Box-assembled portable hand washing device

Abstract

The invention belongs to the technical field of hand washing equipment, and provides a box-assembled portable hand washing device, which comprises: a foldable water purifying box for storing purified water to provide water for hand washing; the foldable sewage tank is set to have a working state and a non-working state which can be mutually switched, and when the sewage tank is in the non-working state, the sewage tank is buckled on the clean water tank and forms a storage box together with the clean water tank; when the sewage tank is in a working state, the sewage tank can collect sewage; the lock catch assembly is arranged on the clean water tank and the sewage tank, and the lock catch assembly has a locking state and an unlocking state which can be switched mutually; and the hand washing assembly is arranged on the purified water tank and used for leading out purified water in the purified water tank for hand washing and meanwhile leading sewage generated after hand washing into the sewage tank. The box-type portable hand washing device provided by the invention is simple in structure and convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of hand washing equipment, and in particular to a box-type portable hand washing device. Background Art

[0002] Whether it is field training or wartime, medical personnel need to wash their hands before rescuing patients. However, although the existing portable hand washing devices can be disassembled and assembled, they need to assemble the various parts when in use, and then disassemble the various parts after use for storage, which is extremely inconvenient to operate. Summary of the invention

[0003] In view of the defects in the prior art, an object of the present invention is to provide a box-type portable hand washing device to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0004] In order to achieve the above object, the present invention provides a box-type portable hand washing device, comprising:

[0005] A foldable clean water tank for storing clean water to provide water for hand washing;

[0006] A foldable sewage tank is configured to have a working state and a non-working state that can be switched between each other. When the sewage tank is in the non-working state, the sewage tank is buckled on the clean water tank and together with the clean water tank forms a storage box; when the sewage tank is in the working state, the sewage tank can collect sewage;

[0007] a lock assembly, which is arranged on the clean water tank and the sewage tank, and the lock assembly has a locked state and an unlocked state that can be switched with each other. When the lock assembly is in the locked state, the lock assembly can lock the sewage tank so that the sewage tank cannot be separated from the clean water tank; when the lock assembly is in the unlocked state, the lock assembly releases the lock on the sewage tank so that the sewage tank can be separated from the clean water tank; and

[0008] The hand washing assembly is arranged on the clean water tank and is used to draw out the clean water in the clean water tank for hand washing and at the same time, draw the sewage generated after hand washing into the sewage tank.

[0009] Furthermore, the clean water tank and the sewage tank have the same structure, including:

[0010] The main body is a foldable cylindrical or barrel-shaped structure:

[0011] A base, which is arranged at the bottom of the main body and fixedly connected to the main body;

[0012] A top seat in a U-shaped shape, the top seat is arranged on the top of the main body and is fixedly connected to the main body; and

[0013] The support assembly is arranged between the base and the top seat, and the support assembly has a folded state and an unfolded state that can be switched to each other, so that the support assembly can support the top seat or the base at different positions.

[0014] Further, the support assembly includes support units symmetrically arranged on both sides of the main body, and the support units include:

[0015] A first sliding block, which is disposed on the base and is slidably connected to the base;

[0016] A second sliding block, which is correspondingly arranged on the top seat and slidably connected to the top seat;

[0017] A scissor-fork structure, wherein a first side of a first end thereof is hinged to the base, and a second side thereof is hinged to the first slider, and a first side of a second end of the scissor-fork structure is hinged to the top seat, and a second side thereof is hinged to the second slider; and

[0018] A driving structure is arranged on the base or the top seat, and the driving structure is used to drive the first slider or the second slider to perform reciprocating linear motion.

[0019] Furthermore, the driving structure includes a screw rod, which is arranged on the base and rotatably connected to the base. The first slider is sleeved on the screw rod and threadably connected to the screw rod, so that when the screw rod rotates, it can drive the first slider to move.

[0020] Furthermore, the support assembly further includes a transmission mechanism, and the transmission mechanism includes:

[0021] A third transmission shaft, which is disposed on the base and is rotatably connected to the base;

[0022] A driving wheel, which is coaxially sleeved on the third transmission shaft and is drivingly connected to the third transmission shaft;

[0023] There are two driven wheels, which are coaxially sleeved on the two screw rods and are drivingly connected to the screw rods; and

[0024] The transmission element is annular and corresponds to the driven wheel one by one. The transmission element is correspondingly sleeved on the driving wheel and the driven wheel and can rotate with the rotation of the driving wheel or the driven wheel.

