Door seal for sealing rotating-beam-free refrigerator and production process of door seal

Abstract

The invention belongs to the technical field of refrigerator sealing, and particularly discloses a door seal for sealing a rotating-beam-free refrigerator, the door seal comprises an auxiliary section rubber sleeve and a main section rubber sleeve, the auxiliary section rubber sleeve comprises an auxiliary section rubber sleeve body and two blocking pieces, and the two blocking pieces are arranged at the upper end and the lower end of the auxiliary section rubber sleeve body respectively; the main section rubber sleeve comprises a vertical rubber sleeve and transverse rubber sleeves arranged at the two ends of the vertical rubber sleeve, and the ends, away from the vertical rubber sleeve, of the transverse rubber sleeves are connected to the auxiliary section rubber sleeve body. According to the door seal for sealing the rotating-beam-free refrigerator and the production process of the door seal, the production process is simple, and the prepared door seal for sealing the rotating-beam-free refrigerator is good in sealing effect.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigerator sealing, and in particular relates to a door seal for refrigerator sealing without a rotating beam and a production process thereof. Background Art

[0002] In some refrigerator products, in order to expand the internal capacity, the partition in the middle of the double doors is eliminated and replaced with a flip beam. The sheet metal on the surface of the flip beam seals with the magnetic strips on both sides of the door to form a relatively closed space between the box and the door, so as to achieve the purpose of preserving cold air.

[0003] However, the use of a flip beam will affect the feel of opening and closing the refrigerator door, reducing the customer experience. In addition, the flip beam has a built-in anti-condensation tube to prevent condensation, which increases the energy consumption of the refrigerator. The non-rotating beam refrigerator improves the user experience without affecting the refrigerator capacity. Some refrigerators have cancelled the flip beam structure. Therefore, the special door seal used in the non-rotating beam refrigerator needs to be able to achieve a sealing effect without a flip beam. The middle part of the door seal needs to fit tightly together to form a sealed space. However, the production process of this special refrigerator door seal is relatively complicated, and ordinary sealing technology cannot achieve the purpose of sealing well when used on a non-rotating beam refrigerator. Summary of the invention

[0004] The purpose of the present invention is to overcome the above problems existing in the prior art and provide a door seal for sealing a refrigerator without a rotating beam and a production process thereof. The production process is simple and the prepared door seal for sealing a refrigerator without a rotating beam has good sealing effect.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, the present invention provides a door seal for sealing a refrigerator without a rotating beam, comprising:

[0007] A secondary cross-section rubber sleeve, the secondary cross-section rubber sleeve comprising a secondary cross-section rubber sleeve body and two blocking pieces, the two blocking pieces are respectively arranged at the upper end and the lower end of the secondary cross-section rubber sleeve body;

[0008] The main section rubber sleeve comprises a vertical rubber sleeve and transverse rubber sleeves arranged at both ends of the vertical rubber sleeve, and one end of the transverse rubber sleeve away from the vertical rubber sleeve is connected to the secondary section rubber sleeve body.

[0009] Furthermore, one end of the transverse rubber sleeve away from the vertical rubber sleeve is a plane.

[0010] Furthermore, one end of the transverse rubber sleeve away from the vertical rubber sleeve is fixed to the secondary cross-section rubber sleeve body by butt welding.

[0011] Furthermore, the upper and lower ends of the vertical rubber sleeve are both provided with an inclined surface 1;

[0012] A second slope is provided at one end of the transverse rubber sleeve away from the secondary cross-section rubber sleeve, and the first slope is in contact with the second slope.

[0013] Furthermore, the first bevel and the second bevel are connected and fixed by fillet welding.

[0014] Furthermore, the two blocking pieces are respectively fixed to the upper end and the lower end of the secondary cross-section rubber sleeve body by blocking welding.

