Electric push rod with mistake-proof assembly structure

Abstract

The utility model provides an electric push rod with a mistake-proof assembly structure, which comprises a shell assembly, a power assembly and a control assembly, the power assembly and the control assembly are mounted in the shell assembly, and the shell assembly, the power assembly and the control assembly are in circumferential mistake-proof fit. The shell assembly, the power assembly and the control assembly of the push rod have only one matching mode in the circumferential direction, the situation of installation dislocation is avoided, and the problems that the assembly efficiency of the push rod is low, and wires are inconvenient to install are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric push rods, in particular to an electric push rod with an anti-misassembly structure. Background Art

[0002] An electric linear actuator is an electric drive device that converts the rotational motion of a motor into the linear reciprocating motion of a push rod. It can be used as an executive machine in various simple or complex process flows to achieve remote control, centralized control or automatic control.

[0003] The assembly of the push rod is generally carried out by first cooperating with the preset connection structure between the components, and then connecting them using fasteners. In the prior art, the connection structures of the components are mostly circumferentially uniformly distributed, which makes there are multiple matching directions between adjacent components, and the installation direction is not uniform. Workers may install the push rod misaligned when assembling it, causing the installation position of the wire and the corresponding circumferential position of the structure to be misaligned, requiring rework and reassembly, resulting in low installation efficiency, not conducive to wire installation and consuming more wire. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and provide an electric push rod with an anti-mistake assembly structure, so that there is only one circumferential matching method between the push rod's housing component, power component and control component, and there will be no installation misalignment, thereby solving the problems of low push rod assembly efficiency and inconvenient wire installation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electric push rod with an anti-error assembly structure comprises a housing component and a power component and a control component installed in the housing component. The housing component, the power component and the control component are circumferentially anti-error matched.

[0007] Preferably, the power assembly comprises at least a drive unit and a bearing seat, the drive end of the drive unit is mounted on the inner end surface of the bearing seat via a mounting plate, and an insulating sleeve is mounted on the rear end of the drive unit.

[0008] Preferably, a first notch is provided at the rear end of the driving unit, and a first mounting structure cooperating with the first notch is provided at the insulating sleeve.

[0009] Preferably, the control assembly comprises a control board, a stroke limit unit and a wiring harness, the control board is mounted on the outside of the insulating sleeve, and the stroke limit unit is electrically connected to the control board via a plurality of lead wires.

[0010] As a preference, a second notch is provided in the middle of the control board, and the insulating sleeve is provided with a second mounting structure that cooperates with the second notch.

[0011] As a preference, the housing assembly includes a first housing, a second housing, and a connecting sleeve that are coaxially arranged. The connecting sleeve and the second housing are installed at one end of the first housing. The outer side surface of the connecting sleeve cooperates with the first housing, and the inner side surface cooperates with the second housing.

[0012] As a preference, the bearing seat is installed on the inner end surface of the connecting sleeve, and the second housing is installed on the outer end surface of the bearing seat.

[0013] As a preference, the second housing is provided with a first pin hole, and the outer end surface of the bearing seat is provided with a second pin hole that cooperates with the first pin hole; the mounting plate is provided with a third pin hole, and the inner end surface of the bearing seat is provided with a fourth pin hole that cooperates with the third pin hole; the mounting plate is further provided with a fifth pin hole, and the driving end of the driving unit is provided with a sixth pin hole that cooperates with the fifth pin hole; pins are installed between the first pin hole and the second pin hole, the third pin hole and the fourth pin hole, and the fifth pin hole and the sixth pin hole.

[0014] As a preference, the stroke limiting unit is installed inside the second housing, and the lead wire is arranged at the lower end of the stroke limiting unit; the bearing seat is provided with a wire channel corresponding to the lead wire.

[0015] As a preference, it further includes an end cover. The end cover is installed at one end of the second housing through circumferentially evenly distributed fasteners, and it is provided with a through hole for accommodating the wire harness.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) The present utility model has only one circumferential mating direction through the housing assembly, the power assembly, and the control assembly, so that the installation positions of the components of the present utility model are unified, and there will be no installation misalignment, avoiding the rework of the push rod and improving the work efficiency of workers.

[0018] (2) By providing a first mounting structure and a second mounting structure on the insulating sleeve to cooperate with the first notch at the tail end of the driving unit and the second notch of the control board respectively, the present utility model makes the installation direction between the driving unit and the control board unique, facilitating the connection of the positive and negative poles of the driving unit.

