Drawer assembly for waterless closestool and vehicle-mounted waterless closestool

Abstract

The utility model belongs to the technical field of waterless closestools, and particularly relates to a drawer assembly for a waterless closestool, which comprises a shell, a drawer body and a locking structure, the shell is provided with a containing cavity with a forward opening, the drawer body is arranged in the containing cavity, and the drawer can be pushed in and drawn out from the opening of the containing cavity; the locking structure comprises a spring bolt and a driving element, the spring bolt is movably arranged on the cavity wall of the containing cavity, the moving direction of the spring bolt intersects with the pulling-out direction of the drawer body, a containing area is arranged on the drawer body, the driving element is used for driving the spring bolt to move close to or away from the containing area, and when the drawer is pushed into the containing cavity, the driving element drives the spring bolt to move close to or away from the containing area. The driving element drives the lock tongue to be inserted into the containing area. When the drawer body is pushed into the containing cavity in place, the spring bolt is inserted into the receiving area, the locking structure ensures that the drawer body is reliably and stably installed in the containing cavity, the locking structure is simple and ingenious in design, and the drawer assembly is convenient and fast to assemble and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of waterless toilets, and in particular relates to a drawer assembly for waterless toilets and a vehicle-mounted waterless toilet. Background Art

[0002] RVs are called homes on wheels. It is standard to set up living areas and sanitary areas in RVs. The sanitary area is generally equipped with a toilet (toilet). The vehicle-mounted toilet is very different from the existing household toilet due to the particularity of its usage scenario. There are two types of existing vehicle-mounted toilets: flush toilets and waterless toilets. The most obvious defect of flush toilets is that the water source in RVs is limited, which increases the difficulty of using water. If the water storage capacity is increased, the volume and weight of the water tank will increase, which not only occupies the limited vehicle space, but also increases energy consumption. Therefore, vehicle-mounted waterless toilets came into being. For example, the existing patent application CN110913735A discloses a waterless toilet in a caravan, and specifically discloses that the waterless toilet is provided with a drawer, and the waterless toilet automatically packs the excrement and falls into the drawer, and the drawer contains the packed excrement. However, the existing drawers are easy to shake, and it is easy for the drawer to accidentally slide out, causing the waterless toilet to fail to use, and even the problem of excrement falling out. Utility Model Content

[0003] In order to solve the problem in the prior art that the drawer of a waterless toilet is easy to shake or even fall out, the utility model provides a drawer assembly for a waterless toilet and a vehicle-mounted waterless toilet.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a drawer assembly for a waterless toilet, comprising a shell, a drawer body and a locking structure, the shell is provided with a receiving cavity with an opening facing forward, the drawer body is arranged in the receiving cavity, and the drawer can be pushed in and pulled out from the opening of the receiving cavity;

[0005] The locking structure includes a lock tongue and a driving element. The lock tongue is movably arranged on the cavity wall of the accommodating cavity. The movement direction of the lock tongue intersects with the withdrawal direction of the drawer body. A receiving area is arranged on the drawer body. The driving element is used to drive the lock tongue to move closer to or away from the receiving area. When the drawer is pushed into the accommodating cavity, the driving element drives the lock tongue to insert into the receiving area.

[0006] Preferably, the locking structure is provided with two groups, and the two groups of locking structures are located on the left and right sides of the drawer body. The locking tongues of the locking structures located on the left and right sides effectively clamp the drawer body, and the drawer body will not shake or shift due to shaking of the external environment, and will not fall off.

[0007] Furthermore, the driving element includes an elastic member, the locking tongue is spherical, a locking tongue hole is provided on the wall of the accommodating cavity, and the locking tongue and the elastic member are both arranged in the locking tongue hole, so that the locking structure is simple and reliable, the design is ingenious, the layout is reasonable and compact, the drawer body is automatically locked, and the operation is convenient.

