CN110556968A - Waterproof electric push rod - Google Patents
Waterproof electric push rod Download PDFInfo
- Publication number
- CN110556968A CN110556968A CN201910936749.XA CN201910936749A CN110556968A CN 110556968 A CN110556968 A CN 110556968A CN 201910936749 A CN201910936749 A CN 201910936749A CN 110556968 A CN110556968 A CN 110556968A
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- waterproof
- transmission
- gear
- transmission gear
- push rod
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
- E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
- E05Y2900/132—Doors
Abstract
The invention relates to the field of electric push rods, and discloses a waterproof electric push rod, which comprises: the driving motor is arranged in the waterproof shell; the transmission assembly comprises a transmission gear set, a screw and a nut, the transmission gear set is arranged in the waterproof shell and is meshed with an output shaft of the driving motor, the transmission gear set is connected with the screw, and the screw is in threaded connection with the nut; the sleeve assembly comprises a telescopic pipe and an outer pipe, the telescopic pipe is connected with the nut and sleeved outside the screw rod, and the outer pipe is sleeved outside the telescopic pipe and connected with the waterproof shell; the waterproof assembly comprises a framework oil seal, a waterproof blocking sleeve and a sealing ring, the framework oil seal is sleeved outside the telescopic pipe, one end of the waterproof blocking sleeve is sleeved outside the framework oil seal, the other end of the waterproof blocking sleeve is inserted between the outer pipe and the telescopic pipe, and the sealing ring is arranged between the waterproof blocking sleeve and the outer pipe. This waterproof electric putter's waterproof grade is higher, and water-proof effects is better, can use in some application occasions that need waterproof grade very high.
Description
Technical Field
The invention relates to the field of electric push rods, in particular to a waterproof electric push rod.
Background
The electric push rod is also called a linear driver, is a novel linear actuating mechanism mainly composed of a drive motor push rod, a control device and other mechanisms, and can be considered as an extension of a rotary drive motor in the aspect of structure. The electric push rod is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of the push rod. The device can be used as an execution machine in various simple or complex process flows to realize remote control, centralized control or automatic control. For example, the electric push rod is applied to ventilation control, water inlet control, feeding control and the like of doors and windows of automatic farm raising sheds, and thermostatic control of plant greenhouses, for example, when a temperature controller detects that the temperature is higher than a standard value, the push rod is started to open the doors and the windows, and a fan is started to ventilate; when the temperature controller detects that the temperature is lower than the standard value, the push rod is started to close the door and the window, and the heating device is started.
However, in some applications requiring a very high waterproof rating, for example, when the electric putter is used in an automatic farm raising shed, people may frequently spray liquid medicine into the automatic farm raising shed during a certain period of time in order to prevent epidemic diseases such as bird flu, or people may frequently spray water for cooling in a high temperature season, so that the electric putter is in a very high temperature and humidity environment, or even directly contacts with water. For example, the electric push rod is applied to water, and due to the specific design of the piston rod of the electric push rod and the pressure difference generated during working, certain positive and negative pressure is formed inside the electric push rod, so that when the electric push rod is in a completely-immersed working environment, the hidden danger that outside liquid enters the inside of the electric push rod can be caused.
the waterproof function of the existing electric push rod is mainly concentrated on the waterproof shell, but the communication between the outer pipe and the waterproof shell is neglected, and water vapor is easy to enter the waterproof shell from the gap between the telescopic pipe and the outer pipe. In the use of the electric push rod, people gradually realize the disadvantage and want to achieve the purpose of water prevention through the sealing ring between the inner pipe and the outer pipe, however, the waterproof structure still cannot meet the standard of the waterproof requirement of IP66, and what is more, certain application occasions requiring very high waterproof level are needed, especially when the sealing ring is aged, the waterproof function is completely failed, so that the probability of water entering the inside of the electric push rod and causing the electric push rod to break down is higher.
Disclosure of Invention
The waterproof electric push rod aims to overcome the defects in the prior art, is higher in waterproof grade and better in waterproof effect, can effectively prevent water vapor from entering a waterproof shell from a gap between an extension tube and an outer tube, and can be applied to certain application occasions needing very high waterproof grade.
