CN208202938U - A kind of acceleration door-opening mechanism and the refrigerator with the mechanism - Google Patents
A kind of acceleration door-opening mechanism and the refrigerator with the mechanism Download PDFInfo
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- CN208202938U CN208202938U CN201820744526.4U CN201820744526U CN208202938U CN 208202938 U CN208202938 U CN 208202938U CN 201820744526 U CN201820744526 U CN 201820744526U CN 208202938 U CN208202938 U CN 208202938U
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- push rod
- door
- spring
- opening mechanism
- pusher head
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Abstract
The utility model discloses a kind of acceleration door-opening mechanism and with the refrigerator of the mechanism, including power section；Running part；Output block, power suitable for receiving transmission parts carries out linear movement and opens door body, the output block includes rack gear and push-rod assembly, the push-rod assembly includes the push rod being fixedly connected on rack gear, axis, spring and pusher head, the push rod has centre bore, one end of the axis is inserted into the centre bore of push rod, the other end of the axis is fixedly connected with pusher head, the spring pocket is on the shaft, and spring is limited between push rod and pusher head, when compressing the spring by the push rod, axis can be continued into centre bore.The utility model adds axis and spring between push rod and pusher head, plays positioning action to spring by axis, makes the deformation of spring always along axial progress, it can also occurring deformation radially when preventing amount of spring compression larger, leads to failure mechanisms.
Description
Technical field
The utility model relates to a kind of acceleration door-opening mechanism and with the refrigerator of the mechanism, belong to refrigerator art.
Background technique
In the mode of the automatic door opening of refrigerator, refrigerator open mechanism or refrigerator roof door mechanism of the rack gear as output block
It is very common.Have in the prior art and use motor as power, after the multi-stage speed-reducing of running part, is further exported with rack gear
Enabling or roof door.But when refrigerator door is heavier such as user is when inside refrigerator door places more food, beverage and other items,
When being opened the door using existing door-opening mechanism, the opening angle and opening speed of refrigerator doors can become smaller.This needs to promote motor
Such issues that performance is to prevent, but will increase the noise of door-opening mechanism in this way, influence user experience.This just needs one kind to exist
In the case that motor performance and mechanism reduction ratio are constant, increase the opening angle of refrigerator doors and the door-opening mechanism of opening speed.
Summary of the invention
The technical problem to be solved by the utility model is to overcoming the deficiencies of the prior art and provide a kind of acceleration door lifter
Structure and refrigerator with the mechanism, to solve the problems, such as that refrigerator door open angle and opening speed are insufficient.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of acceleration door-opening mechanism, including
Power section is adapted to provide for the driving force of door-opening mechanism；
Running part is exported suitable for receiving from the power that power section provides；
Output block, the power suitable for receiving running part carry out linear movement and open door body, and the output block includes
Rack gear and push-rod assembly, the push-rod assembly include the push rod being fixedly connected on rack gear, axis, spring and pusher head, described to push away
Bar has centre bore, and one end of the axis is inserted into the centre bore of push rod, and the other end of the axis is fixedly connected with pusher head,
On the shaft, and spring is limited between push rod and pusher head the spring pocket, is passed through the push rod and is compressed the spring
When, axis can continue into centre bore.
Further, the pusher head has inner cavity, and inner cavity is equipped with fixing seat, the other end of the axis far from the end of push rod
It is pressed in the fixing seat.
Further, the inner cavity of pusher head is protruded into the end of the push rod, and the spring is limited in end and the promotion of push rod
Between the intracavity sidewall of head.
Further, the end of the push rod is provided with push rod boss, the inner wall of the close push rod of the inner cavity of the pusher head
It is equipped with the anticreep grab that anti-throw-out lever boss slips.
Further, the anticreep grab is uniformly arranged four along the inner cavity of pusher head.
Further, the outer wall of the pusher head is equipped with along axial open slot, and the opening direction of open slot is towards push rod.
Further, the open slot is uniformly arranged two along the outer wall of pusher head, and the length of the open slot is entirely to push away
The 1/3 to 1/2 of dynamic head length.
Further, the rack gear is used with the push rod and is threadedly coupled, alternatively, the rack gear and the push rod are integrally set
It sets.
Further, the running part is gear pair, and the most minor details gear of the rack and pinion pair of output block engages, and
Straight reciprocating motion is done under its driving.
Further, the power section includes motor and worm screw, and the output end of motor passes through tooth of the worm screw to running part
Wheel set transmits power.
