Automobile water pump shell

Abstract

The utility model discloses an automobile water pump shell which comprises a pump shell, one side of the pump shell is connected with an input shaft body, one end of the input shaft body is sleeved with a belt wheel, the input shaft body and the interior of the belt wheel are in threaded connection with a screw rod, the end, away from the input shaft body, of the screw rod is fixedly connected with a rotating block, and the side wall of one side of the belt wheel is fixedly connected with a positioning ring. The rotating block is clamped in an inner cavity of the positioning ring, a receding groove is formed in the inner wall of the positioning ring, a locking assembly for preventing the screw from loosening is arranged in the receding groove, and the bottom end of the locking assembly is inserted into the rotating block. When the automobile water pump needs to be disassembled and overhauled, the rotating block can be screwed by using a tool, so that the screw rod can be disassembled, the belt pulley can be taken down from the input shaft body, a belt is taken down in a safe mode, and after the belt pulley is installed, the rotating block can be clamped and positioned through the arranged locking assembly; and the use safety and stability of the water pump are further improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive water pump housing. Background Technology

[0002] In automotive cooling systems, the water pump housing plays a crucial role. Its core working principle lies in the pulley system designed on one side of the water pump housing. This pulley is driven by a belt driven by the engine crankshaft. This design ensures that power can be effectively transmitted to the other side of the water pump housing, thereby driving the impeller to rotate. The rotation of the impeller is key to the circulation of coolant. It can draw coolant from the water pump housing and pump it to the cooling pipe network inside the engine through pressurization. This process is essential for maintaining the engine's operation within the normal temperature range and effectively prevents performance degradation or damage caused by overheating.

[0003] However, when a car water pump circulation system malfunctions and requires disassembly and inspection, the disassembly process is often complex and time-consuming due to the tight fit between the pulley and the engine belt. Traditional disassembly methods usually involve manually pulling the belt off, which is not only inefficient but may also cause unnecessary physical damage to the belt, such as stretching deformation or surface wear, thereby affecting the belt's service life and transmission efficiency. Therefore, we need to propose a new type of car water pump housing. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive water pump housing, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A car water pump housing includes a pump housing, an input shaft connected to one side of the pump housing, a pulley fitted at one end of the input shaft, a screw threadedly connected to the input shaft and the pulley, a rotating block fixedly connected to the end of the screw away from the input shaft, a positioning ring fixedly connected to one side wall of the pulley, the rotating block engaging with the inner cavity of the positioning ring, a clearance groove formed on the inner wall of the positioning ring, a locking component provided inside the clearance groove to prevent the screw from loosening, and the bottom end of the locking component being inserted into the interior of the rotating block.

[0007] Preferably, the locking assembly includes a locking block, which is slidably inserted into the interior of the clearance groove. A return spring is fixedly connected to the top of the locking block, and the top of the return spring is fixedly connected to the inner top of the clearance groove. The bottom of the locking block is inserted into the interior of the rotating block.

[0008] Preferably, the top of the rotating block is provided with a positioning groove, and the bottom of the clamping block is provided with a wedge-shaped part that matches the positioning groove, and the wedge-shaped part is inserted into the interior of the positioning groove.

[0009] Preferably, a sliding rod is fixedly connected to the top of the clamping block, and a protrusion is fixedly connected to the top of the sliding rod through the positioning ring.

[0010] Preferably, the top of the positioning ring has a through hole, and the slide rod is slidably inserted into the inside of the through hole.

[0011] Preferably, the positioning ring has a stepped hole at the top of the through hole that matches the protrusion, and the protrusion is engaged inside the stepped hole.

[0012] Preferably, a slot adapted to the input shaft is provided on one side wall of the pulley, and the end of the input shaft is inserted into the slot.

