CN111321934A

CN111321934A - Power-assisted door handle assembly and refrigeration equipment

Info

Publication number: CN111321934A
Application number: CN201910461133.1A
Authority: CN
Inventors: 李建新; 潘自杰; 丁剑波; 刘瑾; 赵旭日
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Qingdao Haier Co Ltd
Priority date: 2018-12-13
Filing date: 2019-05-30
Publication date: 2020-06-23
Also published as: CN111321933A; CN211081280U; WO2020118879A1; CN211081281U; CN211081282U; CN111321932A

Abstract

The invention discloses a power-assisted door handle assembly and refrigeration equipment, wherein the power-assisted door handle assembly comprises a handle and a fixed box, the power-assisted door handle assembly also comprises a transmission piece and a push rod, the transmission piece is movably matched and connected with the push rod assembly, the handle is arranged on the fixed box in a sliding manner, a synchronous structure is arranged between the handle and the fixed box, the synchronous structure enables the handle and the fixed box to be provided with at least two matching positions at intervals in the longitudinal direction, so that when the handle is operated at any position to enable the handle to slide relative to the fixed box, the handle can synchronously slide in the longitudinal direction, and the push rod is enabled to move outwards in the direction far away from the fixed box through the transmission piece. The invention ensures that the handle slides stably and reliably, the door opening operation is very simple and labor-saving, the handle can not contact and rub with the side wall surface of the door body, and the user experience is better.

Description

Power-assisted door handle assembly and refrigeration equipment

Technical Field

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

Background

At present, an insulation can for refrigeration equipment (such as a refrigerator, a freezer and the like) generally comprises a box body and a door body, wherein a handle is arranged on the door body for opening the door, and negative pressure is easily formed in the box body due to low temperature in the box body, so that the door body is difficult to open. Chinese patent No. 2016112476145 discloses a helping hand handle subassembly, it rotates to drive the connecting rod through the handle, drive the lever rotation by the drive division of connecting rod, the realization promotes the push rod through the lever and removes and realize the helping hand and open the door, however, discover in the in-service use process, owing to need the connecting rod to rotate and drive the lever rotation, the handle need have great stroke, the user is in operation process, the handle need be followed the door body and pulled out and obtained enough big stroke and drive the lever rotation and open the door, user experience nature is relatively poor. And chinese patent No. 2016109216640 also discloses a refrigerator helping hand door handle subassembly, and rotatory handle makes link mechanism action, and push rod among the link mechanism stretches out and realizes the helping hand and opens the door, and is the same, and the user is in the use, and the handle also need be followed the rotatory pull-out in the door body and come the drive lever rotation to open the door with enough big stroke, also leads to user experience nature to reduce.

In view of the above, there is a need for an improved door handle assembly and a refrigeration device having the same to solve the above problems.

Disclosure of Invention

The invention aims to provide a power-assisted door handle assembly and refrigeration equipment, so that the sliding of a handle is stable and reliable, the door opening operation is very simple and labor-saving, the handle cannot be in contact friction with the side wall surface of a door body, and the user experience is better.

To achieve the above object, the present invention provides a door handle assembly including a handle extending in a longitudinal direction and a fixing box defining a receiving cavity in which the handle is at least partially received, wherein:

the power-assisted door handle assembly further comprises a transmission piece movably arranged on the fixed box and movably connected with the handle in a matched mode, and a push rod assembly arranged in a sliding mode relative to the fixed box, wherein the push rod assembly comprises a push rod extending out of the fixed box, the transmission piece is movably connected with the push rod assembly in a matched mode, the handle is arranged on the fixed box in a sliding mode, a synchronous structure is arranged between the handle and the fixed box, the synchronous structure enables the handle and the fixed box to be provided with at least two matching positions in the longitudinal direction at intervals, so that when the handle is operated at any position to enable the handle to slide relative to the fixed box, the handle can synchronously slide in the longitudinal direction, and the push rod can move outwards in the direction far away from the fixed box through the transmission piece.

As a further improvement of an embodiment of the present invention, the synchronizing structure includes a synchronizing member disposed on one of the handle and the fixing box, and at least two mating portions disposed on the other of the handle and the fixing box, wherein the at least two mating portions are disposed at intervals in a longitudinal direction, and both the at least two mating portions are mated with the synchronizing member.