Further, the acceleration door-opening mechanism further includes the control unit being made of the first microswitch and the second microswitch
Point, the first microswitch and the second microswitch are used to send signal to refrigerator control panel, to control motor positive and inverse；First
Microswitch and the second microswitch are arranged on the shell without flank of rack gear.
The utility model additionally provides a kind of refrigerator, and the top of the refrigerator or bottom are provided with the acceleration and open the door
Mechanism.
After above-mentioned technical proposal, the utility model has the following beneficial effects:
1) the utility model adds axis and spring between push rod and pusher head, plays positioning action to spring by axis,
Make the deformation of spring always along axial progress, it can also shape radially occurs in spring when preventing amount of spring compression larger
Become, if deformation radially occurs in spring, is easy to cause failure mechanisms；
2) door-opening mechanism of the utility model is compared with the door-opening mechanism of existing non-spring structure, under Same Efficieney,
Faster, open angle is bigger for enabling speed；Under same open door effect, than the door-opening mechanism of existing non-spring structure, energy conservation
And low noise；
3) the utility model realizes the opening angle and speed for increasing refrigerator doors using spring, and structure is simple, assembly side
Just, convenient for manufacture, compared to the identical effect of this programme is realized using powerful motor, cost is greatly saved.
Detailed description of the invention
Fig. 1 is the explosive view of the acceleration door-opening mechanism of the utility model；
Fig. 2 is the top view of the acceleration door-opening mechanism of the utility model；
Fig. 3 is the structural schematic diagram of the output block of the utility model；
Fig. 4 is the explosive view of the push-rod assembly of the utility model；
Fig. 5 is the installation diagram of the push-rod assembly of the utility model；
Fig. 6 is that Fig. 2 is A-A cutaway view Amplified image；
Fig. 7 is the portion the B partial enlarged view of Fig. 6；
Fig. 8 is the schematic perspective view of the pusher head of the utility model；
Fig. 9 is the front sectional view of the pusher head of the utility model；
Figure 10 is state diagram when push-rod assembly is in original state；
Figure 11 is that push-rod assembly is in the state diagram for opening working condition；
Figure 12 be thrust needed for refrigerator door, the thrust of push rod without spring arrangement, this door-opening mechanism push-rod assembly
The relation curve of thrust and displacement.
Specific embodiment
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
Unless not defining, the technical term or scientific term used herein is should be in the utility model fields
The ordinary meaning that personage with general technical ability is understood.Used in the utility model patent specification and claims
" first ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Equally, the similar word such as "one" or " one " does not indicate that quantity limits yet, but indicates there is at least one
It is a.
As shown in Figures 1 to 4, a kind of acceleration door-opening mechanism, including
Power section 2 is adapted to provide for the driving force of door-opening mechanism；The present embodiment is using motor as power source, power section
Can be used such as flowering structure, the power section may include motor 21 and worm screw 22, the output end of motor 21 by worm screw 22 to
The gear pair of running part 3 transmits power；
Running part 3 carries out the output of speed change torque-variable suitable for receiving the power provided from power section 2；The present embodiment
Running part 3 by taking the gear pair generally used as an example, the running part 3 be gear pair, the rack gear 41 and tooth of output block
The most minor details gear of wheel set engages, and does straight reciprocating motion under its driving；
Output block 4, the power suitable for receiving running part 3 carry out linear movement and open door body, and the output block 3 wraps
Rack gear 41 and push-rod assembly are included, the push-rod assembly includes the push rod 42 being fixedly connected on rack gear 41, axis 43, spring 44 and pushes away
Dynamic head 45, the push rod 42 have centre bore, and one end of the axis 43 is inserted into the centre bore of push rod 42, the axis 43 it is another
One end is fixedly connected with pusher head 45,44 sets of the spring on the axis 43, and spring 44 be limited in push rod 42 and push
Between first 45, when compressing the spring 44 by the push rod 42, axis 43 can be continued into centre bore.
The utility model adds axis 43 and spring 44 between push rod 42 and pusher head 45, is played by axis 43 to spring 44
Positioning action makes the deformation of spring 44 always along axial progress, it can also occurring when preventing 44 decrement of spring larger radial
On deformation, lead to failure mechanisms.