[0015] In a second aspect, the present invention provides a production process for a door seal for a refrigerator without a rotating beam, the production process comprising the following steps:

[0016] Step a, extruding the raw material of the door seal for the refrigerator without a rotating beam through an extruder to prepare a plurality of rubber sleeves, cutting the plurality of rubber sleeves, and then magnetizing the cut rubber sleeves, and after the magnetization is completed, trimming the magnetized rubber sleeves to prepare a secondary cross-section rubber sleeve body, a vertical rubber sleeve, and a horizontal rubber sleeve;

[0017] Step b, first fix two plugging pieces to the two ends of the secondary cross-section rubber sleeve body by welding to prepare the secondary cross-section rubber sleeve, then fix two transverse rubber sleeves to the upper end and the lower end of the side of the secondary cross-section rubber sleeve body by welding respectively, and finally fix the vertical rubber sleeve between the two transverse rubber sleeves by welding to prepare the door seal for sealing the refrigerator without a rotating beam;

[0018] Step c, hanging the prepared door seal for the refrigerator without rotating beam on a rack.

[0019] The production process of a door seal for sealing a refrigerator without a rotating beam according to claim is characterized in that in step b, the two sealing sheets are fixed to the two ends of the secondary cross-section rubber sleeve body by welding, specifically comprising the following steps:

[0020] S11, preparing a plugging mold, wherein the plugging mold includes a right plugging mold and a left plugging mold, the right plugging mold is provided with two plugging cavities, and the left plugging mold is provided with a plugging piece installation area;

[0021] S12, placing the two ends of the secondary cross-section rubber sleeve body into the two plugging cavities on the right plugging mold respectively, and then placing the plugging piece into the plugging piece installation area on the left plugging mold, and the plugging piece is adsorbed in the plugging piece installation area by a vacuum device;

[0022] S13, heat and melt the two ends of the sealing piece and the secondary section rubber sleeve body by heating the iron, then close the right sealing mold and the left sealing mold, so that the two ends of the secondary section rubber sleeve body are respectively welded to the two sealing pieces, complete the sealing welding, and prepare the secondary section rubber sleeve.

[0023] Furthermore, in step b, two transverse rubber sleeves are fixed to the upper end and the lower end of the side surface of the secondary cross-section rubber sleeve body by welding, which specifically includes the following steps:

[0024] S21, preparing a welding mold 1, wherein the welding mold 1 includes a main section welding mold 1 and a secondary section welding mold 1;

[0025] S22, two transverse rubber sleeves are placed in the main section welding mold 1, and then the secondary section rubber sleeve is inserted into the secondary section welding mold 1, and the ends with the planes on the two transverse rubber sleeves are heated and melted by heating iron, and the sides of the secondary section rubber sleeves are heated and melted;

[0026] S23. After the heated iron is melted, the main section welding mold 1 and the secondary section welding mold 1 are closed, so that the two horizontal rubber sleeves are respectively welded to the side surfaces of the secondary section rubber sleeves to complete the butt welding.

[0027] Furthermore, in step b, the vertical rubber sleeve is fixed between the two horizontal rubber sleeves by welding, which specifically includes the following steps:

[0028] S31, preparing multiple welding molds 2;

[0029] S32, inserting the vertical rubber sleeve and the horizontal rubber sleeve into the second welding mold respectively, and heating and melting the two ends of the vertical rubber sleeve provided with the first inclined surface and the one end of the horizontal rubber sleeve provided with the second inclined surface respectively by heating iron;

[0030] S33. After the heated iron is melted, the mold is closed to weld the two ends of the vertical rubber sleeve with the inclined surface 1 to the ends of the two horizontal rubber sleeves with the inclined surface 2, respectively, to complete the corner welding, and prepare a door seal for sealing a refrigerator without a rotating beam.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention provides a door seal for sealing a refrigerator without a rotating beam, which has a certain strength and can ensure a good sealing effect during frequent door opening and closing, and is not prone to deformation.

[0033] 2. The present invention also provides a production process for a door seal for sealing a refrigerator without a rotating beam. The process flow specifically includes the steps of extrusion, cutting, magnetization, trimming, welding and hanging. The production process has made adjustments to the welding steps, specifically including sealing welding, butt welding and corner welding. The door seal for sealing a refrigerator without a rotating beam prepared by this production process not only has good strength, but also has good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0035] Figure 1 It is a schematic structural diagram of a door seal for sealing a refrigerator without a rotating beam provided by the present invention;

[0036] Figure 2 It is a schematic diagram of the combined structure of the door seal for sealing a refrigerator without a rotating beam provided by the present invention;

[0037] Figure 3 It is a structural schematic diagram of the secondary cross-section rubber sleeve provided by the present invention;

[0038] Figure 4 It is a structural schematic diagram of the main cross-section rubber sleeve provided by the present invention;

[0039] Figure 5 The present invention is a production process flow chart of a door seal for sealing a refrigerator without a rotating beam.

