Power-assisted door handle assemblies and refrigeration equipment

Abstract

The present invention discloses a power-assisted door handle assembly and a refrigeration device, wherein the power-assisted door handle assembly includes a handle extending in the longitudinal direction and a fixed box defining a receiving cavity, wherein the handle is at least partially received in the receiving cavity, wherein the power-assisted door handle assembly also includes a transmission member disposed in the fixed box and movably coupled with the handle, and a top rod assembly slidably disposed relative to the fixed box, wherein the top rod assembly includes a top rod extending out of the fixed box, and the transmission member is movably coupled with the top rod assembly, wherein the handle is slidably disposed in the fixed box, and when the handle can be operably slid relative to the fixed box, the transmission member causes the top rod assembly to slide, so that the top rod moves outward in a direction away from the fixed box. The present invention makes the door opening operation very simple and labor-saving, and the handle will not contact and rub against the side wall of the door body, and the user experience is good.

Description

Technical Field

[0001] The invention relates to the field of household appliances, and in particular to a power-assisted door handle assembly and a refrigeration device. Background Art

[0002] At present, the insulated box used for refrigeration equipment (such as refrigerators, freezers, etc.) usually includes a box body and a door body, and a handle is arranged on the door body for opening the door. However, due to the low temperature in the box body, negative pressure is easily formed, which makes it difficult to open the door body. Chinese Patent No. 2016112476145 discloses a power-assisted handle assembly, which drives the connecting rod to rotate by the handle, and the driving part of the connecting rod drives the lever to rotate, so as to realize the power-assisted door opening by pushing the push rod to move by the lever. However, in actual use, it is found that since the connecting rod needs to rotate to drive the lever to rotate, the handle needs to have a large stroke. During the operation, the user needs to pull the handle out of the door body to obtain a large enough stroke to drive the lever to rotate and open the door, which leads to poor user experience. Chinese Patent No. 2016109216640 also discloses a refrigerator power-assisted door handle assembly, which rotates the handle to make the connecting rod mechanism move, and the push rod in the connecting rod mechanism extends to realize the power-assisted door opening. Similarly, during the use of the user, the handle also needs to be rotated and pulled out from the door body to obtain a large enough stroke to drive the lever to rotate and open the door, which also leads to reduced user experience.

[0003] In view of this, it is necessary to improve the existing power-assisted door handle assembly and the refrigeration equipment having the same to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a power-assisted door handle assembly and a refrigeration device, so that the door opening operation is very simple and labor-saving, and the handle will not contact and rub against the side wall surface of the door body, so that the user experience is better.

[0005] To achieve the above-mentioned object, the present invention provides a power-assisted door handle assembly, the power-assisted door handle assembly comprising a handle extending in a longitudinal direction and a fixing box defining a receiving cavity, wherein the handle is at least partially received in the receiving cavity, wherein:

[0006] The power-assisted door handle assembly also includes a transmission member disposed on the fixed box and movably connected to the handle, and a top rod assembly slidably disposed relative to the fixed box. The top rod assembly includes a top rod extending out of the fixed box, and the transmission member is movably connected to the top rod assembly. The handle is slidably disposed on the fixed box. When the handle is operably slidable relative to the fixed box, the transmission member causes the top rod assembly to slide, so that the top rod moves outward in a direction away from the fixed box.

[0007] As a further improvement of an embodiment of the present invention, the sliding direction of the handle is perpendicular to the longitudinal direction, and the sliding direction of the handle forms an obtuse angle with the sliding direction of the push rod.

[0008] As a further improvement of an embodiment of the present invention, a guide portion for guiding the sliding of the handle is provided on the fixing box, 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.

[0009] As a further improvement of one embodiment of the present invention, the handle includes a handle inclined portion that fits the inclined surface, a hand-held portion for gripping, and a connecting portion connecting the handle inclined portion and the hand-held portion, the handle inclined portion and the hand-held portion are both arranged 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.

[0010] As a further improvement of an embodiment of the present invention, the inclined portion of the handle forms an obtuse angle with the connecting portion, the hand-holding portion is perpendicular to the connecting portion, and the hand-holding portion is at least partially located outside the receiving cavity.

