Water pump impeller convenient to replace

Abstract

The utility model discloses a water pump impeller convenient to replace, which comprises a splicing module, each splicing module comprises a lower end disc, a rod sleeve connected with the top of the lower end disc, two protrusions integrally formed with the rod sleeve, a plurality of positioning rods connected with the top of the lower end disc, blades connected to the outer sides of the positioning rods in a sleeving mode, and an upper end disc arranged at the top of the lower end disc. The inserting rod is movably installed at the bottom of the upper end disc and connected with the rod sleeve in an inserted mode, and the two notches are formed in the inserting rod. In the utility model, when the abraded blade is detached and replaced, an external hexagonal wrench is inserted into the rotating groove, then the external hexagonal wrench is rotated, then the inserting rod is rotated, and after the bulge and the notch are staggered, the inserting rod moves upwards from the rod sleeve, so that the lower end disc and the upper end disc are separated, and then the rod body is separated from the blade and then moves along the positioning rod; the abraded blades are detached and replaced, force is even, and the blades can be replaced without damage.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump impellers, in particular to a water pump impeller that is easy to replace. Background Art

[0002] A water pump is a machine that transports liquids or increases the pressure of liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals.

[0003] Application number CN201720865249.8 proposes a combined closed water pump impeller, including an upper end plate and a lower end plate connected by a connecting shaft, the upper end plate is provided with an upper blade, the lower end plate is provided with a lower blade at a position corresponding to the upper blade, the upper end surface of the upper blade is provided with a blade groove matching the size of the lower blade, and the lower blade is connected to the upper blade by inserting the blade groove. The lower blade of the utility model is inserted into the blade groove, so that the upper blade and the lower blade are combined into a complete blade, and when the blade is subjected to force, the force is distributed to the connection between the upper blade and the upper end plate and the connection between the lower blade and the lower end plate, and the force is distributed, so that the service life of the blade is longer, and relative to the impeller whose upper and lower ends of the blade are directly fixed between the upper end plate and the lower end plate, the impeller is easier to disassemble and install, and more convenient to use. When separating the upper and lower plates, no matter which side the upper and lower plates are opened from, uneven force is likely to occur, causing the lower blades to break off and fall into the blade grooves, and then it becomes difficult to remove the lower blades, causing inconvenience to use. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A water pump impeller that is easy to replace includes a splicing module, the splicing module includes a lower end plate, a rod sleeve connected to the top of the lower end plate, two protrusions integrally formed with the rod sleeve, a plurality of positioning rods connected to the top of the lower end plate, blades sleeved on the outside of the positioning rods, an upper end plate arranged on the top of the lower end plate, an insertion rod movably mounted on the bottom of the upper end plate and plugged into the rod sleeve, two recesses opened on the insertion rod, and a plurality of rod bodies connected to the bottom of the upper end plate, the plurality of rod bodies are respectively plugged into a plurality of blades, and the protrusions fit into the recesses.

[0007] By adopting the above technical solution, when replacing the worn blades, the external hexagonal wrench is inserted into the rotating groove, and then the external hexagonal wrench is rotated, and then the insertion rod is rotated. After the protrusion and the recess are misaligned, the insertion rod moves upward from the rod sleeve, thereby realizing the separation of the lower end plate and the upper end plate, and then the rod body leaves the blade, and then the worn blade is replaced along the positioning rod, and the force is evenly applied, so that the blade can be replaced without damage.

[0008] In a preferred example, the utility model can be further configured as follows: the two protrusions are vertically symmetrical about the vertical center plane of the rod sleeve, and the protrusions are made of the same material as the rod sleeve.

[0009] In a preferred example, the utility model can be further configured as follows: a plurality of positioning rods are equally spaced and annularly surrounded on the outside of the rod sleeve, and the height of the positioning rods is equal to the height of the blades.

