High-strength plastic water pump protective shell

Abstract

The utility model discloses a high-strength plastic water pump protective shell, belongs to the field of water pump shells, and aims to solve the problem that friction is generated between a plastic water pump shell and an internal mechanical structure due to continuous vibration. The flange assembly comprising the rubber buffer column and the rubber gasket is arranged between the water pump shell and the bearing base shell, when the water pump operates, vibration force borne by the flange plate can be effectively absorbed by the rubber buffer column and the rubber gasket, and therefore the influence of vibration on a connecting piece is reduced; the flange plate, the rubber gasket and the flange ring can be firmly connected together through the connecting piece, the transverse locking block can be pushed to be clamped with the locking groove in the sleeving ring through the action of the extrusion disc and the connecting spring, and the strength of the water pump protection shell is further enhanced.

Description

Technical Field

[0001] The utility model relates to the field of water pump casings, and more specifically, to a high-strength plastic water pump protective casing. Background Art

[0002] The plastic water pump casing is a key component meticulously crafted from high-performance engineering plastics, designed specifically for water pumps to provide comprehensive protection and support. It utilizes advanced injection molding technology to inject molten plastic into a precision mold, and after cooling and solidification, a strong and durable casing structure is formed. This casing not only has the characteristics of light weight and high strength, greatly reducing the overall weight compared to traditional metal materials, facilitating installation, handling, and maintenance, but also maintains excellent mechanical properties and corrosion resistance. The plastic water pump casing can resist the erosion of various chemical substances, including harsh media such as acid-base solutions and brine, ensuring that the water pump can still operate stably in a corrosive environment.

[0003] As known from the patent number 201420002166.2, a plastic automotive water pump housing is disclosed, which includes a water inlet, a mounting hole, a bearing chamber center hole, a water outlet hole, and a fixing hole. Its characteristic is that the housing is composed of two or more split housings with a joint surface, and the joint surfaces of the split housings are joined together by welding or bonding. Compared with the prior art, the utility model has the advantages of light weight, strong corrosion resistance and oxidation resistance, strength and wear resistance not lower than that of metal materials, but the cost is far lower than that of metal materials. At the same time, the production efficiency is high and it is environmentally friendly.

[0004] During the operation of the water pump, continuous vibration will cause friction between the plastic water pump casing and the internal mechanical structure. This friction will accelerate the wear and aging process of the casing. After a long time, cracks, deformation or severe wear will appear on the casing, thus affecting the overall performance and life of the water pump. Vibration will cause problems with the fit between the water pump casing and the seal, thereby affecting the sealing performance. If the sealing performance deteriorates, the water pump will leak, which will not only reduce the efficiency of the water pump, but also may cause pollution to the surrounding environment. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-strength plastic water pump protective casing to solve the deficiency that continuous vibration will cause friction between the plastic water pump casing and the internal mechanical structure, and to facilitate use.

[0006] To achieve the above object, the technical solution provided by the utility model is as follows:

[0007] The utility model discloses a high-strength plastic water pump protective shell, comprising a water pump shell and a bearing base shell arranged on one side of the water pump shell, a flange assembly is arranged between the water pump shell and the bearing base shell, the flange assembly comprises a flange plate arranged at one end of the water pump shell and a sleeve ring sleeved on the outer surface of the bearing base shell, a flange ring is arranged at one end of the sleeve ring, the size of the flange ring matches that of the flange plate, connecting pieces are evenly installed between the flange ring and the circumferential surface of the flange plate, a positioning small plate is arranged at the inner end of the flange ring, and one end of the connecting piece is in contact with the positioning small plate.

[0008] Preferably, the bearing base shell includes a shell located inside the sleeve ring and a rubber buffer column installed at one end of the shell, and a rubber gasket is provided on one end face of the rubber buffer column, and the rubber gasket is sandwiched between the flange plate and the flange ring.

[0009] Preferably, the circumferential surfaces of the flange, rubber gasket and flange ring are evenly provided with connecting holes, and the connecting holes match the connecting pieces.

[0010] Preferably, an annular groove is provided inside the positioning small plate, an extrusion plate is installed in the annular groove, a connecting spring is provided on the lower surface of the extrusion plate, and an extrusion triangle block is installed on one side wall of the extrusion plate.

[0011] Preferably, a side wall of the annular groove is penetrated with a reserved groove, a transverse locking block is installed in the reserved groove, an inner end of the transverse locking block is provided with a slope surface, and the slope surface of the transverse locking block matches the extruded triangular block.

