Waterproof valve actuator shell

Abstract

The waterproof valve actuator shell comprises a box bottom and a box cover, the bottom of the box bottom is a closed end, the top of the box bottom is an open end, the box bottom is internally provided with a cavity used for installing electronic elements, and the box cover is provided with a first installation hole allowing a cable to penetrate through and a second installation hole allowing a motor transmission shaft to penetrate through. The box cover is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are respectively communicated with a cavity in the box bottom, the box cover and the box bottom are combined in a fixable manner by arranging a buckle combination part, and a sealing ring is arranged between the outer side wall of the box cover and the inner side wall of the box bottom. The sealing ring can be tightly matched between the box cover and the box bottom, so that the sealing performance between the box cover and the box bottom is higher, water can be prevented from easily entering the actuator when the actuator is used outdoors, the risk that electronic elements in the actuator are damaged after water enters the actuator shell is reduced, the use convenience of a user is further achieved, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of valve actuator, concretely relates to a waterproof valve actuator shell. BACKGROUND

[0002] Electric actuator is a kind of drive device that can provide linear or rotary motion, it uses certain driving energy and works under the action of certain control signal. Actuator uses liquid, gas, electricity or other energy and converts it into driving action through motor, cylinder or other devices. It is mainly divided into three driving modes of partial rotation, multiple rotation and straight stroke. Electric actuator shell is an important part of electric actuator, used for installation and protection of actuator to ensure the work of electric actuator.

[0003] At present, the shell of actuator mainly includes box bottom and box cover, and the box bottom and the box cover are fixed by screwing, the sealing performance of this shell is poor, water is easily entered, electronic components such as circuit board inside the shell are damaged, use cost of user is increased, when the actuator is used outdoors, the user needs to solve the shielding of actuator to prevent water from entering the shell, such as installing waterproof cover or other additional installation on the shell, or cannot be used outdoors, the use range is limited, not only brings inconvenience to user, but also increases use cost. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the above-mentioned deficiencies existing in the prior art, the utility model aims at providing a waterproof valve actuator shell, which has simple structure, firm assembly, good sealing performance and strong water-proof function.

[0005] The utility model discloses a waterproof valve actuator shell, including box bottom and box cover, the bottom of box bottom is closed end, and the top is open end, and the inside has the cavity for installing electronic component, is equipped with the first installation hole of power cable and the second installation hole of motor transmission shaft for passing through on the box cover, and the first installation hole and the second installation hole are communicated with the cavity in the box bottom respectively, the box cover and the box bottom are combined by setting buckle combination portion with fixed form, and the sealing ring is arranged between the box cover outside wall and the box bottom inside wall.

[0006] Preferably, the buckle combination portion includes the clamping block formed on the inside wall of the box bottom and the clamping groove formed on the outside wall of the box cover and matched with the clamping block, the clamping blocks are arranged along the circumferential direction of the inside wall of the box bottom, and the clamping grooves are distributed along the circumferential direction of the outside wall of the box cover, so that the clamping blocks are combined with the clamping grooves after the assembly of the box cover and the box bottom.

[0007] Preferably, the inside wall of the box bottom is provided with a limiting table for abutting against the lower end of the box cover, and the limiting table is located below the clamping block.

[0008] Preferably, the box cover of this utility model includes a cover plate, and the lower end face of the cover plate is provided with a mounting part that can be inserted into the top opening of the box bottom. The mounting part protrudes circumferentially toward the lower end face of the cover plate, and the slot is formed on the outer side wall of the mounting part.

[0009] Preferably, the lower end face of the cover plate of this utility model is further provided with a positioning rod for fixing the electronic components inside the housing. The positioning rod is distributed on both sides of the cover plate, and the mounting part is located outside the positioning rod.

[0010] Preferably, the outer wall of the mounting part of the present invention is further provided with a mounting groove for fixing the sealing ring, and the mounting groove is located above the slot.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: The bottom and the lid of this utility model are fixed by a snap-fit ​​joint so that the sealing ring can be tightly fitted between the lid and the bottom, making the sealing performance between the lid and the bottom stronger. This can prevent the actuator from being easily infiltrated by water when used outdoors, reduce the risk of damage to the internal electronic components after water enters the actuator housing, further improve user convenience, and reduce usage costs. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is an exploded view of the present invention;

[0014] Figure 2 This is a cross-sectional view of the box lid of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0016] The reference numerals used in the above figures are explained as follows:

[0017] 1—Box bottom, 10—Card blocks;

[0018] 2—Lid; 20—Card slot; 21—Limiting platform;

[0019] 3—Cavity;

[0020] 4—First mounting hole;

[0021] 5—Second mounting hole;

[0022] 6—Sealing ring;

[0023] 7—Cover plate;

[0024] 8—Installation section, 80—Installation slot;

[0025] 9—Positioning rod. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Reference Figure 1 , Figure 2 and Figure 3 As shown, a waterproof valve actuator housing includes a bottom 1 and a cover 2. The bottom of the bottom 1 is closed at the bottom and open at the top, with an internal cavity 3 for installing electronic components. The cover 2 has a first mounting hole 4 for a cable to pass through and a second mounting hole 5 for a power supply drive shaft to pass through. The first mounting hole 4 and the second mounting hole 5 communicate with the cavity 3 inside the bottom 1. The cover 2 and the bottom 1 are fixedly connected by a snap-fit ​​joint. A sealing ring 6 is provided between the outer wall of the cover 2 and the inner wall of the bottom 1. The snap-fit ​​joint allows the sealing ring 6 to be tightly fitted between the cover 2 and the bottom 1, resulting in a stronger seal between them. This prevents water from easily entering the actuator when used outdoors, reduces the risk of damage to the internal electronic components after water enters the actuator housing, further improves user convenience, and reduces operating costs.

