Waterproof and dustproof electric push rod

Abstract

The utility model relates to the technical field of electric push rods, in particular to a waterproof and dustproof electric push rod which comprises an electric push rod body, an outer sleeve is installed on the upper side of the electric push rod body, a sealing piece is fixedly connected to the upper side of the outer sleeve through a screw, the sealing piece is used for protecting the outer sleeve, and the sealing piece comprises a plastic framework and wear-resistant rubber. The electric push rod is sealed through the sealing piece, the Teflon gasket and the O-shaped rubber ring, the waterproof and dustproof effects of the electric push rod can be further improved, then the wire outlet hole of the electric push rod is connected through the waterproof connector, so that water and dust are prevented from entering the electric push rod, and the service life of the electric push rod is prolonged. The whole electric push rod is more comprehensively sealed, the protection grade of the electric push rod is enhanced, the service life of the electric push rod is prolonged, the rubber sleeve can be extruded together through the containing plate and the clamping block, the rubber sleeve is more tightly attached and sealed, and the sealing performance of the electric push rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric push rods, in particular to a waterproof and dustproof electric push rod. Background Art

[0002] An electric push rod is a linear actuator, mainly composed of a motor, a reducer, a controller and a push rod. It converts the rotation speed and force of the motor into linear thrust through the reducer, and moves or fixes objects through the push rod. It is widely used in various automation equipment and mechanical equipment, which can not only realize the precise movement of the equipment, but also improve production efficiency and quality.

[0003] The prior art discloses patent application number "CN201821237345.9", a handheld rechargeable linear drive electric push rod, comprising: a push rod body; a shell assembly, the shell assembly is sleeved on the outside of the push rod body; the waterproof assembly includes a seal a located between the telescopic assembly and the shell assembly and a seal b located between the push rod body and the shell assembly, the seal a and the seal b cooperate with the guide tube to achieve double sealing.

[0004] The electric push rod can only achieve double sealing, and in actual use, the electric push rod as mentioned above can only be sealed at its local position. At this time, water may still enter other positions on the electric push rod, which will cause the electrical components inside the electric push rod to be easily damaged, thereby affecting the service life of the electric push rod and making it inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof and dustproof electric push rod to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A waterproof and dustproof electric push rod comprises an electric push rod body, an outer sleeve is installed on the upper side of the electric push rod body, a sealing member is fixedly connected to the upper side of the outer sleeve by screws, the sealing member is used to protect the outer sleeve, the sealing member comprises a plastic frame and wear-resistant rubber, a Teflon gasket is installed between the electric push rod body and the outer sleeve, and a reduction box is fixedly installed on the upper side of the electric push rod body;

[0008] A reduction gear box cover is connected to the upper side of the reduction gear box body, three first O-type rubber rings are connected between the electric push rod body, the reduction gear box body and the reduction gear box cover, a bottom cover is slidably connected to the lower side of the electric push rod body, a second O-type rubber ring is installed inside the electric push rod body and the bottom cover, and a rubber sleeve is sleeved between the electric push rod body and the bottom cover.

[0009] Preferably, a waterproof joint is threadedly connected to the front side of the bottom cover, and the waterproof joint is used to prevent water and dust from entering. A rubber sealing ring is fixedly connected to the rear side of the waterproof joint.

[0010] Preferably, a connecting plate is fixedly installed on the left side of the bottom cover, and two first latching teeth are connected to the left side of the connecting plate. An L-shaped spring sheet is fixedly installed on the left side of the electric push rod body, and two second latching teeth are connected to the right side of the L-shaped spring sheet. The first latching teeth and the second latching teeth are embedded and engaged with each other.

[0011] Preferably, a third transverse plate is installed on the right side of the electric push rod body, a second transverse plate is installed on the right side of the bottom cover, and a clamping block is fixedly connected to the upper side of the second transverse plate, and the clamping block is located inside the third transverse plate.