[0040] Among them, the figures are marked as: 1, secondary section rubber sleeve; 2, main section rubber sleeve; 11, secondary section rubber sleeve body; 12, sealing piece; 21, vertical rubber sleeve; 22, horizontal rubber sleeve; 23, inclined plane one; 24, inclined plane two. DETAILED DESCRIPTION

[0041] 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.

[0042] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In some refrigerator products, in order to expand the internal capacity, the partition in the middle of the double doors is eliminated and replaced with a flip beam. The sheet metal on the surface of the flip beam seals with the magnetic strips on both sides of the door to form a relatively closed space between the box and the door, so as to achieve the purpose of preserving cold air.

[0044] However, the use of a flip beam will affect the feel of opening and closing the refrigerator door, reducing the customer experience. In addition, in order to prevent condensation, the flip beam has a built-in anti-condensation tube, which increases the energy consumption of the refrigerator. The non-rotating beam refrigerator improves the user experience without affecting the refrigerator capacity. Some refrigerators have cancelled the flip beam structure. Therefore, the special door seal used in the non-rotating beam refrigerator needs to be able to achieve a sealing effect without a flip beam. The middle part of the door seal needs to be able to fit tightly together to form a sealed space; however, the production process of this special refrigerator door seal is relatively complicated, and ordinary sealing technology cannot achieve the purpose of sealing well when used on a non-rotating beam refrigerator. Specifically, the production process of the door seal is complicated. Not only does it require the use of special equipment for production, the investment cost is high, and the scope of application is narrow; moreover, it is generally composed of four rubber sleeves, each of which has a 45° bevel surface at both ends, and the adjacent two rubber sleeves are welded by the 45° bevel surface. This door seal has a suction surface parallel to the door body. When the left and right doors of the refrigerator are closed, the door seal on the left door and the door seal on the right door cannot achieve the function of mutual suction and self-closing, which leads to the refrigerator not being able to achieve a good sealing effect.

[0045] Therefore, the present invention provides a door seal for sealing a refrigerator without a rotating beam and a production process thereof, wherein the production process is simple and the prepared door seal for sealing a refrigerator without a rotating beam has a good sealing effect. The details are as follows:

[0046] First, as Figures 1 to 4 As shown, the present invention provides a door seal for sealing a refrigerator without a rotating beam, comprising:

[0047] The secondary cross-section rubber sleeve 1 comprises a secondary cross-section rubber sleeve body 11 and two blocking pieces 12, wherein the two blocking pieces 12 are respectively arranged at the upper end and the lower end of the secondary cross-section rubber sleeve body 11;

[0048] The main section rubber sleeve 2 includes a vertical rubber sleeve 21 and transverse rubber sleeves 22 provided at both ends of the vertical rubber sleeve 21, and one end of the transverse rubber sleeve 22 away from the vertical rubber sleeve 21 is connected to the secondary section rubber sleeve body 11;

[0049] In the door seal for sealing a refrigerator without a rotating beam provided by the present invention, the door seal is composed of a secondary cross-section rubber sleeve 1 and a main cross-section rubber sleeve 2. Specifically, the door seal is formed by welding the secondary cross-section rubber sleeve 1 and the main cross-section rubber sleeve 2;

