Pump fixing device

Abstract

The utility model belongs to the technical field of automobile manufacturing, and discloses a pump fixing device. The pump fixing device comprises a fixing plate and an adapter plate, the fixing plate is arranged on the flash of the oil tank, a first mounting part and an adapter part are arranged on the fixing plate, the first mounting part is used for mounting a first type pump body, the adapter plate is assembled on the adapter part, a second mounting part is arranged on the adapter plate, and the second mounting part is used for mounting a second type pump body. By means of the combination of the fixing plate and the adapter plate, pump bodies of different models can be installed on the oil tank, an oil tank assembly does not need to be redesigned, the development period of products is greatly shortened, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a pump fixing device. Background Art

[0002] The fuel tank and the urea pump are important components in a diesel vehicle. The urea pump extracts urea solution from the urea tank through a pipeline and transports it to the urea nozzle to achieve the mixing of diesel and urea solution.

[0003] Currently, two different structures are usually adopted for fixing the urea pump: a hot-melt structure and an assembly structure. In the hot-melt structure, a part of the adhesive on the fuel tank and the pump fixing plate is melted by heating, and then the melted adhesive is bonded together by extrusion, and then the urea pump is fixed on the pump fixing plate. However, during the process of melting the adhesive of the fuel tank, the fuel tank is easily thinned or even pierced by heat, thus damaging the fuel tank body and reducing its strength and durability. In the assembly structure, a bushing is buried in the flange of the fuel tank, and the pump fixing plate is assembled to the fuel tank using screws. However, the installation holes reserved on the pump fixing plate can only match a small number of types of urea pumps. With the increase in the types of urea pumps on the market, if customers want to assemble other urea pumps, they can only develop a new integrated fuel tank assembly, which not only increases the input cost but also extends the development cycle, and is not conducive to quickly launching the product to the market.

[0004] Therefore, there is an urgent need for a pump fixing device to solve the problems in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a pump fixing device. Through the combination of a fixing plate and an adapter plate, different types of pump bodies can be installed on the fuel tank without re-designing the fuel tank assembly, greatly shortening the product development cycle and saving costs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The pump fixing device includes:

[0008] A fixing plate is arranged on the flange of the fuel tank. The fixing plate is provided with a first installation part and an adapter part, and the first installation part is configured to install a first type of pump body;

[0009] An adapter plate is assembled on the adapter part. The adapter plate is provided with a second installation part, and the second installation part is configured to install a second type of pump body.

[0010] Optionally, the first installation part is provided with a plurality of first installation holes, and the first type of pump body is provided with a plurality of first fixing holes, and the first installation holes correspond to the first fixing holes one by one;

[0011] The pump fixing device further includes a first fastener and a nut. The pump body of the first model and the nut are respectively located on both sides of the adapter plate. The first fastener sequentially passes through the first fixing hole and the first mounting hole and is threadedly connected to the nut.

[0012] Optionally, the nut is a polygonal nut, and a polygonal limiting groove is provided on the adapter plate. The polygonal nut is limited within the polygonal limiting groove.

[0013] Optionally, at least two elastic buckles are oppositely arranged within the polygonal limiting groove, and the two elastic buckles are configured to pre-fix the polygonal nut within the polygonal limiting groove.

[0014] Optionally, a plurality of second mounting holes are provided on the adapter portion, and a plurality of second fixing holes are provided on the pump body of the second model. The second mounting holes and the second fixing holes are in one-to-one correspondence.

[0015] The pump fixing device includes a second fastener. The second fastener sequentially passes through the second mounting hole and the second fixing hole and is threadedly connected to the pump body of the second model.

[0016] Optionally, the pump fixing device includes a third fastener. An assembly groove is provided on the adapter portion, and the adapter plate is embedded within the assembly groove. The third fastener is configured to fix the adapter plate within the assembly groove.

[0017] Optionally, bending portions are respectively provided on opposite sides of the adapter plate. Third mounting holes are provided on the bending portions, and third fixing holes are provided at the bottom of the assembly groove. The third fixing holes and the third mounting holes are in one-to-one correspondence. The third fastener sequentially passes through the third mounting hole and the third fixing hole and is threadedly connected to the adapter portion.

[0018] Optionally, a protruding portion is provided on the flange of the fuel tank, and a limiting space is provided on the fixing plate. The protruding portion is limited within the limiting space.

[0019] And / or, a card slot is provided on the fuel tank, and a fixing buckle is provided on the fixing plate. The fixing buckle is snap-fitted into the card slot.