As a further improvement of the embodiment of the present invention, the synchronizing member is formed by bending a metal wire, the synchronizing member has a middle body, a first bending portion located at one end of the middle body, and a second bending portion located at the other end of the middle body, the first bending portion, and the second bending portion are located on the same plane, and the fixing box is provided with a first mating groove mating with the first bending portion and a second mating groove mating with the second bending portion.

As a further improvement of an embodiment of the present invention, the transmission member is rotatably disposed on the fixing box around a rotation axis, the handle includes a holding portion for gripping and positioning portions located at two ends of the holding portion in the longitudinal direction, the transmission member includes a fixing portion movably coupled to the positioning portion, when the handle is operated to slide relative to the fixing box, the positioning portion and the fixing portion relatively move in a direction parallel to the rotation axis, and the fixing portion and the positioning portion relatively rotate, so that the transmission member rotates relative to the fixing box to facilitate sliding of the push rod assembly.

As a further improvement of an embodiment of the present invention, an elastic member is disposed between the handle and the transmission member, the positioning portion is formed in a cylindrical structure having an opening, the elastic member is accommodated in the positioning portion, one end of the elastic member abuts against the positioning portion, and the other end of the elastic member abuts against the fixing portion.

As a further improvement of an embodiment of the present invention, the push rod assembly includes a bracket for fixing the push rod, the push rod is provided with a push portion extending out of the fixing box, the bracket includes a main body portion extending in an extending direction of the rotation axis and an abutting surface located on one side of the main body portion, and the transmission member abuts against the abutting surface of the main body portion.

As a further improvement of an embodiment of the present invention, the ejector rod has a pair of holding arms arranged at intervals in the longitudinal direction, a groove corresponding to the holding arm is provided on the main body portion of the bracket, and the holding arm is accommodated in the groove.

As a further improvement of an embodiment of the present invention, the door handle assembly further includes a reset member for applying a reset force to the push rod, and the reset member is retained between an inner wall of the fixed box and a side surface of the main body portion facing away from the abutment surface.

As a further improvement of an embodiment of the present invention, the fixing box is provided with a guide portion for guiding the handle to slide, the guide portion defines an inclined surface parallel to the longitudinal direction, and the inclined surface forms an obtuse angle with the sliding direction of the push rod.

As a further improvement of an embodiment of the present invention, the handle includes a handle inclined portion that abuts against the inclined surface, a hand-held portion that is gripped, and a connecting portion that connects the handle inclined portion and the hand-held portion, the handle inclined portion and the hand-held portion are both disposed at an angle to the connecting portion, and the handle inclined portion and the hand-held portion are located on opposite sides of the connecting portion.

As a further improvement of an embodiment of the present invention, the handle inclined portion forms an obtuse angle with the connecting portion, the holding portion is perpendicular to the connecting portion, and the holding portion is at least partially located outside the accommodating cavity.

As a further improvement of an embodiment of the present invention, the fixing box further includes a cover plate for preventing the transmission member from being separated from the fixing box, and the cover plate is located at both sides of the handle in the longitudinal direction to cover the transmission member.

In order to achieve one of the above objects, the present invention provides a refrigeration device, including a box body with one side opening and a door body for closing the opening of the box body, wherein: the door body is provided with the power-assisted door handle assembly in any one of the technical schemes, the power-assisted door handle assembly is embedded in the side wall surface of the door body, and a top rod of the power-assisted door handle assembly abuts against the box body.

Compared with the prior art, the invention has the beneficial effects that: according to the technical scheme provided by the invention, the synchronous structure is arranged between the handle and the fixed box, so that the handle can synchronously slide in the longitudinal direction no matter the handle is operated at any position to slide relative to the fixed box, the sliding of the handle is stable and reliable, the door opening operation is very simple and labor-saving, in addition, the power-assisted door handle component is embedded in the door body, the hidden power-assisted door opening effect is realized, the operation of a user is convenient, and the user experience is favorably improved; the user can conveniently open refrigeration plant's the door body through helping hand door handle subassembly like this, and at the in-process that the door body was opened to the handle, the handle can not produce the mar with the lateral wall face contact friction of the door body moreover, has avoided producing on the handheld end of handle and the lateral wall face of the door body.

Drawings

Fig. 1 is a perspective assembly view of a refrigeration appliance according to a first embodiment of the present invention.