[0011] As a further improvement of an embodiment of the present invention, the handle further includes positioning parts located at both ends of the hand-held part in the longitudinal direction, and the transmission member includes a fixing part movably matched with the positioning part and accommodating the positioning part.

[0012] As a further improvement of one embodiment of the present invention, an elastic member is provided between the handle and the transmission member, the positioning portion is provided as a cylindrical structure with an opening, the elastic member is accommodated in the positioning portion, and one end of the elastic member abuts against the positioning portion, and the other end of the elastic member abuts against the fixing portion.

[0013] As a further improvement of an embodiment of the present invention, the transmission member restricts the handle from being separated from the fixing box.

[0014] As a further improvement of one embodiment of the present invention, the transmission member is rotatably arranged on the fixed box around a rotation axis, the rotation axis, the longitudinal direction and the sliding direction of the push rod are perpendicular to each other, and the transmission member has two opposite ends, one end of which is movably connected to the handle, and the other end of which is connected to the push rod assembly.

[0015] As a further improvement of an embodiment of the present invention, when the handle is operatively slid, the handle generates a certain displacement in a direction along the rotation axis and in a sliding direction of the push rod.

[0016] As a further improvement of one embodiment of the present invention, the push rod assembly includes a bracket for fixing the push rod, the push rod is provided with a pushing portion extending out of the fixing box, the bracket includes a main body extending along the extension direction of the rotation axis and an abutment surface located on one side of the main body, and the transmission member abuts against the abutment surface of the main body.

[0017] As a further improvement of an embodiment of the present invention, the push rod has a pair of clamping arms arranged at intervals in the longitudinal direction, and a groove corresponding to the clamping arm is provided on the main body of the bracket, and the clamping arm is accommodated in the groove.

[0018] As a further improvement of an embodiment of the present invention, the power-assisted door handle assembly also includes a reset member for applying a reset force to the push rod, and the reset member is limited between the inner wall of the fixing box and the side surface of the main body facing away from the abutment surface.

[0019] 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 plates are located on both sides of the handle along the longitudinal direction to cover the transmission member.

[0020] To achieve one of the above-mentioned purposes of the invention, the present invention provides a refrigeration device, comprising a box body with an opening on one side and a door body closing the opening of the box body, wherein: the door body is provided with a power-assisted door handle assembly as described in any of the above technical solutions, the power-assisted door handle assembly is embedded in the side wall surface of the door body, and the top rod of the power-assisted door handle assembly is abutted against the box body.

[0021] Compared with the prior art, the beneficial effect of the present invention is that: in the technical solution provided by the present invention, since the handle is slidably arranged on the fixed box, as long as the handle is pulled to slide relative to the fixed box, the push rod assembly can be caused to slide through the transmission member, so that the push rod moves outward in the direction away from the fixed box, so that the push rod presses the box body to achieve power-assisted door opening. Therefore, the operation is very simple and labor-saving. In addition, by embedding the power-assisted door handle assembly in the door body, the effect of hidden power-assisted door opening is achieved, which is convenient for user operation and helps to improve user experience; in this way, the user can conveniently open the door body of the refrigeration equipment through the power-assisted door handle assembly, and in the process of the handle opening the door body, the handle will not contact and rub against the side wall surface of the door body, thereby avoiding scratches on the handheld end of the handle and the side wall surface of the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional assembly diagram of the refrigeration equipment according to the first embodiment of the present invention.

[0023] Figure 2It is a three-dimensional assembly diagram of a door body and a power-assisted door handle assembly of a refrigeration device according to a first embodiment of the present invention.

[0024] Figure 3 yes Figure 2 A three-dimensional assembly diagram viewed from another direction.

[0025] Figure 4 yes Figure 2 A three-dimensional schematic diagram of the separation of the center door body and the power-assisted door handle assembly.

[0026] Figure 5 yes Figure 4 A three-dimensional schematic diagram of removing the fixing box from the center power-assisted door handle assembly.