[0025] Furthermore, the hand washing assembly comprises:

[0026] A hand-washing sink, which is arranged above the clean water tank;

[0027] A plurality of telescopic rods are provided, wherein a first end of the telescopic rod is fixedly connected to the hand-washing sink, and a second end of the telescopic rod is fixedly connected to the clean water tank;

[0028] A faucet, which is arranged on the wash basin;

[0029] A clean water pipe, which is used to guide the clean water in the clean water tank to the faucet, and is arranged in the clean water tank;

[0030] A telescopic tube, a first end of which is connected to the faucet and a second end of which is connected to the water purification pipe;

[0031] A sewage pipe, which is used to introduce sewage in the wash basin into the sewage tank, wherein the first end of the sewage pipe is connected to and communicates with the water outlet of the wash basin, and the second end is communicated with the sewage tank;

[0032] A delivery pump is arranged on the clean water pipe, and is used to apply force to the clean water in the clean water tank so that the clean water in the clean water tank can enter from the clean water pipe and flow out from the faucet.

[0033] Furthermore, the delivery pump comprises:

[0034] The pump body comprises:

[0035] a shell, which is hollow and provided with a water inlet and a water outlet, wherein the water inlet of the shell is connected to the clean water tank, and the water outlet is connected to the clean water pipe; and

[0036] a rotor disposed in the housing; and

[0037] The power unit includes:

[0038] A pedal, a first end of which is hinged to the clean water tank and a second end of which is freely extending;

[0039] A scroll torsion spring is arranged at the hinge center of the pedal, the two ends of the scroll torsion spring are respectively connected to the pedal and the clean water tank, and in a natural state, the scroll torsion spring applies elastic force to the pedal so that the pedal has a tendency to rotate in the opposite direction; and

[0040] A conversion mechanism, whose power input end is drivingly connected to the power output shaft of the pedal, and whose power output end is drivingly connected to the power input shaft of the rotor. The conversion mechanism is used to convert the power transmitted from the pedal into power in a positive direction and transmit it to the power input shaft of the rotor to drive the rotor to rotate in the positive direction.

[0041] Beneficial effects of the present invention:

[0042] The box-type portable hand-washing device provided by the present invention has a simple structure, a reasonable design, and can be folded. When in use, there is no need to assemble the various parts, and after use, there is no need to disassemble the various parts, so the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0044] Figure 1 A three-dimensional view of a box-type portable hand washing device in working state provided by an embodiment of the present invention;

[0045] Figure 2 for Figure 1 A three-dimensional view of the box-type portable hand washing device in a folded state

[0046] Figure 3 for Figure 1 A perspective view of the clean water tank and the dirty water tank of the box-assembled portable hand washing device shown;

[0047] Figure 4 for Figure 1 A cross-sectional view of the box-assembled portable hand washing device shown;

[0048] Figure 5 for Figure 4 An enlarged view of section A is shown.

[0049] Reference numerals:

[0050] 11. Clean water tank; 12. Sewage tank; 101. Main body; 102. Base; 103. Top seat; 104. First slider; 105. Second slider; 106. Scissors structure; 107. Screw; 108. Third transmission shaft; 109. Driving wheel; 110. Driven wheel; 111. Transmission element; 20. Lock assembly; 31. Wash basin; 32. Faucet; 33. Clean water pipe; 34. Telescopic pipe; 35. Telescopic rod; 36. Sewage pipe; 371. Shell; 372. Rotor; 373. Pedal; 374. First transmission shaft; 375. First bevel gear; 376. Second bevel gear; 377. Second transmission shaft; 378. Third bevel gear; 379. First one-way transmission structure; 380. Second one-way transmission structure. DETAILED DESCRIPTION

[0051] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0052] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0055] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] like Figure 1-5As shown, the present invention provides a box-type portable hand washing device, including a clean water tank 11, a sewage tank 12, a locking assembly 20 and a hand washing assembly.

[0058] The clean water tank 11 is foldable and used to store clean water to provide water for hand washing for the hand washing assembly. The sewage tank 12 is foldable and is configured to have a working state and a non-working state that can be switched to each other. When the sewage tank 12 is in the non-working state, the sewage tank 12 is buckled on the clean water tank 11 and together with the clean water tank 11 forms a storage box. When the sewage tank 12 is in the working state, the sewage tank 12 can collect sewage, that is, the sewage tank 12 is removed from the clean water tank 11 to collect sewage generated during the hand washing process.

