A retractable two-stage spray gun, intelligent toilet and control method

Abstract

The present invention discloses a retractable two-stage spray gun, an intelligent toilet and a control method, which relate to the field of sanitary ware. The retractable two-stage spray gun comprises a spray gun body, a spray gun arranged in the spray gun body, the spray gun comprises a spray gun outer barrel slidably arranged in the spray gun body and a spray gun inner barrel slidably arranged in the spray gun outer barrel, the spray gun body is provided with a spray gun driving mechanism for driving the spray gun outer barrel and the spray gun inner barrel to slide, and the spray gun inner barrel comprises a spray head assembly arranged at the front end and used to clean the user's to-be-cleaned part. The present invention improves the spray gun structure, increases the spray gun cleaning distance through the two-stage spray gun, and realizes the function of increasing the spray gun length when the overall structure of the spray gun is small.

Description

Technical Field

[0001] The invention relates to the field of sanitary ware, and in particular to a retractable two-stage spray gun, an intelligent toilet and a control method. Background Art

[0002] At present, there are various toilets in the market, each with its own main functions and structural designs. For example, the currently popular smart toilet has many functions: buttocks cleaning, lower body cleaning, mobile cleaning, seat ring insulation, warm air drying, automatic deodorization, silent seating, etc. People can operate through the button panel, and even use the remote control device to realize these functions. When using, just hold the remote control and press it lightly, and all functions can be easily realized.

[0003] Although smart toilets have a variety of functions, one of their most core functions is to automatically clean the user's area to be cleaned. The main module for realizing this function is a spray gun, but the spray gun structure for realizing this function in the prior art still has defects: for example, the cleaning distance is short, and it is impossible to increase the spray gun length when the overall structure of the spray gun is small. Summary of the invention

[0004] The purpose of the present invention is to provide a retractable two-stage spray gun, an intelligent toilet and a control method, aiming to solve the problem in the prior art that the cleaning distance of the spray gun is short and it is impossible to increase the length of the spray gun when the overall structure of the spray gun is small.

[0005] An embodiment of the present invention provides a retractable two-stage spray gun, which is applied to a smart toilet. The retractable two-stage spray gun includes a spray gun body and a spray gun arranged in the spray gun body. The spray gun includes a spray gun outer barrel slidably arranged in the spray gun body and a spray gun inner barrel slidably arranged in the spray gun outer barrel. The spray gun body is provided with a spray gun driving mechanism for driving the spray gun outer barrel and the spray gun inner barrel to slide. The spray gun inner barrel includes a spray head assembly arranged at the front end and used to clean the user's part to be cleaned.

[0006] An embodiment of the present invention further provides an intelligent toilet, which includes the retractable two-stage spray gun as described above.

[0007] The embodiment of the present invention further provides a control method of the telescopic two-stage spray gun as described above, which comprises:

[0008] Control the inner barrel of the spray gun to slide outward relative to the outer barrel of the spray gun first;

[0009] When the spray gun inner cylinder slides outwards to a certain position, the spray gun outer cylinder is controlled to slide outwards together with the spray gun inner cylinder relative to the spray gun body;

[0010] During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

[0011] The embodiment of the present invention further provides a control method of the telescopic two-stage spray gun as described above, which comprises:

[0012] When the spray gun outer cylinder slides outward to a certain position, the spray gun outer cylinder and the spray gun inner cylinder are controlled to slide inward relative to the spray gun body;

[0013] When the spray gun outer barrel slides inwardly to a certain position, the spray gun inner barrel is controlled to slide inwardly relative to the spray gun outer barrel;

[0014] During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

[0015] The embodiment of the present invention further provides a control method of the telescopic two-stage spray gun as described above, which comprises:

[0016] Control the inner barrel of the spray gun to slide outward relative to the outer barrel of the spray gun first;

[0017] When the spray gun inner cylinder slides outwards to a certain position, the spray gun outer cylinder is controlled to slide outwards together with the spray gun inner cylinder relative to the spray gun body;

[0018] When the spray gun outer cylinder slides outward to a certain position, the spray gun outer cylinder and the spray gun inner cylinder are controlled to slide inward relative to the spray gun body;

[0019] When the spray gun outer barrel slides inwardly to a certain position, the spray gun inner barrel is controlled to slide inwardly relative to the spray gun outer barrel;

[0020] During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

[0021] The embodiment of the present invention provides a retractable two-stage spray gun, a smart toilet and a control method, wherein the retractable two-stage spray gun includes a spray gun body, a spray gun disposed in the spray gun body, the spray gun includes a spray gun outer barrel slidably disposed in the spray gun body and a spray gun inner barrel slidably disposed in the spray gun outer barrel, the spray gun body is provided with a spray gun driving mechanism for driving the spray gun outer barrel and the spray gun inner barrel to slide, and the spray gun inner barrel includes a spray head assembly disposed at the front end and used to clean the user's to-be-cleaned area. The embodiment of the present invention improves the spray gun structure, increases the spray gun cleaning distance through the two-stage spray gun, and realizes the function of increasing the spray gun length when the overall structure of the spray gun is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of a retractable two-stage spray gun provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the exploded structure of a retractable two-stage spray gun provided in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the exploded structure of a spray gun in a retractable two-stage spray gun provided in an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the structure of a spray gun inner barrel in a telescopic two-stage spray gun provided by an embodiment of the present invention;

[0027] Figure 5 Another exploded structural schematic diagram of a retractable two-stage spray gun provided by an embodiment of the present invention;

[0028] Figure 6 A schematic cross-sectional structure diagram of a telescopic two-stage spray gun and a connecting member in cooperation with each other provided by an embodiment of the present invention;

[0029] Figure 7 A schematic cross-sectional structure diagram of a retractable two-stage spray gun in an initial state provided by an embodiment of the present invention;

[0030] Figure 8 for Figure 7 A partial enlarged view of part A;

[0031] Fig. 9 A schematic cross-sectional structure diagram of a retractable two-stage spray gun provided by an embodiment of the present invention when the inner barrel of the spray gun is sliding outward;

[0032] Fig.10 for Fig. 9 A partial enlarged view of part B;

[0033] Fig.11 A schematic cross-sectional structure diagram of a telescopic two-stage spray gun provided by an embodiment of the present invention when the inner barrel of the spray gun slides to form a locking structure with the outer barrel of the spray gun;

[0034] Fig.12 for Fig.11 A partial enlarged view of part C in the middle;

[0035] Fig.13 A schematic diagram of the structure of a retractable two-stage spray gun provided by an embodiment of the present invention when the outer barrel of the spray gun is sliding outward;

[0036] Fig.14 for Fig.13 A partial enlarged view of part D in the middle;

[0037] Fig.15 A schematic diagram of the internal structure of a retractable two-stage spray gun provided by an embodiment of the present invention;

[0038] Fig.16 A schematic cross-sectional structure diagram of a retractable two-stage spray gun provided by an embodiment of the present invention when the outer barrel of the spray gun slides outward to a desired position from another viewing angle;

[0039] Fig.17 A schematic diagram of the exploded structure of a spray gun outer barrel in a telescopic two-stage spray gun provided by an embodiment of the present invention;

[0040] Fig.18 A schematic diagram of the exploded structure of a spray gun body in a retractable two-stage spray gun provided by an embodiment of the present invention;

[0041] Fig.19 A schematic diagram of the exploded structure of a spray head in a retractable two-stage spray gun provided by an embodiment of the present invention;

[0042] Fig. 20 A schematic diagram of the structure of an intelligent toilet provided by an embodiment of the present invention;

[0043] Fig.21 This is a schematic diagram of the structure of a smart toilet after the main body shell is opened provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0046] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0047] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0048] Combination Figures 1 to 3 As shown, the telescopic two-stage spray gun provided in the embodiment of the present invention comprises a spray gun body 1, a spray gun 2 arranged in the spray gun body 1, the spray gun 2 comprises a spray gun outer barrel 3 slidably arranged in the spray gun body 1 and a spray gun inner barrel 4 slidably arranged in the spray gun outer barrel 3, and the spray gun body 1 is provided with a spray gun driving mechanism 8 for driving the spray gun outer barrel 3 and the spray gun inner barrel 4 to slide, as shown in FIG. Figure 4 As shown, the spray gun inner barrel 4 includes a spray head assembly 6 which is arranged at the front end and is used to clean the area to be cleaned by the user.

