Water pump

Abstract

The utility model provides a water pump which comprises a rotor and a rotating shaft, the rotor is arranged on the rotating shaft in a sleeved mode and does circumferential motion relative to the rotating shaft with the rotating shaft as the center, the water pump further comprises a shaft support, a moving block, an ejecting block and a guiding component, and the rotating shaft rotates around the axial direction of the rotating shaft and moves within a limited distance in the axial direction of the rotating shaft. The shaft supports are fixedly arranged relatively, and spaces for the moving blocks to move in the axial direction of the rotating shaft are formed in the shaft supports. The moving block is matched with the first end of the rotating shaft, is fixed relative to the circumferential direction of the rotating shaft and is movably arranged relative to the axial direction of the rotating shaft, and the moving block is spirally matched with the shaft support; the ejector block is matched with the moving block in a spiral mode, the ejector block does not rotate relative to the guiding component under limitation of the guiding component, and the moving block drives the ejector block to move towards the rotating shaft and impact the rotating shaft. The rotating shaft moves along the axial direction of the rotating shaft after being impacted by the top block, so that the bonding force of the rotating shaft and the rotor is damaged, the rotating shaft and the rotor are separated, and the water pump is prevented from being stuck due to bonding of the rotor and the rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a water pump. Background Art

[0002] With the continuous improvement of living standards, users have higher and higher requirements for bathing comfort and other water experience that gas water heaters can bring. The water pump in the gas water heater is an important component to ensure user experience. At present, the gas water heaters on the market mostly use DC brushless water pumps. Compared with traditional AC water pumps, DC brushless water pumps are smaller in size, longer in life, lower in noise, and can adjust the speed and signal feedback. For example, the water pump disclosed in Chinese patent CN218151448U is a DC brushless water pump.

[0003] In order to reduce the noise and vibration of the water pump and make it run more smoothly, the gap between the water pump rotor and the main shaft is usually reserved very small, which also makes the water pumps on the market have a certain probability of getting stuck. Due to the differences in water quality in different places and the different pipe conditions in users' homes, although there is a filter device at the water inlet of the gas water heater, some fine sand or other impurities still enter the pump body and adhere to the gap between the main shaft and the rotor. If the water pump does not run for a long time, these impurities may become sticky after being soaked in water for a long time, and the main shaft and rotor may be bonded. If the starting torque of the water pump cannot break free from the bonding force, the water pump will fail to start and get stuck.

[0004] Although the water pump disclosed in CN218151448U can solve the problem of DC brushless water pump getting stuck, it requires staff to operate from the outside to solve the problem, and the problem of getting stuck cannot be solved automatically, which is not conducive to reducing manpower and improving user experience. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a water pump to overcome the defects in the prior art that fine mud or other impurities attached to the gap between the main shaft and the rotor will cause the water pump to get stuck, and the water pump cannot automatically solve the problem of getting stuck after getting stuck.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A water pump comprises a rotor and a rotating shaft, wherein the rotor is sleeved on the rotating shaft and moves circumferentially relative to the rotating shaft with the rotating shaft as the center, and the water pump further comprises a shaft support, a moving block, a top block and a guide component, wherein:

[0008] The rotating shaft is configured to rotate about its axial direction and move within a limited distance along its axial direction;

[0009] The shaft support and the guide component are both fixedly arranged relative to the water pump, and a space is provided in the shaft support for the moving block to move along the axial direction of the rotating shaft;

[0010] The moving block is matched with the first end of the rotating shaft, the moving block is fixed relative to the circumference of the rotating shaft and is movably arranged relative to the axial direction of the rotating shaft, and the moving block is spirally matched with the shaft support;

[0011] The top block is spirally matched with the moving block, the guide component is relatively fixedly arranged, and the top block does not rotate relative to the guide component under the restriction of the guide component. The moving block drives the top block to move toward the rotating shaft and hit the rotating shaft.