The purpose of the invention is realized by the following technical scheme:
A waterproof power putter comprising:
The waterproof shell is internally provided with an accommodating cavity, the waterproof shell is provided with a connecting port, and the accommodating cavity is communicated with the connecting port;
the driving motor is arranged in the accommodating cavity;
The transmission assembly comprises a transmission gear set, a screw and a nut, the transmission gear set is arranged in the accommodating cavity and is meshed with an output shaft of the driving motor, the transmission gear set is connected with the screw, and the screw is in threaded connection with the nut;
The sleeve assembly comprises a telescopic pipe and an outer pipe, the telescopic pipe is connected with the nut and sleeved outside the screw rod, the outer pipe is sleeved outside the telescopic pipe and connected to the connecting port, and the telescopic pipe is used for sliding along the axial direction of the outer pipe;
The waterproof assembly comprises a framework oil seal, a waterproof blocking sleeve and a sealing ring, wherein the framework oil seal is sleeved outside the telescopic pipe, one end of the waterproof blocking sleeve is sleeved outside the framework oil seal, the other end of the waterproof blocking sleeve is inserted between the outer pipe and the telescopic pipe, and the sealing ring is arranged between the waterproof blocking sleeve and the outer pipe.
In one of them embodiment, waterproof electric putter still includes the stroke control subassembly, the stroke control subassembly includes count gear train, potentiometre, cam and micro-gap switch, count gear train with driving motor's output shaft meshing, the potentiometre with gear count subassembly is connected, the cam with count gear train connects, micro-gap switch set up in one side of cam, the cam be used for when the motion with micro-gap switch movable contact.
In one embodiment, the stroke control assembly further comprises a first driven gear and a second driven gear, the first driven gear is engaged with the counter gear set, the potentiometer is connected with the first driven gear, the second driven gear is engaged with the counter gear set, and the cam is connected with the second driven gear.
in one embodiment, the counting gear set includes a plurality of counter gears engaged with each other, and the counter gears include an upper counter gear, a lower counter gear, and a transmission rod, and the transmission rod is inserted into the middle of the upper counter gear and the lower counter gear.
In one embodiment, the drive gear set includes a plurality of intermeshing drive gears.
In one embodiment, the transmission gear set includes a first transmission gear, a second transmission gear, a third transmission gear and a transmission shaft, the first transmission gear is engaged with the output shaft of the driving motor, the transmission shaft is inserted into the middle positions of the first transmission gear and the second transmission gear, the second transmission gear is engaged with the third transmission gear, and the third transmission gear is sleeved outside the screw rod.
In one embodiment, the transmission assembly further comprises a transmission pin, and two ends of the insertion pin respectively penetrate through the screw rod to be connected with the inner walls of the two sides of the third transmission gear.
in one embodiment, the transmission assembly further includes two ball bearings, and the two ball bearings are respectively sleeved outside the screw rod and respectively located at two sides of the third transmission gear.
In one embodiment, the sleeve assembly further includes a connector, a first end of the connector is connected to the telescopic tube, and a second end of the connector is provided with a connecting hole.
in one of them embodiment, waterproof electric putter still connects the electric subassembly, connect the electric subassembly to include the electric wire and strengthen the protective sheath, the first end of electric wire with driving motor electricity is connected, the second end of electric wire is worn to locate outside the waterproof case, strengthen the protective sheath cover and locate outside the electric wire and be located the electric wire with the hookup location department of waterproof case.
Compared with the prior art, the invention has at least the following advantages:
The waterproof electric push rod is compact in structure, small in size and light in weight. The driving motor is electrified to work, the output shaft of the driving motor rotates, and then the transmission gear set is driven to rotate, so that the screw rod is driven to rotate, the nut is in threaded fit with the screw rod, the nut can reciprocate along the axial direction of the screw rod, and then the telescopic pipe is driven to reciprocate along the axial direction of the outer pipe, so that the telescopic pipe can drive the load to linearly reciprocate, and the device has the advantages of high bearing capacity, low noise, low running loss, stable transmission and high running reliability. In order to reach higher waterproof grade, this waterproof electric putter reaches higher waterproof grade mainly through the synergistic sealing effect of waterproof shell and waterproof component. Wherein, the waterproof case can completely cut off most external steam. Wherein, waterproof assembly passes through the skeleton oil blanket, waterproof spacer and the reasonable compact overall arrangement of sealing washer, make it have very high leakproofness, can block up the passageway between external steam entering flexible pipe and the outer tube in the at utmost, and then can effectively prevent steam, oil, dust etc. and get into the inside parts with pollution or this waterproof electric putter of corruption of waterproof cover through the space between flexible pipe and the outer tube, can be applied to some application occasions that need the waterproof grade very high, thereby prolong this waterproof electric putter's operating stability and life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a combined structure of a waterproof electric push rod according to an embodiment of the present invention.
