A dispenser

Abstract

The application relates to a distributor, which comprises a first shell general shell, the general shell comprising a second shell and a third shell, the second shell being located between the first shell and the third shell, the first shell being provided with a first throwing groove part, the first throwing groove part being provided with a first throwing cavity, the second shell being sealingly fixed with the third shell, the general shell being provided with a second throwing cavity, the second throwing cavity being located between the second shell and the third shell; and the first shell being connected with the general shell. Since the general shell is provided with the second throwing cavity, the overall structure and size of the second throwing cavity are fixed, and the second throwing cavity does not need to be changed along with the change of the first shell, so that the change of the second shell and the third shell and the corresponding tooling molds of the two is saved, and the change cost is saved.

Description

Technical Field

[0001] This application involves Home appliances Technical field, particularly applicable to dishwasher products, especially relating to a Distributor . Background Technology

[0002] In related technologies, the dispenser has an upper shell and a lower shell; the upper shell and the lower shell are sealed and fixed by welding, and a cavity is formed between the upper shell and the lower shell to contain dishwashing liquid; the upper shell has a dispensing slot to contain dishwashing powder; however, different customers have different customization requirements for the upper shell. When the upper shell is modified according to the customization requirements, the lower shell also needs to be modified to ensure the overall layout and size of the cavity. Furthermore, the tooling molds corresponding to the upper shell and the lower shell are forced to change with the customization requirements of the upper shell. Thus, the product and tooling change costs are high. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the following technical solutions are provided:

[0004] A dispenser includes: a first housing and a universal housing, the universal housing including a second housing and a third housing, the second housing being located between the first housing and the third housing, the first housing having a first dispensing slot having a first dispensing cavity, the second housing being sealed and fixed to the third housing, the universal housing having a second dispensing cavity being located between the second housing and the third housing; the first housing being connected to the universal housing.

[0005] Since the universal housing has a second injection cavity located between the second housing and the third housing, the overall structure and size of the second injection cavity are fixed and do not need to be changed with the modification of the first housing. This saves on the modification of the second housing and the third housing, as well as the corresponding tooling molds, and thus saves on modification costs. Attached Figure Description

[0006] Figure 1 This is a front view schematic diagram of one embodiment of this application;

[0007] Figure 2 This is a perspective view of one embodiment of the present application;

[0008] Figure 3 This is an exploded view of one embodiment of this application;

[0009] Figure 4 for Figure 1 sectional view along line AA;

[0010] Figure 5 for Figure 4 Enlarged schematic diagram of region B in the middle;

[0011] Figure 6 for Figure 4 Enlarged schematic diagram of region C in the middle;

[0012] Figure 7 for Figure 3 A schematic diagram of the first shell in the middle;

[0013] Figure 8 for Figure 3 A schematic diagram of the second shell in the middle;

[0014] Figure 9 for Figure 3 A schematic diagram of the first side of the first shell in the middle;

[0015] Figure 10 This is a schematic diagram illustrating another embodiment of this application;

[0016] Figure 11 for Figure 10 A schematic diagram of the first shell in the middle;

[0017] Figure 12 for Figure 10 Explosion-proof diagram of the middle distributor;

[0018] Figure 13 This is a schematic diagram illustrating another embodiment of the present application;

[0019] Figure 14 for Figure 13 Explosion-proof diagram of the middle distributor;

[0020] Figure 15 A schematic diagram illustrating another embodiment of this application.

[0021] Figure 16 for Figure 15 Explosion-proof diagram of the middle distributor;

[0022] Figure 17 for Figure 1 A schematic diagram of the central distributor being mounted on the dishwasher door panel;

[0023] Figure 18 Figure 17 A magnified schematic diagram of region D in the middle.

