Multi-sealing structure of electric water valve

Abstract

The utility model relates to the technical field of electric water valves, and discloses a multiple sealing structure of an electric water valve, which comprises an adjusting assembly, an expansion sealing assembly is movably connected to the outer side of the adjusting assembly, a soft sealing block is fixedly connected to the outer side of the adjusting assembly, and a motor box and an outer protection box are arranged at the top of the adjusting assembly. A water valve body is fixedly installed on the outer side of the adjusting assembly. Through mutual cooperation of the adjusting assembly and the expansion sealing assembly, the outer diameter of the outer side of the expansion sealing assembly can be adjusted through the adjusting assembly according to different inner diameters of the water valve body, the passive adjusting disc rotates in the adjusting process, the expansion sealing assembly expands outwards or shrinks inwards at the limiting position of the expansion sealing assembly, and the size of the sealing structure can be flexibly adjusted according to requirements; and the adjusting range is suitable for the inner diameters of water valves with various special sizes, and the application range is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric water valve field, more specifically to a kind of electric water valve multiple sealing structure. BACKGROUND

[0002] Electric water valve is an important fluid control equipment, mainly through control system to control electric actuator, to realize the movement of valve clack or valve plate control, ultimately reach the purpose of controlling water flow, for realizing the accurate regulation of water pressure, water flow, ensure water quality.

[0003] The sealing assembly used by the existing electric water valve usually needs to be customized according to the inner diameter of the water valve to determine the size of the sealing assembly, and then installed in the fixed position to seal the water valve. The waiting time for parts during production is long, and the time cost during production is high. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of electric water valve multiple sealing structure to solve the problems existing in the above background art.

[0005] The utility model provides the following technical scheme: a kind of electric water valve multiple sealing structure, including adjusting assembly, the outer side of the adjusting assembly is movably connected with expansion sealing assembly, the outer side of the adjusting assembly is fixedly connected with soft sealing block, the top of the adjusting assembly is equipped with motor box and outer protection box, the outer side of the adjusting assembly is fixedly installed with water valve main body, the adjusting assembly includes passive adjusting disc, the bottom of the passive adjusting disc is fixedly connected with middle shaft, the outer side of the middle shaft is movably connected with outer fixed sleeve plate, the expansion sealing assembly is movably connected in the inner side of the outer fixed sleeve plate.

[0006] As a preferred technical scheme of the present application, the passive adjusting disc includes a disc body, an arc-shaped hole is formed in the top of the disc body, and a rack is fixedly connected to the outer side of the disc body.

[0007] As a preferred technical scheme of the present application, the outer fixed sleeve plate includes a plate body, upper limit grooves are formed in the two sides of the plate body, and inner movable grooves are formed in the two sides of the end of the plate body away from the middle shaft.

[0008] As a preferred technical scheme of the present application, the expansion sealing assembly includes a movable push rod, a limit post is fixedly connected to the top of the movable push rod, a limit block is fixedly connected to the top of the limit post, sealing baffles are fixedly connected to the two sides of the movable push rod, extension springs are fixedly connected to the side of the sealing baffles close to the limit post, and sealing arc blocks are fixedly connected to the side of the movable push rod away from the limit post.

[0009] As a preferred technical solution of the present application, a driving gear is movably connected to one side of the top of the outer fixed sleeve, a servo motor is fixedly installed on the top of the driving gear, the motor box is fixedly installed on the outside of the servo motor, the passive adjustment disk and the driving gear are located on the inside of the outer protective box, and a bearing is provided at the connection between the outer fixed sleeve and the driving gear.

[0010] As a preferred technical solution of the present application, the outer teeth of the driving gear mesh with the outer teeth of the rack, and a bearing is provided at the connection between the outer fixed sleeve and the central shaft.

[0011] As a preferred technical solution of the present application, the side of the soft sealing block close to the central axis is fixedly connected to the plate body, the two ends of the soft sealing block away from the central axis are fixedly connected to the sealing arc block, and the two ends of the soft sealing block close to the central axis are fixedly connected to the sealing baffle.

