CN209012364U - A kind of adjustable telescopic rod of stroke - Google Patents
A kind of adjustable telescopic rod of stroke Download PDFInfo
- Publication number
- CN209012364U CN209012364U CN201821835495.XU CN201821835495U CN209012364U CN 209012364 U CN209012364 U CN 209012364U CN 201821835495 U CN201821835495 U CN 201821835495U CN 209012364 U CN209012364 U CN 209012364U
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- wall
- telescopic rod
- sliding groove
- external extension
- extension bar
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Abstract
The utility model discloses a kind of adjustable telescopic rods of stroke, including transmission portion, flexible position, the flexible position grafting is arranged on transmission portion lower end edge, lower section is to reciprocating motion, the flexible position is equipped with first Hall sensor an of fixed setting and the second Hall sensor of an activity setting, first Hall sensor and the second Hall sensor are electrically connected with motor, the purpose of the utility model is to provide a kind of adjustable telescopic rods of stroke, the trip adjustable telescopic rod can not only make telescopic rod stop scaling operation automatically when reaching current maximal dilation amount, and the size of telescopic rod stroke can be adjusted.
Description
Technical field
The utility model relates to telescopic rod technical fields, and in particular to a kind of adjustable telescopic rod of stroke.
Background technique
Telescopic rod is the scalable hollow cylinder body rod made of sheet metal strip or plastic sheet roll.
Telescopic rod can carry out scaling operation to it by motor, we can be flexible to telescopic rod by controlling the start and stop of motor
Length controlled, this operation measure is more troublesome, and is needed us to stare at always, therefore is needed one kind that can stretch to telescopic rod
The device that the start and stop of contracting carry out automatically controlling, if telescopic rod is used on hospital bed, when different people's uses is with bed,
The time (i.e. stroke) that may stop to telescopic rod have different needs, thus need a kind of collection automatic control telescopic rod start and stop,
Adjust the device that telescopic rod stroke is integrated.
Utility model content
The purpose of the utility model is to provide a kind of adjustable telescopic rod of stroke, the adjustable telescopic rod of the trip reaches
Telescopic rod can not only be made to stop scaling operation when current maximal dilation amount automatically, and the size of telescopic rod stroke can be carried out
It adjusts.
To achieve the goals above, the technical solution adopted in the utility model is:
A kind of adjustable telescopic rod of stroke, including transmission portion, flexible position, the flexible position grafting setting are passing
Dynamic position lower end edge upper and lower direction moves back and forth, and the transmission portion includes protective shell, motor, worm gear, worm screw, bearing, described
Cavity is equipped in protective shell, wall is firmly connected with it in the cavity for the motor setting, and the motor is connect with power circuit, institute
Motor is stated equipped with rotation axis, the worm gear grafting setting is rotatably assorted with it on the rotating shaft, and the protective shell lower end is equipped with
The inserting groove being interconnected with cavity, the bearing are fixed at the upper end of cavity inner wall, and the axle center of the bearing is along upper and lower
Direction setting, the upper end of the worm screw pass through inserting groove and are fixedly connected with the inner wall of bearing, the gear teeth of the worm screw outer wall and snail
The gear teeth of wheel outer wall are intermeshed to form transmission cooperation, and the flexible position grafting is arranged in inserting groove to be yearned for along upper and lower
Multiple movement.
The flexible position includes external extension bar, interior telescopic rod, and the interior telescopic rod socket setting is described in worm screw lower end
The inner wall and the grinding tooth on worm screw outer wall of interior telescopic rod mutually screw cooperation, and the external extension rod set, which connects, to be arranged under interior telescopic rod
The upper end grafting setting at end, the external extension bar is engaged by clamping in inserting groove with it, and the outer wall of the external extension bar is equipped with
The limiting plate being arranged along its length, the limiting plate are fixedly connected with external extension bar, the length of the limiting plate
Equal to the length of external extension bar, the limiting plate and the upper end grafting of external extension bar are described into being engaged by clamping in inserting groove with it
Limiting plate is equipped with the first sliding groove, the length of first sliding groove and the length of limiting plate towards the side of external extension bar
Identical, the outer wall of the first sliding groove perforation external extension bar and the inside of external extension bar are interconnected, first sliding groove
It is interior equipped with the positive stop strip moved back and forth along its length, the positive stop strip is fixedly connected with the outer wall of interior telescopic rod.