[0059] The lock assembly 20 is arranged on the clean water tank 11 and the sewage tank 12. The lock assembly 20 has a locked state and an unlocked state that can be switched to each other. When the lock assembly 20 is in the locked state, the lock assembly 20 can lock the sewage tank 12 so that the sewage tank 12 cannot be separated from the clean water tank 11; when the lock assembly 20 is in the unlocked state, the lock assembly 20 releases the lock on the sewage tank 12 so that the sewage tank 12 can be separated from the clean water tank 11. The lock assembly 20 is a prior art, for example, a lock structure for locking a suitcase, etc., and will not be described in detail here.

[0060] The hand washing assembly is arranged on the clean water tank 11 , and is used to draw out the clean water in the clean water tank 11 for hand washing, and at the same time, to draw the sewage generated after hand washing into the sewage tank 12 .

[0061] like Figure 1 , 2 As shown in FIGS. 3 and 4 , the clean water tank 11 and the sewage tank 12 have the same structure, including a main body 101 , a base 102 , a top seat 103 and a supporting assembly.

[0062] Among them, the main body 101 is a foldable tube (barrel) structure. Specifically, the main body 101 of the tube structure is hollow and open at both ends, and the main body 101 of the barrel structure is hollow and open at one end. The base 102 is arranged at the bottom of the main body 101 and is fixedly connected to the main body 101. The top seat 103 is in a mouth shape, and the top seat 103 is arranged at the top of the main body 101 and is fixedly connected to the main body 101. The support assembly is arranged between the base 102 and the top seat 103, and the support assembly has a folding state and an unfolding state that can be switched to each other to support the top seat 103 or the base 102 in different positions. Specifically, when the main body 101 is folded, the support assembly is folded together to support the top seat 103; when the main body 101 is unfolded, the support assembly is unfolded together to support the top seat 103.

[0063] Preferably, the bottom of the clean water tank 11 and the sewage tank 12 are both provided with support feet, and the support feet are retractable structures to adapt to different terrains.

[0064] like Figure 1 , 2 As shown in Figure 3, the support assembly includes support units symmetrically arranged on both sides of the main body 101. The support unit includes a first slider 104, a second slider 105, a scissor structure 106 and a driving structure.

[0065] The first slider 104 is disposed on the base 102 and is slidably connected to the base 102, so that the first slider 104 can only perform reciprocating linear motion along a preset direction. The second slider 105 is correspondingly disposed on the top seat 103 and is slidably connected to the top seat 103, so that the second slider 105 can only perform reciprocating linear motion along a preset direction. The first side of the first end of the scissor-fork structure 106 is hinged to the base 102, and the second side is hinged to the first slider 104. The first side of the second end of the scissor-fork structure 106 is hinged to the top seat 103, and the second side is hinged to the second slider 105.

[0066] The driving structure is disposed on the base 102 or the top seat 103, and the driving structure is used to drive the first slider 104 or the second slider 105 to perform reciprocating linear motion. Specifically, when the driving structure is disposed on the base 102, the driving structure is used to drive the first slider 104 to perform reciprocating linear motion; when the driving structure is disposed on the top seat 103, the driving structure is used to drive the second slider 105 to perform reciprocating linear motion.

[0067] When in use, the driving structure drives the first slider 104 or the second slider 105 to move, thereby changing the angle between the scissors arms of the scissors structure 106, thereby achieving the purpose of expanding or folding the scissors structure 106, wherein when the driving structure drives the first slider 104 or the second slider 105 to move in a direction away from the first side of the scissors structure 106, the angle between the scissors arms of the scissors structure 106 increases, and the scissors structure 106 is folded; when the driving structure drives the first slider 104 or the second slider 105 to move in a direction close to the first side of the scissors structure 106, the angle between the scissors arms of the scissors structure 106 becomes smaller, and the scissors structure 106 is expanded.

[0068] The supporting unit provided in this embodiment has a simple structure, and the purpose of unfolding or folding the sewage tank 12 and the clean water tank 11 can be achieved by only driving the first slider 104 or the second slider 105 to move through the driving structure, which is easy to operate.

[0069] like Figure 1 , 2As shown in FIG. 3 , in this embodiment, the driving structure is arranged on the base 102 as an example. The driving structure arranged on the top seat 103 is basically the same as the structure in this embodiment, and will not be described in detail.

