Improved electric push rod

Abstract

The utility model relates to an improved electric push rod which comprises a shell, a motor, a worm gear, a worm, a screw rod, a nut, a telescopic inner pipe and an outer pipe, the motor, the worm gear and the worm are arranged in the shell, the inner end of the outer pipe is fixedly connected with the shell, the nut is fixedly connected with the inner end of the telescopic inner pipe, the telescopic inner pipe is arranged on the outer pipe in a telescopic mode, and the motor drives the worm to rotate. The worm gear is meshed with the worm, one end of the lead screw is fixedly connected with the worm gear, the other end of the lead screw extends into the telescopic inner pipe and is in threaded connection with the nut, the shell is formed by folding and connecting a first shell body and a second shell body left and right, the first shell body and the second shell body are pre-connected through a buckle, and the first shell body and the second shell body are connected through a screw. The shell is formed by folding and connecting the first shell body and the second shell body left and right, the first shell body and the second shell body are pre-connected through the buckles, and the first shell body and the second shell body are connected through the screws, so that when a worker screws the screws, the two shell bodies do not need to be folded by hands, and the labor intensity of the worker is reduced. Therefore, the improved electric push rod is convenient and easy to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of electric push rods, in particular to an improved electric push rod. Background Art

[0002] An electric linear actuator, also known as a linear drive, is a new type of linear actuator primarily composed of a motor, a push rod, and a control device. It can be considered a structural extension of a rotary motor. An improved electric linear actuator is an electric drive device that converts the motor's rotational motion into linear reciprocating motion of a push rod. It can be used as an actuator in a variety of simple or complex process flows, enabling remote, centralized, or automated control. The motor, after being reduced by gears or worm gears, drives a pair of lead screws and nuts. This converts the motor's rotational motion into linear motion, which is then actuated by the motor's forward and reverse rotation. Complex motions such as rotation and shaking can be achieved through various mechanisms, such as levers, rockers, or connecting rods. The stroke can be increased or decreased by varying the lever arm length. The existing improved electric push rod, such as the improved electric push rod disclosed in Chinese patent announcement No. CN221728071U on September 17, 2024, includes a main box body, a long strip shell is fixedly mounted on the main box body, a drive assembly is mounted on the main box body, and a push rod assembly connected to the drive assembly is mounted on the long strip shell, the drive assembly includes a motor, a worm, a mounting shaft, a connecting tube, a sleeve and a worm gear, and the push rod assembly includes a screw, a screw nut and an inner tube. It can be seen from the drawings in its specification that the main box body is composed of an upper box body and a lower box body closed together, and the upper box body and the lower box body are fixed by screwing. When workers assemble the improved electric push rod, they need to use one hand to keep the upper box body and the lower box body closed, and then use the other hand to screw. Otherwise, the upper box body and the lower box body are easy to separate and cannot be screwed, which is very troublesome to install. Therefore, the structure of the existing improved electric push rod needs to be further improved. Utility Model Content

[0003] The purpose of the utility model is to provide an improved electric push rod which is easy to assemble.

[0004] The purpose of this utility model is achieved in this way:

[0005] An improved electric push rod comprises a housing, a motor, a worm gear, a worm, a screw, a nut, a telescopic inner tube, and an outer tube. The motor, worm gear, and worm are disposed within the housing. The inner end of the outer tube is fixedly connected to the housing. The nut is fixedly connected to the inner end of the telescopic inner tube. The telescopic inner tube is telescopically arranged on the outer tube. The motor drives the worm to rotate. The worm gear engages with the worm. One end of the screw is fixedly connected to the worm gear. The other end of the screw extends into the telescopic inner tube and is threadedly connected to the nut. The housing is composed of a first shell and a second shell that are closed and connected left and right. The first shell and the second shell are pre-connected by a buckle, and the first shell and the second shell are connected by screws. The housing of the utility model is composed of a first shell and a second shell that are closed and connected left and right. The first shell and the second shell are pre-connected by a buckle, and the first shell and the second shell are connected by screws. Therefore, when a worker screws in the screws, there is no need to keep the two shells closed by hand. Therefore, the improved electric push rod of the utility model is convenient and easy to assemble.

[0006] The present invention can also be further improved as follows.

[0007] The length direction of the first shell, the length direction of the second shell, and the length direction of the motor are the same.

