High-sealing-performance automobile expansion tank

Abstract

The utility model provides an automobile expansion box with high sealing performance, which comprises an expansion box upper box body, an expansion box lower box body, a reinforcing sealing piece and a box cover, and an upper box body for storing cooling liquid is arranged at the upper end of an internal composition of the expansion box upper box body. Compared with the prior art, the expansion box has the advantages that the expansion box upper box body, the expansion box lower box body and the reinforcing sealing piece are additionally arranged, the lower end of the inner sealing ring of the reinforcing sealing piece is embedded into the lower sealing ring groove, the lower end of the outer sealing ring is embedded into the outer sealing ring groove in the lower end, and the expansion box upper box body and the expansion box lower box body are spliced; the embedded ring seat is embedded with the inner side of the lower sealing ring groove, the upper end of the inner sealing ring is embedded with the upper sealing ring groove, the upper end of the outer sealing ring is embedded with the outer sealing ring groove at the upper end, and a bolt is screwed into a connecting threaded hole for splicing and fixing, so that the sealing performance after splicing can be improved; the sealing performance after the box cover is installed can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile expansion boxes, in particular to a high-sealing automobile expansion box. Background Art

[0002] The car expansion tank, also often called the coolant expansion tank, auxiliary water tank or water filling pot, is an important part of the car cooling system. The car expansion tank can provide additional space to accommodate the expanded and overflowed coolant to prevent the system pressure from being too high. When the coolant is reduced due to coolant evaporation or leakage, the coolant in the expansion tank can be automatically added to the main circulation system to keep the liquid level of the cooling system stable. Most common car expansion tanks are split structures, consisting of an upper box body and a lower box body, but in most cases only a simple sealing gasket is added during assembly, resulting in low sealing performance after assembly, which will still cause the coolant to evaporate and overflow, causing the coolant inside the car expansion tank to gradually decrease over a long period of time, which will increase the frequency of coolant replenishment and increase coolant consumption.

[0003] Secondly, the car will experience bumps while driving, especially when driving on some complex roads with poor road conditions. The car expansion box will shake and vibrate, which will cause the car expansion box with low sealing to have the risk of leakage, causing the coolant to flow out and have some impact on other components.

[0004] In summary, the automobile expansion box with low sealing performance may have some problems in use, so it is hoped to propose a new structure to solve the above technical problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a highly sealed automobile expansion tank to solve the problems raised in the above-mentioned background technology.

[0006] The utility model is realized through the following technical scheme: a highly sealed automobile expansion box, comprising: an expansion box upper box body, an expansion box lower box body, a reinforced seal and a box cover, wherein the upper end of the internal composition of the expansion box upper box body is provided with an upper box body for storing coolant, the upper surface of the upper box body is provided with a box opening, a connecting pipe for installing the box cover is provided above the box opening, a box cover for sealing the box opening is provided on the outer side of the connecting pipe, an expansion box lower box body for assembling with the expansion box upper box body to accommodate coolant is provided below the expansion box upper box body, and a reinforced seal for improving the sealing effect after splicing is provided between the expansion box upper box body and the expansion box lower box body.

[0007] As a preferred embodiment, an upper connecting plate for splicing and connection is provided at the lower end of the upper box body, and an outer sealing ring groove for engaging with a reinforcing seal is provided on the outer side of the lower surface of the upper connecting plate;

[0008] An upper sealing ring groove for engaging with the reinforcing sealing member is also provided on the inner side of the outer sealing ring groove and the lower surface of the upper connecting plate.

[0009] As a preferred embodiment, an engaging ring seat is provided at one end of the inner side of the upper sealing ring groove close to the center of the upper connecting plate, and a lower box body for storing coolant is provided at the lower end of the internal component of the lower box body of the expansion box;

[0010] A lower connecting plate for splicing and connection is disposed at the upper end of the lower box body, and a lower sealing ring groove for engaging with a reinforcing sealing member is provided on the upper surface of the lower connecting plate.

[0011] As a preferred embodiment, an outer sealing ring groove is also provided on the outer side of the lower sealing ring groove and the upper surface of the lower connecting plate, an inner sealing ring is provided on the inner side of the reinforced sealing member, and an outer sealing ring is provided on the outer side of the inner sealing ring. The inner sealing ring is respectively embedded in the upper sealing ring groove and the lower sealing ring groove, and the outer sealing ring is embedded in the upper and lower groups of outer sealing ring grooves, thereby improving the sealing after assembly.