[0013] Preferably, the pulley has a mounting hole on the side away from the input shaft that matches the screw, and one end of the screw passes through the mounting hole and is threaded into the inside of the input shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features a positioning ring on one side of the pulley, which works in conjunction with a screw, a rotating block, a clearance groove, and a locking assembly. When the car water pump needs to be disassembled and repaired, the rotating block can be turned with a tool to disassemble the screw, allowing the pulley to be removed from the input shaft. This safe method of removing the belt avoids affecting its service life. After the pulley is installed, the locking assembly secures the rotating block, preventing the screw from loosening during the use of the car water pump. This further improves the safety and stability of the water pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the input shaft and pulley of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the pulley and slot of this utility model;

[0019] Figure 4 This is a schematic diagram of the locking assembly of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Pump housing; 2. Input shaft; 3. Pulley; 4. Screw; 5. Rotating block; 6. Positioning ring; 7. Relief groove; 8. Locking assembly; 801. Clamping block; 802. Return spring; 9. Positioning groove; 10. Wedge-shaped part; 11. Slide rod; 12. Protrusion; 13. Through hole; 14. Stepped hole; 15. Slot; 16. Mounting hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A car water pump housing includes a pump housing 1, an input shaft 2 connected to one side of the pump housing 1, a pulley 3 sleeved on one end of the input shaft 2, a screw 4 threadedly connected to the input shaft 2 and the pulley 3, a rotating block 5 fixedly connected to the end of the screw 4 away from the input shaft 2, a positioning ring 6 fixedly connected to one side wall of the pulley 3, the rotating block 5 engaging with the inner cavity of the positioning ring 6, a clearance groove 7 provided on the inner wall of the positioning ring 6, a locking component 8 provided inside the clearance groove 7 to prevent the screw 4 from loosening, and the bottom end of the locking component 8 being inserted into the interior of the rotating block 5.

[0025] This invention features a positioning ring 6 on one side of the pulley 3, which works in conjunction with the screw 4, rotating block 5, clearance groove 7, and locking assembly 8. When the car water pump needs to be disassembled and repaired, the rotating block 5 can be turned with a tool to disassemble the screw 4, allowing the pulley 3 to be removed from the input shaft. This safe method of removing the belt avoids affecting its service life. After the pulley 3 is installed, the locking assembly 8 can lock the rotating block 5 in place, preventing the screw 4 from loosening during the use of the car water pump. This further improves the safety and stability of the water pump.

[0026] Furthermore, the locking assembly 8 includes a locking block 801, which is slidably inserted into the interior of the relief groove 7. A return spring 802 is fixedly connected to the top of the locking block 801, and the top of the return spring 802 is fixedly connected to the inner top of the relief groove 7. The bottom of the locking block 801 is inserted into the interior of the rotating block 5.

[0027] The above design, through the cooperation of the clamping block 801 and the return spring 802, after the screw 4 is threaded into the inside of the input shaft 2, the return spring 802 can drive the clamping block 801 to be inserted into the inside of the rotating block 5, thereby preventing the screw 4 from becoming loose, which is conducive to further improving the stability and safety of the car water pump.

[0028] Furthermore, the top of the rotating block 5 is provided with a positioning groove 9, and the bottom of the clamping block 801 is provided with a wedge-shaped part 10 that matches the positioning groove 9. The wedge-shaped part 10 is inserted into the interior of the positioning groove 9. The above design, through the cooperative use of the positioning groove 9 and the wedge-shaped part 10, serves to limit the rotation block 5 and prevent it from becoming loose. When the rotating block 5 rotates in the inner cavity of the positioning ring 6, the outer wall of the rotating block 5 will exert a squeezing force on the wedge-shaped part 10. At this time, the clamping block 801 slides towards the inner top of the relief groove 7. At this time, the return spring 802 is in a compressed state. When the screw 4 is installed in place, the bottom of the wedge-shaped part 10 is aligned with the top of the positioning groove 9. The rebound force of the return spring 802 can then drive the wedge-shaped part 10 to be firmly inserted into the interior of the positioning groove 9, thereby achieving the effect of clamping and positioning the rotating block 5, and effectively preventing the screw 4 from shaking.

[0029] Furthermore, a slide rod 11 is fixedly connected to the top of the clamping block 801, and the top of the slide rod 11 passes through the positioning ring 6 and is fixedly connected to the protrusion 12. With the above design, when it is necessary to disassemble the pulley 3, the slide rod 11 can be pulled upward, thereby driving the clamping block 801 to move upward. At this time, the return spring 802 is in a compressed state until the clamping block 801 separates from the positioning groove 9. Then, the rotating block 5 is turned with a tool until the screw 4 separates from the input shaft 2. At this time, the pulley 3 can be directly pulled out from the input shaft 2, thus completing the disassembly operation of the pulley 3.