[0012] As a preferred technical solution of the present application, the width of the movable push rod matches the width tolerance of the upper limit groove, the width of the arc hole matches the outer diameter tolerance of the limiting column, and the thickness of the sealing baffle matches the thickness tolerance of the inner movable groove.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The utility model is provided with an adjustment component and an expansion sealing component that cooperate with each other. The outer diameter of the expansion sealing component can be adjusted by the adjustment component according to the different inner diameters of the water valve body. During the adjustment process, the passive adjustment disk rotates and the expansion sealing component expands outward or shrinks inward within its limit. The size of this sealing structure can be flexibly adjusted according to needs. It can adapt to various special-sized water valve inner diameters within its adjustment range, and has a wider range of applications.

[0015] 2. The utility model is provided with an inner movable groove, an expansion sealing assembly and a soft sealing block. During the change of the overall outer diameter, the central structure simultaneously changes in shape. The sealing baffle, the movable push rod and the soft sealing block change synchronously during the outward expansion of the sealing arc block, ensuring that the sealing of the central structure of the device is always maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the state in which the overall structure of the utility model is fixed on the inner side of the water valve body.

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present utility model.

[0019] Figure 4This is a schematic structural diagram of the expansion seal assembly of the present utility model.

[0020] Figure 5 This is a schematic diagram of the outer diameter expansion state of part of the structure of the utility model.

[0021] The accompanying drawings are:

[0022] 1. Water valve body; 2. Adjustment assembly; 201. Passive adjustment disk; 2011. Disk body; 2012. Arc hole; 2013. Rack; 202. External fixed sleeve; 2021. Plate body; 2022. Upper limit slot; 2023. Inner movable slot; 203. Driving gear; 204. Central shaft; 205. Servo motor; 3. Expansion seal assembly; 301. Movable push rod; 302. Limit column; 303. Limit block; 304. Sealing baffle; 305. Sealing arc block; 306. Telescopic spring; 4. Soft sealing block; 5. Motor box; 6. External protective box. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The electric water valve multi-sealing structure involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Reference Figures 1 to 5 The utility model provides an electric water valve multiple sealing structure, including an adjusting component 2, the outer side of the adjusting component 2 is movably connected with an expansion sealing component 3, the outer side of the adjusting component 2 is fixedly connected with a soft sealing block 4, the top of the adjusting component 2 is provided with a motor box 5 and an outer protective box 6, the outer side of the adjusting component 2 is fixedly installed with a water valve body 1, the adjusting component 2 includes a passive adjusting disk 201, the bottom of the passive adjusting disk 201 is fixedly connected with a central axis 204, the outer side of the central axis 204 is movably connected with an outer fixed sleeve 202, and the expansion sealing component 3 is movably connected to the inner side of the outer fixed sleeve 202.

[0025] In a preferred embodiment, the passive adjustment disk 201 includes a disk body 2011 , an arc-shaped hole 2012 is formed on the top of the disk body 2011 , and a rack 2013 is fixedly connected to the outer side of the disk body 2011 .

[0026] In a preferred embodiment, the outer fixed sleeve 202 includes a plate body 2021 , upper limit slots 2022 are defined on both sides of the plate body 2021 , and inner movable slots 2023 are defined on both sides of an end of the plate body 2021 away from the central axis 204 .

[0027] In a preferred embodiment, the expansion sealing assembly 3 comprises a movable push rod 301, the top of the movable push rod 301 is fixedly connected with a limiting column 302, the top of the limiting column 302 is fixedly connected with a limiting block 303, both sides of the movable push rod 301 are fixedly connected with sealing baffles 304, one side of the sealing baffles 304 close to the limiting column 302 is fixedly connected with a telescopic spring 306, and the side of the movable push rod 301 away from the limiting column 302 is fixedly connected with a sealing arc block 305.