[0008] Furthermore, the locking structure further comprises a limiting plate, the locking tongue hole is opened through the cavity wall of the accommodating cavity, the locking tongue and the limiting plate are respectively located at the inner and outer ends of the locking tongue hole, and the elastic member is located between the locking tongue and the limiting plate, which facilitates the assembly of the locking structure and has low cost.

[0009] Furthermore, the outer side of the drawer body is provided with a vertical convex rib, and the receiving area is formed between the convex rib and the outer side of the drawer body. The receiving area has a large working area and can better match the lock tongue. The lock tongue is easy to accurately insert into the receiving area to lock the drawer body.

[0010] Preferably, a first guide surface is provided on the cavity wall of the accommodating cavity, and a second guide surface is provided on the drawer body, and both the first guide surface and the second guide surface are arranged to be tilted downward from front to back, and when the drawer body is pushed into the accommodating cavity from the opening of the accommodating cavity, the second guide surface moves along the first guide surface, so as to ensure that the drawer body can be conveniently and accurately pushed into the accommodating cavity and drawn out from the accommodating cavity.

[0011] Furthermore, the drawer body is higher in front and lower in back, and a tool placement box is arranged on the inner side of the front end of the drawer body, thereby effectively improving the space utilization rate of the drawer body.

[0012] Furthermore, an inner buckle handle is provided on the outer side of the drawer body to facilitate the push and pull operation of the drawer body.

[0013] Preferably, a trigger is provided on the drawer body, and a sensor is provided on the housing. The sensor is electrically connected to the control module of the waterless toilet, and the trigger triggers the sensor when the drawer body is pushed into the accommodating cavity. The setting of the sensor ensures that the waterless toilet can work normally only after the drawer body is pushed into place.

[0014] A vehicle-mounted waterless toilet comprises any one of the above-mentioned drawer assemblies. The vehicle-mounted waterless toilet also comprises a packing mechanism, and the drawer assembly is arranged below the packing mechanism.

[0015] Beneficial effects: The drawer assembly for a waterless toilet of the utility model first pushes the drawer body into the accommodating cavity from the opening of the accommodating cavity. During the pushing process, the second guide surface moves along the first guide surface, and the locking tongue moves along the side of the drawer body. When the locking tongue is inserted into the receiving area, the drawer body is pushed into the accommodating cavity into place. The locking structure ensures that the drawer body is reliably and stably installed in the accommodating cavity, and the design of the locking structure is simple and ingenious. The assembly and use of the drawer assembly are convenient and quick, the operation is stable and reliable, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments 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 creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the drawer assembly for a waterless toilet of the utility model, wherein the drawer body is in a pushed-in state;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the drawer assembly for a waterless toilet of the utility model from another angle, wherein the drawer body is in a pulled-out state;

[0019] Figure 3 It is a cross-sectional schematic diagram of the drawer assembly of the utility model for a waterless toilet in the left and right directions;

[0020] Figure 4 yes Figure 3 A is a partial enlarged schematic diagram;

[0021] Figure 5 It is a cross-sectional schematic diagram of the drawer assembly of the utility model for a waterless toilet in the front and rear directions;

[0022] In the figure: 1. shell, 11. accommodating cavity, 12. lock tongue hole, 13. first guide surface, 2. drawer body, 21. receiving area, 22. convex rib, 23. second guide surface, 24. tool placement box, 25. handle, 26. trigger member, 3. locking structure, 31. lock tongue, 32. elastic member, 33. limit plate. DETAILED DESCRIPTION

[0023] 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in 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.

[0024] like Figures 1 to 5 As shown, a drawer assembly for a waterless toilet comprises a shell 1, a drawer body 2 and a locking structure 3. The shell 1 is provided with a receiving cavity 11 with an opening facing forward, the drawer body 2 is arranged in the receiving cavity 11, and the drawer can be pushed in and pulled out from the opening of the receiving cavity 11; the locking structure 3 comprises a locking tongue 31 and a driving element, the locking tongue 31 is movably arranged on the cavity wall of the receiving cavity 11, the moving direction of the locking tongue 31 intersects with the pulling-out direction of the drawer body 2, the drawer body 2 is provided with a receiving area 21, the driving element is used to drive the locking tongue 31 to move closer to or away from the receiving area 21, and when the drawer is pushed into the receiving cavity 11, the driving element drives the locking tongue 31 to insert into the receiving area 21. In this embodiment, for the convenience of description, it is assumed that the user faces forward when sitting down to use the toilet.