[0027] Figure 6 yes Figure 4 A three-dimensional schematic diagram of removing the cover plate of the center power-assisted door handle assembly.

[0028] Figure 7 yes Figure 4 Partial exploded view of the center power-assisted door handle assembly.

[0029] Figure 8 yes Figure 4 Another part of the exploded perspective view of the center power-assisted door handle assembly.

[0030] Fig. 9 yes Figure 4 Exploded perspective view of the center power-assisted door handle assembly.

[0031] Fig.10 yes Figure 4 A three-dimensional schematic diagram of the bracket of the center power-assisted door handle assembly.

[0032] Fig.11 yes Figure 4 Front view of the center power-assisted door handle assembly with the cover removed when not in use.

[0033] Fig.12 is along Fig.11 Section view along line AA.

[0034] Fig.13 is along Fig.11 Sectional view along line BB.

[0035] Fig.14 yes Figure 4 Front view of the center power-assisted door handle assembly with the cover removed when in use.

[0036] Fig.15 is along Fig.14 Sectional view along the CC line.

[0037] Fig.16 is along Fig.14Sectional view along line DD.

[0038] Fig.17 It is a three-dimensional exploded view of a power-assisted door handle assembly provided in a second embodiment of the present invention.

[0039] Fig.18 yes Fig.17 Another three-dimensional exploded enlarged view of the center power-assisted door handle assembly DETAILED DESCRIPTION

[0040] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0041] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0042] In the description of specific embodiments of the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, usually with reference to the refrigeration equipment being in normal use, and do not indicate that the indicated position or element must have a specific direction.

[0043] like Figures 1 to 16 The first embodiment provided by the present invention discloses a door handle assembly 100 and a refrigeration device 400 having the same.

[0044] Reference Figures 1 to 4 As shown, the refrigeration device 400 includes a box body 200 with an open side and a door body 300 that closes the open side of the box body 200. The door body 300 has an inner surface facing the open side of the box body 200, an outer surface 301 parallel to the inner surface, and a side wall surface 302 connected to the inner surface and the outer surface 301, and the power-assisted door handle assembly 100 is embedded in the side wall surface 302 of the door body 300.

[0045] The power-assisted door handle assembly includes a handle 2 extending in the longitudinal direction and a fixed box 1 defining a receiving cavity 10, wherein the handle 2 is at least partially received in the receiving cavity 10. In addition, the power-assisted door handle assembly also includes a transmission member 3 and a push rod assembly 4, wherein the transmission member 3 is disposed in the fixed box 1 and movably coupled with the handle 2, the push rod assembly 4 is slidably disposed relative to the fixed box 1, and the push rod assembly 4 includes a push rod 41 extending out of the fixed box 1, and the push rod 41 abuts against the box body 200. The transmission member 3 is movably coupled with the push rod assembly 4, and the handle 2 is movably disposed in the fixed box 1. Specifically in this embodiment, the handle 2 is slidably disposed in the fixed box 1, and when the handle 2 can be operably slid relative to the fixed box 1, the push rod assembly 4 is prompted to slide through the transmission member 3, so that the push rod 41 moves outward in a direction away from the fixed box 1.

[0046] In this preferred embodiment, since the handle 2 is slidably arranged on the fixed box 1, as long as the handle 2 is pulled to slide relative to the fixed box 1, the push rod assembly 4 can be caused to slide through the transmission member 3, so that the push rod 41 moves outward in the direction away from the fixed box 1, so that the push rod 41 presses the box body 200 to achieve power-assisted door opening. Therefore, the operation is very simple and labor-saving. In addition, by embedding the power-assisted door handle assembly in the door body 300, the effect of hidden power-assisted door opening is achieved, which is convenient for users to operate and is conducive to improving user experience; in this way, the user can conveniently open the door body 300 of the refrigeration equipment through the power-assisted door handle assembly, and in the process of the handle 2 opening the door body 300, the handle 2 will not contact and rub against the side wall surface 302 of the door body 300, thereby avoiding scratches on the handheld end of the handle 2 and the side wall surface 302 of the door body 300.