[0019] (3) In the present utility model, the first pin hole and the second pin hole, the third pin hole and the fourth pin hole, and the fifth pin hole and the sixth pin hole which are corresponding in position are provided, and the installation pin shaft is used for circumferential limit thereto. Coupled with the original fastener connection, the installation directions among the second housing, the bearing seat, the mounting plate and the driving unit are unified, so that the stroke limiting unit can correspond to the wire channel. Meanwhile, the connection position of the lead-out wire corresponding to the lower part of the wire channel and the control board is set, which is convenient for the connection of the lead-out wire. Brief Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic sectional view structure diagram of the present utility model;

[0022] Figure 3 is a schematic axonometric view of the cross section of the present utility model;

[0023] Figure 4 is another schematic cross-sectional structure diagram of the present utility model;

[0024] Figure 5 is an exploded structure schematic diagram of the present utility model;

[0025] Figure 6 is the present utility model Figure 5 partial enlarged schematic diagram at I in;

[0026] Figure 7 is a schematic top view and bottom view structure diagram of the bearing seat of the present utility model;

[0027] Figure 8 is a schematic structure diagram of the driving unit and the mounting plate of the present utility model. Detailed Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0030] Embodiment

[0031] As Figure 1-7 shown, this embodiment provides an electric push rod with an anti-misassembly structure, which includes a housing assembly 1, a power assembly 2 and a control assembly 3 installed in the housing assembly 1. The housing assembly 1, the power assembly 2 and the control assembly 3 are circumferentially anti-mismatched, that is, there is only one circumferential mating direction for the housing assembly 1, the power assembly 2 and the control assembly 3, so that the installation positions of the components of the present utility model are unified, and the situation of installation misalignment will not occur, avoiding the rework of the push rod and improving the working efficiency of workers.

[0032] As Figure 2 、 5 shown, the power assembly 2 at least includes a driving unit 21 and a bearing seat 22. In this embodiment, the driving unit 21 is a motor. The driving end of the driving unit 21 is installed on the inner end face of the bearing seat 22 through a mounting plate 23. An insulating sleeve 24 is installed at the tail end of the driving unit 21. The mounting plate 23 is connected to the driving unit 21 through a plurality of circumferentially evenly distributed fasteners.

[0033] As Figure 2 、 3 shown, a first notch 211 is provided at the tail end of the driving unit 21, and a first mounting structure 241 matching the first notch 211 is provided on the insulating sleeve 24.

[0034] As Figure 2 、 5As shown, the control component 3 includes a control board 31, a travel limit unit 32, and a wire harness 33. The control board 31 is installed outside the insulating sleeve 24, and the travel limit unit 32 is electrically connected to the control board 31 through a plurality of lead wires 34.

[0035] As Figure 2 , 4 shown, a second notch 311 is provided in the middle of the control board 31, and the insulating sleeve 24 is provided with a second mounting structure 242 that cooperates with the second notch 311.

[0036] By providing a first mounting structure 241 and a second mounting structure 242 on the insulating sleeve 24 to cooperate with the first notch 211 at the tail end of the driving unit 21 and the second notch 311 of the control board 31 respectively, the installation direction between the driving unit 21 and the control board is unique, which facilitates the wiring of the positive and negative poles of the driving unit 21.

[0037] As Figure 1 , 2 shown, the housing assembly 1 includes a first housing 11, a second housing 12, and a connecting sleeve 13 that are coaxially arranged. The connecting sleeve 13 and the second housing 12 are installed at one end of the first housing 11. The outer side of the connecting sleeve 13 cooperates with the first housing 11, and the inner side cooperates with the second housing 12. Sealing rings are provided on both the inner and outer sides of the connecting sleeve 13 to make the connecting sleeve 13 be hermetically connected to the first housing 11 and the second housing 12 respectively.