[0049] In this embodiment, the retractable two-stage spray gun, as the name implies, includes two retractable parts, specifically the spray gun outer barrel 3 and the spray gun inner barrel 4, wherein the spray gun outer barrel 3 can slide back and forth inside the spray gun body 1, thereby achieving the telescopic effect of the spray gun outer barrel 3, and the spray gun inner barrel 4 can slide back and forth inside the spray gun outer barrel 3, thereby achieving the telescopic effect of the spray gun inner barrel 4. The advantage of using a two-stage spray gun is that the retractable range of the spray gun 2 can be increased when the overall length of the spray gun 2 is limited, thereby facilitating the cleaning of the user's to-be-cleaned area. That is, the spray gun outer barrel 3 can be extended relative to the spray gun body 1, and the spray gun inner barrel 4 can be extended relative to the spray gun outer barrel 3, and then the spray head assembly 6 at the front end of the spray gun inner barrel 4 is used for cleaning. The back-and-forth sliding of the spray gun inner cylinder 4 and the spray gun outer cylinder 3 is driven by the spray gun driving mechanism 8. The specific driving methods are various. For example, the spray gun driving mechanism 8 can provide power to the spray gun inner cylinder 4 and the spray gun outer cylinder 3 respectively to control the back-and-forth sliding of the two respectively, or the spray gun driving mechanism 8 can provide power to one of them and combine the structural design to control the back-and-forth sliding of the two.

[0050] In one embodiment, if Figure 5 and Figure 6 As shown, the spray gun driving mechanism 8 is connected to a connecting piece 15 , and the spray gun driving mechanism 8 drives the connecting piece 15 to extend and retract forward and backward, and the front end of the connecting piece 15 is fixed on the spray gun inner tube 4 .

[0051] In this embodiment, the spray gun driving mechanism 8 drives the spray gun inner barrel 4 to move through the connecting member 15, that is, by driving the connecting member 15 to extend and retract forward and backward. Since one end of the connecting member 15 is fixed on the spray gun inner barrel 4, the spray gun inner barrel 4 can be driven to slide back and forth, thereby achieving the extension and retraction effect of the spray gun inner barrel 4.

[0052] In one embodiment, the spray gun driving mechanism 8 includes a spray gun driving motor 81 and a transfer gear 82, the spray gun driving motor 81 is connected to the transfer gear 82, the connecting member 15 is a flexible rack, and the transfer gear 82 is meshed with the flexible rack.

[0053] In this embodiment, the spray gun driving motor 81 can drive the connected transfer gear 82 to rotate when it is working. Since the transfer gear 82 is meshed with the flexible rack, the rotation of the transfer gear 82 can be converted into the linear motion of the flexible rack, that is, when the transfer gear 82 rotates in one direction, the flexible rack can move linearly in one direction, and when the transfer gear 82 rotates in another direction, the flexible rack can move linearly in the opposite direction. In a specific application scenario, the spray gun driving motor 81 is connected to a rotating shaft, and a connecting hole 821 is provided in the middle of the transfer gear 82. The rotating shaft is fixed in the connecting hole 821, so that the spray gun driving motor 81 drives the transfer gear 82 to rotate when it is working.

[0054] In another embodiment, the spray gun driving mechanism includes a spray gun driving motor and a rotating wheel, the spray gun driving motor is connected to the rotating wheel and drives the rotating wheel to rotate, the connecting member is a flexible steel belt, the rotating wheel is connected to the flexible steel belt and drives the flexible steel belt to reel or unreel, and the flexible steel belt can be reeled or unreeled by the rotation of the rotating wheel. During the unreeling process, the flexible steel belt will extend outward, and during the reeling process, the flexible steel belt will retract inward.

[0055] In one embodiment, the end of the outer wall of the spray gun outer barrel 3 is snap-connected with the end of the inner wall of the spray gun body 1. When the spray gun outer barrel 3 is not extended, the spray gun outer barrel 3 and the spray gun body 1 are snap-connected together, that is, in the initial state, the end of the outer wall of the spray gun outer barrel 3 is snap-connected with the end of the inner wall of the spray gun body 1, and the front end of the spray gun body 1 is provided with a gun washing port 16 (combined with the outer wall of the spray gun outer barrel 3 and the inner wall of the spray gun inner barrel 4) for cleaning. Figure 7As shown). The above embodiment is for the case where the spray gun inner cylinder 4 and the spray gun outer cylinder 3 slide outward, that is, since the spray gun inner cylinder 4 has no snap connection with the spray gun outer cylinder 3, the spray gun inner cylinder 4 first slides outward relative to the spray gun outer cylinder 3. After sliding into place, the spray gun outer cylinder 3 drives the spray gun inner cylinder 4 to slide outward relative to the spray gun body 1, so that the outer wall of the spray gun outer cylinder 3 and the spray gun inner cylinder 4 can be cleaned when sliding outward. Of course, a slot stopper 315 can be set on the spray gun outer cylinder 3, so that the spray gun inner cylinder 4 slides to the position of the slot stopper 315 and stops moving, that is, slides into place. The principle of this part can refer to the structure of the subsequent embodiments.

[0056] In one embodiment, a first outer barrel slot 311 is disposed at the end of the outer wall of the spray gun outer barrel 3, and a spray gun body buckle 17 adapted to the first outer barrel slot 311 is disposed at the end of the inner wall of the spray gun body 1, and the spray gun body buckle 17 and / or the first outer barrel slot 311 are elastic members. This part of the content will be described in detail in conjunction with the subsequent embodiments.

[0057] In one embodiment, when the spray gun inner tube 4 slides outwardly relative to the spray gun outer tube 3, the end of the outer wall of the spray gun inner tube 4 is engaged with the front end of the inner wall of the spray gun outer tube 3; the front end of the spray gun body 1 is provided with a gun washing port 16 (combined with the outer wall of the spray gun outer tube 3 and the outer wall of the spray gun inner tube 4) for cleaning Figure 7 As shown). The above embodiment is for the case where the spray gun inner cylinder 4 and the spray gun outer cylinder 3 slide inwardly, that is, the spray gun inner cylinder 4 is engaged with the spray gun outer cylinder 3 after sliding outwardly into place, so the two form a locking structure, so the spray gun outer cylinder 3 will first drive the spray gun inner cylinder 4 to slide inwardly relative to the spray gun body 1, and then the spray gun inner cylinder 4 slides inwardly relative to the spray gun outer cylinder 3, so that the outer wall of the spray gun outer cylinder 3 and the spray gun inner cylinder 4 can be cleaned when sliding inwardly. In addition, it can be arranged that the end of the spray gun outer cylinder 3 is abutted against the end of the spray gun body 1, so that when the spray gun outer cylinder 3 slides to the end of the spray gun body 1, the spray gun outer cylinder 3 can stop sliding, so that the locking structure between the spray gun inner cylinder 4 and the spray gun outer cylinder 3 is released, so that the spray gun inner cylinder 4 can slide inwardly relative to the spray gun outer cylinder 3.

[0058] In one embodiment, a spray gun inner barrel buckle 511 is disposed at the end of the outer wall of the spray gun inner barrel 4, and a second outer barrel buckle slot 312 adapted to the spray gun inner barrel buckle 511 is disposed at the front end of the inner wall of the spray gun outer barrel 3; a slot stopper 315 for resisting the spray gun inner barrel buckle 511 is disposed at the front end of the second outer barrel buckle slot. This part of the content will be described in detail in conjunction with the subsequent embodiments.