[0025] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, the locking structure 3 is provided with two groups, and the two groups of the locking structures 3 are located on the left and right sides of the drawer body 2. The lock tongues 31 of the locking structures 3 located on the left and right sides can effectively clamp the drawer body 2, and the drawer body 2 will not shake or shift due to the shaking of the external environment, and will not be separated. Further, in this embodiment, the driving element includes an elastic member 32, and the lock tongue 31 is spherical so that the lock tongue 31 can roll smoothly along the two sides of the drawer body 2. The cavity wall of the accommodating cavity 11 is provided with a lock tongue hole 12, and the lock tongue 31 and the elastic member 32 are both arranged in the lock tongue hole 12. Further, in this embodiment, the outer side surface of the drawer body 2 is provided with a vertical convex rib 22, and the receiving area 21 is formed between the convex rib 22 and the outer side surface of the drawer body 2. The working area of ​​the receiving area 21 is large, which can better match the lock tongue 31, and the lock tongue 31 is easy to accurately insert into the receiving area 21 to achieve locking the drawer body 2. Furthermore, in this embodiment, in order to facilitate the assembly of the locking structure 3, the locking structure 3 also includes a limiting plate 33, the locking tongue hole 12 is opened through the cavity wall of the accommodating cavity 11, the locking tongue 31 and the limiting plate 33 are respectively located at the inner and outer ends of the locking tongue hole 12, and the elastic member 32 is located between the locking tongue 31 and the limiting plate 33.

[0026] Specifically, in this embodiment, Figures 1 to 5 As shown, a first guide surface 13 is provided on the cavity wall of the accommodating cavity 11, and a second guide surface 23 is provided on the drawer body 2. Both the first guide surface 13 and the second guide surface 23 are arranged to be tilted downward from front to back. When the drawer body 2 is pushed into the accommodating cavity 11 from the opening of the accommodating cavity 11, the second guide surface 23 moves along the first guide surface 13, ensuring that the drawer body 2 is conveniently and accurately pushed into the accommodating cavity 11 and pulled out of the accommodating cavity 11. Further, in this embodiment, an inner buckle handle 25 is provided on the outside of the drawer body 2 to facilitate the push and pull operation of the drawer body 2. Further, in this embodiment, the drawer body 2 is higher in front and lower in the back, and a tool placement box 24 is provided on the inner side of the front end of the drawer body 2 to effectively improve the space utilization rate of the drawer body 2.

[0027] Specifically, in this embodiment, Figure 2 and Figure 5 As shown, a trigger member 26 is provided on the drawer body 2, and a sensor is provided on the outer shell 1. The sensor is electrically connected to the control module of the waterless toilet. When the drawer body 2 is pushed into the accommodating cavity 11 and into place, the trigger member 26 triggers the sensor to ensure that the waterless toilet can work normally only after the drawer body 2 is pushed into place.

[0028] A vehicle-mounted waterless toilet, a drawer assembly of this embodiment, the vehicle-mounted waterless toilet also includes a packing mechanism, the drawer assembly is arranged below the packing mechanism, the packing mechanism of this embodiment can select an existing packing mechanism, such as the packing mechanism disclosed in the existing patent application CN110913735A.