[0012] Preferably, the upper and lower surfaces of the annular groove reserved groove are provided with transverse sliding grooves, a push spring is arranged inside the transverse sliding groove, a connecting push block is installed at one end of the push spring, and one end of the connecting push block is fixedly connected to the side surface of the transverse locking block.

[0013] Preferably, a locking groove is formed on the side wall surface of the sleeve ring, the locking groove corresponds to the position of the transverse locking block, and the locking groove matches the transverse locking block in size.

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] 1. A high-strength plastic water pump protective housing, by arranging a flange assembly including a rubber buffer column and a rubber gasket between the water pump housing and the bearing base housing. When the water pump is running, the vibration force exerted on the flange can be effectively absorbed by the rubber buffer column and the rubber gasket, thereby reducing the influence of vibration on connecting parts (such as bolts), avoiding loosening of connecting parts, and thus ensuring that the sealing performance of the water pump housing is not damaged, and improving the shock resistance and long-term operation stability of the water pump housing.

[0016] 2. A high-strength plastic water pump protective housing. Through the design of structures such as the positioning small plate, extrusion plate, connecting spring, and lateral locking block in the flange assembly, when assembling the water pump housing and the flange assembly, the connecting piece can not only firmly connect the flange plate, rubber gasket, and flange ring together, but also, through the action of the extrusion plate and the connecting spring, push the lateral locking block to engage with the locking groove on the socket ring, further enhancing the connection strength. This not only improves the overall structural strength of the water pump housing but also makes the assembly process more convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structure diagram of the present utility model;

[0018] Figure 2 is the schematic plan view of the flange assembly of the present utility model;

[0019] Figure 3 is the exploded structure diagram of the flange assembly of the present utility model;

[0020] Figure 4 is the internal schematic plan view of the positioning small plate of the present utility model.

[0021] In the figures: 1, water pump housing; 2, flange assembly; 21, flange plate; 22, socket ring; 23, flange ring; 24, connecting piece; 25, positioning small plate; 251, annular groove; 252, extrusion plate; 253, connecting spring; 254, extrusion triangular block; 255, lateral locking block; 256, lateral sliding groove; 257, pushing spring; 258, connecting and pushing block; 26, connecting hole; 3, bearing base housing; 31, housing; 32, rubber buffer column; 33, rubber gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] For a further understanding of the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings.

[0024] Combined with Figure 1The utility model discloses a high-strength plastic water pump protective shell, comprising a water pump shell 1 and a bearing base shell 3 arranged on one side of the water pump shell 1, a flange assembly 2 is arranged between the water pump shell 1 and the bearing base shell 3, the flange assembly 2 comprises a flange plate 21 arranged at one end of the water pump shell 1 and a sleeve ring 22 sleeved on the outer surface of the bearing base shell 3, a flange ring 23 is arranged at one end of the sleeve ring 22, the flange ring 23 matches the size of the flange plate 21, connecting pieces 24 are evenly installed between the circumferential surfaces of the flange ring 23 and the flange plate 21, a positioning small plate 25 is arranged at the inner end of the flange ring 23, and one end of the connecting piece 24 is connected to the positioning small plate 25.

[0025] The utility model is further described below in conjunction with embodiments.

[0026] Combination Figures 2 - 4 The bearing base shell 3 includes a shell 31 located on the inner side of the sleeve ring 22 and a rubber buffer column 32 installed at one end of the shell 31. A rubber gasket 33 is provided on one end face of the rubber buffer column 32. The rubber gasket 33 is sandwiched between the flange 21 and the flange ring 23. The circumferential surfaces of the flange 21, the rubber gasket 33 and the flange ring 23 are evenly provided with connecting holes 26. The connecting holes 26 match the connecting piece 24. An annular groove 251 is provided inside the positioning small plate 25. An extrusion plate 252 is matched and installed in the annular groove 251. A connecting spring 253 is provided on the lower surface of the extrusion plate 252. An extrusion triangle block 254 is installed on one side wall of the extrusion plate 252.