[0059] In one embodiment, the end of the outer wall of the spray gun outer barrel 3 is snap-connected with the end of the inner wall of the spray gun body 1; and when the spray gun inner barrel 4 slides outwardly relative to the spray gun outer barrel 3, the end of the outer wall of the spray gun inner barrel 4 is snap-connected with the front end of the inner wall of the spray gun outer barrel 3; the front end of the spray gun body 1 is provided with a gun washing port 16 (combined with the outer wall of the spray gun outer barrel 3 and the outer wall of the spray gun inner barrel 4) for cleaning Figure 7 As shown); the clamping force between the end of the outer wall of the spray gun outer barrel 3 and the end of the inner wall of the spray gun body 1 is smaller than the clamping force between the end of the outer wall of the spray gun inner barrel 4 and the front end of the inner wall of the spray gun outer barrel 3, and the end of the spray gun outer barrel 3 is abutted against the end of the spray gun body 1. The above embodiment is aimed at the situation where the spray gun inner barrel 4 and the spray gun outer barrel 3 slide outward and inward at the same time, that is, the spray gun inner barrel 4 first slides outward relative to the spray gun outer barrel 3, and then the spray gun outer barrel 3 drives the spray gun inner barrel 4 to slide outward relative to the spray gun body 1, so that the outer walls of the spray gun outer barrel 3 and the spray gun inner barrel 4 can be cleaned when sliding outward. And the spray gun outer barrel 3 can first drive the spray gun inner barrel 4 to slide inward relative to the spray gun body 1, and then the spray gun inner barrel 4 slides inward relative to the spray gun outer barrel 3, so that the outer walls of the spray gun outer barrel 3 and the spray gun inner barrel 4 can be cleaned when sliding inward. The subsequent embodiments of the present invention are mainly explained for the cases where both outward sliding and inward sliding are considered at the same time. Obviously, for the case where only outward sliding is considered, reference can be made to the partial structure related to the outward sliding, and for the case where only inward sliding is considered, reference can be made to the partial structure related to the inward sliding.

[0060] In this embodiment, in the initial state, the end of the outer wall of the spray gun outer barrel 3 is snap-connected with the end of the inner wall of the spray gun body 1, and the spray gun inner barrel 4 is fixed by the connecting piece 15, so in the initial state, neither the spray gun inner barrel 4 nor the spray gun outer barrel 3 will slide.

[0061] When the spray gun driving mechanism 8 works and drives the connecting member 15 to extend forward, since the end of the outer wall of the spray gun outer barrel 3 is engaged and connected with the end of the inner wall of the spray gun body 1 in the initial state, the spray gun outer barrel 3 actually forms a locking structure with the spray gun body 1, and the two are integrated. At this time, the spray gun inner barrel 4 and the spray gun outer barrel 3 do not form a locking structure, so the connecting member 15 will apply a forward force to the spray gun inner barrel 4, so that the spray gun inner barrel 4 moves with the connecting member 15, so as to achieve the purpose of the spray gun inner barrel 4 sliding outward relative to the spray gun outer barrel 3. When the spray gun inner barrel 4 slides outward into place, the end of the outer wall of the spray gun inner barrel 4 is engaged and connected with the front end of the inner wall of the spray gun outer barrel 3, and at this time, the spray gun inner barrel 4 and the spray gun outer barrel 3 form a locking structure, and the spray gun outer barrel 3 and the spray gun body 1 have also formed a locking structure. At this time, the spray gun driving mechanism 8 will continue to drive the connecting piece 15 to extend forward. Since the clamping force between the end of the outer wall of the spray gun outer barrel 3 and the end of the inner wall of the spray gun body 1 is less than the clamping force between the end of the outer wall of the spray gun inner barrel 4 and the front end of the inner wall of the spray gun outer barrel 3, the clamping connection between the spray gun outer barrel 3 and the spray gun body 1 will be separated first, and unlocked after the separation of the two. The spray gun outer barrel 3 and the spray gun inner barrel 4 are still in a locked structure, so the spray gun inner barrel 4 and the spray gun outer barrel 3 will move together with the connecting piece 15 as a whole, so that the spray gun outer barrel 3 can slide outward with the spray gun inner barrel 4. Since in the above process, the spray gun inner barrel 4 slides outward first, and the spray gun outer barrel 3 slides outward with the spray gun inner barrel 4, the water flow sprayed from the gun washing port 16 can sequentially clean the spray gun inner barrel 4 and the spray gun outer barrel 3, so as to achieve the best cleaning effect. Obviously, if the spray gun outer barrel 3 slides outward first and then the spray gun inner barrel 4 slides outward, in this case, only the spray gun outer barrel 3 can be cleaned, and the spray gun inner barrel 4 cannot be cleaned. The embodiment of the present invention solves the above problem.

[0062] When the spray gun driving mechanism 8 works and drives the connecting member 15 to retract inward, since the spray gun inner cylinder 4 and the spray gun outer cylinder 3 are still in the state of the locking structure, and the spray gun outer cylinder 3 and the spray gun body 1 are in the unlocked state, the spray gun inner cylinder 4 and the spray gun outer cylinder 3 will move together with the connecting member 15, so as to achieve the purpose of the spray gun outer cylinder 3 and the spray gun inner cylinder 4 sliding inward relative to the spray gun body 1. After the spray gun outer cylinder 3 slides inward to the right position, the end of the outer wall of the spray gun outer cylinder 3 and the end of the inner wall of the spray gun body 1 are re-engaged, that is, the spray gun outer cylinder 3 and the spray gun body 1 re-form a locking structure. Since the spray gun inner cylinder 4 and the spray gun outer cylinder 3 are also in the state of the locking structure at this time, the clamping force between the end of the outer wall of the spray gun outer cylinder 3 and the end of the inner wall of the spray gun body 1 is less than the clamping force between the end of the outer wall of the spray gun inner cylinder 4 and the front end of the inner wall of the spray gun outer cylinder 3. At this time, if the connecting piece 15 continues to retract inward, it will continue to apply a backward force to the spray gun inner barrel 4, so that the spray gun outer barrel 3 will first separate from the spray gun body 1, causing the spray gun outer barrel 3 to continue to slide inward, while the spray gun inner barrel 4 cannot retract. Therefore, the embodiment of the present invention defines that the end of the spray gun outer barrel 3 is abutted against the end of the spray gun body 1, that is, when the spray gun outer barrel 3 and the spray gun body 1 form a locking structure, the spray gun outer barrel 3 cannot continue to retract inward due to the resistance of the end of the spray gun body 1. At this time, if the connecting piece 15 continues to retract inward, the spray gun outer barrel 3 and the spray gun body 1 cannot be separated, and the clamping connection between the spray gun inner barrel 4 and the spray gun outer barrel 3 will be separated, so that the spray gun inner barrel 4 and the spray gun outer barrel 3 are unlocked, and the spray gun inner barrel 4 will move with the connecting piece 15, causing the spray gun inner barrel 4 to slide inward, and finally the spray gun inner barrel 4 reaches the initial state. In the above process, the spray gun outer barrel 3 and the spray gun inner barrel 4 first slide inward relative to the spray gun body 1, and then the spray gun inner barrel 4 slides inward relative to the spray gun outer barrel 3, so the water flow sprayed from the gun washing port 16 can sequentially clean the spray gun outer barrel 3 and the spray gun inner barrel 4 to achieve the best cleaning effect. Obviously, if the spray gun inner barrel 4 slides inward first and then the spray gun outer barrel 3 slides inward, in this case, only the spray gun outer barrel 3 can be cleaned, and the spray gun inner barrel 4 cannot be cleaned. The embodiment of the present invention solves the above problem.

[0063] In this embodiment, in order to fully clean the spray gun outer cylinder 3 and the spray gun inner cylinder 4, the spray gun is controlled to extend the spray gun inner cylinder 4 first and then extend the spray gun outer cylinder 3 when extending the spray gun, and to retract the spray gun outer cylinder 3 first and then retract the spray gun inner cylinder 4 when retracting the spray gun. This ensures that the spray gun outer cylinder 3 and the spray gun inner cylinder 4 can be cleaned regardless of whether they are extended or retracted.

