Spray gun assembly and pedestal pan

Abstract

The invention provides a spray gun assembly and a pedestal pan, the spray gun assembly comprises a fixed frame, a movable frame, a spray gun, a motor unit, a first transmission mechanism, a second transmission mechanism, a first clutch mechanism and a second clutch mechanism, when the first clutch mechanism and the first transmission mechanism are in mutual transmission, the motor unit can drive the spray gun to do first motion relative to the movable frame; when the second clutch mechanism and the second transmission mechanism are in mutual transmission, the motor unit can drive the movable frame and the spray gun to synchronously do second movement relative to the fixed frame, and the movement axis of the first movement intersects with the movement axis of the second movement. According to the spray gun assembly, two kinds of movement of the spray gun are achieved through one motor, the number of motors needed by the spray gun assembly is small, and the cost of the spray gun assembly and the pedestal pan is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of toilets, and in particular to a spray gun assembly and a toilet. Background Art

[0002] Smart toilets usually have functions such as buttocks washing and women washing. Smart toilets clean the user's body through the water flow sprayed from their spray guns. The spray guns of some smart toilets can perform two different reciprocating motions. For example, the spray gun can move forward and backward relative to the toilet body, so that the spray gun can be extended and retracted; and the spray gun can also move left and right, thereby increasing the cleaning area of ​​the spray gun's water flow.

[0003] In the prior art, in order to enable the spray gun to perform two different movements, the spray gun usually needs two motors to drive, and the number of motors is relatively large. The large number of motors will lead to a high cost of the toilet. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a spray gun assembly, which realizes two different movements through one motor, and the spray gun assembly can reduce the number of motors.

[0005] The present invention also provides a toilet bowl comprising the spray gun assembly.

[0006] According to the first aspect of the present invention, the spray gun assembly comprises: a fixed frame; a movable frame, the movable frame is movably connected to the fixed frame; a spray gun, the spray gun is movably connected to the movable frame; a motor unit, mounted on the movable frame; a first transmission mechanism, the first transmission mechanism is mounted on the movable frame, the first transmission mechanism is connected to the spray gun; a second transmission mechanism, a part of the second transmission mechanism is mounted on the movable frame, and the other part of the second transmission mechanism is mounted on the fixed frame; a first clutch mechanism, the first clutch mechanism is mounted on the movable frame and connected to the motor unit, when the first clutch mechanism and the first transmission mechanism transmit to each other, the motor unit can drive the spray gun to make a first movement relative to the movable frame; a second clutch mechanism, the second clutch mechanism is mounted on the movable frame and connected to the motor unit, when the second clutch mechanism and the second transmission mechanism transmit to each other, the motor unit can drive the movable frame and the spray gun to synchronously make a second movement relative to the fixed frame, and the movement axis of the first movement and the movement axis of the second movement intersect.

[0007] The spray gun assembly according to the first aspect of the present invention has at least the following beneficial effects: for the spray gun assembly of the present invention, the driving object of the motor unit can be changed by switching the states of the first clutch mechanism and the second clutch mechanism. The same motor unit can drive the spray gun to perform the first movement through the first transmission mechanism, and can also drive the spray gun to perform the second movement through the second transmission mechanism. In this way, two different movements of the spray gun can be achieved through one motor unit, and the number of motor units required for the spray gun assembly is small, which is conducive to reducing the number of motor units, thereby helping to reduce the cost of the spray gun assembly and the toilet.

[0008] According to some embodiments of the present invention, the motor unit includes a rotatable motor shaft, which can rotate along a first reference direction to enable the first clutch mechanism and the first transmission mechanism to transmit to each other, and to disconnect the transmission between the second clutch mechanism and the second transmission mechanism; the motor shaft can rotate along a second reference direction to enable the second clutch mechanism and the second transmission mechanism to transmit to each other, and to disconnect the transmission between the first clutch mechanism and the first transmission mechanism, and the first reference direction and the second reference direction are opposite.

[0009] According to some embodiments of the present invention, the motor unit also includes an output gear, which is installed on the motor shaft, and the first transmission mechanism includes a first input wheel that rotates in one direction, and when the first input wheel rotates relative to the movable frame, the spray gun makes a first movement relative to the movable frame; the first clutch mechanism includes: a first gear, which is meshed with the output gear; a first ratchet, which is fixed to the first gear and coaxially arranged, and the first ratchet includes a plurality of first ratchet teeth, and the first ratchet is provided with the first ratchet teeth at one end of its own axial direction; a second ratchet, which is fixed to the first input wheel and coaxially arranged, and the second ratchet includes a plurality of second ratchet teeth, and the second The ratchet is provided with a second ratchet tooth at one end in its own axial direction; a first elastic member, the movable frame and the first gear are all connected to the first elastic member, and the elastic force of the first elastic member is used to keep the first ratchet and the second ratchet engaged, and to restore the first ratchet and the second ratchet to mesh; when the motor shaft rotates along the first reference direction, the first ratchet and the second ratchet remain engaged, and the first gear, the first ratchet, the second ratchet and the first input wheel rotate synchronously; when the motor shaft rotates along the second reference direction, the first ratchet both rotates and reciprocates along its own axial direction, the first ratchet and the second ratchet periodically disengage and restore meshing, and the second ratchet and the first input wheel are stationary.

[0010] According to some embodiments of the present invention, the first input wheel is a ratchet wheel, and the first transmission mechanism further includes a first pawl, which is movably mounted on the movable frame and connected to the first input wheel to enable the first input wheel to rotate unidirectionally.