In the opening procedure of refrigerator doors, because the movement of push-rod assembly is linear motion, and refrigerator doors unlatching is one
Circular motion, during push-rod assembly pushes, refrigerator doors can be detached from push-rod assembly, then be opened the door by its inertia.From
It is seen on energy, compared to the push-rod assembly of no spring arrangement, the push-rod assembly with spring arrangement of the utility model is being pushed open
After refrigerator doors, it can give refrigerator doors more elastic potential energys, can give refrigerator doors bigger inertia in this way, make it have and open faster
Door speed and bigger open angle.
The pusher head 45 of the present embodiment is preferably sleeve class formation, such as pushing rod sleeve, and the right end of push rod 42 is inserted into and is pushed
First 45, it is completely disposed at the spring structure of push-rod assembly in pusher head, influences the spring structure by the external world.As shown in fig. 7,
The pusher head 45 has inner cavity, and pusher head 45 covers outside push rod 42 and spring 44 by its inner cavity, end of the inner cavity far from push rod
Portion is equipped with fixing seat 451, and the other end of the axis 43 is pressed in the fixing seat 451.Promotion is protruded into the end of the push rod 42
First 45 inner cavity, the spring 44 are limited between the end of push rod 42 and the intracavity sidewall of pusher head 45.
Since spring 44 being arranged between push rod 42 and pusher head 45, during spring discharges elastic potential energy, there are gesture
The risk can be excessive and directly release push rod 42 from the inner cavity of pusher head 45.As shown in fig. 7, the end of the push rod 42 is set
It is equipped with push rod boss 421, the inner wall of the close push rod 42 of the inner cavity of the pusher head 45 is slipped equipped with anti-throw-out lever boss 421
Anticreep grab 452.In the present embodiment, the end of inner cavity is arranged in anticreep grab 452, naturally it is also possible to appointing for inner cavity be arranged in
Meaning position, stroke of the logical setting adjustable push rod 42 in position for keeping anticreep grab 452 in pusher head 45.The anticreep grab
452 are preferably provided with four, and the inner cavity along pusher head 45 is uniformly distributed.
Fig. 8 shows the external structure of pusher head, and Fig. 9 shows the internal structure of pusher head.Outside the pusher head 45
Wall is equipped with along axial open slot 453, the opening direction of open slot 453 towards push rod 42 so that pusher head 45 have it is enough
Deflection is conveniently installed on push rod 42.The open slot 453 is preferably provided with two, and the outer wall along pusher head 45 is uniformly distributed,
The length of the open slot 453 is preferably the 1/3 to 1/2 of entire pusher head length, has both guaranteed that pusher head 45 had certain elasticity,
Guarantee that pusher head has satisfactory intensity again.
In the present embodiment, the rack gear 41 and the push rod 42 are using being threadedly coupled, and certainly, the rack gear 41 and described push away
Bar 42 can also be integrated setting.The connection type of rack gear 41 and push rod 42 can carry out reasonably adjusting according to actual needs with
Selection.
The acceleration door-opening mechanism further includes the control section being made of the first microswitch 5 and the second microswitch 6, the
One microswitch 5 and the second microswitch 6 are used to send signal to refrigerator control panel, to control the positive and negative rotation of motor；First
Microswitch 5 and the second microswitch 6 are arranged on the shell without flank of rack gear.Push-rod assembly pushes forward door body open, when
Rack gear touches the first microswitch 5, after refrigerator control panel receives the signal of the first microswitch 5, stops supplying to motor 21
Electricity, motor stalling, push-rod assembly stopping travel forward.When push-rod assembly resets backward, when rack gear touches the second microswitch
6, after refrigerator control panel receives the signal of the second microswitch 6, stop powering to motor 21, motor stalls, and push-rod assembly is multiple
Position is in place.
The acceleration door-opening mechanism further includes the shell structure being made of upper housing 1 and lower case 7, power section 2, transmission
Part 3, the first microswitch 5, the second microswitch 6 are respectively positioned in shell structure, and push-rod assembly can under the drive of rack gear 41
Stretch out shell structure.
The working principle of this acceleration door-opening mechanism is as follows:
Original state: the head end of the push rod 42 of push-rod assembly exposes door-opening mechanism shell, and pusher head 45 and shell are close.Such as
Figure 10 show the original state of door-opening mechanism, and spring is in free state at this time.