[0024] Figure label:

[0025] 1. First housing; 2. Second housing; 3. Third housing; 4. Fixing part; 41. Snap-fit ​​end; 5. First sealing element; 6. Transition fit structure; 7. Adding nozzle; 8. Dispensing port; 9. Receiving groove; 600. General housing; 601. First clearance space;

[0026] 11. First dispensing groove; 111. First sub-section; 12. First dispensing cavity; 13. Body; 14. Flange; 141. First groove; 15. Threaded hole; 16. First side; 17. Second side; 21. Second dispensing cavity; 22. Connecting mating part; 221. Connecting mating through hole; 23. Third clearance space; 61. First transition mating part; 611. Transition through hole; 612. First flange; 62. Second transition mating part; 621. Connecting hole; 622. Second flange; 63. Receiving groove; 64. Second seal;

[0027] 100, First cover; 200, Second cover; 300, Rotating component; 301, Rotating shaft; 302, Snap-fit ​​arm; 400, Distributor; 500, Dishwasher door panel. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the present invention clearer, the specific embodiments are further described below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] like Figures 1-9 , Figure 17 and Figure 18 As shown, a dispenser 400 includes a first housing 1 and a universal housing 600. The universal housing 600 includes a second housing 2 and a third housing 3. The second housing 2 is located between the first housing 1 and the third housing 3. The first housing 1 has a first dispensing groove 11, and the first dispensing groove 11 has a first dispensing cavity 12 for containing powder or solid dispensing agents, such as dishwashing powder or dishwashing powder blocks. The second housing 2 and the third housing 3 are sealed and fixed (specifically, sealed and fixed by fusion welding). The universal housing 600 has a second dispensing cavity 21 located between the second housing 2 and the third housing 3 for containing liquid materials, such as dishwashing liquid. The first housing 1 is connected to the universal housing 600.

[0030] Since the universal housing 600 has a second injection cavity located between the second housing and the third housing, the overall structure and size of the second injection cavity are fixed and do not need to be changed with the modification of the first housing. This saves on the modification of the second housing and the third housing and their corresponding tooling molds, thereby saving on modification costs.

[0031] The first housing has a first side 16 facing the general housing 600. The portion of the first delivery slot located on the first side is defined as the first section 111. The general housing 600 has a first clearance space 601 for accommodating the first section 111. The volume of the first clearance space 601 is larger than the volume of the first section 111. When the position and size of the first section 111 are changed, the first clearance space 601 has the capacity to accommodate the changes in the first section 111, rather than requiring complete redesign, thereby reducing the cost of such changes.

[0032] In this embodiment, along the thickness direction of the dispenser, the first clearance space 601 penetrates through the second and third housings. Thus, the first clearance space 601 provides a large volume for the first portion 111, improving the adaptability of the universal housing 600.

[0033] In some embodiments, the first clearance space 601 penetrates the second housing along the thickness direction of the distributor, but does not penetrate the third housing. Instead, a portion of the first clearance space 601 is formed by a recess in the third housing. Alternatively, the first clearance space 601 may not penetrate the second and third housings, but is formed by a recess in the second housing. In this way, the third housing or the second housing can protect the first portion 111, while also preventing liquids present between the first housing and the universal housing 600 (in case of an accident, liquids may exist between the first housing and the universal housing 600) from flowing further into other areas through the first clearance space 601, causing corrosion or damage to the electrical wiring.

[0034] The first housing 1 is fixedly connected to the general housing 600. Furthermore, the first housing and the general housing 600 can be detachably fixedly connected, specifically by screws or by snap-fit.

[0035] In this embodiment, the first housing 1 and the second housing 2 are detachably connected. Specifically, the dispenser 400 has a fixing part 4, and both ends of the fixing part 4 are fixedly connected to the first housing 1 and the second housing 2 respectively. The fixing part 4 can be a screw or a bolt. The first housing 1 is provided with a threaded hole 15 adapted to the screw. The threaded hole 15 is located on the side of the first housing 1 facing the second housing 2. From the direction of the universal housing 600 towards the first housing, the screw passes through the universal housing 600. Specifically, the universal housing 600 has a connecting mating part, and the screw passes through the connecting mating part. In this embodiment, the connecting mating part is located in the second housing. The connecting mating part has a connecting mating through hole, which is separated from the second dispensing cavity. Part of the screw passes through the connecting mating through hole and is then threadedly connected to the threaded hole 15 of the first housing 1, thus realizing the detachable connection between the first housing 1 and the universal housing 600. The threaded hole 15 of the first housing 1 is a slot with an opening facing the second housing 2, rather than a through hole. In this way, the first housing 1 protects the screw, so that the humid environment inside the dishwasher cavity will not corrode the screw. At the same time, it can also prevent moisture inside the dishwasher cavity from entering the inside cavity of the dishwasher door panel 500 through the first housing 1, thereby protecting the electrical circuits inside the dishwasher cavity. The screw passes through the universal housing 600 towards the first housing and is threaded into the threaded hole of the first housing, rather than passing through the first housing towards the universal housing 600 and being fixedly connected to the universal housing 600. This serves several purposes: firstly, it protects the integrity and aesthetics of the side of the first housing facing away from the universal housing 600 (which is also the side that needs to interact with the user); secondly, it prevents the screw head from acting on the first housing, which could cause the first housing to be squeezed (leading to deformation or even cracks that could damage the first housing); and thirdly, because the through hole of the second housing used to mate with the screw is separated from the second dispensing cavity, when the first and second housings are fixedly connected by the screw, the screw tightening force will not act on the second dispensing cavity, thus protecting the second dispensing cavity. Finally, the first housing can protect the screw, preventing the humid environment inside the dishwasher from corroding the screw.