[0070] The driving structure includes a screw rod 107. The screw rod 107 is disposed on the base 102, and the screw rod 107 is rotatably connected to the base 102. The first slider 104 is sleeved on the screw rod 107 and is threadedly connected to the screw rod 107, so that when the screw rod 107 rotates, the first slider 104 can be driven to move.

[0071] When in use, the screw rod 107 is rotated to drive the first slider 104 to move, thereby changing the angle between the scissor arms of the scissor structure 106, thereby achieving the purpose of unfolding or folding the scissor structure 106. Specifically, when the screw rod 107 is rotated in the forward direction, the first slider 104 moves in the direction away from the first side of the scissor structure 106, the angle between the scissor arms of the scissor structure 106 increases, and the scissor structure 106 is folded; when the screw rod 107 is rotated in the reverse direction, the first slider 104 moves in the direction close to the first side of the scissor structure 106, the angle between the scissor arms of the scissor structure 106 decreases, and the scissor structure 106 unfolds.

[0072] The driving structure in this embodiment is simple in structure, and the purpose of unfolding or folding the scissor-fork structure 106 can be achieved by simply rotating the screw rod 107, which is easy to operate.

[0073] like Figure 3 As shown, the support assembly further includes a transmission mechanism, which includes a third transmission shaft 108 , a driving wheel 109 , a driven wheel 110 and a transmission element 111 .

[0074] The third transmission shaft 108 is arranged on the base 102 and is rotatably connected to the base 102. The driving wheel 109 is coaxially sleeved on the third transmission shaft 108 and is transmission-connected to the third transmission shaft 108. Two driven wheels 110 are provided, and the two driven wheels 110 are coaxially sleeved on the two screw rods 107 and are transmission-connected to the screw rods 107. The transmission element 111 is annular, and the transmission element 111 corresponds to the driven wheel 110 one by one. The transmission element 111 is correspondingly sleeved on the driving wheel 109 and the driven wheel 110 and can rotate with the rotation of the driving wheel 109 or the driven wheel 110. The transmission element 111 can be a transmission belt, a synchronous belt, a transmission chain, etc.

[0075] When in use, the purpose of synchronously driving the two screw rods 107 to rotate can be achieved by rotating the third transmission shaft 108, which is easy to operate.

[0076] Preferably, a driving handle 40 is provided at the power input end of the third transmission shaft 108, and the driving handle 40 is detachably connected to the third transmission shaft 108. When in use, the third transmission shaft 108 is rotated by rotating the driving handle 40, which is easy to operate and does not require a motor, thus overcoming the problem of being unable to use without power.

[0077] like Figure 1 , 4 As shown in Figure 5, the hand washing assembly includes a hand washing sink 31, a faucet 32, a water purification pipe 33, a telescopic pipe 34, a telescopic rod 35, a sewage pipe 36 and a delivery pump.

[0078] The wash basin 31 is arranged above the clean water tank 11. A plurality of telescopic rods 35 are arranged, and a first end of the telescopic rod 35 is fixedly connected to the wash basin 31, and a second end of the telescopic rod 35 is fixedly connected to the clean water tank 11. A faucet 32 ​​is arranged on the wash basin 31. A clean water pipe 33 is arranged in the clean water tank 11. A first end of the telescopic pipe 34 is connected to the faucet 32, and a second end is connected to the clean water pipe 33. A sewage pipe 36 is used to introduce the sewage in the wash basin 31 into the sewage tank 12, and a first end of the sewage pipe 36 is connected and communicated with a water outlet of the wash basin 31, and a second end is communicated with the sewage tank 12. A delivery pump is arranged on the clean water pipe 33, and a delivery pump is used to apply a force to the clean water in the clean water tank 11, so that the clean water in the clean water tank 11 can enter from the clean water pipe 33 and flow out from the faucet 32.

[0079] Of course, the clean water pipe 33 and the sewage pipe 36 can be telescopic pipes, or flexible pipes that can be folded, such as clinker pipes, rubber pipes, etc.

[0080] It should be noted that the delivery pump can be either a manual pump or an electric pump, and no further restrictions are imposed herein.

[0081] Since the portable hand washing device is often used in the wild, it is usually faced with the risk of power shortage. Figure 4 , 5 As shown, the delivery pump includes a pump body and a power device.

