Vehicle-mounted water tank

Abstract

The utility model provides a vehicle-mounted water tank. The vehicle-mounted water tank comprises a rotational molding body, a booster water pump, a first water conveying pipeline, a second water conveying pipeline and a drainage assembly. The rotational molding main body comprises a water storage cavity, a water pump groove and a water outlet pipe hole; the booster water pump is mounted in the water pump groove; a mounting hole is formed in the bottom wall of the water pump groove, and the mounting hole penetrates through the lower surface of the rotational molding main body from the bottom wall of the water pump groove; the drainage assembly comprises a first locking piece and a second locking piece, and the first locking piece and the second locking piece are inserted into the mounting hole from the two ends of the mounting hole respectively and are locked and fixed to the mounting hole. Drainage channels used for communicating the water pump groove with the outside of the rotational molding body are formed in the first locking piece and the second locking piece, and the minimum radial dimension of the drainage channels is 3 mm. The drainage channel of the water pump groove can meet the drainage requirement, and meanwhile insects and the like are prevented from entering the water pump groove.

Description

Technical Field

[0001] This utility model relates to the field of outdoor products, and more specifically, to a vehicle-mounted water tank. Background Technology

[0002] Self-driving tours are organized and planned forms of tourism that primarily utilize self-driving vehicles. Due to their inherent characteristics of freedom and personalization, flexibility and comfort, as well as selectivity and seasonality, self-driving tours are becoming increasingly popular. While motorhomes are relatively large and have strong specialized features, off-road vehicles and family sedans remain the main modes of transportation for self-driving tours.

[0003] Vehicle-mounted water tanks provide drinking water for vehicles used in road trips (SUVs and family cars, etc.). Currently, most vehicle-mounted water tanks are manufactured using rotational molding, and to improve the user experience (e.g., during showering), a booster pump is installed inside. During the operation of the booster pump, a small amount of water will leak out. If this water is not drained in time, it will affect the electrical components of the booster pump. However, it is difficult to machine small through holes into vehicle-mounted water tanks formed by rotational molding. If the drainage channel is too large, insects, ants, etc., will enter the booster pump, which not only affects hygiene but may also cause the booster pump to malfunction in severe cases. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a new type of vehicle water tank, which addresses the issue of excessively large drainage channels in the water pump tank of the aforementioned rotomolded vehicle water tank.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a vehicle-mounted water tank for storing water and fixing it to a roof rack. The vehicle-mounted water tank includes a rotationally molded body, a booster pump, a first water supply pipe, a second water supply pipe, and a drainage assembly. The rotationally molded body includes a water storage chamber, a pump tank, and a water outlet hole, and the water outlet hole extends from the tank wall of the pump tank to the outer wall of the rotationally molded body. The booster pump is installed in the pump tank, and the inlet end of the booster pump is connected to the water storage chamber through the first water supply pipe. The outlet end of the booster pump is connected to the water tank. A second water supply pipe is connected to the outlet pipe hole; the bottom wall of the water pump tank has a mounting hole, and the mounting hole extends from the bottom wall of the water pump tank to the lower surface of the rotational molding body; the drainage assembly includes a first locking member and a second locking member, and the first locking member and the second locking member are respectively inserted into the mounting hole from both ends of the mounting hole and locked and fixed at the mounting hole; the first locking member and the second locking member have drainage channels formed on them for connecting the water pump tank and the outside of the rotational molding body, and the radial dimension of the drainage channel is smaller than the radial dimension of the mounting hole.

[0006] As a further improvement of this utility model, the first locking member has a first locking structure, and the second locking member has a second locking structure adapted to the first locking structure. The first locking member and the second locking member are locked and fixed at the mounting hole by the first locking structure and the second locking structure locking each other.

