Shell sealing mechanism for electric actuator

Abstract

The utility model discloses a casing sealing mechanism for an electric actuator, which comprises an actuator body, casing covers are mounted at two ends of the actuator body, clamping grooves are formed in two ends of the actuator body, clamping plates are fixedly connected to the edges of one sides, close to the actuator body, of the casing covers, and the clamping plates are clamped in the clamping grooves. One end of the clamping plate protrudes towards the outer side, a sealing strip is installed in the clamping groove, the sealing strip is pasted to the inner wall of the clamping groove through industrial glue, the sealing strip is tightly attached to the side wall and the inner bottom wall of the clamping groove, two first arc-shaped grooves are formed in the clamping groove, and first sealing rings are arranged in the two first arc-shaped grooves correspondingly; a second arc-shaped groove is formed in the surface of the clamping plate, the outer wall of the first sealing ring is attached to the inner wall of the second arc-shaped groove, and through a multi-sealing structure, the sealing effect is improved, and the overall sealing performance of the electric actuator is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric actuator technical field, concretely is a kind of shell sealing mechanism for electric actuator. 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 certain control signal, and the actuator uses liquid, gas, electricity or other energy, and is converted into driving action by motor, cylinder or other device.

[0003] At present, the sealing performance of electric actuator is crucial to its normal operation, but the existing electric actuator shell sealing form is single, and is mostly in the form of gasket sealing, thread sealing or O-ring sealing, etc., when facing complex and changeable working environment, its sealing performance may be challenged, resulting in poor sealing effect. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of shell sealing mechanism for electric actuator, to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of shell sealing mechanism for electric actuator, including actuator body, the both ends of the actuator body are equipped with shell cover, the both ends of the actuator body are equipped with clamping groove, and the side edge of the shell cover close to the actuator body is fixedly connected with clamping plate, the clamping plate is clamped in the inside of clamping groove, and one end of the clamping plate protrudes outward.

[0006] As further preferred of the technical scheme, sealing strip is installed in the inside of the clamping groove, the sealing strip is pasted to the inner wall of clamping groove by industrial glue, and the side wall and inner bottom wall of the sealing strip are tightly attached to the clamping groove.

[0007] As further preferred of the technical scheme, two first arc grooves are opened in the inside of the clamping groove, first sealing ring is arranged in the inside of the two first arc grooves, second arc groove is opened on the surface of the clamping plate, and the outer wall of the first sealing ring is attached to the inner wall of second arc groove.

[0008] As further preferred of the technical scheme, two third arc grooves are opened in the inner wall of the end of the actuator body close to the shell cover, second sealing ring is arranged in the inside of the two third arc grooves, fourth arc groove is opened on the surface of the shell cover, and the outer wall of the second sealing ring is attached to the inner wall of fourth arc groove.

[0009] As further preferred of the technical scheme, rectangular groove is opened in the both ends of the first sealing ring and second sealing ring, and the rectangular groove is clamped in the opening of first arc groove and third arc groove.

[0010] As a further preferred technical solution, the two end surfaces of the actuator body are fixedly connected with dustproof strips, the shell cover is provided with grooves matched with the dustproof strips on the side close to the actuator body, and the dustproof strips are connected with the actuator body by adhesives.

[0011] The utility model provides a shell sealing mechanism for electric actuator has the following beneficial effects:

[0012] (1) the utility model discloses a sealing strip, first sealing ring and second sealing ring carry out multiple sealing to the connecting gap of shell cover and actuator body, improve the sealing effect, guarantee the sealing property of electric actuator whole.

[0013] (2) the utility model discloses a dustproof strip and seal the gap between shell cover and actuator body, further improve the sealing performance. DRAWINGS

[0014] Figure 1 It is the actuator body structure schematic view of the utility model;

[0015] Figure 2 It is the actuator body cross section structure schematic view of the utility model;

[0016] Figure 3 It is the structure enlarged view of place A of the utility model;

[0017] Figure 4 It is the structure enlarged view of place B of the utility model.

[0018] In the drawing: 1, actuator body;2, shell cover;3, clamping groove;4, clamping plate;5, sealing strip;6, dustproof strip;7, groove;8, first arc slot;9, first sealing ring;10, second arc slot;11, rectangular slot;12, third arc slot;13, second sealing ring;14, fourth arc slot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model.

[0020] The utility model provides technical scheme: as Figures 1-4 As shown in the drawing, in the embodiment, a shell sealing mechanism for electric actuator includes actuator body 1, the both ends of actuator body 1 are installed with shell cover 2, the both ends of actuator body 1 are provided with clamping groove 3, and the side edge of shell cover 2 close to actuator body 1 is fixedly connected with clamping plate 4, clamping plate 4 is clamped in the inside of clamping groove 3, and one end of clamping plate 4 protrudes outward.

[0021] The inside of the card slot 3 is provided with a sealing strip 5, which is adhered to the inner wall of the card slot 3 by industrial glue, and tightly adheres to the side wall and the inner bottom wall of the card slot 3. When the shell cover 2 is connected with the actuator body 1, the clamping plate 4 is inserted into the card slot 3. Since one end of the clamping plate 4 is provided with a protrusion, the protrusion can extrude the sealing strip 5, so that the sealing strip 5 and the clamping plate 4 are tightly combined with the card slot 3 to complete the sealing.