[0082] The pump body includes a housing 371 and a rotor 372. The housing 371 is hollow and is provided with a water inlet and a water outlet. The water inlet of the housing 371 is connected to the clean water tank 11, and the water outlet is connected to the clean water pipe 33. The rotor 372 is arranged in the housing 371. That is, the pump body is a rotor pump, such as a dual-rotor pump, a three-rotor pump, etc. These are all existing technologies and will not be described in detail here.

[0083] The power device is used to provide power to the rotor 372 to drive the rotor 372 to rotate, thereby achieving the purpose of conveying clean water. The power device includes a pedal 373, a scroll torsion spring (not shown in the drawings) and a conversion mechanism.

[0084] The first end of the pedal 373 is hinged to the clean water tank 11, and the second end is freely extended. In this embodiment, the first end of the pedal 373 is hinged to the base 102 of the clean water tank 11. The scroll torsion spring is arranged at the hinge center of the pedal 373, and the two ends of the scroll torsion spring are respectively connected to the pedal 373 and the clean water tank 11, and in the natural state, the scroll torsion spring applies elastic force to the pedal 373 so that the pedal 373 has a tendency to rotate in the opposite direction. The power input end of the conversion mechanism is transmission-connected with the power output shaft of the pedal 373, and the power output end is transmission-connected with the power input shaft of the rotor 372. The conversion mechanism is used to convert the power transmitted from the pedal 373 into power in the positive direction, and transmit it to the power input shaft of the rotor 372 to drive the rotor 372 to rotate in the positive direction, thereby achieving the purpose of conveying clean water.

[0085] It should be noted that the conversion mechanism converts the power transmitted by the pedal 373 into power in the positive direction, that is, only when the pedal 373 rotates in the positive direction, the pedal 373 will drive the rotor 372 to rotate in the positive direction through the conversion mechanism, and when the pedal 373 rotates in the reverse direction, the pedal 373 will not drive the rotor 372 to rotate through the conversion mechanism. In this case, the conversion mechanism can be a ratchet structure, a one-way bearing, etc. It can also be that when the pedal 373 rotates in the forward and reverse directions or in the reverse direction, the pedal 373 can drive the rotor 372 to rotate in the positive direction through the conversion mechanism.

[0086] When in use, the pedal 373 is stepped on to make the pedal 373 rotate in the positive direction to overcome the elastic force of the scroll torsion spring. The pedal 373 drives the power input shaft of the pedal 373 to rotate in the positive direction, and the pedal 373 transmits power to the conversion mechanism, thereby driving the rotor 372 to rotate in the positive direction. When the pedal 373 rotates in the reverse direction under the elastic force of the scroll torsion spring, the pedal 373 may not be able to drive the rotor 372 to rotate through the conversion mechanism, or the pedal 373 may still drive the rotor 372 to rotate in the positive and reverse directions through the conversion mechanism.

[0087] However, if Figure 4 , 5 As shown, in this embodiment, the conversion mechanism includes a first transmission shaft 374 , a first bevel gear 375 , a second bevel gear 376 , a second transmission shaft 377 and a third bevel gear 378 .

[0088] The first transmission shaft 374 is rotatably connected to the base 102, and the first transmission shaft 374 is transmission-connected to the power output shaft of the pedal 373. The first bevel gear 375 is coaxially sleeved on the first transmission shaft 374, and the first bevel gear 375 is transmission-connected to the first transmission shaft 374 through a first one-way transmission structure, so that the first transmission shaft 374 can only drive the first bevel gear 375 to rotate along a first preset direction. The second bevel gear 376 is coaxially sleeved on the first transmission shaft 374, and the second bevel gear 376 is transmission-connected to the first transmission shaft 374 through a second one-way transmission structure, so that the first transmission shaft 374 can only drive the second bevel gear 376 to rotate along a second preset direction, wherein the first preset direction is opposite to the second preset reverse direction.

[0089] The second transmission shaft 377 is rotationally connected to the base 102 , and is transmission-connected to the power input shaft of the rotor 372 . The third bevel gear 378 is coaxially sleeved on the second transmission shaft 377 , and the third bevel gear 378 is meshed with the first bevel gear 375 and the second bevel gear 376 .

[0090] During use, when the pedal 373 is stepped on, the pedal 373 drives the first transmission shaft 374 to rotate in the forward and reverse directions. The first transmission shaft 374 drives the first bevel gear 375 to rotate in the forward direction through the first unidirectional transmission structure. Since the first bevel gear 375 is located on the first side of the third bevel gear 378, the first bevel gear 375 drives the third bevel gear 378 to rotate in the forward direction, thereby driving the rotor 372 to rotate in the forward and reverse directions through the second transmission shaft 377, thereby achieving the purpose of transporting clean water.