Fig. 2 is a perspective assembly view of a door body and a booster door handle assembly of a refrigeration appliance according to a first embodiment of the present invention.

Fig. 3 is a perspective assembly view of fig. 2 viewed from another direction.

Fig. 4 is a perspective view of the door body and the booster door handle assembly of fig. 2 shown separated.

FIG. 5 is a perspective view of the assist lever handle assembly of FIG. 4 with the mounting cartridge removed.

FIG. 6 is a perspective view of the assist door handle assembly of FIG. 4 with the cover removed.

FIG. 7 is a partially exploded perspective view of the assist door handle assembly of FIG. 4.

FIG. 8 is another partially exploded perspective view of the assist door handle assembly of FIG. 4.

FIG. 9 is an exploded perspective view of the assist door handle assembly of FIG. 4.

FIG. 10 is a perspective view of a bracket of the assist door handle assembly of FIG. 4.

FIG. 11 is a front view of the assist door handle assembly of FIG. 4 with the cover plate removed and the door handle assembly not in use.

Fig. 12 is a sectional view taken along line a-a of fig. 10.

Fig. 13 is a sectional view taken along line B-B in fig. 10.

FIG. 14 is a front view of the assist door handle assembly of FIG. 4 with the cover plate removed in use.

Fig. 15 is a sectional view taken along line C-C of fig. 10.

Fig. 16 is a sectional view taken along line D-D in fig. 10.

FIG. 17 is an exploded perspective view of a booster door handle assembly according to a second embodiment of the present invention.

FIG. 18 is another exploded isometric view of the assist handle assembly of FIG. 17

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

In the description of the embodiments of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner" and "outer" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are generally referred to in a normal use state of the refrigeration apparatus, and do not indicate that the indicated position or element must have a specific orientation.

Referring to fig. 1 to 16, a first embodiment of the present invention discloses a door handle assembly 100 and a refrigerator 400 having the same.

Referring to fig. 1 to 4, the refrigeration apparatus 400 includes a cabinet 200 having one side open and a door 300 closing the open side of the cabinet 200. The door 300 has an inner surface facing the opening of the cabinet 200, an outer surface 301 parallel to the inner surface, and a sidewall surface 302 connecting the inner surface and the outer surface 301, and the door handle assembly 100 is embedded in the sidewall surface 302 of the door 300.

The power door handle assembly comprises a handle 2 extending along a longitudinal direction and a fixed box 1 defining a containing cavity 10, wherein the handle 2 is at least partially contained in the containing cavity 10. In addition, helping hand door handle subassembly still includes driving medium 3 and ejector pin subassembly 4, and wherein, driving medium 3 is located fixed box 1 and is joined in marriage with handle 2 activity, and ejector pin subassembly 4 sets up for fixed box 1 can slide, and ejector pin subassembly 4 is including extending the ejector pin 41 of fixed box 1, and ejector pin 41 supports with box 200 and leans on. And the transmission piece 3 is movably connected with the mandril component 4, and the handle 2 is movably arranged on the fixed box 1. In the embodiment, the handle 2 is slidably disposed on the fixing box 1, and when the handle 2 is slidably disposed relative to the fixing box 1, the driving member 3 causes the push rod assembly 4 to slide, so that the push rod 41 moves outward away from the fixing box 1.

In the preferred embodiment, since the handle 2 is slidably disposed on the fixing box 1, as long as the handle 2 is pulled to slide relative to the fixing box 1, the driving member 3 can drive the push rod assembly 4 to slide, so that the push rod 41 moves outward away from the fixing box 1, and the push rod 41 pushes the box body 200 to open the door with assistance. Therefore, the operation is very simple and labor-saving. In addition, the power-assisted door handle assembly is embedded in the door body 300, so that a hidden power-assisted door opening effect is realized, user operation is facilitated, and user experience is improved; therefore, a user can conveniently open the door body 300 of the refrigeration equipment through the power-assisted door handle assembly, and in the process that the door body 300 is opened by the handle 2, the handle 2 cannot be in contact friction with the side wall surface 302 of the door body 300, so that scratches generated on the handheld end of the handle 2 and the side wall surface 302 of the door body 300 are avoided.