[0064] Obviously, in the embodiment of the present invention, the gun washing port 16 is not only used to clean the outer wall of the spray gun outer barrel 3, but also to clean the outer wall of the spray gun inner barrel 4, so the gun washing port 16 can be set at the front end of the spray gun body 1, such as the front end of the inner wall of the spray gun body 1. And after the spray gun inner barrel 4 and the spray gun outer barrel 3 are retracted, the gun washing port 16 should be at the front end of the spray gun inner barrel 4, so that the purpose of cleaning can be achieved after the spray gun inner barrel 4 is extended first, and the purpose of cleaning can also be achieved after the spray gun inner barrel 4 is retracted. In the embodiment of the present invention, the gun washing port 16 is set at the front end of the spray gun body 1 as an example for explanation. Obviously, the gun washing port 16 can also be set at other positions, such as outside the structure of the entire two-stage spray gun, such as being set on the fixing device of the two-stage spray gun, or at other suitable positions, as long as it can achieve the purpose of cleaning the spray gun outer barrel 3 and the spray gun inner barrel 4. The technical solutions constituted by these positions all belong to the scope of protection of the present invention.

[0065] In one embodiment, if Figure 7 and Figure 8 As shown, a first outer cylinder slot 311 is provided at the end of the outer wall of the spray gun outer cylinder 3, and a spray gun body buckle 17 adapted to the first outer cylinder slot 311 is provided at the end of the inner wall of the spray gun body 1; a spray gun inner cylinder buckle 511 is provided at the end of the outer wall of the spray gun inner cylinder 4, and a second outer cylinder slot 312 adapted to the spray gun inner cylinder buckle 511 is provided at the front end of the inner wall of the spray gun outer cylinder 3; a slot stopper 315 for resisting the spray gun inner cylinder buckle 511 is provided at the front end of the second outer cylinder slot 312; the spray gun body buckle 17 and / or the first outer cylinder slot 311 are elastic parts, and the spray gun inner cylinder buckle 511 and / or the second outer cylinder slot 312 are also elastic parts.

[0066] In this embodiment, the spray gun outer barrel 3 and the spray gun body 1 can be connected by a snap connection through a structural member (i.e., the aforementioned spray gun body buckle 17 and the first outer barrel slot 311). One purpose of the snap connection here is to keep the spray gun outer barrel 3 in its position in the spray gun body 1 when the spray gun is not in use (i.e., in the initial state). Since the spray gun inner barrel 4 is fixed to the connecting member 15, the spray gun can be kept in its position in the spray gun outer barrel 3 by the connecting member 15 when the spray gun is not in use. In this embodiment, the spray gun inner barrel 4 and the spray gun outer barrel 3 can also be connected by a snap connection through a structural member (i.e., the aforementioned spray gun inner barrel buckle 511 and the second outer barrel slot 312). One purpose of the snap connection here is that after the spray gun inner barrel 4 slides outwardly relative to the spray gun outer barrel 3, the spray gun inner barrel 4 is just snapped on the spray gun outer barrel 3, so that the spray gun inner barrel 4 maintains its position after sliding outwardly into place.

[0067] Specifically, the spray gun body buckle 17 or the first outer cylinder slot 311 can be an elastic part, or the spray gun body buckle 17 and the first outer cylinder slot 311 are both elastic parts; the spray gun inner cylinder buckle 511 or the second outer cylinder slot 312 can be an elastic part, or the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312 are both elastic parts. The advantage of the above arrangement is that the spray gun body buckle 17 and the first outer cylinder slot 311 as well as the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312 are not completely fixed, and when a certain force is applied, the spray gun body buckle 17 and the first outer cylinder slot 311 can be separated (here the spray gun outer cylinder 3 is separated from the inside to the outside relative to the spray gun body 1), and the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312 can be separated (here the spray gun inner cylinder 4 is separated from the outside to the inside relative to the spray gun outer cylinder 3), thereby realizing the sequential extension and retraction of the spray gun inner cylinder 4 and the spray gun outer cylinder 3.

[0068] Specifically, the slot stopper 315 provided at the front end of the second outer cylinder slot 312 is used to resist the spray gun inner cylinder buckle 511 from continuing to slide forward. Because after the spray gun inner cylinder 4 slides outward until the spray gun inner cylinder buckle 511 is engaged with the second outer cylinder slot 312, the spray gun body buckle 17 is also engaged with the first outer cylinder slot 311. Therefore, the spray gun inner cylinder 4 and the spray gun outer cylinder 3, and the spray gun outer cylinder 3 and the spray gun body 1 are in a locked structure at the same time. At this time, the spray gun inner cylinder 4 needs to continue to slide outward. Therefore, the embodiment of the present invention provides the slot stopper 315 at the front end of the second outer cylinder slot 312. When the spray gun inner cylinder 4 slides outward until the spray gun inner cylinder buckle 511 is engaged with the second outer cylinder slot 312, the spray gun body buckle 17 is also engaged with the first outer cylinder slot 311. After the barrel buckle 511 is engaged with the second outer barrel slot 312, if the connecting piece 15 continues to apply a forward force to the spray gun inner barrel 4, the spray gun inner barrel buckle 511 will be blocked by the slot block 315 and cannot continue to slide forward. Therefore, at this time, the engagement force between the end of the outer wall of the spray gun inner barrel 4 and the front end of the inner wall of the spray gun outer barrel 3 is much greater than the engagement force between the end of the outer wall of the spray gun outer barrel 3 and the end of the inner wall of the spray gun body 1. Therefore, the locking structure of the spray gun outer barrel 3 and the spray gun body 1 will be released, and the two will be separated, so that the spray gun outer barrel 3 and the spray gun inner barrel 4 will slide outward relative to the spray gun body 1.

[0069] Specifically, Figure 7 and Figure 8As shown, when the connecting member 15 is driven by the spray gun driving mechanism 8 and extends forward, the connecting member 15 will apply a forward force to the spray gun inner barrel 4. At this time, since the spray gun body buckle 17 is engaged with the first outer barrel slot 311, a locking structure is formed between the spray gun outer barrel 3 and the spray gun body 1. At this time, the spray gun inner barrel buckle 511 is not engaged with the second outer barrel slot 312, so the spray gun inner barrel 4 will be pushed by the connecting member 15 and slide outward, that is, the spray gun inner barrel 4 slides outward relative to the spray gun outer barrel 3. During the outward sliding process, the end of the outer wall of the spray gun inner barrel 4 continuously moves forward, and the spray gun inner barrel buckle 511 thereon will contact the second outer barrel slot 312 on the front end of the spray gun outer barrel 3, as shown in FIG. Fig. 9 and Fig.10 As shown, at the same time, since at least one of the spray gun inner barrel buckle 511 and the second outer barrel slot 312 is an elastic member, the spray gun inner barrel buckle 511 and the second outer barrel slot 312 will eventually contact and engage due to the force of the connecting member 15. Fig.11 and Fig.12 As shown, in this state, the spray gun body buckle 17 is engaged with the first outer tube slot 311 , and the spray gun inner tube buckle 511 is engaged with the second outer tube slot 312 . When the connecting piece 15 continues to extend forward, the connecting piece 15 continues to apply a forward force to the spray gun inner tube 4. Since the clamping force between the spray gun body buckle 17 and the first outer tube slot 311 is smaller than the clamping force between the spray gun inner tube buckle 511 and the second outer tube slot 312, and the spray gun body buckle 17 and the first outer tube slot 311 have at least one elastic member, when the spray gun inner tube 4 is subjected to the forward force at this time, the spray gun body buckle 17 and the first outer tube slot 311 will be separated preferentially by elastic force, that is, the spray gun outer tube 3 starts to slide outward. After the spray gun body buckle 17 and the first outer tube slot 311 are completely separated, the locking structure between the spray gun outer tube 3 and the spray gun body 1 is released, so the spray gun outer tube 3 will continue to slide outward. When the spray gun outer tube 3 slides outward to the spray gun body 1, the spray gun driving mechanism 8 stops driving the connecting piece. Fig.13 and Fig.14 As shown. In addition, in the embodiment of the present invention, the sliding distance can also be selected during the extension of the spray gun outer barrel 3, because different users have different buttocks and the positions of the parts to be cleaned are also different, so the sliding distance can be appropriately adjusted without controlling the spray gun outer barrel 3 to slide outward to the extreme position. In a specific application scenario, the spray gun body 1 is tilted downward, so that the front ends of the spray gun outer barrel 3 and the spray gun inner barrel 4 are both tilted downward.