[0012] In this scheme, when the rotating shaft and the rotor are bonded due to impurities, the rotating shaft will rotate around the axial direction of the rotating shaft under the drive of the rotor, the moving block will rotate along with the rotating shaft under the drive of the rotating shaft, and the moving block will move along the axial direction of the rotating shaft when rotating, and the circumferential movement of the top block is fixed by the guide component. When the moving block rotates and moves along the axial direction of the rotating shaft, the top block and the moving block produce relative rotation, and the top block will move along the axial direction of the rotating shaft under the drive of the moving block and hit the rotating shaft. After the rotating shaft is subjected to the impact force from the top block, it will be displaced along the axial direction of the rotating shaft, so that the bonding force between the rotating shaft and the rotor is destroyed, and the rotating shaft is separated from the rotor, thus avoiding the situation that the rotor and the rotating shaft are bonded and cause the water pump to be stuck. In addition, the bonding force between the rotor and the rotating shaft can be converted into an axial force along the rotating shaft after passing through the moving block and the top block in sequence, and then transmitted to the rotating shaft again. In other words, the separation of the rotating shaft and the rotor is automatically achieved by using the bonding force between the rotating shaft and the rotor, without the need for maintenance personnel to operate from the outside.

[0013] Preferably, the moving block comprises a matching portion, the matching portion is a spiral protrusion or groove, and the top block is provided with a depression or a protrusion corresponding to the matching portion for matching.

[0014] In this solution, when the moving block rotates and moves axially along the shaft, the groove and the protrusion slide relative to each other, so that the protrusion is located at different positions relative to the groove, thereby causing the top block to move axially along the shaft and hit the shaft.

[0015] Preferably, the guide component has a columnar guide end extending toward the rotating shaft, the top block has a guide hole, the guide hole is sleeved on the guide end, and the shapes of the guide hole and the guide end are arranged to limit relative rotation.

[0016] In this solution, compared with using other additional fixing parts to fix the top block and the guide component, the shape of the guide hole and the guide end is used to limit the rotation of the top block relative to the guide component, which is beneficial to simplify the internal structure of the water pump, thereby helping to reduce the volume of the water pump and also facilitate manufacturing.

[0017] Preferably, the top block and the moving block are in closed spiral cooperation, and the top block moves back and forth in a direction toward the rotating shaft and a direction away from the rotating shaft under the restriction of the guide component.

[0018] In this solution, the top block can hit the rotating shaft multiple times, which is beneficial to increasing the degree of destruction of the bonding force between the rotating shaft and the rotor, and is beneficial to ensuring that the rotor and the rotating shaft can be completely separated.

[0019] Preferably, the water pump further comprises a first resetting member, wherein the first resetting member is connected to the moving block, and the first resetting member drives the moving block to rotate relative to the shaft support by applying a force along the circumference of the rotating shaft to the moving block.

[0020] In this solution, the first reset member is used to drive the moving block to rotate again so that the moving block moves to the original position along the axial direction of the shaft to prepare for the next rotor shaft bonding, so that the moving block and the top block can be recycled for multiple times.

[0021] Preferably, the water pump includes a fixed bracket, the moving block is provided with a fixing groove for inserting the fixed bracket, and the first resetting member is connected to one end of the fixed bracket close to the opening of the fixing groove to be connected to the moving block.

[0022] In this solution, the first reset member is connected to the moving block by using a fixed bracket, which is conducive to improving the connection stability between the first reset member and the moving block. In addition, the insertion method makes installation simple and convenient.

[0023] Preferably, the water pump comprises a relatively fixed first shaft limiting component, the second end of the rotating shaft cooperates with the first shaft limiting component, and a movable space is provided inside the first shaft limiting component.

[0024] In this solution, the rotating shaft can move within the movable space provided by the first shaft limiting component, that is, move within a limited distance, which can prevent the rotating shaft from moving unrestrictedly and affecting the normal operation of the water pump.

[0025] Preferably, a second restoring member is provided in the activity space, one end of the second restoring member abuts against the first shaft limiting component, and the other end of the second restoring member abuts against the rotating shaft.

[0026] In this solution, the second reset member is used to apply a reset force to the shaft, so that the shaft can be reset to the starting position before being hit by the top block, preparing for the next rotor-shaft bonding, that is, the bonding between the rotor and the shaft can be broken multiple times.

[0027] Preferably, the water pump comprises a relatively fixed second shaft limiting component, the second shaft limiting component is arranged on the side where the first end of the rotating shaft is located, and the second shaft limiting component is shared with the guide component or arranged independently of each other.

[0028] In this solution, the second shaft limiting component is used to allow the top block and the rotating shaft to move within a limited distance, thereby preventing the top block and the rotating shaft from falling off due to unrestricted movement and affecting the normal operation of the water pump.

[0029] Preferably, the rotating shaft includes a shaft body and a limiting portion, the shaft body and the limiting portion are coaxially arranged, the limiting portion extends from the end face of the shaft body in a direction away from the shaft body, the moving block is sleeved on the limiting portion, and an end face of the limiting portion away from the shaft body is used for the top block to impact.