[0012] Preferably, cross plates are fixedly installed at both ends of the card block, and the right side array of the card block is connected to the limit block. The cross plate and the limit block are used to reinforce the installation of the card block.

[0013] Preferably, both ends of the electric push rod body and the bottom cover are connected with a first horizontal plate, the inner sides of the two first horizontal plates are fixed with a placement plate, both sides of the placement plate are slidably connected with a positioning card plate, and connecting springs are connected in an array between the two positioning card plates and the placement plate. The positioning card plate is located inside the first horizontal plate, and the placement plate is used to fix the rubber sleeve.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model can further improve the waterproof and dustproof effect of the electric linear actuator by sealing the electric linear actuator with a seal, a Teflon gasket and an O-shaped rubber ring. Then, the outlet hole of the electric linear actuator is connected with a waterproof joint to prevent the entry of water and dust, which is conducive to a more comprehensive sealing treatment of the entire electric linear actuator, enhances the protection level of the electric linear actuator, improves the promotion rate of the electric linear actuator in the market, and prolongs the service life of the electric linear actuator;

[0016] 2. The utility model can reinforce the installation of the bottom cover by allowing two sets of locking teeth to be engaged with each other, and then the placement plate and the clamping block are installed on the rubber sleeve. In this way, the placement plate and the clamping block can squeeze the rubber sleeve together, making the rubber sleeve fit more tightly and seal more closely, which is used to improve the sealing of the electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This utility model Figure 1 Schematic diagram of the installation of the middle and outer casings and seals;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the structure of the plastic skeleton and wear-resistant rubber;

[0021] Figure 4 This utility model Figure 1 Installation diagram of the middle outer sleeve and Teflon gasket;

[0022] Figure 5 This utility model Figure 4 Schematic diagram of the structure of Teflon gasket;

[0023] Figure 6 This utility model Figure 1 Schematic diagram of the installation of the first O-type rubber ring and the second O-type rubber ring;

[0024] Figure 7 This utility model Figure 1 Schematic diagram of the structure of the waterproof joint and rubber sealing ring;

[0025] Figure 8 This utility model Figure 1 Installation diagram of the first horizontal plate and the positioning card plate;

[0026] Fig. 9 This utility model Figure 8 The enlarged view of point A in the middle;

[0027] Fig.10 This utility model Figure 8 Installation diagram of the electric linear actuator body, bottom cover and rubber sleeve;

[0028] Fig.11 This utility model Fig.10 Structural diagram of the middle clamping block, cross plate and limit block;

[0029] The reference numerals in the figures are as follows:

[0030] 1. Electric push rod body; 2. Outer sleeve; 3. Seal; 4. Plastic frame; 5. Wear-resistant rubber; 6. Gearbox body; 7. Gearbox cover; 8. Teflon gasket; 9. First O-type rubber ring; 10. Second O-type rubber ring; 11. Bottom cover; 12. Waterproof joint; 13. Rubber sealing ring; 14. Connecting plate; 15. First clamping tooth; 16. L-shaped spring; 17. Second clamping tooth; 18. Rubber sleeve; 19. First horizontal plate; 20. Placement plate; 21. Positioning clamping plate; 22. Connecting spring; 23. Second horizontal plate; 24. Block; 25. Cross plate; 26. Limit block; 27. Third horizontal plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] like Figures 1 to 11 As shown, a waterproof and dustproof electric push rod comprises an electric push rod body 1, an outer sleeve 2 is installed on the upper side of the electric push rod body 1, a seal 3 is fixedly connected to the upper side of the outer sleeve 2 by screws, and the seal 3 is used to protect the outer sleeve 2. The seal 3 comprises a plastic frame 4 and a wear-resistant rubber 5. Through the installation and use of the plastic frame 4 and the wear-resistant rubber 5, the wear-resistant rubber 5 can be embedded in the plastic frame 4, so that the seal 3 can be assembled to form the seal 3, so that the seal 3 can seal and protect the electric push rod, a Teflon gasket 8 is installed between the electric push rod body 1 and the outer sleeve 2, and the Teflon gasket 8 can withstand various corrosive media to ensure the normal operation of the electric push rod, and a reduction box 6 is fixedly installed on the upper side of the electric push rod body 1;