[0008] A buckle is provided on the first shell, and a button hole is provided on the second shell at a position corresponding to the buckle, and the buckle is buckled with the button hole.

[0009] The beneficial effects of the utility model are as follows:

[0010] The shell of the utility model is composed of a first shell and a second shell that are folded together and connected to each other. The first shell and the second shell are pre-connected by a buckle, and the first shell and the second shell are connected by screws. Therefore, when a worker screws in the screws, there is no need to keep the two shells closed by hand. Therefore, the improved electric push rod of the utility model is convenient and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the improved electric push rod of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the improved electric push rod of the utility model from another angle.

[0013] Figure 3 It is an exploded view of the improved electric push rod of the utility model.

[0014] Figure 4 It is a top view of the improved electric push rod of the utility model.

[0015] Figure 5 yes Figure 4 Cross-sectional view at AA in the middle.

[0016] Figure 6 yes Figure 4 Cross-sectional view at the middle BB. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Example 1, as Figures 1 to 6 As shown, an improved electric push rod includes a shell 1, a motor 4, a worm gear 5, a worm 6, a screw 7, a nut 8, a telescopic inner tube 3 and an outer tube 2. The motor 4, the worm gear 5 and the worm 6 are arranged in the shell 1, the inner end of the outer tube 2 is fixedly connected to the shell 1, the nut 8 is fixedly connected to the inner end of the telescopic inner tube 3, the telescopic inner tube 3 is telescopically arranged on the outer tube 2, the motor 4 drives the worm 6 to rotate, the worm gear 5 engages with the worm 6, one end of the screw 7 is fixedly connected to the worm gear 5, and the other end of the screw 7 extends into the telescopic inner tube 3 and is threadedly connected to the nut 8. The shell 1 is composed of a first shell 12 and a second shell 11 that are closed and connected on the left and right. The first shell 12 and the second shell 11 are pre-connected by a snap fastener, and the first shell 12 and the second shell 11 are connected by a screw 15. When assembling the present invention, workers can first install the motor 4, worm gear 5, and worm 6 in the second housing 11, and then connect the screw 7, nut 8 and telescopic inner tube 3. Thereafter, the outer tube 2 is put on the telescopic inner tube 3, and then the first housing 12 is buckled on the second housing 11. The inner end of the outer tube 2 is fixedly connected to the outer shell 1, and finally the screws 15 are fastened on the first housing 12 and the second housing 11.

[0019] As a more specific technical solution of the utility model.

[0020] The length direction of the first housing 12 , the length direction of the second housing 11 , and the length direction of the motor 4 are the same.

[0021] A buckle 13 is provided on the first housing 12 , and a buckle hole 14 is provided on the second housing 11 at a position corresponding to the buckle 13 , and the buckle 13 is buckled with the buckle hole 14 .

[0022] The working principle of this utility model is:

[0023] The user starts the improved electric push rod, the motor 4 starts to drive the worm 6 to rotate, the worm 6 drives the worm wheel 5 to rotate, the worm wheel 5 drives the screw 7 to rotate, the screw 7 drives the nut 8 to move, and the nut 8 drives the telescopic inner tube 3 to extend or retract on the outer tube 2.

Claims

1. An improved electric push rod, comprising a housing, a motor, a worm gear, a worm, a screw, a nut, a telescopic inner tube and an outer tube, wherein the motor, the worm gear and the worm are arranged in the housing, the nut is fixedly connected to the inner end of the telescopic inner tube, the telescopic inner tube is telescopically arranged on the outer tube, the inner end of the outer tube is fixedly connected to the housing, the motor drives the worm to rotate, the worm gear is engaged with the worm, one end of the screw is fixedly connected to the worm gear, the other end of the screw extends into the telescopic inner tube and is threadedly connected to the nut, and is characterized in that: The outer shell is composed of a first shell and a second shell that are folded together and connected to each other. The first shell and the second shell are pre-connected by a buckle, and the first shell and the second shell are connected by screws.

2. The improved electric push rod according to claim 1, characterized in that: A buckle is provided on the first shell, and a button hole is provided on the second shell at a position corresponding to the buckle, and the buckle is buckled with the button hole.

3. The improved electric push rod according to claim 1, characterized in that: The length direction of the first shell, the length direction of the second shell, and the length direction of the motor are the same.

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