[0036] Compared to the solutions in the prior art, the first housing and the general housing 600 are connected by screws, making them detachable. When the first housing is damaged, it can be directly replaced without replacing the entire dispenser, thus saving maintenance costs. In contrast, the dispenser in the prior art cannot be directly connected by screws to fix the upper and lower housings because the chamber structure for containing the brightener is complex. The upper and lower housings need to be fused together to form multiple partition walls that connect the upper and lower housings in the chamber to separate multiple sub-chambers. If the upper and lower housings are directly connected by screws, there will be gaps between the partition walls and the upper or lower housing, causing liquid to flow between the chambers and making it impossible to reliably separate the sub-chambers.

[0037] A first plane is defined, perpendicular to the thickness direction of the distributor. Along the thickness direction of the distributor, the area enclosed by the orthographic projection of the outer periphery of the universal housing 600 onto the first plane is denoted as S3. Along the thickness direction of the distributor, the area of ​​the connecting mating part projected onto the first plane is denoted as S1. The ratio of S1 to S3 is greater than or equal to 0.018. When the ratio of S1 to S3 is less than 0.018, the possibility of the first housing and the universal housing 600 detaching during use increases significantly. A ratio of S1 to S3 greater than or equal to 0.018 ensures the area of ​​S1, i.e., the area of ​​the connecting mating part, thereby helping to ensure the reliability of the fit between the fixing part and the connecting mating part, and reducing the possibility of the first housing and the universal housing 600 detaching during use.

[0038] Along the thickness direction of the dispenser, the area of ​​the wall corresponding to the opening of the first clearance space 601 facing the first housing, projected onto the first plane, is S2. The ratio of S2 to S3 is greater than or equal to 0.143. When the ratio of S2 to S3 is less than 0.143, to ensure the compatibility of the volume of the first dispensing cavity and the first clearance space 601, the wall thickness of the first section 111 is reduced. During use, the probability of damage to the first section 111 increases significantly. The ratio of S2 to S3 is greater than or equal to 0.143, thus ensuring the wall thickness of the first section 111 while maintaining the compatibility of the volume of the first dispensing cavity and the first clearance space 601, thereby improving product reliability.

[0039] The ratio of S1 + S2 to S3 is less than or equal to 0.255. Since the increased area of ​​the opening of the first clearance space 601 toward the first housing and the connecting mating part will correspondingly encroach on the volume of the second delivery cavity, limiting the ratio of S1 + S2 to S3 is beneficial to ensuring the volume of the second delivery cavity, and thus beneficial to ensuring the reliable realization of the basic functions of the second delivery cavity.

[0040] The dispenser 400 has a first seal 5; the first housing 1 has a body portion 13 and a flange portion 14. The first seal 5 is located on the outer periphery of the body portion 13 and covers and seals the connection between the body portion 13 and the second housing 2. The first seal 5 is used for sealing and abutting the dishwasher door panel 500. The fixing part 4 is located in the area surrounded by the first seal 5. Sometimes there may be a gap at the connection between the body portion 13 and the second housing 2. Since the first seal 5 covers and seals the connection between the body portion 13 and the second housing 2, it can prevent moisture in the dishwasher cavity from entering the cavity between the first housing 1 and the second housing 2 through the connection between the body portion 13 and the second housing 2. The fixing part 4 is located in the area surrounded by the first seal 5. This can prevent the fixing part 4 and related components that cooperate with the fixing part 4 from hindering the sealing fit between the dispenser 400 and the dishwasher door panel 500.

