CN202495837U - Pen-based direct current linear driver with a micro switch - Google Patents
Pen-based direct current linear driver with a micro switch Download PDFInfo
- Publication number
- CN202495837U CN202495837U CN201220017778XU CN201220017778U CN202495837U CN 202495837 U CN202495837 U CN 202495837U CN 201220017778X U CN201220017778X U CN 201220017778XU CN 201220017778 U CN201220017778 U CN 201220017778U CN 202495837 U CN202495837 U CN 202495837U
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- China
- Prior art keywords
- direct current
- sensitive switch
- end cover
- cover
- housing
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Abstract
The utility model discloses a pen-based direct current linear driver with a micro switch, comprising an outer tube, an upper end cover, a lower end cover and a screw rod. Two ends of the outer tube are fixedly connected with the upper end cover and the lower end cover respectively, the outer tube is provided with a bearing sleeve and a direct current motor that can rotate bi-directionally inside, the direct current motor drives the screw rod to rotate through a gear deceleration system. The screw rod can be rotatably supported inside the bearing sleeve and is movably provided with a nut on which an inner tube is fixed, and the other end of the inner tube is movably sheathed on the upper end cover and is connected with a rotation device. A lower micro switch is arranged on the bearing sleeve, an upper micro switch is arranged on the upper end cover, a circuit control board is fixed on the lower end cover, and the upper micro switch and the lower micro switch are respectively connected with the circuit control board through wires. The pen-based direct current linear driver with a micro switch provided by the utility model has the advantages of compact structure, less space occupation, elegant appearance and low cost, and is widely used in medical equipment, household facilities and other areas.
Description
Technical field
The utility model relates to a kind of plant equipment that can reciprocating sliding, specifically, relates to a kind of pen type direct current Linear actuator with sensitive switch.
Background technology
At present, the Linear actuator majority under the prior art is to adopt electrical axis and the perpendicular or parallel structure of screw axis.Mostly motor gearbox is open type, and through the multistage bolt and nut that drives to.Their shortcoming is that installation dimension is big, and parts expose, and profile is attractive in appearance inadequately, difficult installation in less space, and the outdoor application barrier propterty is poor.In addition; There is not the Linear actuator of built-in sensitive switch need sensitive switch be installed externally or sensitive switch is implemented in the end of travel automatic circuit break function; Perhaps through detecting the motor rotation blockage electric current; Perhaps through judgement driver running statuses such as detection hall signals, above control mode is complicated, cost is higher, is unfavorable for promoting the use of.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, and the pen type direct current Linear actuator of a kind of compact conformation, lower-cost band sensitive switch is provided.
The technical scheme that realizes the utility model purpose is: a kind of pen type direct current Linear actuator with sensitive switch, and it comprises outer tube, upper end cover, bottom end cover and screw rod, the two ends of outer tube are fixedly connected with bottom end cover with upper end cover respectively; Bearing holder (housing, cover) and direct current machine that can two-way rotation are housed in the outer tube, and this direct current machine is through the gear reduction system drive screw turns, and this screw rod can be rotated to support in the bearing holder (housing, cover); Nut is housed on the screw rod movably; Be fixed with interior pipe on the nut, the other end of interior pipe is sleeved on the upper end cover movably, and this end of interior pipe is connected with whirligig; On the described bearing holder (housing, cover) sensitive switch is installed down; On the described upper end cover sensitive switch is installed, is fixed with the circuit control board on the bottom end cover, last sensitive switch is connected with the circuit control board respectively through lead with following sensitive switch.
Further, described bearing holder (housing, cover) is provided with first concave plane, and described sensitive switch down is installed on first concave plane.
Further, described upper end cover is provided with second concave plane, and the described sensitive switch of going up is installed on second concave plane.
Further, have first hole on the described bearing holder (housing, cover), have second hole on the described upper end cover, be inserted with wire-passing tube in first hole and second hole, have the tube seat that passes wire-passing tube on the described nut.
Further, have first groove on the described bearing holder (housing, cover), have second groove on the described direct current machine, the lead of sensitive switch is connected with the circuit control board after passing first groove and second groove under the described connection.
Further; Have endless groove on the described upper end cover; Have three-flute on the described bearing holder (housing, cover); Have on the described direct current machine and concentric the 4th groove of three-flute, the lead of sensitive switch is wrapped on the endless groove in the described connection, and is connected with the circuit control board after passing wire-passing tube, three-flute and the 4th groove.
Further, described whirligig comprises connector, and an end of connector is connected with interior pipe; The other end is through the rotating cup that has been threaded; Two plate plane bearings are installed in the rotating cup, are set with shouldered swivel head in the rotating cup, convex shoulder is between two plate plane bearings.
After having adopted technique scheme, the utility model compact conformation, it is little to take up room; Elegant in appearance; Cost is lower, becomes the rectilinear motion of driver to rotatablely moving of direct current machine, utilizes DC motor positive and negative rotation to accomplish the stretching motion of Linear actuator; And utilize the automatic stop motion of going up sensitive switch and following sensitive switch realization driver, be widely used in fields such as medicine equipment, home amenity.
