is a structural schematic diagram of a blocking assembly.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 1. Connecting section; 11, connecting shaft; 111, embedded groove; 112, first connecting hole; 113, connecting groove; 114, groove; 115, internal thread; 116, transmission hole; 12, helical blade; 13, embedded block; 131, first round corner; 132, fixing hole; 14, protrusion; 141, second round corner;

[0036] 2. Fixing bolt;

[0037] 3. Lower end seat; 31, connecting block;

[0038] 4. Blocking assembly; 41, blocking block; 411, accommodating groove; 412, limiting block; 4121, first chamfer; 413, avoiding groove; 42, handle. DETAILED DESCRIPTION

[0039] The application will be further described in detail below with reference to the accompanying drawings.

[0040] Referring to Figure 1 , the application discloses a water pump helical impeller, which comprises a connecting section 1. The connecting section 1 comprises a connecting shaft 11 and a helical blade 12. The helical blade 12 is fixedly connected to the outer periphery of the connecting shaft 11. The helical blade 12 is provided in plurality. The plurality of helical blades 12 are evenly distributed circumferentially around the axis of the connecting shaft 11. In the embodiment, the helical blade 12 is provided in two.

[0041] With reference to Figure 1 and Figure 2 , the connecting segment 1 is provided with a plurality of connecting segments 1 which are uniformly distributed along the axis direction of the connecting shaft 11. In this embodiment, the connecting segment 1 is provided with three. One end of the connecting segment 1 is coaxially connected to one end of the adjacent connecting segment 1, one end of the connecting shaft 11 is coaxially provided with a connecting groove 113, and the groove wall of the connecting groove 113 is provided with an internal thread 115. The other end of the connecting shaft 11 is fixedly connected with a protrusion 14, the protrusion 14 is embedded in the connecting groove 113 of the adjacent connecting segment 1, and the outer wall of the protrusion 14 is in close contact with the inner wall of the internal thread 115. The outer periphery of the protrusion 14 away from one end of the connecting shaft 11 is provided with a second round corner 141, and the second round corner 141 is used to abut against the groove wall of the connecting groove 113. The groove bottom of the embedding groove 111 is coaxially provided with a transmission hole 116, and the transmission hole 116 penetrates the connecting shaft 11, the protrusion 14 and the embedding block 13 in turn along the axis direction of the connecting shaft 11, and the transmission hole 116 is used for embedding the output shaft of the motor.

[0042] With reference to Figure 2 and Figure 3 , the groove bottom of the connecting groove 113 is coaxially provided with an embedding groove 111, and the cross section of the embedding groove 111 along the axis direction of the connecting shaft 11 is a polygon. In this embodiment, the cross section of the embedding groove 111 is hexagonal. The end of the protrusion 14 away from the connecting shaft 11 is fixedly connected with an embedding block 13, the embedding block 13 is embedded in the embedding groove 111 of the adjacent connecting segment 1, and the side wall of the embedding block 13 is in close contact with the groove wall of the embedding groove 111. The outer periphery of the embedding block 13 away from one end of the protrusion 14 is provided with a first round corner 131, and the first round corner 131 is used to abut against the groove wall of the embedding groove 111 and the groove wall of the connecting groove 113.

[0043] With reference to Figure 2 and Figure 4 , a water pump spiral impeller further comprises a fixing bolt 2, the groove wall of the embedding groove 111 is provided with a first connecting hole 112, the first connecting hole 112 is in communication with the outside, the axis of the first connecting hole 112 is perpendicular to the axis of the connecting shaft 11, and the axis of the first connecting hole 112 is coplanar with the axis of the connecting shaft 11. The first connecting hole 112 is provided with a plurality of first connecting holes 112, and the plurality of first connecting holes 112 are distributed at intervals around the axis of the connecting shaft 11. In this embodiment, the first connecting hole 112 is provided with two, and the two first connecting holes 112 are uniformly distributed around the axis of the connecting shaft 11. The side wall of the embedding block 13 is provided with a fixing hole 132, the number of the fixing bolt 2 and the fixing hole 132 is the same as and corresponds to the number of the first connecting hole 112, and the fixing bolt 2 is threadedly connected in the fixing hole 132 after penetrating the first connecting hole 112. The hole wall of the first connecting hole 112 away from one end of the embedding groove 111 is provided with a recess 114, the head of the fixing bolt 2 is embedded in the recess 114, and the side surface of the head of the fixing bolt 2 close to the embedding groove 111 abuts against the groove bottom of the recess 114.