The positive stop strip upper end is equipped with a magnet block towards the side of limiting plate, and the magnet block is embedded in positive stop strip
On, the side of upper end towards the positive stop strip of first sliding groove is embedded with first Hall sensor, the limiting plate
Outer wall backwards to positive stop strip side is equipped with the second sliding groove, and second sliding groove and the first sliding groove are interconnected, described
Sliding groove is equipped with the sliding shoe being slidably matched with it, is equipped with second be fixedly connected with sliding shoe suddenly in first sliding groove
That sensor, second Hall sensor and the first Hall sensor interval are arranged, and first Hall sensor, second are suddenly
You are electrically connected sensor with motor.
The utility model is further arranged to, the limiting plate along its length on two sides be respectively provided with one with
Its second limited block being fixedly connected, the inserting groove inner wall set there are two with the second limited block be engaged by clamping second limit
Slot, the protective shell are made of plastics, and the end chamfer towards cavity of second limited block is arranged.
The utility model has the beneficial effects that
(1) design at the utility model flexible position and transmission portion enables motor to control telescopic rod and carries out flexible behaviour
Make.
(2) design of the utility model bearing and worm screw makes worm gear band under the premise of the position of worm screw does not change
Dynamic worm screw rotation.
(3) design of the utility model limiting plate and positive stop strip, can effectively make worm screw control in telescopic rod along it is upper,
Lower section avoids interior telescopic rod that rotation occurs to reciprocating motion.
(4) design of the utility model magnet block and the first Hall sensor, enabling interior telescopic rod, back the time receiving is automatic
Stop, motor is also operating after the completion of avoiding interior telescopic rod from recycling.
(5) design of the second movable Hall sensor of the utility model, make interior telescopic rod toward it is overhanging when, reach current
When the maximal dilation amount of adjustment, operating can be left the motor off, avoids the excessively flexible rear motor of telescopic rod from also operating, and can be right
The size of stroke is adjusted.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 be the utility model stretch position, limiting plate, positive stop strip cross-sectional view；
Fig. 3 is the partial sectional view of the utility model protective shell；
Fig. 4 is the cross-sectional view of the utility model protective shell, external extension bar, positive stop strip.
Wherein: 1- protective shell；2- cavity；3- bearing；4- worm screw；5- worm gear；6- rotation axis；6a- motor；7- inserting groove；
8- external extension bar；Telescopic rod in 9-；10- positive stop strip；The first sliding groove of 11-；12- limiting plate；The second sliding groove of 13-；14- magnetic
Iron block；The first Hall sensor of 15-；16- sliding shoe；The second Hall sensor of 17-；The second limited block of 18-；20- second is limited
Slot.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
The utility model is illustrated below with reference to Fig. 1 to Fig. 4.
A kind of adjustable telescopic rod of stroke, including transmission portion, flexible position, the flexible position grafting setting are passing
Dynamic position lower end edge upper and lower direction moves back and forth, and the transmission portion includes protective shell 1, motor 6a, worm gear 5, worm screw 4, bearing
3, the protective shell 1 is interior to be equipped with cavity 2, and the motor 6a setting is firmly connected with it in 2 inner wall of cavity, the motor 6a and electricity
Source circuit connection, the motor 6a are equipped with rotation axis 6, and 5 grafting of the worm gear setting is rotatably assorted in rotation axis 6 with it,
1 lower end of protective shell is equipped with the inserting groove 7 being interconnected with cavity 2, and the bearing 3 is fixed at the upper of 2 inner wall of cavity
The axle center at end, the bearing 3 is arranged along upper and lower direction, and the upper end of the worm screw 4 passes through inserting groove 7 and the inner wall of bearing 3 is fixed
Connection, bearing 3 include inner ring and outer ring, and 3 outer ring of bearing is fixedly connected with 2 inner wall of cavity at this time, and the inner wall of inner ring and worm screw 4 are solid
Fixed connection, the gear teeth of 4 outer wall of worm screw and the gear teeth of 5 outer wall of worm gear are intermeshed to form transmission cooperation, the flexible position
Grafting is arranged in inserting groove 7 to be moved back and forth along upper and lower direction.