[0030] Furthermore, the top of the positioning ring 6 has a through hole 13, and the slide rod 11 is slidably inserted into the inside of the through hole 13. The top of the positioning ring 6 in the through hole 13 has a stepped hole 14 that matches the protrusion 12. The protrusion 12 is engaged inside the stepped hole 14, and the protrusion 12 is made of iron. With the above design, a strong magnet can be used to attract and connect it, and pulling it upward will move the slide rod 11 upward.

[0031] Furthermore, a slot 15 adapted to the input shaft 2 is provided on one side wall of the pulley 3. The end of the input shaft 2 is inserted into the slot 15. Two sets of grooves are provided on the inner wall of the slot 15, and two sets of protrusions adapted to the grooves are provided on the outer wall of the input shaft 2. The two sets of protrusions are respectively engaged in the two sets of grooves. The above design can limit the input shaft 2, so that the pulley 3 can drive the input shaft 2 to rotate.

[0032] Furthermore, the pulley 3 has a mounting hole 16 on the side away from the input shaft 2 that matches the screw 4. One end of the screw 4 passes through the mounting hole 16 and is threaded into the interior of the input shaft 2. The interior of the input shaft 2 has a threaded blind hole that matches the screw 4, and the screw 4 is threaded into the interior of the threaded blind hole.

[0033] Working principle: When it is necessary to disassemble pulley 3, the slide bar 11 can be pulled upward first, which can drive the clamping block 801 to move upward. At this time, the return spring 802 is in a compressed state until the clamping block 801 separates from the positioning groove 9. Then, use a tool to turn the rotating block 5 until the screw 4 separates from the input shaft 2. At this time, the pulley 3 can be directly pulled out from the input shaft 2, thus completing the disassembly of pulley 3. When the worker reinstalls pulley 3, when the rotating block 5 rotates in the inner cavity of the positioning ring 6, the outer wall of the rotating block 5 will exert a squeezing force on the wedge part 10. At this time, the clamping block 801 slides towards the inner top of the relief groove 7. At this time, the return spring 802 is in a compressed state. When the screw 4 is installed in place, the bottom of the wedge part 10 is aligned with the top of the positioning groove 9. The rebound force of the return spring 802 can be used to drive the wedge part 10 to be firmly inserted into the inside of the positioning groove 9, thereby effectively preventing the screw 4 from shaking.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An automotive water pump housing comprising a pump housing, characterized by: One side of the pump shell is connected with an input shaft body, one end of the input shaft body is sleeved with a belt pulley, the inside of the input shaft body and the belt pulley is threadedly connected with a screw rod, the end, away from the input shaft body, of the screw rod is fixedly connected with a rotating block, one side wall of the belt pulley is fixedly connected with a positioning ring, the rotating block is clamped in the inner cavity of the positioning ring, the inner wall of the positioning ring is provided with a let-out slot, the inside of the let-out slot is provided with a locking assembly for preventing the screw rod from loosening, and the bottom end of the locking assembly is inserted into the inside of the rotating block.

2. The water pump housing of claim 1, wherein: The locking assembly comprises a clamping block, the clamping block is slidingly inserted into the inside of the let-out slot, the top of the clamping block is fixedly connected with a return spring, the top end of the return spring is fixedly connected with the inner top of the let-out slot, and the bottom of the clamping block is inserted into the inside of the rotating block.

3. The automotive water pump housing of claim 2, wherein: The top of the rotating block is provided with a positioning slot, the bottom of the clamping block is provided with a wedge-shaped part matched with the positioning slot, and the wedge-shaped part is inserted into the inside of the positioning slot.

4. The automotive water pump housing of claim 3, wherein: The top of the clamping block is fixedly connected with a sliding rod, the top end of the sliding rod penetrates through the positioning ring and is fixedly connected with a protruding block.

5. The automotive water pump housing of claim 4, wherein: The top of the positioning ring is provided with a through hole, and the sliding rod is slidingly inserted into the inside of the through hole.

6. An automotive water pump housing as claimed in claim 5, characterized in that: The top of the positioning ring is provided with a stepped hole matched with the protruding block, and the protruding block is clamped in the inside of the stepped hole.

7. The automotive water pump housing of claim 1, wherein: One side wall of the belt pulley is provided with an insertion slot matched with the input shaft body, and the end of the input shaft body is inserted into the inside of the insertion slot.

8. The automotive water pump housing of claim 1, wherein: The side, away from the input shaft body, of the belt pulley is provided with a mounting hole matched with the screw rod, one end of the screw rod penetrates through the mounting hole and is threadedly connected with the inside of the input shaft body.

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