[0012] As a preferred embodiment, connecting threaded holes are provided at the corners of the upper surfaces of the upper connecting plate and the lower connecting plate, the lower surface of the upper connecting plate and the upper surface of the upper connecting plate fit each other and are connected and fixed by screwing bolts into the inner sides of the connecting threaded holes, and the upper box body of the expansion box and the lower box body of the expansion box are assembled so that the lower surface of the upper connecting plate and the upper surface of the upper connecting plate fit each other, and then the bolts are screwed into the inner sides of the connecting threaded holes, so that the upper box body of the expansion box and the lower box body of the expansion box can be connected and fixed and the reinforced seal can be tightened.

[0013] As a preferred embodiment, the engaging ring seat is engaged with the inner side of the lower sealing ring groove, the upper and lower ends of the inner sealing ring are respectively engaged with the outer sides of the upper and lower sealing ring grooves, and the outer sealing ring is respectively engaged with the upper and lower groups of outer sealing ring grooves.

[0014] As a preferred embodiment, the upper end of the outer side surface of the connecting pipe is provided with an external thread, and the outer side of the connecting pipe and the upper surface of the upper box body are provided with a plurality of groups of top pressure springs equally distributed in a circumference;

[0015] A top pressure sealing ring is provided above the top pressure spring, and the inner side surface of the top pressure sealing ring is in contact with the outer side surface of the lower end of the box cover. An internal thread is provided at the lower end of the inner side surface of the box cover, and the external thread and the internal thread are screwed together. The box cover and the connecting pipe are screwed together through the cooperation of the external thread and the internal thread, and the box cover can press the top pressure sealing ring, so that the top pressure spring produces a reaction force on the box cover, thereby improving the sealing performance of the box cover after installation.

[0016] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by adding an upper box body of the expansion box, a lower box body of the expansion box and a reinforced seal, the lower end of the inner sealing ring of the reinforced seal is embedded in the lower sealing ring groove, and the lower end of the outer sealing ring is embedded in the outer sealing ring groove at the lower end, the upper box body of the expansion box and the lower box body of the expansion box are spliced, the engaging ring seat and the inner side of the lower sealing ring groove are engaged with each other, the upper end of the inner sealing ring is engaged with the upper sealing ring groove and the upper end of the outer sealing ring is engaged with the upper outer sealing ring groove, the bolts are screwed into the connecting threaded holes for splicing and fixing, the sealing after splicing can be improved, and by adding an upper box body and a box cover of the expansion box, the sealing after the box cover is installed can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a high-sealing automobile expansion box.

[0019] Figure 2 The utility model is a schematic diagram of the explosion structure of a highly sealed automobile expansion box.

[0020] Figure 3 The utility model is a schematic diagram of the upper structure of an upper box body of a middle material expansion box of a highly sealed automobile expansion box.

[0021] Figure 4 The utility model is a schematic diagram of the lower part of the upper box body of the middle material expansion box of a highly sealed automobile expansion box.

[0022] Figure 5 The utility model is a schematic structural diagram of a lower box body of an expansion box of a highly sealed automobile expansion box.

[0023] Figure 6 The utility model is a structural schematic diagram of a reinforced seal in a high-sealing automobile expansion box.

[0024] In the figure, 100-expansion box upper box body, 101-upper box body, 102-connecting pipe, 103-external thread, 104-top pressure spring, 105-top pressure sealing ring, 106-upper connecting plate, 107-fitting ring seat, 108-upper sealing ring groove, 109-external sealing ring groove;

[0025] 200- expansion tank lower box body, 201- lower box body, 202- lower connecting plate, 203- connecting threaded hole, 204- lower sealing ring groove;

[0026] 300-reinforced seal, 301-inner seal ring, 302-outer seal ring;

[0027] 400-Box cover. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 6 The utility model provides a technical solution: a highly sealed automobile expansion box, comprising: an expansion box upper box body 100, an expansion box lower box body 200, a reinforced seal 300 and a box cover 400, wherein the upper end of the expansion box upper box body 100 is provided with an upper box body 101 for storing coolant in its internal components;

[0030] The upper surface of the upper box body 101 is provided with a box opening, a connecting pipe 102 for installing a box cover 400 is provided above the box opening, and a box cover 400 for sealing the box opening is provided outside the connecting pipe 102;

[0031] An expansion box lower box 200 is provided below the expansion box upper box 100 for assembling with the expansion box upper box 100 to accommodate coolant, and a reinforced seal 300 is provided between the expansion box upper box 100 and the expansion box lower box 200 for improving the sealing effect after splicing.