[0020] Optionally, a rollover valve is provided on the fuel tank. The rollover valve includes an air hole and a valve plate. The valve plate is movably connected within the rollover valve. When the fuel tank overturns, the valve plate blocks the air hole.

[0021] Optionally, a filter screen is provided at the oil filling port of the fuel tank, and the filter screen is locked at the oil filling port.

[0022] Beneficial effects:

[0023] The pump fixing device provided by the utility model comprises a fixing plate and an adapter plate, wherein the fixing plate is arranged on the burr edge of the oil tank, and a first mounting portion and an adapter portion are arranged on the fixing plate, wherein the first mounting portion is used for mounting a first type of pump body, and the adapter plate is assembled on the adapter portion, and a second mounting portion is arranged on the adapter plate, and the second mounting portion is used for mounting a second type of pump body. Through the combination of the fixing plate and the adapter plate, it is possible to mount pump bodies of different types on the oil tank without redesigning the oil tank assembly, thereby greatly shortening the product development cycle and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an exploded view of the pump fixing device provided by the utility model;

[0025] Figure 2 It is an exploded view of the fixing plate and the adapter plate provided by the utility model;

[0026] Figure 3 It is a structural schematic diagram of the fixing plate provided by the utility model at a viewing angle;

[0027] Figure 4 It is a structural schematic diagram of the fixing plate provided by the utility model in another viewing angle;

[0028] Figure 5 The fixing plate provided by the utility model is fixed on the fuel tank through a fixing buckle. Figure 1 ;

[0029] Figure 6 The fixing plate provided by the utility model is fixed on the fuel tank through a fixing buckle. Figure 2 ;

[0030] Figure 7 It is a cross-sectional view of the rollover valve provided by the utility model;

[0031] Figure 8 It is an exploded view of the filter screen and the fuel tank provided by the utility model;

[0032] Figure 9 It is a structural schematic diagram of an oil tank provided by the utility model with an oil storage tank inside;

[0033] Figure 10 It is a cross-sectional view of the urea tank provided by the utility model.

[0034] In the figure:

[0035] 10. oil tank; 11. flash edge; 111. raised portion; 112. fourth fixing hole; 12. slot; 13. oil filling port; 14. rollover valve; 141. air hole; 142. valve plate; 15. filter screen; 16. oil storage tank;

[0036] 20. Urea tank; 21. Urea filling port; 22. Urea splash-proof retaining wall; 23. Quality sensor;

[0037] 30. First type of pump body;

[0038] 40. Second type of pump body;

[0039] 100. Fixed plate; 110. First mounting hole; 120. Assembly groove; 121. Third fixing hole; 130. Polygonal limiting groove; 131. Elastic buckle; 140. Fixed buckle;

[0040] 200. Adapter plate; 210. Second mounting hole; 220. Bending part; 221. Third mounting hole;

[0041] 310. First fastener; 320. Nut;

[0042] 400. Second fastener;

[0043] 500. Third fastener. Detailed implementation mode

[0044] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0045] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0046] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0047] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] In this embodiment, a pump fixing device is provided, as Figures 1-6 shown, which includes a fixing plate 100 and an adapter plate 200. The fixing plate 100 is arranged on the flange 11 of the fuel tank 10. The fixing plate 100 is provided with a first mounting portion and an adapter portion. The first mounting portion is used for mounting a first-type pump body 30; the adapter plate 200 is assembled on the adapter portion. The adapter plate 200 is provided with a second mounting portion, and the second mounting portion is used for mounting a second-type pump body 40. Through the combination of the fixing plate 100 and the adapter plate 200, different types of pump bodies can be installed on the fuel tank 10 without re-designing the fuel tank 10 assembly, greatly shortening the product development cycle and saving costs.

[0049] Optionally, as Figures 1-2 shown, the first mounting portion is provided with a plurality of first mounting holes 110, and the first-type pump body 30 is provided with a plurality of first fixing holes. The first mounting holes 110 correspond to the first fixing holes one by one; the pump fixing device includes a first fastener 310 and a nut 320. The first-type pump body 30 and the nut 320 are respectively located on both sides of the adapter plate 200. The first fastener 310 sequentially passes through the first fixing holes and the first mounting holes 110 and is threadedly connected with the nut 320, thereby fixing the first-type pump body 30 on the fixing plate 100. The first mounting portion is provided with a plurality of first mounting holes 110, and the first-type pump body 30 is provided with a corresponding number of first fixing holes, ensuring that the pump body can be accurately positioned and fixed in place, preventing offset or loosening during the installation process, and improving the stability and reliability of the first-type pump body 30.