[0028] As shown in the drawings, the outer side of the sealing arc block 305 is a deformable soft structure, for example, Figure 5 When the overall outer diameter is expanded, the outer side of the sealing arc block 305 is in the shape of a circle, but there is an error with the actual circle, that is, the cross-sectional surface area is larger than that of a standard circular cross-sectional surface with the same diameter. When the sealing structure is installed inside the water valve body 1, the excess circular part will be extruded by the inner wall of the water valve body 1 to deform, thereby increasing the friction generated and improving the sealing performance. The sealing arc block 305 and the outer side of the soft sealing block 4 are more closely connected with the inner wall of the water valve body 1, and the sealing performance is higher.

[0029] In a preferred embodiment, one side of the top of the outer fixed sleeve plate 202 is movably connected with a driving gear 203, the top of the driving gear 203 is fixedly installed with a servo motor 205, a motor box 5 is fixedly installed outside the servo motor 205, the passive adjusting disc 201 and the driving gear 203 are located inside an outer protective box 6, and the outer fixed sleeve plate 202 is provided with a bearing at the connection with the driving gear 203; the outer protective box 6 protects the passive adjusting disc 201 and the driving gear 203, and the motor box 5 protects the servo motor 205.

[0030] In a preferred embodiment, the outer teeth of the driving gear 203 and the outer teeth of the rack 2013 are in meshing relationship, and the outer fixed sleeve plate 202 is provided with a bearing at the connection with the middle shaft 204; the rack 2013 is fixedly connected with the disc body 2011, that is, the disc body 2011 is driven to rotate synchronously, as shown in the drawings, Figure 2 Since the outer teeth of the driving gear 203 and the passive adjusting disc 201 are in a multiple relationship, the angle change of the passive adjusting disc 201 can be accurately controlled when the driving gear 203 rotates.

[0031] In a preferred embodiment, the side of the soft sealing block 4 close to the central axis 204 is fixedly connected to the plate body 2021, the two ends of the soft sealing block 4 away from the central axis 204 are fixedly connected to the sealing arc block 305, and the two ends of the soft sealing block 4 close to the central axis 204 are fixedly connected to the sealing baffle 304; in this process, since the four sides of the soft sealing block 4 are fixedly connected to the sealing baffle 304, the sealing arc block 305 and the plate body 2021 respectively, the soft sealing block 4 is stretched and deformed during the movement of the expansion sealing assembly 3, thereby filling the gaps in the central structure caused by the change in the overall outer diameter.

[0032] In a preferred embodiment, the width of the movable push rod 301 matches the width tolerance of the upper limit groove 2022, the width of the arc hole 2012 matches the outer diameter tolerance of the limiting column 302, and the thickness of the sealing baffle 304 matches the thickness tolerance of the inner movable groove 2023; the movable push rod 301 makes a linear motion along the direction of the upper limit groove 2022, and under the joint limitation of the upper limit groove 2022 and the arc hole 2012, the movable push rod 301 moves outward along the upper limit groove 2022. During the movement, the sealing baffle 304 housed on the inner side of the inner movable groove 2023 gradually emerges from the inner movable groove 2023 as the movable push rod 301 moves.

[0033] The working principle of the utility model is as follows: when adjusting the outer diameter of the structure, the servo motor 205 is first started to drive the driving gear 203 to rotate. When the driving gear 203 rotates, it will drive the rack 2013 to rotate. The initial state is as follows: Figure 2 As shown, the limiting post 302 is located in the arc hole 2012, closest to the center of the disk body 2011. When the disk body 2011 rotates, the angle of the arc hole 2012 will change accordingly. The limiting post 302 is movably connected to the arc hole 2012 under the limitation of the movable push rod 301 and the limiting block 303. At this time, the movable push rod 301 is limited by the upper limit groove 2022 and the bottom of the outer protective box 6, that is, the movable push rod 301 can only move linearly along the direction of the upper limit groove 2022. Under the common limitation of the upper limit groove 2022 and the arc hole 2012, the movable push rod 301 moves outward along the upper limit groove 2022, as shown in FIG. Figure 5 As shown, during the movement of the expansion sealing component 3, the sealing baffle 304 housed inside the inner movable groove 2023 gradually emerges from the inner movable groove 2023 as the movable push rod 301 moves. During this process, since the four sides of the soft sealing block 4 are fixedly connected to the sealing baffle 304, the sealing arc block 305 and the plate body 2021 respectively, the soft sealing block 4 is stretched and deformed during the movement of the expansion sealing component 3, thereby filling the gaps in the central structure caused by the change in the overall outer diameter.