[0007] As a further improvement of this utility model, the first locking member includes a first nail head and a nut stud located on one side of the first nail head, and the first locking structure is formed by a threaded hole extending from the nut stud to the first nail head; the second locking member includes a second nail head and a stud located on one side of the second nail head, and the second locking structure is formed by an external thread located on the outer periphery of the stud; the drainage channel is formed by a through hole penetrating the second nail head and the stud; the radial dimensions of both the first nail head and the second nail head are greater than the radial dimension of the mounting hole, and the sum of the axial dimensions of the nut stud and the stud is greater than the axial dimension of the mounting hole.

[0008] As a further improvement of this utility model, the axial dimensions of the nut stud and the stud are respectively smaller than the axial dimension of the mounting hole.

[0009] As a further improvement of this utility model, the cross-sections of the mounting hole and the outer periphery of the nut post are both circular, and the radial dimension of the mounting hole is adapted to the radial dimension of the outer periphery of the nut post.

[0010] As a further improvement of this utility model, the cross-sections of the mounting hole and the outer periphery of the nut post are both regular polygons, and the radial dimension of the mounting hole is adapted to the radial dimension of the outer periphery of the nut post.

[0011] As a further improvement of this utility model, in the first locking member, there is a transition section between the nut post and the first nail head, and the radial dimension of the transition section gradually decreases from the radial dimension of the first nail head to the radial dimension of the nut post.

[0012] As a further improvement of this utility model, at least one of the first nail head and the second nail head has a regular hexagonal outer periphery.

[0013] As a further improvement of this utility model, the cross-section of the drainage channel is circular, and the diameter of the drainage channel is less than 3mm.

[0014] As a further improvement of this utility model, the material strength of the first locking member and the second locking member is greater than the material strength of the rotational molding body.

[0015] The present invention has the following beneficial effects: by adding a drainage component to the bottom of the water pump tank of the rotational molding body, the drainage channel of the water pump tank can meet the drainage needs while preventing insects and other pests from entering the water pump tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the vehicle-mounted water tank provided in an embodiment of this utility model.

[0017] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle.

[0018] Figure 3 This is a schematic diagram of the drainage component in the vehicle water tank being assembled onto the rotational molding body according to an embodiment of this utility model.

[0019] Figure 4 This is a cross-sectional schematic diagram of the vehicle-mounted water tank at the drainage channel provided in this embodiment of the utility model.

[0020] Figure 5 yes Figure 4 A magnified structural diagram of section B.

[0021] Figure 6 This is a schematic diagram of the structure of the first locking component in the vehicle-mounted water tank provided in this embodiment of the utility model.

[0022] Figure 7 This is a schematic diagram of the structure of the second locking component in the vehicle-mounted water tank provided in this embodiment of the utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] like Figures 1-3 The diagram shown is a structural schematic of the vehicle-mounted water tank provided in this embodiment of the present invention. This vehicle-mounted water tank can be fixed to the roof rack of a vehicle and provides domestic water for users (e.g., showering, car washing, etc.). The vehicle-mounted water tank of this embodiment includes a rotomolded body 10, a booster pump 21, a first water supply pipe 22, a second water supply pipe 23, and a drainage assembly 30. The rotomolded body 10 can hold domestic water, and the booster pump 21, the first water supply pipe 22, the second water supply pipe 23, and the drainage assembly 30 are respectively installed on the rotomolded body 10.

[0025] The aforementioned rotational molding body 10 is manufactured using rotational molding technology and includes a water storage cavity (not shown in the figure), a water pump trough 12, a mounting hole 14, and a water outlet pipe hole (not shown in the figure). The rotational molding body 10 is loaded with domestic water through the water storage cavity. The water pump trough 12 is independent of the water storage cavity. The mounting hole 14 extends from the bottom wall of the water pump trough 12 to the lower surface of the rotational molding body 10, that is, the mounting hole 14 vertically penetrates the bottom wall of the water pump trough 12.