The flexible position includes external extension bar 8, interior telescopic rod 9, and the interior socket of telescopic rod 9 is arranged in 4 lower end of worm screw,
The inner wall and the grinding tooth on 4 outer wall of worm screw of the interior telescopic rod 9 mutually screw cooperation, including the socket of external extension bar 8 setting
The upper end grafting setting of 9 lower end of telescopic rod, the external extension bar 8 is engaged by clamping in inserting groove 7 with it, the external extension bar 8
Outer wall be equipped with the limiting plate 12 that is arranged along its length, the limiting plate 12 is fixedly connected with external extension bar 8, institute
The length for stating limiting plate 12 is equal to the length of external extension bar 8, the limiting plate 12 and the 8 upper end grafting of external extension bar into grafting
Is engaged by clamping in slot 7 with it, the limiting plate 12 towards the side of external extension bar 8 equipped with the first sliding groove 11, described first
The length of sliding groove 11 is identical as the length of limiting plate 12, and first sliding groove 11 penetrates through the outer wall of external extension bar 8 and outer
The inside of telescopic rod 8 is interconnected, and is equipped with the positive stop strip 10 moved back and forth along its length, institute in first sliding groove 11
Positive stop strip 10 is stated to be fixedly connected with the outer wall of interior telescopic rod 9.
10 upper end of positive stop strip is equipped with a magnet block 14 towards the side of limiting plate 12, and the magnet block 14 is embedded
On positive stop strip 10, the side of upper end towards the positive stop strip 10 of first sliding groove 11 is embedded with first Hall sensor
15, outer wall of the limiting plate 12 backwards to 10 side of positive stop strip is equipped with the second sliding groove 13, second sliding groove 13 with
First sliding groove 11 is interconnected, and the sliding groove is equipped with the sliding shoe 16 being slidably matched with it, first sliding groove 11
It is interior equipped with the second Hall sensor 17 being fixedly connected with sliding shoe 16, second Hall sensor 17 and the first hall sensing
The setting of the interval of device 15, first Hall sensor 15, the second Hall sensor 17 are electrically connected with motor 6a.
The limiting plate 12 along its length on two sides be respectively provided with second limited block being firmly connected with it
18,7 inner wall of inserting groove set there are two with the second limited block 18 be engaged by clamping the second limiting slot 20, the protective shell 1 by
Plastics are made, and the end chamfer towards cavity 2 of second limited block 18 is arranged.
Illustrate: carrying chip in the motor 6a, it is out of service that chip issues signal control motor 6a；In use, starting
Motor 6a rotates rotation axis 6, and worm gear 5 is driven to rotate, and worm gear 5 drives 4 rotation of worm screw in a manner of " 5 worm screw 4 of worm gear ", by
Cooperation is screwed in interior telescopic rod 9 and worm screw 4, and interior telescopic rod 9 passes through the first sliding groove on positive stop strip 10 and limiting plate 12
11 clampings, move down interior telescopic rod 9 along 5 axis direction of worm gear, avoid interior telescopic rod 9 that rotation occurs, when on positive stop strip 10
Magnet block 14 when passing through the second Hall sensor 17, due to the raw electricity of magnetic, the second Hall sensor 17 delivers a signal to motor 6a
On chip, chip give motor 6a issue instruction, keep motor 6a out of service；Sliding sliding shoe 16 drives sliding shoe 16 at this time
Second Hall sensor 17 is mobile, can control the size of the stroke of interior telescopic rod 9.