In order to provide a space for pulling the handle 2 and to facilitate the operation of the handle 2, when the handle 2 is in a free state where it is not pulled, the end of the handle 2 adjacent to the outer surface of the door body 300 protrudes from the side wall surface 302 of the door body 300. Of course, the end of the handle 2 adjacent to the outer surface of the door body 300 may be disposed not to protrude from the side wall surface 302 of the door body 300. When the handle 2 is designed to slide, the handle 2 does not interfere with the door 300.

The sliding direction of the handle 2 is perpendicular to the longitudinal direction, and the sliding direction of the handle 2 and the sliding direction of the push rod 41 form an obtuse angle. That is, the handle 2 is moved obliquely. In this embodiment, the longitudinal direction is the height direction of the refrigeration apparatus 400, and the sliding direction of the jack 41 is the depth direction of the refrigeration apparatus.

Furthermore, the fixing box 1 is provided with a guiding part for guiding the sliding of the handle 2, the guiding part defines an inclined surface 112 parallel to the longitudinal direction, and the inclined surface 112 forms an obtuse angle with the sliding direction of the push rod 41. To guide the tilting movement of the handle 2.

Specifically, the handle 2 includes a handle inclined portion 23 attached to the inclined surface 112, a holding portion 21 for grasping, and a connecting portion 25 connecting the handle inclined portion 23 and the holding portion 21, the handle inclined portion 23 and the holding portion 21 are both disposed at an angle to the connecting portion 25, and the handle inclined portion 23 and the holding portion 21 are disposed on opposite sides of the connecting portion 25. The hand-held portion 21 is provided closer to the outer surface of the door body 300, and when the handle 2 is pulled, the handle 2 is displaced in a direction gradually closer to the outer surface of the door body 300 and in a direction away from the side wall surface 302.

The handle inclined portion 23 forms an obtuse angle with the connecting portion 25, the holding portion 21 is substantially perpendicular to the connecting portion 25, and the holding portion 21 is at least partially located outside the accommodating cavity 10. Thus, the operation is facilitated, and when the handle 2 is pulled to generate the slip, the handle 2 does not interfere with the door body 300.

The handle 2 further includes positioning portions 22 located at two ends of the handle portion 21 in the longitudinal direction, and the transmission member 3 includes a fixing portion 32 movably coupled to the positioning portions 22 and accommodating the positioning portions 22. Correspondingly, the transmission part 3 and the ejector rod component 4 are both provided with two.

An elastic member 5 is provided between the handle 2 and the transmission member 3, the positioning portion 22 is formed in a cylindrical structure having an opening, the elastic member 5 is accommodated in the positioning portion 22, one end of the elastic member 5 abuts against the positioning portion 22, and the other end of the elastic member 5 abuts against the fixing portion 32. In particular, the elastic member 5 is provided as a compression spring. In addition, the driving member 3 restricts the handle 2 from being detached from the stationary box 1. In the present embodiment, the fixing portion 32 stops the positioning portion 22 to limit the handle 2 from being detached from the fixing box 1.

The open end of the positioning portion 22 is spaced from the inner wall of the fixing portion 32 by a certain distance so that the positioning portion 22 can be moved toward the inside of the fixing portion 32 by the elastic compression of the elastic member 5 when the handle 2 is pulled out. In addition, helping hand door handle subassembly 100 is still including locating connecting piece 6 between elastic component 5 and fixed part 32, specifically, the connecting piece is fixed in the inner wall of fixed part 32, and connecting piece 6 one end and elastic component 5 location are connected, and the other end supports and leans on the fixed part 32 inner wall, and the periphery of connecting piece 5 is located to elastic component 5 cover. The connecting piece 6 is provided with a head part which is abutted against the fixing part 32 and a tail part which is smaller than the head part in size, and the size of the elastic piece 5 is consistent with that of the tail part, so that the elastic piece 5 is sleeved on the tail part and limited by the head part and cannot be separated from the connecting piece 6.

Further, the transmission member 3 is rotatably disposed on the fixing box 1 around the rotation axis, the longitudinal direction and the sliding direction of the push rod 41 are perpendicular to each other, the transmission member 3 has two opposite ends, one end of the transmission member is movably connected with the handle 2, and the other end of the transmission member is connected with the push rod assembly 4. Specifically, the transmission member 3 abuts against the ejector rod assembly 4. Of course, other coupling methods can be used between the transmission member 3 and the ram assembly 4.