[0027] A reserved groove is provided on one side wall of the annular groove 251, and a transverse locking block 255 is installed in the reserved groove. A slope surface is provided on the inner end of the transverse locking block 255, and the slope surface of the transverse locking block 255 matches the extrusion triangle block 254. Transverse sliding grooves 256 are provided on the upper and lower surfaces of the reserved groove of the annular groove 251, and a push spring 257 is provided inside the transverse sliding groove 256. A connecting push block 258 is installed on one end of the push spring 257, and one end of the connecting push block 258 is fixedly connected to the side surface of the transverse locking block 255. A locking groove is provided on the side wall surface of the sleeve ring 22, and the locking groove corresponds to the position of the transverse locking block 255, and the locking groove matches the size of the transverse locking block 255.

[0028] In this embodiment, when the water pump is in operation, the flange 21 is subjected to vibration force, and the force is transmitted to the rubber buffer column 32 and the rubber gasket 33, so that most of the force is absorbed, thereby preventing the connecting bolts between the flange 21 and the flange ring 23 from loosening under the force, and the sealing performance is not affected;

[0029] When the water pump housing 1 and the flange assembly 2 are assembled, the flange plate 21 is in contact with the rubber gasket 33, the flange ring 23 is in contact with the rubber gasket 33, the connection holes 26 of the flange plate 21, the rubber gasket 33 and the flange ring 23 correspond to each other one by one, and a connecting piece 24 is threadedly connected to three connection holes 26 at the same position. The positioning small plate 25 is located directly below the connection hole 26 of the flange ring 23. As the connecting piece 24 is threadedly connected, the bottom end of the connecting piece 24 gradually presses the upper surface of the extrusion plate 252. Utilizing the elastic structure of the connecting spring 253, the extrusion plate 252 gradually moves downward, and the extrusion triangular block 254 gradually presses the lateral locking block 255 on one side. After being pressed, the lateral locking block 255 displaces to one side, and the lateral locking block 255 gradually extends outward along the reserved groove. One end of the lateral locking block 255 is engaged with the locking groove on the side wall surface of the socket ring 22. Thus, after the flange plate 21, the rubber gasket 33 and the flange ring 23 are assembled, the connecting piece 24 is locked with the socket ring 22, thereby further enhancing the connection strength of the flange plate 21, the rubber gasket 33 and the flange ring 23 and maintaining the sealing performance of the water pump housing.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength plastic water pump protective housing, comprising a water pump housing and a bearing base housing arranged on one side of the water pump housing, characterized in that: A flange assembly is arranged between the water pump housing and the bearing base housing, and the flange assembly includes a flange plate arranged at one end of the water pump housing and a sleeve ring sleeved on the outer surface of the bearing base housing, a flange ring is arranged at one end of the sleeve ring, and the size of the flange ring matches that of the flange plate, connecting pieces are evenly installed between the circumferential surfaces of the flange ring and the flange plate, a positioning small plate is arranged at the inner end of the flange ring, and one end of the connecting piece is connected to the positioning small plate.

2. The high-strength plastic water pump protective shell according to claim 1, characterized in that: The bearing base shell includes a shell located inside the sleeve ring and a rubber buffer column installed at one end of the shell. A rubber gasket is arranged on one end surface of the rubber buffer column, and the rubber gasket is sandwiched between the flange plate and the flange ring.

3. The high-strength plastic water pump protective shell according to claim 2, characterized in that: The circumferential surfaces of the flange plate, the rubber gasket and the flange ring are evenly provided with connecting holes, and the connecting holes match the connecting pieces.

4. The high-strength plastic water pump protective shell according to claim 1, characterized in that: An annular groove is provided inside the positioning small plate, and an extrusion plate is matched and installed in the annular groove. A connecting spring is arranged on the lower surface of the extrusion plate, and an extrusion triangle block is installed on one side wall of the extrusion plate.

5. The high-strength plastic water pump protective shell according to claim 4, characterized in that: A reserved groove is formed through one side wall of the annular groove, a transverse locking block is installed in the reserved groove, a slope surface is provided on the inner side end of the transverse locking block, and the slope surface of the transverse locking block matches the extruded triangular block.

6. The high-strength plastic water pump protective shell according to claim 5, characterized in that: The upper and lower surfaces of the annular groove reserved groove are both provided with transverse sliding grooves, a push spring is arranged inside the transverse sliding groove, a connecting push block is installed at one end of the push spring, and one end of the connecting push block is fixedly connected to the side surface of the transverse locking block.

7. The high-strength plastic water pump protective shell according to claim 5, characterized in that: The side wall surface of the sleeve ring is provided with a locking groove, the locking groove corresponds to the position of the transverse locking block, and the locking groove matches the transverse locking block in size.

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