[0050] In a non-rotating beam refrigerator, two non-rotating beam refrigerator sealing door seals provided by the present invention are required. Specifically, the two non-rotating beam refrigerator sealing door seals are respectively installed on the left door and the right door of the non-rotating beam refrigerator. No turning beam is provided. Figure 1 and Figure 2As shown, they are two door seals installed on the left door and right door of a refrigerator without a rotating beam; more specifically, during installation, the rear side surface of the vertical rubber sleeve 21, the rear side surfaces of the two horizontal rubber sleeves 22, and the rear side surface of the secondary cross-section rubber sleeve 1 are all installed on the refrigerator door body, and the refrigerator door is in an open state, and the door seals on the left door and the right door are symmetrically installed. When the door is closed, the suction surfaces of the secondary cross-section rubber sleeves 1 on the left door and the right door are in contact with each other. Specifically, since the secondary cross-section rubber sleeve 1 is provided in the door seal, its suction surface (such as Figure 1 As shown, the left side of the secondary cross-section rubber sleeve 1 is the suction surface) and is set to be perpendicular to the refrigerator door body. Therefore, when the left door and the right door of the refrigerator are closed, the side surfaces of the secondary cross-section rubber sleeves 1 on the left door and the right door fit together, and the left and right anisotropic magnetic strips are attracted to each other to achieve suction, thereby achieving the function of the door seal on the left door and the door seal on the right door to attract each other and close themselves, thereby achieving a sealing effect; in this installation method, the suction surface of the vertical rubber sleeve 21 (as shown Figure 1 As shown, the front side of the vertical rubber sleeve 21 is the suction surface) and the suction surfaces of the two horizontal rubber sleeves 22 (as shown Figure 1 As shown, the front side surface of the vertical rubber sleeve 21 is a suction surface). When the left door and the right door of the refrigerator are closed, it is parallel to the refrigerator door body, and the suction surface is sucked onto the refrigerator body to achieve a sealing effect.

[0051] like Figures 1 to 4 As shown, one end of the transverse rubber sleeve 22 away from the vertical rubber sleeve 21 is a plane; specifically, one end of the transverse rubber sleeve 22 away from the vertical rubber sleeve 21 is fixed to the secondary cross-section rubber sleeve body 11 by butt welding;

[0052] By butt welding, after the transverse rubber sleeve 22 is connected to the secondary cross-section rubber sleeve body 11, the sealing of the connecting end between the transverse rubber sleeve 22 and the secondary cross-section rubber sleeve body 11 is ensured, while simplifying the welding process and facilitating the welding of the transverse rubber sleeve 22 to the secondary cross-section rubber sleeve body 11.

[0053] like Figures 1 to 4 As shown, the upper and lower ends of the vertical rubber sleeve 21 are both provided with an inclined surface 23;

[0054] The end of the transverse rubber sleeve 22 away from the secondary cross-section rubber sleeve 1 is provided with a second inclined surface 24, and the first inclined surface 23 is fitted with the second inclined surface 24; specifically, the first inclined surface 23 and the second inclined surface 24 are connected and fixed by fillet welding;

[0055] By adopting the method of corner welding, the inclined surface 1 23 on the vertical rubber sleeve 21 and the inclined surface 24 on the horizontal rubber sleeve 22 are adaptively connected, so that the vertical rubber sleeve 21 and the horizontal rubber sleeve 22 are connected and fixed in this way, which can ensure the sealing effect and strength of the corner of the door seal for the refrigerator without rotating beam.

[0056] like Figures 1 to 4As shown, the two blocking pieces 12 are respectively fixed to the upper end and the lower end of the secondary cross-section rubber sleeve body 11 by blocking welding; the blocking pieces 12 are respectively welded to the upper end and the lower end of the secondary cross-section rubber sleeve body 11, thereby preparing the secondary cross-section rubber sleeve 1;

[0057] Since the sealing piece 12 is used to seal the two ends of the sub-section rubber sleeve body 11, the sealing performance of the sub-section rubber sleeve body 11 can be guaranteed; in addition, the sealing piece 12 is used to seal the two ends of the sub-section rubber sleeve body 11, which can also enhance the strength of the sub-section rubber sleeve body 11 and prevent it from deformation during long-term use.

[0058] Second, as Figures 1 to 5 As shown, the present invention also provides a production process for a door seal for a refrigerator without a rotating beam, and the production process comprises the following steps:

[0059] Step a, extruding the raw material of the door seal for the refrigerator without a rotating beam through an extruder to prepare a plurality of rubber sleeves, cutting the plurality of rubber sleeves according to the actual required size, performing a magnetizing operation on the cut rubber sleeves after the cutting is completed, and trimming the plurality of magnetizing rubber sleeves after the magnetizing is completed to prepare a secondary cross-section rubber sleeve body 11, a vertical rubber sleeve 21 and a horizontal rubber sleeve 22 respectively;