Door-opening mechanism carry out door body open working condition: refrigerator control panel receive user open the door signal after, control panel to
The power supply of this door-opening mechanism, accelerates the motor 21 of the power section 2 of door-opening mechanism to rotate forward, and drives running part 3, and running part 3 drives
Dynamic output block 4 opens door body, and output block 4 withstands refrigerator doors, and push rod 42 is to 45 internal motion pressure of pusher head in output block 4
Contracting spring 44, as shown in figure 11, the thrust of the unlatching needed for the elastic force that spring 44 compresses is more than or equal to refrigerator doors, refrigerator doors are beaten
It opens, 44 abrupt release of spring, pushes pusher head 45, pusher head 45 drives push rod 42 that power-assisted is accelerated to open refrigerator doors, by reality
Verifying clear ice chamber door openable to one is greater than 85 ° of angle.Output block 4 is detached from and continues with refrigerator doors during pushing
Straight forward movement, until the rack gear 41 of output block 4 touches the first microswitch 5, refrigerator control panel stops after receiving signal
The power supply of clamshell doors mechanism, motor 21 stop operating；Then this door-opening mechanism enters reset working condition.
Door-opening mechanism resets working condition: refrigerator control panel provides reverse current, door-opening mechanism power part to door-opening mechanism
The motor 21 divided inverts, and power section rotates backward, and drives running part 3, and running part 3 drives 4 opposite direction of output block fortune
Dynamic, when output block 4 returns back to original state position, 4 middle rack 41 of output block touches the second microswitch 6, refrigerator control
Making sheet stops the power supply of clamshell doors mechanism after receiving signal, and motor 21 stops operating, and completes the reset of output block.
The present embodiment also provides a kind of refrigerator, and the acceleration door lifter is provided at the top of the refrigerator or bottom
Structure.
In order to clearly illustrate the effect of the utility model, Figure 12 is the relation curve of thrust and displacement, wherein a
The relation curve being displaced for thrust in refrigerator opening procedure with door body；B is thrust and displacement in the pushrod movement without spring arrangement
Relation curve, c be this door-opening mechanism push-rod assembly thrust and displacement relation curve.
Curve a: when refrigerator doors are not opened (when non-displacement), required thrust is maximum, as refrigerator doors are opened to one
After the angle of very little (after beginning with displacement generation), refrigerator doors open thrust can be smaller and smaller.
Curve b: because mechanism is to determine the transmission mechanism of reduction ratio, thrust output be it is stable, thrust will not be with position
It moves variation and changes.
Curve c: push rod is in just contact refrigerator doors, first compressed spring, spring energy storage, when spring energy storage is more than or equal to refrigerator
When required power of opening the door, refrigerator doors are open, spring release, and thrust suffered by refrigerator doors is that the elastic force of spring is pushed away with push rod at this time
The sum of power.
In the opening procedure of refrigerator, because the movement of push-rod assembly is linear motion, and refrigerator doors unlatching is a circle
Zhou Yundong, during push-rod assembly pushes, refrigerator doors can be detached from push-rod assembly and open the door by its inertia.From energy
It sees, the push-rod assembly of power can be stored after pushing refrigerator doors open with spring structure, compared to the common pusher structure of no spring arrangement,
It can be to an elastic potential energy more than refrigerator doors.Can give refrigerator doors bigger inertia in this way, make it have faster enabling speed and
Bigger open angle.
The door-opening mechanism of the utility model under Same Efficieney, is opened compared with the door-opening mechanism of existing non-spring structure
Faster, open angle is bigger for door speed；Under same open door effect, than the door-opening mechanism of existing non-spring structure, energy conservation and
Low noise.
The utility model realizes the opening angle and speed for increasing refrigerator doors using spring, and structure is simple, easy to assembly,
Convenient for manufacture, compared to the identical effect of this programme is realized using powerful motor, cost is greatly saved.
Particular embodiments described above, to the utility model solve the technical issues of, technical scheme and beneficial effects into
It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to
In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvement done
Deng should be included within the scope of protection of this utility model.
Claims (12)
1. a kind of acceleration door-opening mechanism, it is characterised in that: including
Power section (2), is adapted to provide for the driving force of door-opening mechanism；
Running part (3) is suitable for receiving the power from power section (2) offer and is exported；
Output block (4), the power for being suitable for receiving running part (3) carry out linear movement and open door body, the output block (4)
Including rack gear (41) and push-rod assembly, the push-rod assembly include be fixedly connected on rack gear (41) push rod (42), axis (43),
Spring (44) and pusher head (45), the push rod (42) have centre bore, and one end of the axis (43) is inserted into push rod (42)
In centre bore, the other end of the axis (43) is fixedly connected with pusher head (45), and the spring (44) covers on the axis (43),
And spring (44) is limited between push rod (42) and pusher head (45), compresses the spring (44) by the push rod (42)
When, axis (43) can continue into centre bore.
