Refrigerator with air pressure balance mechanism

Abstract

The invention relates to the technical field of commercial kitchen refrigerators, in particular to a refrigerator with an air pressure balance mechanism, which comprises a middle vertical rod piece, a top cover is arranged outside the middle vertical rod piece, an upper heat preservation shell is connected to the bottom of the top cover, and a middle vertical cylinder is arranged in the upper heat preservation shell; an upper round cover piece, a vertical sealing assembly and a middle round cover piece are arranged in the middle vertical cylinder, and a first sealing ring piece and a vertical cylinder sleeve are arranged in the vertical sealing assembly. When the main cabinet cover is opened, a switch of the air pressure balance mechanism does not need to be pressed specially, only the handle head part and the lower handle part need to be held and held continuously, the air pressure balance part set can be driven by the adjusting control part set to be opened, operation is completed at a time, natural and smooth, the opening step is greatly simplified, and when the main cabinet cover is closed, operation is convenient. When the handle head piece and the lower grab handle piece are loosened, the spring automatically releases stored force to enable the air pressure balance component set to be closed again, and extra operation is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of commercial kitchen refrigerators, in particular to a refrigerator with an air pressure balancing mechanism. Background Art

[0002] Commercial kitchen freezers are low-temperature storage equipment used in commercial kitchens. They are mainly made of durable materials such as stainless steel and have a variety of door structures and internal layouts.

[0003] After the freezer door is opened, gas exchange occurs inside and outside the freezer compartment, and hot air from the outside enters the freezer compartment. After the door is closed, the hot air in the compartment gradually cools down due to the refrigeration effect, and the pressure in the compartment decreases to form a negative pressure, resulting in a pressure difference between the inside and outside of the freezer, which requires greater force to open the door.

[0004] At present, in the commercial kitchen refrigerators in the prior art, it is necessary to specifically press the switch of the air pressure balance mechanism when opening the main cabinet cover. The operation steps are relatively cumbersome and cannot achieve a natural and smooth operation in one go, which increases the user's operation difficulty and time cost; the spring used for resetting the sealing air pressure balance component group in the existing refrigerator is usually directly placed inside the refrigerator component group, which makes the spring contact with the humid cold air inside the refrigerator for a long time. During long-term use, the spring is easily corroded, resulting in a decrease in elastic performance, and the resetting and sealing function of the air pressure balance component group cannot be reliably achieved. The instability of the spring elastic coefficient will also affect the sealing of the air pressure balance component group, thereby affecting the overall performance of the refrigerator; the current commercial kitchen refrigerator has a relatively simple sealing structure and cannot effectively prevent cold air leakage. Summary of the invention

[0005] In order to overcome the above technical problems, the purpose of the present invention is to provide a refrigerator with an air pressure balance mechanism to solve the problem raised in the above background technology that in the commercial kitchen refrigerators in the prior art, when opening the main cabinet cover, it is necessary to specifically press the switch of the air pressure balance mechanism, and the operation steps are relatively cumbersome.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a refrigerator with an air pressure balancing mechanism, comprising a refrigerator component group, the refrigerator component group comprising a main cabinet body and a main cabinet cover, the main cabinet cover is provided with an air pressure balancing component group and an adjustment control component group, the air pressure balancing component group and the adjustment control component group are used to balance the air pressure inside the main cabinet body, the air pressure balancing component group comprises a middle vertical rod, the outside of the middle vertical rod is provided with a top cover, the bottom of the top cover is connected to an upper insulation shell, the inside of the upper insulation shell is provided with a middle vertical cylinder, the inside of the middle vertical cylinder is provided with an upper round cover, a vertical sealing assembly and a middle round cover, the inside of the vertical sealing assembly is provided with a sealing ring and a vertical cylinder sleeve, one end of the middle vertical rod is connected with a gear condition, the outside of the gear condition is provided with a lower middle shell body, the gear condition is meshed with a gear ring, and the inside of the gear ring is provided with a transfer cylinder member and an inner moving member.