[0060] Step b, fix two blocking pieces 12 to the two ends of the secondary cross-section rubber sleeve body 11 by blocking welding to prepare the secondary cross-section rubber sleeve 1; fix two transverse rubber sleeves 22 to the upper end and the lower end of the side of the secondary cross-section rubber sleeve body 11 by butt welding respectively; fix the vertical rubber sleeve 21 between the two transverse rubber sleeves 22 by fillet welding to prepare a door seal for sealing a refrigerator without a rotating beam;

[0061] Specifically, the two blocking pieces 12 are fixed to the two ends of the secondary cross-section rubber sleeve body 11 by blocking welding to prepare the secondary cross-section rubber sleeve 1. The specific operation flow is as follows:

[0062] S11, preparing a plugging mold, wherein the plugging mold includes a right plugging mold and a left plugging mold, the right plugging mold is provided with two plugging cavities, and the left plugging mold is provided with a plugging piece installation area;

[0063] S12, placing the two ends of the secondary cross-section rubber sleeve body 11 into the two blocking cavities on the right blocking mold respectively, and then placing the blocking piece 12 into the blocking piece installation area on the left blocking mold, and the blocking piece 12 is adsorbed in the blocking piece installation area by a vacuum device;

[0064] S13, heating and melting the blocking piece 12 and the two ends of the secondary cross-section rubber sleeve body 11 by heating iron, and then closing the right blocking mold and the left blocking mold, so that the two ends of the secondary cross-section rubber sleeve body 11 are respectively welded with the two blocking pieces 12, completing the blocking welding, and preparing the secondary cross-section rubber sleeve 1;

[0065] During the plugging welding process, since the two ends of the secondary cross-section rubber sleeve body 11 are flush, and the welding position with the main cross-section rubber sleeve 2 is on the side rather than at the top, the top of the secondary cross-section rubber sleeve body 11 needs to be blocked, which is used to fix the magnetic strip in the rubber sleeve and also plays a sealing role; therefore, in the specific implementation process, the two ends of the secondary cross-section rubber sleeve body 11 are first placed in the corresponding cavities of the right-side plugging mold (specifically, the two cavities on the plugging mold are mirror images of each other, and only one pair of plugging molds can be used to block the two ends of the secondary cross-section rubber sleeve body 11), and then the sealing piece 12 is placed in the corresponding position on the left-side plugging mold (at this time, the sealing piece 12 is vacuumed), and then welding is started, and the heating iron is used to heat and melt the sealing piece 12 and the secondary cross-section rubber sleeve body 11, and then the left and right sides of the plugging mold are closed (that is, the right side plugging mold and the left side plugging mold are closed), and the secondary cross-section rubber sleeve body 11 and the sealing piece 12 are welded together to complete the plugging welding;

[0066] Specifically, in the process of fixing the two transverse rubber sleeves 22 to the upper end and the lower end of the side surface of the secondary cross-section rubber sleeve body 11 by butt welding, the specific operation process is as follows:

[0067] S21, preparing a welding mold 1, wherein the welding mold 1 includes a main section welding mold 1 and a secondary section welding mold 1;

[0068] S22, two transverse rubber sleeves 22 are placed in the main section welding mold 1, and then the secondary section rubber sleeve 1 is inserted into the secondary section welding mold 1, and the ends with planes on the two transverse rubber sleeves 22 are heated and melted by heating iron, and the sides of the secondary section rubber sleeve 1 are heated and melted;

[0069] S23, after the heated iron is melted, the main section welding mold 1 and the secondary section welding mold 1 are closed, so that the two transverse rubber sleeves 22 are respectively welded to the side surfaces of the secondary section rubber sleeve 1, and the butt welding is completed;

[0070] During the butt welding process, since the butt welding of the door seal for sealing the refrigerator without a rotating beam is different from the 45° angle welding of the ordinary door seal, the welding of the door seal for sealing the refrigerator without a rotating beam requires that the side of the secondary cross-section rubber sleeve 1 (i.e. the side of the secondary cross-section rubber sleeve body 11) and the end of the transverse rubber sleeve 22 are welded together at a 90° angle (i.e. the end of the transverse rubber sleeve 22 that is a plane) to ensure that after the subsequent installation of the door seal for sealing the refrigerator without a rotating beam, the secondary cross-section rubber sleeve body 11 and the transverse rubber sleeve 22 can be adsorbed together; specifically, the transverse rubber sleeve 22 is inserted into the main cross-section welding mold one, the mold insertion amount is adjusted and fixed, the secondary cross-section rubber sleeve body 11 is inserted into the corresponding secondary cross-section welding mold one, and then welding is started, the heating iron heats and melts the port to be welded on the transverse rubber sleeve 22 and the area to be welded on the side of the secondary cross-section rubber sleeve body 11, and then the left and right molds are closed, so that the port of the transverse rubber sleeve 22 and the side of the secondary cross-section rubber sleeve body 11 are welded together to complete the butt welding;

