Distributor with high sealing performance

Abstract

The utility model provides a distributor with high sealing performance, which belongs to the technical field of distributors and comprises a shell, a medium inlet pipeline, at least two medium outlet pipelines, a distribution assembly, a driving motor and a connecting piece, the shell is provided with a containing cavity, the distribution assembly is used for distributing and adjusting media entering the containing cavity from the medium inlet pipeline, and then the media flow to the medium outlet pipelines. The driving motor is used for driving the distribution assembly to carry out distribution adjustment and comprises a driving shaft, the connecting piece is rotationally arranged in the shell, a first sealing structure is arranged between the connecting piece and the shell, the driving motor is installed on the shell, the driving shaft extends into the shell to be connected with the connecting piece, and a second sealing structure is arranged between the driving shaft and the shell; the first sealing structure and the second sealing structure are both located between the medium inlet pipeline and the driving motor. According to the distributor, double sealing is achieved, the phenomenon that a medium in the containing cavity flows to the driving motor to damage the driving motor is avoided, and the service life of the distributor is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of distributors, in particular to a distributor with high sealing performance. Background Art

[0002] The distributor is an important accessory for controlling the flow of media on industrial pipelines. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Driven by the four major forces of industrialization, urbanization, reform and globalization, the prospects for my country's distributor equipment manufacturing industry are becoming increasingly broad. In the future, the high-end, localized and modernized distributor industry will be the main direction of the development of the distributor industry.

[0003] Based on market feedback, the applicant has found that the existing distributor has poor sealing effect on the side close to the motor. Especially after long-term use, the seal fails and the medium flows to the motor, causing damage to the motor, thereby rendering the distributor inoperative. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a distributor with high sealing performance.

[0005] The technical solution adopted by the utility model is as follows: a highly sealed distributor, comprising:

[0006] A housing having a cavity;

[0007] A medium inlet pipeline, wherein the medium inlet pipeline is in communication with the containing cavity;

[0008] At least two medium outlet pipes, the medium outlet pipes are connected to the cavity;

[0009] A distribution component, the distribution component is used to distribute and regulate the medium entering the cavity from the medium inlet pipe and then flowing it to the medium outlet pipe;

[0010] A drive motor, the drive motor is used to drive the dispensing component to adjust the dispensing, and the drive motor includes a drive shaft;

[0011] A connecting piece, wherein the connecting piece is rotatably disposed in the housing and a first sealing structure is disposed between the connecting piece and the housing;

[0012] Wherein, the driving motor is mounted on the shell, the driving shaft extends into the shell and is connected to the connecting piece, and a second sealing structure is arranged between the driving shaft and the shell, and the first sealing structure and the second sealing structure are both located between the medium inlet pipeline and the driving motor.

[0013] In some embodiments, the first sealing structure and the second sealing structure each include at least one of an O-shaped sealing ring, a V-shaped sealing ring, a U-shaped sealing ring, or a Y-shaped sealing ring.

[0014] In some embodiments, the first sealing structure uses a V-shaped sealing ring, and the second sealing structure uses an O-shaped sealing ring.

[0015] In some embodiments, the drive motor further includes an end cover, the drive shaft extends through the end cover, and the housing is provided with a positioning groove adapted to the end cover.

[0016] The drive shaft comprises:

[0017] A rotating shaft portion, the rotating shaft portion is cylindrical, a first mounting groove adapted to the rotating shaft portion is provided on the housing, and the O-ring is provided between the first mounting groove and the rotating shaft portion;

[0018] The connecting member is provided with a connecting groove matched with the connecting shaft. When the connecting shaft is inserted into the connecting groove, the connecting member rotates with the driving shaft.

[0019] In some embodiments, a second mounting groove is provided on the connecting member, and the V-shaped sealing ring is disposed in the second mounting groove, with its open end facing away from the driving motor.

[0020] In some embodiments, a drainage hole is provided on the shell, and the drainage hole is located between the first sealing structure and the second sealing structure.

