A water pump impeller safe dismounting equipment

Abstract

This utility model discloses a safe disassembly and assembly device for a water pump impeller, comprising: a main body and a reduction mechanism. The main body includes a frame, a cylinder fixed to the bottom of the frame, a transmission wheel rotatably installed in the inner cavity of the cylinder and with its end extending into the frame, a movable seat sleeved on the transmission shaft and extending out of the cylinder, a rotating seat rotatably sleeved on the outside of the movable seat, and multiple tie rod frames arranged in a ring array with their ends hinged to the outer surface of the movable seat for fixing the cylinder and for installing the reduction mechanism. The cylinder is fixed to the bottom of the frame, and rectangular holes are opened on both sides of the cylinder to facilitate the extension of the movable seat and limit the movement of the movable seat. The transmission shaft includes a threaded rod rotatably installed in the inner cavity of the cylinder and with its end extending into the frame, and a first bevel gear fixed to the end of the threaded rod. This safe disassembly and assembly device for a water pump impeller has the advantages of simple structure and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of water pump maintenance technology, specifically a water pump impeller safety disassembly and assembly device. Background Technology

[0002] In water pump maintenance, disassembling and assembling the pump impeller is an essential step. Currently, due to the lack of specialized tools for impeller disassembly and assembly, sledgehammers and copper rods are typically used, or multiple people work together to strike the impeller vertically, which can cause damage to the pump shaft, impeller, bushing, and sealing box. Disassembling and assembling rusted or long-neglected impellers can take more than 4 hours, which is not only inefficient but also labor-intensive. Therefore, this application proposes a safe disassembly and assembly device for water pump impellers. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a water pump impeller safety disassembly and assembly device, including: a main body and a reduction mechanism. The main body includes a frame, a cylinder fixed at the bottom of the frame, a transmission wheel rotatably installed in the inner cavity of the cylinder and with its end extending into the frame, a movable seat sleeved on the transmission shaft and extending out of the cylinder, a rotating seat rotatably sleeved on the outside of the movable seat, and a plurality of pull rods arranged in a ring array and with their ends hinged to the outer surface of the movable seat.

[0005] The deceleration mechanism includes a first deceleration wheel rotatably mounted on the opposite inner side of the frame and meshing with the drive shaft, a second deceleration wheel rotatably mounted in the inner cavity of the frame and meshing with the first deceleration wheel, and a drive component mounted on the top of the frame and meshing with the second deceleration wheel.

[0006] In a preferred embodiment, the present invention can be further configured such that the transmission shaft includes a threaded rod rotatably mounted in the inner cavity of the cylinder and having its end extending into the frame, and a first bevel gear fixed to the end of the threaded rod.

[0007] In a preferred embodiment, the present invention can be further configured such that: the movable seat includes a threaded sleeve fitted onto the threaded rod, a support plate symmetrically fixed on both sides of the threaded sleeve and extending out of the cylinder, and an annular plate fitted onto the outside of the cylinder and fixedly connected to the support plate, wherein the threaded rod and the threaded sleeve mesh with each other.

[0008] In a preferred embodiment, the present invention can be further configured such that an inverted triangular protrusion is fixed at the bottom end of the pull rod.

[0009] In a preferred embodiment, the present invention can be further configured such that: the first reduction wheel includes a first rotating shaft rotatably mounted on the inner wall of the frame, and a second bevel gear and a first gear fixedly sleeved on the first rotating shaft, wherein the second bevel gear meshes with the first bevel gear.

[0010] In a preferred embodiment, the present invention may be further configured such that: the second reduction wheel includes a second shaft rotatably mounted on the inner wall of the frame, and a second gear and a third bevel gear fixedly sleeved on the second shaft, wherein the second gear meshes with the first gear.

[0011] In a preferred embodiment, the present invention can be further configured such that the driving component includes a handwheel rotatably mounted on the top of the frame and extending into the inner cavity of the frame, and a fourth bevel gear fixed at the bottom of the handwheel, wherein the fourth bevel gear meshes with the third bevel gear.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. In this utility model, a frame is provided, a cylinder is fixed at the bottom of the frame, and a drive shaft is rotatably installed in the inner cavity of the cylinder. A movable seat extending out of the cylinder is sleeved on the drive shaft, and a rotating seat is rotatably installed on the outer surface of the movable seat. Multiple tie rods are hinged in a circular array on the outer surface of the rotating seat. At the same time, a drive component is installed at the top of the frame. With the above configuration, in use, it is only necessary to press the bottom of the cylinder against the pump shaft, place the bottom of the tie rod at the bottom of the impeller sleeve, and turn the drive component to drive the drive rod to rotate. The rotation of the drive rod drives the movable seat to move upward, the movable seat to move upward, the rotating seat to move upward, and the rotating seat to move upward, thereby pulling the impeller out of the pump shaft. The structure is simple and can greatly increase the efficiency of pump impeller disassembly.

