CN206888783U - A kind of gear-box - Google Patents

Abstract

The utility model discloses a kind of gear-box, motor including housing He the inner chamber for being arranged on the housing, the end of the motor is provided with worm screw, the worm engaging has worm gear, the first bearing pin is inserted through in the middle part of the worm gear, the side of the worm gear is provided with limiting gear, the limiting gear is engaged with drive gear, the second bearing pin is interspersed with the middle part of the drive gear, the drive gear side is provided with driving pinion, the driving pinion is engaged with push rod, the utility model can amplify revolving force caused by motor by using minimum gear structure, so as to which counterweight object applies powerful power, and because the utility model is provided with limiting gear structure, when due to power failure can not pull out automatically when, thrust piece can be manually pulled out, without damaging part.And the utility model is simple in construction, manufacturing cost is low, easy to maintenance.

Description

A kind of gear-box

Technical field

Gear-box technical field is the utility model is related to, specially a kind of gear-box.

Background technology

Refrigerator is the indispensable household electrical appliance of most of families, has multiple hutch for accommodating various articles, In the hutch provided in refrigerator, major storage meat, fruit etc. need to keep fresh and fresh food, work as quantity of food , it is necessary to which hutch could be taken out by taking out very big power when very big, this is for the elderly or child, it is difficult to easily will storage heavy type The storage container of food pulls out, and is made troubles to people's life.

Gear-box of the minimum gear structure to object applying power can be utilized it is an object of the invention to provide a kind of.

Utility model content

The purpose of this utility model be to provide it is a kind of can utilize gear-box of the minimum gear structure to object applying power, To solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides following technical scheme：A kind of gear-box, including housing and be arranged on The motor of the inner chamber of the housing, the end of the motor are provided with worm screw, and the worm engaging has worm gear, described The first bearing pin is inserted through in the middle part of worm gear, and the both ends of the first bearing pin are fixedly connected with the housing, the side peace of the worm gear Equipped with limiting gear, the limiting gear is engaged with drive gear, and the second bearing pin, and are interspersed with the middle part of the drive gear The both ends of two bearing pins are fixedly connected with the housing, and the drive gear side is provided with driving pinion, the drive pair tooth Wheel is engaged with push rod, and the push rod extends to the outside of the housing.

Preferably, the side of the worm gear offers stopper slot, and the limiting gear is nested in the stopper slot, institute It is jagged jog to state the edge on the inside of stopper slot.

Preferably, the limiting gear includes gear part and the limiting section installed in the gear end surface, the gear Portion and the drive gear are meshed, and the outer rim of the limiting section is peripherally disposed multiple blades, and the blade Predetermined pressing space is formed between part and the limiting section, the end set of the blades has protuberance.

Preferably, the medial surface of the housing is provided with the fixed component coordinated with the rotary shaft of the worm screw.

Compared with prior art, the beneficial effects of the utility model are：A kind of gear-box, the utility model can be by making Amplify revolving force caused by motor with minimum gear structure, so as to which counterweight object applies powerful power, and due to this Utility model is provided with limiting gear structure, when due to power failure can not pull out automatically when, thrust piece can be manually pulled out, and Part will not be damaged, and the utility model is simple in construction, manufacturing cost is low, easy to maintenance.

Brief description of the drawings

Fig. 1 is schematic appearance of the present utility model；

Fig. 2 is internal structure schematic diagram of the present utility model；

Fig. 3 is the structural representation of limiting gear of the present utility model and worm gear.

