CN108756462B

CN108756462B - Power-assisted door handle assembly and refrigeration equipment

Info

Publication number: CN108756462B
Application number: CN201810572508.7A
Authority: CN
Inventors: 李建新; 潘自杰; 盛遵丰; 赵旭日; 杨洪光
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2018-06-06
Filing date: 2018-06-06
Publication date: 2022-05-20
Anticipated expiration: 2038-06-06
Also published as: CN108756462A

Abstract

The invention discloses a power-assisted door handle assembly and refrigeration equipment. The side wall of the support is rotatably provided with a first rotating rod and a second rotating rod, the first rotating rod and the second rotating rod are parallel to each other and have different lengths, the upper ends of the first rotating rod and the second rotating rod are respectively connected with the handle, the lower ends of the first rotating rod and the second rotating rod are connected with the push rod, and the upper ends of the first rotating rod and the second rotating rod are close to the box body of the refrigeration equipment compared with the lower ends of the first rotating rod and the second rotating rod. Two connecting points between the first rotating rod and the bracket, two connecting points between the second rotating rod and the bracket, and two connecting points between the first rotating rod and the handle enclose a parallelogram. When the pulling handle, the upper end of first dwang and second dwang moves towards the direction of keeping away from the box, and the lower extreme of the longer person of length moves towards the direction of being close to the box in the two, drives the push rod and supports to leaning on with the box towards the direction of being close to the box, utilizes the effort of effect on the box, overcomes the interior external pressure difference of storeroom, realizes easily opening a body.

Description

Power-assisted door handle assembly and refrigeration equipment

Technical Field

The invention relates to the technical field of door handles of refrigeration equipment, in particular to a power-assisted door handle assembly and the refrigeration equipment.

Background

The door body and the box body of the refrigeration equipment such as a refrigerator or a vertical refrigerator are generally sealed by a magnetic sealing strip, so that cold air in a storage chamber is prevented from leaking, and the refrigeration effect is ensured. However, when the door body is opened, the door body is opened difficultly due to the combined action of negative pressure and magnetic force because of the pressure difference between the inside and the outside of the storage chamber. The existing handles with the power assisting structures are complex in general structures.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the invention provides a power-assisted door handle assembly and refrigeration equipment, which are simple in structure, easy to realize and convenient for opening a door body.

The technical scheme provided by the invention is that the power-assisted door handle assembly and the refrigeration equipment comprise a bracket, a handle, a push rod and a return spring; the side wall of the support is rotatably connected with a first rotating rod and a second rotating rod, the first rotating rod is parallel to the second rotating rod, the lengths of the first rotating rod and the second rotating rod are different, and the upper ends of the first rotating rod and the second rotating rod are close to a box body of refrigeration equipment compared with the lower ends of the first rotating rod and the second rotating rod; the upper ends of the first rotating rod and the second rotating rod are respectively connected with the handle; the lower end of the longer one of the first rotating rod and the second rotating rod is connected with the push rod; the return spring is used for applying a return force to the power-assisted door handle assembly; the handle, the push rod, the return spring, the first rotating rod and the second rotating rod are configured as follows: when the handle is pulled, the reset spring is stressed to contract, the upper ends of the first rotating rod and the second rotating rod move towards the direction far away from the box body, the lower end of the longer one of the first rotating rod and the second rotating rod moves towards the direction close to the box body, and the push rod moves towards the direction close to the box body to abut against the box body; when the handle is released, the return spring is reset to drive the power-assisted door handle assembly to reset.

Furthermore, the lower end of the longer one of the first rotating rod and the second rotating rod is provided with a strip-shaped through hole A along the length direction, the side wall of the push rod is correspondingly provided with a pin shaft A, and the pin shaft A is inserted in the through hole A and reciprocates along the through hole A.

Furthermore, the upper ends of the first rotating rod and the second rotating rod are respectively provided with a through hole B, and the side surface of the handle is correspondingly provided with a pi-shaped connecting part which is connected with the through hole B in a matching manner.

Furthermore, the push rod comprises a first push rod section, a second push rod section and a third push rod section which is vertically arranged between the first push rod section and the second push rod section, the first push rod section is close to the box body, and a pin shaft A is arranged on the side wall of the second push rod section.

Furthermore, the support is provided with a first limiting part for limiting the first push rod section and a second limiting part for limiting the second push rod section.

Furthermore, the first limiting part is a concave part arranged on the side wall of the bracket, and the first push rod section is clamped in the concave part and reciprocates along the concave part; the second limiting part is a baffle arranged on a bottom plate of the support, and the second push rod section is clamped between the baffle and the side wall of the support and reciprocates along the baffle.