[0041] The flange portion 14 is located on the outer periphery of the body portion 13. The flange portion 14 has a first groove 141. The opening of the first groove 141 faces the second housing 2. A portion of the first seal 5 is confined within the first groove 141, and the other portion of the first seal 5 is exposed outside the first groove 141. The portion of the first seal 5 located in the first groove 141 is press-fitted with the corresponding wall of the first groove 141. Thus, the first groove 141 limits the first seal 5. The portion of the first seal 5 exposed outside the first groove 141 is used to seal against the dishwasher door panel, thereby preventing moisture from entering the dishwasher door panel 500 from the mounting point of the dispenser 400 on the dishwasher door panel 500, thus protecting the electrical wiring located inside the dishwasher door panel 500.

[0042] The distributor 400 has a transition fit structure 6, which includes a first transition fit portion 61 and a second transition fit portion 62. The first transition fit portion 61 is located in the first housing 1, and the second transition fit portion 62 is located in the second housing 2, with the second transition fit portion 62 located on the side of the second housing 2 facing the first housing 1. The first transition fit portion 61 has a transition through hole 611 that penetrates the body of the first transition fit portion 61 along the thickness direction of the first housing 1, and the second transition fit portion 62 has a connecting hole 621, with the transition through hole 611 communicating with the connecting hole 621.

[0043] The first transition fitting part 61 has a first flange 612, which is located on the side of the first housing 1 facing the second housing 2, and the first flange 612 surrounds the opening at one end of the transition through hole 611, or one opening of the transition through hole 611 is located at the end of the first flange 612; the distributor 400 has a second seal 64; the second transition fitting part 62 has a second flange 622; one of the first flange 612 and the second flange 622 has a receiving groove 63, part or all of the second seal 64 is located in the receiving groove 63, and the other of the first flange 612 and the second flange 622 is in sealing contact with the second seal 64.

[0044] In this way, the first flange 612 and the second flange 622 are sealed together, thereby preventing moisture from entering the cavity between the first housing 1 and the second housing 2 through the area between the first transition fit part 61 and the second transition fit part 62.

[0045] In this embodiment, the second seal 64 is entirely located in the receiving groove 63, and a portion of one of the first flange 612 and the second flange 622 is located in the receiving groove 63 and seals against the second seal 64. In this way, the second seal 64 can form multiple surfaces after being compressed, which helps to improve the sealing reliability.

[0046] In some embodiments, the other of the first flange 612 and the second flange 622 is located outside the receiving groove 63 and seals against the second seal 64. In this case, the second seal 64 may be partially exposed in the receiving groove 63 or may be completely located in the receiving groove 63. In this way, the other of the first flange 612 and the second flange 622 does not need to enter the receiving groove 63, which can reduce the precision requirements of processing and assembly, thereby facilitating the improvement of the pass rate of processing and assembly.

[0047] The distributor 400 has multiple transition mating structures 6, and in this embodiment, the number of transition mating structures 6 is three.

[0048] The dispenser 400 has a dispensing nozzle 7. One of the three transition fitting structures 6 has a corresponding transition through hole 611 and a connecting hole 621 forming part of the dispensing nozzle 7. The connecting hole 621 corresponding to the transition fitting structure 6 is connected to the second dispensing chamber 21. Thus, the dispensing nozzle 7 is connected to the second dispensing chamber 21, and liquid materials (such as brightening agent) can enter the second dispensing chamber 21 through the dispensing nozzle 7.

[0049] The first housing has a second side 17 facing away from the general housing 600. Thus, the portion of the transition hole located on the second side can be modified according to customized requirements without altering the structure of the connecting hole, thereby eliminating the need to modify the general housing 600.

[0050] The dispenser 400 has a dispensing port 8. One of the three transition fitting structures 6 has a corresponding transition through hole 611 and a connecting hole 621 forming part of the dispensing port 8. The connecting hole 621 corresponding to the transition fitting structure 6 is connected to the second dispensing cavity 21. In this way, the dispensing port 8 is connected to the second dispensing cavity 21, and the material in the second dispensing cavity 21 can be dispensed through the dispensing port 8.