[0030] To facilitate easy installation between the box bottom 1 and the box lid 2, the snap-fit ​​connection includes a snap block 10 formed on the inner side wall of the box bottom 1 and a snap groove 20 formed on the outer side wall of the box lid 2 that matches the snap block 10.

[0031] The card block 10 and the box bottom 1 are integrally formed; specifically, the card block 10 and the box bottom 1 are integrally formed of plastic. The plastic can be made of a material with good toughness, so that when the box lid 2 and the box bottom 1 are assembled, the two can deform, so that the card slot can be more easily inserted into the card block.

[0032] In addition, to ensure a more secure fit between the lid and the bottom of the box, multiple locking blocks 10 are arranged around the inner sidewall of the bottom of the box 1, and locking slots 20 are distributed around the outer sidewall of the lid 2. This ensures that after the lid and the bottom of the box are assembled, each locking block 10 and the locking slot 20 are engaged, and the fit between the lid and the bottom of the box is tighter around the edges.

[0033] It should be noted that a limiting platform 21 for pressing against the lower end of the box cover 2 is provided on the inner side wall of the box bottom 1. The limiting platform 21 is located below the card block 10.

[0034] In another preferred embodiment of this invention, the box cover 2 includes a cover plate 7. The lower end face of the cover plate 7 is provided with a mounting part 8 that can be inserted into the top opening of the box bottom 1. The mounting part 8 protrudes circumferentially from the lower end face of the cover plate 7. A slot 20 is formed on the outer side wall of the mounting part 8. The outer side wall of the mounting part 8 is also provided with a mounting groove 80 for fixing a sealing ring. The mounting groove 80 is located above the slot 20.

[0035] As another preferred embodiment of this invention, the lower end face of the cover plate 7 is also provided with a positioning rod 9 for fixing the electronic components inside the housing. The positioning rod 9 and the cover plate 7 are an integral structure. The positioning rod 9 is distributed on both sides of the cover plate 7. The mounting part 8 is located outside the positioning rod 9. The positioning rod 9 can fix the motor inside the housing.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A waterproof valve actuator housing, comprising a bottom (1) and a cover (2), wherein the bottom of the bottom (1) is a closed end and the top is an open end, and the interior has a cavity (3) for installing electronic components; the cover (2) is provided with a first mounting hole (4) for a cable to pass through and a second mounting hole (5) for a motor drive shaft to pass through, the first mounting hole (4) and the second mounting hole (5) respectively communicating with the cavity (3) inside the bottom, characterized in that: The lid (2) and the bottom (1) are joined together by a snap-fit ​​joint, and a sealing ring (6) is provided between the outer wall of the lid (2) and the inner wall of the bottom (1).

2. The waterproof valve actuator housing according to claim 1, characterized in that: The snap-fit ​​joint includes a snap block (10) formed on the inner side wall of the box bottom (1) and a snap groove (20) formed on the outer side wall of the box cover (2) and adapted to the snap block (10). The snap blocks (10) are arranged in multiple ways along the periphery of the inner side wall of the box bottom (1), and the snap grooves (20) are distributed circumferentially along the outer side wall of the box cover (2) so that after the box cover and the box bottom are assembled, each snap block (10) is engaged with the snap groove (20).

3. A waterproof valve actuator housing according to claim 1 or 2, characterized in that: The inner wall of the box bottom (1) is provided with a limiting platform (21) for pressing against the lower end of the box cover (2), and the limiting platform (21) is located below the card block (10).

4. The waterproof valve actuator housing according to claim 2, characterized in that: The box cover (2) includes a cover plate (7), and the lower end face of the cover plate (7) is provided with a mounting part (8) that can be inserted into the top opening of the box bottom (1). The mounting part (8) is circumferentially protruding towards the lower end face of the cover plate (7), and the slot (20) is formed on the outer side wall of the mounting part (8).

5. A waterproof valve actuator housing according to claim 4, characterized in that: The lower end face of the cover plate (7) is also provided with a positioning rod (9) for fixing the electronic components inside the housing. The positioning rod (9) is distributed on both sides of the cover plate (7), and the mounting part (8) is located outside the positioning rod (9).

6. A waterproof valve actuator housing according to claim 5, characterized in that: The outer wall of the mounting part (8) is also provided with a mounting groove (80) for fixing the sealing ring, and the mounting groove (80) is located above the card slot (20).

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