[0013] 2. In this utility model, a first reduction wheel and a second reduction wheel are installed in the frame. The first reduction wheel meshes with the transmission shaft, and the second reduction wheel meshes with the driving component. This arrangement increases the torque of the transmission shaft, making it more powerful in moving the movable seat, which in turn increases the force that moves the pull rod. This allows the impeller to be pulled off the pump shaft faster and more efficiently. In addition, it reduces the force required for the user to rotate the driving component, further increasing its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the deceleration mechanism of this utility model; Figure 4 This is a partial exploded view of the structure of this utility model.

[0015] Figure label: 100. Main structure; 110. Frame; 120. Cylinder; 130. Drive shaft; 131. Threaded rod; 132. First bevel gear; 140. Movable seat; 141. Threaded sleeve; 142. Support plate; 143. Annular plate; 150. Rotating seat; 160. Tie rod; 161. Inverted triangular protrusion; 200. Reduction mechanism; 210. First reduction gear; 211. First rotating shaft; 212. Second bevel gear; 213. First gear; 220. Second reduction gear; 221. Second rotating shaft; 222. Second gear; 223. Third bevel gear; 230. Driving component; 231. Fourth bevel gear; 232. Handwheel. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0017] Some embodiments of this utility model are described below with reference to the accompanying drawings. Example

[0018] Combination Figure 1-4 As shown, this embodiment provides a water pump impeller safety disassembly and assembly device, including: a main body mechanism 100 and a reduction mechanism 200.

[0019] The main structure includes a frame 110, a cylinder 120 fixed to the bottom of the frame 110, a transmission wheel rotatably installed in the inner cavity of the cylinder 120 and with its end extending into the frame 110, a movable seat 140 sleeved on the transmission shaft 130 and extending out of the cylinder 120, a rotating seat 150 rotatably sleeved on the outside of the movable seat 140, and a plurality of pull rods 160 arranged in a ring array and with their ends hinged to the outer surface of the movable seat 140.

[0020] The frame 110 is used to fix the cylinder 120 and to install the deceleration mechanism 200. The cylinder 120 is fixed to the bottom of the frame 110. Rectangular holes are opened on both sides of the cylinder 120 to facilitate the extension of the movable seat 140 and to limit the movement of the movable seat 140.

[0021] The drive shaft 130 includes a threaded rod 131 rotatably mounted in the inner cavity of the cylinder 120 and with its end extending into the frame 110, and a first bevel gear 132 fixed to the end of the threaded rod 131. Meanwhile, the movable seat 140 includes a threaded sleeve 141 sleeved on the threaded rod 131, a support plate 142 symmetrically fixed on both sides of the threaded sleeve 141 and extending out of the cylinder 120, and an annular plate 143 sleeved on the outside of the cylinder 120 and fixedly connected to the support plate 142. The threaded rod 131 and the threaded sleeve 141 mesh with each other, so that when the threaded rod 131 rotates, it can drive the threaded sleeve 141 to move. The movement of the threaded sleeve 141 drives the annular plate 143 to move synchronously through the support plate 142. The support plate 142 is used to fix the annular plate 143, and the annular plate 143 is used to install the rotating seat 150.

[0022] The rotating seat 150 is used to install the pull rod 160, which facilitates the rotation and adjustment of the pull rod 160. An annular protrusion is provided on the inner side of the rotating seat 150, and an annular groove is opened on the outer side of the annular plate 143. The annular protrusion is rotatably fitted into the annular seat to ensure the stability of the rotating seat 150 during rotation.

[0023] The tie rods 160 are arranged in a ring array, with the top end hinged to the outer surface of the rotating seat 150, and the bottom end integrally fixed with an inverted triangular protrusion 161, which is used to hold the bottom end of the impeller sleeve. When the rotating seat 150 moves, it drives the tie rods 160 to move synchronously. The movement of the tie rods 160 pulls the impeller off the pump shaft, completing the disassembly of the impeller.

[0024] The reduction mechanism 200 is installed in the inner cavity of the frame 110 to increase the pulling force of the pull rod 160. It includes a first reduction wheel 210 rotatably installed on the opposite inner side of the frame 110 and meshing with the drive shaft 130, a second reduction wheel 220 rotatably installed in the inner cavity of the frame 110 and meshing with the first reduction wheel 210, and a drive member 230 installed at the top of the frame 110 and meshing with the second reduction wheel 220.