[0011] According to some embodiments of the present invention, the spray gun is slidably connected to the movable frame, the first movement is a linear movement, and the first transmission mechanism further includes: a first connecting rod, including a first end and a second end, the first end is rotatably connected to the first input wheel, and the first end is spaced apart from the rotation axis of the first input wheel; a second connecting rod, including a third end and a fourth end, the third end is rotatably connected to the second end, and the second connecting rod is slidably connected to the movable frame; a connecting gear, the connecting gear is rotatably mounted on the fourth end; a first rack, fixed to the movable frame, the first rack meshing with the connecting gear; a second rack, fixed to the spray gun, the first rack and the second rack are arranged opposite to each other, the extension direction of the first rack is the same as the extension direction of the second rack, and the second rack meshes with the connecting gear.

[0012] According to some embodiments of the present invention, the spray gun is slidably connected to the movable frame, the first movement is a linear movement, the first transmission mechanism also includes a connecting rod, the connecting rod includes a first end and a second end, the first end is rotatably connected to the first input wheel, the first end is spaced apart from the rotation axis of the first input wheel, and the second end is rotatably connected to the spray gun.

[0013] According to some embodiments of the present invention, the motor unit includes an output gear, which is mounted on the motor shaft; the second transmission mechanism includes a second input wheel that rotates in one direction, and when the second input wheel rotates relative to the movable frame, the spray gun performs the second movement; the second clutch mechanism includes: a second gear, which is mounted on the movable frame, and the second gear is meshed with the output gear; a third ratchet, the second gear and the third ratchet are fixed to each other and coaxially arranged, the third ratchet includes a plurality of third ratchet teeth, and the third ratchet is provided with the third ratchet teeth at one end of its own axial direction; a fourth ratchet, the fourth ratchet is fixed to each other and coaxially arranged with the second input wheel, the fourth ratchet includes a plurality of fourth ratchet teeth, the fourth The ratchet is provided with the fourth ratchet tooth at one end in its own axial direction; a second elastic member, the movable frame and the second gear are all connected to the second elastic member, and the elastic force of the second elastic member is used to keep the third ratchet and the fourth ratchet engaged, and to restore the third ratchet and the fourth ratchet to engage; when the motor shaft rotates along the second reference direction, the third ratchet and the fourth ratchet remain engaged with each other, and the second gear, the third ratchet, the fourth ratchet and the second input wheel rotate synchronously; when the motor shaft rotates along the first reference direction, the third ratchet both rotates and reciprocates along its own axial direction, the third ratchet and the fourth ratchet periodically disengage and engage with each other, and the fourth ratchet and the second input wheel are stationary.

[0014] According to some embodiments of the present invention, the second input wheel is a ratchet wheel, and the second transmission mechanism further includes a second pawl, which is movably mounted on the movable frame and connected to the second input wheel to enable the second input wheel to rotate unidirectionally.

[0015] According to some embodiments of the present invention, the movable frame is rotatably connected to the fixed frame, the second movement is swinging, the fixed frame is provided with a straight slide groove, and the second transmission mechanism further includes: a first bevel gear, the first bevel gear and the second input wheel are fixed to each other and coaxially arranged; a second bevel gear, the first bevel gear and the second bevel gear are both installed on the movable frame, and the second bevel gear is meshed with the first bevel gear; a slide rod, the slide rod is slidably arranged in the slide groove, the slide rod and the second bevel gear are fixed to each other, and the central axis of the slide rod is parallel to the central axis of the second bevel gear.

[0016] A toilet according to an embodiment of the second aspect of the present invention comprises the spray gun assembly described in the embodiment of the first aspect.

[0017] The toilet according to the second embodiment of the present invention has at least the following beneficial effects: since the spray gun assembly realizes two movements of the spray gun through only one motor unit, the cost of the toilet is relatively low.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of a spray gun assembly according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the spray gun assembly shown in another perspective; Figure 3 for Figure 1 An exploded view of the spray gun assembly is shown; Figure 4 It is a side view of the spray gun assembly when the spray gun is in the extended state (a part of the movable frame is omitted); Figure 5 is a cross-sectional view of the spray gun assembly when the spray gun is in an extended state; Figure 6 It is a side view of the spray gun assembly when the spray gun is in the retracted state (a part of the movable frame is omitted); Figure 7 is a schematic diagram of a second transmission mechanism and a fixing frame; Figure 8 A bottom view of the spray gun during the second movement; Fig. 9 is a schematic diagram of a first clutch mechanism; Fig.10 is a schematic diagram of the first clutch mechanism and the second clutch mechanism when the motor rotates along the first reference direction; Fig.11 It is a schematic diagram of the first clutch mechanism and the second clutch mechanism when the motor rotates along the second reference direction.

[0020] Figure numerals: 100-spray gun assembly, 101-movable frame, 102-fixed frame, 103-spray gun, 104-water outlet, 105-motor unit, 106-output gear, 107-first clutch mechanism, 108-second clutch mechanism, 109-first transmission mechanism, 110-second transmission mechanism, 111-second rack, 112-first shell, 113-second shell, 114-third shell, 115-pin shaft, 116-mounting hole, 117-first connecting rod, 118-second connecting rod, 119-connecting gear, 120-first rack, 121-first input wheel, 122-first pawl, 123-third elastic member, 124-fourth elastic member, 125-second pawl, 126-first bevel gear , 127-second input wheel, 128-fourth ratchet, 129-second ratchet, 130-motor housing, 131-motor shaft, 132-first ratchet, 133-first gear, 134-first elastic member, 135-first mounting groove, 136-third ratchet, 137-second gear, 138-second elastic member, 139-second mounting groove, 140-second bevel gear, 141-slide rod, 142-axis hole, 143-slide groove, 145-first guide groove, 146-first axis, 147-second axis, 148-first ratchet, 149-second ratchet, 150-first straight surface, 151-first inclined surface, 152-second straight surface, 153-second inclined surface, 154-third ratchet, 155-fourth ratchet. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Figure 1 and Figure 2 A spray gun assembly 100 according to an embodiment of the present invention is shown. The spray gun assembly 100 includes a fixed frame 102 , a movable frame 101 , a spray gun 103 , a motor unit 105 , a first transmission mechanism 109 , a first clutch mechanism 107 , and a second clutch mechanism 108 .