[0033] A reduction box cover 7 is connected to the upper side of the reduction box body 6, three first O-type rubber rings 9 are connected between the electric push rod body 1, the reduction box body 6 and the reduction box cover 7, a bottom cover 11 is slidably connected to the lower side of the electric push rod body 1, a second O-type rubber ring 10 is installed inside the electric push rod body 1 and the bottom cover 11, and a rubber sleeve 18 is sleeved between the electric push rod body 1 and the bottom cover 11.

[0034] The front side of the bottom cover 11 is threadedly connected with a waterproof joint 12, which is used to prevent water and dust from entering. The rear side of the waterproof joint 12 is fixedly connected with a rubber sealing ring 13. Through the setting of the rubber sealing ring 13, the rubber sealing ring 13 at the waterproof joint 12 can also increase the waterproofness of the waterproof joint 12, so that the entire electric push rod can be sealed.

[0035] A connecting plate 14 is fixedly installed on the left side of the bottom cover 11, and two first latching teeth 15 are connected to the left side of the connecting plate 14. An L-shaped spring piece 16 is fixedly installed on the left side of the electric push rod body 1, and two second latching teeth 17 are connected to the right side of the L-shaped spring piece 16. The first latching teeth 15 and the second latching teeth 17 are embedded and connected with each other.

[0036] A third transverse plate 27 is installed on the right side of the electric push rod body 1 , a second transverse plate 23 is installed on the right side of the bottom cover 11 , a clamping block 24 is fixedly connected to the upper side of the second transverse plate 23 , and the clamping block 24 is located inside the third transverse plate 27 .

[0037] Cross plates 25 are fixedly installed at both ends of the block 24 , and the right side of the block 24 is connected to a limit block 26 . The cross plates 25 and the limit blocks 26 are used to reinforce the installation of the block 24 .

[0038] The electric push rod body 1 and both ends of the bottom cover 11 are connected with a first transverse plate 19, and the inner sides of the two first transverse plates 19 are fixed with a placement plate 20. Both sides of the placement plate 20 are slidably connected with a positioning card plate 21. Through the setting of the positioning card plate 21, the clamping installation of the two positioning card plates 21 can be used to fix the placement plate 20 so as to fix the rubber sleeve 18. The two positioning card plates 21 and the placement plate 20 are all connected with a connecting spring 22 in an array. The positioning card plate 21 is located inside the first transverse plate 19, and the placement plate 20 is used to fix the rubber sleeve 18.

[0039] The working principle of a waterproof and dustproof electric push rod provided by the utility model is as follows:

[0040] By installing the seal 3 to the outer sleeve 2, the seal 3 at this time is composed of a plastic skeleton 4 and a wear-resistant rubber 5, so that its protection level can be enhanced, so that the entire electric push rod is safer and more reliable, and then the Teflon gasket 8 is installed at the connection between the outer sleeve 2 and the electric push rod reducer, so that the Teflon gasket 8 can play a role of waterproof and corrosion resistance, and then the first O-type rubber ring 9 and the second O-type rubber ring 10 are distributed at the connection between the reducer box body 6, the reducer box cover 7 and the motor, which can further improve the waterproof and dustproof effect of the electric push rod, and then the outlet hole of the electric push rod is connected by a waterproof joint 12 to prevent the entry of water and dust, which is conducive to a more comprehensive sealing treatment of the entire electric push rod, enhancing the protection level of the electric push rod, improving the promotion rate of the electric push rod in the market, and extending the service life of the electric push rod;