When the handle 2 is operated to move relative to the fixed box 1, the positioning portion 22 and the fixing portion 32 generate relative movement in a direction parallel to the rotation axis, and the fixing portion 32 and the positioning portion 22 rotate relative to each other, so that the transmission member 3 rotates relative to the fixed box 1 to cause the push rod assembly 4 to slide, so that the push rod 41 moves outwards in a direction away from the fixed box 1. Therefore, the handle 2 can move out a certain distance to press the box body as long as moving slightly, so that the moving space of the handle is small and the handle cannot interfere with the door body. In the present embodiment, the handle 2 is slidably provided to the stationary box 1. Of course, the handle 2 may be movably disposed on the fixing box 1. It is sufficient that the positioning portion 22 and the fixing portion 32 are both linearly moved and relatively rotated, so that the push rod assembly 4 is linearly moved by the rotation of the transmission member 3. When the handle 2 is operated to slide obliquely relative to the fixing box 1, the positioning portion 22 moves towards the bottom wall of the fixing portion 32 in the extending direction of the rotation axis, and simultaneously the positioning portion 22 and the fixing portion 32 rotate relatively, the elastic member 5 is compressed, and the transmission member 3 rotates relative to the fixing box 1 to push the push rod assembly 4 to move linearly relative to the fixing box 1, so that the push rod 41 moves outwards in the direction protruding out of the fixing box 1, and the box body 200 is pressed, and the assisted door opening is realized.

When the handle 2 is operatively slid, the handle 2 is displaced in both the direction along the rotation axis and the sliding direction along the jack 41. In the process of pulling the handle 2 from the free state to the final state, the grip portion 21 gradually moves away from the sidewall surface 302 and gradually approaches the outer surface of the door body 300, but the grip portion 21 of the handle 2 does not protrude from the outer surface of the door body 300 until the handle 2 is pulled to the final state.

Referring to fig. 10, the push rod assembly 4 further includes a bracket 42 for fixing the push rod 41, the push rod 41 is provided with a push portion 43 extending out of the fixing box 1, the bracket 42 includes a main body portion 421 extending along the extending direction of the rotation axis and an abutting surface 422 located on one side of the main body portion 421, and the transmission member 3 abuts against the abutting surface 422 of the main body portion 421. The lift rod 41 has a pair of clamp arms 44 arranged at intervals in the longitudinal direction and a cross member 45 connecting the pair of clamp arms 44, and the main body of the bracket 42 is provided with a recess 425 corresponding to the clamp arms 44, and the clamp arms 44 are accommodated in the recess 425.

The bracket 42 further includes side plates 423 provided at both ends of the main body 421 in the sliding direction of the jack 41, and a partition plate 424 located between the side plates 423. Two adjacent limiting spaces are formed between the side plates 423 and the partition plate 424 and the main body 421. The plunger 41 is accommodated in one of the space-defining spaces, the holding arm 44 is accommodated in the recess 425, and the cross member 45 abuts against the body 421. The pushing portion 43 is larger than the opening 118 and abuts against the case 200 in the sliding direction of the rod 41.

The door handle assembly further comprises a reset piece 7 for applying a reset force to the push rod 41, wherein the reset piece 7 is limited between the inner wall of the fixed box 1 and the side surface of the main body 421, which faces away from the abutting surface 422, i.e. the reset piece 7 is accommodated in another limit space different from the limit space for accommodating the push rod 41. When the handle 2 is released, the reset piece 7 is used to reset the jack 41. The inner wall of the positioning groove 116 of the fixing box 1 and the main body 421 are provided with protruding columns protruding in opposite directions, in the present invention, the reset piece 7 is in a spring structure, and two ends of the reset piece 7 are sleeved and fixed on the protruding columns to form a stable connection.

The fixing box 1 is provided with a cover plate 12 for preventing the transmission member 3 from separating from the fixing box 1, and the cover plate 12 is located on two sides of the handle 2 along the longitudinal direction to cover the transmission member 3. Referring to fig. 8 to 15, cover plates 12 are provided to cover both ends of the fixing case 1 and coupled to both ends of the handle 2. Accept chamber 10 and extend the setting along lengthwise direction, the uncovered setting of fixed box 1 along refrigeration plant's width direction's one end, handle 2 establishes in the uncovered one side of fixed box 1. The cover plate 12 is correspondingly covered on the transmission member 3 and the push rod assembly 4 to prevent the transmission member 3 from separating from the fixed box 1 when rotating.