[0034] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0035] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0036] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electric water valve multi-sealing structure, characterized by: The invention comprises an adjusting component (2), wherein the outer side of the adjusting component (2) is movably connected to an expansion sealing component (3), the outer side of the adjusting component (2) is fixedly connected to a soft sealing block (4), the top of the adjusting component (2) is provided with a motor box (5) and an outer protective box (6), the outer side of the adjusting component (2) is fixedly mounted with a water valve body (1), the adjusting component (2) comprises a passive adjusting disk (201), the bottom of the passive adjusting disk (201) is fixedly connected to a central axis (204), the outer side of the central axis (204) is movably connected to an outer fixed sleeve (202), and the expansion sealing component (3) is movably connected to the inner side of the outer fixed sleeve (202).

2. The electric water valve multi-sealing structure according to claim 1, characterized in that: The passive adjustment disk (201) comprises a disk body (2011), an arc-shaped hole (2012) is provided on the top of the disk body (2011), and a rack (2013) is fixedly connected to the outer side of the disk body (2011).

3. The electric water valve multi-sealing structure according to claim 2, characterized in that: The outer fixed sleeve (202) comprises a plate body (2021), upper limit slots (2022) are provided on both sides of the plate body (2021), and inner movable slots (2023) are provided on both sides of one end of the plate body (2021) away from the central axis (204).

4. The electric water valve multi-sealing structure according to claim 3, characterized in that: The expansion sealing assembly (3) comprises a movable push rod (301), the top of the movable push rod (301) is fixedly connected to a limiting column (302), the top of the limiting column (302) is fixedly connected to a limiting block (303), both sides of the movable push rod (301) are fixedly connected to sealing baffles (304), a side of the sealing baffle (304) close to the limiting column (302) is fixedly connected to a telescopic spring (306), and a side of the movable push rod (301) away from the limiting column (302) is fixedly connected to a sealing arc block (305).

5. The electric water valve multi-sealing structure according to claim 3, characterized in that: A driving gear (203) is movably connected to one side of the top of the outer fixed sleeve (202), a servo motor (205) is fixedly installed on the top of the driving gear (203), the motor box (5) is fixedly installed on the outside of the servo motor (205), the passive adjustment disk (201) and the driving gear (203) are located on the inside of the outer protective box (6), and a bearing is provided at the connection between the outer fixed sleeve (202) and the driving gear (203).

6. The electric water valve multi-sealing structure according to claim 5, characterized in that: The outer teeth of the driving gear (203) and the outer teeth of the rack (2013) are meshed with each other, and a bearing is provided at the connection between the outer fixed sleeve (202) and the central shaft (204).

7. The electric water valve multi-sealing structure according to claim 4, characterized in that: The side of the soft sealing block (4) close to the central axis (204) is fixedly connected to the plate body (2021), the two ends of the soft sealing block (4) away from the central axis (204) are fixedly connected to the sealing arc block (305), and the two ends of the soft sealing block (4) close to the central axis (204) are fixedly connected to the sealing baffle (304).

8. The electric water valve multi-sealing structure according to claim 4, characterized in that: The width of the movable push rod (301) matches the width tolerance of the upper limit groove (2022), the width of the arc hole (2012) matches the outer diameter tolerance of the limit column (302), and the thickness of the sealing baffle (304) matches the thickness tolerance of the inner movable groove (2023).

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