[0050] Optionally, the first fastener 310 is a fastening bolt. The fastening bolt has a strong fastening force, which can ensure that the first-type pump body 30 is stably fixed on the fixing plate 100, and it is also convenient for the installation, disassembly, maintenance, and repair of the first-type pump body 30.

[0051] In this embodiment, as Figures 1-2As shown, the first-type pump body 30 includes the first-type pump A and the first-type pump B. There are 3 first fixing holes on the first-type pump A and 3 first fixing holes on the first-type pump B. The arrangement of the 3 first fixing holes on the first-type pump A is different from that of the 3 first fixing holes on the first-type pump B. To ensure that the fixing plate 100 is compatible with these two types of pumps, 6 first mounting holes 110 are provided on the fixing plate 100. Among them, the positions of 3 first mounting holes 110 correspond to the 3 first fixing holes on the first-type pump A, and the positions of the other 3 first mounting holes 110 correspond to the 3 first fixing holes on the first-type pump B.

[0052] Optionally, as Figure 3 shown, the nut 320 is a polygonal nut, and a polygonal limiting groove 130 is provided on the adapter plate 200. The polygonal nut is limited within the polygonal limiting groove 130, which can prevent the first nut 320 from freely rotating during the fastening process of the first fastener 310, improving the installation convenience. Specifically, in this embodiment, the polygonal nut is a square nut, and the polygonal limiting groove 130 is a quadrilateral limiting groove. The square nut is limited within the quadrilateral limiting groove, and there is a certain gap between the square nut and the fixing plate 100 for compensating the tolerance during the assembly process. In other embodiments, the polygonal nut can be a pentagonal nut, a hexagonal nut, etc., and the corresponding polygonal limiting grooves 130 are pentagonal limiting grooves, hexagonal limiting grooves, etc.

[0053] Optionally, at least two elastic buckles 131 are oppositely arranged within the polygonal limiting groove 130. The two elastic buckles 131 are configured to pre-fix the polygonal nut within the polygonal limiting groove 130, ensuring that the polygonal nut will not fall out of the polygonal limiting groove 130 when the first fastener 310 is not connected to the polygonal nut, which can simplify the installation process and improve the installation efficiency.

[0054] Optionally, a plurality of second mounting holes 210 are provided on the adapter portion, and a plurality of second fixing holes are provided on the second-type pump body 40. The second mounting holes 210 correspond to the second fixing holes one by one; the pump fixing device includes a second fastener 400. The second fastener 400 sequentially passes through the second mounting holes 210 and the second fixing holes and is threadedly connected to the second-type pump body 40. Through the one-to-one correspondence between the plurality of second mounting holes 210 and the second fixing holes, multi-point fixing of the pump body on the adapter portion can be achieved, which can increase the fixing stability of the second-type pump body 40 and ensure that the second-type pump body 40 will not shake or loosen during use. Specifically, the second fastener 400 is a fastening bolt, and the fastening bolt has a strong fastening force, which can ensure that the second-type pump body 40 is stably fixed on the adapter plate 200.

[0055] Optionally, as Figure 2 and Figure 4As shown, the pump fixing device includes a third fastener 500. An assembly groove 120 is provided on the adapter part. The adapter plate 200 is embedded in the assembly groove 120. The third fastener 500 is used to fix the adapter plate 200 in the assembly groove 120, ensuring the position stability of the adapter plate 200. Moreover, since the adapter plate 200 is embedded in the assembly groove 120, space can be utilized more effectively, making the structure of the entire pump fixing device more compact, improving the space utilization rate, and making the appearance of the pump fixing device neater. Specifically, the third fastener 500 is a fastening bolt, ensuring a firm connection between the adapter plate 200 and the fixing plate 100.

[0056] Optionally, bending parts 220 are respectively provided on two opposite sides of the adapter plate 200. Third mounting holes 221 are provided on the bending parts 220. Third fixing holes 121 are provided at the bottom of the assembly groove 120. The third fixing holes 121 correspond to the third mounting holes 221 one by one. The third fastener 500 sequentially passes through the third mounting holes 221 and the third fixing holes 121 and is threadedly connected to the adapter part, thereby ensuring a firm connection of the adapter plate 200 to the adapter part.

[0057] Optionally, reinforcing ribs are provided at the bending parts 220 of the adapter plate 200. The reinforcing ribs can ensure the structural strength of the adapter plate 200 and improve the stability of the second-type pump body 40.