[0022] The inside of the card slot 3 is provided with two first arc-shaped grooves 8, and the inside of each of the two first arc-shaped grooves 8 is provided with a first sealing ring 9. The surface of the clamping plate 4 is provided with a second arc-shaped groove 10, and the outer wall of the first sealing ring 9 is combined with the inner wall of the second arc-shaped groove 10. After the clamping plate 4 enters the card slot 3, the smooth side of the clamping plate 4 will extrude the first sealing ring 9. After the first sealing ring 9 is coincided with the second arc-shaped groove 10, one side of the first sealing ring 9 will be clamped into the second arc-shaped groove 10 to seal the gap between the clamping plate 4 and the card slot 3.

[0023] The inner wall of one end of the actuator body 1 close to the shell cover 2 is provided with two third arc-shaped grooves 12, and the inside of each of the two third arc-shaped grooves 12 is provided with a second sealing ring 13. The surface of the shell cover 2 is provided with a fourth arc-shaped groove 14, and the outer wall of the second sealing ring 13 is combined with the inner wall of the fourth arc-shaped groove 14. After the shell cover 2 is connected with the actuator body 1, the second sealing ring 13 will be clamped into the fourth arc-shaped groove 14 after being coincided with the fourth arc-shaped groove 14 to seal the gap between the shell cover 2 and the inner wall of the actuator body 1.

[0024] The two ends of the first sealing ring 9 and the second sealing ring 13 are provided with rectangular grooves 11, which are clamped at the openings of the first arc-shaped grooves 8 and the third arc-shaped grooves 12. Through the arrangement of the rectangular grooves 11, the first sealing ring 9 and the second sealing ring 13 can be clamped into the first arc-shaped grooves 8 and the third arc-shaped grooves 12 respectively. When the clamping plate 4 and the shell cover 2 extrude the first sealing ring 9 and the second sealing ring 13, the first sealing ring 9 and the second sealing ring 13 will not be separated from the first arc-shaped grooves 8 and the third arc-shaped grooves 12, so that the first sealing ring 9 and the second sealing ring 13 cannot be deviated and cannot play a sealing effect. Secondly, compared with the O-shaped sealing ring, the arrangement of the rectangular grooves 11 increases the filling area, and further improves the sealing effect.

[0025] The surfaces of the two ends of the actuator body 1 are fixedly connected with dustproof strips 6, and the side of the shell cover 2 close to the actuator body 1 is provided with grooves 7 matched with the dustproof strips 6. The dustproof strips 6 are connected with the actuator body 1 through an adhesive. When the shell cover 2 is connected with the actuator body 1, the dustproof strips 6 will be placed in the grooves 7 to play a dustproof sealing effect and improve the sealing effect.

[0026] The utility model provides a kind of shell sealing mechanism for electric actuator, specific working principle is as follows:

[0027] When the shell cover 2 is connected with the actuator body 1, the clamping plate 4 is inserted into the clamping groove 3, since one end of the clamping plate 4 is provided with a protrusion, the protrusion can extrude the sealing strip 5, so that the sealing strip 5 and the clamping plate 4 are tightly attached to the clamping groove 3, and after the clamping plate 4 enters the clamping groove 3, the smooth side of the clamping plate 4 will extrude the first sealing ring 9, and after the first sealing ring 9 coincides with the second arc-shaped groove 10, one side of the first sealing ring 9 will be clamped into the second arc-shaped groove 10, so as to seal the gap between the clamping plate 4 and the clamping groove 3, and then after the shell cover 2 is fixed with the actuator body 1, the second sealing ring 13 will coincide with and be clamped into the fourth arc-shaped groove 14, so as to seal the gap between the shell cover 2 and the inner wall of the actuator body 1, and the effect of multiple sealing is achieved.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A housing sealing mechanism for an electric actuator, comprising an actuator body (1), characterized in that: Both ends of the actuator body (1) are provided with a shell (2), both ends of the actuator body (1) are provided with a clamping groove (3), and the side edge of the shell (2) close to the actuator body (1) is fixedly connected with a clamping plate (4), the clamping plate (4) is clamped in the clamping groove (3), and one end of the clamping plate (4) protrudes outward.

2. A housing seal mechanism for an electric actuator according to claim 1, characterized in that: The inside of the clamping groove (3) is provided with a sealing strip (5), the sealing strip (5) is pasted on the inner wall of the clamping groove (3) by industrial glue, and the sealing strip (5) is tightly attached to the side wall and the inner bottom wall of the clamping groove (3).

3. A housing seal mechanism for an electric actuator as defined in claim 1, wherein: The inside of the clamping groove (3) is provided with two first arc grooves (8), and the inside of the two first arc grooves (8) is provided with a first sealing ring (9), the surface of the clamping plate (4) is provided with a second arc groove (10), and the outer wall of the first sealing ring (9) is attached to the inner wall of the second arc groove (10).

4. A housing seal mechanism for an electric actuator according to claim 3, wherein: The inner wall of the end of the actuator body (1) close to the shell (2) is provided with two third arc grooves (12), the inside of the two third arc grooves (12) is provided with a second sealing ring (13), and the surface of the shell (2) is provided with a fourth arc groove (14), the outer wall of the second sealing ring (13) is attached to the inner wall of the fourth arc groove (14).

5. A housing seal mechanism for an electric actuator according to claim 4, wherein: Both ends of the first sealing ring (9) and the second sealing ring (13) are provided with a rectangular groove (11), and the rectangular groove (11) is clamped at the opening of the first arc groove (8) and the third arc groove (12).

6. A housing seal mechanism for an electric actuator as defined in claim 1, wherein: Both ends of the actuator body (1) are provided with a dustproof strip (6), the shell (2) close to the actuator body (1) is provided with a groove (7) matched with the dustproof strip (6), and the dustproof strip (6) is connected with the actuator body (1) by adhesive.

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