The first Hall sensor 15 and the second Hall sensor 17 mentioned in the utility model are a kind of magnetic field sensings
Device, when magnet block 14 passes through the first Hall sensor 15 or the second Hall sensor 17, the first Hall sensor 15 or the second
Hall sensor 17 generates low-voltage, and low-voltage contribute signal is input in the chip in motor 6a by conducting wire, chip hair
Signal keeps motor 6a out of service out.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications, above-mentioned vacation can also be made
If these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (2)
1. a kind of adjustable telescopic rod of stroke, including transmission portion, flexible position, the flexible position grafting setting is being driven
Position lower end edge upper and lower direction move back and forth, it is characterised in that: the transmission portion include protective shell, motor, worm gear, worm screw,
Bearing, the protective shell is interior to be equipped with cavity, and wall is firmly connected with it in the cavity for the motor setting, the motor and power supply electricity
Road connection, the motor are equipped with rotation axis, and the worm gear grafting setting is rotatably assorted with it on the rotating shaft, the protective shell
Lower end is equipped with the inserting groove being interconnected with cavity, and the bearing is fixed at the upper end of cavity inner wall, the axis of the bearing
The heart is arranged along upper and lower direction, and the upper end of the worm screw passes through inserting groove and is fixedly connected with the inner wall of bearing, the worm screw outer wall
The gear teeth of the gear teeth and worm gear outer wall are intermeshed to form transmission cooperation, the flexible position grafting be arranged in inserting groove along it is upper,
Lower section is to reciprocating motion；
The flexible position includes external extension bar, interior telescopic rod, the interior telescopic rod socket setting in worm screw lower end, it is described in stretch
The inner wall and the grinding tooth on worm screw outer wall of contracting bar mutually screw cooperation, and the external extension rod set, which connects, to be arranged in interior telescopic rod lower end,
The upper end grafting setting of the external extension bar is engaged by clamping in inserting groove with it, and the outer wall of the external extension bar is equipped with along it
The limiting plate of length direction setting, the limiting plate are fixedly connected with external extension bar, and the length of the limiting plate is equal to
The length of external extension bar, the limiting plate and the upper end grafting of external extension bar with it into being engaged by clamping in inserting groove, the limit
Pedestal is equipped with the first sliding groove, the length phase of the length and limiting plate of first sliding groove towards the side of external extension bar
Together, the outer wall of the first sliding groove perforation external extension bar and the inside of external extension bar are interconnected, in first sliding groove
Equipped with the positive stop strip moved back and forth along its length, the positive stop strip is fixedly connected with the outer wall of interior telescopic rod；
The positive stop strip upper end is equipped with a magnet block towards the side of limiting plate, and the magnet block is embedded on positive stop strip, institute
The side for stating upper end towards the positive stop strip of the first sliding groove is embedded with first Hall sensor, and the limiting plate is backwards to limit
The outer wall of position side is equipped with the second sliding groove, and second sliding groove and the first sliding groove are interconnected, the sliding groove
It is equipped with the sliding shoe being slidably matched with it, is equipped with the second hall sensing being fixedly connected with sliding shoe in first sliding groove
Device, second Hall sensor and the first Hall sensor interval are arranged, first Hall sensor, the second hall sensing
Device is electrically connected with motor.
2. the adjustable telescopic rod of a kind of stroke according to claim 1, it is characterised in that: the limiting plate is along its length
Two sides on degree direction are respectively provided with second limited block being firmly connected with it, and the inserting groove inner wall sets that there are two with second
The second limiting slot that limited block is engaged by clamping, the protective shell are made of plastics, one towards cavity of second limited block
End chamfer setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821835495.XU CN209012364U (en) | 2018-11-08 | 2018-11-08 | A kind of adjustable telescopic rod of stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821835495.XU CN209012364U (en) | 2018-11-08 | 2018-11-08 | A kind of adjustable telescopic rod of stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209012364U true CN209012364U (en) | 2019-06-21 |
Family
ID=66841833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821835495.XU Active CN209012364U (en) | 2018-11-08 | 2018-11-08 | A kind of adjustable telescopic rod of stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209012364U (en) |
-
2018
- 2018-11-08 CN CN201821835495.XU patent/CN209012364U/en active Active
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