Further, the handle comprises a rotating part and a holding part; the rotating part is of an L-shaped structure and comprises a first connecting plate and a second connecting plate, the first connecting plate is provided with a strip-shaped through hole D along the width direction of the first connecting plate, the bracket is correspondingly provided with a pin shaft D, and the pin shaft D is inserted into the through hole D; the holding part is connected with the first connecting plate, and the pi-shaped connecting part is arranged on the side face of the holding part.

Furthermore, the reset spring is sleeved on the pin shaft D and is positioned between the first connecting plate and the side wall of the support.

Furthermore, through holes C are formed in the first rotating rod and the second rotating rod respectively, pin shafts C are correspondingly arranged on the side walls of the support, and the pin shafts C penetrate through the through holes C.

The invention also discloses refrigeration equipment which comprises a box body and a door body hinged with the box body, wherein the side end face of the door body is provided with the booster door handle assembly.

Compared with the prior art, the invention has the advantages and positive effects that:

the invention provides a power-assisted door handle assembly and refrigeration equipment. Rotate on the lateral wall of support and be provided with first dwang and second dwang, first dwang and second dwang are parallel to each other and the length of the two is different. The upper ends of the first rotating rod and the second rotating rod are respectively connected with the handle, and the lower ends of the longer ones of the first rotating rod and the second rotating rod are connected with the push rod. The upper ends of the first rotating rod and the second rotating rod are close to the box body of the refrigeration equipment compared with the lower ends of the first rotating rod and the second rotating rod. Two connecting points between the first rotating rod and the bracket, two connecting points between the second rotating rod and the bracket, and two connecting points between the first rotating rod and the handle enclose a parallelogram. When the handle is pulled, the reset spring is stressed to contract, the upper ends of the first rotating rod and the second rotating rod move towards the direction far away from the box body, the lower end of the longer one of the first rotating rod and the second rotating rod moves towards the direction close to the box body, the push rod is driven to move towards the direction close to the box body to abut against the box body, and the internal and external pressure difference of the storage chamber is overcome by the acting force acting on the box body, so that the door body is easily opened; when the handle is loosened, the return spring is reset to drive the power-assisted door handle assembly to reset. The invention has simple structure and is easy to realize.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on the drawings without inventive labor.

FIG. 1 is a schematic view of an assembly structure of a door handle assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembled door handle assembly according to an embodiment of the present invention;

FIG. 3 is a view taken in the direction H-H in FIG. 2;

FIG. 4 is a schematic view of an embodiment of the present invention illustrating a door handle assembly with a handle removed;

FIG. 5 is an enlarged view of a portion of FIG. 4 at G;

FIG. 6 is a schematic structural diagram of a push rod according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a handle according to an embodiment of the present invention;

FIG. 8 is a schematic view of another embodiment of a handle according to the present invention;

FIG. 9 is a schematic structural view of a stent according to an embodiment of the present invention;

FIG. 10 is a schematic view of a door handle assembly mounted to a refrigeration unit in accordance with an embodiment of the present invention;

fig. 11 is a partial enlarged view (handle omitted) at I in fig. 10.

Wherein 100-handle, 110-holding part, 111-pi-shaped connecting part, 120-rotating part, 121-first connecting plate, 1211-through hole D, 1212-holding concave part, 122-second connecting plate, 200-push rod, 210-first push rod section, 220-second push rod section, 230-third push rod section, 240-pin shaft A, 250-buffer cushion, 300-bracket, 310-first side wall, 320-second side wall, 330-third side wall, 340-fourth side wall, 341-concave part, 350-bottom plate, 351-baffle, 360-pin shaft C, 370-push rod installation cavity, 380-handle installation cavity, 400-reset spring, 410-pin shaft D, 510-first rotating rod, 520-second rotating rod, 530-through hole A, 540-through hole B, 550-through hole C, 700-box body, 800-door body and 810-embedded box.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First, a brief description will be made of technical terms involved in the detailed description: the following references to the front or rear of each structure are defined in terms of the position of the structure relative to the user in normal use; when the arrangement positions of the plurality of structural members are described in the front or the rear, the arrangement positions of the apparatus composed of the plurality of structural members are defined relative to the position of the user in the normal use state.

The invention discloses a power-assisted door handle assembly which is applied to refrigeration equipment such as a refrigerator and a vertical refrigerator.