Fig. 2 is an exploded view of the waterproof electric putter according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view illustrating a waterproof electric putter according to an embodiment of the present invention.
Fig. 4 is a partial structural schematic view of a waterproof electric push rod according to an embodiment of the present invention.
Fig. 5 is a partial structural schematic view of a waterproof electric push rod according to an embodiment of the present invention.
fig. 6 is a partial structural schematic view of a waterproof electric push rod according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a waterproof case of the waterproof electric putter according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of an intelligent door control system according to an embodiment of the present invention.
Fig. 9 is a schematic partial structure diagram of an intelligent door control system according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment, referring to fig. 2, 3 and 6, a waterproof electric putter 10 includes a waterproof case 110, a driving assembly 120, a transmission assembly 130, a sleeve assembly 140 and a waterproof assembly 150; a containing cavity is formed in the waterproof case 110, a connecting port 1122 is formed in the waterproof case 110, and the containing cavity is communicated with the connecting port 1122; the driving assembly 120 is disposed in the accommodating cavity, and the driving assembly 120 includes a driving motor 121; the transmission assembly 130 comprises a transmission gear set 131, a screw 132 and a nut 133, the transmission gear set 131 is arranged in the accommodating cavity and is meshed with an output shaft of the driving motor 121, the transmission gear set 131 is connected with the screw 132, and the screw 132 is in threaded connection with the nut 133; the sleeve assembly 140 includes a telescopic tube 141 and an outer tube 142, the telescopic tube 141 is connected to the nut 133 and sleeved outside the screw 132, the outer tube 142 is sleeved outside the telescopic tube 141 and connected to the connection port 1122, and the telescopic tube 141 is configured to slide along an axial direction of the outer tube 142; the waterproof assembly 150 comprises a framework oil seal 151, a waterproof blocking sleeve 152 and a sealing ring 153, the framework oil seal 151 is sleeved outside the telescopic pipe 141, one end of the waterproof blocking sleeve 152 is sleeved outside the framework oil seal 151, the other end of the waterproof blocking sleeve 152 is inserted between the outer pipe 142 and the telescopic pipe 141, and the sealing ring 153 is arranged between the waterproof blocking sleeve 152 and the outer pipe 142.
It should be noted that the waterproof electric push rod 10 has a compact structure, a small volume and a light weight. The driving motor 121 is powered on to work, the output shaft of the driving motor 121 rotates to drive the transmission gear set 131 to rotate, the screw 132 is driven to rotate, the nut 133 is in threaded fit with the screw 132, the nut 133 makes reciprocating motion along the axial direction of the screw 132, and then the telescopic pipe 141 is driven to make reciprocating motion along the axial direction of the outer pipe 142, so that the telescopic pipe 141 can drive load to make linear reciprocating motion, and the telescopic pipe has the advantages of high bearing capacity, low noise, low operation loss, stable transmission and high operation reliability. In order to achieve a higher waterproof grade, the waterproof electric putter 10 achieves the higher waterproof grade mainly through the cooperative sealing effect of the waterproof case 110 and the waterproof assembly 150. Wherein, waterproof shell 110 can isolate most external steam. Wherein, waterproof subassembly 150 passes through the reasonable compact overall arrangement of skeleton oil blanket 151, waterproof spacer 152 and sealing washer 153, make it have very high leakproofness, can block up the passageway that external steam got into between flexible pipe 141 and the outer tube 142 to the at utmost, and then can effectively prevent steam, oil, dust etc. and get into the inside parts with pollution or corruption this waterproof electric putter 10 of waterproof shell 110 through the space between flexible pipe 141 and the outer tube 142, can be applied to some application occasions that need waterproof level very high, thereby the operating stability and the life of this waterproof electric putter 10 of extension.
Further, referring to fig. 2, the screw 132 is provided with an external thread, and the nut 133 is provided with an internal thread, which is engaged with the internal thread.