[0070] When the spray gun driving mechanism 8 drives the connecting member 15 to retract backward, the connecting member 15 will apply a backward force to the spray gun inner cylinder 4. Since the spray gun body buckle 17 and the first outer cylinder slot 311 are in a separated state, and the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312 are in an engaged state, the spray gun inner cylinder 4 and the spray gun outer cylinder 3 form a locking structure, and the two will maintain the current state and slide inward relative to the spray gun body 1. During the inward sliding process, the first outer cylinder slot 311 on the spray gun outer cylinder 3 gradually contacts the spray gun body buckle 17 on the spray gun body 1, and since at least one of the spray gun body buckle 17 and the first outer cylinder slot 311 is an elastic member, the spray gun body buckle 17 and the first outer cylinder slot 311 will eventually contact and engage due to the force of the connecting member 15. At this time, the end of the spray gun outer cylinder 3 is limited by the end of the inner wall of the spray gun body 1 and cannot continue to retract, while the spray gun inner cylinder 4 continues to be acted upon by the connecting piece 15, so that the spray gun inner cylinder buckle 511 is separated from the second outer cylinder slot 312, so that the spray gun inner cylinder 4 begins to retract inward relative to the spray gun outer cylinder 3, and finally retracts into place, and the spray gun driving mechanism 8 stops driving the connecting piece 15 to retract inward, and maintains the retracted position of the spray gun inner cylinder 4 through the connecting piece 15.

[0071] It should be noted that in the various embodiments of the present invention, whether it is the spray gun inner barrel 4 or the spray gun outer barrel 3, its sliding outward refers to sliding outward, sliding forward, sliding forward, extending forward, extending forward or extending, etc., and its sliding inward refers to sliding inward, sliding backward, sliding backward, retracting backward, retracting backward or retracting, etc. For the connecting part, extending forward can also be referred to as extending forward, extending outward, extending outward, extending, etc., and retracting backward can also be referred to as retracting backward, retracting inward, retracting inward, retracting, etc. The end mentioned in the various embodiments of the present invention can also be the rear end, for example, the end of the outer wall of the spray gun outer barrel can also be referred to as the rear end of the outer wall of the spray gun outer barrel, and the front end of the spray gun outer barrel or the spray gun inner barrel mentioned in the various embodiments of the present invention refers to the direction in which the spray gun outer barrel or the spray gun inner barrel extends forward.

[0072] In one embodiment, the slot stopper 315 and the second outer cylinder slot 312 may be integrally provided or separately provided.

[0073] In one embodiment, the force required for the spray gun inner tube buckle 511 to enter the second outer tube slot 312 is smaller than the engagement force between the spray gun body buckle 17 and the first outer tube slot 311 . In this embodiment, when the spray gun inner barrel 4 slides outward relative to the spray gun outer barrel 3 until the spray gun inner barrel buckle 511 contacts the second outer barrel slot 312, the spray gun inner barrel 4 continues to slide forward. At this time, the spray gun inner barrel buckle 511 needs to enter the second outer barrel slot 312. At this time, if the force required for the spray gun inner barrel buckle 511 to enter the second outer barrel slot 312 is greater than the clamping force between the spray gun body buckle 17 and the first outer barrel slot 311, then the spray gun body buckle 17 may first disengage from the first outer barrel slot 311, causing the spray gun outer barrel 3 to start sliding outward without forming a locking structure with the spray gun inner barrel 4. Therefore, in order to avoid this situation, the embodiment of the present invention provides the above-mentioned structure so that the spray gun inner barrel buckle 511 first enters the second outer barrel slot 312, thereby achieving the purpose of forming a locking structure between the spray gun inner barrel 4 and the spray gun outer barrel 3.

[0074] In one embodiment, the force required for the spray gun body buckle 17 to enter the first outer cylinder slot 311 is less than the engagement force between the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312. In this embodiment, when the spray gun outer cylinder 3 slides inward relative to the spray gun body 1 until the spray gun body buckle 17 contacts the first outer cylinder slot 311, the spray gun outer cylinder 3 continues to slide forward, and the spray gun body buckle 17 needs to enter the first outer cylinder slot 311. In fact, the spray gun body buckle 17 does not move here, and the first outer cylinder slot 311 moves from front to back to the position of the spray gun body buckle 17, so the force here can also be understood as the force of the first outer cylinder slot 311 entering the spray gun body buckle 17. At this time, if the force required for the spray gun body buckle 17 to enter the first outer cylinder slot 311 is greater than the clamping force between the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312, then the spray gun inner cylinder buckle 511 may first disengage from the second outer cylinder slot 312, causing the spray gun inner cylinder 4 to start sliding inward when the spray gun outer cylinder 3 and the spray gun body 1 are locked. Therefore, in order to avoid this situation, the embodiment of the present invention provides the above-mentioned structure, so that the spray gun body buckle 17 first enters the first outer cylinder slot 311, so as to achieve the purpose of forming a locking structure between the spray gun outer cylinder 3 and the spray gun body 1.

[0075] In a specific application scenario, in order to make the force required for the spray gun inner cylinder buckle 511 to enter the second outer cylinder slot 312 smaller than the clamping force between the spray gun body buckle 17 and the first outer cylinder slot 311, a first clamping portion is provided at the end of the first outer cylinder slot 311, a first inclined surface is provided at the front end of the first clamping portion, and a second inclined surface is provided at the end of the spray gun body buckle 17. In the process of the spray gun inner cylinder 4 sliding outward, the first inclined surface is in close contact with the second inclined surface, and the two form a clamping force; a second clamping portion is provided at the end of the second outer cylinder slot 312, and a third inclined surface is provided at the end of the second clamping portion. When the spray gun inner cylinder 4 slides outward until the spray gun inner cylinder buckle 511 contacts the end of the second clamping portion, it is actually the front end of the spray gun inner cylinder buckle 511 that contacts the third inclined surface, and the front end of the spray gun inner cylinder buckle 511 will apply a force to the third inclined surface. In order to reduce the force of the spray gun inner barrel buckle 511 entering the second outer barrel slot 312, the third slope can be set to a structure that tilts backward from bottom to top, and the first slope can be set to a structure that tilts backward from bottom to top, and the second slope can be set to a structure that tilts backward from bottom to top, and the inclination of the first slope and the second slope is smaller than that of the third slope, that is, the first slope and the second slope are closer to the vertical line (the vertical line is perpendicular to the sliding direction of the spray gun outer barrel 3 and the spray gun inner barrel 4) and the third slope is closer to the horizontal line, so that the third slope will form a guiding effect, guiding the spray gun inner barrel buckle 511 to enter the second outer barrel slot 312, while the first slope and the second slope are vertically fitted and cannot be easily separated. The inclination angles of the first slope and the second slope can be set to be the same, and the two fit more closely.

[0076] In a specific application scenario, in order to make the force required for the spray gun body buckle 17 to enter the first outer cylinder slot 311 smaller than the clamping force between the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312, a fourth inclined plane tilted forward from bottom to top can be provided at the front end of the spray gun body buckle 17, a fifth inclined plane tilted forward from bottom to top can be provided at the front end of the first clamping portion, and a sixth inclined plane tilted forward from bottom to top can be provided at the front end of the second clamping portion. In the process of the spray gun outer cylinder 3 and the spray gun inner cylinder 4 forming a locking structure and sliding inward together, the sixth inclined plane is in close contact with the spray gun inner cylinder buckle 511, and the two form a clamping force; when the spray gun outer cylinder 3 slides inward until the first clamping portion contacts the spray gun body buckle 17, it is actually the fourth inclined plane that contacts the fifth inclined plane. The inclination of the fourth and fifth inclined planes can be set to be greater than that of the sixth inclined plane, that is, the fourth and fifth inclined planes are closer to the horizontal line relative to the sixth inclined plane (the horizontal line is parallel to the sliding direction of the spray gun outer cylinder 3 and the spray gun inner cylinder 4), so that when the spray gun outer cylinder 3 is retracted, the spray gun body buckle 17 can easily enter the first outer cylinder slot 311, and actually the first outer cylinder slot 311 slides to make the spray gun body buckle 17 stuck in the first outer cylinder slot 311.