[0026] Figure 3 FIG. 1 is an exploded view of the spray gun assembly 100. In the present embodiment, the movable frame 101 includes a first shell 112, a second shell 113 and a third shell 114, and the above three shells are connected by screws. The main parts of the first clutch mechanism 107 and the second clutch mechanism 108 are located between the third shell 114 and the second shell 113, and the main parts of the first transmission mechanism 109 and the second transmission mechanism 110 are located between the first shell 112 and the second shell 113. In other embodiments, the number of movable frames 101 can be appropriately increased or decreased, as long as the movable frame 101 can provide sufficient installation positions, which is not described in detail here. The movable frame 101 is movably connected to the fixed frame 102, and the movable frame 101 can move relative to the fixed frame 102. The spray gun assembly 100 of the present invention can be used in a toilet, the fixed frame 102 can be fixed to the toilet body, and the movable frame 101 can move relative to the toilet. For example, Figure 8 As shown, in this embodiment, the movable frame 101 can swing relative to the fixed frame 102.

[0027] The spray gun 103 is movably connected to the movable frame 101, and the spray gun 103 can move relative to the movable frame 101. Figure 4 and Figure 6 As shown, in this embodiment, the spray gun 103 can move linearly relative to the movable frame 101. Figure 1 As shown, the spray gun 103 is provided with a water outlet 104, which is arranged upward, and water for cleaning the user's body can be sprayed out from the water outlet 104. The spray gun 103 is also provided with a water inlet, which is not shown in the figure, and the water inlet and the water outlet 104 can be respectively arranged at both ends of the spray gun 103. For example, the water outlet 104 is arranged at the front end of the spray gun 103, and the water inlet is arranged at the rear end of the spray gun 103, and the water inlet is connected to a water supply pipe.

[0028] like Figure 2As shown, the first transmission mechanism 109 is installed on the movable frame 101, and the first transmission mechanism 109 is connected to the spray gun 103. The motor unit 105 and the first clutch mechanism 107 are both installed on the movable frame 101, and the first clutch mechanism 107 is connected to the motor unit 105. When the first clutch mechanism 107 and the first transmission mechanism 109 transmit power to each other, the power output by the motor unit 105 can be transmitted to the first clutch mechanism 107, the first transmission mechanism 109 and the spray gun 103 in sequence, and the motor unit 105 drives the spray gun 103 to make a first movement relative to the movable frame 101. The first movement of the spray gun 103 can be a linear movement of the spray gun 103 relative to the movable frame 101 (such as Figure 4 and Figure 6 as shown).

[0029] like Figure 2 As shown, a part of the second transmission mechanism 110 is installed on the movable frame 101, and another part of the second transmission mechanism 110 is installed on the fixed frame 102. The second clutch mechanism 108 is installed on the movable frame 101, and the second clutch mechanism 108 is connected to the motor unit 105. When the second clutch mechanism 108 and the second transmission mechanism 110 transmit power to each other, the power output by the motor unit 105 can be transmitted to the second clutch mechanism 108 and the second transmission mechanism 110 in sequence, and the motor unit 105 drives the movable frame 101 and the spray gun 103 to synchronously perform a second movement relative to the fixed frame 102. The second movement of the spray gun 103 and the movable frame 101 can be that the spray gun 103 and the movable frame 101 swing synchronously relative to the fixed frame 102 (such as Figure 8 as shown).

[0030] The motion axis of the first motion intersects with the motion axis of the second motion. The intersection of the two motion axes means that the two motion axes are not parallel and do not overlap, that is, the angle between the two motion axes can be an acute angle, an obtuse angle or a right angle. For example, Figure 6 As shown, when the spray gun 103 performs the first movement, the spray gun 103 is slidably arranged in the first guide groove 145 of the movable frame 101. The first guide groove 145 and the spray gun 103 are both straight. The center line of the first guide groove 145 is the first axis 146. The spray gun 103 can perform linear motion along the first axis 146. The first axis 146 is the motion axis of the first movement. When the spray gun 103 performs the second movement, the spray gun 103 swings around the second axis 147. The second axis 147 is the motion axis of the second movement. The angle between the first axis 146 and the second axis 147 is an acute angle, thereby satisfying the condition that the motion axis of the first movement and the motion axis of the second movement intersect. Of course, in other embodiments, the angle between the first axis 146 and the second axis 147 can also be a right angle or an obtuse angle.

[0031] In this embodiment, the first movement is used to extend and retract the spray gun 103 relative to the movable frame 101. After the spray gun 103 is extended, the water outlet 104 of the spray gun 103 discharges water and rinses the user's body; after the rinsing is completed, the spray gun 103 is retracted. The second movement is used to expand the rinsing area of ​​the water flow. During the rinsing process, as the spray gun 103 swings, the end of the water flow sprayed from the water outlet 104 will also move accordingly to form a fan-shaped rinsing area. It should be noted that in other embodiments not shown in the figure, the first movement and the second movement can also be set as linear movement. The second movement set as linear movement can also expand the rinsing area of ​​the water flow. At this time, the rinsing area of ​​the water flow is roughly rectangular.