[0021] In some embodiments, the dispensing assembly comprises:

[0022] An adjusting disk, the adjusting disk is connected to the connecting member and rotates with the connecting member, and an adjusting opening is provided on the adjusting disk, and the adjusting opening passes through the adjusting disk;

[0023] A distribution plate, wherein a distribution port is provided on the distribution plate, and the distribution port is connected to at least one medium outlet pipe;

[0024] The adjustment disk can be rotated so that the adjustment opening has a connecting position at least partially overlapping with the dispensing opening and a blocking position not overlapping with the dispensing opening during the movement.

[0025] In some embodiments, a spring is provided between the adjusting disk and the connecting member, and the spring is used to press the adjusting disk against the distributing disk.

[0026] In some embodiments, there are at least two regulating ports, and the flow rates of the regulating ports are the same, or different, or at least partially the same.

[0027] In some embodiments, the distribution port is connected to at least one medium outlet pipe to form a distribution flow channel, and there are at least two distribution flow channels, and multiple distribution flow channels can be disconnected at the same time, or at least one channel is connected.

[0028] The beneficial effects of the present invention are as follows: in the present invention, double sealing is achieved by providing a first sealing structure and a second sealing structure, thereby preventing the medium in the cavity from flowing to the drive motor and causing damage to the drive motor, and greatly extending the service life of the dispenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0030] Figure 1 It is a schematic diagram of the utility model;

[0031] Figure 2 It is an exploded view of the utility model;

[0032] Figure 3 It is a cross-sectional view of the utility model;

[0033] Figure 4 It is a schematic diagram of the driving motor in the utility model;

[0034] Figure 5 Schematic diagram of the connecting piece in the utility model Figure 1 ;

[0035] Figure 6 Schematic diagram of the connecting piece in the utility model Figure 2 ;

[0036] Figure 7 It is a schematic diagram of the adjustment disk in the utility model;

[0037] Figure 8 It is a schematic diagram of the distribution plate in the utility model. DETAILED DESCRIPTION

[0038] The following description provides specific application scenarios and requirements of this specification, with the purpose of enabling those skilled in the art to make and use the contents of this specification. Various local modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0039] In the description of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "transverse", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0040] Secondly, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components and should not be understood as limitations on the embodiments of the present application.

[0041] In addition, the terms "installed", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components.

[0042] For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the description of the present application, "X includes at least one of A, B or C" means that X includes at least A, or X includes at least B, or X includes at least C. That is, X may include only any one of A, B, and C, or may include any combination of A, B, and C and other possible contents / elements at the same time. The any combination of A, B, and C may be A, B, C, AB, AC, BC, or ABC.

[0044] Regarding the drawings of the present application, it should be clearly understood that the drawings are for illustration and description purposes only and are not intended to limit the scope of the present specification. It should also be understood that the drawings are not drawn to scale.

[0045] Embodiment 1:

[0046] The applicant has found that in the existing liquid dispensers, the driving motor is generally connected to one end of the shell, and in order to prevent liquid leakage from causing damage to the driving motor, a sealing structure is usually provided at the connection between the driving motor and the shell, and most of the time a sealing ring is used. However, with only such a single sealing structure, the sealing reliability is still poor, especially when used for a long time, the liquid is still easy to leak toward the driving motor. Therefore, the applicant proposes a highly sealed dispenser to completely solve this problem.

[0047] like Figures 1 to 8 As shown, a highly airtight dispenser comprises:

[0048] A housing 1, wherein the housing 1 has a cavity 101;

[0049] The medium inlet pipeline 2 is communicated with the cavity 101 and can be integrally formed with the shell 1 or assembled with the shell 1 ; the medium flows into the cavity 101 through the medium inlet pipeline 2 .

[0050] At least two medium outlet pipes 3 are connected to the containing cavity 101 ; in the present embodiment, there are five medium outlet pipes 3 , three of which are arranged vertically and two are arranged horizontally.

[0051] A distribution component 4, which is used to distribute and regulate the medium entering the chamber 101 from the medium inlet pipe 2, and then flows to the medium outlet pipe 3;

[0052] The driving motor 5 is used to drive the dispensing assembly 4 for dispensing and adjustment, and includes a driving shaft 51 and an end cover 52 ; the driving shaft 51 extends through the end cover 52 , and a positioning groove 102 adapted to the end cover 52 is provided on the housing 1 .