[0032] An upper connecting plate 106 for splicing and connection is provided at the lower end of the upper box body 101, and an outer sealing ring groove 109 for engaging with the reinforcing sealing member 300 is provided on the outer side of the lower surface of the upper connecting plate 106;

[0033] An upper sealing ring groove 108 for engaging with the reinforced sealing member 300 is also formed on the inner side of the outer sealing ring groove 109 and on the lower surface of the upper connecting plate 106 .

[0034] An engaging ring seat 107 is provided on the inner side of the upper sealing ring groove 108 near the center of the upper connecting plate 106. The lower end of the lower box body 200 of the expansion box is provided with a lower box body 201 for storing coolant.

[0035] A lower connecting plate 202 for splicing and connection is disposed at the upper end of the lower box body 201 , and a lower sealing ring groove 204 for engaging with the reinforcing sealing member 300 is formed on the upper surface of the lower connecting plate 202 .

[0036] An outer sealing ring groove 109 is also provided on the outer side of the lower sealing ring groove 204 and the upper surface of the lower connecting plate 202. An inner sealing ring 301 is provided on the inner side of the reinforced sealing member 300, and an outer sealing ring 302 is provided on the outer side of the inner sealing ring 301. The inner sealing ring 301 is respectively embedded in the upper sealing ring groove 108 and the lower sealing ring groove 204, and the outer sealing ring 302 is embedded in the upper and lower sets of outer sealing ring grooves 109, thereby improving the sealing performance after assembly.

[0037] The upper connecting plate 106 and the lower connecting plate 202 are provided with connecting threaded holes 203 at the corners of the upper surfaces. The lower surface of the upper connecting plate 106 and the upper surface of the upper connecting plate 202 fit each other and are connected and fixed by screwing bolts into the inner sides of the connecting threaded holes 203. The upper box body 100 of the expansion box and the lower box body 200 of the expansion box are assembled so that the lower surface of the upper connecting plate 106 and the upper surface of the upper connecting plate 202 fit each other. Then, the bolts are screwed into the inner sides of the connecting threaded holes 203. This can connect and fix the upper box body 100 of the expansion box and the lower box body 200 of the expansion box and tighten the reinforced seal 300.

[0038] See also Figure 1-Figure 6 As the first embodiment of the utility model: first, the user embeds the lower end of the inner sealing ring 301 of the reinforced sealing member 300 into the lower sealing ring groove 204, and embeds the lower end of the outer sealing ring 302 into the outer sealing ring groove 109 at the lower end, and then assembles the expansion box upper box body 100 and the expansion box lower box body 200, and makes the engaging ring seat 107 and the inner side of the lower sealing ring groove 204 engage with each other, and makes the upper end of the inner sealing ring 301 engage with the upper sealing ring groove 108 engage with each other, and makes the upper end of the outer sealing ring 302 engage with the outer sealing ring groove 109 at the upper end engage with each other, secondly, the lower surface of the upper connecting plate 106 and the upper surface of the upper connecting plate 202 fit each other, and then screws the bolts into the inner side of the connecting threaded hole 203, so that the expansion box upper box body 100 and the expansion box lower box body 200 can be connected and fixed and the reinforced sealing member 300 can be compressed, thereby improving the sealing performance of the automobile expansion box.

[0039] The interlocking ring seat 107 is interlocked with the inner side of the lower sealing ring groove 204, the upper and lower ends of the inner sealing ring 301 are respectively engaged with the upper sealing ring groove 108 and the outer side of the lower sealing ring groove 204, and the outer sealing ring 302 is respectively engaged with the upper and lower sets of outer sealing ring grooves 109.

[0040] The upper end of the outer surface of the connecting pipe 102 is provided with an external thread 103, and the outer side of the connecting pipe 102 and the upper surface of the upper box body 101 are provided with a plurality of groups of top pressure springs 104 equally distributed in a circumference;

[0041] A top pressure sealing ring 105 is provided above the top pressure spring 104, and the inner side surface of the top pressure sealing ring 105 fits with the outer side surface of the lower end of the box cover 400. An internal thread is provided at the lower end of the inner side surface of the box cover 400, and the external thread 103 and the internal thread are screwed together. The box cover 400 and the connecting pipe 102 are screwed together through the cooperation of the external thread 103 and the internal thread, and the box cover 400 can press the top pressure sealing ring 105, so that the top pressure spring 104 produces a reaction force on the box cover 400, thereby improving the sealing performance of the box cover 400 after installation.