[0026] In one embodiment of this utility model, the rotational molding body 10 is a flat strip, meaning that the length of the rotational molding body 10 (as indicated by arrow X) is much greater than its width (as indicated by arrow Y), for example, the length of the rotational molding body 10 is more than three times its width; the width of the rotational molding body 10 is greater than its height, for example, the width of the rotational molding body 10 is more than twice its height. Of course, in practical applications, the shape and size of the rotational molding body 10 can be designed as needed. In addition, the rotational molding body 10 may have several through holes 11 penetrating its upper and lower surfaces. By using fixing devices passing through the through holes 11, the rotational molding body 10 can be fixed to the roof rack.

[0027] A booster pump 21 is installed inside the pump trough 12, and its inlet end is connected to the water storage chamber via a first water supply pipe 22. The outlet end of the booster pump 21 is connected to a second water supply pipe 23, at least a portion of which extends through an outlet hole to the outer wall of the rotomolded body 10. This allows the booster pump 21 to output water stored in the water storage chamber when it is operating, increasing the water flow rate from the vehicle's water tank. Specifically, the end of the second water supply pipe 23 (exposed on the outer wall of the rotomolded body 10) can be connected to a water valve 40 (which can be connected to a shower head, etc., via a water pipe) to control the water flow. The aforementioned booster pump 21, first water supply pipeline 22, second water supply pipeline 23, the structure of the booster pump 21 fixed to the pump tank 12, and the connection structure between the booster pump 21 and the first water supply pipeline 22 and the second water supply pipeline 23 can all adopt conventional solutions in the field, and will not be described in detail here.

[0028] The mounting hole 14 can be formed during the molding of the rotational molding body 10. Since the rotational molding process relies on the flow and deposition of molten plastic within the mold, if the mold has holes, the plastic cannot form a continuous layer in this area. Therefore, the size of the mounting hole 14 is relatively large, for example, 5 mm or more. The drainage assembly 30 includes a first locking member 31 and a second locking member 32, which are inserted into the mounting hole 14 from both ends and locked in place. The first locking member 31 and the second locking member 32 have drainage channels 15 formed on them for connecting the water pump tank 12 and the outside of the rotational molding body 10. Figure 4 , Figure 5 As shown, the radial dimension of the drainage channel 15 is smaller than the radial dimension of the mounting hole 14. Specifically, the cross-section of the drainage channel 15 is circular, and its diameter can be less than 3 mm, for example. Of course, in practical applications, the cross-section of the drainage channel 15 can also be other shapes, such as regular polygons, but the processing is relatively troublesome; the mounting hole 14 can also be drilled with a drill bit after the rotational molding body 10 is formed.

[0029] The aforementioned vehicle-mounted water tank, by adding a drainage component 30 to the bottom of the water pump tank 12 of the rotomolded body 10, ensures that the drainage channel 15 of the water pump tank 12 can not only ensure smooth drainage, but also prevent insects and other objects from entering the water pump tank 12 and affecting the normal operation of the booster water pump 21.

[0030] In one embodiment of this utility model, to facilitate the installation of the booster pump 21 into the pump trough 12 and the connection between the booster pump 21 and the first water supply pipeline 22 and the second water supply pipeline 23, the opening of the pump trough 12 can be located on the top surface of the rotomolded body 10. Simultaneously, to prevent foreign objects from falling into the pump trough 12, a cover plate 13 can be fixed to the opening of the pump trough 12. At this time, the drainage channel 15 can also connect the inside and outside of the pump trough 12 when the booster pump 21 is working, thereby ensuring that the pressure inside the pump trough 12 is the same as the external atmospheric pressure, guaranteeing the normal operation of the booster pump 21.

[0031] In one embodiment of this utility model, the first locking member 31 has a first locking structure, and the second locking member 32 has a second locking structure adapted to the first locking structure. The first locking member 31 and the second locking member 32 are locked and fixed at the mounting hole 14 by the interlocking of the first locking structure and the second locking structure. This structure ensures that the drainage channel 15 is located on the drainage assembly 30, and there is no need to process a corresponding structure at the mounting hole 14 to fix the first locking member 31 and the second locking member 32. Of course, in practical applications, the first locking member 31 and the second locking member 32 can also be locked onto the rotational molding body 10, for example, by processing corresponding internal threads in the mounting hole 14, but this will increase the complexity of the process.