[0030] In this solution, the limiting part is arranged at the end of the shaft body, so that after the moving block cooperates with the limiting part, the end surface of the limiting part can be used as the action surface for the top block to hit, which is beneficial to improving the compactness and orderliness of the internal structure of the water pump.

[0031] Preferably, the water pump comprises a gasket, which is sleeved on the rotating shaft and applies a force along the radial direction of the rotating shaft to the rotating shaft.

[0032] In this solution, the gasket can provide certain support to the rotating shaft.

[0033] The positive and progressive effects of the utility model are:

[0034] When the shaft and the rotor are bonded due to impurities, the shaft will rotate around the axial direction of the shaft driven by the rotor, and the moving block will rotate along with the shaft driven by the shaft, and the moving block will move along the axial direction of the shaft when rotating. The circumferential movement of the top block is fixed by the guide component. When the moving block rotates and moves along the axial direction of the shaft, the top block and the moving block rotate relative to each other. The top block will move along the axial direction of the shaft and hit the shaft driven by the moving block. After the impact force from the top block, the shaft will be displaced along the axial direction of the shaft, thereby destroying the bonding force between the shaft and the rotor, and the shaft and the rotor are separated, thus avoiding the situation where the rotor and the shaft are bonded and the pump is stuck. In addition, the bonding force between the rotor and the shaft can be converted into an axial force along the shaft after passing through the moving block and the top block in turn, and then transmitted to the shaft again. In other words, the separation of the shaft and the rotor is automatically achieved by using the bonding force between the shaft and the rotor, without the need for maintenance personnel to operate from the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The figure is a schematic cross-sectional structure diagram of a water pump according to a preferred embodiment of the utility model.

[0036] Figure 2 This is a schematic diagram of the partial structure of a water pump according to a preferred embodiment of the utility model.

[0037] Figure 3 This is a schematic diagram of the partial cross-sectional structure of a water pump according to a preferred embodiment of the utility model.

[0038] Figure 4 This is a perspective structural diagram of a moving block according to a preferred embodiment of the utility model.

[0039] Description of Reference Numerals

[0040] Water pump 100

[0041] Rotor 1

[0042] Reel 2

[0043] Axis body 21

[0044] Limiting part 22

[0045] Axis support 3

[0046] Move Block 4

[0047] Matching portion 41

[0048] Fixed slot 42

[0049] Top block 5

[0050] Guide component 6

[0051] First reset member 7

[0052] Fixed bracket 8

[0053] First axis limiting component 9

[0054] Second restoring member 91

[0055] Second shaft limiting component 10

[0056] Gasket 11 DETAILED DESCRIPTION

[0057] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0058] like Figure 1-Figure 4As shown, this embodiment discloses a water pump 100, including a rotor 1 and a rotating shaft 2, wherein the rotor 1 is sleeved on the rotating shaft 2 and moves circumferentially relative to the rotating shaft 2 with the rotating shaft 2 as the center, and the water pump 100 also includes a shaft support 3, a moving block 4, a top block 5 and a guide component 6, wherein the rotating shaft 2 is arranged to rotate around its axial direction and move within a limited distance along its axial direction; the shaft support 3 and the guide component 6 are both fixed relative to the water pump, and a space is provided in the shaft support 3 for the moving block 4 to move along the axial direction of the rotating shaft 2; the moving block 4 is matched with the first end of the rotating shaft 2, the moving block 4 is fixed relative to the circumference of the rotating shaft 2 and is movably arranged relative to the axial direction of the rotating shaft 2, and the moving block 4 is spirally matched with the shaft support 3; the top block 5 is spirally matched with the moving block 4, and the top block 5 does not rotate relative to the guide component 6 under the restriction of the guide component 6, and the moving block 4 drives the top block 5 to move toward the rotating shaft 2 and hit the rotating shaft 2. The relatively fixed arrangement of the shaft support 3 refers to that the shaft support 3 is fixed inside the water pump 100.