[0053] The connecting member 6 is rotatably disposed in the housing 1, and the driving motor 5 is connected to the distribution assembly 4 through the connecting member 6, so that the overall disassembly, repair and maintenance are more convenient, and it is also beneficial to the setting of the sealing structure.

[0054] The driving motor 5 is mounted on the housing 1, and the driving shaft 51 extends into the housing 1 and is connected to the connecting member 6. Specifically, Figure 4 and Figure 5 As shown, the driving shaft 51 includes: a rotating shaft portion 511 and a connecting shaft portion 512, the rotating shaft portion 511 is cylindrical, the shell 1 is provided with a first mounting groove 103 adapted to the rotating shaft portion 511, the connecting shaft portion 512 has various shapes, such as a polygon, and the connecting member 6 is provided with a connecting groove 61 adapted to the connecting shaft portion 512. Of course, the connecting shaft portion 512 and the connecting member 6 can also be connected by a key connection or other structure. It is mainly necessary to ensure that when the connecting shaft portion 512 is inserted into the connecting groove 61, the connecting member 6 rotates with the driving shaft 51.

[0055] In this embodiment, a first sealing structure 7 is provided between the connecting member 6 and the shell 1, and a second sealing structure 8 is provided between the driving shaft 51 and the shell 1. The first sealing structure 7 and the second sealing structure 8 are both located between the medium inlet pipeline 2 and the driving motor 5. Double sealing is achieved through this arrangement. The first sealing structure 7 first prevents the medium from leaking at the rotational fit between the connecting member 6 and the shell 1. If there is leakage, the second sealing structure 8 prevents the medium from leaking between the rotating shaft portion 511 and the end cover 52, thereby avoiding the medium from flowing into the interior of the driving motor 5, preventing the driving motor 5 from being damaged, and greatly extending the service life of the dispenser.

[0056] Specifically, the first sealing structure 7 is arranged between the first mounting groove 103 and the rotating shaft portion 511, and a second mounting groove 62 is arranged on the connecting member 6, wherein the second mounting groove 62 is an annular groove arranged on the circumferential outer wall of the connecting member 6, and the second sealing structure 8 is arranged between the second mounting groove 62 and the shell 1, that is, a rotating seal is formed between the outer wall of the connecting member 6 and the inner wall of the cavity 101.

[0057] Among them, the first sealing structure 7 and the second sealing structure 8 both include at least one of an O-ring, a V-ring, a U-ring or a Y-ring. Generally, a suitable sealing ring can be selected at the sealing structure according to actual needs, or multiple identical sealing rings can be used in combination, or multiple sealing rings can be used in combination.

[0058] In this embodiment, preferably, the first sealing structure 7 uses a V-shaped sealing ring, which is arranged in the second installation groove 62, and the open end of the V-shaped sealing ring abuts against the two respectively, and faces away from the drive motor 5, so that after the medium flows into the cavity 101 from the medium inlet pipe 2, when the medium flows to the drive motor 5, the open end of the V-shaped sealing ring is further expanded, so that it abuts against the housing 1 and the connecting piece 6 more closely, and has better sealing performance. There is just enough installation space here, and as the main sealing structure, a V-shaped sealing ring with better sealing performance is used.

[0059] Among them, the V-ring is an annular seal with a V-shaped cross section. The main feature of the V-ring is that when the ring wall is compressed, the sealing force will make it wrap more tightly around the shaft, thereby improving the sealing performance and wear resistance. The seal is usually made of materials such as rubber, polyurethane, and electrostatic coating.

[0060] Preferably, the second sealing structure 8 uses an O-ring, which is arranged between the first mounting groove 103 and the rotating shaft portion 511 and abuts against both of them respectively; wherein the O-ring is one of the most commonly used rotating sealing rings, usually made of elastic materials such as silicone and nitrile rubber, and has the advantages of good compression deformation, oil resistance and temperature resistance. The cross section of the O-ring is circular, and the interface with the shaft is compressed to form a seal. The installation space is limited here, and as a secondary sealing structure, a low-cost O-ring is used.