[0038] As Figure 5-8 shown, the bearing seat 22 is installed on the inner end face of the connecting sleeve 13, and the second housing 12 is installed on the outer end face of the bearing seat 22 through a plurality of circumferentially evenly distributed fasteners. The second housing 12 is provided with a first pin hole 121, and the outer end face of the bearing seat 22 is provided with a second pin hole 221 that cooperates with the first pin hole 121; the mounting plate 23 is provided with a third pin hole 231, and the inner end face of the bearing seat 22 is provided with a fourth pin hole 222 that cooperates with the third pin hole 231; the mounting plate 23 is further provided with a fifth pin hole 232, and the driving end of the driving unit 21 is provided with a sixth pin hole 212 that cooperates with the fifth pin hole 232; pins 4 are installed between the first pin hole 121 and the second pin hole 221, the third pin hole 231 and the fourth pin hole 222, and the fifth pin hole 232 and the sixth pin hole 212.

[0039] As Figure 5-7 shown, the travel limit unit 32 is installed inside the second housing 12, and the lead wires 34 are arranged at the lower end of the travel limit unit 32; the bearing seat 22 is provided with a wire channel 223 corresponding to the lead wires 34.

[0040] By setting the first pin hole 121 and the second pin hole 221, the third pin hole 231 and the fourth pin hole 222, and the fifth pin hole 232 and the sixth pin hole 212 corresponding to the positions, and installing the pin shaft 4 to perform circumferential limit on them, plus the original fastener connection, the installation directions among the second housing 12, the bearing seat 22, the mounting plate 23 and the drive unit 21 are unified. The stroke limiting unit 32 can correspond to the wire channel 223. At the same time, the wire outlet 34 corresponding to the lower part of the wire channel 223 is arranged at the connection position with the control board 31, which is convenient for the connection of the wire outlet 34.

[0041] As Figure 2 , 5 shown, it further includes an end cover 5. The end cover 5 is installed at one end of the second housing 12 through circumferentially evenly distributed fasteners 6 to axially position the first housing 11, and it is provided with a through hole 51 for accommodating the wire harness 33. Through the cooperation of the fastener 6 and the wire outlet mounting position 51, the installation direction of the end cover is unique.

[0042] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric push rod with an anti-misassembly structure, comprising a housing assembly, a power assembly and a control assembly installed in the housing assembly, characterized in that, The outer shell assembly, power assembly, and control assembly are circumferentially anti-misalignment fitted; The power assembly includes at least a drive unit and a bearing seat. The drive end of the drive unit is installed on the inner end face of the bearing seat through a mounting plate, and an insulating sleeve is installed at the tail end of the drive unit; The control assembly includes a control board, a travel limit unit, and a wiring harness. The control board is installed outside the insulating sleeve, and the travel limit unit is electrically connected to the control board through a plurality of lead wires; The outer shell assembly includes a first housing, a second housing, and a connecting sleeve arranged coaxially. The connecting sleeve and the second housing are installed at one end of the first housing. The outer side face of the connecting sleeve cooperates with the first housing, and the inner side face cooperates with the second housing.

2. The electric push rod with an anti-misassembly structure according to claim 1, characterized in that, A first notch is provided at the tail end of the drive unit, and the insulating sleeve is provided with a first mounting structure that cooperates with the first notch.

3. The electric push rod with an anti-misassembly structure according to claim 1, characterized in that, A second notch is provided in the middle of the control board, and the insulating sleeve is provided with a second mounting structure that cooperates with the second notch.

4. The electric push rod with an anti-misassembly structure according to claim 1, characterized in that, The bearing seat is installed on the inner end face of the connecting sleeve, and the second housing is installed on the outer end face of the bearing seat.

5. The electric push rod with an anti-misassembly structure according to claim 4, characterized in that, The second housing is provided with a first pin hole, and the outer end face of the bearing seat is provided with a second pin hole that cooperates with the first pin hole; the mounting plate is provided with a third pin hole, and the inner end face of the bearing seat is provided with a fourth pin hole that cooperates with the third pin hole; the mounting plate is further provided with a fifth pin hole, and the drive end of the drive unit is provided with a sixth pin hole that cooperates with the fifth pin hole; pins are installed between the first pin hole and the second pin hole, the third pin hole and the fourth pin hole, and the fifth pin hole and the sixth pin hole.

6. The electric push rod with an anti-misassembly structure according to claim 4, characterized in that, The travel limit unit is installed inside the second housing, and the lead wires are arranged at the lower end of the travel limit unit; the bearing seat is provided with a wire channel corresponding to the lead wires.

7. The electric push rod with an anti-misassembly structure according to claim 1, characterized in that, It further includes an end cover. The end cover is installed at one end of the second housing through circumferentially evenly distributed fasteners, and it is provided with a through hole for accommodating the wiring harness.

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