2. acceleration door-opening mechanism according to claim 1, it is characterised in that: the pusher head (45) has inner cavity, inner cavity
End far from push rod is equipped with fixing seat (451), and the other end of the axis (43) is pressed in the fixing seat (451).
3. acceleration door-opening mechanism according to claim 2, it is characterised in that: pusher head is protruded into the end of the push rod (42)
(45) inner cavity, the spring (44) are limited between the end of push rod (42) and the intracavity sidewall of pusher head (45).
4. acceleration door-opening mechanism according to claim 3, it is characterised in that: the end of the push rod (42) is provided with push rod
The inner wall of boss (421), the close push rod (42) of the inner cavity of the pusher head (45) is slipped equipped with anti-throw-out lever boss (421)
Anticreep grab (452).
5. acceleration door-opening mechanism according to claim 4, it is characterised in that: the anticreep grab (452) is along pusher head
(45) inner cavity is uniformly arranged four.
6. acceleration door-opening mechanism according to claim 3, it is characterised in that: the outer wall of the pusher head (45) is equipped with edge
Axial open slot (453), the opening direction of open slot (453) is towards push rod (42).
7. acceleration door-opening mechanism according to claim 6, it is characterised in that: the open slot (453) is along pusher head (45)
Outer wall be uniformly arranged two, the length of the open slot (453) is the 1/3 to 1/2 of entire pusher head length.
8. acceleration door-opening mechanism according to claim 1, it is characterised in that: the rack gear (41) is adopted with the push rod (42)
It is threadedly coupled, alternatively, the rack gear (41) and the push rod (42) are wholely set.
9. acceleration door-opening mechanism according to claim 1, it is characterised in that: the running part (3) is gear pair, output
The rack gear (41) of component is engaged with the most minor details gear of gear pair, and does straight reciprocating motion under its driving.
10. acceleration door-opening mechanism according to claim 9, it is characterised in that: the power section include motor (21) and
The output end of worm screw (22), motor (21) transmits power to the gear pair of running part (3) by worm screw (22).
11. acceleration door-opening mechanism according to claim 10, it is characterised in that: the acceleration door-opening mechanism further includes by
The control section of one microswitch (5) and the second microswitch (6) composition, the first microswitch (5) and the second microswitch (6)
It is used to send signal to refrigerator control panel, to control motor positive and inverse；First microswitch (5) and the second microswitch (6)
It is arranged on the shell without flank of rack gear.
12. a kind of refrigerator, it is characterised in that: at the top of the refrigerator or bottom setting just like any one of claim 1 to 11
The acceleration door-opening mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820744526.4U CN208202938U (en) | 2018-05-18 | 2018-05-18 | A kind of acceleration door-opening mechanism and the refrigerator with the mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820744526.4U CN208202938U (en) | 2018-05-18 | 2018-05-18 | A kind of acceleration door-opening mechanism and the refrigerator with the mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208202938U true CN208202938U (en) | 2018-12-07 |
Family
ID=64518254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820744526.4U Active CN208202938U (en) | 2018-05-18 | 2018-05-18 | A kind of acceleration door-opening mechanism and the refrigerator with the mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208202938U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005295A (en) * | 2019-05-20 | 2019-07-12 | 华人运通(江苏)技术有限公司 | The assist device of car door and its control method and car door, vehicle with it |
| CN111486659A (en) * | 2020-04-27 | 2020-08-04 | 合肥美菱物联科技有限公司 | Refrigerator door opening control system and method capable of automatically opening door |
| CN111852241A (en) * | 2019-04-28 | 2020-10-30 | 青岛海尔洗碗机有限公司 | Automatic door opening device and household appliance |
-
2018
- 2018-05-18 CN CN201820744526.4U patent/CN208202938U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852241A (en) * | 2019-04-28 | 2020-10-30 | 青岛海尔洗碗机有限公司 | Automatic door opening device and household appliance |
| CN110005295A (en) * | 2019-05-20 | 2019-07-12 | 华人运通(江苏)技术有限公司 | The assist device of car door and its control method and car door, vehicle with it |
| CN111486659A (en) * | 2020-04-27 | 2020-08-04 | 合肥美菱物联科技有限公司 | Refrigerator door opening control system and method capable of automatically opening door |
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