A slide groove 113 is provided in the fixing case 1. The sliding groove 113 extends along the width direction of the refrigeration equipment and has a fixed depth, and the bottom wall of the sliding groove 113 is consistent with the inclination direction of the inclined surface 112. Referring to fig. 12 and 15, the distance between the side of the inclined surface 112 close to the outer surface 301 of the door body 300 and the side wall surface 302 of the door body 300 is smaller than the distance between the side of the inclined surface 112 close to the inner surface of the door body 300 and the side wall surface 302 of the door body 300. That is, when the inclined surface 112 extends from the side closer to the outer surface 301 of the door 300 to the side closer to the inner surface of the door 300, the inclined surface 112 extends obliquely toward the side wall surface 302 which is gradually distant from the door 300. The fixing box 1 further includes receiving grooves 114 formed at both ends of the inclined surface 112 in the longitudinal direction, and the receiving grooves 114 are separated from the inclined surface 112 by partition walls 115. The fixing case 1 is further provided with positioning grooves 116 at both ends in the longitudinal direction for accommodating the jack rod assemblies 4. An opening 118 communicated with the positioning groove 116 is formed on one side of the fixed box 1 close to the inner surface of the door body 300, so that the push rod assembly 4 extends out of the fixed box 1 from the opening 118. The fixing box 1 is provided with a rotating shaft 117 inside, and the rotating shaft 117 is located between the receiving groove 114 and the positioning groove 116 in the longitudinal direction. The transmission member 3 is rotatably disposed on the fixing case 1 through a rotating shaft 117.

Referring to fig. 1 to 15, the positioning portion 22 is located in the accommodating cavity 10 and is accommodated in the accommodating groove 114. The handle inclined portion 23 is projected with a projection 24 slidably fitted with the slide groove 113 of the fixed box 1 to restrict the handle 2 from moving obliquely outward in both the direction of the rotation axis and the sliding direction of the jack 41.

In the present invention, the handle inclined portion 23 is fitted to the inclined surface 112 of the fixing case 1 to guide the handle 2 to move outward in an inclined direction when pulled, that is, in both the direction of the rotation axis and the sliding direction of the jack 41. Of course, a preferred embodiment of the present invention is simple in structure and easy to implement. In another embodiment, the fixing case 1 and the handle 2 may be inclined without the inclined surface 112 and the handle inclined portion 2323 attached thereto, and the sliding groove 113 may be inclined, so that when the protrusion 24 on the handle 2 moves obliquely outward along the inclined sliding groove 113, the protrusion can also move obliquely outward along the direction of the rotation axis and the sliding direction of the plunger 41. Of course, it is also possible to provide the sliding groove 113 on the handle 2 and, correspondingly, the projection 24 on the stationary box 1. Also, other sliding fit structures may be employed as long as the effect of the handle 2 moving obliquely outward in both the direction of the rotation axis and the sliding direction of the jack 41 is achieved. Related similar designs may also be included in the technical idea of the present invention.

The transmission member 3 has a rotating portion 31 rotatably connected to the fixed box 1 and an abutting portion 33 abutting against the push rod assembly 4, and the fixed portion 32 and the abutting portion 33 are respectively located at both ends of the rotating portion 31. The rotating part 31 is sleeved on the rotating shaft 117 in a hollow cylindrical structure. In the present invention, the fixing portion 32 is configured to have an open tubular structure, in the direction along the rotation axis, the open end of the fixing portion 32 faces away from the handle 2, the positioning portion 22 is accommodated in the fixing portion 32, the positioning portion 22 can move on the fixing portion 32 along the extension direction of the rotation axis, and when the handle 2 moves, the positioning portion 22 can drive the fixing portion 32 to move in the accommodating groove 114 along the sliding direction of the push rod 41, so as to rotate the transmission member 3, because the transmission member 3 abuts against the push rod assembly 4, one end of the push rod assembly 4 abuts against the abutting portion 33 to be positioned to form an interlocking structure, and finally, the push rod assembly 4 is caused to slide relative to the fixing box 1.