[0051] Distributor 400 has a receiving groove 9, a rotating member 300, and a first cover 100. The rotating member 300 passes through the second housing 2 and the third housing 3. The first cover 100 is connected to the first housing 1. The rotating member 300 has a rotating shaft 301 and a snap-fit ​​arm 302. The snap-fit ​​arm 302 is connected to the rotating shaft 301. The rotating member 300 can rotate to release the snap-fit ​​arm 302 from the first cover 100. A portion of the snap-fit ​​arm 302 is located in the receiving groove 9. Three transition fits are provided. A corresponding transition through hole 611 and connecting hole 621 in structure 6 form part of the receiving groove 9. The rotating shaft 301 is partially located in the connecting hole 621 corresponding to the transition fit structure 6 and is sealed with the wall corresponding to the connecting hole 621. Along the thickness direction of the distributor 400, the projection of the snap-fit ​​arm 302 on the bottom wall of the receiving groove 9 is defined as the first projection, and the projection of the wall corresponding to the transition through hole 611, which forms part of the receiving groove 9, on the bottom wall of the receiving groove 9 is defined as the second projection. The first projection is located within the second projection. In this way, when it is necessary to remove the first housing 1, interference between the snap-fit ​​arm 302 and the first housing 1 can be avoided, thereby facilitating the smooth removal of the first housing 1.

[0052] The dispenser 400 has a first cover 100 connected to the first housing 1, and the first cover 100 is slidable relative to the first housing 1 in the front-back direction to open or close the first dispensing chamber 12; the dispenser 400 has a second cover 200 connected to the first housing 1, specifically, the second cover 200 is rotatably connected to the first housing 1; the second cover 200 is rotatable relative to the first housing 1 to open or close the dispensing nozzle 7.

[0053] Figures 10 to 12 Another embodiment is shown, in which,

[0054] The fixing part 4 is integrally formed with the first housing 1. The fixing part 4 is located on the side of the first housing 1 facing the second housing 2. The general housing 600 has a connecting mating part 22, which has a connecting mating through hole 221. The connecting mating part 22 is located in the second housing. The fixing part 4 has a snap-fit ​​end 41. Part of the fixing part 4 is located in the connecting mating through hole 221. Part or all of the snap-fit ​​end 41 is exposed in the connecting mating through hole 221 and snaps with the connecting mating part 22. During assembly, the fixing part 4 is inserted from one end of the connecting mating through hole 221, and part or all of the snap-fit ​​end 41 is exposed from the other end of the connecting mating through hole 221, thereby snapping with the connecting mating part 22.

[0055] Since the fixing part 4 is located on the side of the first housing 1 facing the second housing 2 (rather than the side of the first housing 1 facing the dishwasher cavity), the first housing 1 protects the fixing part 4. At the same time, this avoids the first housing 1 from having a connecting and mating through hole 221, thereby preventing moisture in the dishwasher cavity from entering the dishwasher door panel 500 cavity through the first housing 1, thus protecting the electrical circuits located in the dishwasher door panel 500 cavity. Since part or all of the snap-fit ​​end 41 is exposed in the connecting and mating through hole 221, it is convenient to operate the snap-fit ​​end 41 during disassembly, so that the first housing 1 can be separated from the second housing 2.

[0056] In some embodiments, the connecting through hole 221 can be a stepped hole, and the wall corresponding to the stepped hole has a stepped wall, and the snap-fit ​​end 41 snaps into the stepped wall.

[0057] Figure 13 and Figure 14 Another embodiment is shown. In this embodiment, the first housing 1 and the third housing 3 are detachably connected. The distributor 400 has a fixing part 4, and the second housing 2 has a third clearance space 23. In this embodiment, the third clearance space 23 is in the form of a through hole. Part of the fixing part 4 is located in the third clearance space 23. Both ends of the fixing part 4 are respectively limited and connected to the first housing 1 and the third housing 3. Specifically, one end of the fixing part 4 passes through the through hole of the third housing 3 and the third clearance space 23 of the second housing 2, and then threadedly engages with the threaded hole 15 of the first housing 1 to achieve a detachable connection between the first housing 1 and the third housing 3. In this way, the fixing part 4 and the first housing 1 are connected by a threaded connection to achieve the connection between the first housing 1 and the third housing 3, which can increase the reliability of the connection.