[0029] Here’s how it works:

[0030] First, push the drawer body 2 into the accommodating cavity 11 from the opening of the accommodating cavity 11. During the pushing process, the second guide surface 23 moves along the first guide surface 13, and the lock tongue 31 rolls in contact with the side of the drawer body 2. When the lock tongue 31 passes over the rib 22 and is inserted into the receiving area 21, the sensor is also triggered by the trigger member 26, and the drawer body 2 is pushed into the accommodating cavity 11 and into place. At this time, the lock tongues 31 on the left and right sides clamp the drawer body 2 to ensure that the drawer body 2 is reliably and stably installed in the accommodating cavity 11. After the drawer body 2 is pushed into the accommodating cavity 11 and into place, the sensor transmits the signal to the control module of the waterless toilet, and the vehicle-mounted waterless toilet can be used normally.

[0031] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A drawer assembly for a waterless toilet, characterized in that: The invention comprises a shell (1), a drawer body (2) and a locking structure (3); the shell (1) is provided with a receiving cavity (11) with an opening facing forward; the drawer body (2) is arranged in the receiving cavity (11); and the drawer can be pushed in and pulled out from the opening of the receiving cavity (11); The locking structure (3) comprises a locking tongue (31) and a driving element. The locking tongue (31) is movably arranged on the cavity wall of the accommodating cavity (11). The moving direction of the locking tongue (31) intersects with the withdrawal direction of the drawer body (2). A receiving area (21) is arranged on the drawer body (2). The driving element is used to drive the locking tongue (31) to move closer to or away from the receiving area (21). When the drawer is pushed into the accommodating cavity (11), the driving element drives the locking tongue (31) to be inserted into the receiving area (21).

2. The drawer assembly for a waterless toilet according to claim 1, characterized in that: The locking structures (3) are provided in two groups, and the two groups of locking structures (3) are located on the left and right sides of the drawer body (2).

3. The drawer assembly for a waterless toilet according to claim 2, characterized in that: The driving element comprises an elastic member (32), the locking tongue (31) is spherical, a locking tongue hole (12) is provided on the cavity wall of the accommodating cavity (11), and the locking tongue (31) and the elastic member (32) are both arranged in the locking tongue hole (12).

4. The drawer assembly for a waterless toilet according to claim 3, characterized in that: The locking structure (3) further comprises a limiting plate (33); the locking tongue hole (12) is opened through the cavity wall of the accommodating cavity (11); the locking tongue (31) and the limiting plate (33) are respectively located at the inner and outer ends of the locking tongue hole (12); and the elastic member (32) is located between the locking tongue (31) and the limiting plate (33).

5. The drawer assembly for a waterless toilet according to claim 3, characterized in that: The outer side surface of the drawer body (2) is provided with a convex rib (22) in the form of a vertical strip, and the receiving area (21) is formed between the convex rib (22) and the outer side surface of the drawer body (2).

6. The drawer assembly for a waterless toilet according to any one of claims 1 to 5, characterized in that: A first guide surface (13) is arranged on the cavity wall of the accommodating cavity (11), and a second guide surface (23) is arranged on the drawer body (2). The first guide surface (13) and the second guide surface (23) are both arranged to be inclined downward from front to back. When the drawer body (2) is pushed into the accommodating cavity (11) from the opening of the accommodating cavity (11), the second guide surface (23) moves along the first guide surface (13).

7. The drawer assembly for a waterless toilet according to claim 6, characterized in that: The drawer body (2) is higher in the front and lower in the back, and a tool placement box (24) is provided on the inner side of the front end of the drawer body (2).

8. The drawer assembly for a waterless toilet according to any one of claims 1 to 5, characterized in that: An inward-locking handle (25) is provided on the outer side of the drawer body (2).

9. The drawer assembly for a waterless toilet according to any one of claims 1 to 5, characterized in that: The drawer body (2) is provided with a trigger member (26), and the housing (1) is provided with a sensor, the sensor being electrically connected to a control module of the waterless toilet. When the drawer body (2) is pushed into the accommodating cavity (11) and in place, the trigger member (26) triggers the sensor.

10. A vehicle-mounted waterless toilet, characterized in that: The vehicle-mounted waterless toilet comprises the drawer assembly as described in any one of claims 1 to 9, and further comprises a packing mechanism, wherein the drawer assembly is arranged below the packing mechanism.

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