CN213125739U

CN213125739U - Electric linear push rod

Info

Publication number: CN213125739U
Application number: CN202021365317.2U
Authority: CN
Inventors: 吴光东; 许鸣飞
Original assignee: Jiangsu Huayang Intelligent Equipment Co ltd
Current assignee: Jiangsu Huayang Intelligent Equipment Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-05-04
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses an electronic linear push rod, include: the output shaft of the driving motor is a worm; a body which is an integral moulding and defines a receiving cavity having two open ends, one end of the worm extending into the receiving cavity through one of the open ends; the worm wheel is arranged in the accommodating cavity and matched with the worm; one end of the screw rod extends into the other open end and is in transmission fit with a turbine shaft of the turbine; the transmission part is sleeved on the periphery of the screw rod and is in threaded connection with the screw rod so as to move linearly along the screw rod when the driving motor rotates. This electronic linear push rod adopts the integral type structure, has the reduction material, reduces production processes, raises the efficiency, advantages such as reduce cost.

Description

Electric linear push rod

Technical Field

The utility model belongs to mechanical transmission device field, more specifically relates to an electronic linear push rod.

Background

Electric linear push rod extensively is used in the product field of adjustable position such as medical bed, house beddo, hotel beddo, electronic recovery bed, dental chair, electronic leisure sofa, old helping station chair, electric lift table, car seat, massage armchair, and electric linear push rod is through utilizing motor, reducing gear box, drive disk assembly drive the above-mentioned product of adjustable health position, and then adjusts the suitable position of human body.

The middle connection conversion part of the motor of the existing electric linear push rod mostly adopts a box body and box cover upper and lower two-half combined structure and is fixed by screws, so that the whole structure of the electric linear push rod is not compact enough, the processing cost is increased, and the assembly of a product is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model provides an electronic linear push rod, this electronic linear push rod adopt the integral type structure, have the reduction material, reduce production processes, raise the efficiency, advantages such as reduce cost.

According to the utility model discloses electronic linear push rod, include: the output shaft of the driving motor is a worm; a body which is an integral moulding and defines a receiving cavity having two open ends, one end of the worm extending into the receiving cavity through one of the open ends; the worm wheel is arranged in the accommodating cavity and matched with the worm; one end of the screw rod extends into the other open end and is in transmission fit with a turbine shaft of the turbine; the transmission part is sleeved on the periphery of the screw rod and is in threaded connection with the screw rod so as to move linearly along the screw rod when the driving motor rotates.

According to the utility model discloses electric linear push rod adopts the device that driving motor, main part, turbine, lead screw and driving medium combined together, through setting up the main part into integrated into one piece spare, and the assembly of the electric linear push rod of being convenient for has improved processing production efficiency to reduce the processing material, reduced manufacturing cost.

According to an embodiment of the present invention, one of the open ends is located at a lower end of the main body, and the other of the open ends is located at an outer peripheral surface of the main body.

According to the utility model discloses an embodiment, driving motor includes: the stator assembly is internally provided with a cavity with two open ends; a rotor assembly disposed in the chamber; the rear cover is detachably arranged on an opening at the lower end of the cavity and is connected with the stator assembly; and the two ends of the connecting piece are respectively connected with the rear cover and the main body in a detachable manner.

According to the utility model discloses an embodiment, be equipped with the mounting hole that link up along its thickness direction on the back lid, the connecting piece forms into rectangular shape spare, the one end of connecting piece is passed the mounting hole stretches into hold the intracavity and with the main part links to each other.

According to an embodiment of the invention, the connecting piece is formed as a screw.

According to the utility model discloses an embodiment, the driving medium is the pipe, electric linear push rod still includes: one end of the special pipe extends into the other open end and is connected with the main body, an installation channel extending along the axial direction of the special pipe is limited in the special pipe, and a lead screw nut of the lead screw is arranged in the installation channel and is in sliding fit with the special pipe; the pipe, the pipe cover is located in the installation passageway, the one end of pipe with screw-nut is fixed continuous, the lead screw extends to set up in the pipe.

According to the utility model discloses an embodiment, it is equipped with first cavity and second cavity to hold the chamber, the main part includes: the main body is internally provided with the first cavity with the lower end opened, the turbine is arranged in the first cavity, and the main body is detachably connected with the connecting piece; the mounting piece is arranged on one side of the main body and is limited with the second chamber with two open ends, one end of the special pipe penetrates through the second chamber and then extends into the first chamber, and the mounting piece is provided with a notch extending along the axial direction of the special pipe; the retaining member, the retaining member is located the breach just can adjust the size of breach.