[0007] Preferably: a cross bar is provided at one end of the inner moving part, one end of the cross bar is threadedly connected to an end tube, the end tube is threadedly connected to a sleeve seal, a sealing ring part 2 is provided on the outside of the sleeve seal, a sealing ring part 3, an end round part, a locking sleeve and a limit end are provided on one side of the end tube, the top cover is in sliding contact with the middle vertical rod through a through hole, an air vent is provided on the top of the top cover, the interior of the upper insulation shell is filled with polyurethane foam, one end of the middle vertical cylinder is connected to the top cover by a thread, an upper round cover is clamped between the middle vertical cylinder and the top cover, the other end of the middle vertical cylinder is connected to the lower middle shell by a thread, and a middle round cover is clamped between the middle vertical cylinder and the lower middle shell.

[0008] Preferably: the vertical sealing assembly is provided with two groups, and the two groups of vertical sealing assemblies are distributed on the outside of the middle vertical rod, the sealing ring component 1 is connected to the vertical cylinder sleeve, and the vertical cylinder sleeve is connected to the middle vertical rod through a through hole, one group of sealing ring components 1 contacts the bottom of the upper round cover component, and the other group of sealing ring components 1 contacts the bottom of the middle round cover component, the upper round cover component and the middle round cover component are both provided with air holes, the transfer cylinder component is connected to the inner wall of the lower middle shell body through the bearing frame, the inner moving part, the cross bar component, the end tube, the sleeve seal, the sealing ring component 2, the sealing ring component 3, the end round component, the locking sleeve and the limiting end are all provided with two groups, and the two groups of inner moving parts, the cross bar component, the end tube, the sleeve seal, the sealing ring component 2, the sealing ring component 3, the end round component, the locking sleeve and the limiting end are symmetrically arranged on both sides of the gear ring.

[0009] Preferably: the inner moving part is connected to the transfer cylinder part by a thread, the gear ring is fixedly connected to the transfer cylinder part by a through hole, one end of the cross bar part is connected to the inner moving part by a rotating shaft, and the other end of the cross bar part is connected to the end tube by a thread, the sealing ring part 2 is installed in the lower middle shell body by a groove, the sealing ring part 2 is in contact with the sleeve seal, the sealing ring part 3 is connected to the end tube by a groove, the locking sleeve is connected to the lower middle shell body by a thread, the end round part is clamped between the lower middle shell body and the locking sleeve, the end round part is provided with a vent hole, the sealing ring part 3 is in contact with the end round part, the limiting end is connected to the end tube by a thread, the limiting end is in sliding contact with the end round part through the through hole, the sealing ring part 3 is in contact with the limiting end through the through hole, the bottom of the gear condition is connected with a sliding plate, and the gear condition is in sliding contact with the lower middle shell body through the sliding plate.

[0010] Preferably: the adjustment control component group includes a lower handle member, one side of the lower handle member is connected to an upper handle shell, a handle body member is arranged inside the upper handle shell, a vertical guide column is arranged inside the handle body member, a handle head member is arranged on one side of the handle body member, a pinching rod is arranged inside the handle head member, one end of the pinching rod is connected to a transverse connecting rod, a side of the transverse connecting rod is connected to a spring member 1 and a limiting protrusion, the limiting protrusion contacts a protrusion through a groove, a side protrusion is connected to a side protrusion, the side protrusion is connected to a connecting arm, a ring member is arranged on the outside of the connecting arm, the ring member is connected to an inner cross bar, a spring member 2 is arranged on the outside of the inner cross bar, one end of the inner cross bar is connected to a clamping block member, the clamping block member contacts an insertion rod through a clamping groove, and a fixed outer shell is arranged outside the insertion rod.

[0011] Preferably: the upper handle shell is connected to the upper insulation shell through a bracket, the handle body member is in sliding contact with the upper handle shell through a slide groove, the handle body member is fixedly connected to the middle vertical rod member through a through hole, the vertical guide column is fixedly connected to the upper handle shell through a through hole, the vertical guide column is in sliding contact with the handle body member through the slide groove, a spring is connected between the handle body member and the upper handle shell, one side of the handle body member is rotatably connected to the handle head member, the handle head member is in sliding contact with the pinching rod through the through hole, the spring member is connected between the transverse connecting rod and the handle head member, and the protrusion is connected to the handle body member.

[0012] Preferably: the connecting arm is in contact with the collar part, the inner cross bar, the second spring part, the block part and the insert rod are provided in two groups, and the two groups of inner cross bars, the second spring part, the block part and the insert rod are symmetrically distributed on both sides of the top cover, the inner cross bar is connected between the collar part and the block part, the second spring part is sleeved on the inner cross bar, the second spring part is connected between the fixed outer shell and the block part, and the block part is in sliding contact with the fixed outer shell through a slide groove.