[0044] With reference to Figure 4 andFigure 5 The water pump spiral impeller further comprises a plugging assembly 4, the plugging assembly 4 comprises a plugging block 41 and a handle 42, the number of the plugging block 41 and the number of the handle 42 are the same as the number of the groove 114 and one-to-one correspondence, the plugging block 41 is embedded in the groove 114, the side wall of the plugging block 41 is in close contact with the groove wall of the groove 114, and the side surface of the plugging block 41 away from the groove bottom of the groove 114 is flush with the outer wall of the connecting shaft 11. The side surface of the plugging block 41 away from the groove bottom of the groove 114 is provided with a containing groove 411, the handle 42 is arc-shaped, and the rotation axes of the two ends of the handle 42 are respectively embedded in the containing groove 411. The rotation axes of the handle 42 are perpendicular to the axis direction of the groove 114. The handle 42 is embedded in the containing groove 411, one side surface of the handle 42 is in close contact with the groove bottom of the containing groove 411, a limiting block 412 is fixedly connected at the side groove wall of the containing groove 411 away from the axis of the groove 114, the limiting block 412 is provided with a plurality of limiting blocks 412, and the plurality of limiting blocks 412 are distributed along the circumference of the containing groove 411. In the embodiment, the limiting block 412 is provided with three limiting blocks 412, and the three limiting blocks 412 are uniformly distributed along the circumference of the containing groove 411. The end of the limiting block 412 away from the groove wall of the containing groove 411 is provided with a first chamfer 4121, the first chamfer 4121 is located at the side of the limiting block 412 away from the groove bottom of the containing groove 411, and the first chamfer 4121 is used for abutting with the handle 42. The other side groove wall of the containing groove 411 is provided with a avoiding groove 413, the groove bottom of the avoiding groove 413 is located at the side of the groove bottom of the containing groove 411 close to the groove bottom of the groove 114, the side of the avoiding groove 413 away from the groove bottom of the groove 114 penetrates the plugging block 41, and the avoiding groove 413 is used for embedding the fingers.

[0045] Referring to Figure 1 and Figure 3 The water pump spiral impeller further comprises a lower end seat 3, the lower end seat 3 is fixedly connected to one end of the plurality of connecting segments 1, one end of the lower end seat 3 abuts against the connecting shaft 11 close to one end of the connecting groove 113, and the end of the lower end seat 3 close to the connecting groove 113 is fixedly connected with a connecting block 31 in a coaxial manner, and the connecting block 31 is threadedly connected with the internal thread 115. The outer wall of the lower end seat 3 is flush with the outer wall of the connecting shaft 11, and the end of the lower end seat 3 away from the connecting shaft 11 is gradually expanded towards the side close to the connecting shaft 11.

[0046] The implementation principle of the water pump spiral impeller embodiment of the application is as follows: when assembling, the insert block 13 of one connecting segment 1 is slidably connected to the connecting groove 113 of another connecting segment 1, the first fillet 131 abuts the groove bottom of the connecting groove 113, the insert block 13 is embedded in the connecting groove 113, the positions of the spiral blades 12 of the adjacent two connecting segments 1 are adjusted, the connecting segment 1 is continuously moved, the first fillet 131 abuts the groove wall of the embedding groove 111, the insert block 13 is embedded in the embedding groove 111, the side wall of the insert block 13 is in close contact with the groove wall of the embedding groove 111, the fixing hole 132 is in communication with the first connecting hole 112, the fixing bolt 2 is screwed with the fixing hole 132 after passing through the first connecting hole 112, and the head of the fixing bolt 2 abuts the groove bottom of the recess 114 to realize the relative fixation of the adjacent two connecting segments 1. The handle 42 is held, the blocking block 41 is embedded in the recess 114, and the side surface of the blocking block away from the recess 114 is flush with the outer wall of the connecting shaft 11. The handle 42 is rotated, the handle 42 abuts the first chamfer 4121, the limiting block 412 is pushed to bend, the handle 42 is embedded in the containing groove 411, the limiting block 412 is reset, and the limiting block 412 abuts the side surface of the handle 42 away from the groove bottom of the containing groove 411. The connection of the multiple connecting segments 1 is sequentially completed, the connecting hole of the lower end seat 3 is screwed with the internal thread 115, and the installation of the spiral impeller is realized.

[0047] When any connecting segment 1 needs to be replaced, the finger is embedded in the avoiding groove 413, the handle 42 is pushed out of the recess 114, the blocking block 41 is taken out, the fixing bolt 2 is loosened, the adjacent two connecting segments 1 are separated, the fixing bolts 2 at the two ends of the connecting segment 1 are sequentially taken out, the connecting segment 1 is taken out, the replaced connecting segment 1 is put in, the connecting segment 1 is connected with the connecting segments 1 on both sides, and the replacement of the connecting segment 1 is realized.