[0058] It can be understood that during the process of fixing the second-type pump body 40 on the fuel tank 10, first fix the second-type pump body 40 on the adapter plate 200, and then fix the adapter plate 200 on the adapter part of the fixing plate 100. During this process, the second fastener 400 is inserted through the adapter plate 200 from the side of the adapter plate 200 close to the fuel tank 10 to the side away from the fuel tank 10 and is threadedly connected to the second-type pump body 40. Therefore, the provision of the bending parts 220 on the adapter plate 200 causes a receiving gap to be formed between the adapter plate 200 and the fixing plate 100 after the adapter plate 200 is installed on the adapter part. The receiving gap is used to receive the cap of the second fastener 400, preventing the cap from interfering with the fixing plate 100, ensuring the smooth progress of the assembly process, and further ensuring the stability of the adapter plate 200.

[0059] Optionally, as Figure 1 shown, a protrusion 111 is provided on the flange 11 of the fuel tank 10. A limiting space is provided on the fixing plate 100. The protrusion 111 is limited in the limiting space, which can ensure the accuracy and stability of the installation position of the fixing plate 100. After the protrusion 111 and the limiting space are matched, the fixing plate 100 is fixed on the flange 11 of the fuel tank 10 through fastening screws, ensuring a more firm connection between the fixing plate 100 and the flange 11 of the fuel tank 10.

[0060] Specifically, a number of fourth fixing holes 112 are provided on the flash 11 of the fuel tank 10, and a number of fourth mounting holes are provided on the fixing plate 100. The fourth mounting holes and the fourth fixing holes 112 correspond one by one, and the fastening screws sequentially pass through the fourth mounting holes and the fourth fixing holes 112 and are threadedly connected to the flash 11 of the fuel tank 10.

[0061] In other embodiments, such as Figures 5-6 As shown, a clamping groove 12 is provided on the fuel tank 10, and a fixing buckle 140 is provided on the fixing plate 100. The fixing buckle 140 is clamped in the clamping groove 12, which can ensure the accuracy and stability of the installation position of the fixing plate 100. After the fixing buckle 140 and the clamping groove 12 are matched, the fixing plate 100 is fixed on the flash 11 of the fuel tank 10 through the fastening screws, ensuring that the connection between the fixing plate 100 and the flash 11 of the fuel tank 10 is more stable.

[0062] In another embodiment, a convex portion 111 is provided on the flash 11 of the fuel tank 10, and a limiting space is provided on the fixing plate 100. The convex portion 111 is limited in the limiting space; and, a clamping groove 12 is provided on the fuel tank 10, and a fixing buckle 140 is provided on the fixing plate 100. The fixing buckle 140 is clamped in the clamping groove 12, realizing double limiting and improving the connection stability and reliability between the fixing plate 100 and the fuel tank 10.

[0063] Optionally, as Figure 7 As shown, a rollover valve 14 is provided on the fuel tank 10. The rollover valve 14 includes an air hole 141 and a valve plate 142. The valve plate 142 is movably connected inside the rollover valve 14. The rollover valve 14 enables the fuel tank 10 to exchange gas with the outside, slows down the pressure change inside the fuel tank 10 and prevents deformation; when the vehicle rolls over, the fuel tank 10 is in a rolled-over state. At this time, the rollover valve 14 is also in a rolled-over state, and the valve plate 142 blocks the air hole 141 to prevent the fuel inside the fuel tank 10 from leaking from the air hole 141, improving the safety of the fuel tank 10.

[0064] Optionally, as Figure 8 As shown, a filter screen 15 is provided at the fuel filling port 13 of the fuel tank 10. The filter screen 15 is locked at the fuel filling port 13. The filter screen 15 can filter the fuel filled in the fuel tank 10, helping to reduce the damage to the engine caused by impurities in the fuel, extending the service life of the engine, and improving the combustion efficiency. And, the filter screen 15 is locked at the fuel filling port 13, which can prevent the fuel in the fuel tank 10 from being pumped out of the fuel tank 10 by the fuel pipe, avoiding fuel loss. Specifically, an external thread is provided on the outer wall of the filter screen 15, and an internal thread is provided on the inner wall of the fuel filling port 13. The external thread and the internal thread are screwed together to lock the filter screen 15 at the fuel filling port 13.

[0065] When the vehicle is on a slope or making a sharp turn, the fuel tank 10 will slide rapidly to one side, causing the fuel sensor of the vehicle to be unable to suck fuel and the vehicle to stall. To avoid this situation, such asFigure 9 As shown, an oil storage tank 16 is arranged at a corresponding position inside the fuel tank 10. In the case of the vehicle on a slope or turning, the fuel sensor can also suck oil to provide power for the vehicle.