[0091] Under the action of the second one-way transmission structure, the first transmission shaft 374 can only drive the second bevel gear 376 to rotate in the reverse direction, and conversely, the second bevel gear 376 can only drive the first transmission shaft 374 to rotate in the positive direction. Therefore, when the first transmission shaft 374 rotates in the positive direction, the first transmission shaft 374 cannot drive the second bevel gear 376 to rotate in the positive direction. However, since the second bevel gear 376 is on the second side of the third bevel gear 378, the third bevel gear 378 drives the second bevel gear 376 to rotate in the reverse direction. Under the action of the second one-way transmission structure, the second bevel gear 376 will not transmit power to the first transmission shaft 374.

[0092] After releasing the pedal 373, the scroll torsion spring drives the pedal 373 to rotate in the opposite direction, and the pedal 373 drives the first transmission shaft 374 to rotate in the opposite direction. The first transmission shaft 374 drives the second bevel gear 376 to rotate in the opposite direction through the second one-way transmission structure. Since the second bevel gear 376 is on the second side of the third bevel gear 378, the second bevel gear 376 drives the third bevel gear 378 to rotate in the opposite direction, thereby driving the rotor 372 to rotate in the forward and reverse directions through the second transmission shaft 377, thereby achieving the purpose of transporting clean water.

[0093] Under the action of the first one-way transmission structure, the first transmission shaft 374 can only drive the first bevel gear 375 to rotate in the positive direction, and conversely, the first bevel gear 375 can only drive the first transmission shaft 374 to rotate in the reverse direction. Therefore, when the pedal 373 rotates in the reverse direction under the action of the scroll torsion spring, the first transmission shaft 374 cannot drive the first bevel gear 375 to rotate in the reverse direction. Since the first bevel gear 375 is located on the first side of the third bevel gear 378, the third bevel gear 378 drives the first bevel gear 375 to rotate in the positive direction. Under the action of the first one-way transmission structure, the first bevel gear 375 will not transmit power to the first transmission shaft 374.

[0094] The transmission structure provided in this embodiment has a simple structure and a reasonable design. Regardless of whether the pedal 373 rotates in the forward or reverse direction, or the pedal 373 rotates in the reverse direction, it can drive the rotor 372 to rotate in the forward direction, thereby achieving the purpose of conveying clean water with a high conveying efficiency.

[0095] Specifically, the first one-way transmission structure and the second one-way transmission structure can be one-way bearings, ratchet structures, etc. No excessive restrictions are made here. In this embodiment, the first one-way transmission structure and the second one-way transmission structure are one-way bearings.

[0096] In the specification of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A portable hand washing device in a box, characterized in that: include: A foldable clean water tank (11) for storing clean water to provide water for hand washing; A foldable sewage tank (12) is configured to have a working state and a non-working state that can be switched between each other; when the sewage tank (12) is in the non-working state, the sewage tank (12) is buckled on the clean water tank (11) and together with the clean water tank (11) forms a storage box; when the sewage tank (12) is in the working state, the sewage tank (12) can collect sewage; a lock assembly, which is arranged on the clean water tank (11) and the sewage tank (12), the lock assembly having a locked state and an unlocked state that can be switched with each other, when the lock assembly is in the locked state, the lock assembly can lock the sewage tank (12), so that the sewage tank (12) cannot be separated from the clean water tank (11); when the lock assembly is in the unlocked state, the lock assembly releases the lock on the sewage tank (12), so that the sewage tank (12) can be separated from the clean water tank (11); and A hand washing assembly is arranged on the clean water tank (11), and is used to draw out clean water in the clean water tank (11) for hand washing, and at the same time, to draw sewage generated after hand washing into the sewage tank (12).

2. The portable hand washing device in a box assembly according to claim 1 is characterized in that: The clean water tank (11) and the sewage tank (12) have the same structure, including: The main body (101) is a foldable cylindrical or barrel-shaped structure: A base (102), which is arranged at the bottom of the main body (101) and is fixedly connected to the main body (101); A top seat (103) is in a U-shaped shape, and the top seat (103) is arranged on the top of the main body (101) and is fixedly connected to the main body (101); and A support assembly is arranged between the base (102) and the top seat (103), and the support assembly has a folded state and an unfolded state that can be switched to each other, so that the support assembly can support the top seat (103) or the base (102) at different positions.

