Refrigerator with door opening labor saving

Abstract

The application discloses a door-opening labor-saving refrigerator, relates to the technical field of horizontal refrigerators, and is characterized in that the opening side of the door body is provided with a handle, a lifting handle is slidably arranged on the inner side of the handle, and a push rod rocker arm and a pull wire rocker arm are respectively arranged on the two sides of the lifting handle; the middle part of the push rod rocker arm is hingedly connected to the door body, the rear end of the push rod rocker arm is arranged on the lifting handle, and the front end of the push rod rocker arm is hingedly connected to a push rod which can slide on the door body; the front end of the pull wire rocker arm is fixedly connected to a pull wire structure, the middle part of the pull wire rocker arm is arranged on the lifting handle, and the rear end of the pull wire rocker arm is hingedly connected to the door body; the upper end of the door body is provided with a first air hole, the lower end of the door body is provided with a second air hole, the first air hole and the second air hole are communicated in the door body, and a first plug and a second plug are slidably arranged on the door body; the pull wire structure comprises a first pull wire connected to the pull wire rocker arm and a second pull wire connected to the first plug and the second plug respectively. The application can balance the air pressure inside and outside the refrigerator before the door is opened, and the opening of the door body is time-saving and labor-saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of horizontal refrigerators, in particular to a horizontal refrigerator with labor-saving door opening. BACKGROUND

[0002] The horizontal refrigerator is a refrigeration equipment keeping constant low temperature, and is a common electric appliance for low-temperature preservation of articles in life. The horizontal refrigerator is widely used in commercial and household fields due to its large storage capacity.

[0003] The horizontal refrigerator product has a large temperature difference between the inside and outside of the cabinet. In order to ensure the refrigeration effect of the refrigerator, the sealing of the door body is required to be good. Therefore, the temperature in the cabinet drops suddenly and the pressure in the cabinet decreases at the moment when the door body is closed. The external atmospheric pressure tightly presses the door body on the cabinet body, so that a large force is required to open the door body, and the cover is difficult to open. SUMMARY

[0004] The purpose of the present application is to provide a refrigerator with labor-saving door opening, which aims to solve the technical problem of difficult opening of the door body of the horizontal refrigerator in the prior art.

[0005] To solve the above technical problems, the technical scheme of the present application is as follows:

[0006] A refrigerator with labor-saving door opening, comprising a cabinet body and a door body, the opening side of the door body is provided with a handle, the inner side of the handle is provided with a lifting handle driven downward by a first elastic mechanism, and the two sides of the lifting handle are respectively provided with a push rod rocker and a pull wire rocker which can slide and swing; the middle part of the push rod rocker is hinged to the door body, the rear end of the push rod rocker is installed on the lifting handle, and the front end of the push rod rocker is hinged to a push rod which can slide on the door body; the front end of the pull wire rocker is fixedly connected with a pull wire structure, the middle part of the pull wire rocker is installed on the lifting handle, and the rear end of the pull wire rocker is hinged to the door body; a first air hole communicating with the outside is formed in the upper end of the door body, a second air hole communicating with the cabinet body is formed in the lower end of the door body, the first air hole and the second air hole are communicated in the door body, and a first plug driven by a second elastic mechanism to close the first air hole and a second plug driven by a third elastic mechanism to close the second air hole are slidably installed on the door body; the pull wire structure comprises a first pull wire connected with the pull wire rocker and a second pull wire connected with the first plug and the second plug respectively, and the other end of the second pull wire is connected with the first pull wire.

[0007] Preferably, first and second waist round holes are formed in the two ends of the lifting handle respectively, a first hinge shaft is fixedly connected to the push rod rocker and installed in the first waist round hole, and a second hinge shaft is fixedly connected to the pull wire rocker and installed in the second waist round hole.

[0008] Preferably, when the lifting handle is located at the lower limit position, the first and second hinge shafts are located at the sides away from the first and second waist round holes respectively.

[0009] Preferably, the first plug and the second plug each comprise a plug body and a rod body, the plug body is arranged in a conical shape, and the first air passage and the second air passage are conical holes.

[0010] Preferably, the door body is fixedly connected with a first shell and a second shell which cover the first air passage and the second air passage respectively, and the side portions of the first shell and the second shell are connected through the air guide pipe.

[0011] Preferably, the rod body of the first plug is slidingly installed on the first shell, and the second elastic mechanism is a first compression spring sleeved on the rod body between the plug body and the first shell; and the rod body of the second plug is slidingly installed on the second shell, and the second elastic mechanism is a second compression spring sleeved on the rod body between the plug body and the second shell.

[0012] Preferably, a through hole is formed in the rod body, a circular groove is formed in the plug body, a connecting hole is formed in the plug body and connects the through hole and the circular groove, the side portions of the plug body and the rod body are provided with openings which connect the circular groove, the connecting hole and the through hole, a cover body is installed at the end of the rod body away from the plug body, the end of the second pull wire away from the first pull wire passes through the cover body, and a clamping block is fixedly connected to the end of the second pull wire passing through the cover body; the second pull wire can enter the through hole through the opening, and the clamping block can be clamped into the circular groove through the opening.

[0013] Preferably, the cover body is screwed on the rod body, and the second pull wire passes through the cover body and is fixedly connected to the cover body.

[0014] Preferably, the pull wire structure further comprises a box body, the connecting ends of the first pull wire and the second pull wire are located in the box body, one end of the box body is fixedly connected with a first wire sleeve, the first pull wire slides in the first wire sleeve, and the other end of the box body is fixedly connected with two second wire sleeves, and the two second pull wires slide in the two second wire sleeves respectively.

[0015] Preferably, the door body is provided with a first sliding sleeve, and the push rod is slidingly arranged in the first sliding sleeve.

[0016] After the above technical scheme is adopted, the application has the following beneficial effects:

[0017] 1. When the door is opened and the handle is pulled, the handle is first pulled, the handle drives the push rod rocker arm and the pull wire rocker arm to swing downward, the pull wire rocker arm drives the first pull wire to move upward, the second pull wire is tightened, and the first plug and the second plug are opened to open the first air passage and the second air passage, thereby connecting the inside and the outside of the refrigerator, and balancing the air pressure inside and outside the refrigerator; at the same time, the push rod rocker arm drives the push rod to move downward, so that the push rod pushes the door sealing strip and the cabinet opening apart to form a gap, and the local door sealing strip starts to move away from the cabinet body from the inside. At this time, the handle is pulled upward again, so that the door opening is time-saving and labor-saving.

[0018] 2, when the door body is closed, the handle is loosened, the handle is reset under the action of the first elastic mechanism, the push rod rocker and the pull wire rocker swing upward, the push rod moves up, the first pull wire and the second pull wire are loosened, the first plug is closed under the action of the second elastic mechanism, the second plug is closed under the action of the third elastic mechanism, the sealing performance of the door body is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structure schematic diagram of the refrigerator of the present application (unopened state) which saves labor when opening the door;

[0020] Figure 2 is a structure schematic diagram of the refrigerator of the present application (opened state) which saves labor when opening the door;

[0021] Figure 3 is a structure schematic diagram of the push rod in the state of contraction before the refrigerator is opened;

[0022] Figure 4 is a structure schematic diagram of the push rod in the state of extension after the refrigerator is opened;

[0023] Figure 5 is a schematic diagram of the first plug and the second plug before the refrigerator is opened;

[0024] Figure 6 is a schematic diagram of the first plug and the second plug after the refrigerator is opened;

[0025] Figure 7 is a structure schematic diagram of the first plug;

[0026] Figure 8 is a sectional structure schematic diagram of the first plug;

[0027] Figure 9 is a structure schematic diagram of the pull wire in the state of tightening;

[0028] Figure 10 is a structure schematic diagram of the pull wire in the state of loosening;

[0029] Figure 11 is a structure schematic diagram of the slide rod and the slide hole.

[0030] In the diagram, cabinet 1, door 2, sealing strip 20, first vent 21, second vent 22, first plug 23, plug body 230, rod body 231, first compression spring 232, circular groove 233, through hole 234, connecting hole 235, cover 236, locking block 237, opening 238, second plug 24, second compression spring 240, first housing 25, second housing 26, air duct 27, first sliding sleeve 28, second sliding sleeve 29, handle 3, second mounting sleeve 30 The components include: third compression spring 31, handle 4, first oblong hole 40, second oblong hole 41, first mounting sleeve 42, sliding hole 43, sliding rod 44, limiting protrusion 45, push rod rocker arm 5, push rod 50, first hinge shaft 51, third hinge shaft 52, fifth hinge shaft 53, pull wire rocker arm 6, second hinge shaft 60, fourth hinge shaft 61, mounting shaft 62, pull ring 63, first pull wire 7, second pull wire 70, box body 71, first wire sleeve 72, second wire sleeve 73, and connecting block 74. Detailed Implementation

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] The orientations mentioned in this specification are based on the orientation of the refrigerator with easy-to-open door according to the present invention during normal operation, and do not limit its orientation during storage and transportation. They only represent relative positional relationships and do not represent absolute positional relationships.

[0033] like Figures 1 to 11 As shown, a refrigerator with easy-to-open door includes a cabinet body 1 and a door body 2. A sealing strip 20 is provided on the door body 2. The sealing strip 20 is compressed when the door body 2 is closed, sealing the door body 2 and the cabinet body 1. A handle 3 that can move up and down is provided on the opening side of the door body 2. A lifting handle 4 driven by a first elastic mechanism is provided on the inner side of the handle 3. A sliding and swinging push rod rocker arm 5 and a pull cord rocker arm 6 are respectively installed on both sides of the lifting handle 4. The middle part of the push rod rocker arm 5 is hinged to the door body 2, the rear end of the push rod rocker arm 5 is mounted on the lifting handle 4, and the front end of the push rod rocker arm 5 is hinged to a push rod 50 that can slide on the door body 2. A pull cord structure is fixedly connected to the front end of the pull cord rocker arm 6, the middle part of the pull cord rocker arm 6 is installed on the handle 4, and the rear end of the pull cord rocker arm 6 is hinged to the door body 2; the upper end of the door body 2 is provided with a first vent 21 that connects to the outside, and the lower end of the door body 2 is provided with a second vent 22 that connects to the cabinet body 1. The first vent 21 and the second vent 22 are connected inside the door body 2. A first plug 23 driven by a second elastic mechanism to close the first vent 21 and a second plug 24 driven by a third elastic mechanism to close the second vent 22 are slidably installed on the door body 2; the pull cord structure includes a first pull cord 7 connected to the pull cord rocker arm 6 and a second pull cord 70 connected to the first plug 23 and the second plug 24 respectively, and the other end of the second pull cord 70 is connected to the first pull cord 7.

[0034] The middle part of the push rod rocker arm 5 is welded with a third hinge shaft 52, the rear part of the pull wire rocker arm 6 is welded with a fourth hinge shaft 61, and the third hinge shaft 52 and the fourth hinge shaft 61 are rotatably installed on the door body 2. The front end of the push rod rocker arm 5 is welded with a fifth hinge shaft 53, and the push rod 50 is rotatably installed on the fifth hinge shaft 53. The front end of the pull wire rocker arm 6 is welded with a mounting shaft 62, one end of the first pull wire 7 is fixedly connected with a pull ring 63, and the pull ring 63 is rotatably installed on the mounting shaft 62.

[0035] The pull wire structure further comprises a box body 71, the connecting ends of the first pull wire 7 and the second pull wire 70 are located in the box body 71, one end of the box body 71 is fixedly connected with a first wire sleeve 72, the first pull wire 7 slides in the first wire sleeve 72, and the other end of the box body 71 is fixedly connected with two second wire sleeves 73, and the two second pull wires 70 respectively slide in the two second wire sleeves 73. Preferably, the first wire sleeve 72 and the second wire sleeve 73 are welded on the box body 71, and the first pull wire 7 and the second pull wire 70 are connected on a connecting block 74 arranged in the box body 71. The arrangement of the first wire sleeve 72 and the second wire sleeve 73 can guide the movement of the first pull wire 7 and the second pull wire 70 respectively.

[0036] Preferably, the two ends of the handle 4 are slidably installed on the door body 2, the two ends of the handle 4 are provided with sliding holes 43, and the door body 2 is fixedly connected with sliding rods 44 slidably arranged in the sliding holes 43. The lower end of the sliding rod 44 is provided with a limiting protrusion 45, and the sliding guide structure of the handle 4 is a conventional structure which will not be repeated here.

[0037] The door body 2 is provided with a first sliding sleeve 28, and the push rod 50 is slidably arranged in the first sliding sleeve 28. The arrangement of the first sliding sleeve 28 can guide the sliding of the push rod 50. The door body 2 is provided with a second sliding sleeve 29, and the pull wire is slidably arranged in the second sliding sleeve 29. The arrangement of the second sliding sleeve 29 can guide the sliding of the pull wire. Preferably, the first sliding sleeve 28 and the second sliding sleeve 29 are screwed on the door body 2.

[0038] The handle 4 is fixedly connected with two symmetrically arranged first mounting sleeves 42, the handle 3 is fixedly connected with a second mounting sleeve 30 corresponding to the arrangement of the first mounting sleeve 42, the first elastic mechanism is a third compression spring 31, and the two ends of the third compression spring 31 are arranged in the first mounting sleeve 42 and the second mounting sleeve 30 respectively. Preferably, the first mounting sleeve 42 is welded on the handle 4, and the second mounting sleeve 30 is welded on the handle 3. The handle 4 is located at the lower limit position of the handle 4 under the action of the two third compression springs 31.

[0039] The lower side of the handle 4 is open, and when the handle 4 is located at the lower limit position, the two ends of the handle 4 abut against the door body 2. When the handle 3 is pulled, the hand is inserted into the opening 238 to pull up the handle 4.

[0040] When the door is opened and the handle 3 is pulled, the handle 4 on the handle 3 is pulled first, the handle 4 drives the push rod rocker arm 5 and the pull wire rocker arm 6 to swing downward, the pull wire rocker arm 6 drives the first pull wire 7 to move upward, the second pull wire 70 is tightened, drives the first plug 23 and the second plug 24 to open the first air hole 21 and the second air hole 22, and conducts the inside and outside of the refrigerator, balances the air pressure inside and outside the refrigerator; at the same time, the push rod rocker arm 5 drives the push rod 50 to move downward, so that the push rod 50 partially pushes the door body 2 sealing strip 20 and the cabinet opening to form a gap, and the local door body 2 sealing strip 20 starts to separate from the cabinet body 1. At this time, the handle 3 is pulled upward, so that the door body 2 is opened and the labor is saved; when the door body 2 is closed, the handle 3 is released, the handle 4 is lowered and reset under the action of the first elastic mechanism, the push rod rocker arm 5 and the pull wire rocker arm 6 swing upward, the push rod 50 moves upward, the first pull wire 7 and the second pull wire 70 are released, the first plug 23 is closed under the action of the second elastic mechanism, the second plug 24 is closed under the action of the third elastic mechanism, and the sealing performance of the door body 2 is guaranteed.

[0041] Among them, the push rod 50 is shovel-shaped, the bottom of the push rod 50 has a large contact area with the cabinet body 1, which facilitates the push rod 50 to push the door body 2 sealing strip 20 and the cabinet opening to form a gap.

[0042] Among them, the two ends of the handle 4 are respectively provided with a first waist round hole 40 and a second waist round hole 41, the push rod rocker arm 5 is fixedly connected with a first hinge shaft 51, the first hinge shaft 51 is installed in the first waist round hole 40, and the pull wire rocker arm 6 is fixedly connected with a second hinge shaft 60, the second hinge shaft 60 is installed in the second waist round hole 41. The cooperation of the hinge shaft and the waist round hole realizes the swinging and sliding of the push rod rocker arm 5 and the pull wire rocker arm 6 on the handle 4 respectively, when the handle 4 moves upward, the first waist round hole 40 and the second waist round hole 41 move upward, drive the first hinge shaft 51 and the second hinge shaft 60 to swing upward and inward of the waist round hole, and drive the push rod rocker arm 5 and the pull wire rocker arm 6 to swing downward.

[0043] Among them, when the handle 4 is at the lower limit position, the first hinge shaft 51 and the second hinge shaft 60 are respectively located at the side away from the first waist round hole 40 and the second waist round hole 41. When in use, the lower limit position of the handle 4 can be limited to avoid the handle 4 from falling off the handle 3.

[0044] Among them, the door body 2 is fixedly connected with a first shell 25 and a second shell 26 which are respectively arranged on the first air hole 21 and the second air hole 22, and the side parts of the first shell 25 and the second shell 26 are communicated through a gas guide pipe 27. It is preferred that the first shell 25 and the second shell 26 are welded on the door body 2. The arrangement of the first shell 25 and the second shell 26 can facilitate the installation of the first plug 23 and the second plug 24, and the arrangement of the gas guide pipe 27 can facilitate the communication of the first air hole 21 and the second air hole 22.

[0045] As a preferred case of the embodiment, the first plug 23 and the second plug 24 each comprise a plug body 230 and a rod body 231, the plug body 230 and the rod body 231 are integrally formed, the plug body 230 is conical, and the first air hole 21 and the second air hole 22 are conical holes. The conical plug body 230 is matched with the conical air hole, which can improve the sealing performance of the plug, avoid air leakage of the door body 2, reduce the convection of heat inside and outside the refrigerator, and play a heat preservation role. Prevent ice from easily forming between the inside and the outside, and freeze the plug.

[0046] As a further improvement of the application, the rod body 231 of the first plug 23 is slidingly installed on the first shell 25, and the second elastic mechanism is a first compression spring 232 sleeved on the rod body 231 between the plug body 230 and the first shell 25; the rod body 231 of the second plug 24 is slidingly installed on the second shell 26, and the second elastic mechanism is a second compression spring 240 sleeved on the rod body 231 between the plug body 230 and the second shell 26. In use, when the handle 3 is pulled and the lifting handle 4 on the handle 3 is pressed upward, the second pull wire 70 is tightened, the rod body 231 and the plug body 230 are pulled inward, and the first compression spring 232 and the second compression spring 240 are contracted; after the lifting handle 4 is released, the first compression spring 232 and the second compression spring 240 are elongated, driving the plug to move outward to close the first air hole 21 and the second air hole 22.

[0047] As a further improvement of the application, a through hole 234 is formed on the rod body 231, a circular groove 233 and a connecting hole 235 connecting the through hole 234 and the circular groove 233 are formed on the plug body 230, and an opening 238 connecting the circular groove 233, the connecting hole 235 and the through hole 234 is formed on the side of the plug body 230 and the rod body 231. A cover body 236 is installed on one end of the rod body 231 away from the plug body 230, one end of the second pull wire 70 away from the first pull wire 7 passes through the cover body 236, and a clamping block 237 is fixedly connected to the end of the second pull wire 70 passing through the cover body 236. The second pull wire 70 can enter the through hole 234 through the opening 238, and the clamping block 237 can be clamped into the circular groove 233 through the opening 238. The opening 238 includes a first opening connected to the circular groove 233, a second opening connected to the connecting hole 235, and a third opening connected to the through hole 234. The diameter of the first opening is smaller than the diameter of the clamping block 237, so that the clamping block 237 can be clamped into the circular groove 233, and the width of the third opening is smaller than the diameter of the through hole 234. When connecting the second pull wire 70 and the plug, the clamping block 237 on the second pull wire 70 is clamped into the circular groove 233 through the opening 238, the second pull wire 70 enters the through hole 234 through the opening 238, and then the cover body 236 is installed on the through hole 234 to close the through hole 234, completing the connection of the second pull wire 70 and the rod body 231.

[0048] As a further improvement of the present application, the cover 236 is screwed on the rod 231, and the second pull wire 70 passes through and is fixed on the cover 236. In use, the length of the second pull wire 70 can be adjusted by screwing and unscrewing the cover 236.

[0049] Of course, the above description is not a limitation on the present application, and the present application is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present application should also be within the protection scope of the present application.

Claims

1. A horizontal freezer with easy-to-open door, comprising a cabinet body and a door body, characterized in that, The door has a handle on its opening side, and inside the handle is a downward-moving lever driven by a first elastic mechanism. A push rod rocker arm is mounted on one side of the lever, and a pull cable rocker arm is mounted on the other side. The middle of the push rod rocker arm is hinged to the door, and its rear end is mounted on the lever. A push rod that can slide on the door is hinged to the front end of the push rod rocker arm. A pull cable structure is fixed to the front end of the pull cable rocker arm, and its middle part is mounted on the lever. The rear end of the pull cable rocker arm is hinged to the door. A first vent hole connecting to the outside is opened at the top of the door, and a second vent hole connecting to the cabinet is opened at the bottom of the door. The first and second vent holes are connected inside the door. A lever driven by a second elastic mechanism is slidably mounted on the door. A first plug sealing the first vent hole and a second plug sealing the second vent hole driven by a third elastic mechanism; a pull cable structure including a first pull cable connecting a pull cable rocker arm and a second pull cable connecting the first plug and the second plug respectively, the other end of the second pull cable connecting to the first pull cable; the handle has a first oblong hole and a second oblong hole at both ends respectively, a first hinge shaft is fixedly connected to the push rod rocker arm and installed in the first oblong hole, and a second hinge shaft is fixedly connected to the pull cable rocker arm and installed in the second oblong hole; when the handle is in the lower limit position, the first hinge shaft and the second hinge shaft are located on the opposite side of the first oblong hole and the second oblong hole respectively; both the first plug and the second plug include a plug body and a rod. The door body has a conical plug, with a first vent and a second vent being conical holes. A first housing and a second housing are fixed to the door body, respectively covering the first and second vents. The sides of the first and second housings are connected via air ducts. The rod of the first plug is slidably mounted on the first housing. The second elastic mechanism is a first compression spring fitted onto the rod located between the plug and the first housing. The rod of the second plug is slidably mounted on the second housing. The third elastic mechanism is a second compression spring fitted onto the rod located between the plug and the second housing. When opening the door by pulling the handle, the lever on the handle is pulled first. The lever causes the push rod rocker arm and the pull cable rocker arm to swing downwards. The pull cable rocker arm then drives the first... When the pull cord moves upward, the second pull cord tightens, causing the first and second plugs to open the first and second vent holes, connecting the inside and outside of the freezer and balancing the air pressure inside and outside the freezer. At the same time, the push rod rocker arm moves the push rod downward, causing the push rod to partially open the door seal and the cabinet opening, allowing the door seal to move away from the cabinet from the inside. When closing the door, the handle is released, and the handle moves down to its original position under the action of the first elastic mechanism. The push rod rocker arm and the pull cord rocker arm swing upward, the push rod moves upward, the first and second pull cords are released, the first plug closes the first vent hole under the action of the second elastic mechanism, and the second plug closes the second vent hole under the action of the third elastic mechanism, ensuring the door's sealing performance.

2. The horizontal freezer with easy-to-open door as described in claim 1, characterized in that, The rod body has a through hole, the plug body has a circular groove and a connecting hole connecting the through hole and the circular groove, and the sides of the plug body and the rod body have openings connecting the circular groove, the connecting hole and the through hole. A cover is installed on the end of the rod body away from the plug body. The end of the second pull wire away from the first pull wire passes through the cover, and a locking block is fixed to the end of the second pull wire passing through the cover. The second pull wire can enter the through hole through the opening, and the locking block can be locked into the circular groove through the opening.

3. A horizontal freezer with easy-to-open door as described in claim 2, characterized in that, The cover is screwed onto the rod, and the second pull wire passes through the cover and is fixed to the cover.

4. A horizontal freezer with easy-to-open door as described in claim 1, characterized in that, The pull wire structure also includes a housing, with the connection ends of the first pull wire and the second pull wire located inside the housing. A first wire sleeve is fixedly connected to one end of the housing, and the first pull wire slides inside the first wire sleeve. Two second wire sleeves are fixedly connected to the other end of the housing, and the two second pull wires slide inside the two second wire sleeves respectively.

5. A horizontal freezer with easy-to-open door as described in claim 1, characterized in that, The door is equipped with a first sliding sleeve, and the push rod is slidably disposed within the first sliding sleeve.

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