Referring to fig. 11 to 13, the door 300 is closed and installed on the cabinet 200, and the door handle assembly 100 is not in use. The protrusion 24 of the handle 2 is located at one end of the sliding groove 113 close to the box 200, the fixing portion 32 of the transmission member 3 and the positioning portion 22 of the handle 2 are located at one side of the accommodating groove 114 close to the box 200 in the sliding direction of the push rod 41, and in the extending direction of the rotation axis, the positioning portion 22 of the handle 2 corresponds to the accommodating groove 114, the open end of the positioning portion 22 is spaced from the inner wall of the fixing portion 32 by a certain distance, and the abutting portion 33 of the transmission member 3 is located at one side of the positioning groove 116 away from the box 200. The pushing portion 43 abuts against the case 200.

Referring to fig. 14 to 16, the door 300 is separated from the cabinet 200, and the assist door handle assembly 100 is in a use state. That is, when the handle 2 is pulled outward, i.e., the handle 2 is pulled toward the outer surface of the door body 300, the handle inclined portion 2323 of the handle 2 is moved obliquely outward along the inclined surface 112 by the protrusion 24 sliding in the sliding groove 113, so that the handle 2 is moved obliquely outward in both the extending direction of the rotation axis and the sliding direction of the jack 41, and at this time, the positioning portion 22 is moved outward on the fixing portion 32 in the extending direction of the rotation axis, the elastic member 5 is compressively deformed, at the same time, the positioning portion 22 drives the fixing portion 32 to move outwardly along the receiving slot 114, so that the transmission member 3 rotates relative to the fixing box 1, the abutting portion 33 moves inwardly toward the pushing portion 43, and pushes the pushing portion 43 of the push rod assembly 4 to extend outwardly toward the fixing box 1, thereby, the pushing part 43 pushes the box body 200 and generates a reaction force to the door body 300, so that the door body 300 is opened, and labor saving and convenient door opening are realized. After the handle 2 is released, the push rod 41 and the transmission member 3 are restored to the non-working state by the restoring member 7, and the fixing portion 32 and the positioning portion 22 are restored to the non-working state by the elastic member 5, so that the handle 2 is also restored to the non-working state.

As shown in fig. 17 and 18, the present invention provides a second embodiment, which is different from the first embodiment in that a sliding groove is not provided in the fixing box 201, and a protrusion portion that is coupled to the sliding groove is not provided on the handle 203. In addition, in this embodiment, a synchronizing structure is provided between the handle 203 and the stationary box 201 to ensure up-and-down synchronization when the handle 203 is operatively slid. Other structural forms are the same as those of the first embodiment, and only different parts will be described in detail below, and the description of the same parts will not be repeated.

The synchronous structure enables the handle 203 and the fixed box 201 to be provided with at least two matching positions at intervals in the longitudinal direction, so that when the handle 203 is operated to slide relative to the fixed box 201 at any position, the handle 203 can synchronously slide in the longitudinal direction, and the push rod moves outwards in the direction far away from the fixed box 201 through the transmission piece. So set up, no matter the operating handle 203 any position can all realize synchronous the sliding for it is more convenient to operate, and the structure is more reliable.

The synchronizing structure 205 includes a synchronizing member 207 disposed on one of the handle 203 and the fixing box 201, and at least two mating portions disposed on the other of the handle 203 and the fixing box 201, wherein the at least two mating portions are disposed at intervals in the longitudinal direction, and the at least two mating portions are both mated with the synchronizing member 207. In the preferred embodiment, the synchronizing member 207 is fixedly disposed on the handle 203, and correspondingly, at least two mating portions are disposed on the stationary box 201. Of course, the synchronizing member 207 may be provided on the stationary box 201, and correspondingly, at least two mating portions may be provided on the handle 203.