[0032] For the spray gun assembly 100 of the present invention, the driving object of the motor unit 105 can be changed by switching the states of the first clutch mechanism 107 and the second clutch mechanism 108. The same motor unit 105 can drive the spray gun 103 to perform a first movement through the first transmission mechanism 109, and can also drive the spray gun 103 to perform a second movement through the second transmission mechanism 110. In this way, two different movements of the spray gun 103 can be achieved through one motor unit 105, and the number of motor units 105 required for the spray gun assembly 100 is small, which is conducive to reducing the number of motor units 105, thereby helping to reduce the cost of the spray gun assembly 100 and the toilet.

[0033] In some embodiments, the motor unit 105 includes a rotatable motor shaft 131. The motor shaft 131 can rotate along a first reference direction, so that the first clutch mechanism 107 and the first transmission mechanism 109 transmit to each other, and the transmission between the second clutch mechanism 108 and the second transmission mechanism 110 is disconnected. The motor shaft 131 can also rotate along a second reference direction, so that the second clutch mechanism 108 and the second transmission mechanism 110 transmit to each other, and the transmission between the first clutch mechanism 107 and the first transmission mechanism 109 is disconnected. The first reference direction and the second reference direction are opposite, for example, the first reference direction is counterclockwise, and the second reference direction is clockwise.

[0034] In the above arrangement, when the motor shaft 131 rotates forward, the spray gun 103 performs a first movement; when the motor shaft 131 rotates reversely, the spray gun 103 performs a second movement. By controlling the rotation direction of the motor shaft 131, it is possible to automatically control whether the first clutch mechanism 107 and the first transmission mechanism 109 are mutually transmitted, and whether the second clutch mechanism 108 and the second transmission mechanism 110 are mutually transmitted, thereby controlling the movement mode of the spray gun 103. The above control method does not require complex sensors and controllers, which is conducive to reducing the control difficulty and cost of the spray gun assembly 100.

[0035] The specific structures of the motor unit 105, the first clutch mechanism 107 and the second clutch mechanism 108 are introduced below to illustrate how to achieve the above functions.

[0036] like Fig.10 As shown, in addition to the motor shaft 131, the motor unit 105 also includes a motor housing 130 and an output gear 106. The motor housing 130 is fixed to the movable frame 101, and the output gear 106 is installed on the motor shaft 131. The output gear 106 and the motor shaft 131 can rotate synchronously relative to the motor housing 130. The first transmission mechanism 109 includes a first input wheel 121, and the first input wheel 121 can only rotate in one direction relative to the movable frame 101. When the first input wheel 121 rotates relative to the movable frame 101, the spray gun 103 performs a first movement relative to the movable frame 101. The specific structure and working principle of the first transmission mechanism 109 will be described in detail below.

[0037] like Fig.10 As shown, the first clutch mechanism 107 includes a first gear 133, a first ratchet 132, a second ratchet 129 and a first elastic member 134. The first gear 133 is meshed with the output gear 106, the first ratchet 132 and the first gear 133 are fixed to each other, and the first ratchet 132 and the first gear 133 are coaxially arranged. The first ratchet 132 and the first gear 133 can be integrally formed (such as Fig.10 The first ratchet 132 includes a plurality of first ratchet teeth 148, and the first ratchet 132 is provided with a first ratchet tooth 148 at one end in its axial direction. The second ratchet 129 and the first input wheel 121 are fixed to each other and are coaxially arranged. The second ratchet 129 and the first input wheel 121 can be integrally formed (as shown in FIG. Fig.10 As shown in the figure, the first and second ratchet wheels 129 may be fixed to each other in a detachable manner. The second ratchet wheel 129 includes a plurality of second ratchet teeth 149, and the second ratchet wheel 129 is provided with a second ratchet tooth 149 at one end in its axial direction. The movable frame 101 and the first gear 133 are both connected to the first elastic member 134. The elastic force of the first elastic member 134 is used to keep the first ratchet wheel 132 and the second ratchet wheel 129 meshing, and to restore the first ratchet wheel 132 and the second ratchet wheel 129 to mesh. Figure 3 As shown, the third housing 114 is provided with a first mounting groove 135, and the first elastic member 134 is accommodated in the first mounting groove 135. One end of the first elastic member 134 abuts against the wall surface of the first mounting groove 135, and the other end of the first elastic member 134 abuts against the first gear 133.

[0038] The shapes of the first ratchet teeth 148 and the second ratchet teeth 149 are as follows: Fig. 9As shown. The two side surfaces of the first ratchet tooth 148 are respectively a first straight surface 150 and a first inclined surface 151, the normal of the first straight surface 150 is perpendicular to the central axis of the first ratchet 132, and the normal of the first straight surface 150 and the central axis of the first ratchet 132 do not intersect. For the same first ratchet tooth 148, the angle between the outer normal of its first inclined surface 151 and the outer normal of the first straight surface 150 is an obtuse angle. Similarly, the second ratchet tooth 149 includes a second straight surface 152 and a second inclined surface 153, the normal of the second straight surface 152 is perpendicular to the central axis of the second ratchet 129, and the normal of the second straight surface 152 and the central axis of the second ratchet 129 do not intersect. The angle between the outer normal of the second inclined surface 153 and the outer normal of the second straight surface 152 is an obtuse angle.