For further improving the waterproof effect of the waterproof electric push rod 10, for example, please refer to fig. 3 and 6, the inner wall of the framework oil seal 151 is attached to the outer wall of the telescopic tube 141, the inner wall of one end of the waterproof blocking sleeve 152 is attached to the outer wall of the framework oil seal 151, the outer wall of one end of the waterproof blocking sleeve 152 is located outside the outer wall of the outer tube 142, the inner wall of the other end of the waterproof blocking sleeve 152 is attached to the outer wall of the telescopic tube 141, and the outer wall of the other end of the waterproof blocking sleeve 152 is attached to the inner wall of the outer tube 142. Thus, the waterproof effect of the waterproof electric putter 10 can be further improved.
Further, referring to fig. 3, the section of the waterproof sleeve 152 is "Z" shaped.
Further, referring to fig. 2 and 4, the waterproof electric push rod 10 further includes a stroke control assembly 160, the stroke control assembly 160 includes a counter gear set 161, a potentiometer 163, a cam 165 and a micro switch 166, the counter gear set 161 is engaged with an output shaft of the driving motor 121, the potentiometer 163 is connected with the gear counter assembly, the cam 165 is connected with the counter gear set 161, the micro switch 166 is disposed at one side of the cam 165, and the cam 165 is used for being in movable contact with the micro switch 166 during movement. It should be noted that, after the driving motor 121 is powered on and started, the output shaft of the driving motor 121 rotates to drive the counting gear set 161 to rotate, the potentiometer 163 sequentially changes the potential parameters along with the rotation of the counting gear set 161 until the potential parameters reach the preset values in the automatic control system, the counting gear set 161 starts to drive the cam 165 to rotate, and when the cam 165 rotates to a certain angle, the protrusion 1651 of the cam 165 triggers the micro switch 166 to power off the motor, so that the telescopic tube 141 stops moving. Therefore, the stroke control precision can be improved, so that the waterproof electric push rod 10 has higher motion precision and is safer and more reliable.
Further, referring to fig. 4, the cam 165 is a pointed cam or an arc cam.
For further improving the motion accuracy of the waterproof electric push rod 10, for example, referring to fig. 4, the stroke control assembly 160 further includes a first driven gear 162 and a second driven gear 164, the first driven gear 162 is engaged with the counter gear set 161, the potentiometer 163 is connected to the first driven gear 162, the second driven gear 164 is engaged with the counter gear set 161, and the cam 165 is connected to the second driven gear 164. Thus, the movement accuracy of the waterproof electric putter 10 can be further improved.
for further improving the movement precision of the waterproof electric push rod 10, for example, referring to fig. 4, the counting gear set 161 includes a plurality of counter gears engaged with each other, the counter gears include an upper counter gear 1611, a lower counter gear 1612 and a transmission rod 1613, and the transmission rod 1613 is inserted into the middle positions of the upper counter gear 1611 and the lower counter gear 1612. Thus, the movement accuracy of the waterproof electric putter 10 can be further improved.
further, referring to fig. 2 and 4, the transmission gear set 131 includes a plurality of transmission gears meshed with each other. It should be noted that, the speed-adjusting transmission of the power of the driving motor 121 is performed through a plurality of transmission gears meshed with each other, and compared with the conventional worm transmission mechanism, the transmission ratio is more accurate, the transmission reliability is higher, the transmission power is higher, the service life is longer, and the structure is simpler.
For example, referring to fig. 4, the transmission gear set 131 includes a first transmission gear 1311, a second transmission gear 1312, a third transmission gear 1313 and a transmission shaft 1314, the first transmission gear 1311 is engaged with the output shaft of the driving motor 121, the transmission shaft 1314 is inserted into the middle positions of the first transmission gear 1311 and the second transmission gear 1312, the second transmission gear 1312 is engaged with the third transmission gear 1313, and the third transmission gear 1313 is sleeved outside the screw 132. Thus, the transmission reliability and the transmission accuracy of the waterproof electric push rod 10 can be further improved.
In order to further improve the transmission reliability and the transmission accuracy of the waterproof electric putter 10, for example, referring to fig. 5, the transmission assembly 130 further includes a transmission pin 134, and two ends of the pin respectively penetrate through the screw 132 and are connected with two side inner walls of the third transmission gear 1313. Thus, the transmission reliability and the transmission accuracy of the waterproof electric push rod 10 can be further improved.