Description of drawings
Fig. 1 is the structure assembling exploded view of pen type direct current Linear actuator of the band sensitive switch of the utility model;
Fig. 2 is the circuit theory diagrams of the circuit control board of the utility model;
Fig. 3 is the stereogram of the bearing holder (housing, cover) of the utility model;
Fig. 4 is the left parallax stereogram of Fig. 3;
Fig. 5 is the stereogram of the nut of the utility model;
Fig. 6 is the stereogram of the upper end cover of the utility model;
Fig. 7 is the structure cutaway view of the whirligig of the utility model.
Embodiment
For the content that makes the utility model is expressly understood more easily, below according to specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation,
As shown in Figure 1, a kind of pen type direct current Linear actuator with sensitive switch, it comprises outer tube 4, upper end cover 11, bottom end cover 1 and screw rod 7; The two ends of outer tube 4 are fixedly connected with bottom end cover 1 with upper end cover 11 respectively; Bearing holder (housing, cover) 6 and direct current machine 5 that can two-way rotation are housed in the outer tube 4, and this direct current machine 5 rotates through gear reduction system drive screw 7, and this screw rod 7 can be rotated to support in the bearing holder (housing, cover) 6 through bearing; Nut 8 is housed on the screw rod 7 movably; Pipe 9 in being fixed with on the nut 8, the other end of interior pipe 9 is sleeved on the upper end cover 11 movably, and this end of interior pipe 9 is connected with whirligig; On the described bearing holder (housing, cover) 6 sensitive switch 14 is installed down; On the described upper end cover 11 sensitive switch 13 is installed, is fixed with circuit control board 2 on the bottom end cover 1, last sensitive switch 13 is connected with circuit control board 2 respectively through lead with following sensitive switch 14.
As shown in Figure 3, described bearing holder (housing, cover) 6 is provided with first concave plane 17, and described sensitive switch 14 down is installed on first concave plane 17.
As shown in Figure 6, described upper end cover 11 is provided with second concave plane 20, and the described sensitive switch 13 of going up is installed on second concave plane 20.
Like Fig. 1, shown in 3 ~ 6, have first hole 16 on the described bearing holder (housing, cover) 6, have the second hole 11-1 on the described upper end cover 11, be inserted with wire-passing tube 10 in first hole 16 and the second hole 11-1, have the tube seat 19 that passes wire-passing tube 10 on the described nut 8.
Like Fig. 1, shown in 3, have first groove 18 on the described bearing holder (housing, cover) 6, have second groove 15 on the described direct current machine 5, the lead of sensitive switch 14 passes first groove 18 and is connected with circuit control board 2 with second groove 15 back under the described connection.
Like Fig. 1, shown in 3 ~ 6; Have endless groove 21 on the described upper end cover 11; Have three-flute 6-1 on the described bearing holder (housing, cover) 6; Have with three-flute 6-1 concentric the 4th groove on the described direct current machine 5, the lead of sensitive switch 13 is wrapped on the endless groove 21 in the described connection, and is connected with circuit control board 2 after passing wire-passing tube 10, three-flute 6-1 and the 4th groove.
Like Fig. 1, shown in 7; Described whirligig comprises connector 22; One end of connector 22 is connected with interior pipe 9, and the other end is equipped with two plate plane bearings 24 through the rotating cup 23 that has been threaded in the rotating cup 23; Be set with the swivel head 25 of band convex shoulder 25-1 in the rotating cup 23, convex shoulder 25-1 is between two plate plane bearings 24.
The operation principle of the utility model is following:
When the utility model uses; Whirligig 12 drives object with quilt and is connected; Because bearing holder (housing, cover) 6 is fixedly connected on the outer tube 4 with upper end cover 11; The two ends of conduit 10 are inserted in respectively in the second hole 11-1 of first hole 16 and upper end cover 11 of bearing holder (housing, cover) 6, pass the tube seat 19 of nut 8 again, so nut 8 all can not rotate with interior pipe 9.Direct current machine 5 energisings; Drive 7 rotations of reduction gear device drive screw, nut 8 is moving linearly on screw rod 7, and the interior pipe 9 that is fixed on the nut 8 is also done rectilinear motion; Thereby driven rotary device 12 is done rectilinear motion, drives at last and is driven the object moving linearly.Transferring control through direct current machine 5 positive and negative is driven stretching of object and is contracted.
When direct current machine 5 energisings, when drive screw 7 was rotated counterclockwise, nut 8 moved to bearing holder (housing, cover) 6 ends; Driven the object withdrawal, when nut 8 moves to least significant end, when contacting with bearing holder (housing, cover) 6; The end face of nut 8 can be pressed and touched down sensitive switch 14; At this moment circuit cuts off, direct current machine 5 outages, and driver stops action.