[0047] In order to provide space for pulling the handle 2 and facilitate the operation of the handle 2, when the handle 2 is in a free state without being 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, it can also be arranged that the end of the handle 2 adjacent to the outer surface of the door body 300 does not protrude from the side wall surface 302 of the door body 300. As long as the handle 2 is designed so that it does not interfere with the door body 300 when sliding.

[0048] The sliding direction of the handle 2 is perpendicular to the longitudinal direction, and the sliding direction of the handle 2 forms an obtuse angle with the sliding direction of the top rod 41. In other words, the handle 2 moves obliquely. In this embodiment, the longitudinal direction is the height direction of the refrigeration device 400, and the sliding direction of the top rod 41 is the depth direction of the refrigeration device.

[0049] Furthermore, the fixing box 1 is provided with a guide portion for guiding the sliding movement of the handle 2 , and the guide portion 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 , so as to guide the inclined sliding movement of the handle 2 .

[0050] Specifically, the handle 2 includes a handle inclined portion 23 that fits the inclined surface 112, a hand-held portion 21 for gripping, and a connecting portion 25 connecting the handle inclined portion 23 and the hand-held portion 21. The handle inclined portion 23 and the hand-held portion 21 are both arranged at an angle to the connecting portion 25, and the handle inclined portion 23 and the hand-held portion 21 are located on opposite sides of the connecting portion 25. The hand-held portion 21 is arranged closer to the outer surface of the door body 300. When the handle 2 is pulled, the handle 2 generates a certain displacement in the direction of gradually approaching the outer surface of the door body 300 and in the direction away from the side wall surface 302.

[0051] The handle inclined portion 23 forms an obtuse angle with the connecting portion 25, the hand-held portion 21 is substantially perpendicular to the connecting portion 25, and the hand-held portion 21 is at least partially located outside the receiving cavity 10. In this way, it is easy to operate, and when the handle 2 is pulled to slide, the handle 2 will not interfere with the door body 300.

[0052] The handle 2 further includes positioning parts 22 located at both ends of the hand-held part 21 in the longitudinal direction, and the transmission member 3 includes a fixing part 32 movably matched with the positioning part 22 and accommodating the positioning part 22. Accordingly, the transmission member 3 and the push rod assembly 4 are both provided in two.

[0053] An elastic member 5 is provided between the handle 2 and the transmission member 3, the positioning portion 22 is provided as a cylindrical structure with an opening, the elastic member 5 is accommodated in the positioning portion 22, and 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. Specifically, the elastic member 5 is provided as a compression spring. In addition, the transmission member 3 limits the handle 2 from being separated from the fixing box 1. Specifically in this embodiment, the fixing portion 32 stops the positioning portion 22 to limit the handle 2 from being separated from the fixing box 1.

[0054] The open end of the positioning portion 22 is spaced a certain distance from the inner wall of the fixing portion 32, so that when the handle 2 is pulled out, the positioning portion 22 can move toward the inside of the fixing portion 32 through the elastic compression of the elastic member 5. In addition, the power-assisted door handle assembly 100 also includes a connecting member 6 disposed between the elastic member 5 and the fixing portion 32. Specifically, the connecting member is fixed to the inner wall of the fixing portion 32, one end of the connecting member 6 is positioned and connected to the elastic member 5, and the other end abuts against the inner wall of the fixing portion 32, and the elastic member 5 is sleeved on the outer periphery of the connecting member 5. The connecting member 6 has a head abutting against the fixing portion 32 and a tail smaller in size than the head. The size of the elastic member 5 is consistent with that of the tail, so that the elastic member 5 is sleeved on the tail and is restricted by the head and will not be separated from the connecting member 6.

[0055] Furthermore, the transmission member 3 is rotatably disposed on the fixed box 1 around the rotation axis, the rotation axis, the longitudinal direction and the sliding direction of the push rod 41 are perpendicular to each other, and the transmission member 3 has two opposite ends, one end of which is movably connected to the handle 2, and the other end of which is connected to the push rod assembly 4. Specifically, the transmission member 3 is in contact with the push rod assembly 4. Of course, other connection methods can also be used between the transmission member 3 and the push rod assembly 4.