Further, the synchronizing member 207 is formed by bending a metal wire, the synchronizing member 207 has a middle body 209, a first bending portion 211 located at one end of the middle body 209, and a second bending portion 213 located at the other end of the middle body 209, the first bending portion 211, and the second bending portion 213 are located on the same plane, the mating portion includes a first mating groove 215 and a second mating groove 217 disposed on the fixing box 201, wherein the first mating groove 215 is mated with the first bending portion 211, and the second mating groove 217 is mated with the second bending portion 213. Since the synchronizing member 207 is formed by bending a length of wire, synchronization of the handle 203 in the longitudinal direction is further ensured. Specifically, the synchronizing member 207 is a steel wire. In addition, the metal wire is bent to form, so that the structure is simpler and the cost is lower. In this embodiment, the fixing case 201 is further provided with a push rod guide 219, and the push rod 221 is provided on the push rod guide 219.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims

1. A door handle assembly including a handle extending in a longitudinal direction and a retaining box defining a receiving cavity in which the handle is at least partially received, the door handle assembly comprising:

2. The power assist door handle assembly of claim 1, wherein: the synchronous structure comprises a synchronous piece arranged on one of the handle and the fixed box and at least two matching parts arranged on the other of the handle and the fixed box, wherein the at least two matching parts are arranged at intervals in the lengthwise direction, and the at least two matching parts are matched and connected with the synchronous piece.

3. The power assist door handle assembly of claim 2, wherein: the synchronous piece is formed by bending a metal wire, the synchronous piece is provided with a middle body, a first bending part and a second bending part, the first bending part is located at one end of the middle body, the second bending part is located at the other end of the middle body, the first bending part and the second bending part are located on the same plane, and a first matching groove matched with the first bending part and a second matching groove matched with the second bending part are formed in the fixing box.

4. The power assist door handle assembly of claim 1, wherein: the transmission part is rotatably arranged on the fixed box around the rotating axis, the handle comprises a handheld part for gripping and positioning parts arranged at two ends of the handheld part in the longitudinal direction, the transmission part comprises a fixing part movably connected with the positioning parts, when the handle slides relative to the fixed box in an operation mode, the positioning parts and the fixing parts generate relative movement in the direction parallel to the rotating axis, and the fixing parts and the positioning parts rotate relatively, so that the transmission part rotates relative to the fixed box to enable the ejector rod assembly to slide.

5. The power assist door handle assembly of claim 4, wherein: an elastic piece is arranged between the handle and the transmission piece, the positioning part is of an open tubular structure, the elastic piece is contained in the positioning part, one end of the elastic piece is abutted against the positioning part, and the other end of the elastic piece is abutted against the fixing part.

6. The power assist door handle assembly of claim 4, wherein: the push rod assembly comprises a support used for fixing the push rod, a pushing portion extending out of the fixing box is arranged on the push rod, the support comprises a main body portion extending along the extending direction of the rotating axis and an abutting surface located on one side of the main body portion, and the transmission piece is abutted to the abutting surface of the main body portion.

7. The power assist door handle assembly of claim 6, wherein: the ejector rod is provided with a pair of clamping arms which are arranged in the longitudinal direction at intervals, grooves corresponding to the clamping arms are formed in the main body portion of the support, and the clamping arms are contained in the grooves.

8. The power assist door handle assembly of claim 6, wherein: the power-assisted door handle assembly further comprises a reset piece for applying reset force to the ejector rod, and the reset piece is limited between the inner wall of the fixed box and the side surface of the main body part, which faces away from the abutting surface.

9. The power assist door handle assembly of claim 1, wherein: the fixed box is provided with a guide part for guiding the handle to slide, the guide part defines an inclined plane parallel to the longitudinal direction, and the inclined plane and the sliding direction of the ejector rod form an obtuse angle.

10. The power assist door handle assembly of claim 9, wherein: the handle include with the handle rake that the inclined plane was laminated mutually, supply the handheld portion of gripping and connect the connecting portion of handle rake and handheld portion, the handle rake with handheld portion all with connecting portion angulation sets up, just the handle rake with handheld portion is located the both sides that connecting portion are relative.

11. The power assist door handle assembly of claim 10, wherein: the handle inclined part and the connecting part form an obtuse angle, the handheld part is perpendicular to the connecting part, and at least part of the handheld part is located outside the accommodating cavity.

12. The power assist door handle assembly of claim 1, wherein: the fixed box further comprises a cover plate for avoiding the transmission part from being separated from the fixed box, and the cover plate is located on two sides of the handle along the longitudinal direction and is covered with the transmission part.

13. The utility model provides a refrigeration plant, includes the uncovered box that sets up in one side and seals the door body of the uncovered department of box, its characterized in that: the door body is provided with the booster door handle assembly as claimed in any one of claims 1 to 12, the booster door handle assembly is embedded in a side wall surface of the door body, and a top rod of the booster door handle assembly abuts against the box body.