In figure：1st, housing, 2, motor, 3, worm screw, 4, worm gear, 41, stopper slot, 42, jog, the 5, first bearing pin, 6th, limiting gear, 61, gear part, 62, limiting section, 63, blades, 64, predetermined pressing space, 65, protuberance, 7, sliding tooth Wheel, the 8, second bearing pin, 9, driving pinion, 10, push rod, 11, fixed component.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-Fig. 3 is referred to, the utility model provides a kind of technical scheme：A kind of gear-box, including housing 1 and be arranged on The motor 2 of the inner chamber of housing 1, motor 2 can be rotated forward and reversely rotated, stretch out so as to driving push rod 10 or To retract, the end of motor 2 is welded with worm screw 3, and worm screw 3 is engaged with worm gear 4, and the middle part of worm gear 4 is inserted through the first bearing pin 5, And first bearing pin 5 both ends and housing 1 weld together, the side of worm gear 4 is nested with limiting gear 6, and limiting gear 6 is applying Equal to or more than predetermined value external force when rotate, so as to motor 2 rotate stop when, manually pull push rod 10, limit tooth Wheel 6 is engaged with drive gear 7, and the middle part of drive gear 7 is interspersed with the second bearing pin 8, and the both ends of the second bearing pin 8 and housing 1 weld It is connected together, the side of drive gear 7 is provided with driving pinion 9, and driving pinion 9 is engaged with push rod 10, and push rod 10 is in housing 1 Interior to be stretched, push rod 10 extends to the outside of housing 1.

Specifically, the side of worm gear 4 offers stopper slot 41, and limiting gear 6 is nested in stopper slot 41, stopper slot The edge of 41 inner sides is jagged jog 42.

Specifically, limiting gear 6 includes gear part 61 and is welded on the limiting section 62 of the end face of gear part 61, gear part 61 It is meshed with drive gear 7, the outer rim of limiting section 62 is peripherally disposed multiple blades 63, and blades and limiting section Predetermined pressing space 64 is formed between 62, when applying the external force equal to or more than predetermined value, blades 63 are pressed to pre- by elasticity Surely space 64 is pressed, so that limiting gear 6 rotates in the stopper slot 41 of worm gear 4, limiting gear 6 dallies, so as to promote Push rod 10 simultaneously prevents internal part to be damaged, and when applying power is less than predetermined value external force, protuberance 65 and jog 42 fasten, So as to be driven, the end set of blades 63 has protuberance 65, and protuberance 65 and jog 42 are engaged work.

Specifically, the medial surface of housing 1 is provided with the fixed component 11 coordinated with the rotary shaft of worm screw 3, so that snail The work of bar 3 is more stable, avoids generation from rocking.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of gear-box, including housing（1）Be arranged on the housing（1）Inner chamber motor（2）, its feature exists In：The motor（2）End worm screw is installed（3）, the worm screw（3）It is engaged with worm gear（4）, the worm gear（4）'s Middle part is inserted through the first bearing pin（5）, and the first bearing pin（5）Both ends and the housing（1）It is fixedly connected, the worm gear（4）'s Side is provided with limiting gear（6）, the limiting gear（6）It is engaged with drive gear（7）, the drive gear（7）Middle part It is interspersed with the second bearing pin（8）, and the second bearing pin（8）Both ends and the housing（1）It is fixedly connected, the drive gear（7）Side Face is provided with driving pinion（9）, the driving pinion（9）It is engaged with push rod（10）, the push rod（10）Extend to described Housing（1）Outside.

2. gear-box according to claim 1, it is characterised in that：The worm gear（4）Side offer stopper slot（41）, And the limiting gear（6）It is nested in the stopper slot（41）It is interior, the stopper slot（41）The edge of inner side is jagged recessed Convex portion（42）.

3. gear-box according to claim 1, it is characterised in that：The limiting gear（6）Including gear part（61）And peace Mounted in the gear part（61）The limiting section of end face（62）, the gear part（61）With the drive gear（7）It is meshed, it is described Limiting section（62）Outer rim peripherally disposed have multiple blades（63）, and the blades and the limiting section（62）It Between form predetermined pressing space（64）, the blades（63）End set have protuberance（65）.

4. gear-box according to claim 1, it is characterised in that：The housing（1）Medial surface be provided with and the snail Bar（3）Rotary shaft coordinate fixed component（11）.