[0056] When the handle 2 is operated to move relative to the fixed box 1, the positioning portion 22 and the fixing portion 32 move relative to each other in a direction parallel to the axis of rotation, and the fixing portion 32 rotates relative to the positioning portion 22, 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 outward in a direction away from the fixed box 1. Therefore, as long as the handle 2 moves a small displacement, the push rod 41 can move a certain distance to press the box body, so that the space for the handle to move is small and will not interfere with the door body. Specifically in this embodiment, the handle 2 is slidably arranged on the fixed box 1. Of course, the handle 2 can also be arranged on the fixed box 1 in other movable arrangements. As long as the positioning portion 22 and the fixing portion 32 both produce relative linear movement and relative rotation, the push rod assembly 4 can be caused to move linearly through the rotation of the transmission member 3. When the handle 2 is operated to tilt and slide relative to the fixed box 1, the positioning portion 22 moves toward the bottom wall of the fixed portion 32 in the extension direction of the rotation axis. At the same time, the positioning portion 22 and the fixed portion 32 rotate relative to each other, the elastic member 5 is compressed, and the transmission member 3 rotates relative to the fixed box 1 to push the push rod assembly 4 to move linearly relative to the fixed box 1, so that the push rod 41 moves outward in the direction protruding from the fixed box 1, thereby pressing the box body 200 to achieve power-assisted door opening.

[0057] When the handle 2 is operated to slide, the handle 2 generates a certain displacement in the direction along the rotation axis and in the sliding direction of the push rod 41. When the handle 2 is pulled from the free state to the final state, the grip portion 21 gradually moves away from the side wall surface 302 and gradually approaches the outer surface of the door body 300, but until the handle 2 is pulled to the final state, the grip portion 21 of the handle 2 does not protrude from the outer surface of the door body 300.

[0058] Reference Fig.10 As shown, the push rod assembly 4 also 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 421 extending along the extension direction of the rotation axis and a contact surface 422 located on one side of the main body 421, and the transmission member 3 is in contact with the contact surface 422 of the main body 421. In addition, the push rod 41 has a pair of clamping arms 44 arranged at intervals in the longitudinal direction and a crossbeam 45 connecting the pair of clamping arms 44, and a groove 425 corresponding to the clamping arm 44 is provided on the main body of the bracket 42, and the clamping arm 44 is accommodated in the groove 425.

[0059] The bracket 42 further includes side plates 423 disposed at both ends of the main body 421 in the sliding direction of the push rod 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 push rod 41 is accommodated in one of the limiting spaces, the clamping arm 44 is accommodated in the groove 425, and the crossbeam 45 abuts against the main body 421. The push portion 43 is larger than the opening 118 and abuts against the box body 200 in the sliding direction of the push rod 41.

[0060] The power-assisted door handle assembly further includes a reset member 7 for applying a reset force to the ejector rod 41. The reset member 7 is limited between the inner wall of the fixing box 1 and the side of the main body 421 facing away from the abutment surface 422, that is, the reset member 7 is accommodated in another limited space different from the one accommodating the ejector rod 41. When the handle 2 is released, the reset member 7 is used to reset the ejector rod 41. The inner wall of the positioning groove 116 of the fixing box 1 and the main body 421 both have protruding columns protruding toward each other. In the present invention, the reset member 7 is a spring structure, and both ends of the reset member 7 are sleeved and fixed on the protruding columns to form a stable connection.

[0061] The fixing box 1 is provided with a cover plate 12 for preventing the transmission member 3 from being separated from the fixing box 1. The cover plates 12 are located on both sides of the handle 2 along the longitudinal direction to cover the transmission member 3. Figures 8 to 15 As shown, the cover plate 12 is provided at both ends of the fixing box 1 and connected to both ends of the handle 2. The receiving chamber 10 is extended along the longitudinal direction, the fixing box 1 is open at one end along the width direction of the refrigeration device, and the handle 2 is provided on the open side of the fixing box 1. The cover plate 12 is correspondingly provided on the transmission member 3 and the top rod assembly 4 to prevent the transmission member 3 from being separated from the fixing box 1 when rotating.

[0062] A sliding groove 113 is provided in the fixing box 1. The sliding groove 113 extends along the width direction of the refrigeration device 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. Fig.12 and Fig.15As shown, 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 body 300 to the side closer to the inner surface of the door body 300, the inclined surface 112 extends obliquely toward the side wall surface 302 gradually away from the door body 300. The fixing box 1 also includes a receiving groove 114 arranged at both ends of the inclined surface 112 along the longitudinal direction, and the receiving groove 114 and the inclined surface 112 are separated by a partition wall 115. The fixing box 1 is also provided with a positioning groove 116 for accommodating the ejector assembly 4 at both ends in the longitudinal direction. An opening 118 connected to the positioning groove 116 is provided on the side of the fixing box 1 close to the inner surface of the door body 300, so that the ejector assembly 4 extends out of the fixing box 1 from the opening 118. A rotating shaft 117 is protrudingly provided in the fixing box 1. 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 box 1 via the rotating shaft 117.

[0063] Reference Figures 1 to 15 As shown, the positioning portion 22 is located in the receiving cavity 10 and received in the receiving groove 114. The handle inclined portion 23 is provided with a protrusion 24 that slides with the sliding groove 113 of the fixed box 1 to limit the handle 2 to tilt outwardly along the direction of the rotation axis and the sliding direction of the top rod 41 at the same time.

[0064] In the present invention, the handle inclined portion 23 is aligned with the inclined surface 112 of the fixed box 1 to guide the handle 2 to move outward along the inclined direction when pulled, that is, to move outward along the direction of the rotation axis and the sliding direction of the push rod 41 at the same time. Of course, a preferred solution in this embodiment is simple in structure and easy to implement. In other embodiments, the fixed box 1 and the handle 2 may not have an inclined surface 112 and a handle inclined portion 2323 aligned therewith, but the sliding groove 113 may be set as an inclined structure, so that when the protrusion 24 on the handle 2 moves outward along the inclined sliding groove 113, the effect of moving outward along the direction of the rotation axis and the sliding direction of the push rod 41 can be achieved at the same time. Of course, the sliding groove 113 can also be set on the handle 2, and correspondingly, the protrusion 24 can be set on the fixed box 1. Similarly, other sliding matching structures can also be used as long as the effect of the handle 2 moving outward along the direction of the rotation axis and the sliding direction of the push rod 41 can be achieved at the same time. Related similar designs can also be included in the technical concept of the present invention.

[0065] 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 the two ends of the rotating portion 31. The rotating portion 31 is a hollow cylindrical structure sleeved on the rotating shaft 117. In the present invention, the fixed portion 32 is set as a cylindrical structure with an open mouth, and in the direction along the rotation axis, the open mouth of the fixed portion 32 faces away from the handle 2, and the positioning portion 22 is accommodated in the fixed portion 32. The positioning portion 22 can move on the fixed portion 32 along the extension direction of the rotation axis, and when the handle 2 moves, the positioning portion 22 can drive the fixed portion 32 to move in the receiving groove 114 along the sliding direction of the push rod 41, so that the transmission member 3 rotates. Since the transmission member 3 abuts against the push rod assembly 4, one end of the push rod assembly 4 abuts and positions against the abutting portion 33 to form a linkage structure, which finally causes the push rod assembly 4 to slide relative to the fixed box 1.

[0066] Reference Figures 11 to 13 As shown, the door body 300 is closed and arranged on the box body 200, and the power-assisted door handle assembly 100 is in a non-use state. The protruding portion 24 of the handle 2 is located at one end of the sliding groove 113 close to the box body 200, the fixing portion 32 of the transmission member 3 and the positioning portion 22 of the handle 2 are located on the side of the receiving groove 114 close to the box body 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 receiving groove 114, the open end of the positioning portion 22 is spaced a certain distance from the inner wall of the fixing portion 32, and the abutting portion 33 of the transmission member 3 is located on the side of the positioning groove 116 away from the box body 200. The push portion 43 abuts against the box body 200.

[0067] Reference Figures 14 to 16 As shown, the door body 300 is separated from the box body 200, and the power-assisted door handle assembly 100 is in use. That is, when the handle 2 is pulled outward, that is, the handle 2 is pulled toward the outer surface of the door body 300, the handle inclined portion 2323 of the handle 2 slides in the sliding groove 113 through the protrusion 24 and moves obliquely outward along the inclined surface 112, so that the handle 2 is simultaneously obliquely moved outward along the extension direction of the rotation axis and the sliding direction of the push rod 41. At this time, the positioning portion 22 moves outward on the fixing portion 32 along the extension direction of the rotation axis, so that the elastic member 5 is compressed and deformed. At the same time, the positioning portion 22 drives the fixing portion 32 to move outward along the receiving groove 114, so that the transmission member 3 rotates relative to the fixing box 1, so that the abutting portion 33 moves inward toward the direction close to the pushing portion 43, and pushes the pushing portion 43 of the push rod assembly 4 to extend toward the outside of the fixing box 1, so that the pushing portion 43 pushes against the box body 200 and generates a reaction force on the door body 300, so that the door body 300 is opened, realizing labor-saving and convenient door opening. After the handle 2 is released, the push rod 41 and the transmission member 3 return to the non-operating state through the reset member 7, the fixing portion 32 and the positioning portion 22 return to the non-operating state through the elastic member 5, and thus the handle 2 also returns to the non-operating state.

[0068] like Fig.17 and Fig.18 As shown, the second embodiment provided by the present invention is different from the first embodiment in that, in this embodiment, no sliding groove is provided in the fixed box 201, and no protrusion that matches the sliding groove is provided on the handle 203. In addition, in this embodiment, a synchronization structure is provided between the handle 203 and the fixed box 201 to ensure that the handle 203 is operated to slide synchronously up and down. The other structural forms are the same as the first embodiment, and only the different parts are described in detail below, and the same parts are not described in detail.

[0069] The synchronous structure provides at least two mating points between the handle 203 and the fixed box 201 in the longitudinal direction, so that when the handle 203 is operated at any position to slide relative to the fixed box 201, the handle 203 can slide synchronously in the longitudinal direction, thereby causing the push rod to move outward away from the fixed box 201 through the transmission member. In this way, synchronous sliding can be achieved regardless of the position of the operating handle 203, making the operation more convenient and the structure more reliable.

[0070] The synchronization structure 205 includes a synchronization member 207 disposed on one of the handle 203 and the fixed box 201, and at least two matching parts disposed on the other of the handle 203 and the fixed box 201, wherein the at least two matching parts are arranged at intervals in the longitudinal direction, and the at least two matching parts are matched with the synchronization member 207. Specifically in this preferred embodiment, the synchronization member 207 is fixedly disposed on the handle 203, and correspondingly, the at least two matching parts are disposed on the fixed box 201. Of course, the synchronization member 207 can also be disposed on the fixed box 201, and correspondingly, the at least two matching parts are disposed on the handle 203.

[0071] Furthermore, the synchronizer 207 is formed by bending a metal wire, and the synchronizer 207 has an intermediate body 209, a first bending portion 211 located at one end of the intermediate body 209, and a second bending portion 213 located at the other end of the intermediate body 209, the intermediate body 209, the first bending portion 211, and the second bending portion 213 are on the same plane, and the matching portion includes a first matching groove 215 and a second matching groove 217 provided on the fixed box 201, wherein the first matching groove 215 matches with the first bending portion 211, and the second matching groove 217 matches with the second bending portion 213. Because the synchronizer 207 is formed by bending a section of metal wire, the synchronization of the handle 203 in the longitudinal direction is further ensured. Specifically, the synchronizer 207 is a steel wire. In addition, the synchronizer 207 is formed by bending a metal wire, and the structure is simpler and the cost is lower. Furthermore, in this embodiment, a push rod guide 219 is further provided on the fixing box 201 , and the push rod 221 is disposed on the push rod guide 219 .

[0072] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A power-assisted door handle assembly, comprising a handle extending in a longitudinal direction and a fixing box defining a receiving cavity, wherein the handle is at least partially received in the receiving cavity, characterized in that: The power-assisted door handle assembly also includes a transmission member disposed on the fixed box and movably matched with the handle, and a push rod assembly slidably disposed relative to the fixed box, the push rod assembly includes a push rod extending out of the fixed box, and the transmission member is movably matched with the push rod assembly, the handle is slidably disposed on the fixed box, when the handle is operably slidable relative to the fixed box, the push rod assembly is caused to slide by the transmission member so that the push rod moves outward in a direction away from the fixed box, the handle includes a hand-held portion for grasping and a positioning portion located at both ends of the hand-held portion in the longitudinal direction, the transmission member includes a fixing portion movably matched with the positioning portion and accommodating the positioning portion, an elastic member is disposed between the handle and the transmission member, the positioning portion is configured as a cylindrical structure with an opening, the elastic member is accommodated in the positioning portion, and one end of the elastic member abuts against the positioning portion, and the other end of the elastic member abuts against the fixing portion, and the fixed box includes a cover plate for preventing the transmission member from detaching from the fixed box.

2. The power-assisted door handle assembly according to claim 1, characterized in that: The sliding direction of the handle is perpendicular to the longitudinal direction, and the sliding direction of the handle forms an obtuse angle with the sliding direction of the push rod.

3. The power-assisted door handle assembly according to claim 1, characterized in that: The fixing box is provided with a guiding portion for guiding the sliding movement of the handle, the guiding 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.

4. The power-assisted door handle assembly according to claim 3, characterized in that: The handle includes a handle inclined portion that fits the inclined surface, and a connecting portion connecting the handle inclined portion and a hand-holding portion. The handle inclined portion and the hand-holding portion are both arranged at an angle to the connecting portion, and the handle inclined portion and the hand-holding portion are located on opposite sides of the connecting portion.

5. The power-assisted door handle assembly according to claim 4, characterized in that: The inclined portion of the handle forms an obtuse angle with the connecting portion, the hand-holding portion is perpendicular to the connecting portion, and at least a portion of the hand-holding portion is located outside the receiving cavity.

6. The power-assisted door handle assembly according to claim 1, characterized in that: The transmission member restricts the handle from being separated from the fixing box.

7. The power-assisted door handle assembly according to claim 1, characterized in that: The transmission member is rotatably arranged on the fixed box around a rotation axis, the rotation axis, the longitudinal direction and the sliding direction of the push rod are all perpendicular to each other, and the transmission member has two opposite ends, one end of which is movably connected to the handle, and the other end of which is connected to the push rod assembly.

8. The power-assisted door handle assembly according to claim 7, characterized in that: When the handle is operatively slid, the handle generates a certain displacement in the direction along the rotation axis and in the sliding direction of the push rod.

9. The power-assisted door handle assembly according to claim 7, characterized in that: The push rod assembly includes a bracket for fixing the push rod, the push rod is provided with a pushing portion extending from the fixing box, the bracket includes a main body extending along the extension direction of the rotation axis and an abutment surface located on one side of the main body, and the transmission member abuts against the abutment surface of the main body.

10. The power-assisted door handle assembly according to claim 9, characterized in that: The push rod has a pair of clamping arms arranged at intervals in the longitudinal direction, and a groove corresponding to the clamping arm is arranged on the main body of the bracket, and the clamping arm is accommodated in the groove.

11. The power-assisted door handle assembly according to claim 9, characterized in that: The power-assisted door handle assembly further comprises a reset member for applying a reset force to the push rod, wherein the reset member is located between an inner wall of the fixing box and a side surface of the main body facing away from the abutting surface.

12. The power-assisted door handle assembly according to claim 1, characterized in that: The cover plates are located at both sides of the handle along the longitudinal direction to cover the transmission member.

13. A refrigeration device, comprising a box body with one side open and a door body closing the open side of the box body, characterized in that: The door body is provided with a power-assisted door handle assembly as described in any one of claims 1 to 12, the power-assisted door handle assembly is embedded in the side wall surface of the door body, and the top rod of the power-assisted door handle assembly is against the box body.

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