When direct current machine 5 energisings, when drive screw 7 turned clockwise, nut 8 moved to upper end cover 11 ends; Driven object and stretched out, when nut 8 moves to top, when contacting with front end housing 11; The end face of nut 8 can be pressed and touched sensitive switch 13; At this moment circuit cuts off, direct current machine 5 outages, and driver stops action.
When nut 8 was between bearing holder (housing, cover) 6 and the upper end cover 11, last sensitive switch 13 was not all touched by pressure with following sensitive switch 14, at this moment if give direct current machine 5 energisings; Can realize that screw rod 7 turns clockwise; Driven object and stretched out, can be realized that also screw rod 7 is rotated counterclockwise, driven the object withdrawal.
Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (7)
1. pen type direct current Linear actuator with sensitive switch; It comprises outer tube (4), upper end cover (11), bottom end cover (1) and screw rod (7); The two ends of outer tube (4) are fixedly connected with bottom end cover (1) with upper end cover (11) respectively; Bearing holder (housing, cover) (6) and direct current machine (5) that can two-way rotation are housed in the outer tube (4), and this direct current machine (5) rotates through gear reduction system drive screw (7), and this screw rod (7) can be rotated to support in the bearing holder (housing, cover) (6); Nut (8) is housed on the screw rod (7) movably; Be fixed with interior pipe (9) on the nut (8), the other end of interior pipe (9) is sleeved on the upper end cover (11) movably, and this end of interior pipe (9) is connected with whirligig; It is characterized in that: sensitive switch (14) is installed down on the described bearing holder (housing, cover) (6); Sensitive switch (13) is installed on the described upper end cover (11), is fixed with circuit control board (2) on the bottom end cover (1), last sensitive switch (13) is connected with circuit control board (2) respectively through lead with following sensitive switch (14).
2. the pen type direct current Linear actuator of band sensitive switch according to claim 1 is characterized in that: described bearing holder (housing, cover) (6) is provided with first concave plane (17), and described sensitive switch (14) down is installed on first concave plane (17).
3. the pen type direct current Linear actuator of band sensitive switch according to claim 1 is characterized in that: described upper end cover (11) is provided with second concave plane (20), and the described sensitive switch (13) of going up is installed on second concave plane (20).
4. the pen type direct current Linear actuator of band sensitive switch according to claim 1; It is characterized in that: have first hole (16) on the described bearing holder (housing, cover) (6); Have second hole (11-1) on the described upper end cover (11); Be inserted with wire-passing tube (10) in first hole (16) and second hole (11-1), have the tube seat (19) that passes wire-passing tube (10) on the described nut (8).
5. the pen type direct current Linear actuator of band sensitive switch according to claim 1; It is characterized in that: have first groove (18) on the described bearing holder (housing, cover) (6); Have second groove (15) on the described direct current machine (5), the lead of sensitive switch under the described connection (14) passes first groove (18) and is connected with circuit control board (2) with second groove (15) back.
6. the pen type direct current Linear actuator of band sensitive switch according to claim 4; It is characterized in that: have endless groove (21) on the described upper end cover (11); Described bearing holder (housing, cover) has three-flute (6-1) on (6); Have on the described direct current machine (5) and concentric the 4th groove of three-flute (6-1); The lead of sensitive switch in the described connection (13) is wrapped on the endless groove (21), and is connected with circuit control board (2) after passing wire-passing tube (10), three-flute (6-1) and the 4th groove.
7. the pen type direct current Linear actuator of band sensitive switch according to claim 1; It is characterized in that: described whirligig comprises connector (22); One end of connector (22) is connected with interior pipe (9), and the other end is equipped with two plate plane bearings (24) through the rotating cup that has been threaded (23) in the rotating cup (23); Be set with the swivel head (25) of band convex shoulder (25-1) in the rotating cup (23), convex shoulder (25-1) is positioned between the two plate plane bearings (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220017778XU CN202495837U (en) | 2012-01-16 | 2012-01-16 | Pen-based direct current linear driver with a micro switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220017778XU CN202495837U (en) | 2012-01-16 | 2012-01-16 | Pen-based direct current linear driver with a micro switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495837U true CN202495837U (en) | 2012-10-17 |
Family
ID=47002049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220017778XU Expired - Lifetime CN202495837U (en) | 2012-01-16 | 2012-01-16 | Pen-based direct current linear driver with a micro switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108903455A (en) * | 2018-08-07 | 2018-11-30 | 深圳市么么科技有限公司 | A kind of adjustable Linear actuator of electric furniture |
-
2012
- 2012-01-16 CN CN201220017778XU patent/CN202495837U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108903455A (en) * | 2018-08-07 | 2018-11-30 | 深圳市么么科技有限公司 | A kind of adjustable Linear actuator of electric furniture |
| WO2020029331A1 (en) * | 2018-08-07 | 2020-02-13 | 深圳市一么么科技有限公司 | Adjustable linear driver for electric furniture |
| CN108903455B (en) * | 2018-08-07 | 2023-09-22 | 深圳市一么么科技有限公司 | Adjustable linear driver for electric furniture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |