Cover opening and closing mechanism of heat preservation container

Abstract

The utility model discloses a cover opening and closing mechanism of a heat preservation container, which not only can ensure the stability of sealing performance, but also can prevent a sealing piece from generating overlarge resistance in the cover opening process to influence the cover opening hand feeling. The cover opening and closing mechanism of the heat preservation container comprises a cover body, a body, a sealing piece, an inner pressing ring and an outer pressing ring. The cover body is pivoted and matched with the rear side of the body, and a cover closing fixing assembly is arranged between the front sides of the cover body and the body; the body is provided with a through hole and a circle of sealing groove arranged on the outer side of the through hole in a surrounding mode. The inner side and the outer side of the sealing piece are pressed and fixed to the two sides of the sealing groove through an inner pressing ring and an outer pressing ring respectively, and the inner pressing ring and the outer pressing ring are fixed to the body relatively. At least one pair of sealing strips are arranged on two sides of the middle part of the upper surface of the sealing piece; the position, corresponding to the sealing groove, of the lower surface of the cover body protrudes to form a circle of flange, and the flange is movably matched in the sealing groove along with pivoting matching of the cover body and the body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heat preservation container, especially point to a kind of switch cover mechanism of heat preservation container. BACKGROUND

[0002] Heat preservation container is a kind of container designed to maintain internal temperature, it can keep hot liquid or food warm, or keep cold items cool. Common heat preservation container has heat preservation box, heat preservation cup and heat preservation box etc.

[0003] The sealing performance between the cover body and the body of heat preservation container is one of important factors to determine its functionality, and sealing ring is an important accessory to improve sealing performance. It is known that the tighter the sealing ring is extruded, the better the sealing effect is, but at the same time the friction of sealing ring on the matching position of cover body is greater, which will generate greater resistance to the opening of cover body, leading to difficult operation of switch cover, so it is difficult to balance the sealing performance and flexibility of switch cover of product. INVENTION CONTENTS

[0004] The main purpose of the utility model is to provide a kind of switch cover mechanism of heat preservation container, solve the problems existing in the prior art, both can guarantee the stability of sealing performance, and can avoid that sealing member generates excessive resistance to the process of opening cover and affects the feeling of opening cover.

[0005] In order to achieve the above purpose, the solution of the utility model is as follows:

[0006] A kind of switch cover mechanism of heat preservation container, including cover body, body, sealing element, inner pressure ring and outer pressure ring;The rear side of the cover body is pivotally connected with the body, and a lid fixing assembly is arranged between the front sides of the two;The body is provided with a through hole and a sealing groove arranged around the outside of the through hole;The inner and outer sides of the sealing element are respectively fixed by inner pressure ring and outer pressure ring on both sides of the sealing groove, and the inner pressure ring and outer pressure ring are respectively fixed with the body;At least one pair of sealing strips are arranged on both sides of the middle part of the upper surface of the sealing element;The lower surface of the cover body corresponds to the position of the sealing groove and protrudes to form a flange, and the flange is movably matched in the sealing groove with the pivotally connected cooperation of the cover body and the body;When the cover body and the body are closed, the lower end of the flange abuts against the middle part of the upper surface of the sealing element, and the middle part is deformed towards the bottom of the sealing groove, and the sealing strips are elastically matched on both sides of the flange.

[0007] The side wall of the through hole protrudes to form a step, and the upper surface of the step is recessed to form the mounting groove.

[0008] The closing and fixing assembly comprises a movable buckle arranged on the front side of the cover body and a buckle joint arranged on the front side of the body; when the cover body and the body are closed, the movable buckle is buckled on the buckle joint.

[0009] Preferably, the movable buckle is fixedly connected to the front side of the lower surface of the cover body; the front side of the body is recessed to form a space accommodating groove, and the buckle joint is arranged in the space accommodating groove; and the front side of the outer compression ring is provided with a space accommodating opening for accommodating the movable buckle.

[0010] The body is provided with a plurality of evenly distributed positioning protrusions on both sides of the sealing groove, and the sealing member is provided with positioning holes corresponding to the positioning protrusions, and the positioning protrusions are embedded in the corresponding positioning holes.

[0011] The upper surface of the sealing member is recessed to form a groove at the position of the middle part, and opposite sealing strips are arranged on both sides of the groove.

[0012] The cover body and the body are made of hard material, and the hard material is injection molded plastic, metal or solid wood; and the sealing member is made of silica gel, PVC, TPU or TPR.

[0013] The lower surfaces of the inner compression ring and the outer compression ring are respectively provided with a plurality of first buckles and second buckles, the upper surface of the body is provided with first buckle holes and second buckle holes for buckling and cooperating with the first buckles and the second buckles respectively, and the first buckle holes and the second buckle holes are respectively located on the inner side and the outer side of the sealing groove.

[0014] Alternatively, the lower surfaces of the inner compression ring and the outer compression ring are respectively provided with a plurality of first screw columns and second screw columns, the body is provided with first screw holes and second screw holes for embedding the first screw columns and the second screw columns respectively, and a screw is arranged in the first screw hole or the second screw hole and locked into the first screw column or the second screw column.

[0015] After the above technical scheme is adopted, the utility model has the following technical effects:

[0016] (1) Compared with the traditional technology of designing a sealing ring on the side wall of a through hole, the utility model fixes the inner side and the outer side of the sealing member to the two sides of the sealing groove on the upper surface of the body through the inner compression ring and the outer compression ring, and the sealing groove can also provide space for the pressure deformation of the sealing member;

[0017] (2) When the utility model is in closed state, the lower end of the flange is inserted into the sealing groove, and the middle part of the upper surface of the sealing piece is pressed to the bottom of the sealing groove, so that the sealing piece is deformed, and the sealing piece will be tightly matched at the lower end of the flange due to the elasticity of itself, realizing the sealing of the contact surface between the sealing piece 3 and the flange, and further realizing the sealing of the cover body and the body, guaranteeing the sealing performance of the product, and the sealing strip elastically matched on both sides of the flange can also realize further sealing, improving the sealing effect;

[0018] (3) Since the flange of the cover body mainly acts on the sealing piece in the direction nearly parallel to the axial direction of the through hole, the sealing piece is also attached to the lower end position of the flange, and the sealing piece as a whole will not generate friction force acting on the side surface of the flange in the axial direction of the through hole, so that the utility model is more easy, smooth and not jammed when opening and closing the cover, the hand feeling is good, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the closed state perspective drawing of the first embodiment of the utility model;

[0020] Figure 2 It is the open state perspective drawing of the first embodiment of the utility model;

[0021] Figure 3 It is the exploded view of the first embodiment of the utility model; Figure 1 ;

[0022] Figure 4 It is the exploded view of the first embodiment of the utility model; Figure 2 ;

[0023] Figure 5 It is the sectional view of the first embodiment of the utility model;

[0024] Figure 6 It is the enlarged view of A in the utility model; Figure 5

[0025] Figure 7 It is the closed state perspective drawing of the second embodiment of the utility model;

[0026] Figure 8 It is the open state perspective drawing of the second embodiment of the utility model;

[0027] Figure 9 It is the exploded view of the second embodiment of the utility model; Figure 1 ;

[0028] Figure 10 It is the exploded view of the second embodiment of the utility model; Figure 2 ;

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] ​1 - cover; 11 - flange; 12 - movable buckle;

[0031] 2 - body; 21 - through hole; 22 - sealing groove; 23 - step; 24 - movable buckle; 25 - accommodation slot; 26 - first buckle hole; 27 - second buckle hole; 28 - positioning protrusion; 29 - mounting groove; 210 - rib; 220 - first screw hole; 230 - second screw hole;

[0032] 3 - sealing element; 31 - middle part; 32 - sealing strip; 33 - positioning hole; 34 - groove;

[0033] 4 - inner pressure ring; 41 - first buckle; 42 - first elastic sheet; 43 - first screw column;

[0034] 5 - outer pressure ring; 51 - accommodation port; 52 - second buckle; 53 - second elastic sheet; 54 - second screw column;

[0035] a - lid closing fixing assembly. DETAILED DESCRIPTION

[0036] In order to further explain the technical scheme of the utility model, the utility model will be described in detail through specific embodiments.

[0037] Reference Figures 1-10 As shown in the figure, the utility model discloses a kind of switch cover mechanism of heat preservation container, including cover 1, body 2, sealing element 3, inner pressure ring 4 and outer pressure ring 5;

[0038] Cover 1 is pivotally connected with the rear side of body 2, and the front side of the two is provided with lid closing fixing assembly a;

[0039] Body 2 is provided with through hole 21, and a circle of sealing groove 22 is arranged around the outer side of the inlet end of through hole 21;

[0040] The inner and outer sides of sealing element 3 are fixed by being pressed tightly by inner pressure ring 4 and outer pressure ring 5 on the two sides of sealing groove 22, so that sealing element 3 completely covers sealing groove 22 on the cross section of the utility model (see Figure 6 ), and inner pressure ring 4 and outer pressure ring 5 are fixed relative to body 2 respectively;At least a pair of sealing strips 32 is arranged on the two sides of the middle part 31 of the upper surface of sealing element 3;

[0041] The lower surface of cover 1 is protruded to form a circle of flange 11 at the position corresponding to sealing groove 22, and flange 11 is movably matched in sealing groove 22 with the pivotally connected cooperation of cover 1 and body 2;

[0042] When cover 1 and body 2 are closed, the lower end of flange 11 abuts against the middle part 31 of the upper surface of sealing element 3, and the middle part 31 is deformed towards the bottom of sealing groove 22, and at the same time, sealing strip 32 is elastically matched on the two sides of flange 11.

[0043] Through the above scheme, compared with the traditional technology of designing the sealing ring on the side wall of the through hole, the utility model discloses that the inner and outer sides of the sealing piece 3 are fixed on both sides of the sealing groove 22 on the upper surface of the body 2 through the inner pressure ring 4 and the outer pressure ring 5 respectively, and the sealing groove 22 can also provide a space for the pressure deformation of the sealing piece 3. When the utility model is in the closed state, the lower end of the flange 11 is inserted into the sealing groove 22, and the middle part 31 on the upper surface of the sealing piece 3 is pressed towards the bottom of the sealing groove 22, so that the sealing piece 3 is deformed, and the sealing piece 3 is tightly matched with the lower end of the flange 11 due to the elasticity of the sealing piece 3, the contact surface between the sealing piece 3 and the flange 11 is sealed, and the sealing of the cover body 1 and the body 2 is realized, the sealing performance of the product is ensured, the sealing strip 32 elastically matched on both sides of the flange 11 can also realize further sealing, and the sealing effect is improved. And, since the flange 11 of the cover body 1 mainly acts on the sealing piece 3 in the direction nearly parallel to the axial direction of the through hole 21, the sealing piece 3 is also attached to the lower end position of the flange 11, and the sealing piece 3 as a whole will not generate friction force acting on the side surface of the flange 11 in the axial direction of the through hole 21, so that the utility model is more easy to open and close, smooth and not jammed, and the hand feeling is good, and the user experience is improved.

[0044] In some embodiments of the utility model, the cover body 1 and the body 2 are made of hard material to ensure the strength and hardness of the structure.

[0045] Further, the hard material is injection molded plastic, metal or solid wood, the plastic can be polyethylene, polypropylene, ABS, PA, polystyrene, etc., the metal can be iron, stainless steel, aluminum alloy, etc., and the solid wood can be pine, rubber wood, birch, etc. cheap and hard wood material, which ensures the material strength and can control the cost.

[0046] In some embodiments of the utility model, the sealing piece 3 can be made of common materials used to make sealing rings, such as silica gel, PVC (polyvinyl chloride), TPU (thermoplastic polyurethane) or TPR (thermoplastic rubber).

[0047] In some embodiments of the utility model, when the thickness of the body 2 is relatively thin, a step 23 can be formed on the side wall of the through hole 21, and the mounting groove 23 is recessed on the upper surface of the step 23 to ensure sufficient mounting area. When the step 23 is designed, the sealing groove 22 is mainly arranged on the side of the step 23 close to the through hole 21, i.e. the inner side.

[0048] In some embodiments of the utility model, the closing lid fixing assembly a includes the movable buckle 12 arranged on the front side of the lid body 1 and the buckle joint part 24 arranged on the front side of the body 2, when the lid body 1 is closed with the body 2, the movable buckle 12 is buckled on the buckle joint part 24, to realize the separable cooperation between the front side of the lid body 1 and the front side of the body 2. The pivot connection between the movable buckle 12 and the lid body 1 is generally reset by torsional spring, that is, to realize automatic opening of the lid; the buckle joint part 24 can be directly integrally formed on the body 2, or separately formed and connected on the body 2.

[0049] Further, the movable buckle 12 is fixedly connected on the front side of the lower surface of the lid body 1 (located on the side of the boss 12); the front side of the body 2 is recessed to form the accommodation groove 25, and the buckle joint part 24 is arranged in the accommodation groove 25; the front side of the outer pressure ring 5 is provided with the accommodation port 51 for accommodating the movable buckle 12. After the lid body 1 is closed with the body 2, the movable buckle 12 is matched in the accommodation groove 25, and does not protrude from the front of the lid body 1 and the body 2, so that the surface of the heat preservation container is flat.

[0050] In some embodiments of the utility model, the pivot connection between the rear side of the lid body 1 and the rear side of the body 2 can be pivot connection through the rotating shaft, or can be pivot connection through the hinge, according to actual needs.

[0051] In some embodiments of the utility model, the body 2 is provided with a plurality of evenly distributed positioning protrusions 28 on both sides of the sealing groove 22, and the sealing element 3 is provided with a positioning hole 33 opposite to the positioning protrusion 28, and the positioning protrusion 28 is embedded in the corresponding positioning hole 33, so that the positioning of the sealing element 3 is realized, and displacement of the sealing element 3 in the horizontal direction of the upper surface of the body 2 is prevented.

[0052] In some embodiments of the utility model, the upper surface of the sealing element 3 is recessed to form a groove 34 at the position of the middle part 31, and opposite sealing strips 32 are arranged on both sides of the groove 34. By designing the groove 34 in the sealing element 3, the recessed shape can be formed before the flange 11 is inserted, and a certain pre-deformation amount is provided.

[0053] In some embodiments of the utility model, the lid body 1 can be the entire lid body of the heat preservation container, or can be only a part of the lid body 1, and cooperates with the heat preservation material of the container to form a complete movable lid; similarly, the body 2 can be the entire body of the heat preservation container, and the through hole 21 is connected to the opening of the container cavity, or the body 2 can be the container opening part of the heat preservation container, and cooperates with the heat preservation material of the container to form a complete container part, and the lower surface of the body 2 can be provided with a mounting groove 29 for positioning and mounting the upper end of the heat preservation material, and a plurality of ribs 210 are connected between the two walls of the mounting groove 29 to improve the strength.

[0054] Referring to Figures 1-6, 7-10, respectively, show the first embodiment and the second embodiment of the utility model, the difference between the two is mainly the fixed mode between the inner pressure ring 4, the outer pressure ring 5 and the body 2.

[0055] In the first embodiment, the inner pressure ring 4, the outer pressure ring 5 and the body 2 are fixed by the buckle connection mode, specifically:

[0056] The lower surface of the inner pressure ring 4, the outer pressure ring 5 is provided with a plurality of first buckle 41, second buckle 52 respectively, the upper surface of the body 2 is provided with first buckle hole 26, second buckle hole 27 respectively for the buckling cooperation of first buckle 41, second buckle 52, realize the buckle connection of inner pressure ring 4, outer pressure ring 5 and body 2, without only relying on mechanical structure can be fixed to sealing element 3, without using glue, welding and other materials or process, assemble more simply, more efficient;First buckle hole 26, second buckle hole 27 are located at the inner and outer sides of sealing groove 22.

[0057] Further, the two sides of the first buckle 41, the second buckle 52 are provided with first spring piece 42, second spring piece 53 respectively, the first spring piece 42, the second spring piece 53 are tightly fitted in the length direction end of first buckle hole 26, second buckle hole 27 respectively, to avoid the first buckle 41, the second buckle 52 shake, that is, ensure that the inner pressure ring 4, the outer pressure ring 5 will not produce displacement after installation, ensure the stability of sealing element 3 is fixed.

[0058] In the second embodiment, the inner pressure ring 4, the outer pressure ring 5 and the body 2 are fixed by screw locking mode, the inner pressure ring 4, the outer pressure ring 5 can be fixed more tightly, improve the sealing performance, specifically:

[0059] The lower surface of the inner pressure ring 4, the outer pressure ring 5 is provided with a plurality of first screw column 43, second screw column 54 respectively, the body 2 is provided with first screw hole 220, second screw hole 220 respectively for the first screw column 43, the second screw column 54 is embedded, screw is arranged in first screw hole 220 or second screw hole 220 and is locked into first screw column 43 or second screw column 54, to realize the screw locking installation mode of inner pressure ring 4 or outer pressure ring 5. Compared with the first embodiment, the inner pressure ring 4, the outer pressure ring 5 can be fixed more tightly, so the sealing effect of product is better.

[0060] The above embodiment and drawing are not limited to the product form and style of the utility model, any ordinary skilled in the art makes appropriate changes or modifications to it, should be regarded as not departing from the patent scope of the utility model.

Claims

1. A switch cover mechanism of a thermal container, characterized in that: comprising a cover body, a body, a sealing element, an inner pressure ring and an outer pressure ring; the cover body is pivotally connected with the rear side of the body, and a closing cover fixing assembly is arranged between the front sides of the two; the body is provided with a through hole and a sealing groove arranged around the outside of the through hole; the inner and outer sides of the sealing element are tightly fixed on the two sides of the sealing groove through the inner pressure ring and the outer pressure ring respectively, and the inner pressure ring and the outer pressure ring are fixed relative to the body respectively; at least one pair of sealing strips are arranged on both sides of the middle part of the upper surface of the sealing element; a flange is protruded on the lower surface of the cover body corresponding to the position of the sealing groove, and the flange is movably fitted in the sealing groove along with the pivotal connection of the cover body and the body; when the cover body and the body are closed, the lower end of the flange abuts against the middle part of the upper surface of the sealing element, and the middle part is deformed towards the bottom of the sealing groove, and the sealing strips are elastically fitted on both sides of the flange.

2. The switch cover mechanism of the thermal container according to claim 1, characterized in that: a step is protruded on the side wall of the through hole, and the upper surface of the step is recessed to form the sealing groove.

3. The switch cover mechanism of the thermal container according to claim 1, characterized in that: the closing cover fixing assembly comprises a movable buckle arranged on the front side of the cover body and a buckling part arranged on the front side of the body; when the cover body and the body are closed, the movable buckle is buckled on the buckling part.

4. The switch cover mechanism of the thermal container according to claim 3, characterized in that: the movable buckle is fixedly connected on the front side of the lower surface of the cover body; the front side of the body is recessed to form a clearance groove, and the buckling part is arranged in the clearance groove; and the front side of the outer pressure ring is provided with a clearance opening for the movable buckle.

5. The switch cover mechanism of the thermal container according to claim 1, characterized in that: a plurality of positioning protrusions are arranged on both sides of the sealing groove of the body, and the sealing element is provided with positioning holes corresponding to the positioning protrusions, and the positioning protrusions are embedded in the corresponding positioning holes.

6. The switch cover mechanism of the thermal container according to claim 1, characterized in that: a groove is recessed on the upper surface of the sealing element at the position of the middle part, and the groove is provided with opposite sealing strips on both sides.

7. The switch cover mechanism of the thermal container according to claim 1, characterized in that: the cover body and the body are made of hard material, and the hard material is injection molded plastic, metal or solid wood; and the sealing element is made of silica gel, PVC, TPU or TPR.

8. The switch cover mechanism of the thermal container according to any one of claims 1 to 7, characterized in that: the lower surfaces of the inner pressure ring and the outer pressure ring are respectively provided with a plurality of first buckles and second buckles, and the upper surface of the body is provided with first buckle holes and second buckle holes for buckling and fitting of the first buckles and the second buckles respectively, and the first buckle holes and the second buckle holes are respectively located on the inner and outer sides of the sealing groove. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. The switch cover mechanism of the thermal container according to claim 8, characterized in that: The first and second buckles are respectively provided with first and second elastic sheets on both sides, and the first and second elastic sheets are respectively tightly fitted into the length direction end of the first and second buckle holes.

10. The switch cover mechanism of the thermal container according to any one of claims 1 to 7, characterized in that: The lower surfaces of the inner and outer pressure rings are respectively provided with a plurality of first and second screw columns, and the body is provided with first and second screw holes for embedding the first and second screw columns, respectively, and the screw is threaded into the first or second screw hole and locked into the first or second screw column.

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