CN217152099U - Liquid leakage prevention structure for water collecting tank of water pump - Google Patents

Abstract

The utility model discloses a liquid structure is prevented running by water pump water catch bowl is provided with the water catch bowl through leading-out hole and installation cavity intercommunication in the water pump shell, and the overflow outlet with external intercommunication is seted up to the outer end of this water catch bowl, is provided with the undulation texture that is used for preventing the coolant liquid to flow to the overflow outlet on the water catch bowl cell wall. The water pump water catch bowl prevents the liquid leakage structure above adopting, through set up the undulation texture on the water catch bowl cell wall between delivery port and overflow mouth, can avoid directly flowing out from the overflow mouth along the cell wall from the coolant liquid that the delivery port got into the water catch bowl to guide the coolant liquid to the storage position of water catch bowl, thereby can no longer appear not having ageing water pump but the problem that the suggestion needs the dimension to protect, avoided the wrong report, promoted the reliability that the water pump used.

Description

Liquid leakage prevention structure for water collecting tank of water pump

Technical Field

The utility model relates to an engine water pump technical field, concretely relates to liquid structure is prevented running by water pump water catch bowl.

Background

The automobile water pump is used for pumping hot water out of the water channel of the engine cylinder body and pumping cold water into the water channel of the engine cylinder body. The existing water pump usually avoids the coolant on one side of the impeller to gush into the mounting cavity of the water pump housing by arranging the water seal, but because the bearing mandrel continuously rotates at a high speed, the coolant in a trace amount enters the mounting cavity through the tiny gap between the water seal dynamic and static rings in the daily working condition. In order to avoid the gathering of the cooling liquid in the installation cavity and avoid that the cooling liquid breaks through the sealing cover of the bearing after soaking the bearing for a long time, enters the inside of the bearing, damages the bearing and disables the whole water pump, the cooling liquid is usually led into a water collecting tank specially arranged on a water pump shell through a guide-out hole, and under the normal condition, due to the loss of evaporation and the like, the cooling liquid is in a dynamic balance state in the water collecting tank and cannot overflow from an overflow outlet of the water collecting tank. When the coolant fills the water collection tank and overflows from the overflow port of the water collection tank, the seal elements such as a water seal of the water pump are aged and failed, and need to be repaired or replaced.

However, the walls of the existing water collecting tank are designed to be very smooth, and the coolant which is dropped into the water collecting tank from the outlet hole is not collected in the water collecting tank at all, but directly flows out from the overflow outlet along the walls of the water collecting tank under the action of the adhesive force between the liquid molecules and the walls of the water collecting tank, so that the water pump is not aged or failed at all when being detached and inspected, and is not required to be maintained or replaced, thereby causing misleading.

It is urgent to solve the above problems.

SUMMERY OF THE UTILITY MODEL

For solving the above technical problem, the utility model provides a liquid structure is prevented running by water pump water catch bowl.

The technical scheme is as follows:

the utility model provides a liquid structure is prevented running by water pump water catch bowl, includes water pump shell and water pump bearing, the bearing outer lane interference fit of water pump bearing installs in the installation cavity of water pump shell, and the water pump shell is all outwards worn out at the both ends of the bearing dabber of this water pump bearing, the one end that the bearing outer lane was kept away from to the installation cavity is provided with the water seal, the one end that the bearing dabber was worn out from the water seal is connected with rather than synchronous pivoted impeller, and its main points lie in: the water pump is characterized in that a water collecting tank communicated with the mounting cavity through a guide hole is arranged in the water pump shell, an overflow outlet communicated with the outside is formed in the outer end of the water collecting tank, and undulating grains used for preventing cooling liquid from flowing to the overflow outlet are arranged on the wall of the water collecting tank between the guide hole and the overflow outlet.

Preferably, the method comprises the following steps: the undulating texture is a thread structure.

By adopting the structure, the internal thread structure is easily added on the groove wall of the water collecting tank, the water retaining effect is good, and the cooling liquid which directly flows to the overflow outlet on the groove wall can be reliably blocked, so that the cooling liquid can be dripped into the water collecting tank from the groove wall to be collected in a centralized manner.

Preferably, the method comprises the following steps: the undulation texture is located in the middle section of the water collecting tank.

Structure more than adopting, the position is reasonable, can ensure that the coolant liquid can not follow the direct flow direction overflow mouth on the cell wall, but leads the coolant liquid to the inside concentrated collection position of water catch bowl.