According to an embodiment of the invention, the mounting member is formed as a cylindrical member extending in the axial direction of the profile tube, the indentation being provided on the outer circumferential edge of the mounting member adjacent to the direction in which the other end of the profile tube is located.

According to the utility model discloses an embodiment, the installed part with be equipped with on the position that the breach corresponds with the locking hole of breach intercommunication, the retaining member forms to be located the locking screw in locking hole.

According to an embodiment of the present invention, the mounting member is fixedly connected to the mechanical tube.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an electric linear push rod according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an electric linear pusher according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a main body of the electric linear putter according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a body of an electric linear pusher according to an embodiment of the present invention.

Reference numerals:

an electric linear push rod 100;

a drive motor 10; a worm 11; a stator assembly 12; a rotor assembly 13; a rear cover 14; a connecting member 15;

a main body 20; a main body 21; a mounting member 22; a locking member 23; a notch 24; the accommodation chamber 25; a first chamber 251; a second chamber 252;

a turbine 30;

a screw 40; a feed screw nut 41;

a special pipe 60;

a circular tube 70.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, an electric linear putter 100 according to an embodiment of the present invention includes: the driving motor 10, the main body 20, the worm wheel 30, the screw 40 and the transmission member.

Specifically, the output shaft of driving motor 10 is worm 11, and main part 20 is integrated into one piece and is injectd the chamber 25 that holds that has two open ends, and one end of worm 11 passes one and opens the end and stretches into and hold chamber 25, and worm wheel 30 locates and holds intracavity 25 and cooperate with worm 11, and the one end of lead screw 40 stretches into another and opens the end and cooperate with the turbine shaft transmission of worm wheel 30, and the periphery of lead screw 40 is located to the driving medium cover and with lead screw 40 threaded connection in order to be linear motion along lead screw 40 when driving motor 10 rotates.

In other words, the driving motor 10 provides a power source for the electric linear pushing rod 100 by being connected with an external power source. The driving motor 10 is connected to the main body 20, wherein the main body 20 is an integrally formed member and a receiving cavity 25 is formed in the main body 20, the receiving cavity 25 has two open ends, as shown in fig. 2, one open end is disposed below the main body 20, and the other open end is disposed at the right side of the main body 20. The output shaft of the driving motor 10 is a worm 11, and the worm 11 extends upwards and extends into the accommodating cavity 25 of the main body 20. A worm wheel 30 is installed in the receiving chamber 25, and a gear provided on an outer circumferential surface of the worm wheel 30 is engaged with the worm 11. A screw 40 may be installed at the other open end of the body 20, and a turbine shaft of the turbine 30 is tightly coupled with the screw 40 when the screw 40 is installed.

When the driving motor 10 drives the worm 11 to rotate and drives the worm wheel 30 to rotate, the driving member is sleeved on the screw rod 40, and an external thread can be arranged outside the screw rod 40, so that the screw rod 40 can be driven to rotate.

From this, according to the utility model discloses electric linear push rod 100 through setting up main part 20 into integrated into one piece spare, and the assembly of the electric linear push rod 100 of being convenient for has improved processing production efficiency to reduce the processing material, reduced manufacturing cost.

According to the utility model discloses an embodiment, one opens the lower extreme that the end is located main part 20, and another opens the outer peripheral face that the end is located main part 20, through opening the end at the lower extreme setting of main part 20, the worm 11 of the driving motor 10 of being convenient for stretches into main part 20 from bottom to top and cooperates with turbine 30, sets up and can be convenient for pack lead screw 40 into main part 20 in the end that opens of outer peripheral face.

In some embodiments of the present invention, the drive motor 10 includes a stator assembly 12, a rotor assembly 13, a back cover 14, and a connector 15.

A chamber with both ends opened is defined in the stator assembly 12, the rotor assembly 13 is provided in the chamber, the rear cover 14 is detachably provided in the open lower end of the chamber and is connected to the stator assembly 12, and both ends of the connecting member 15 are detachably connected to the rear cover 14 and the main body 20, respectively. Therefore, the stator assembly 12 generates a magnetic field after being powered on, and the rotor assembly 13 rotates under the excitation action to convert the electric energy into the mechanical energy. The driving motor 10 may be fixedly coupled with the main body 20 through a coupling 15 and power the turbine 30 and the lead screw 40 by the stator assembly 12 cooperating with the rotor assembly 13. It should be noted that, the main body 44 and the rear cover 47 are adopted to cooperate with each other, so as to replace the combination structure of the three parts of the front cover, the box body and the box cover of the motor in the prior art.