3. The portable hand washing device in a box assembly according to claim 2 is characterized in that: The support assembly comprises support units symmetrically arranged on both sides of the main body (101), and the support units comprise: A first sliding block (104), which is disposed on the base (102) and is slidably connected to the base (102); A second sliding block (105), which is correspondingly arranged on the top seat (103) and is slidably connected to the top seat (103); a scissor-fork structure (106), wherein a first side of a first end thereof is hinged to the base (102), and a second side thereof is hinged to the first slider (104); a first side of a second end of the scissor-fork structure (106) is hinged to the top seat (103), and a second side thereof is hinged to the second slider (105); and A driving structure is arranged on the base (102) or the top seat (103), and the driving structure is used to drive the first slider (104) or the second slider (105) to perform reciprocating linear motion.

4. The portable hand washing device in a box assembly according to claim 3 is characterized in that: The driving structure comprises a screw rod (107), wherein the screw rod (107) is arranged on the base (102), and the screw rod (107) is rotatably connected to the base (102); the first sliding block (104) is sleeved on the screw rod (107) and is threadedly connected to the screw rod (107), so that when the screw rod (107) rotates, the first sliding block (104) can be driven to move.

5. The portable hand washing device in a box assembly according to claim 4 is characterized in that: The support assembly further includes a transmission mechanism, and the transmission mechanism includes: a third transmission shaft (108), which is disposed on the base (102) and is rotatably connected to the base (102); A driving wheel (109) is coaxially sleeved on the third transmission shaft (108) and is transmission-connected to the third transmission shaft (108); Two driven wheels (110) are provided, and the two driven wheels (110) are respectively coaxially sleeved on the two screw rods (107) and are drivingly connected to the screw rods (107); and The transmission element (111) is annular and corresponds to the driven wheel (110) one by one. The transmission element (111) is correspondingly sleeved on the driving wheel (109) and the driven wheel (110) and can rotate with the rotation of the driving wheel (109) or the driven wheel (110).

6. The portable hand washing device in a box assembly according to any one of claims 1 to 5, characterized in that: The hand washing assembly comprises: A hand-washing trough (31), which is arranged above the clean water tank (11); A plurality of telescopic rods (35) are provided, wherein a first end of the telescopic rod (35) is fixedly connected to the hand washing trough (31), and a second end of the telescopic rod (35) is fixedly connected to the clean water tank (11); A faucet (32) disposed on the wash basin (31); A clean water pipe (33), used for guiding the clean water in the clean water tank (11) to the faucet (32), and arranged in the clean water tank (11); A telescopic tube (34), a first end of which is connected to the faucet (32) and a second end of which is connected to the water purification pipe (33); A sewage pipe (36) for introducing sewage in the hand-washing trough (31) into the sewage tank (12), wherein a first end of the sewage pipe (36) is connected to and communicates with a water outlet of the hand-washing trough (31), and a second end of the sewage pipe (36) is communicated with the sewage tank (12); A delivery pump is arranged on the clean water pipe (33), and is used to apply force to the clean water in the clean water tank (11), so that the clean water in the clean water tank (11) can enter from the clean water pipe (33) and flow out from the faucet (32).

7. The portable hand washing device in a box assembly according to claim 6, characterized in that: The delivery pump includes: The pump body comprises: a shell (371) which is hollow and provided with a water inlet and a water outlet, wherein the water inlet of the shell (371) is connected to the clean water tank (11), and the water outlet is connected to the clean water pipe (33); and a rotor (372) disposed in the housing (371); and The power unit includes: A pedal (373), a first end of which is hinged to the clean water tank (11) and a second end of which is freely extending; a scroll torsion spring, which is arranged at the hinge center of the pedal (373), the two ends of the scroll torsion spring being respectively connected to the pedal (373) and the clean water tank (11), and in a natural state, the scroll torsion spring applies elastic force to the pedal (373) so that the pedal (373) has a tendency to rotate in the opposite direction; and A conversion mechanism, whose power input end is drivingly connected to the power output shaft of the pedal (373), and whose power output end is drivingly connected to the power input shaft of the rotor (372), wherein the conversion mechanism is used to convert the power transmitted from the pedal (373) into power in a positive direction, and transmit it to the power input shaft of the rotor (372), so as to drive the rotor (372) to rotate in the positive direction.

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