Preferably, the method comprises the following steps: the outer end of the water collecting tank is of an open structure and is blocked through the blocking cover, a notch is formed in the groove wall of one end, adjacent to the blocking cover, of the water collecting tank in a sunken mode, and the groove wall of the notch and the outer edge of the blocking cover surround to form the overflow outlet.

By adopting the structure, the water collecting tank and the overflow port are easy to form, and the machine processing of the relief textures such as threads and the like in later-stage procedures is facilitated.

Preferably, the method comprises the following steps: the overflow outlet is positioned at the upper part or the middle upper part of the outer edge of the blocking cover.

By adopting the structure, more cooling liquid can be collected in the water collecting tank.

Preferably, the method comprises the following steps: the outlet hole is of a straight hole structure which is obliquely arranged, the inlet end of the outlet hole is obliquely towards the water seal, and the outlet end of the outlet hole is obliquely towards the blanking cover.

With the structure, the cooling liquid in the mounting cavity is guided to the water collecting tank.

Preferably, the method comprises the following steps: and sealing covers are arranged at two ends of the bearing outer ring.

By adopting the structure, the waterproof and dustproof effects can be effectively achieved.

Compared with the prior art, the beneficial effects of the utility model are that:

the water pump water catch bowl prevents the liquid leakage structure above adopting, through set up the undulation texture on the water catch bowl cell wall between delivery port and overflow mouth, can avoid directly flowing out from the overflow mouth along the cell wall from the coolant liquid that the delivery port got into the water catch bowl to guide the coolant liquid to the storage position of water catch bowl, thereby can no longer appear not having ageing water pump but the problem that the suggestion needs the dimension to protect, avoided the wrong report, promoted the reliability that the water pump used.

Drawings

FIG. 1 is a cross-sectional view of a water pump;

fig. 2 is an external structural diagram of the water pump.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in figure 1, a water pump water collecting tank leakage-proof structure mainly comprises a water pump shell 1 and a water pump bearing, wherein a mounting cavity 11 and a water collecting tank 13 are arranged in the water pump shell 1.

The water pump bearing comprises a bearing mandrel 2, a bearing outer ring 3, and balls and needle rollers which are arranged between the bearing mandrel 2 and the bearing outer ring 3, wherein the bearing mandrel 2 can rotate freely relative to the bearing outer ring 3 by arranging the balls and the needle rollers. The bearing outer ring 3 is installed in the installation cavity 11 of the water pump shell 1 in an interference fit manner, the two ends of the bearing mandrel 2 of the water pump bearing penetrate out of the water pump shell 1, the bearing mandrel 2 is rotatably installed in the installation cavity 11 through the bearing outer ring 3, one end, away from the bearing outer ring 3, of the installation cavity 11 is provided with a water seal 4, and one end, penetrated out of the bearing mandrel 2 from the water seal 4, of the bearing mandrel 2 is connected with an impeller 5 rotating synchronously with the bearing mandrel. In this embodiment, the bearing outer ring 3 and the water seal 4 are respectively located at two ends of the installation cavity 11, and two ends of the bearing mandrel 2 respectively penetrate out of the bearing outer ring 3 and the water seal 4.

Referring to fig. 1 and 2, the installation chamber 11 and the water collection tank 13 are communicated through the lead-out hole 12, so that the cooling liquid entering the installation chamber 11 through the gap between the bearing mandrel and the water seal can be introduced into the water collection tank 13. Since the outer end of the water collection tank 13 is opened with the overflow port 131 communicating with the outside, in order to prevent the coolant from entering the water collection tank 13 from the outlet hole 12 and directly flowing out of the overflow port 131 along the tank wall, the tank wall of the water collection tank 13 between the outlet hole 12 and the overflow port 131 is provided with the undulation texture 132 for preventing the coolant from flowing to the overflow port 131. The undulating texture 132 refers to the texture with undulations, can change the smooth structure of the slot wall of the water collecting tank 13, therefore, by setting up the undulating texture 132 that is not smooth, the effect of adhesive force can be blocked by the appropriate undulating texture 132, make the coolant liquid not flow along the slot wall here, as the coolant liquid gathered here is enough, when the gravity of the liquid mass is more than the adhesive force, the coolant liquid will drop into the water collecting tank 13, thereby realize the purpose of changing the flow path of the coolant liquid on the slot wall of the water collecting tank 13, the problem that the water pump without aging but the prompt needs maintenance can no longer appear, the misinformation is avoided, and the reliability of the use of the water pump is improved.