In order to further improve the transmission reliability and the transmission accuracy of the waterproof electric push rod 10, for example, referring to fig. 5, the transmission assembly 130 further includes two outer end caps 136, and the two outer end caps 136 are respectively sleeved outside the screw 132 and located at two sides of the third transmission gear 1313. The outer end cap 136 is positioned between the third drive gear 1313 and the ball bearing 135. The outer end cover 136 is provided with an arc-shaped groove 1361, and the arc-shaped groove 1361 is attached to the outer wall of the transmission tip 134. Thus, the transmission reliability and the transmission accuracy of the waterproof electric push rod 10 can be further improved.
Further, referring to fig. 5, the outer end cap 136 is a circular ring structure.
Further, referring to fig. 5, the transmission assembly 130 further includes two ball bearings 135, and the two ball bearings 135 are respectively sleeved outside the screw 132 and respectively located at two sides of the third transmission gear 1313. It should be noted that, by the symmetrical acting force of the two ball bearings 135 to the screw 132, the friction force in the power transmission process is reduced and the power transmission efficiency is improved in a rolling manner, so that the noise generated when the screw 132 moves is reduced.
Further, referring to fig. 1, the sleeve assembly 140 further includes a connector 143, a first end of the connector 143 is connected to the extension tube 141, and a second end of the connector 143 is provided with a connecting hole 1431. It should be noted that the fixing of the load on the extension tube 141 can be facilitated by the connecting hole 1431 of the joint 143, for example, the push rod can be firmly connected to the load by a rope connection or a bolt connection at the position of the connecting hole 1431.
Further, referring to fig. 1, the waterproof electric putter 10 further includes an electrical connection assembly 170, the electrical connection assembly 170 includes an electrical wire 171 and a reinforcing protective sleeve 172, a first end of the electrical wire 171 is electrically connected to the driving motor 121, a second end of the electrical wire 171 is disposed through the waterproof case 110, and the reinforcing protective sleeve 172 is sleeved outside the electrical wire 171 and located at a connection position between the electrical wire 171 and the waterproof case 110. In general, the wires 171 are worn out more at the position connected to the waterproof case 110, and the reinforcing protective sleeve 172 reinforces the protective wires 171 at the position connected to the waterproof case 110, thereby preventing the wires 171 from being worn out and broken.
For further enhancing the reinforced protection effect of the waterproof electric push rod 10 on the electric wire 171, for example, referring to fig. 1, the reinforced protection sleeve 172 includes a bottom sleeve 1721 and a top sleeve 1722, a first end of the bottom sleeve 1721 is connected to the outer wall of the waterproof shell 110, a second end of the bottom sleeve 1721 is connected to the top sleeve 1722, and a diameter of the bottom sleeve 1721 is larger than a diameter of the top sleeve 1722. It should be noted that, by increasing the diameter of bottom cover 1721, the contact surface between bottom cover 1721 and the outer wall of waterproof shell 110 is increased, so as to enhance the connection firmness between reinforcing protective sheath 172 and waterproof shell 110, so that reinforcing protective sheath 172 can better reinforce protective wire 171.
In order to further enhance the reinforcing protection effect of the waterproof electric putter 10 on the electric wire 171, for example, referring to fig. 1, the electric connection assembly 170 further includes an insulating protection film 173, the insulating protection film 173 is attached to the outer wall of the electric wire 171, and the reinforcing protection sleeve 172 is attached to the outer wall of the insulating protection film 173. In this way, the electric wire 171 is protected from electric shock by the insulating protective film 173, so that electric shock accidents caused by people touching the electric wire 171 can be avoided.
For example, referring to fig. 2 and 7, the waterproof case 110 includes an upper case 111, a lower case 112 and a connecting bolt 113, the upper case 111 is connected to the lower case 112 through the connecting bolt 113, an outer wall of the upper case 111 extends outward to form an upper protrusion 1111, the upper protrusion 1111 is provided with an upper screw hole, an outer wall of the lower case 112 extends outward to form a lower protrusion 1121, the lower protrusion 1121 is provided with a lower screw hole, a first end of the connecting bolt 113 is screwed to the upper screw hole, and a second end of the connecting bolt 113 is screwed to the lower screw hole. It should be noted that, the upper casing 111 and the lower casing 112 are separated from each other, so that the internal components are conveniently installed in the waterproof casing 110, and the upper casing 111 and the lower casing 112 can be firmly connected through the connecting bolt 113, which is beneficial to the overall firmness and sealing performance of the waterproof casing 110, so that the waterproof casing 110 has better dustproof and waterproof effects.