Referring to fig. 1 to 5, the door handle assembly includes a bracket 300, and a handle 100, a push rod 200, a return spring 400, a first rotating lever 510 and a second rotating lever 520 disposed on the bracket 300, wherein the return spring 400 is used for applying a return force to the door handle assembly.

The bracket 300 has a strip-shaped groove structure, and referring to the structural diagram of the bracket 300 shown in fig. 9, the bracket includes a first sidewall 310 and a second sidewall 320 oppositely disposed at two ends of the bracket 300, and a third sidewall 330, a fourth sidewall 340 and a bottom plate 350 oppositely disposed along the length direction of the bracket 300. A push rod mounting cavity 370 for mounting the push rod 200 and a handle mounting cavity 380 for mounting the handle 100 are formed in the groove of the bracket 300, the push rod mounting cavity 370 is located at two ends of the bracket 300, and the handle mounting cavity 380 is located in the middle of the bracket 300.

A first rotating rod 510 and a second rotating rod 520 are respectively rotatably connected to the first sidewall 310 and the second sidewall 320, and the first rotating rod 510 is parallel to the second rotating rod 520 and is disposed obliquely with respect to the third sidewall 330 and the fourth sidewall 340. The first rotating lever 510 is different in length from the second rotating lever 520. For convenience of description, the first and second

rotating levers

510 and 520 have upper ends at ends adjacent to the handle 100 and lower ends at ends adjacent to the base plate 350. The upper ends of the first rotating lever 510 and the second rotating lever 520 are closer to the cabinet 700 of the refrigeration appliance than the lower ends thereof, that is, when the door handle assembly is in the unopened state, the upper ends of the first rotating lever 510 and the second rotating lever 520 are respectively disposed to be inclined toward the cabinet 700. The upper ends of the first and second

rotating levers

510 and 520 are respectively fixedly connected to the handle 100, and the lower end of the longer one of the first and second

rotating levers

510 and 520 is connected to the push rod 200. The first rotating rod 510, the second rotating rod 520 and the handle 100 are connected with two connecting points and the support 300 are connected with one another in sequence to form a parallelogram, force transmission is realized by displacement of the parallelogram relative to the support 300 under the action of the handle 100, and the acting force of the handle 100 is converted into the acting force of the push rod 200 abutting against the box body 700.

The handle 100, the push rod 200, the return spring 400, the first rotating lever 510, and the second rotating lever 520 are configured such that: when the handle 100 is pulled, the return spring 400 is forced to contract, and under the driving of the handle 100, the upper ends of the first rotating rod 510 and the second rotating rod 520 move in the direction away from the box body 700, and the lower end of the longer one of the first rotating rod 510 and the second rotating rod 520 moves in the direction close to the box body 700, so as to drive the push rod 200 to move in the direction close to the box body 700 to abut against the box body 700; the handle 100 is continuously pulled, the acting force of the push rod 200 on the box body 700 is continuously increased, the difference between the internal pressure and the external pressure of the storage chamber is overcome, and the door body 800 is easily opened; when the handle 100 is released, the return spring 400 is reset, which drives the door handle assembly to reset.

It should be noted that, no matter the length of the first rotating rod 510 is set to be greater than the length of the second rotating rod 520, or the length of the first rotating rod 510 is set to be less than the length of the second rotating rod 520, as long as the lengths of the first rotating rod 510 and the second rotating rod are different, the acting force of the handle 100 can be converted into the acting force of the push rod 200 abutting against the box body 800. In this embodiment, taking the case that the length of the first rotating lever 510 is greater than that of the second rotating lever 520 as an example, the first rotating lever 510 is disposed closer to the case 700 than the second rotating lever 520.

The first and

second sidewalls

310 and 320 are respectively provided with a pin C360, see fig. 9. The middle portion of the first rotating lever 510 and the lower end of the second rotating lever 520 are respectively provided with a through hole C550, see fig. 3. The pin C360 is inserted into the through hole C550, so that the first rotating rod 510 and the bracket 300, and the second rotating rod 520 and the bracket 300 are rotatably connected.

The lower end of the first rotating rod 510 is provided with a long through hole a 530 along the length direction thereof, referring to fig. 3, the side wall of the push rod 200 is correspondingly provided with a pin a 240, and the pin a 240 is inserted into the through hole a 530. When the handle 100 is pulled, the handle 100 drives the upper ends of the first rotating rod 510 and the second rotating rod 520 to move away from the box body 700, and drives the lower end of the first rotating rod 510 to move towards the direction close to the box body 700. The pin a 240 slides in the through hole a 530, thereby moving the push rod 200 toward the direction close to the case 700.