[0041] By inserting the rubber sleeve 18 between the rubber sleeve 18 and the bottom cover 11, and then pulling the second tooth 17 at the L-shaped spring sheet 16, the second tooth 17 can be snapped into the first tooth 15 at the connecting plate 14 to reinforce the installation of the bottom cover 11. Subsequently, the installation of the bottom cover 11 will also allow the block 24 at the second cross plate 23 to be inserted into the third cross plate 27. At this time, the cross plate 25 and the limit block 26 at the block 24 can firmly position the block 24, making the installation of the entire electric push rod more stable and reliable. Subsequently, the two positioning card plates 21 with connecting springs 22 installed at the squeezing and placing plate 20 are squeezed, so that the two positioning card plates 21 with elastic force can be snapped into the two first cross plates 19 for fixing the bottom cover 11. At the same time, the placing plate 20 and the block 24 can also squeeze the rubber sleeve 18 together, so that the rubber sleeve 18 fits and seals more tightly, which is used to improve the sealing of the electric push rod.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A waterproof and dustproof electric push rod, comprising an electric push rod body (1), characterized in that: An outer sleeve (2) is installed on the upper side of the electric push rod body (1), and a sealing member (3) is fixedly connected to the upper side of the outer sleeve (2) by screws. The sealing member (3) is used to protect the outer sleeve (2), and the sealing member (3) includes a plastic frame (4) and wear-resistant rubber (5). A Teflon gasket (8) is installed between the electric push rod body (1) and the outer sleeve (2), and a reduction box (6) is fixedly installed on the upper side of the electric push rod body (1); The upper side of the reduction box body (6) is connected to a reduction box cover (7); three first O-type rubber rings (9) are connected between the electric push rod body (1), the reduction box body (6) and the reduction box cover (7); the lower side of the electric push rod body (1) is slidably connected to a bottom cover (11); a second O-type rubber ring (10) is installed inside the electric push rod body (1) and the bottom cover (11); and a rubber sleeve (18) is sleeved between the electric push rod body (1) and the bottom cover (11).

2. The waterproof and dustproof electric linear actuator according to claim 1, characterized in that: The front side of the bottom cover (11) is threadedly connected to a waterproof joint (12), which is used to prevent water and dust from entering. The rear side of the waterproof joint (12) is fixedly connected to a rubber sealing ring (13).

3. The waterproof and dustproof electric linear actuator according to claim 1, characterized in that: A connecting plate (14) is fixedly mounted on the left side of the bottom cover (11), and two first latching teeth (15) are connected to the left side of the connecting plate (14); an L-shaped spring sheet (16) is fixedly mounted on the left side of the electric push rod body (1), and two second latching teeth (17) are connected to the right side of the L-shaped spring sheet (16); the first latching teeth (15) and the second latching teeth (17) are mutually embedded and latched.

4. The waterproof and dustproof electric linear actuator according to claim 1, characterized in that: A third transverse plate (27) is installed on the right side of the electric push rod body (1), a second transverse plate (23) is installed on the right side of the bottom cover (11), a clamping block (24) is fixedly connected to the upper side of the second transverse plate (23), and the clamping block (24) is located inside the third transverse plate (27).

5. The waterproof and dustproof electric linear actuator according to claim 4, characterized in that: Cross plates (25) are fixedly mounted on both ends of the card block (24); the right side of the card block (24) is connected to a limit block (26) in an array; the cross plate (25) and the limit block (26) are used to reinforce the installation of the card block (24).

6. The waterproof and dustproof electric linear actuator according to claim 1, characterized in that: Both ends of the electric push rod body (1) and the bottom cover (11) are connected to a first transverse plate (19); a placement plate (20) is fixedly provided on the inner side surfaces of the two first transverse plates (19); both sides of the placement plate (20) are slidably connected to a positioning card plate (21); connecting springs (22) are connected in an array between the two positioning card plates (21) and the placement plate (20); the positioning card plate (21) is located inside the first transverse plate (19); and the placement plate (20) is used to fix the rubber sleeve (18).

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