for further improving the waterproof effect of the waterproof electric push rod 10, for example, referring to fig. 7, the waterproof housing 110 includes a waterproof end sleeve 114, one end of the waterproof end sleeve 114 is sleeved on the outer wall of the connecting port 1122, and the other end of the waterproof end sleeve 114 is sleeved on the outer wall of the outer tube 142. It should be noted that, the waterproof end sleeve 114 is sealed at the joint of the outer tube 142 and the waterproof case 110, so as to effectively prevent water vapor and dust from entering the waterproof case 110 through the gap between the connecting port 1122 and the outer tube 142, and further improve the waterproof effect of the waterproof electric putter 10.
For further improving the waterproof effect of the waterproof electric push rod 10, for example, please refer to fig. 7, an inner wall of one end of the waterproof end sleeve 114 is attached to an outer wall of the connecting port 1122, and an inner wall of the other end of the waterproof end sleeve 114 is attached to an outer wall of the outer tube 142. Thus, the waterproof effect of the waterproof electric putter 10 can be further improved.
Further, referring to fig. 7, the waterproof end sleeve 114 is annular.
Further, referring to fig. 2 and 4, the driving assembly 120 further includes a PCB 122 and a relay 123, the wire 171 is electrically connected to the relay 123, the relay 123 is electrically connected to the PCB 122, and the PCB 122 is electrically connected to the driving motor 121, the potentiometer 163, and the micro switch 166. The external current is introduced into the wire 171, and is introduced into the PCB 122 through the relay 123, and the power is supplied to the motor, the potentiometer 163 and the micro switch 166 from the PCB 122, so as to control the operation of the driving motor 121, the potentiometer 163 and the micro switch 166, and the received preset value is transmitted to the potentiometer 163 from the PCB 122.
In one embodiment, please refer to fig. 8 and 9, an intelligent door control system 20 includes the waterproof electric push rod 10, a connecting member 210, a door 220, a pressure sensor 230 and a start button 240, wherein the door 220 is provided with a receiving groove 221, a bayonet 2211 is formed by an inner recess of a wall of the receiving groove 221, the connecting member 210 includes a connecting post 211 and a movable clamping post 212, one end of the connecting post 211 is hinged to the connector 143 of the waterproof electric push rod 10, the other end of the connecting post 211 is connected to the movable clamping post 212, the movable clamping post 212 is clamped to the bayonet 2211, the pressure sensor 230 is disposed in the receiving groove 221, the movable clamping post 212 is configured to move in the receiving groove 221 and contact with the pressure sensor 230, the pressure sensor 230 is electrically connected to the electric wire 171 of the waterproof electric push rod 10, the start button 240 is electrically connected to a connection circuit of the wire 171 and the external power source, and the start button 240 is used to turn on or off the connection circuit.
it should be noted that the door body 220 is hinged to the wall 250, one end of the waterproof electric push rod 10, which is provided with the driving motor 121, is fixedly mounted to the wall 250, when the door is opened, the start button 240 is pressed to conduct the connection circuit, the driving motor 121 of the waterproof electric push rod 10 rotates or rotates to drive the extension tube 141 to extend or retract, so that the door body 220 moves in a direction away from or close to the wall, thereby completing the automatic opening and closing operation of the door. Particularly, when door body 220 receives the resistance at the removal in-process, waterproof electric putter 10's working resistance increases to make connecting piece 210's pressure increase, remove card post 212 and take place to remove in holding tank 221 with the pressure release, and then reduce the pressure that waterproof electric putter 10 received, thereby guarantee waterproof electric putter 10 operating stability, prolong waterproof electric putter 10's life. If the door 220 is subjected to too much resistance in the moving process, for example, when the door 220 is caught by a person, the movable clamping column 212 cannot smoothly release the pressure, and when the pressure sensor 230 in contact with the connecting piece 210 senses that the pressure value is increased to a preset threshold value, the driving motor 121 is controlled to stop rotating or revolving, so as to improve the automation, intelligence and safety of the intelligent door control system 20. After receiving the preset threshold value transmitted by the pressure sensor 230, the PCB 122 stops rotating or revolving the driving motor 121 by the cooperation of the potentiometer 163 and the micro switch 166.