[0039] If the tooth groove formed by two adjacent first ratchet teeth 148 is called the first tooth groove, and the tooth groove formed by two adjacent second ratchet teeth 149 is called the second tooth groove, then the mutual engagement of the first ratchet 132 and the second ratchet 129 means that: a second ratchet tooth 149 is provided in each first tooth groove, a first ratchet tooth 148 is provided in each second tooth groove, and the first straight surface 150 and the second straight surface 152 are arranged opposite to each other, and the first inclined surface 151 and the second inclined surface 153 are arranged opposite to each other.

[0040] Fig.10 1 shows the state of the first clutch mechanism 107 when the motor shaft 131 rotates along the first reference direction. Fig.11 FIG. 1 shows the state of the second clutch mechanism 108 when the motor shaft 131 rotates along the second reference direction. Fig.10 and Fig.11 In the description, the clockwise direction and the counterclockwise direction are based on the perspective of observing from top to bottom. It should be noted that, in order to facilitate the description of the first clutch mechanism 107 and the second clutch mechanism 108, Figures 9 to 11 The marked directions do not correspond to the directions of other drawings. If the directions of the drawings need to be unified, then Figures 9 to 11 The marked up-down direction corresponds to the left-right direction in the other drawings.

[0041] like Fig.10 As shown, when the motor shaft 131 rotates in the counterclockwise direction (first reference direction), the first gear 133 and the first ratchet 132 rotate in the clockwise direction accordingly. During the clockwise rotation of the first ratchet 132, the first straight surface 150 and the second straight surface 152 are pressed against each other, the first ratchet 132 does not move axially, the first ratchet 132 and the second ratchet 129 remain engaged, and the first ratchet 132 pushes the second ratchet 129 to rotate, so that the first gear 133, the first ratchet 132, the second ratchet 129 and the first input wheel 121 rotate synchronously in the clockwise direction.

[0042] like Fig.11As shown, when the motor shaft 131 rotates in the clockwise direction (the second reference direction), the first gear 133 and the first ratchet 132 rotate in the counterclockwise direction accordingly. When the first ratchet 132 just starts to rotate counterclockwise, the first inclined surface 151 fits with the second inclined surface 153, but since the first input wheel 121 can only rotate in the clockwise direction in one direction, and the first input wheel 121 and the second ratchet 129 are fixed to each other, the first ratchet 132 cannot push the second ratchet 129 to rotate counterclockwise. In addition, the second ratchet 129 itself is fixed in the axial direction, and the second ratchet 129 does not move relative to the movable frame 101 in its axial direction. The force applied by the second inclined surface 153 to the first inclined surface 151 has a downward component, which will push the first ratchet 132 to move downward and gradually move the first ratchet 132 away from the second ratchet 129, while the first elastic member 134 is gradually compressed. As the first ratchet 132 gradually moves away from the second ratchet 129, the first ratchet 132 and the second ratchet 129 are disengaged. Subsequently, as the first ratchet 132 continues to rotate, the first ratchet teeth 148 will align with the second tooth grooves again, and under the elastic force of the first elastic member 134, the first ratchet 132 moves axially and resets (moves upward), and resumes the meshing with the second ratchet 129. During the rotation of the first ratchet 132, the above process is repeated continuously.

[0043] In this way, when the motor shaft 131 rotates in the clockwise direction (the second reference direction), the first ratchet 132 will not only rotate but also reciprocate along its own axial direction, and the first ratchet 132 and the second ratchet 129 will periodically disengage and resume engagement. However, during the clockwise rotation of the motor shaft 131, regardless of whether the first ratchet 132 and the second ratchet 129 are engaged, the second ratchet 129 and the first input wheel 121 are stationary, and the spray gun 103 will not make the first movement. The axial movement of the first ratchet 132 is mainly to prevent the stationary second ratchet 129 from jamming the first ratchet 132, so that the first ratchet 132, the output gear 106 and the motor shaft 131 can still rotate smoothly, thereby ensuring that the transmission can be achieved between the motor shaft 131, the second clutch mechanism 108 and the second transmission mechanism 110.

[0044] As mentioned above, the first input wheel 121 can only rotate in one direction. Figure 4As shown, the first input wheel 121 can be a ratchet wheel. Accordingly, the first transmission mechanism 109 further includes a first pawl 122, which is movably mounted on the movable frame 101 and connected to the first input wheel 121, so that the first input wheel 121 can only rotate in one direction. More specifically, the top end of the first pawl 122 is rotatably connected to the movable frame 101, and the bottom end of the first pawl 122 is used to connect to the ratchet wheel. The first transmission mechanism 109 further includes a third elastic member 123, and the two ends of the third elastic member 123 are respectively connected to the movable frame 101 and the first pawl 122. The elastic force of the third elastic member 123 is used to make the first pawl 122 stuck between the two ratchet teeth of the first input wheel 121. When the first input wheel 121 rotates clockwise, the ratchet teeth of the first input wheel 121 can push the first pawl 122 away, and the first pawl 122 does not hinder the clockwise rotation of the first input wheel 121. When the first input wheel 121 rotates counterclockwise, the ratchet teeth of the first input wheel 121 cannot push open the first pawl 122 , and the first pawl 122 prevents the first input wheel 121 from rotating counterclockwise.

[0045] In other embodiments not shown in the figure, the connection between the bottom end of the first pawl 122 and the first input wheel 121 can also be maintained by magnetic force or the gravity of the first pawl 122. In addition, in other embodiments not shown in the figure, the unidirectional rotation function can be achieved without using a pawl. As an alternative, the first input wheel 121 can be connected to the movable frame 101 through a one-way bearing, and accordingly, the first input wheel 121 does not need to be set as a ratchet.