[0059] When the rotating shaft 2 and the rotor 1 are stuck together due to impurities, the rotating shaft 2 will rotate around the axial direction of the rotating shaft 2 driven by the rotor 1, and the moving block 4 will rotate together with the rotating shaft 2 driven by the rotating shaft 2, and the moving block 4 will move along the axial direction of the rotating shaft 2 during rotation. The circumferential movement of the top block 5 is fixed by the guide component 6. When the moving block 4 rotates and moves along the axial direction of the rotating shaft 2, the top block 5 and the moving block 4 produce relative rotation. The top block 5 will move along the axial direction of the rotating shaft 2 and hit the rotating shaft 2 driven by the moving block 4. After the rotating shaft 2 is subjected to the impact force from the top block 5, it will be displaced along the axial direction of the rotating shaft 2, thereby destroying the bonding force between the rotating shaft 2 and the rotor 1, and the rotating shaft 2 is separated from the rotor 1, thus avoiding the situation where the rotor 1 and the rotating shaft 2 are stuck and the water pump 100 is avoided. Furthermore, the bonding force between the rotor 1 and the shaft 2 can be transformed into an axial force along the shaft 2 and transmitted to the shaft 2 again after passing through the moving block 4 and the top block 5 in sequence. In other words, the separation of the shaft 2 and the rotor 1 is automatically achieved by utilizing the bonding force between the shaft 2 and the rotor 1, without the need for maintenance personnel to operate from the outside.

[0060] The spiral fit can be a threaded connection or a spiral guide groove and a projection. In this embodiment, the moving block 4 is threadedly connected to the shaft support 3, and the moving block 4 is connected to the top block 5 by a spiral guide groove and a projection.

[0061] By limiting the rotation of the top block 5 relative to the guide member 6 by the guide member 6, the probability that the top block 5 rotates with the moving block 4 without generating relative rotation can be reduced, which is conducive to ensuring the success rate of the smooth separation of the rotating shaft 2 and the rotor 1. If the top block 5 and the moving block 4 do not generate relative rotation but rotate together as a whole, the top block 5 cannot hit the rotating shaft 2.

[0062] like Figure 2-Figure 4As shown, the moving block 4 includes a matching portion 41. In this embodiment, the matching portion 41 is a spiral groove, and the top block 5 is provided with a protrusion corresponding to the matching portion 41. When the moving block 4 rotates and moves along the axial direction of the rotating shaft 2, the groove and the protrusion slide relative to each other, so that the protrusion is located at a different position relative to the groove, thereby causing the top block 5 to move along the axial direction of the rotating shaft 2 and hit the rotating shaft 2. In other embodiments, the matching portion 41 can be a spiral protrusion, and in this case, the top block 5 is provided with a depression corresponding to the protrusion for matching.

[0063] The guide component 6 has a columnar guide end extending toward the rotating shaft 2, and the top block 5 has a guide hole, which is sleeved on the guide end, and the shapes of the guide hole and the guide end are set to limit relative rotation. Compared with using other additional fixings to fix the top block 5 and the guide component 6, using the shapes of the guide hole and the guide end to limit the rotation of the top block 5 relative to the guide component 6 is conducive to simplifying the internal structure of the water pump 100, thereby helping to reduce the volume of the water pump 100, and on the other hand, it is also easy to manufacture. Specifically, the shape of the guide hole and the guide end can be prismatic, semicircular or any other shape that can limit relative rotation.

[0064] The top block 5 and the moving block 4 are in a closed spiral fit, and the top block 5 moves back and forth in the direction toward the rotating shaft 2 and away from the rotating shaft 2 under the restriction of the guide component 6, so that the top block 5 can hit the rotating shaft 2 multiple times, which is beneficial to increase the degree of destruction of the bonding force between the rotating shaft 2 and the rotor 1, and is beneficial to ensure that the rotor 1 and the rotating shaft 2 can be completely separated. Specifically, Figure 4 As shown, the moving block 4 is provided with an oblique circular ring-shaped groove for the top block 5 to cooperate with.

[0065] like Figure 2 and Figure 3 As shown, in this embodiment, the water pump 100 also includes a first reset member 7, which is connected to the moving block 4. The first reset member 7 applies a force along the circumferential direction of the rotating shaft 2 to the moving block 4 to drive the moving block 4 to rotate relative to the shaft support 3. After the moving block 4 rotates with the rotating shaft 2 and moves along the axial direction of the rotating shaft 2, the first reset member 7 drives the moving block 4 to rotate again so that the moving block 4 moves to the initial position along the axial direction of the rotating shaft 2, preparing for the next bonding of the rotor 1 to the rotating shaft 2, so that the moving block 4 and the top block 5 can be used repeatedly, and the service life of the water pump 100 is also extended. In other embodiments, the first reset member 7 may not be provided, and the number of times the moving block 4 and the top block 5 are used to break the bonding of the rotor 1 to the rotating shaft 2 is limited.