[0071] Specifically, the vertical rubber sleeve 21 is fixed between the two horizontal rubber sleeves 22 by corner welding to prepare a door seal for a refrigerator without a rotating beam. The specific operation process is as follows:

[0072] S31, preparing multiple welding molds 2;

[0073] S32, insert the vertical rubber sleeve 21 and the horizontal rubber sleeve 22 into the second welding mold respectively, and heat and melt the two ends of the vertical rubber sleeve 21 with the first inclined surface 23 and one end of the horizontal rubber sleeve 22 with the second inclined surface 24 respectively by heating iron;

[0074] S33, after the heated iron is melted, the mold is closed, so that the two ends of the vertical rubber sleeve 21 with the inclined surface 1 23 are respectively welded together with one end of the two transverse rubber sleeves 22 with the inclined surface 24, and the corner welding is completed to prepare a door seal for sealing a refrigerator without a rotating beam;

[0075] During the corner welding process, the corner welding of the door seal for the refrigerator without a rotating beam is to insert the vertical rubber sleeve 21 and the horizontal rubber sleeve 22 into the welding mold 2 respectively, and after the heated iron is melted, the left and right molds are welded together to complete the last process of welding the door seal for the refrigerator without a rotating beam;

[0076] Step c: Hanging the prepared door seal for the refrigerator without rotating beam on a rack to ensure that its shape is stable and convenient for subsequent operations.

[0077] The present invention provides a door seal for sealing a refrigerator without a rotating beam and a production process thereof. The production process includes processes such as extrusion, cutting, magnetization, trimming, and welding. The welding process is optimized and adjusted to make the production process more practical for the actual production of special refrigerator door seals (i.e., door seals for sealing refrigerators without a rotating beam). The welding process of the door seal for sealing refrigerators without a rotating beam includes plugging welding, butt welding, and final fillet welding. Compared with the welding of ordinary door seals, the door seal has two more welding processes, namely, plugging and butt welding. The production process is specifically used for door seals for sealing refrigerators without a rotating beam.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A door seal for sealing a refrigerator without a rotating beam, characterized in that: include: A secondary cross-section rubber sleeve (1), the secondary cross-section rubber sleeve (1) comprising a secondary cross-section rubber sleeve body (11) and two blocking pieces (12), the two blocking pieces (12) being respectively arranged at the upper end and the lower end of the secondary cross-section rubber sleeve body (11); A main section rubber sleeve (2), the main section rubber sleeve (2) comprising a vertical rubber sleeve (21) and transverse rubber sleeves (22) arranged at both ends of the vertical rubber sleeve (21), and one end of the transverse rubber sleeve (22) away from the vertical rubber sleeve (21) is connected to the secondary section rubber sleeve body (11).

2. A door seal for sealing a refrigerator without a rotating beam according to claim 1, characterized in that: One end of the transverse rubber sleeve (22) away from the vertical rubber sleeve (21) is a plane.

3. The door seal for sealing a refrigerator without a rotating beam according to claim 1, characterized in that: One end of the transverse rubber sleeve (22) away from the vertical rubber sleeve (21) is fixed to the secondary cross-section rubber sleeve body (11) by butt welding.

4. The door seal for sealing a refrigerator without a rotating beam according to claim 1, characterized in that: The upper and lower ends of the vertical rubber sleeve (21) are both provided with an inclined surface (23); A second inclined surface (24) is provided at one end of the transverse rubber sleeve (22) away from the secondary cross-section rubber sleeve (1), and the first inclined surface (23) is in contact with the second inclined surface (24).

5. A door seal for sealing a refrigerator without a rotating beam according to claim 4, characterized in that: The first bevel (23) and the second bevel (24) are connected and fixed by corner welding.