[0061] Furthermore, a drainage hole 104 is provided on the shell 1, and the drainage hole 104 is located between the first sealing structure 7 and the second sealing structure 8. The drainage hole 104 can be arranged close to the first sealing structure 7. In this way, if the first sealing structure 7 fails or the sealing effect is reduced, the drainage hole 104 can discharge the medium to prevent the secondary second sealing structure 8 from failing to protect the drive motor 5. At the same time, it can also be used to discharge the remaining water from the cavity 101 to prevent the cavity 101 from having residual water for a long time and causing rust and corrosion.

[0062] In this embodiment, the distribution component 4 includes: an adjusting disk 41 and a distribution disk 42. The adjusting disk 41 is connected to the connecting member 6 and rotates with the connecting member 6. In this embodiment, the lower part of the adjusting disk 41 is a connecting shaft, and a positioning protrusion is provided on the connecting shaft. The distribution disk 42 is provided with a through hole for inserting the connecting shaft and a positioning groove adapted to the positioning protrusion.

[0063] The regulating disk 41 is provided with a regulating port 411, and the regulating port 411 penetrates the regulating disk 41; the distributing disk 42 is provided with a distributing port 421, and the distributing port 421 is connected with at least one medium outlet pipe 3;

[0064] The adjustment disk 41 can rotate so that the adjustment opening 411 has a connection position at least partially overlapping with the distribution opening 421 and a blocking position not overlapping with the distribution opening 421 during the movement.

[0065] Among them, the number of regulating ports 411 and 411 can be adjusted according to actual needs to realize different control functions of the distributor. For example, one regulating port 411 is matched with one distribution port 421, or one regulating port 411 is matched with multiple distribution ports 421, or there are at least two regulating ports 411, and the flow rate of each regulating port 411 is the same, or different, or at least partially the same. In this way, the functions of the distributor are more diversified and the scope of application is wider.

[0066] The distribution port 421 is connected to at least one medium outlet pipe 3 to form a distribution channel. There are at least two distribution channels, and multiple distribution channels can be disconnected at the same time, or at least one channel can be opened, so that different distributions can be achieved according to different needs.

[0067] Furthermore, a spring 9 is provided between the adjusting disk 41 and the connecting member 6, and the spring 9 is used to press the adjusting disk 41 against the distribution disk 42, so that an effective seal is formed between the adjusting disk 41 and the distribution disk 42, and at the same time, it is beneficial for the adjusting disk 41 to rotate relative to the distribution disk 42 when the distribution component is adjusted.

[0068] In summary, after reading this detailed disclosure, it will be apparent to those skilled in the art that the foregoing detailed disclosure may be presented only by way of example and may not be limiting. Although not explicitly stated herein, it will be appreciated by those skilled in the art that the present application requires various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be proposed by the present application and are within the spirit and scope of the exemplary embodiments of the present application.

[0069] In addition, it should be understood that in the foregoing description of the embodiments of the present application, in order to help understand a feature and for the purpose of simplifying the present application, the present application combines various features in a single embodiment, drawing or its description. However, this does not mean that the combination of these features is necessary. When reading the present application, it is entirely possible for a person skilled in the art to mark out a part of the devices as a separate embodiment. In other words, the embodiments in the present application can also be understood as the integration of multiple secondary embodiments. This is also true when the content of each secondary embodiment is less than all the features of a single aforementioned disclosed embodiment.

[0070] Finally, it should be understood that the embodiments of the application disclosed herein are explanations of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Therefore, the embodiments disclosed in the present application are merely examples and not limitations. Those skilled in the art can adopt alternative configurations according to the embodiments in the present application to implement the application in the present application. Therefore, the embodiments of the present application are not limited to the embodiments accurately described in the application.