[0077] In one embodiment, if Fig.15 and Fig.16 As shown, an outer cylinder slider 314 is provided on the side of the outer wall of the spray gun outer cylinder 3, and a body slide groove 18 for the outer cylinder slider 314 to slide is provided on the side of the inner wall of the spray gun body 1; a limit block 19 for resisting the outer cylinder slider 314 is provided at the front end of the body slide groove 18;

[0078] The side of the inner wall of the spray gun outer barrel 3 is provided with an outer barrel slide groove 313;

[0079] The side of the outer wall of the spray gun inner cylinder 4 is provided with an inner cylinder slider for sliding in the outer cylinder slide groove 313; or the spray gun inner cylinder buckle 511 can be slidably set in the outer cylinder slide groove 313, and the second outer cylinder slot 312 is set at the front end of the outer cylinder slide groove 313.

[0080] Specifically, the purpose of setting the outer cylinder slide block 314 and the body slide groove 18 is to enable the spray gun outer cylinder 3 to slide back and forth stably in the spray gun body 1, and to slide back and forth along the axis formed by the body slide groove 18 without any rotation, so as to maintain the stability of sliding. Of course, in order to make the sliding process more stable, two body slide grooves 18 can be set, and two outer cylinder slide blocks 314 can be set correspondingly. These two body slide grooves 18 can be set symmetrically, and even more than two body slide grooves 18 can be set and evenly distributed. The function of setting the limit block 19 at the front end of the body slide groove 18 is to resist the outer cylinder slide block 314 to prevent the spray gun outer cylinder 3 from sliding outward beyond the limit position, so that the outer cylinder slide block 314 stops sliding when it slides to the position of the limit block 19.

[0081] In a specific application scenario, an inner cylinder slider is provided on the side of the outer wall of the spray gun inner cylinder 4, and an outer cylinder slide groove 313 for the inner cylinder slider to slide is provided on the side of the inner wall of the spray gun outer cylinder 3. The purpose of providing the inner cylinder slider and the outer cylinder slide groove 313 is to enable the spray gun inner cylinder 4 to slide back and forth stably in the spray gun outer cylinder 3, and to slide back and forth along the axis formed by the outer cylinder slide groove 313 without any rotation, thereby maintaining the stability of sliding. Of course, in order to make the sliding process more stable, two outer cylinder slide grooves 313 can be provided, and two inner cylinder sliders can be provided accordingly. The two outer cylinder slide grooves 313 can be symmetrically arranged, and even more than two outer cylinder slide grooves 313 can be provided and evenly distributed.

[0082] In a specific application scenario, the spray gun inner barrel buckle 511 can be slidably disposed in the outer barrel slot 313, and the second outer barrel slot 312 is disposed at the front end of the outer barrel slot 313. In this specific application scenario, the spray gun inner barrel buckle 511 actually replaces the aforementioned inner barrel slider, that is, the spray gun inner barrel buckle 511 can not only play the role of engaging with the second outer barrel slot 312, but also play the role of an inner barrel slider, and the spray gun inner barrel buckle 511 can slide back and forth in the outer barrel slot 313. When the spray gun inner barrel buckle 511 slides to the front end of the outer barrel slot 313, it will gradually contact with the second outer barrel slot 312 and engage in the second outer barrel slot 312. Such a design can simplify the structure of the spray gun inner barrel 4 and the spray gun outer barrel 3, and the structural design is more ingenious. The shape of the spray gun inner barrel buckle 511 can be set to a cylinder with a circular cross section, a quadrilateral with a quadrilateral cross section, or a column with a triangular cross section, etc. The shape of the second outer barrel clamping groove 312 is adapted to the shape of the spray gun inner barrel buckle 511, so that the spray gun inner barrel buckle 511 can be better and more stably clamped in the second outer barrel clamping groove 312. In a specific application scenario, the spray gun inner barrel buckle 511 can be slidably set in the outer barrel slide groove 313, and the second outer barrel clamping groove 312 is set at the front end of the outer barrel slide groove 313. At the same time, an independent inner barrel slider and an independent outer barrel slide groove 313 can also be set, that is, the outer barrel slide groove 313 is set on the side of the inner wall of the spray gun outer barrel 3; the inner barrel slider for sliding in the outer barrel slide groove 313 is set on the side of the outer wall of the spray gun inner barrel 4. This application scenario combines the above two application scenarios. The spray gun inner cylinder 4 slides within the outer cylinder slot 313 . When sliding outward, it can at most enter the second outer cylinder slot 312 in front and engage with it. When sliding inward, it can at most slide to the end of the outer cylinder slot 313 .

[0083] In one embodiment, the end of the spray gun body 1 is provided with an arc-shaped receiving groove 14 for receiving the connecting member 15. Fig.17 As shown, the spray gun outer cylinder 3 includes an outer cylinder body 31 and a bracket 32. The bracket 32 ​​is buckled at the end of the outer cylinder body 31 and is used to keep the connecting member 15 flat during movement.

[0084] Since the connecting member 15 is a flexible rack, most of the end of the connecting member 15 needs to be stored in the arc storage groove 14 when the spray gun is not in use, so as to reduce the volume of the entire spray gun. The end of the spray gun body 1 can also be provided with a storage cavity for storing the connecting member 15, which can be used to store a flexible rack or a flexible steel belt. When the spray gun is used, the flexible rack needs to be brought out by the transfer gear 82. After being brought out by the transfer gear 82, the flexible rack needs to be kept flat in order to drive the spray gun inner cylinder 4 and the spray gun outer cylinder 3 to slide back and forth. Therefore, in order to better keep the flexible rack flat, a bracket 32 ​​is added to the end of the outer cylinder body 31. The bracket 32 ​​is used to keep the flexible rack entering the inside of the spray gun flat. The side of the bracket 32 ​​can be provided with a buckle position, and the side of the outer cylinder body 31 is correspondingly provided with a buckle groove, so that the bracket 32 ​​is buckled on the outer cylinder body 31. The bracket 32 ​​can play a supporting role in the sliding process of the flexible rack, so that the flexible rack can remain flat during the sliding process. An outer cylinder protective sleeve 33 can also be provided outside the outer cylinder body 31, and the outer cylinder protective sleeve 33 is sleeved outside the outer cylinder body 31 to protect the outer cylinder body 31.

[0085] In a specific application scenario, such as Figure 5 As shown, the spray gun body 1 includes a spray gun seat 11 and a spray gun shell 12 covering the spray gun seat 11. The front ends of the spray gun seat 11 and the spray gun shell 12 are covered to form a hollow gun barrel 13, and the spray gun 2 is arranged in the gun barrel 13. The rear ends of the spray gun seat 11 and the spray gun shell 12 are covered to form the arc-shaped receiving groove 14.

[0086] In one embodiment, in combination Figure 4 and Fig.18 As shown, the spray gun inner barrel 4 also includes a spray gun body 5, which includes an inner barrel body 51, a connector clamp 53 and a nozzle 52. The spray head assembly 6 is sleeved on the front end of the nozzle 52, and the nozzle 52 is arranged at the front end of the inner barrel body 51. The connector clamp 53 is buckled at the end of the inner barrel body 51, and the front end of the connector 15 is fixed between the connector clamp 53 and the inner barrel body 51. Fig.19 As shown, the nozzle assembly 6 may include a nozzle 61 and a nozzle protection cover 62 sleeved on the nozzle 61 .