[0025] The first reduction gear 210 includes a first rotating shaft 211 rotatably mounted on the inner wall of the frame 110, and a second bevel gear 212 and a first gear 213 fixedly sleeved on the first rotating shaft 211. The second bevel gear 212 meshes with the first bevel gear 213. The second reduction gear 220 includes a second rotating shaft 221 rotatably mounted on the inner wall of the frame 110, and a second gear 222 and a third bevel gear 223 fixedly sleeved on the second rotating shaft 221. The second gear 222 meshes with the first gear 213. Meanwhile, the driving component 230 includes a handwheel 232 rotatably mounted on the top of the frame 110 and extending into the inner cavity of the frame 110, and a fixed component on the handwheel 232. The fourth bevel gear 231 at the bottom of the 2nd stage meshes with the third bevel gear 223. When the user turns the handwheel 232, it drives the fourth bevel gear 231 to rotate. The first bevel gear 132 drives the second reduction wheel 220 to rotate for first-stage reduction. Then, the second reduction wheel 220 rotates and drives the first reduction wheel 210 to rotate for second-stage reduction. Finally, the first reduction wheel 210 drives the transmission wheel to rotate. Through multi-stage reduction, the torque of the transmission shaft 130 when it rotates can be increased, so that it can drive the movable seat 140 to move with greater force, that is, drive the pull rod 160 to move with greater force, and thus pull the impeller off the pump shaft faster and more efficiently.

[0026] The working principle and usage process of this utility model are as follows: In use, the bottom end of the cylinder 120 is pressed against the end of the pump shaft, and the inverted triangular protrusion 161 at the bottom of the pull rod 160 is locked onto the bottom end of the impeller sleeve. The hand ring is rotated, which drives the fourth bevel gear 231 to rotate. The rotation of the fourth bevel gear 231 drives the second reduction wheel 220 to rotate. The rotation of the second reduction wheel 220 drives the first reduction wheel 210 to rotate. The rotation of the first reduction wheel 210 drives the first bevel gear 132 to rotate, which in turn drives the threaded rod 131 to rotate. The rotation of the threaded rod 131 drives the threaded sleeve 141 to move upward. The upward movement of the threaded sleeve 141 drives the annular plate 143 to move upward through the support plate 142. The upward movement of the annular plate 143 drives the rotating seat 150 to move upward, which in turn drives the pull rod 160 to move upward, pulling the impeller off the pump shaft.

[0027] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water pump impeller safe dismounting apparatus, comprising: The main structure (100) and the deceleration mechanism (200) are characterized in that the main structure includes a frame (110), a cylinder (120) fixed at the bottom of the frame (110), a transmission wheel rotatably installed in the inner cavity of the cylinder (120) and with its end extending into the frame (110), a movable seat (140) sleeved on the transmission shaft (130) and extending out of the cylinder (120), a rotating seat (150) rotatably sleeved on the outside of the movable seat (140), and a plurality of pull rods (160) arranged in a ring array and with their ends hinged to the outer surface of the movable seat (140). The deceleration mechanism (200) includes a first deceleration wheel (210) rotatably mounted on the opposite inner side of the frame (110) and meshing with the drive shaft (130), a second deceleration wheel (220) rotatably mounted in the inner cavity of the frame (110) and meshing with the first deceleration wheel (210), and a drive member (230) mounted on the top of the frame (110) and meshing with the second deceleration wheel (220).

2. The water pump impeller safe dismounting device according to claim 1, characterized in that, The drive shaft (130) includes a threaded rod (131) rotatably mounted in the inner cavity of the cylinder (120) and with its end extending into the frame (110), and a first bevel gear (132) fixed to the end of the threaded rod (131).

3. The water pump impeller safety disassembly and assembly device according to claim 2, characterized in that, The movable seat (140) includes a threaded sleeve (141) fitted onto the threaded rod (131), a support plate (142) symmetrically fixed on both sides of the threaded sleeve (141) and extending out of the cylinder (120), and an annular plate (143) fitted onto the outside of the cylinder (120) and fixedly connected to the support plate (142). The threaded rod (131) and the threaded sleeve (141) mesh with each other.

4. The water pump impeller safety disassembly and assembly device according to claim 1, characterized in that, The bottom end of the pull rod (160) is fixed with an inverted triangular protrusion (161).

5. The water pump impeller safety disassembly and assembly device according to claim 2, characterized in that, The first reduction wheel (210) includes a first rotating shaft (211) rotatably mounted on the inner wall of the frame (110) and a second bevel gear (212) and a first gear (213) fixedly sleeved on the first rotating shaft (211), wherein the second bevel gear (212) meshes with the first bevel gear (132).

6. The water pump impeller safety disassembly and assembly device according to claim 5, characterized in that, The second reduction wheel (220) includes a second shaft (221) rotatably mounted on the inner wall of the frame (110) and a second gear (222) and a third bevel gear (223) fixedly sleeved on the second shaft (221), wherein the second gear (222) meshes with the first gear (213).

7. The water pump impeller safety disassembly and assembly device according to claim 6, characterized in that, The drive unit (230) includes a handwheel (232) rotatably mounted on the top of the frame (110) and extending into the inner cavity of the frame (110) and a fourth bevel gear (231) fixed at the bottom of the handwheel (232), the fourth bevel gear (231) meshing with the third bevel gear (223).

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