In order to further ensure that the intelligent door control system 20 can smoothly complete the opening and closing of the door, for example, referring to fig. 8, the central axis of the extension tube 141 of the waterproof electric push rod 10 and a side surface of the door body 220 close to the extension tube 141 form an inclination angle, and the inclination angle is 30 ° to 60 °. Thus, the intelligent door control system 20 can be further ensured to smoothly complete opening and closing of the door.
In order to further ensure that the connecting member 210 always contacts the pressure sensors 230 when moving, for example, referring to fig. 9, the number of the pressure sensors 230 is at least 3, at least 3 of the pressure sensors 230 are uniformly arranged in the accommodating groove 221 at intervals, and the length of the movable clamping column 212 is at least half of the length of the accommodating groove 221. In this way, it is ensured that the connection member 210 is always in contact with the pressure sensor 230 when moving.
Further, please refer to fig. 9, the intelligent door control system 20 further includes a hinge 250, the hinge 250 includes a rotating shaft and two blocking pieces, a hinge hole 2111 is formed at one end of the connecting column 211, the rotating shaft is inserted into the connecting hole 1431 and the hinge hole 2111, and the two blocking pieces are respectively sleeved at two ends of the rotating shaft. In this way, the connection column 211 can be hinged to the waterproof electric putter 10.
An embodiment, door body 220 includes cement substrate layer, glass fiber cloth layer, aluminium foil layer and the porous ceramic pearl surface course that sets gradually from outside to inside, wherein pastes through epoxy between arbitrary adjacent two-layer, the porous ceramic pearl surface course includes a plurality of porous ceramic pearls of evenly laying, it fills the chamber to have seted up in the porous ceramic pearl, it has polyurethane foam to fill the intracavity packing. It should be noted that, the existing door body is generally made of steel, is too heavy, and has poor heat preservation and noise reduction effects. And waterproof electric putter 10 is very little, and thrust is limited, to too heavy steel door, is difficult to promote, and this door body 220 is through the cement stratum basale, glass fiber cloth layer, aluminium foil layer and the porous ceramic pearl surface course that sets gradually from outside to inside, can make door body 220 have superstrong fire-resistant, thermal-insulated and noise insulation effect of making an uproar that keeps warm, has not only significantly reduced door body 220's weight, has still improved door body 220's compressive strength.
Compared with the prior art, the invention has at least the following advantages:
The waterproof electric push rod 10 is compact in structure, small in size and light in weight. The driving motor 121 is powered on to work, the output shaft of the driving motor 121 rotates to drive the transmission gear set 131 to rotate, the screw 132 is driven to rotate, the nut 133 is in threaded fit with the screw 132, the nut 133 makes reciprocating motion along the axial direction of the screw 132, and then the telescopic pipe 141 is driven to make reciprocating motion along the axial direction of the outer pipe 142, so that the telescopic pipe 141 can drive load to make linear reciprocating motion, and the telescopic pipe has the advantages of high bearing capacity, low noise, low operation loss, stable transmission and high operation reliability. In order to achieve a higher waterproof grade, the waterproof electric putter 10 achieves the higher waterproof grade mainly through the cooperative sealing effect of the waterproof case 110 and the waterproof assembly 150. Wherein, waterproof shell 110 can isolate most external steam. Wherein, waterproof subassembly 150 passes through the reasonable compact overall arrangement of skeleton oil blanket 151, waterproof spacer 152 and sealing washer 153, make it have very high leakproofness, can block up the passageway that external steam got into between flexible pipe 141 and the outer tube 142 to the at utmost, and then can effectively prevent steam, oil, dust etc. and get into the inside parts with pollution or corruption this waterproof electric putter 10 of waterproof shell 110 through the space between flexible pipe 141 and the outer tube 142, can be applied to some application occasions that need waterproof level very high, thereby the operating stability and the life of this waterproof electric putter 10 of extension.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A waterproof electric putter, comprising:
The waterproof shell is internally provided with an accommodating cavity, the waterproof shell is provided with a connecting port, and the accommodating cavity is communicated with the connecting port;
the driving motor is arranged in the accommodating cavity;
The transmission assembly comprises a transmission gear set, a screw and a nut, the transmission gear set is arranged in the accommodating cavity and is meshed with an output shaft of the driving motor, the transmission gear set is connected with the screw, and the screw is in threaded connection with the nut;
The sleeve assembly comprises a telescopic pipe and an outer pipe, the telescopic pipe is connected with the nut and sleeved outside the screw rod, the outer pipe is sleeved outside the telescopic pipe and connected to the connecting port, and the telescopic pipe is used for sliding along the axial direction of the outer pipe;
The waterproof assembly comprises a framework oil seal, a waterproof blocking sleeve and a sealing ring, wherein the framework oil seal is sleeved outside the telescopic pipe, one end of the waterproof blocking sleeve is sleeved outside the framework oil seal, the other end of the waterproof blocking sleeve is inserted between the outer pipe and the telescopic pipe, and the sealing ring is arranged between the waterproof blocking sleeve and the outer pipe.