[0046] The structure and principle of the second clutch mechanism 108 are similar to those of the first clutch mechanism 107. Fig.10 As shown, the second transmission mechanism 110 includes a second input wheel 127 that rotates in one direction. When the second input wheel 127 rotates relative to the movable frame 101, the spray gun 103 performs a second movement. The second clutch mechanism 108 includes a second gear 137, a third ratchet 136, a fourth ratchet 128, and a second elastic member 138. The second gear 137 is mounted on the movable frame 101, and the second gear 137 is meshed with the output gear 106. The second gear 137 and the third ratchet 136 are fixed to each other and coaxially arranged. The third ratchet 136 includes a plurality of third ratchet teeth 154. The third ratchet 136 is provided with the third ratchet teeth 154 at one end of its own axial direction. The fourth ratchet 128 and the second input wheel 127 are fixed to each other and coaxially arranged. The fourth ratchet 128 includes a plurality of fourth ratchet teeth 155. The fourth ratchet 128 is provided with a fourth ratchet tooth 155 at one end of its own axial direction. The shapes of the third ratchet teeth 154 and the fourth ratchet teeth 155 can refer to the shapes of the first ratchet teeth 148 and the second ratchet teeth 149 described above, and will not be described in detail here. The movable frame 101 and the second gear 137 are both connected to the second elastic member 138. Figure 3As shown, the third housing 114 is provided with a second mounting groove 139, and the second elastic member 138 is accommodated in the second mounting groove 139. One end of the second elastic member 138 abuts against the wall surface of the second mounting groove 139, and the other end of the second elastic member 138 abuts against the second gear 137. The elastic force of the second elastic member 138 is used to keep the third ratchet 136 and the fourth ratchet 128 engaged, and to restore the third ratchet 136 and the fourth ratchet 128 to engage. The fourth ratchet 128 is also fixed relative to the movable frame 101 in its own axial direction, and the fourth ratchet 128 will not move along its own axial direction.

[0047] like Fig.11 As shown, when the motor shaft 131 rotates along the second reference direction (clockwise), the third ratchet 136 and the fourth ratchet 128 remain meshed with each other, and the second gear 137, the third ratchet 136, the fourth ratchet 128 and the second input wheel 127 rotate synchronously (rotate synchronously in the counterclockwise direction). Accordingly, the spray gun 103 will perform the second movement at this time.

[0048] like Fig.10 As shown, when the motor shaft 131 rotates along the first reference direction (counterclockwise), based on the matching relationship between the third ratchet 136 and the fourth ratchet 128, the third ratchet 136 not only rotates but also reciprocates along its own axial direction, the third ratchet 136 and the fourth ratchet 128 periodically disengage and mesh with each other, and the fourth ratchet 128 and the second input wheel 127 are stationary. At this time, the spray gun 103 does not make the second movement.

[0049] The axial movement of the third ratchet 136 is mainly to prevent the stationary fourth ratchet 128 from jamming the third ratchet 136, so that the third ratchet 136, the output gear 106 and the motor shaft 131 can still rotate smoothly. At this time, since the motor shaft 131 can still be pressed, the motor shaft 131, the first clutch mechanism 107 and the first transmission mechanism 109 can achieve transmission.

[0050] like Figure 5 As shown, the second input wheel 127 can also be set as a ratchet, and the second transmission mechanism 110 also includes a second pawl 125, which is movably mounted on the movable frame 101, and the second pawl 125 is connected to the second input wheel 127 so that the second input wheel 127 rotates in one direction. The two ends of the fourth elastic member 124 are respectively connected to the movable frame 101 and the second pawl 125, and the elastic force of the fourth elastic member 124 is used to make the second pawl 125 clamped between the two ratchet teeth of the second input wheel 127. In other embodiments not shown in the figure, the unidirectional rotation function can also be achieved without using a pawl; as an alternative, the second input wheel 127 can be connected to the movable frame 101 through a one-way bearing, and the second input wheel 127 does not need to be set as a ratchet.

[0051] The structures and principles of the first transmission mechanism 109 and the second transmission mechanism 110 are described below.

[0052] like Figure 4 As shown, the spray gun 103 is slidably connected to the movable frame 101, and the spray gun 103 is slidably arranged in the first guide groove 145 of the movable frame 101. The first guide groove 145 is straight, so the first movement is a linear movement. The first transmission mechanism 109 may include a first connecting rod 117, a second connecting rod 118, a connecting gear 119, a first rack 120 and a second rack 111. The first connecting rod 117 includes a first end and a second end, and the second connecting rod 118 includes a third end and a fourth end. Figure 4 In the embodiment, the first end is the rear end of the first connecting rod 117, the second end is the front end of the first connecting rod 117, the third end is the rear end of the second connecting rod 118, and the fourth end is the front end of the second connecting rod 118. The first end is rotatably connected to the first input wheel 121, and the first end is spaced apart from the rotation axis of the first input wheel 121. The third end is rotatably connected to the second end, and the connecting gear 119 is rotatably mounted on the fourth end. The second connecting rod 118 is slidably connected to the movable frame 101, and the second connecting rod 118 can slide along its own length direction, and the second connecting rod 118 is parallel to the spray gun 103. For example, the movable frame 101 is further provided with a second guide groove (not shown), the second guide groove is parallel to the first guide groove 145, and the second connecting rod 118 is arranged in the second guide groove. The first rack 120 and the second rack 111 are both meshed with the connecting gear 119. The first rack 120 is fixed to the movable frame 101, the second rack 111 is fixed to the spray gun 103, the first rack 120 and the second rack 111 are arranged opposite to each other, and the extension direction of the first rack 120 is the same as the extension direction of the second rack 111. When the first input wheel 121 rotates, the spray gun 103 can perform a first movement, and the spray gun 103 can be extended forward and retracted backward.