[0013] Preferably: the insertion rod is connected to the bottom of the top cover, the fixed outer shell is in sliding contact with the inner cross bar through the through hole, the insertion rod is in contact with the fixed outer shell through the slot, the fixed outer shell is connected to the main cabinet cover through the groove, and the fixed outer shell is in contact with the top cover and the upper insulation shell through the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When opening the main cabinet cover, there is no need to specifically press the switch of the air pressure balance mechanism. You only need to hold the handle and the lower grip and continue to hold them tightly, so that the adjustment control component group can drive the air pressure balance component group to open. The operation is done in one go, naturally and smoothly, which greatly simplifies the opening steps. When closing the main cabinet cover, release the grip of the handle and the lower grip, and the spring automatically releases the stored force to re-close the air pressure balance component group without additional operation;

[0016] 2. The spring between the handle body and the lower grip is used to reset the air pressure balance component group and seal it. This spring is located outside the air pressure balance component group and is not directly placed inside the refrigerator component group, so that the damp cold air inside the refrigerator component group will not be in contact with it for a long time. In long-term use, the possibility of the spring being corroded is greatly reduced, thereby ensuring that the spring can always maintain good elasticity and performance during long-term use, ensuring that the air pressure balance component group can reliably reset the seal and always maintain a stable elastic coefficient, which can ensure the sealing of the air pressure balance component group;

[0017] 3. The four sets of sealing structures are superimposed on each other, which greatly reduces the possibility of cold air leakage and ensures the sealing inside the main cabinet and the main cabinet cover. Good sealing performance ensures the refrigeration effect of the refrigerator, prolongs the shelf life and validity period of the stored items, and ensures their quality and safety;

[0018] 4. The air pressure balance component group can be easily removed from the main cabinet cover by adjusting the control component group, which is convenient for subsequent operators to disassemble and clean it, thereby improving cleaning efficiency. After cleaning, it is put back into the fixed outer shell, and the plug rod will be inserted into the slot of the fixed outer shell. During the insertion process, the card block will be pushed open, and the spring component 2 will store force and contract. When the plug rod is fully inserted into the fixed outer shell, the spring component 2 releases the stored force, allowing the card block to contact the plug rod through the card slot, thereby locking the plug rod. At this time, the reset installation after cleaning is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the air pressure balance component group and the regulating control component group of the present invention;

[0021] Figure 3It is a schematic diagram of the bottom structure of the air pressure balance component group and the adjustment control component group of the present invention;

[0022] Figure 4 It is a cross-sectional structural schematic diagram of the air pressure balance component group and the regulating control component group of the present invention;

[0023] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at B in the middle;

[0024] Figure 6 It is a partial cross-sectional structural schematic diagram of the air pressure balance component group and the adjustment control component group when the middle vertical rod is pressed down in the present invention;

[0025] Figure 7 It is a structural schematic diagram of the gas pressure balance component assembly of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the overall cross-section of the present invention;

[0027] Fig. 9 For the present invention Figure 8 The structural diagram at A in the middle;

[0028] Fig.10 It is a schematic structural diagram of a partial cross-section of the adjustment control component assembly of the present invention.

[0029] In the figure: 01, refrigerator component group; 11, main cabinet; 12, main cabinet cover; 02, air pressure balance component group; 21, middle vertical rod; 22, top cover; 23, upper insulation shell; 24, middle vertical cylinder; 25, upper round cover; 26, vertical sealing assembly; 261, sealing ring part 1; 262, vertical cylinder sleeve; 27, middle round cover; 28, lower middle shell; 29, gear condition; 210, gear ring; 211, transfer cylinder; 212, inner moving part; 213, cross rod; 214, end cylinder; 215, sleeve sealing; 216, sealing ring part 2; 217, sealing ring component three; 218, end round component; 219, locking sleeve; 220, limit end; 03, adjustment control component group; 31, lower handle component; 32, upper handle shell; 33, handle body component; 34, vertical guide column; 35, handle head component; 36, pinch rod; 37, horizontal connecting rod; 38, spring component one; 39, limit convex rod; 310, convex component; 311, side convex rod; 312, connecting arm; 313, collar component; 314, inner cross rod; 315, spring component two; 316, block component; 317, plug rod; 318, fixed outer shell. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-10 The present invention provides an embodiment: a refrigerator with an air pressure balance mechanism, including a refrigerator component group 01, the refrigerator component group 01 includes a main cabinet body 11 and a main cabinet cover 12, the main cabinet cover 12 is provided with an air pressure balance component group 02 and an adjustment control component group 03, the air pressure balance component group 02 and the adjustment control component group 03 are used to balance the air pressure inside the main cabinet body 11, the air pressure balance component group 02 includes a middle vertical rod 21, and the outside of the middle vertical rod 21 is provided with a top cover 22, the bottom of the top cover 22 is connected to the upper insulation shell 23, the interior of the upper insulation shell 23 is provided with a middle vertical cylinder 24, the interior of the middle vertical cylinder 24 is provided with an upper round cover 25, a vertical sealing assembly 26 and a middle round cover 27, the interior of the vertical sealing assembly 26 is provided with a sealing ring 261 and a vertical cylinder sleeve 262, one end of the middle vertical rod 21 is connected to a gear condition 29, the outer side of the gear condition 29 is provided with a lower middle shell 28, and the gear condition 29 is meshed with a gear ring 210 (such as Figure 7 As shown in FIG. 2 , a transfer cylinder 211 and an inner moving part 212 are arranged inside the gear ring 210 .

[0032] A cross bar 213 is provided at one end of the inner moving part 212, and an end of the cross bar 213 is threadedly connected to an end tube 214, and the end tube 214 is threadedly connected to a sleeve seal 215, and a sealing ring 216 is provided on the outside of the sleeve seal 215. A sealing ring 217, an end round piece 218, a locking sleeve 219 and a limit end 220 are provided on one side of the end tube 214. The top cover 22 is in sliding contact with the middle vertical rod 21 through a through hole, and a vent hole is provided on the top of the top cover 22. The interior of the upper insulation shell 23 is filled with polyurethane foam, one end of the middle vertical cylinder 24 is connected to the top cover 22 through a thread, and an upper round cover 25 is clamped between the middle vertical cylinder 24 and the top cover 22, and the other end of the middle vertical cylinder 24 is connected to the lower middle shell 28 through a thread (such as Figure 5 As shown), a middle circular cover 27 is clamped between the middle vertical cylinder 24 and the lower middle shell 28.

[0033] Two groups of vertical sealing components 26 are provided, and both groups of vertical sealing components 26 are distributed outside the middle vertical rod 21. The sealing ring 261 is connected to the vertical cylinder sleeve 262, and the vertical cylinder sleeve 262 is connected to the middle vertical rod 21 through a through hole. One group of sealing rings 261 contacts the bottom of the upper circular cover 25, and the other group of sealing rings 261 contacts the bottom of the middle circular cover 27. Both the upper circular cover 25 and the middle circular cover 27 are provided with air holes. The transfer cylinder 211 is connected to the inner wall of the lower middle shell 28 through a bearing frame. The inner moving part 212, the cross bar part 213, the end tube 214, the sleeve seal 215, the sealing ring part 216, the sealing ring part 3 217, the end round part 218, the locking sleeve 219 and the limiting end 220 are all provided in two groups, and the two groups of the inner moving parts 212, the cross bar part 213, the end tube 214, the sleeve seal 215, the sealing ring part 216, the sealing ring part 3 217, the end round part 218, the locking sleeve 219 and the limiting end 220 are symmetrically arranged on both sides of the gear ring 210.

[0034] The inner moving member 212 is connected to the transfer cylinder member 211 through a thread, the gear ring 210 is fixedly connected to the transfer cylinder member 211 through a through hole, one end of the cross bar member 213 is connected to the inner moving member 212 through a rotating shaft, and the other end of the cross bar member 213 is connected to the end tube 214 through a thread, and the sealing ring member 216 is installed in the lower middle shell 28 through a groove, and the sealing ring member 216 is in contact with the sleeve sealing member 215, and the sealing ring member 3 217 is connected to the end tube 214 through a groove, and the locking sleeve 219 is connected to the lower middle shell through a thread. The gear condition 29 is connected with the body 28, the end round piece 218 is clamped between the lower middle shell body 28 and the locking sleeve 219, the end round piece 218 is provided with an air vent, the sealing ring piece 217 is in contact with the end round piece 218, the limiting end 220 is connected with the end tube 214 through a thread, the limiting end 220 is in sliding contact with the end round piece 218 through a through hole, the sealing ring piece 217 is in contact with the limiting end 220 through a through hole, and a sliding plate is connected to the bottom of the gear condition 29, and the gear condition 29 is in sliding contact with the lower middle shell body 28 through the sliding plate.

[0035] The adjustment control component group 03 includes a lower handle member 31, one side of the lower handle member 31 is connected to an upper handle shell 32, a handle body member 33 is arranged inside the upper handle shell 32, a vertical guide column 34 is arranged inside the handle body member 33, a handle head member 35 is arranged on one side of the handle body member 33, a pinching rod 36 is arranged inside the handle head member 35, one end of the pinching rod 36 is connected to a transverse connecting rod 37, and the side of the transverse connecting rod 37 is connected to a spring member 38 and a limiting protrusion 39, and the limiting protrusion 39 is connected to the spring member 38 and the limiting protrusion 39 through The groove contacts with a protrusion 310, and a side protrusion rod 311 is connected to one side of the handle head part 35, and the side protrusion rod 311 is connected to a connecting arm 312. A ring part 313 is arranged on the outside of the connecting arm 312, and the ring part 313 is connected to an inner cross bar 314. A spring part 2 315 is arranged on the outside of the inner cross bar 314, and a block part 316 is connected to one end of the inner cross bar 314. The block part 316 contacts with an insertion rod 317 through a slot, and a fixed outer shell 318 is arranged on the outside of the insertion rod 317.

[0036] The upper handle shell 32 is connected to the upper insulation shell 23 through the bracket, the handle body 33 is in sliding contact with the upper handle shell 32 through the slide groove, the handle body 33 is fixedly connected to the middle vertical rod 21 through the through hole, the vertical guide column 34 is fixedly connected to the upper handle shell 32 through the through hole, the vertical guide column 34 is in sliding contact with the handle body 33 through the slide groove, a spring is connected between the handle body 33 and the upper handle shell 32, one side of the handle body 33 is rotatably connected to the handle head 35, the handle head 35 is in sliding contact with the pinching rod 36 through the through hole, the spring part 38 is connected between the horizontal connecting rod 37 and the handle head 35, and the protrusion 310 is connected to the handle body 33.

[0037] The connecting arm 312 is in contact with the collar member 313, and two groups of the inner cross bar 314, the second spring member 315, the block member 316 and the insertion rod 317 are provided, and the two groups of the inner cross bar 314, the second spring member 315, the block member 316 and the insertion rod 317 are symmetrically distributed on both sides of the top cover 22, the inner cross bar 314 is connected between the collar member 313 and the block member 316, the second spring member 315 is sleeved on the inner cross bar 314, the second spring member 315 is connected between the fixed outer shell 318 and the block member 316, and the block member 316 is in sliding contact with the fixed outer shell 318 through a slide groove.

[0038] The insertion rod 317 is connected to the bottom of the top cover 22, the fixed outer shell 318 is in sliding contact with the inner cross bar 314 through the through hole, the insertion rod 317 is in contact with the fixed outer shell 318 through the slot, the fixed outer shell 318 is connected to the main cabinet cover 12 through the groove, and the fixed outer shell 318 contacts the top cover 22 and the upper insulation shell 23 through the groove.

[0039] Working principle: when it is necessary to open the main cabinet 11, directly hold the handle head piece 35 and the lower handle piece 31, and move the handle head piece 35 toward the lower handle piece 31. Since the limiting protrusion 39 is inserted into the protrusion 310 at this time, the position of the handle head piece 35 and the handle body piece 33 is locked and cannot be rotated. The downward movement of the handle head piece 35 drives the handle body piece 33 to slide downward in the slide groove of the lower handle piece 31, and then drives the middle vertical rod piece 21 to move downward. The spring between the handle body piece 33 and the lower handle piece 31 will accumulate force and contract. After opening the air pressure balance component group 02 for ventilation, the air pressure of the main cabinet 11 and the outside is balanced. Continue to hold the lower handle piece 31 and the handle head piece 35, and you can rotate to open the main cabinet cover 12, and then rotate to close the main cabinet When the cover 12 and the main cabinet 11 are opened, the grip of the lower handle 31 and the handle head 35 is released, and the spring between the handle body 33 and the lower handle 31 will release the stored force, thereby allowing the air pressure balance component group 02 to be re-sealed to ensure the airtightness of the main cabinet 11 and the main cabinet cover 12. This design does not require a special air pressure balance mechanism to be pressed as in the prior art when the main cabinet cover 12 needs to be opened. After holding the lower handle 31 and the handle head 35, continue to hold them tightly, so that the handle head 35 and the lower handle 31 can be brought close to each other, allowing the adjustment control component group 03 to drive the air pressure balance component group 02 to open. This design allows the entire operation to be completed in one go, which is more natural and smooth, greatly simplifying the steps for users to open the refrigerator.

[0040] When the middle vertical rod 21 is driven to move downward, the middle vertical rod 21 will drive the two connected vertical sealing components 26 and the gear condition 29 to move downward together, and the sealing ring 261 in the two vertical sealing components 26 will be separated from the contact between the upper circular cover 25 and the middle circular cover 27 respectively, so that the air holes in the upper circular cover 25 and the middle circular cover 27 will not be blocked. When the gear condition 29 moves downward, the gear condition 29 will drive the meshing gear ring 210 to rotate, and the rotation of the gear ring 210 will drive the transfer cylinder 211 to rotate, and the rotation of the transfer cylinder 211 will pass through the thread belt The inner moving member 212 moves inside, and the two inner moving members 212 approach each other, which will drive the cross bar 213, the end tube 214, the sleeve seal 215, the limit end 220 and the sealing ring member 217 to move together, and then the sealing ring member 216 will release the contact with the sleeve seal 215, and the end round member 218 will release the contact with the sealing ring member 217, and the air vent of the end round member 218 will not be blocked. Since the internal space of the main cabinet 11 and the main cabinet cover 12 is in a negative pressure state, the external gas will pass through the top cover 22 (such as Figure 6 As shown), the upper circular cover 25, the middle circular cover 27, the second sealing ring 216, the sleeve sealing member 215, and the end circular member 218 enter the main cabinet 11 and the main cabinet cover 12 to balance the overall air pressure, so that the main cabinet cover 12 can be opened on the main cabinet 11 with little effort;

[0041] In the designed air pressure balance component group 02, the upper circular cover 25 and a group of sealing rings 261 form a group of sealing structures, the middle circular cover 27 and another group of sealing rings 261 form a second group of sealing structures, the second sealing ring 216 and the sleeve sealing member 215 form a third group of sealing structures, and the end circular member 218 and the third sealing ring 217 form a fourth group of sealing structures. The four groups of sealing structures can improve the sealing effect and prevent the cold air inside the main cabinet 11 and the main cabinet cover 12 from leaking to the outside through the air pressure balance component group 02. In this design, multiple groups of sealing structures are superimposed on each other, which greatly reduces the possibility of cold air leakage, and good sealing can extend its shelf life and validity period, ensuring its quality and safety.

[0042] In the designed adjustment control component group 03, when holding the lower handle member 31 and the handle head member 35, the thumb holding the palm can press the pinch rod 36 to make the pinch rod 36 slide in the handle head member 35, and then the pinch rod 36 will drive the horizontal connecting rod 37 and the limiting protrusion 39 to move, the spring member 38 will accumulate force and stretch, and the limiting protrusion 39 will be out of contact with the groove of the protrusion 310, and then the handle head member 35 can be adjusted at one side of the handle body member 33, and the handle head member 35 can be controlled to adjust the angle counterclockwise (such as Fig.10 As shown), the side protrusion rod 311 and the connecting arm 312 will be driven to move together, and the connecting arm 312 will drive the collar member 313 to move away from the insertion rod 317 during the movement (as shown in FIG. Fig.10 As shown in the figure, the spring part 2 315 will accumulate force and contract, the block part 316 will release the contact with the slot of the plug rod 317, and then continue to hold the lower handle part 31 and the handle head part 35 to move up, so that the air pressure balance component group 02 and the plug rod 317 will be separated from the fixed outer shell 318, and the air pressure balance component group 02 will be taken out from the main cabinet cover 12, which is convenient for the staff to disassemble the air pressure balance component group 02. After disassembly, the inside of the air pressure balance component group 02 can be cleaned. This design improves the air pressure balance The cleaning efficiency of the balance component group 02 is measured. After cleaning, it is put back into the fixed outer shell 318, and the insertion rod 317 is inserted into the slot of the fixed outer shell 318. During the insertion process, the block member 316 is pushed open, and the spring member 315 accumulates force and contracts. When the insertion rod 317 is fully inserted into the fixed outer shell 318, the spring member 315 releases the accumulated force, allowing the block member 316 to contact the insertion rod 317 through the slot, thereby locking the insertion rod 317. At this time, the reset installation after cleaning is completed.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A refrigerator with an air pressure balancing mechanism, comprising a refrigerator component set (01), wherein the refrigerator component set (01) comprises a main cabinet body (11) and a main cabinet cover (12), characterized in that: The main cabinet cover (12) is provided with an air pressure balancing component group (02) and an adjusting control component group (03), the air pressure balancing component group (02) and the adjusting control component group (03) are used to balance the air pressure inside the main cabinet (11), the air pressure balancing component group (02) comprises a middle vertical rod (21), the outside of the middle vertical rod (21) is provided with a top cover (22), the bottom of the top cover (22) is connected to an upper insulation shell (23), the inside of the upper insulation shell (23) is provided with a middle vertical cylinder (24), the middle vertical cylinder (24) An upper circular cover (25), a vertical sealing assembly (26) and a middle circular cover (27) are arranged inside the cylinder (24); a sealing ring (261) and a vertical cylinder sleeve (262) are arranged inside the vertical sealing assembly (26); one end of the middle vertical rod (21) is connected to a gear condition (29); a lower middle shell (28) is arranged outside the gear condition (29); the gear condition (29) is meshed with a gear ring (210); a middle transfer cylinder (211) and an inner moving part (212) are arranged inside the gear ring (210).

2. A refrigerator with an air pressure balancing mechanism according to claim 1, characterized in that: A cross bar (213) is provided at one end of the inner moving part (212), and an end of the cross bar (213) is threadedly connected to an end tube (214), and the end tube (214) is threadedly connected to a sleeve seal (215), and a second sealing ring (216) is provided on the outside of the sleeve seal (215), and a third sealing ring (217), an end round part (218), a locking sleeve (219) and a limit end (220) are provided on one side of the end tube (214), and the top cover (22) is connected to the end tube (214) by a thread. The hole is in sliding contact with the middle vertical rod (21), the top of the top cover (22) is provided with a ventilation hole, the interior of the upper insulation shell (23) is filled with polyurethane foam, one end of the middle vertical cylinder (24) is connected to the top cover (22) by a thread, an upper round cover (25) is clamped between the middle vertical cylinder (24) and the top cover (22), the other end of the middle vertical cylinder (24) is connected to the lower middle shell (28) by a thread, and a middle round cover (27) is clamped between the middle vertical cylinder (24) and the lower middle shell (28).

3. A refrigerator with an air pressure balancing mechanism according to claim 2, characterized in that: The vertical sealing components (26) are provided in two groups, and the two groups of vertical sealing components (26) are distributed outside the middle vertical rod (21). The sealing ring component (261) is connected to the vertical cylinder sleeve (262), and the vertical cylinder sleeve (262) is connected to the middle vertical rod (21) through a through hole. The sealing ring component (261) of one group contacts the bottom of the upper circular cover component (25), and the sealing ring component (261) of the other group contacts the bottom of the middle circular cover component (27). The upper circular cover component (25) and the middle circular cover component (27) are both provided with air holes. The middle rotating cylinder component (211) is connected to the inner wall of the lower middle shell (28) through the bearing frame. The inner moving part (212), the cross bar (213), the end tube (214), the sleeve seal (215), the second sealing ring part (216), the third sealing ring part (217), the end round part (218), the locking sleeve (219) and the limiting end (220) are all provided in two groups, and the two groups of the inner moving part (212), the cross bar (213), the end tube (214), the sleeve seal (215), the second sealing ring part (216), the third sealing ring part (217), the end round part (218), the locking sleeve (219) and the limiting end (220) are symmetrically arranged on both sides of the gear ring (210).

4. The refrigerator with an air pressure balancing mechanism according to claim 2, characterized in that: The inner moving member (212) is connected to the rotating cylinder member (211) through a thread, the gear ring (210) is fixedly connected to the rotating cylinder member (211) through a through hole, one end of the cross bar member (213) is connected to the inner moving member (212) through a rotating shaft, the other end of the cross bar member (213) is connected to the end tube (214) through a thread, the second sealing ring member (216) is installed in the lower middle shell (28) through a groove, the second sealing ring member (216) is in contact with the sleeve sealing member (215), the third sealing ring member (217) is connected to the end tube (214) through a groove, and the locking sleeve (219) is connected to the lower middle shell through a thread. The lower middle shell (28) is connected with a locking sleeve (219), a terminal round piece (218) is clamped between the lower middle shell (28) and the locking sleeve (219), a ventilation hole is provided on the terminal round piece (218), the sealing ring piece (217) is in contact with the terminal round piece (218), the limiting terminal (220) is connected with the terminal tube (214) through a thread, the limiting terminal (220) is in sliding contact with the terminal round piece (218) through a through hole, the sealing ring piece (217) is in contact with the limiting terminal (220) through a through hole, the bottom of the gear condition (29) is connected with a sliding plate, and the gear condition (29) is in sliding contact with the lower middle shell (28) through the sliding plate.

5. The refrigerator with an air pressure balancing mechanism according to claim 1, characterized in that: The adjustment control component group (03) comprises a lower grip member (31), one side of the lower grip member (31) is connected to an upper grip shell (32), a handle body member (33) is arranged inside the upper grip shell (32), a vertical guide column (34) is arranged inside the handle body member (33), a handle head member (35) is arranged on one side of the handle body member (33), a pinching rod (36) is arranged inside the handle head member (35), one end of the pinching rod (36) is connected to a transverse connecting rod (37), a side of the transverse connecting rod (37) is connected to a spring member 1 (38) and a limiting protrusion (39), and the limiting protrusion (39) A convex part (310) is contacted through a groove, one side of the handle head part (35) is connected to a side convex rod (311), the side convex rod (311) is connected to a connecting arm (312), a collar part (313) is arranged outside the connecting arm (312), the collar part (313) is connected to an inner cross bar (314), a spring part 2 (315) is arranged outside the inner cross bar (314), one end of the inner cross bar (314) is connected to a clamping block part (316), the clamping block part (316) is contacted with an insertion rod (317) through a clamping groove, and a fixed outer shell (318) is arranged outside the insertion rod (317).

6. The refrigerator with an air pressure balancing mechanism according to claim 5, characterized in that: The upper handle shell (32) is connected to the upper heat-insulating shell (23) through a bracket, the handle body (33) is in sliding contact with the upper handle shell (32) through a sliding groove, the handle body (33) is fixedly connected to the middle vertical rod (21) through a through hole, the vertical guide column (34) is fixedly connected to the upper handle shell (32) through a through hole, the vertical guide column (34) is in sliding contact with the handle body (33) through the sliding groove, a spring is connected between the handle body (33) and the upper handle shell (32), one side of the handle body (33) is rotatably connected to the handle head (35), the handle head (35) is in sliding contact with the pinching rod (36) through the through hole, the spring member (38) is connected between the transverse connecting rod (37) and the handle head (35), and the protrusion (310) is connected to the handle body (33).

7. The refrigerator with an air pressure balance mechanism according to claim 5, characterized in that: The connecting arm (312) is in contact with the collar member (313), and the inner cross bar (314), the second spring member (315), the block member (316) and the insert rod (317) are provided in two groups, and the two groups of the inner cross bar (314), the second spring member (315), the block member (316) and the insert rod (317) are symmetrically distributed on both sides of the top cover (22), the inner cross bar (314) is connected between the collar member (313) and the block member (316), the second spring member (315) is sleeved on the inner cross bar (314), the second spring member (315) is connected between the fixed outer shell (318) and the block member (316), and the block member (316) is in sliding contact with the fixed outer shell (318) through a sliding groove.

8. The refrigerator with an air pressure balancing mechanism according to claim 5, characterized in that: The insertion rod (317) is connected to the bottom of the top cover (22), the fixed outer shell (318) is in sliding contact with the inner cross bar (314) through the through hole, the insertion rod (317) is in contact with the fixed outer shell (318) through the slot, the fixed outer shell (318) is connected to the main cabinet cover (12) through the groove, and the fixed outer shell (318) is in contact with the top cover (22) and the upper insulation shell (23) through the groove.

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