[0010] In a preferred example, the utility model can be further configured as follows: a plurality of rods are equally spaced and annularly surrounded on the outside of the insertion rod, the rods are located on the inside of the positioning rod, and the length of the rods is half of the height of the blade.

[0011] In a preferred example, the utility model can be further configured as follows: two springs are embedded in the rod sleeve, and the two springs are respectively located at the bottom of the two protrusions.

[0012] In a preferred example, the utility model can be further configured as follows: a buckle plate is installed at the inner end of the spring, and the buckle plate is movably plugged with the insertion rod.

[0013] In a preferred example, the utility model can be further configured as follows: a rotation groove is formed on the top of the insertion rod, a round opening is formed on the top of the upper end plate, and the round opening is communicated with the inside of the rotation groove.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] In the utility model, when replacing the worn blades, the external hexagonal wrench is inserted into the rotating groove, and then the external hexagonal wrench is rotated, and then the insertion rod is rotated. After the protrusion and the recess are misaligned, the insertion rod moves upward from the rod sleeve, thereby realizing the separation of the lower end plate and the upper end plate, and then the rod body leaves the blade, and then the worn blade is replaced along the positioning rod, and the force is evenly applied, so that the blade can be replaced without damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 The right schematic diagram of the overall structure of the splicing module of the utility model is disassembled;

[0018] Figure 3The left schematic diagram of the overall structure of the splicing module of the utility model is disassembled;

[0019] Figure 4 It is a schematic diagram of the installation position of the spring and the buckle plate of the utility model.

[0020] Reference numerals:

[0021] 100, splicing module; 110, lower end plate; 120, rod sleeve; 130, protrusion; 140, positioning rod; 150, blade; 160, upper end plate; 170, insertion rod; 180, notch; 190, rod body;

[0022] 200, spring;

[0023] 300, buckle plate;

[0024] 400. Rotating groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0027] A water pump impeller that is easy to replace provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings. Embodiment 1

[0028] Combination Figure 1-4 As shown, the utility model provides a water pump impeller that is easy to replace, including a splicing module 100, the splicing module 100 includes a lower end plate 110, a rod sleeve 120 connected to the top of the lower end plate 110, two protrusions 130 integrally formed with the rod sleeve 120, a plurality of positioning rods 140 connected to the top of the lower end plate 110, blades 150 sleeved on the outside of the positioning rods 140, an upper end plate 160 arranged at the top of the lower end plate 110, an insertion rod 170 movably mounted on the bottom of the upper end plate 160 and plugged into the rod sleeve 120, two recesses 180 opened on the insertion rod 170, and a plurality of rod bodies 190 connected to the bottom of the upper end plate 160, the plurality of rod bodies 190 are respectively plugged into the plurality of blades 150, and the protrusions 130 fit into the recesses 180.

[0029] Furthermore, the two protrusions 130 are vertically symmetrical about the vertical center plane of the rod sleeve 120. The protrusions 130 are made of the same material as the rod sleeve 120. With this layout design, the manufacturing of the protrusions 130 and the rod sleeve 120 becomes easy.

[0030] Furthermore, a plurality of positioning rods 140 are equally spaced and annularly enclosed on the outside of the rod sleeve 120 . The height of the positioning rods 140 is equal to the height of the blades 150 . With this size design, the blades 150 and the positioning rods 140 are firmly connected.

[0031] Furthermore, multiple rod bodies 190 are equally spaced and arranged in a ring shape around the outside of the insertion rod 170. The rod bodies 190 are located on the inside of the positioning rod 140, and the length of the rod bodies 190 is half the height of the blade 150. With this size design, the rod bodies 190 can be more easily pulled out of the blade 150 relative to the positioning rod 140. Embodiment 2

[0032] Combination Figure 4 As shown, based on the first embodiment, two springs 200 are embedded inside the rod sleeve 120, and the two springs 200 are respectively located at the bottom of the two protrusions 130. The springs 200 are arranged so that the buckle plate 300 can be inserted into the insertion rod 170, thereby improving the firmness of the insertion rod 170 and the rod sleeve 120 after being plugged in.