[0053] As mentioned above, the first input wheel 121 can only rotate in one direction. Figure 6 Rotate to the angle shown Figure 4 During the process of moving from the first input wheel 121 to the second input wheel 122, the second connecting rod 118 pushes the connecting gear 119 to move forward. When the connecting gear 119 moves forward, it also rotates relative to the second connecting rod 118, thereby driving the second rack 111 and the spray gun 103 to move forward. Figure 4 Rotate to the angle shown Figure 6 During the process of the angle shown, the second connecting rod 118 pushes the gear to move backwards, and the gear also rotates relative to the second connecting rod 118 when moving backwards, thereby driving the second rack 111 and the spray gun 103 to move backwards.

[0054] The first transmission mechanism 109 enables the travel of the spray gun 103 to be twice the moving travel of the connecting gear 119 . The first transmission mechanism 109 is beneficial for increasing the moving travel of the spray gun 103 and is suitable for a longer spray gun 103 .

[0055] In other embodiments not shown in the figure, in order to reduce the number of parts and costs of the first transmission mechanism 109, the first transmission mechanism 109 may also include only one connecting rod, the first end of which is rotatably connected to the first input wheel 121, the first end is spaced apart from the rotation axis of the first input wheel 121, and the second end is rotatably connected to the spray gun 103. This design is equivalent to Figure 4 The second connecting rod 118, the first rack 120, the second rack 111 and the connecting gear 119 are omitted, and the front end of the first connecting rod 117 is directly connected to the spray gun 103. This design can also convert the rotation of the first input wheel 121 into the linear motion of the spray gun 103.

[0056] In the case where the second motion is an oscillation, such as Figure 7 As shown, the second transmission mechanism 110 may include a first bevel gear 126, a second bevel gear 140 and a slide bar 141. The first bevel gear 126 and the second bevel gear 140 are both mounted on the movable frame 101, and the slide bar 141 is mounted on the fixed frame 102. The first bevel gear 126 and the second input wheel 127 are fixed to each other and are coaxially arranged. The second bevel gear 140 is meshed with the first bevel gear 126, and the slide bar 141 and the second bevel gear 140 are fixed to each other. The slide bar 141 is eccentrically arranged relative to the second bevel gear 140, that is, the central axis of the slide bar 141 is parallel to the central axis of the second bevel gear 140. The fixed frame 102 is provided with a straight slide groove 143, and the slide bar 141 is slidably arranged in the slide groove 143.

[0057] The movable frame 101 is rotatably connected to the fixed frame 102. Figure 3 As shown, the first shell 112 of the movable frame 101 is provided with a pin shaft portion 115 and a mounting hole 116, and the fixed frame 102 is provided with an axial hole 142. The pin shaft portion 115 is rotatably inserted into the axial hole 142. The central axis of the pin shaft portion 115 or the axial hole 142 is the second axis 147. The second bevel gear 140 is installed in the mounting hole 116.

[0058] When the second input wheel 127 rotates, the first bevel gear 126 and the second bevel gear 140 also rotate. In addition, since the second input wheel 127 can only rotate in one direction, the first bevel gear 126 and the second bevel gear 140 can also only rotate in one direction. Figure 8The figure shows the swinging mode of the spray gun 103 and the movable frame 101 during the counterclockwise rotation of the second bevel gear 140. As the second bevel gear 140 rotates, the slide bar 141 slides along the slide slot 143, and the distance between the center of the second bevel gear 140 and the slide slot 143 changes, so that the movable frame 101 swings relative to the fixed frame 102.

[0059] In other embodiments not shown, if the second motion is a linear motion, the slide bar 141 can be replaced by a third gear and a third rack (not shown). For example, the third gear and the second bevel gear 140 are fixed to each other and coaxially arranged, the third rack extends in the left-right direction, and the third rack is fixed to the fixed frame 102. When the second input wheel 127 rotates, the third gear rotates relative to the third rack through the transmission of the first bevel gear 126 and the second bevel gear 140, so that the movable frame 101 moves left and right relative to the fixed frame 102.

[0060] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. Spray gun assembly, characterized in that, include: Fixed frame; A movable frame, the movable frame is movably connected to the fixed frame; A spray gun, the spray gun being movably connected to the movable frame; A motor unit, mounted on the movable frame; a first transmission mechanism, the first transmission mechanism being mounted on the movable frame and connected to the spray gun; a second transmission mechanism, a portion of the second transmission mechanism being mounted on the movable frame, and another portion of the second transmission mechanism being mounted on the fixed frame; a first clutch mechanism, the first clutch mechanism being mounted on the movable frame and connected to the motor unit, and when the first clutch mechanism and the first transmission mechanism are mutually transmitted, the motor unit can drive the spray gun to make a first movement relative to the movable frame; A second clutch mechanism is installed on the movable frame and connected to the motor unit. When the second clutch mechanism and the second transmission mechanism transmit to each other, the motor unit can drive the movable frame and the spray gun to synchronously perform a second movement relative to the fixed frame, and the movement axis of the first movement intersects with the movement axis of the second movement.

2. The spray gun assembly according to claim 1, characterized in that The motor unit comprises a rotatable motor shaft, and the motor shaft can rotate along a first reference direction to enable the first clutch mechanism and the first transmission mechanism to transmit to each other, and to disconnect the transmission between the second clutch mechanism and the second transmission mechanism; The motor shaft can rotate along a second reference direction to enable the second clutch mechanism and the second transmission mechanism to transmit to each other, and to disconnect the transmission between the first clutch mechanism and the first transmission mechanism. The first reference direction is opposite to the second reference direction.