[0058] Figure 15 and Figure 16Another embodiment is shown. In this embodiment, the first housing 1 and the third housing 3 are detachably connected. The first housing 1 is integrally formed with the fixing part 4. The second housing 2 has a third clearance space 23, which is a through hole in this embodiment. The fixing part 4 passes through the third clearance space 23 and has a snap-fit ​​end 41 that snaps into the third housing 3, thereby achieving a detachable connection between the first housing 1 and the third housing 3. Thus, the fixing part 4 is a snap-fit ​​structure integrally formed with the first housing 1. When assembling with the third housing 3, only the first housing 1 and the third housing 3 need to be snapped together to achieve the connection, thereby simplifying the assembly process.

[0059] The above examples illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A dispenser, characterized in that, The system includes a first housing (1) and a universal housing (600). The universal housing includes a second housing (2) and a third housing (3). The second housing (2) is located between the first housing (1) and the third housing (3). The first housing (1) has a first dispensing groove (11) and a first dispensing cavity (12). The second housing (2) is sealed and fixed to the third housing (3). The universal housing has a second dispensing cavity (21) located between the second housing (2) and the third housing (3). The first housing (1) is connected to the universal housing.

2. The distributor (400) according to claim 1, characterized in that, The first housing has a first side facing the general housing, and the portion of the first dispensing slot located on the first side is defined as a first portion (111); The universal housing has a first clearance space (601), the volume of which is greater than the volume of the first portion, and the first clearance space (601) is used to accommodate the first portion.

3. The distributor (400) according to claim 2, characterized in that, Along the thickness direction of the distributor (400), the first clearance space (601) penetrates the second housing (2) and the third housing; or Along the thickness direction of the distributor (400), the first clearance space (601) penetrates the second housing (2), and a recess formed by the partial inward indentation of the third housing constitutes part of the first clearance space; or The first clearance space is a groove formed by the inner recess of the second shell.

4. The distributor (400) according to claim 1, characterized in that, A first plane is defined, which is perpendicular to the thickness direction of the dispenser. The area of ​​the region enclosed by the orthographic projection of the outer periphery of the universal housing onto the first plane along the thickness direction of the dispenser is S3. Along the thickness direction of the distributor, the area of ​​the wall corresponding to the opening of the first housing in the first clearance space projected onto the first plane is S2, and the ratio of S2 to S3 is greater than or equal to 0.

143.

5. The distributor (400) according to claim 1, characterized in that, The dispenser (400) has a fixing part (4); The two ends of the fixing part (4) are respectively connected to the first housing (1) and the general housing; or The first housing (1) is integrally formed with the fixing part (4), and the universal housing is connected to the fixing part (4).

6. The distributor (400) according to claim 5, characterized in that, The first housing has a threaded hole portion located on the side of the first housing facing the universal housing, and the universal housing has a connecting mating portion (22); from the direction of the universal housing towards the first housing, the fixing portion passes through the connecting mating portion and is threadedly connected to the threaded hole portion.

7. The distributor (400) according to claim 5, characterized in that, The fixing part (4) is integrally formed with the first housing (1), and the fixing part (4) is located on the side of the first housing (1) facing the second housing (2); The universal housing has a connecting part (22), and the connecting part (22) has a connecting through hole (221); The fixing part (4) has a snap-fit ​​end (41); A portion of the fixing part (4) is located in the connecting through hole (221); At least a portion of the snap-fit ​​end (41) is exposed in the connecting through hole (221) and snaps into the connecting part (22); or The connecting through hole (221) is a stepped hole, and the wall corresponding to the stepped hole has a stepped wall. The snap-fit ​​end (41) snaps into the stepped wall.

8. The dispenser (400) according to claim 6 or 7, characterized in that, A first plane is defined, which is perpendicular to the thickness direction of the dispenser. The area of ​​the region enclosed by the orthographic projection of the outer periphery of the universal housing onto the first plane along the thickness direction of the dispenser is S3. Along the thickness direction of the distributor, the area of ​​the connecting mating part projected onto the first plane is S1, and the ratio of S1 to S3 is greater than or equal to 0.018; and / or The first housing has a first side facing the universal housing. The portion of the first dispensing slot located on the first side is defined as a first section. The universal housing has a first clearance space (601) for accommodating the first section. Along the thickness direction of the dispenser, the area of ​​the wall corresponding to the opening of the first clearance space facing the first housing projected onto the first plane is S2. The ratio of S2 to S3 is greater than or equal to 0.143; and / or The first housing has a first side facing the universal housing. The portion of the first dispensing slot located on the first side is defined as a first part. The universal housing has a first clearance space (601) for accommodating the first part. Along the thickness direction of the dispenser, the area of ​​the wall corresponding to the opening of the first clearance space facing the first housing projected onto the first plane is S2. Along the thickness direction of the dispenser, the area of ​​the connecting mating part projected onto the first plane is S1. The ratio of the sum of S1 and S2 to S3 is less than or equal to 0.