[0066] Optionally, as Figure 10 shown, the pump fixing device further includes a urea tank 20. A urea filling port 21 is provided on the urea tank 20. A quality sensor 23 and a urea splash-proof retaining wall 22 are arranged inside the urea tank 20. The urea splash-proof retaining wall 22 is arranged between the urea filling port 21 and the quality sensor 23. When filling urea into the urea tank 20, the urea will splash onto the quality sensor 23 to generate bubbles, resulting in the quality sensor 23 reporting abnormal concentration. Therefore, a urea splash-proof retaining wall 22 is designed inside the urea tank 20. When filling urea, the first thing it splashes onto is the urea splash-proof retaining wall 22, rather than directly splashing onto the quality sensor 23 to cause it to report abnormal concentration.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Pump fixing device, characterized in that, include: A fixing plate (100) is arranged on the burr (11) of the oil tank (10), wherein the fixing plate (100) is provided with a first mounting portion and a transition portion, wherein the first mounting portion is configured to mount a first model pump body (30); An adapter plate (200) is mounted on the adapter portion, and a second mounting portion is provided on the adapter plate (200), wherein the second mounting portion is configured to mount a second model pump body (40).

2. The pump fixing device according to claim 1, characterized in that, The first mounting portion is provided with a plurality of first mounting holes (110), the first model pump body (30) is provided with a plurality of first fixing holes, and the first mounting holes (110) correspond one-to-one to the first fixing holes; The pump fixing device also includes a first fastener (310) and a nut (320). The first model pump body (30) and the nut (320) are respectively located on two sides of the adapter plate (200). The first fastener (310) passes through the first fixing hole and the first mounting hole (110) in sequence and is threadedly connected to the nut (320).

3. The pump fixing device according to claim 2, characterized in that, The nut (320) is a polygonal nut, and a polygonal limiting groove (130) is provided on the adapter plate (200), and the polygonal nut is limited in the polygonal limiting groove (130).

4. The pump fixing device according to claim 3, characterized in that, At least two elastic buckles (131) are arranged relatively in the polygonal limiting groove (130), and the two elastic buckles (131) are configured to pre-fix the polygonal nut in the polygonal limiting groove (130).

5. The pump fixing device according to claim 1, characterized in that, The adapter portion is provided with a plurality of second mounting holes (210), the second model pump body (40) is provided with a plurality of second fixing holes, and the second mounting holes (210) correspond one to one with the second fixing holes; The pump fixing device comprises a second fastener (400), and the second fastener (400) passes through the second mounting hole (210) and the second fixing hole in sequence and is threadedly connected to the second model pump body (40).

6. The pump fixing device according to claim 1, characterized in that, The pump fixing device comprises a third fastener (500), the adapter portion is provided with an assembly groove (120), the adapter plate (200) is embedded in the assembly groove (120), and the third fastener (500) is configured to fix the adapter plate (200) in the assembly groove (120).

7. The pump fixing device according to claim 6, characterized in that, The adapter plate (200) is provided with a bending portion (220) on two opposite sides, and a third mounting hole (221) is provided on the bending portion (220). The bottom of the assembly groove (120) is provided with a third fixing hole (121), and the third fixing hole (121) corresponds to the third mounting hole (221) one by one. The third fastener (500) passes through the third mounting hole (221) and the third fixing hole (121) in sequence and is threadedly connected to the adapter portion.

8. The pump fixing device according to claim 1, characterized in that, A protrusion (111) is provided on the flash edge (11) of the oil tank (10), a limiting space is provided on the fixing plate (100), and the protrusion (111) is limited in the limiting space; And / or, a clamping groove (12) is provided on the fuel tank (10), a fixing buckle (140) is provided on the fixing plate (100), and the fixing buckle (140) is clamped in the clamping groove (12).

9. The pump fixing device according to claim 1, characterized in that A rollover valve (14) is provided on the fuel tank (10), the rollover valve (14) includes an air hole (141) and a valve plate (142), the valve plate (142) is movably connected inside the rollover valve (14), and when the fuel tank (10) is overturned, the valve plate (142) blocks the air hole (141).

10. The pump fixing device according to claim 1, characterized in that, A filter screen (15) is provided at the fuel injection port (13) of the fuel tank (10), and the filter screen (15) is locked at the fuel injection port (13).

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