Referring to fig. 1, the undulating texture 132 in the present embodiment is preferably a thread structure, which not only facilitates the application of an internal thread structure on the wall of the water collecting tank 13, but also has a good water retaining effect, and can reliably block the coolant flowing directly to the overflow outlet on the wall of the water collecting tank 13, so that the coolant can drip from the wall of the water collecting tank 13 and be collected in a concentrated manner. Further, the raised grain 132 is located in the middle of the water collection tank 13, and is positioned reasonably to ensure that the coolant does not flow directly from the tank wall to the overflow outlet, but rather, the coolant is guided to a centralized collection location inside the water collection tank 13.

Referring to fig. 1 and 2, the outer end of the water collecting tank 13 is of an open structure and is blocked by the blocking cover 6, a slot is formed on a slot wall at one end of the water collecting tank 13 adjacent to the blocking cover 6 in a recessed manner, a slot wall of the slot and the outer edge of the blocking cover 6 surround to form an overflow outlet 131, and by the design that a large-size opening of the water collecting tank 13 is matched with the large-caliber blocking cover 6, the water collecting tank 13 and the overflow outlet 131 are easy to form and relief textures such as threads and the like are convenient to machine in a later process, for example, the water pump housing 1 can be integrally cast and formed, the relief textures 132 of the internal thread structure can be formed on the slot wall of the water collecting tank 13 by machining, the process is simple and reliable, and the blocking is finally blocked by the blocking cover 6.

Referring to fig. 2, the overflow port 131 is located at an upper or middle upper portion of the outer edge of the blocking cover 6, so that more coolant can be collected in the water collecting tank 13.

Referring to fig. 1, the outlet 12 is a straight hole structure with an inclined arrangement, the inlet end of the outlet 12 is inclined towards the water seal 4, and the outlet end of the outlet 12 is inclined towards the plug cover 6, that is: the outlet holes 12 extend obliquely from the inlet end towards the closing cap 6 to the outlet end to facilitate better guiding of the cooling liquid in the installation chamber 11 into the water collection sump 13.

Moreover, the sealing covers 31 are arranged at the two ends of the bearing outer ring 3, so that the waterproof and dustproof effects can be effectively achieved, dust and impurities are prevented from entering the installation cavity 11, and the cooling liquid is prevented from overflowing from the bearing outer ring 3.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (7)

1. The utility model provides a liquid structure is prevented running by water pump water catch bowl, includes water pump housing (1) and water pump bearing, install in installation cavity (11) of water pump housing (1) with bearing outer lane (3) interference fit of water pump bearing, water pump housing (1) is all outwards worn out at the both ends of this water pump bearing's bearing dabber (2), the one end of keeping away from bearing outer lane (3) in installation cavity (11) is provided with water seal (4), the one end that bearing dabber (2) were worn out from water seal (4) is connected with rather than synchronous pivoted impeller (5), its characterized in that: the water pump shell (1) is internally provided with a water collecting tank (13) communicated with the installation cavity (11) through a guide-out hole (12), the outer end of the water collecting tank (13) is provided with an overflow outlet (131) communicated with the outside, and the wall of the water collecting tank (13) between the guide-out hole (12) and the overflow outlet (131) is provided with a fluctuated texture (132) for preventing cooling liquid from flowing to the overflow outlet (131).

2. The water pump sump of claim 1, wherein: the undulating texture (132) is a thread structure.

3. The water pump sump liquid leakage prevention structure according to claim 1 or 2, wherein: the undulating texture (132) is located in the middle section of the water collection tank (13).

4. The water pump sump of claim 1, wherein: the outer end of water catch bowl (13) is open structure to carry out the shutoff through blanking cover (6), water catch bowl (13) and the adjacent one end cell wall of blanking cover (6) are sunken to be formed with scarce groove, and the cell wall of this scarce groove surrounds with the outer fringe of blanking cover (6) and forms overflow mouth (131).

5. The water pump sump of claim 4, wherein: the overflow outlet (131) is positioned at the upper part or the middle upper part of the outer edge of the blocking cover (6).

6. The water pump sump of claim 4, wherein: the leading-out hole (12) is of a straight hole structure which is obliquely arranged, the inlet end of the leading-out hole (12) is obliquely towards the water seal (4), and the outlet end of the leading-out hole (12) is obliquely towards the blanking cover (6).

7. The water pump sump of claim 1, wherein: and sealing covers (31) are arranged at two ends of the bearing outer ring (3).

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