[0032] like Figure 6 , Figure 7 As shown, in one embodiment of this utility model, the first locking member 31 includes a first nail head 311 and a nut post 312, wherein the nut post 312 is vertically connected to one side of the first nail head 311, and the first locking structure is formed by a threaded hole 313 extending from the nut post 312 to the first nail head 311. Correspondingly, the second locking member 32 includes a second nail head 321 and a stud 322, wherein the stud 322 is vertically connected to one side of the second nail head 321, and the second locking structure is formed by an external thread located on the outer periphery of the stud 322. The drainage channel 15 is formed by a through hole 323 penetrating the second nail head 321 and the stud 322. Furthermore, the radial dimensions of the first nail head 311 and the second nail head 321 are both greater than the radial dimension of the mounting hole 14, and the sum of the axial dimensions of the nut post 312 and the stud 322 is greater than the axial dimension of the mounting hole 14.

[0033] Thus, when the first locking member 31 and the second locking member 32 are locked into the mounting hole 14, both the first nail head 311 and the second nail head 321 are located outside the mounting hole 14, and the bottom wall of the water pump tank 12 is clamped between the first nail head 311 and the second nail head 321, ensuring that the first locking member 31 and the second locking member 32 are stably fixed. Of course, in practical applications, the first locking member 31 and the second locking member 32 can also be locked together using other structures, such as a snap-fit ​​structure, but disassembly is relatively inconvenient (for example, when the drainage channel 15 is blocked and needs maintenance).

[0034] In practical use, the material strength of the first locking member 31 and the second locking member 32 is preferably greater than that of the rotationally molded body 10. This improves the locking strength of the first locking member 31 and the second locking member 32 and also prevents insects from eating into the drainage channel 15, which would increase the radial dimension and allow insects to crawl into the water pump tank 12. Specifically, the first locking member 31 and the second locking member 32 can be made of metal, and to prevent rust from clogging the through hole 323, they can be made of copper.

[0035] In one embodiment of this utility model, the axial dimensions of the nut stud 312 in the first locking member 31 and the stud 322 in the second locking member 32 are respectively smaller than the axial dimension of the mounting hole 14. This allows the nut stud 312 and the stud 322 to be threadedly connected within the mounting hole 14, and allows the first pin head 311 and the second pin head 321 to clamp the bottom wall of the water pump groove 12, preventing the first locking member 31 and the second locking member 32 from loosening due to prolonged shaking relative to the mounting hole 14 (e.g., due to bumps during vehicle operation, especially axial shaking) (when the axial dimension of the nut stud 312 is larger than the axial dimension of the mounting hole 14). Simultaneously, it also prevents the stud 322 from extending beyond the bottom wall of the water pump groove 12 (when the axial dimension of the stud 322 is larger than the axial dimension of the mounting hole 14).

[0036] Specifically, the cross-sections of the mounting hole 14 and the outer periphery of the nut post 312 are both circular, and the radial dimension of the mounting hole 14 matches the radial dimension of the outer periphery of the nut post 312. This ensures that the first locking member 31 and the second locking member 32 will not radially wobble relative to the mounting hole 14 after being locked into it, further improving the reliability of the first locking member 31 and the second locking member 32 after locking.

[0037] To further improve the reliability of locking, in one embodiment of this utility model, a transition section is provided between the nut post 312 and the first nail head 311 of the first locking member 31, and the radial dimension of the outer periphery of the transition section gradually decreases from the radial dimension of the first nail head 311 to the radial dimension of the nut post 312. Thus, during the locking process of the first locking member 31 and the second locking member 32, the transition section can be pressed against the opening of the mounting hole, thereby preventing the first locking member 31 from moving relative to the mounting hole 14.