Referring to the schematic structural diagram of the push rod 200 shown in fig. 6, the push rod 200 of this embodiment includes a first push rod segment 210, a second push rod segment 220, and a third push rod segment 230 vertically disposed between the first push rod segment 210 and the second push rod segment 220, the first push rod segment 210 is close to the box body 700, and the pin a 240 is disposed on a sidewall of the second push rod segment 220. After the push rod 200 is installed in place, the second push rod segment 220 is located in the push rod installation cavity 370, and the third push rod segment 230 can be adapted to the height difference between the fourth side wall 340 and the push rod installation cavity 370. In order to realize that the push rod 200 is more stable and smooth in the reciprocating process, a first limiting portion for limiting the first push rod section 210 and a second limiting portion for limiting the second push rod section 220 are arranged on the bracket 300. This embodiment is from the angle of being convenient for processing and installation, and the setting of first spacing portion and the spacing portion of second is respectively: the first position-limiting portion is a concave portion 341 disposed on the upper end surface of the fourth sidewall 340, and the first push rod segment 210 is clamped in the concave portion 341 and reciprocates along the concave portion 341. The second limiting portion is a baffle 351 disposed on the bottom plate 350, and a limiting space for limiting the second push rod segment 220 is formed between the baffle 351 and the adjacent first side wall 310 and second side wall 320. The second push rod segment 220 is clamped in the limit space and reciprocates along the length direction of the baffle 351.

It should be noted that, in other embodiments, the push rod 200 may be a flat plate structure, and the pin a 240 is disposed on a sidewall of the flat plate structure. When a flat plate structure is adopted, the push rod installation cavity 370 needs to be arranged flush with the upper end surface of the fourth side wall 340 to ensure that the push rod 200 can reciprocate along the upper end surface of the fourth side wall 340. The limiting structure can also take the form of a recess and a baffle, which are not described in detail herein.

Referring to fig. 7, the structure of the handle 100 viewed from the rear side, and fig. 8, the structure of the handle 100 viewed from the front side, the handle 100 includes a rotating portion 120 and a grip portion 110. The rotating part 120 has an L-shaped structure and includes a first connecting plate 121 and a second connecting plate 122. Both ends of the first connection plate 121 are respectively provided with strip-shaped through holes D1211 along a width direction thereof. The two ends of the handle mounting cavity 380 are respectively provided with a pin shaft D410, and the pin shaft D410 is inserted into the through hole D1211. The handle installation cavity 380 can be shielded by the second connecting plate 122, and the attractiveness of the product is improved. The middle portion of the first connecting plate 121 is provided with a holding recess 1212, so that a user can conveniently insert a hand into the holding recess 1212 to pull the holding portion 110. The grip 110 is connected to the first connection plate 121. When the grip 110 is pulled, the through hole D1211 slides obliquely upward along the pin D410, and the handle 100 moves away from the bracket 300. The two ends of the holding portion 110 are respectively provided with a pi-shaped connecting portion 111 which is matched with the through hole B540, so that the holding portion 110 is tightly connected with the first rotating rod 510 and the second rotating rod 520. The two ends of the holding part 110 can shield the push rod installation cavity 370, so that the attractiveness of the product is improved.

The return spring 400 of the present embodiment is used to apply a return force to the handle 100. The method specifically comprises the following steps: the return spring housing 400 is disposed on the pin D410 and between the first connecting plate 121 and the third sidewall 330. When the grip 110 is pulled, the first connection plate 121 simultaneously presses the return spring 400 to be forced to contract as the through hole D1211 slides obliquely upward along the pin D410; after the holding part 110 is released, the return spring 400 is reset, which drives the first connecting plate 121 to reset, thereby driving the reset of the whole power-assisted door handle assembly.

To avoid wear of the casing 700 by the pusher 200 during its reciprocal abutment with the casing 700, a cushion (not shown) is provided at the free end of the first pusher segment 210.

The invention also discloses a refrigeration device, which comprises a refrigerator, a vertical refrigerator and the like, and comprises a box body 700 and a door body 800 hinged with the box body 700. Referring to fig. 10 and 11, a pre-embedded box 810 is disposed on a side end surface of the door body 800, and the pre-embedded box 810 and the door body 800 are integrally foamed and molded for mounting the booster door handle assembly disclosed in this embodiment. In actual installation, the handle 100, the push rod 200, the first rotating rod 510, the second rotating rod 520 and other components are installed on the bracket 300, and then the bracket 300 is integrally installed in the embedded box 810. After the installation is finished, only the handle for the user to operate is exposed and does not protrude out of the door body 800, so that an embedded handle is formed, the door body 800 can be conveniently opened, and meanwhile the problems of unattractive appearance, easiness in abrasion and the like caused by the exposed handle can be avoided.