[0048] The above are preferred embodiments of the application, which do not limit the protection scope of the application, so that: equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A water pump spiral impeller, characterized by: The utility model provides a kind of connecting segment (1) and fixed bolt (2);The connecting segment (1) is equipped with several;Several connecting segment (1) is evenly distributed along the axis direction of connecting segment (1);The one end of connecting segment (1) is coaxially connected to the one end of adjacent connecting segment (1);The one end of connecting segment (1) is connected with embedded block (13);The other end of connecting segment (1) is equipped with embedded groove (111);Embedded block (13) is embedded in embedded groove (111);The outer wall of connecting segment (1) is equipped with first connecting hole (112);The first connecting hole (112) is communicated with embedded groove (111);Fixed bolt (2) is embedded in first connecting hole (112) to realize the relative fixation of adjacent two connecting segment (1).

2. The water pump spiral impeller of claim 1, wherein: The connecting segment (1) includes connecting shaft (11) and spiral blade (12);The spiral blade (12) is connected to the outer periphery of connecting shaft (11);The spiral blade (12) is equipped with several;Several spiral blades (12) are evenly distributed around the axis of connecting shaft (11) circumferentially.

3. The water pump spiral impeller of claim 2, wherein: Also including lower end seat (3);The lower end seat (3) is connected to the one end of several connecting segment (1);The outer wall of lower end seat (3) is flush with the outer wall of connecting shaft (11);The one end of lower end seat (3) away from connecting shaft (11) is gradually expanded to the side close to connecting shaft (11);The groove wall of the other end of embedded groove (111) away from embedded block (13) is equipped with connecting groove (113);The one end of lower end seat (3) is coaxially connected with connecting block (31);The connecting block (31) is coaxially screwed in connecting groove (113).

4. The water pump spiral impeller of claim 2, wherein: The first connecting hole (112) is equipped with several;Several first connecting holes (112) are spaced around the axis of connecting shaft (11) circumferentially;The number of fixed bolt (2) is same with the number of first connecting hole (112) and one-to-one correspondence.

5. The water pump spiral impeller of claim 4, wherein: The side wall of embedded block (13) is equipped with fixed hole (132);The number of fixed hole (132) is same with the number of first connecting hole (112) and one-to-one correspondence;After fixed bolt (2) passes through first connecting hole (112), it is screwed in fixed hole (132).

6. The water pump spiral impeller of claim 4, wherein: Also including blocking block (41);The hole wall of the one end of first connecting hole (112) away from embedded groove (111) is equipped with recess (114);The head of fixed bolt (2) is embedded in recess (114);The number of blocking block (41) is same with the number of recess (114) and one-to-one correspondence;Blocking block (41) is embedded in recess (114);The side wall of blocking block is fitted with the groove wall of recess (114);The side surface of blocking block (41) away from the groove bottom of recess (114) is flush with the outer wall of connecting shaft (11).

7. The water pump spiral impeller of claim 6, wherein: Also including handle (42);The side of blocking block (41) away from the groove bottom of recess (114) is equipped with accommodating groove (411);The handle (42) is rotationally embedded in accommodating groove (411);The rotation axis of handle (42) is perpendicular to the axis of recess (114).

8. The water pump spiral impeller of claim 7, wherein: The accommodating groove (411) is provided with a limiting block (412) at the groove wall; the limiting block (412) is provided with a first chamfer (4121) at the end far away from the groove wall of the accommodating groove (411); the first chamfer (4121) is located at the side of the limiting block (412) far away from the groove bottom of the accommodating groove (411); the first chamfer (4121) is used for abutting with the handle (42); the side groove wall of the accommodating groove (411) far away from the limiting block (412) is provided with an avoiding groove (413); the avoiding groove (413) penetrates the blocking block (41) at the side far away from the groove bottom of the accommodating groove (411); the avoiding groove (413) is used for embedding the finger.

9. The water pump spiral impeller of claim 1, wherein: The cross section of the embedded block (13) is polygonal; the side wall of the embedded block (13) is attached to the groove wall of the embedded groove (111).

10. The water pump spiral impeller of claim 9, wherein: The outer periphery of the embedded block (13) far away from one end of the connecting section (1) is provided with a first round corner (131); the first round corner (131) is used for abutting with the groove wall of the embedded groove (111).

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