[0066] Specifically, the first reset member 7 can be a coil spring or other elastic components, or a mechanical drive structure. When the first reset member 7 is an elastic component, when the moving block 4 rotates around the axis of the shaft 2, the first reset member 7 rotates with the moving block 4 and deforms under force during rotation to accumulate energy. After the shaft 2 is separated from the rotor 1, the moving block 4 stops rotating with the shaft 2, and the first reset member 7 starts to release the reverse force to move the moving block 4 to the original position.

[0067] The water pump 100 includes a fixed bracket 8, and the moving block 4 is provided with a fixed groove 42 for inserting the fixed bracket 8. The first reset member 7 is connected to the end of the fixed bracket 8 close to the opening of the fixed groove 42 to be connected to the moving block 4. The first reset member 7 is connected to the moving block 4 by using the fixed bracket 8, which is conducive to improving the connection stability between the first reset member 7 and the moving block 4. And the insertion method makes the installation simple and convenient. Specifically, the moving block 4 is provided with a plurality of fixed grooves 42, and the plurality of fixed grooves 42 are arranged at equal intervals along the circumference of the moving block 4, which is conducive to improving the uniformity of the reverse force from the first reset member 7 to the moving block 4, and ensuring the stability of the moving block 4 when resetting.

[0068] like Figure 1 As shown, the water pump 100 includes a relatively fixed first shaft limiting component 9, the second end of the rotating shaft 2 cooperates with the first shaft limiting component 9, and a movable space is arranged inside the first shaft limiting component 9, that is, the rotating shaft 2 can move within the movable space provided by the first shaft limiting component 9, that is, it can move within a limited distance, thus preventing the rotating shaft 2 from moving unrestrictedly and affecting the normal operation of the water pump 100.

[0069] A second reset member 91 is provided in the activity space, one end of the second reset member 91 abuts against the first shaft limiting member 9, and the other end abuts against the rotating shaft 2. The second reset member 91 is used to apply a reset force to the rotating shaft 2, so that the rotating shaft 2 can be reset to the starting position before being hit by the top block 5, in preparation for the next bonding of the rotor 1 and the rotating shaft 2, that is, the bonding between the rotor 1 and the rotating shaft 2 can be broken multiple times in a cycle. Specifically, the second reset member 91 can be a spring, or other mechanical structure that can generate an axial force along the rotating shaft 2. In other embodiments, the second reset member 91 may not be provided, and the number of times the bonding of the rotor 1 and the rotating shaft 2 is broken is limited.

[0070] like Figure 1 and Figure 2As shown, in this embodiment, the water pump 100 includes a relatively fixed second shaft limiting component 10, which is arranged on the side where the first end of the rotating shaft 2 is located, and the second shaft limiting component 10 is shared with the guide component 6, that is, the second shaft limiting component 10 is formed by using the guide component 6, and specifically, a baffle integrated with the guide component 6 can be arranged at the end of the guide component 6 facing away from the rotating shaft 2, and the baffle is used to make the top block 5 and the rotating shaft 2 move within a limited distance, so as to avoid problems such as the top block 5 and the rotating shaft 2 falling off due to unrestricted movement, thereby affecting the normal operation of the water pump 100. In other embodiments, the second shaft limiting component 10 and the guide component 6 can be arranged independently of each other, that is, an independent baffle is arranged on the axial outer side of the guide component 6 to limit the movement of the top block 5 and the rotating shaft 2.

[0071] The rotating shaft 2 includes a shaft body 21 and a limiting portion 22. The shaft body 21 and the limiting portion 22 are coaxially arranged. The limiting portion 22 extends from the end face of the shaft body 21 in a direction away from the shaft body 21. The moving block 4 is sleeved on the limiting portion 22. One end face of the limiting portion 22 away from the shaft body 21 is used for the top block 5 to hit. The limiting portion 22 is arranged at the end of the shaft body 21, so that after the moving block 4 cooperates with the limiting portion 22, the end face of the limiting portion 22 can be used as an action surface for the top block 5 to hit, which is conducive to improving the compactness and orderliness of the internal structure of the water pump 100. Specifically, the shape of the moving block 4 and the limiting portion 22 is set to limit relative rotation, and the shape can be prismatic, semicircular or any other shape that can limit relative rotation.

[0072] The water pump 100 includes a gasket 11 , which is sleeved on the rotating shaft 2 and applies a force along the radial direction of the rotating shaft 2 to the rotating shaft 2 , so that the gasket 11 can provide certain support for the rotating shaft 2 .