[0042] See also Figure 1-Figure 3 , as the second embodiment of the utility model: based on the above-mentioned first embodiment, the box cover 400 and the connecting pipe 102 are screwed together by the cooperation of the external thread 103 and the internal thread, and the lower end of the box cover 400 is embedded in the inner side of the top pressure sealing ring 105, and the top pressure sealing ring 105 is pressed downward, so that the top pressure spring 104 generates a reaction force on the box cover 400, so that the top pressure sealing ring 105 is tightly fitted with the lower end of the outer side of the box cover 400, thereby improving the sealing performance of the box cover 400 after installation.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly sealed automobile expansion tank, comprising: An expansion box upper box body (100), an expansion box lower box body (200), a reinforced seal (300) and a box cover (400), characterized in that: the upper end of the internal components of the expansion box upper box body (100) is provided with an upper box body (101) for storing coolant; The upper surface of the upper box body (101) is provided with a box opening, a connecting pipe (102) for installing a box cover (400) is provided above the box opening, and a box cover (400) for sealing the box opening is provided outside the connecting pipe (102); An expansion box lower box (200) is provided below the expansion box upper box (100) and is used for being assembled with the expansion box upper box (100) to accommodate cooling liquid. A reinforcing seal (300) is provided between the expansion box upper box (100) and the expansion box lower box (200) to improve the sealing effect after assembly.

2. A highly sealed automobile expansion tank as claimed in claim 1, characterized in that: An upper connecting plate (106) for splicing and connection is provided at the lower end of the upper box body (101); an outer sealing ring groove (109) for engaging with a reinforcing sealing member (300) is provided on the outer side of the lower surface of the upper connecting plate (106); An upper sealing ring groove (108) for engaging with the reinforcing sealing member (300) is also provided on the inner side of the outer sealing ring groove (109) and the lower surface of the upper connecting plate (106).

3. A highly sealed automobile expansion tank as claimed in claim 2, characterized in that: An engaging ring seat (107) is provided on the inner side of the upper sealing ring groove (108) near the center of the upper connecting plate (106); the lower end of the lower box body (200) of the expansion box is provided with a lower box body (201) for storing cooling liquid; The upper end of the lower box body (201) is provided with a lower connecting plate (202) for splicing and connection, and the upper surface of the lower connecting plate (202) is provided with a lower sealing ring groove (204) for engaging with the reinforcing sealing member (300).

4. A highly sealed automobile expansion tank as claimed in claim 3, characterized in that: An outer sealing ring groove (109) is also provided on the outer side of the lower sealing ring groove (204) and the upper surface of the lower connecting plate (202). An inner sealing ring (301) is provided on the inner side of the reinforced sealing component (300), and an outer sealing ring (302) is provided on the outer side of the inner sealing ring (301).

5. A highly sealed automobile expansion tank as claimed in claim 4, characterized in that: The upper connecting plate (106) and the lower connecting plate (202) are both provided with connecting threaded holes (203) at the corners of their upper surfaces. The lower surface of the upper connecting plate (106) and the upper surface of the lower connecting plate (202) fit each other and are connected and fixed by bolts screwed into the inner sides of the connecting threaded holes (203).

6. A highly sealed automobile expansion tank as claimed in claim 5, characterized in that: The interlocking ring seat (107) is interlocked with the inner side of the lower sealing ring groove (204), the upper and lower ends of the inner sealing ring (301) are respectively interlocked with the outer sides of the upper sealing ring groove (108) and the lower sealing ring groove (204), and the outer sealing ring (302) is respectively interlocked with the upper and lower groups of outer sealing ring grooves (109).

7. A highly sealed automobile expansion tank as claimed in claim 1, characterized in that: The upper end of the outer surface of the connecting pipe (102) is provided with an external thread (103), and the outer side of the connecting pipe (102) and the upper surface of the upper box body (101) are provided with a plurality of groups of pressure springs (104) equally distributed in a circumference; A pressure sealing ring (105) is provided above the pressure spring (104), the inner side surface of the pressure sealing ring (105) is in contact with the outer side surface of the lower end of the box cover (400), the lower end of the inner side surface of the box cover (400) is provided with an internal thread, and the external thread (103) is screwed together with the internal thread.

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