[0087] The nozzle 52 is arranged at the front end of the inner cylinder body 51, and the spray head assembly 6 is sleeved on the front end of the nozzle 52. The function of the nozzle 52 is to introduce water flow into the spray head assembly 6, so that the water flow is sprayed from the spray head assembly 6, thereby cleaning the user's to-be-cleaned part. The function of the connector clamp 53 is to clamp the connector 15 between the connector clamp 53 and the inner cylinder body 51. Specifically, the front end of the connector 15 includes a first part, a second part and a third part, wherein the first part is vertical to the connector 15 as a whole, the second part is vertically arranged with the first part, and the third part is vertically arranged with the second part. On the whole, the first part is arranged upward, the third part is arranged downward, and the second part is arranged horizontally, so that the first part is arranged in parallel with the third part, the third part is abutted on the connector clamp 53, the second part is clamped between the connector clamp 53 and the spray gun inner cylinder 4, and the first part is abutted on the end of the inner cylinder body 51, so that the front end of the connector 15 is stably fixed between the connector clamp 53 and the inner cylinder body 51.

[0088] An inner cylinder protective sleeve 54 may also be provided on the inner cylinder body 51, and the inner cylinder protective sleeve 54 is sleeved outside the inner cylinder body 51 to protect the inner cylinder body 51. Since the spray gun inner cylinder 4 is provided with a spray gun inner cylinder buckle 511, and the spray gun inner cylinder buckle 511 needs to contact the second outer cylinder buckle groove 312 on the spray gun outer cylinder 3, the spray gun inner cylinder buckle 511 may be provided on the inner cylinder body 51, and correspondingly, the outer cylinder protective sleeve 54 is provided with a through hole for the spray gun inner cylinder buckle 511 to pass through.

[0089] An embodiment of the present invention further provides an intelligent toilet, which includes the retractable two-stage spray gun as described above.

[0090] In one embodiment, if Fig. 20 and Fig.21 As shown, specifically, the intelligent toilet comprises a ceramic body 100, a host base 600 disposed above the ceramic body 100, a host housing 200 covering the host base 600, a seat ring 300 disposed above the ceramic body 100, a flip cover 400 disposed above the seat ring 300, and a retractable two-stage spray gun 700, wherein the host base 600 is fixedly disposed on the ceramic body 100, the retractable two-stage spray gun 700 is disposed on the host base 600, and the host housing 200 covers the host base 600 to protect various components disposed on the host base 600. In addition, a spray gun switch door 500 may be disposed on the host housing 200, and the spray gun switch door 500 may be opened when the spray gun is extended, and the spray gun switch door 500 may be closed when the spray gun is retracted.

[0091] The embodiment of the present invention further provides a control method of the telescopic two-stage spray gun as described above, which comprises:

[0092] Control the inner barrel of the spray gun to slide outward relative to the outer barrel of the spray gun first;

[0093] When the spray gun inner cylinder slides outwards to a certain position, the spray gun outer cylinder is controlled to slide outwards together with the spray gun inner cylinder relative to the spray gun body;

[0094] During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

[0095] The above embodiment is for the situation where the spray gun inner barrel and the spray gun outer barrel slide outward, that is, the spray gun inner barrel first slides outward relative to the spray gun outer barrel, and then the spray gun outer barrel drives the spray gun inner barrel to slide outward relative to the spray gun body, so that the outer wall of the spray gun outer barrel and the spray gun inner barrel can be cleaned when sliding outward.

[0096] The embodiment of the present invention further provides a control method of the telescopic two-stage spray gun as described above, which comprises:

[0097] When the spray gun outer cylinder slides outward to a certain position, the spray gun outer cylinder and the spray gun inner cylinder are controlled to slide inward relative to the spray gun body;

[0098] When the spray gun outer barrel slides inwardly to a certain position, the spray gun inner barrel is controlled to slide inwardly relative to the spray gun outer barrel;

[0099] During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

[0100] The above embodiment is for the situation where the spray gun inner barrel and the spray gun outer barrel slide inwardly, that is, the spray gun outer barrel first drives the spray gun inner barrel to slide inwardly relative to the spray gun body, and then the spray gun inner barrel slides inwardly relative to the spray gun outer barrel, so that the outer wall of the spray gun outer barrel and the spray gun inner barrel can be cleaned when sliding inwardly.

[0101] The embodiment of the present invention further provides a control method of the telescopic two-stage spray gun as described above, which comprises:

[0102] Control the inner barrel of the spray gun to slide outward relative to the outer barrel of the spray gun first;

[0103] When the spray gun inner cylinder slides outwards to a certain position, the spray gun outer cylinder is controlled to slide outwards together with the spray gun inner cylinder relative to the spray gun body;

[0104] When the spray gun outer cylinder slides outward to a certain position, the spray gun outer cylinder and the spray gun inner cylinder are controlled to slide inward relative to the spray gun body;

[0105] When the spray gun outer barrel slides inwardly to a certain position, the spray gun inner barrel is controlled to slide inwardly relative to the spray gun outer barrel;

[0106] During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

[0107] The above embodiment is aimed at the situation that the spray gun inner cylinder and the spray gun outer cylinder slide outward and inward at the same time, that is, the spray gun inner cylinder first slides outward relative to the spray gun outer cylinder, and then the spray gun outer cylinder drives the spray gun inner cylinder to slide outward relative to the spray gun body, so that the spray gun outer cylinder and the outer wall of the spray gun inner cylinder can be cleaned when sliding outward. And the spray gun outer cylinder can first drive the spray gun inner cylinder to slide inward relative to the spray gun body, and then the spray gun inner cylinder slides inward relative to the spray gun outer cylinder, so that the spray gun outer cylinder and the outer wall of the spray gun inner cylinder can be cleaned when sliding inward.

[0108] It should be noted that, in the above-mentioned embodiment of the present invention, according to the description of the previous device part, with respect to "the spray gun inner cylinder slides outward into place", the optimal situation is that, since the force required for the spray gun inner cylinder buckle 511 to enter the second outer cylinder slot 312 is less than the engagement force between the spray gun body buckle 17 and the first outer cylinder slot 311, the spray gun inner cylinder buckle 511 can enter the second outer cylinder slot 312 and engage therewith, and the spray gun body buckle 17 and the first outer cylinder slot 311 are also in an engaged state. However, if the force required for the spray gun inner barrel buckle 511 to enter the second outer barrel slot 312 is greater than the engagement force between the spray gun body buckle 17 and the first outer barrel slot 311, the spray gun inner barrel buckle 511 cannot enter the second outer barrel slot 312. At this time, although the spray gun inner barrel buckle 511 is not engaged with the second outer barrel slot 312, due to the small engagement force between the spray gun body buckle 17 and the first outer barrel slot 311, the spray gun outer barrel will slide outwards together without forming a locking structure with the spray gun inner barrel. Although the spray gun inner barrel buckle 511 is not engaged with the second outer barrel slot 312 in this case, this situation can also be called the spray gun inner barrel sliding outwards into place. Regardless of the above situation, the spray gun outer barrel sliding outwards into place means that the spray gun outer barrel slides outwards so that the outer barrel slider 314 slides to the position of the limit block 19, and the spray gun outer barrel cannot continue to slide outwards, achieving outward sliding into place. After the spray gun outer barrel slides outward into place, for the second situation mentioned above, an outward force can continue to be applied to the spray gun inner barrel, so that the spray gun inner barrel buckle 511 enters the second outer barrel slot 312, which can also achieve the purpose of forming a locking structure between the spray gun inner barrel and the spray gun outer barrel.