According to the utility model discloses an embodiment is equipped with the mounting hole that link up along its thickness direction on the back lid 14, and connecting piece 15 forms into rectangular shape spare, and the one end of connecting piece 15 is passed the mounting hole and is stretched into and hold the intracavity and link to each other with main part 20. The rear cover 14 can seal the driving motor 10 and can be fixed to the bottom of the driving motor 10 by a connection member 15, and the connection member 15 is connected to the main body 20 after passing through the mounting hole to extend into the receiving cavity of the stator assembly 12 when being mounted. The main body 20 can be effectively prevented from being damaged due to the excessive impulsive force of the driving motor 10 by providing the connection member 15, and the main body 20 can be effectively prevented from being easily separated from the driving motor 10.

Alternatively, the connection 15 is formed as a screw. Since the connection member 15 needs to achieve a good connection effect and needs strong impact resistance, a long screw may be selected as the connection member 15, and the surface of the screw may be treated so that the screw has stronger corrosion resistance, thereby prolonging the service life of the driving motor 10.

According to an embodiment of the present invention, the transmission member is a circular tube, and the electric linear push rod 100 further includes a special-shaped tube 60 and a circular tube 70.

Specifically, one end of the special pipe 60 extends into the other open end and is connected with the main body 20, an installation channel extending along the axial direction of the special pipe 60 is defined in the special pipe 60, the lead screw nut 41 of the lead screw 40 is arranged in the installation channel and is in sliding fit with the special pipe 60, the circular pipe 70 is sleeved in the installation channel, one end of the circular pipe 70 is fixedly connected with the lead screw 40 nut, and the lead screw 40 extends into the circular pipe 70. That is, the special pipe 60 is connected to the main body 20, the special pipe 60 can support and protect, the installation channel is provided inside the special pipe 60 to facilitate installation of the lead screw 40, the lead screw nut 41 is installed on the lead screw 40 during assembly, the internal thread is provided inside the circular pipe 70, and one end of the circular pipe 70 extends into the special pipe 60 and is connected with the lead screw 40 in a matching manner. When the screw 40 starts to rotate, the screw nut 41 and the circular tube 70 can be driven to slide in the special tube 60, so that the circular tube 70 can make a linear motion.

Alternatively, the receiving chamber 25 is provided with a first chamber 251 and a second chamber 252, and the main body 20 includes a main body 21, a mounting member 22, and a locking member 23.

Specifically, a first chamber 251 with an open lower end is defined in the main body 21, a turbine 30 is disposed in the first chamber 251, the main body 21 is detachably connected to the connecting member 15, the mounting member 22 is disposed on one side of the main body 21 and defines a second chamber 252 with two open ends, one end of the profiled tube 60 passes through the second chamber 251 and then extends into the first chamber 252, a notch 24 extending along the axial direction of the profiled tube 60 is disposed on the mounting member 22, and the locking member 23 is disposed in the notch 24 and can adjust the size of the notch 24. Wherein the main body 21 and the mounting member 22 are formed as an integrally molded piece.

It should be noted that the size of the notch 24 is adjusted by the locking member 23, so that the body 20 can be prevented from being damaged due to an assembling error. Furthermore, by providing the locking member 23, the profile tube 60 can be prevented from being detached from the main body 20.

Preferably, the mounting member 22 is formed as a cylindrical member extending in the axial direction of the profile tube 60, and the notch 24 is provided on the outer circumferential edge of the mounting member 22 in the direction adjacent to the other end of the profile tube 60 for ease of use and adjustment.

According to the utility model discloses an embodiment, be equipped with the locking hole with breach 24 intercommunication on the position that installed part 22 and breach 24 correspond, retaining member 23 is formed to locate the locking screw in locking hole.

Alternatively, the mounting member 22 and the profile tube 60 are connected by screw fastening.

Further, the length of the notch 24 in the axial direction of the shaped pipe 60 is smaller than the length of the attachment 22 in the axial direction of the shaped pipe 60, and the length of the notch 24 is limited, thereby improving the reliability and firmness of the shaped pipe 60.