[0038] Furthermore, the cross-sections of the mounting hole 14 and the outer periphery of the nut post 312 can also be regular polygons, and the radial dimension of the mounting hole 14 matches the radial dimension of the outer periphery of the nut post 312. This structure prevents the first locking member 31 and the second locking member 32 from not rotating relative to the mounting hole 14 after being locked into it.

[0039] To facilitate locking, in one embodiment of this invention, at least one of the first nail head 311 and the second nail head 321 has an outer periphery that is hexagonal, for example... Figure 6 The outer periphery of the first nail head 311 shown is regular hexagonal, which facilitates the use of existing locking tools (such as hex wrenches) to lock the first locking member 31 and the second locking member 32.

[0040] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A vehicle-mounted water tank for storing water and fixing it to a roof rack, characterized in that, The vehicle-mounted water tank includes a rotationally molded body, a booster pump, a first water supply pipe, a second water supply pipe, and a drainage assembly. The rotationally molded body includes a water storage chamber, a pump tank, and an outlet pipe hole, with the outlet pipe hole extending from the tank wall of the pump tank to the outer wall of the rotationally molded body. The booster pump is installed in the pump tank, with its inlet connected to the water storage chamber via the first water supply pipe, and its outlet connected to the second water supply pipe inserted into the outlet pipe hole. The bottom wall has a mounting hole, which extends from the bottom wall of the water pump tank to the lower surface of the rotational molding body. The drainage assembly includes a first locking member and a second locking member, which are respectively inserted into the mounting hole from both ends and locked in place. The first and second locking members have drainage channels formed on them to connect the water pump tank and the outside of the rotational molding body, and the radial dimension of the drainage channels is smaller than the radial dimension of the mounting hole.

2. The vehicle-mounted water tank according to claim 1, characterized in that, The first locking member has a first locking structure, and the second locking member has a second locking structure adapted to the first locking structure. The first locking member and the second locking member are locked and fixed at the mounting hole by means of the first locking structure and the second locking structure locking each other.

3. The vehicle-mounted water tank according to claim 2, characterized in that, The first locking member includes a first nail head and a nut stud located on one side of the first nail head, and the first locking structure is formed by a threaded hole extending from the nut stud to the first nail head; the second locking member includes a second nail head and a stud located on one side of the second nail head, and the second locking structure is formed by an external thread located on the outer periphery of the stud; the drainage channel is formed by a through hole penetrating the second nail head and the stud; the radial dimensions of both the first nail head and the second nail head are larger than the radial dimension of the mounting hole, and the sum of the axial dimensions of the nut stud and the stud is larger than the axial dimension of the mounting hole.

4. The vehicle-mounted water tank according to claim 3, characterized in that, The axial dimensions of the nut stud and the stud are smaller than the axial dimensions of the mounting hole.

5. The vehicle-mounted water tank according to claim 3, characterized in that, The mounting hole and the outer periphery of the nut post both have circular cross-sections, and the radial dimension of the mounting hole is adapted to the radial dimension of the outer periphery of the nut post.

6. The vehicle-mounted water tank according to claim 3, characterized in that, The mounting hole and the outer periphery of the nut post both have regular polygonal cross-sections, and the radial dimension of the mounting hole is adapted to the radial dimension of the outer periphery of the nut post.

7. The vehicle-mounted water tank according to claim 3, characterized in that, In the first locking member, there is a transition section between the nut post and the first nail head, and the radial dimension of the transition section gradually decreases from the radial dimension of the first nail head to the radial dimension of the nut post.

8. The vehicle-mounted water tank according to any one of claims 3-7, characterized in that, The outer periphery of at least one of the first nail head and the second nail head is a regular hexagon.

9. The vehicle-mounted water tank according to any one of claims 1-7, characterized in that, The drainage channel has a circular cross-section and a diameter of less than 3 mm.

10. The vehicle-mounted water tank according to any one of claims 1-7, characterized in that, The material strength of the first locking member and the second locking member is greater than the material strength of the rotational molding body.

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