[0109] It should also be noted that, in the embodiment of the present invention, according to the description of the previous device part, with respect to "the spray gun outer barrel slides inward into place", the optimal situation is that, since the force required for the spray gun body buckle 17 to enter the first outer barrel slot 311 is less than the engagement force between the spray gun inner barrel buckle 511 and the second outer barrel slot 312, the spray gun body buckle 17 can enter the first outer barrel slot 311 and engage with it, and the spray gun inner barrel buckle 511 and the second outer barrel slot 312 are also in an engaged state. However, if the force required for the spray gun body buckle 17 to enter the first outer cylinder slot 311 is greater than the engagement force between the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312, the spray gun body buckle 17 cannot enter the first outer cylinder slot 311. At this time, although the spray gun body buckle 17 is not engaged with the first outer cylinder slot 311, since the engagement force between the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312 is small, the spray gun inner cylinder buckle 511 and the second outer cylinder slot 312 begin to gradually separate, thereby causing the spray gun inner cylinder to slide inward relative to the spray gun outer cylinder. Although the spray gun body buckle 17 is not engaged with the first outer cylinder slot 311 in this case, this situation can also be referred to as the spray gun outer cylinder sliding inward into place. Regardless of the above situation, the spray gun inner barrel will eventually slide inwards and slide into position, and the position where it slides into position can be that the spray gun inner barrel buckle 511 slides to the end of the outer barrel slide groove 313, so that the end of the outer barrel slide groove 313 abuts against the spray gun inner barrel buckle 511, so that the spray gun inner barrel cannot continue to slide inwards. In the second situation, since the spray gun outer barrel has not yet engaged with the spray gun body, an inward force can continue to be applied to the spray gun inner barrel, so that the spray gun body buckle 17 is finally not engaged with the first outer barrel slot 311.

[0110] The implementation process and technical details of this method have been described in detail in the previous method and will not be repeated in this embodiment.

[0111] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0112] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A retractable two-stage spray gun, used in an intelligent toilet, characterized in that: The retractable two-stage spray gun includes a spray gun body, a spray gun arranged in the spray gun body, the spray gun includes a spray gun outer barrel slidably arranged in the spray gun body and a spray gun inner barrel slidably arranged in the spray gun outer barrel, the spray gun body is provided with a spray gun driving mechanism for driving the spray gun outer barrel and the spray gun inner barrel to slide, and the spray gun inner barrel includes a spray head assembly arranged at the front end and used to clean the user's part to be cleaned; The spray gun driving mechanism is connected to a connecting piece, and the spray gun driving mechanism drives the connecting piece to extend and retract forward and backward, and the front end of the connecting piece is fixed on the inner barrel of the spray gun; The end of the outer wall of the spray gun outer barrel is engaged with the end of the inner wall of the spray gun body; when the spray gun inner barrel slides outwardly relative to the spray gun outer barrel and is in place, the end of the outer wall of the spray gun inner barrel is engaged with the front end of the inner wall of the spray gun outer barrel; the engagement force between the end of the outer wall of the spray gun outer barrel and the end of the inner wall of the spray gun body is smaller than the engagement force between the end of the outer wall of the spray gun inner barrel and the front end of the inner wall of the spray gun outer barrel; A first outer cylinder slot is provided at the end of the outer wall of the spray gun outer cylinder, and a spray gun body buckle matched with the first outer cylinder slot is provided at the end of the inner wall of the spray gun body; a spray gun inner cylinder buckle is provided at the end of the outer wall of the spray gun inner cylinder, and a second outer cylinder slot matched with the spray gun inner cylinder buckle is provided at the front end of the inner wall of the spray gun outer cylinder; a slot stopper for resisting the spray gun inner cylinder buckle is provided at the front end of the second outer cylinder slot, and the slot stopper is provided at the front end of the second outer cylinder slot; the spray gun body buckle and / or the first outer cylinder slot are elastic parts, and the spray gun inner cylinder buckle and / or the second outer cylinder slot are also elastic parts; The force required when the spray gun inner tube buckle enters the second outer tube slot is smaller than the clamping force between the spray gun body buckle and the first outer tube slot; The force required when the spray gun body buckle enters the first outer tube slot is smaller than the clamping force between the spray gun inner tube buckle and the second outer tube slot; The front end of the spray gun body is provided with a gun washing port for cleaning the outer wall of the spray gun outer barrel and the outer wall of the spray gun inner barrel.

2. The retractable two-stage spray gun according to claim 1, characterized in that: The spray gun driving mechanism comprises a spray gun driving motor and a transfer gear, wherein the spray gun driving motor is connected to the transfer gear, the connecting member is a flexible rack, and the transfer gear is meshed with the flexible rack; Alternatively, the spray gun driving mechanism includes a spray gun driving motor and a rotating wheel, wherein the spray gun driving motor is connected to the rotating wheel and drives the rotating wheel to rotate, and the connecting member is a flexible steel belt, wherein the rotating wheel is connected to the flexible steel belt and drives the flexible steel belt to be wound or unwound.

3. The retractable two-stage spray gun according to claim 1, characterized in that: An outer cylinder slider is arranged on the side of the outer wall of the spray gun outer cylinder, and a body slide groove for sliding the outer cylinder slider is arranged on the side of the inner wall of the spray gun body; a limiting block for resisting the outer cylinder slider is arranged at the front end of the body slide groove.

4. The retractable two-stage spray gun according to claim 1, characterized in that: When the spray gun outer barrel slides inwardly to a position, the end of the spray gun outer barrel abuts against the end of the spray gun body.

5. The retractable two-stage spray gun according to claim 1, characterized in that: An outer cylinder slide groove is arranged on the side of the inner wall of the outer cylinder of the spray gun; an inner cylinder sliding block used for sliding in the outer cylinder slide groove is arranged on the side of the outer wall of the inner cylinder of the spray gun.

6. The retractable two-stage spray gun according to claim 1, characterized in that: An outer cylinder slide groove is arranged on the side of the inner wall of the spray gun outer cylinder, the spray gun inner cylinder buckle can be slidably arranged in the outer cylinder slide groove, and the second outer cylinder clamping groove is arranged at the front end of the outer cylinder slide groove.

7. The retractable two-stage spray gun according to claim 2, characterized in that: The end of the spray gun body is provided with an arc-shaped receiving groove for receiving the connecting piece. The spray gun outer cylinder comprises an outer cylinder body and a bracket. The bracket is buckled at the end of the outer cylinder body and is used to keep the connecting piece flat during movement. The spray gun inner barrel also includes a spray gun body, which includes an inner barrel body, a connector clamp and a nozzle. The spray head assembly is sleeved on the front end of the nozzle, and the nozzle is arranged at the front end of the inner barrel body. The connector clamp is buckled on the end of the inner barrel body, and the front end of the connector is fixed between the connector clamp and the inner barrel body.

8. An intelligent toilet, characterized in that: It comprises a retractable two-stage spray gun as described in any one of claims 1 to 7.

9. A control method for a retractable two-stage spray gun as claimed in any one of claims 1 to 7, characterized in that: include: Control the inner barrel of the spray gun to slide outward relative to the outer barrel of the spray gun first; When the spray gun inner cylinder slides outwards to a certain position, the spray gun outer cylinder is controlled to slide outwards together with the spray gun inner cylinder relative to the spray gun body; During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

10. A control method for a retractable two-stage spray gun according to any one of claims 1 to 7, characterized in that: include: When the spray gun outer cylinder slides outward to a certain position, the spray gun outer cylinder and the spray gun inner cylinder are controlled to slide inward relative to the spray gun body; When the spray gun outer barrel slides inwardly to a certain position, the spray gun inner barrel is controlled to slide inwardly relative to the spray gun outer barrel; During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

11. A control method for a retractable two-stage spray gun according to any one of claims 1 to 7, characterized in that: include: Control the inner barrel of the spray gun to slide outward relative to the outer barrel of the spray gun first; When the spray gun inner cylinder slides outwards to a certain position, the spray gun outer cylinder is controlled to slide outwards together with the spray gun inner cylinder relative to the spray gun body; When the spray gun outer cylinder slides outward to a certain position, the spray gun outer cylinder and the spray gun inner cylinder are controlled to slide inward relative to the spray gun body; When the spray gun outer barrel slides inwardly to a certain position, the spray gun inner barrel is controlled to slide inwardly relative to the spray gun outer barrel; During the sliding process of the spray gun outer cylinder and the spray gun inner cylinder, the spray gun outer cylinder and the spray gun inner cylinder are cleaned.

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