[0073] The specific operation process of the water pump 100 is as follows: when the gap between the rotor 1 and the rotating shaft 2 is not bonded by impurities, the rotating shaft 2 does not rotate, and the rotor 1 moves circumferentially around the rotating shaft 2; when the rotor 1 and the rotating shaft 2 are bonded by impurities, the rotating shaft 2 rotates around its axis driven by the rotor 1, and the rotating shaft 2 then drives the moving block 4 to rotate, the moving block 4 rotates and moves upward along the axial direction of the rotating shaft 2, and the moving block 4 then drives the top block 5 to reciprocate along the axial direction of the rotating shaft 2 to hit the rotating shaft 2 multiple times to destroy the bonding force between the rotating shaft 2 and the rotor 1, so that the two are separated. After the rotor 1 and the rotating shaft 2 are separated, the rotating shaft 2 stops rotating, and the moving block 4 moves downward to the starting position under the action of the first reset member 7, and moves downward to the starting position under the action of the second reset member 91 of the rotating shaft 2. When the rotor 1 and the rotating shaft 2 are bonded again due to impurities, the previous process is repeated.

[0074] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A water pump, comprising a rotor and a rotating shaft, wherein the rotor is sleeved on the rotating shaft and moves circumferentially relative to the rotating shaft with the rotating shaft as the center, characterized in that: The water pump further comprises a shaft support, a moving block, a top block and a guide component, wherein: The rotating shaft is configured to rotate about its axial direction and move within a limited distance along its axial direction; The shaft support and the guide component are both fixedly arranged relative to the water pump, and a space is provided in the shaft support for the moving block to move along the axial direction of the rotating shaft; The moving block is matched with the first end of the rotating shaft, the moving block is fixed relative to the circumference of the rotating shaft and is movably arranged relative to the axial direction of the rotating shaft, and the moving block is spirally matched with the shaft support; The top block is screw-matched with the moving block. The top block does not rotate relative to the guide component under the restriction of the guide component. The moving block drives the top block to move toward the rotating shaft and hit the rotating shaft.

2. The water pump according to claim 1, characterized in that The moving block comprises a matching portion, which is a spiral protrusion or groove, and the top block is provided with a depression or a protrusion corresponding to the matching portion for matching.

3. The water pump according to claim 1, characterized in that: The guide component has a columnar guide end extending toward the rotating shaft, and the top block has a guide hole, which is sleeved on the guide end. The shapes of the guide hole and the guide end are configured to limit relative rotation.

4. The water pump according to claim 1, characterized in that The top block and the moving block are in closed spiral cooperation, and the top block reciprocates in a direction toward the rotating shaft and in a direction away from the rotating shaft under the restriction of the guide component.

5. The water pump according to claim 1, characterized in that: The water pump further comprises a first resetting member, which is connected to the moving block. The first resetting member applies a force along the circumference of the rotating shaft to the moving block to drive the moving block to rotate relative to the shaft support.

6. The water pump according to claim 5, characterized in that The water pump comprises a fixed bracket, the moving block is provided with a fixed groove for inserting the fixed bracket, and the first reset member is connected to one end of the fixed bracket close to the opening of the fixed groove to be connected to the moving block.

7. The water pump according to claim 1, characterized in that The water pump comprises a relatively fixed first shaft limiting component, the second end of the rotating shaft cooperates with the first shaft limiting component, and a movable space is arranged inside the first shaft limiting component.

8. The water pump according to claim 7, characterized in that A second restoring member is arranged in the activity space, one end of the second restoring member abuts against the first shaft limiting component, and the other end of the second restoring member abuts against the rotating shaft.

9. The water pump according to claim 1, characterized in that: The water pump comprises a relatively fixed second shaft limiting component, the second shaft limiting component is arranged on the side where the first end of the rotating shaft is located, and the second shaft limiting component is shared with the guiding component or arranged independently of each other.

10. The water pump according to claim 1, characterized in that The rotating shaft includes a shaft body and a limiting portion, the shaft body and the limiting portion are coaxially arranged, the limiting portion extends from the end surface of the shaft body in a direction away from the shaft body, the moving block is sleeved on the limiting portion, and an end surface of the limiting portion away from the shaft body is used for the top block to impact.

11. The water pump according to claim 1, characterized in that The water pump comprises a gasket, which is sleeved on the rotating shaft and applies a force in the radial direction of the rotating shaft to the rotating shaft.

Images