3. The spray gun assembly according to claim 2, characterized in that The motor unit further comprises an output gear, the output gear is mounted on the motor shaft, the first transmission mechanism comprises a first input wheel that rotates in one direction, when the first input wheel rotates relative to the movable frame, the spray gun performs a first movement relative to the movable frame; The first clutch mechanism comprises: a first gear meshing with the output gear; A first ratchet wheel, wherein the first ratchet wheel and the first gear are fixed to each other and are coaxially arranged, the first ratchet wheel comprises a plurality of first ratchet teeth, and the first ratchet wheel is provided with the first ratchet teeth at one end in its axial direction; a second ratchet wheel, wherein the second ratchet wheel is fixed to the first input wheel and is coaxially arranged, the second ratchet wheel comprises a plurality of second ratchet teeth, and the second ratchet wheel is provided with the second ratchet teeth at one end in the axial direction thereof; a first elastic member, the movable frame and the first gear are both connected to the first elastic member, and the elastic force of the first elastic member is used to keep the first ratchet wheel and the second ratchet wheel in meshing, and to restore the first ratchet wheel and the second ratchet wheel to mesh; When the motor shaft rotates along the first reference direction, the first ratchet and the second ratchet remain engaged, and the first gear, the first ratchet, the second ratchet and the first input wheel rotate synchronously; when the motor shaft rotates along the second reference direction, the first ratchet both rotates and reciprocates along its own axial direction, the first ratchet and the second ratchet periodically disengage and resume engagement, and the second ratchet and the first input wheel remain stationary.

4. The spray gun assembly according to claim 3, characterized in that The first input wheel is a ratchet wheel, and the first transmission mechanism further includes a first pawl, which is movably mounted on the movable frame, and is connected to the first input wheel to enable the first input wheel to rotate in one direction.

5. The spray gun assembly according to claim 3, characterized in that The spray gun is slidably connected to the movable frame, the first motion is a linear motion, and the first transmission mechanism further includes: A first connecting rod, comprising a first end and a second end, wherein the first end is rotatably connected to the first input wheel, and the first end is spaced apart from a rotation axis of the first input wheel; A second connecting rod, comprising a third end and a fourth end, wherein the third end is rotatably connected to the second end, and the second connecting rod is slidably connected to the movable frame; a connecting gear rotatably mounted on the fourth end; A first rack, fixed to the movable frame, the first rack meshing with the connecting gear; The second rack is fixed to the spray gun, the first rack and the second rack are arranged opposite to each other, the extension direction of the first rack is the same as the extension direction of the second rack, and the second rack is meshed with the connecting gear.

6. The spray gun assembly according to claim 3, characterized in that The spray gun is slidably connected to the movable frame, the first movement is a linear movement, the first transmission mechanism also includes a connecting rod, the connecting rod includes a first end and a second end, the first end is rotatably connected to the first input wheel, the first end is spaced apart from the rotation axis of the first input wheel, and the second end is rotatably connected to the spray gun.

7. The spray gun assembly according to claim 2, characterized in that The motor unit comprises an output gear, the output gear is mounted on the motor shaft, the second transmission mechanism comprises a second input wheel that rotates in one direction, when the second input wheel rotates relative to the movable frame, the spray gun performs the second motion; The second clutch mechanism comprises: a second gear, the second gear being mounted on the movable frame and meshing with the output gear; a third ratchet, wherein the second gear and the third ratchet are fixed to each other and are coaxially arranged, the third ratchet comprises a plurality of third ratchet teeth, and the third ratchet is provided with the third ratchet teeth at one end of the third ratchet in its axial direction; a fourth ratchet wheel, the fourth ratchet wheel being fixed to and coaxially arranged with the second input wheel, the fourth ratchet wheel comprising a plurality of fourth ratchet teeth, and the fourth ratchet wheel being provided with the fourth ratchet teeth at one end in its axial direction; a second elastic member, the movable frame and the second gear are both connected to the second elastic member, and the elastic force of the second elastic member is used to keep the third ratchet wheel and the fourth ratchet wheel in meshing, and to restore the third ratchet wheel and the fourth ratchet wheel to mesh; When the motor shaft rotates along the second reference direction, the third ratchet and the fourth ratchet remain in mesh with each other, and the second gear, the third ratchet, the fourth ratchet and the second input wheel rotate synchronously; when the motor shaft rotates along the first reference direction, the third ratchet both rotates and reciprocates along its own axial direction, the third ratchet and the fourth ratchet periodically disengage and engage with each other, and the fourth ratchet and the second input wheel are stationary.

8. The spray gun assembly according to claim 7, characterized in that The second input wheel is a ratchet wheel, and the second transmission mechanism further includes a second pawl, which is movably mounted on the movable frame, and the second pawl is connected to the second input wheel to enable the second input wheel to rotate in one direction.

9. The spray gun assembly according to claim 7, characterized in that The movable frame is rotatably connected to the fixed frame, the second motion is swinging, the fixed frame is provided with a straight slide slot, and the second transmission mechanism further includes: A first bevel gear, wherein the first bevel gear and the second input gear are fixed to each other and are coaxially arranged; A second bevel gear, wherein the first bevel gear and the second bevel gear are both mounted on the movable frame, and the second bevel gear is meshed with the first bevel gear; A slide rod is slidably disposed in the slide groove, the slide rod and the second bevel gear are fixed to each other, and the central axis of the slide rod and the central axis of the second bevel gear are parallel to each other.

10. A toilet, characterized in that: A spray gun assembly comprising the spray gun assembly of any one of claims 1 to 9.

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