When the handle 100 is pulled, the return spring 400 is forced to contract, and under the driving of the handle 100, the upper ends of the first rotating rod 510 and the second rotating rod 520 move in the direction away from the box body 700, and the lower end of the longer one of the first rotating rod 510 and the second rotating rod 520 moves in the direction close to the box body 700, so as to drive the push rod 200 to move in the direction close to the box body 700 to abut against the box body 700; the handle 100 is continuously pulled, the acting force of the push rod 200 on the box body 700 is continuously increased, the difference between the internal pressure and the external pressure of the storage chamber is overcome, and the door body 800 is easily opened; when the handle 100 is released, the return spring 400 is reset, which drives the door handle assembly to reset.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The power-assisted door handle assembly comprises a bracket, and is characterized by also comprising a handle, a push rod and a return spring; the side wall of the support is rotatably connected with a first rotating rod and a second rotating rod, the first rotating rod is parallel to the second rotating rod, the lengths of the first rotating rod and the second rotating rod are different, and the upper ends of the first rotating rod and the second rotating rod are close to a box body of refrigeration equipment compared with the lower ends of the first rotating rod and the second rotating rod; the upper ends of the first rotating rod and the second rotating rod are respectively connected with the handle; the lower end of the longer one of the first rotating rod and the second rotating rod is connected with the push rod; the return spring is used for applying a return force to the power-assisted door handle assembly;

the handle comprises a rotating part and a holding part, the rotating part comprises a first connecting plate and a second connecting plate, the first connecting plate is provided with a strip-shaped through hole D along the width direction, the support is correspondingly provided with a pin shaft D, and the pin shaft D is inserted into the through hole D;

the reset spring is sleeved on the pin shaft D and positioned between the first connecting plate and the side wall of the bracket;

the second connecting plate shields an installation cavity for installing the handle, and two ends of the holding part simultaneously shield the installation cavity for installing the push rod;

the handle, the push rod, the return spring, the first rotating rod and the second rotating rod are configured as follows: when the handle is pulled, the reset spring is stressed to contract, the upper ends of the first rotating rod and the second rotating rod move towards the direction far away from the box body, the lower end of the longer one of the first rotating rod and the second rotating rod moves towards the direction close to the box body, and the push rod moves towards the direction close to the box body to abut against the box body; when the handle is released, the return spring is reset to drive the power-assisted door handle assembly to reset.

2. The door handle assembly according to claim 1, wherein the lower end of the longer one of the first and second rotating levers is provided with an elongated through hole a along the length direction thereof, and the push rod is correspondingly provided with a pin a on a side wall thereof, the pin a being inserted into the through hole a and reciprocating along the through hole a.

3. The door handle assembly according to claim 2, wherein the first and second rotating levers are respectively provided at upper ends thereof with through holes B, and the handle is correspondingly provided at side surfaces thereof with pi-shaped coupling portions to be coupled with the through holes B.

4. The door handle assembly of claim 2 wherein the push rod includes a first push rod segment adjacent the housing, a second push rod segment having a pin A disposed on a sidewall thereof, and a third push rod segment disposed vertically between the first push rod segment and the second push rod segment.

5. The door handle assembly of claim 4, wherein the bracket is provided with a first stop portion for stopping the first push rod segment and a second stop portion for stopping the second push rod segment.

6. The door handle assembly according to claim 5, wherein the first stopper portion is a recess provided on a side wall of the bracket, and the first push rod segment is caught in the recess and reciprocates along the recess; the second limiting part is a baffle arranged on a bottom plate of the support, and the second push rod section is clamped between the baffle and the side wall of the support and reciprocates along the baffle.

7. The assist door handle assembly of claim 3 wherein the grip portion is connected to the first connector plate, the pi-shaped connector being disposed laterally of the grip portion.

8. A door handle assembly according to any one of claims 1 to 7 wherein the first and second rotatable levers are each provided with a through hole C and the side walls of the bracket are correspondingly provided with a pin C which is inserted into the through holes C.

9. A refrigeration device comprising a cabinet and a door body hinged to the cabinet, wherein a side end face of the door body is provided with the door handle assembly as claimed in any one of claims 1 to 8.