6. The door seal for sealing a refrigerator without a rotating beam according to claim 1, characterized in that: The two blocking pieces (12) are respectively fixed to the upper end and the lower end of the secondary cross-section rubber sleeve body (11) by blocking welding.

7. A production process for a door seal for a refrigerator without a rotating beam as claimed in any one of claims 1 to 6, characterized in that: The production process includes the following steps: Step a, extruding the raw material of the door seal for the refrigerator without a rotating beam through an extruder to prepare a plurality of rubber sleeves, cutting the plurality of rubber sleeves, and then magnetizing the cut rubber sleeves. After the magnetization is completed, trimming the magnetized rubber sleeves to prepare a secondary cross-section rubber sleeve body (11), a vertical rubber sleeve (21) and a horizontal rubber sleeve (22); Step b, first fix two blocking pieces (12) to the two ends of the secondary cross-section rubber sleeve body (11) by welding to prepare the secondary cross-section rubber sleeve (1), then fix two transverse rubber sleeves (22) to the upper end and the lower end of the side of the secondary cross-section rubber sleeve body (11) by welding respectively, and finally fix the vertical rubber sleeve (21) between the two transverse rubber sleeves (22) by welding to prepare a door seal for sealing a refrigerator without a rotating beam; Step c, hanging the prepared door seal for the refrigerator without rotating beam on a rack.

8. The production process of a door seal for refrigerators without a rotating beam according to claim 7, characterized in that: In step b, two blocking pieces (12) are fixed to the two ends of the secondary cross-section rubber sleeve body (11) by welding, which specifically includes the following steps: S11, preparing a plugging mold, wherein the plugging mold includes a right plugging mold and a left plugging mold, the right plugging mold is provided with two plugging cavities, and the left plugging mold is provided with a plugging piece installation area; S12, placing the two ends of the secondary cross-section rubber sleeve body (11) into the two plugging cavities on the right plugging mold respectively, and then placing the plugging piece (12) into the plugging piece installation area on the left plugging mold, and the plugging piece (12) is adsorbed in the plugging piece installation area by a vacuum device; S13, heat and melt the two ends of the sealing piece (12) and the secondary section rubber sleeve body (11) by heating the iron, and then close the right sealing mold and the left sealing mold, so that the two ends of the secondary section rubber sleeve body (11) are respectively welded to the two sealing pieces (12), and the sealing welding is completed to prepare the secondary section rubber sleeve (1).

9. The production process of a door seal for refrigerators without a rotating beam according to claim 7, characterized in that: In step b, two transverse rubber sleeves (22) are fixed to the upper end and the lower end of the side of the secondary cross-section rubber sleeve body (11) by welding, respectively, which specifically includes the following steps: S21, preparing a welding mold 1, wherein the welding mold 1 includes a main section welding mold 1 and a secondary section welding mold 1; S22, two transverse rubber sleeves (22) are placed in a main cross-section welding mold 1, and then the secondary cross-section rubber sleeve (1) is inserted into the secondary cross-section welding mold 1, and the ends with planes on the two transverse rubber sleeves (22) are heated and melted, and the sides of the secondary cross-section rubber sleeve (1) are heated and melted by heating iron; S23, after the heated iron is melted, the main section welding mold 1 and the secondary section welding mold 1 are closed, so that the two transverse rubber sleeves (22) are respectively welded to the side surfaces of the secondary section rubber sleeve (1), thereby completing the butt welding.

10. The production process of a door seal for refrigerators without a rotating beam according to claim 7, characterized in that: In step b, the vertical rubber sleeve (21) is fixed between the two horizontal rubber sleeves (22) by welding, which specifically includes the following steps: S31, preparing multiple welding molds 2; S32, inserting the vertical rubber sleeve (21) and the horizontal rubber sleeve (22) into the second welding mold respectively, and heating and melting the two ends of the vertical rubber sleeve (21) provided with the first inclined surface (23) and one end of the horizontal rubber sleeve (22) provided with the second inclined surface (24) respectively by heating iron; S33, after the heated iron is melted, the mold is closed, so that the two ends of the vertical rubber sleeve (21) provided with the inclined surface 1 (23) are respectively welded together with one end of the two transverse rubber sleeves (22) provided with the inclined surface 2 (24), and the corner welding is completed to prepare a door seal for sealing a refrigerator without a rotating beam.

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