255.

9. The distributor (400) according to claim 5, 6, 7, or 8, characterized in that, The dispenser (400) has a first seal (5); The first housing (1) has a body portion (13), the first sealing member (5) is located on the outer periphery of the body portion (13), and the first sealing member (5) covers and seals the connection between the body portion (13) and the second housing (2), and the fixing portion (4) is located in the area surrounded by the first sealing member (5); and / or The first housing (1) has a body portion (13) and a flange portion (14). The flange portion (14) is located on the outer periphery of the body portion (13). The flange portion (14) has a first groove (141). The opening of the first groove (141) faces the second housing (2). A portion of the first seal (5) is confined within the first groove (141), and another portion of the first seal (5) is exposed in the first groove (141).

10. The distributor (400) according to claim 1, characterized in that, The dispenser (400) has a transition fit structure (6), which includes a first transition fit part (61) and a second transition fit part (62); The first transition fitting part (61) is located in the first housing (1), the second transition fitting part (62) is located in the second housing (2), and the second transition fitting part (62) is located on the side of the second housing (2) facing the first housing (1); The first transition fitting part (61) has a transition through hole (611) that penetrates the body of the first transition fitting part (61) along the thickness direction of the first housing (1), and the second transition fitting part (62) has a connecting hole (621), wherein the transition through hole (611) communicates with the connecting hole (621).

11. The dispenser (400) according to claim 10, characterized in that, The first transition fitting part (61) has a first flange (612), the first flange (612) is located on the side of the first housing (1) facing the second housing (2), and the first flange (612) surrounds the opening at one end of the transition through hole (611), or one opening of the transition through hole (611) is located at the end of the first flange (612). The dispenser (400) has a second seal (64); The second transition mating part (62) has a second flange (622); One of the first flange (612) and the second flange (622) has a receiving groove (63), at least a portion of the second seal (64) is located in the receiving groove (63), and the other of the first flange (612) and the second flange (622) is in sealing contact with the second seal (64).

12. The dispenser (400) according to claim 10, characterized in that, The distributor (400) has multiple transition fit structures (6); The dispenser (400) has a feeding nozzle (7) communicating with the second dispensing cavity (21), and a corresponding transition through hole (611) and connecting hole (621) in one of the plurality of transition fit structures (6) constitute part of the feeding nozzle (7); and / or The dispenser (400) has a dispensing port (8) that communicates with the second dispensing cavity (21), and a corresponding transition through hole (611) and a connecting hole (621) in one of the plurality of transition fitting structures (6) constitute a part of the dispensing port (8); and / or The dispenser (400) has a receiving groove (9), a rotating component (300), and a first cover (100). The rotating component (300) passes through the second housing (2) and the third housing (3). The first cover (100) is connected to the first housing (1). The rotating component (300) has a rotating shaft (301) and a snap-fit ​​arm (302). The snap-fit ​​arm (302) is connected to the rotating shaft (301). The rotating component (300) can... Rotation releases the snap-fit ​​arm (302) from the first cover (100). A portion of the snap-fit ​​arm (302) is located in the receiving groove (9). A corresponding transition through hole (611) and a connecting hole (621) in one of the plurality of transition fit structures (6) constitute a part of the receiving groove (9). A portion of the rotating shaft (301) is located in the corresponding connecting hole (621) of the transition fit structure (6) and is sealed to the wall corresponding to the connecting hole (621).

13. The distributor (400) according to any one of claims 1 to 12, characterized in that, The dispenser (400) has a first cover (100) connected to the first housing (1), and the first cover (100) is slidable relative to the first housing (1) in the front-back direction, thereby opening or closing the first dispensing cavity (12); and / or The dispenser (400) has a second cover (200) connected to the first housing (1), the first housing (1) having an adding nozzle (7) for communicating with the second receiving cavity, and the second cover (200) being able to open or close the adding nozzle (7).

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