According to an embodiment of the present invention, the outer peripheral surface of the worm wheel 30 is provided with a gear, the gear is matched with the worm 11, and one end of the screw rod 40 is connected with the axis of the worm wheel 30.

In summary, the electric linear push rod 100 employs a combination of a driving motor 10, a main body 20, a worm wheel 30, a screw rod 40 and a transmission member, and a power source is provided by the driving motor 10, when the driving motor 10 rotates, the worm 11 is engaged with the worm wheel 30 to drive the worm wheel 30 and the screw rod 40 to rotate, and the inner threads of the circular tube 70 slide relative to the outer threads of the screw rod 40 to push the circular tube 70 to extend and retract. When the driving motor 10 rotates clockwise, the circular tube 70 can be driven to perform extension linear motion, and when the driving motor 10 runs in the reverse direction, the circular tube 70 can be driven to perform shortening linear motion. The main body 20 is respectively provided with the driving motor 10 and the special pipe 60, the main body 20 is designed into an integrally formed structure, the existing structure of matching the motor, the connecting piece and the linear driving is improved into a motor part and a linear driving part, wherein the connection conversion part and the motor part are combined, the assembly of the electric linear push rod 100 is facilitated, the processing production efficiency is improved, the processing materials are reduced, and the production cost is reduced.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrically powered linear pusher, comprising:

the output shaft of the driving motor is a worm;

a body which is an integral moulding and defines a receiving cavity having two open ends, one end of the worm extending into the receiving cavity through one of the open ends;

the worm wheel is arranged in the accommodating cavity and matched with the worm;

one end of the screw rod extends into the other open end and is in transmission fit with a turbine shaft of the turbine;

the transmission part is sleeved on the periphery of the screw rod and is in threaded connection with the screw rod so as to move linearly along the screw rod when the driving motor rotates.

2. The electromotive linear tappet according to claim 1, wherein one of said open ends is located at a lower end of said main body, and the other of said open ends is located at an outer circumferential surface of said main body.

3. The electric linear pusher of claim 2, wherein the drive motor comprises:

the stator assembly is internally provided with a cavity with two open ends;

a rotor assembly disposed in the chamber;

the rear cover is detachably arranged on an opening at the lower end of the cavity and is connected with the stator assembly;

and the two ends of the connecting piece are respectively connected with the rear cover and the main body in a detachable manner.

4. The electric linear push rod according to claim 3, wherein the rear cover is provided with a mounting hole penetrating in a thickness direction thereof, the connecting member is formed as an elongated member, and one end of the connecting member extends into the accommodating chamber through the mounting hole and is connected to the main body.

5. The electric linear pusher according to claim 4, characterized in that the connecting piece is formed as a screw.

6. The electric linear pusher of claim 4, wherein the transmission member is a circular tube, the electric linear pusher further comprising:

the mechanical tubes, the one end of mechanical tubes stretches into another open the end and with the main part links to each other, the intraductal installation passageway of injecing along its axial extension that has, the screw-nut of lead screw locates the installation passageway and with mechanical tubes sliding fit, the pipe cover is located in the installation passageway, the one end of pipe with screw-nut is fixed continuous, the lead screw extends to set up in the pipe.

7. The electric linear pusher according to claim 6, characterized in that the housing cavity is provided with a first chamber and a second chamber, the body comprising:

the main body is internally provided with the first cavity with the lower end opened, the turbine is arranged in the first cavity, and the main body is detachably connected with the connecting piece;

the mounting piece is arranged on one side of the main body and is limited with the second chamber with two open ends, one end of the special pipe penetrates through the second chamber and then extends into the first chamber, and the mounting piece is provided with a notch extending along the axial direction of the special pipe;

the retaining member, the retaining member is located the breach just can adjust the size of breach.

8. An electrically powered linear pusher according to claim 7, characterised in that the mounting member is formed as a cylindrical member extending in the axial direction of the profile tube, the indentation being provided in the outer periphery of the mounting member in the direction of the other end of the profile tube.

9. The electric linear pushing rod of claim 7 or 8, wherein a locking hole communicated with the notch is formed on the mounting member at a position corresponding to the notch, and the locking member is formed as a locking screw provided on the locking hole.

10. An electrically powered linear pusher according to claim 7, characterised in that the mounting member is fixedly connected to the profile tube.