2. The waterproof electric push rod according to claim 1, further comprising a stroke control assembly, wherein the stroke control assembly comprises a counting gear set, a potentiometer, a cam and a microswitch, the counting gear set is engaged with an output shaft of the driving motor, the potentiometer is connected with the gear counting assembly, the cam is connected with the counting gear set, the microswitch is arranged on one side of the cam, and the cam is used for being in movable contact with the microswitch during movement.
3. The waterproof power putter of claim 2, wherein the stroke control assembly further comprises a first driven gear and a second driven gear, the first driven gear is engaged with the counter gear set, the potentiometer is connected to the first driven gear, the second driven gear is engaged with the counter gear set, and the cam is connected to the second driven gear.
4. The waterproof electric push rod according to claim 3, wherein the counting gear set comprises a plurality of counter gears engaged with each other, the counter gears comprise an upper counter gear, a lower counter gear and a transmission rod, and the transmission rod is arranged at the middle positions of the upper counter gear and the lower counter gear in a penetrating manner.
5. The waterproof power putter of claim 1, wherein the drive gear set comprises a plurality of intermeshing drive gears.
6. The waterproof electric push rod according to claim 5, wherein the transmission gear set comprises a first transmission gear, a second transmission gear, a third transmission gear and a transmission shaft, the first transmission gear is meshed with an output shaft of the driving motor, the transmission shaft is arranged at the middle positions of the first transmission gear and the second transmission gear in a penetrating manner, the second transmission gear is meshed with the third transmission gear, and the third transmission gear is sleeved outside the screw rod.
7. The waterproof electric push rod as claimed in claim 6, wherein the transmission assembly further comprises a transmission pin, and two ends of the insertion pin respectively penetrate through the screw rod to be connected with the inner walls of the two sides of the third transmission gear.
8. The waterproof electric push rod according to claim 7, wherein the transmission assembly further comprises two ball bearings, and the two ball bearings are respectively sleeved outside the screw rod and respectively located at two sides of the third transmission gear.
9. The waterproof electric push rod according to claim 1, wherein the sleeve assembly further comprises a joint, a first end of the joint is connected with the telescopic tube, and a second end of the joint is provided with a connecting hole.
10. The waterproof electric push rod according to claim 1, further comprising an electrical connection assembly, wherein the electrical connection assembly comprises an electrical wire and a reinforcing protective sleeve, a first end of the electrical wire is electrically connected with the driving motor, a second end of the electrical wire penetrates through the waterproof case, and the reinforcing protective sleeve is sleeved outside the electrical wire and located at a connection position of the electrical wire and the waterproof case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936749.XA CN110556968A (en) | 2019-09-29 | 2019-09-29 | Waterproof electric push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910936749.XA CN110556968A (en) | 2019-09-29 | 2019-09-29 | Waterproof electric push rod |
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|---|---|
| CN110556968A true CN110556968A (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910936749.XA Pending CN110556968A (en) | 2019-09-29 | 2019-09-29 | Waterproof electric push rod |
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| CN111146896A (en) * | 2019-12-25 | 2020-05-12 | 北京航天控制仪器研究所 | Underwater sealing structure of electric push-pull rod |
| EP3916968A1 (en) * | 2020-05-25 | 2021-12-01 | Sujiao Li | Electric push rod |
| CN114157083A (en) * | 2021-12-08 | 2022-03-08 | 珠海格力电器股份有限公司 | Motor assembly and motor |
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| CN114157083B (en) * | 2021-12-08 | 2023-07-18 | 珠海格力电器股份有限公司 | Motor assembly and motor |
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