[0033] Specifically, a snap-on plate 300 is installed at the inner end of the spring 200 , and the snap-on plate 300 is movably connected to the insertion rod 170 . The provision of the snap-on plate 300 can reduce the probability of the insertion rod 170 rotating on its own and improve the firmness of the assembly of the lower end plate 110 and the upper end plate 160 . Embodiment 3

[0034] Combination Figure 1-4 As shown, in the above embodiment, a rotation groove 400 is provided on the top of the insertion rod 170, and a circular opening is provided on the top of the upper end plate 160, and the circular opening is connected to the inside of the rotation groove 400. The rotation groove 400 is provided to facilitate the user to rotate the insertion rod 170, thereby providing convenience for separating the rod sleeve 120 and the insertion rod 170.

[0035] The working principle and use process of the utility model are as follows: in the initial state, the insertion rod 170 and the rod sleeve 120 are in a plug-in state, and then the lower end plate 110 cooperates with the upper end plate 160 to fix the multiple blades 150. Then, when replacing the worn blades 150, insert the external hexagonal wrench into the rotating groove 400, and then rotate the external hexagonal wrench. Then the insertion rod 170 rotates, and after the protrusion 130 and the recess 180 are misaligned, the insertion rod 170 moves upward from the rod sleeve 120, thereby realizing the separation of the lower end plate 110 and the upper end plate 160, and then the rod body 190 leaves the blade 150, and then follows the positioning rod 140 to replace the worn blades 150. The force is even, and the blade 150 can be replaced without damage.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water pump impeller that is easy to replace, characterized in that: include: The splicing module (100) comprises a lower end plate (110), a rod sleeve (120) connected to the top of the lower end plate (110), two protrusions (130) integrally formed with the rod sleeve (120), a plurality of positioning rods (140) connected to the top of the lower end plate (110), blades (150) sleeved on the outside of the positioning rods (140), an upper end plate (160) arranged on the top of the lower end plate (110), an insertion rod (170) movably mounted on the bottom of the upper end plate (160) and plugged into the rod sleeve (120), two recesses (180) provided on the insertion rod (170), and a plurality of rod bodies (190) connected to the bottom of the upper end plate (160), wherein the plurality of rod bodies (190) are respectively plugged into the plurality of blades (150), and the protrusions (130) fit into the recesses (180).

2. The easily replaceable water pump impeller according to claim 1, characterized in that: The two protrusions (130) are vertically symmetrical about a vertical center plane of the rod sleeve (120), and the protrusions (130) are made of the same material as the rod sleeve (120).

3. The easily replaceable water pump impeller according to claim 1, characterized in that: A plurality of positioning rods (140) are arranged at equal intervals and in a ring shape to surround the outside of the rod sleeve (120); the height of the positioning rods (140) is equal to the height of the blades (150).

4. The easily replaceable water pump impeller according to claim 1, characterized in that: A plurality of rod bodies (190) are arranged at equal intervals and in a ring shape around the outside of the insertion rod (170); the rod bodies (190) are located inside the positioning rod (140); and the length of the rod bodies (190) is half the height of the blade (150).

5. The easily replaceable water pump impeller according to claim 1, characterized in that: Two springs (200) are embedded inside the rod sleeve (120), and the two springs (200) are respectively located at the bottom of the two protrusions (130).

6. The easily replaceable water pump impeller according to claim 5, characterized in that: A buckle plate (300) is installed at the inner end of the spring (200), and the buckle plate (300) is movably plugged into the insertion rod (170).

7. The easily replaceable water pump impeller according to claim 1, characterized in that: The top of the insertion rod (170) is provided with a rotation groove (400), and the top of the upper end plate (160) is provided with a circular opening, the circular opening being in communication with the interior of the rotation groove (400).

Images