Claims

1. A highly airtight dispenser, characterized in that: include: A housing (1), wherein the housing (1) has a cavity (101); A medium inlet pipeline (2), wherein the medium inlet pipeline (2) is in communication with the containing cavity (101); At least two medium outlet pipes (3), wherein the medium outlet pipes (3) are in communication with the containing cavity (101); A distribution component (4), the distribution component (4) is used to distribute and regulate the medium entering the chamber (101) from the medium inlet pipe (2) and then flowing the medium to the medium outlet pipe (3); A driving motor (5), the driving motor (5) is used to drive the dispensing component (4) to dispense and adjust, and comprises a driving shaft (51); A connecting member (6), the connecting member (6) being rotatably disposed in the housing (1), and a first sealing structure (7) being disposed between the connecting member (6) and the housing (1); The drive motor (5) is mounted on the housing (1), the drive shaft (51) extends into the housing (1) and is connected to the connecting piece (6), and a second sealing structure (8) is provided between the drive shaft (51) and the housing (1), and the first sealing structure (7) and the second sealing structure (8) are both located between the medium inlet pipeline (2) and the drive motor (5).

2. A highly airtight dispenser according to claim 1, characterized in that: The first sealing structure (7) and the second sealing structure (8) both include at least one of an O-shaped sealing ring, a V-shaped sealing ring, a U-shaped sealing ring or a Y-shaped sealing ring.

3. A highly airtight dispenser according to claim 2, characterized in that: The first sealing structure (7) adopts a V-shaped sealing ring, and the second sealing structure (8) adopts an O-shaped sealing ring.

4. A highly airtight dispenser according to claim 3, characterized in that: The driving motor (5) further comprises an end cover (52), the driving shaft (51) penetrates through the end cover (52) and extends out, and the housing (1) is provided with a positioning groove (102) adapted to the end cover (52); The drive shaft (51) comprises: A rotating shaft portion (511), the rotating shaft portion (511) is cylindrical, a first mounting groove (103) adapted to the rotating shaft portion (511) is provided on the housing (1), and the O-ring is provided between the first mounting groove (103) and the rotating shaft portion (511); The connecting member (6) is connected to the connecting shaft (512), and a connecting groove (61) adapted to the connecting shaft (512) is provided on the connecting member (6). When the connecting shaft (512) is inserted into the connecting groove (61), the connecting member (6) rotates along with the driving shaft (51).

5. A highly airtight dispenser according to claim 3, characterized in that: The connecting member (6) is provided with a second installation groove (62), and the V-shaped sealing ring is arranged in the second installation groove (62), with its open end facing away from the driving motor (5).

6. A highly airtight dispenser according to claim 1, characterized in that: The housing (1) is provided with a drainage hole (104), and the drainage hole (104) is located between the first sealing structure (7) and the second sealing structure (8).

7. A highly airtight dispenser according to claim 1, characterized in that: The dispensing component (4) comprises: An adjusting disk (41), the adjusting disk (41) being connected to the connecting member (6) and rotating along with the connecting member (6), the adjusting disk (41) being provided with an adjusting opening (411), the adjusting opening (411) penetrating the adjusting disk (41); A distribution plate (42), wherein the distribution plate (42) is provided with a distribution port (421), and the distribution port (421) is connected to at least one medium outlet pipe (3); The adjustment disk (41) can rotate so that the adjustment opening (411) has a connection position at least partially overlapping with the distribution opening (421) and a blocking position not overlapping with the distribution opening (421) during the movement.

8. A highly airtight dispenser according to claim 7, characterized in that: A spring (9) is provided between the adjusting disk (41) and the connecting member (6), and the spring (9) is used to press the adjusting disk (41) against the distributing disk (42).

9. A highly airtight dispenser according to claim 7, characterized in that: There are at least two regulating ports (411), and the flow rates of the regulating ports (411) are the same, or different, or at least partially the same.

10. A highly airtight dispenser according to claim 7, characterized in that: The distribution port (421) is connected to at least one medium outlet pipe (3) to form a distribution flow channel, and there are at least two distribution flow channels. Multiple distribution flow channels can be disconnected at the same time, or at least one of them can be connected.

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