Quick hermetic sleeve joint and hermetic joint assembly

Abstract

The utility model provides a quick airtight sleeve joint and an airtight joint assembly, and relates to the technical field of pipe joints. At least the front end of the sleeve head is of a cylindrical structure with a pipe cavity, and a front pipe opening communicated with the pipe cavity is formed in the front end face of the sleeve head. The lock catch plate has the length direction and the width direction, the two ends, in the length direction, of the lock catch plate serve as the front end and the rear end of the lock catch plate respectively, and the two ends, in the width direction, of the lock catch plate serve as the handheld end and the connecting end of the lock catch plate respectively. The front end of the connecting end extends to the front side of the sleeve head, and the plate face of the locking plate is tangent to any point of the outer surface of the front end of the sleeve head. A clamping groove is formed in the portion, located on the front side of the sleeve head, of the connecting end. The pipeline quick connector solves the technical problems that in the prior art, a large amount of working hours are wasted and labor cost is high in the production and dismounting process of the pipeline quick connector.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe joint technical field especially, it is a kind of quick airtight sleeve pipe joint and airtight joint assembly. BACKGROUND

[0002] Automobile air conditioning pipeline quick connector is widely used in each aspect of automobile air conditioning system, mainly includes: air conditioning compressor connector, for connecting air conditioning compressor and other system components, such as condenser, evaporator etc.;Pipeline connection connector, for connecting the connector of different pipelines, such as connecting the pipeline between condenser and evaporator;Pipeline repair connector, when pipeline air leakage or damage occurs, quick connector can be used for temporary repair or replacement.

[0003] In automobile air conditioning pipeline quick connector, airtight connector can be used to block pipeline, temporarily or completely close an area, facilitate inspection, cleaning and maintenance, and can also be used to connect two pipe fittings.In prior art, airtight connector is used in cooperation with flange pipe connector, airtight connector itself includes a flange, two flanges are connected by multiple bolts, and gasket is placed between two flanges to form tight seal, since multiple bolts are installed, all bolts need to be tightened to form airtight, and all bolts need to be unscrewed for disassembly, which has problems of wasting a lot of working hours and high labor cost in production and disassembly process. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of quick airtight sleeve pipe joint and airtight joint assembly to alleviate the above technical problems existing in prior art.

[0005] To achieve the above object, the utility model embodiment adopts the following technical scheme:

[0006] First, the utility model embodiment provides a kind of quick airtight sleeve pipe joint, including sleeve head and lock catch plate;

[0007] The sleeve head is at least front end and has the cylindrical structure with the lumen, and the front end surface of the sleeve head is equipped with the front pipe mouth that is communicated with the lumen;

[0008] The lock catch plate has length direction and width direction, and the two ends in the length direction of the lock catch plate are the front end and the rear end of the lock catch plate respectively, and the two ends in the width direction of the lock catch plate are the hand-held end and the connecting end of the lock catch plate respectively: the rear end of the connecting end is fixed or integrally connected to the outer surface of the cylindrical structure of the sleeve head, the front end of the connecting end extends to the front side of the sleeve head, and the plate surface of the lock catch plate is tangent to any point on the outer surface of the front end of the sleeve head;

[0009] The connecting end is equipped with a clamping groove in the part located at the front side of the sleeve head.

[0010] In the quick airtight sleeve joint provided by the embodiment of the utility model, optionally, the rear end of the lumen is closed, or the sleeve head is further provided with a rear pipe opening in communication with the lumen.

[0011] In the quick airtight sleeve joint provided by the embodiment of the utility model, optionally, the overall outer contour of the sleeve head is cylindrical.

[0012] In the quick airtight sleeve joint provided by the embodiment of the utility model, optionally, the sleeve head and the lock catch plate are both made of metal material, and the rear end of the connecting end is welded to the outer surface of the cylindrical structure of the sleeve head.

[0013] In the quick airtight sleeve joint provided by the embodiment of the utility model, optionally, the rear side wall of the clamping groove is flush with the front end surface of the cylindrical structure of the sleeve head.

[0014] In the quick airtight sleeve joint provided by the embodiment of the utility model, optionally, the length of the clamping groove in the width direction of the lock catch plate is the depth H of the clamping groove, and 2mm≤H≤4mm.

[0015] In the second aspect, the utility model provides a kind of airtight joint assembly, including flange pipe joint and the quick airtight sleeve joint of any one of the preceding embodiments. Wherein, the flange pipe joint includes gourd-shaped flange plate and the butt joint pipeline connected to the flange plate;At least one sealing ring is externally provided with the butt joint pipeline.Suit assembly state: the front pipe opening is sleeved on the outside of the butt joint pipeline, the sealing ring is extruded between the inner wall of the front pipe opening and the outer wall of the butt joint pipeline, and the front pipe opening is rotated to the inside of the clamping groove of the flange plate clamping in the lock catch plate relative to the butt joint pipeline.

[0016] In the airtight joint assembly provided by the embodiment of the utility model, optionally, the outer diameter of the front end of the sleeve head is the same as the large circle outer diameter of the flange plate.

[0017] In the airtight joint assembly provided by the embodiment of the utility model, optionally, the axial length of the lumen of the sleeve head is L1, and the axial length of the butt joint pipeline is L3, then L1≥L3.

[0018] In the airtight joint assembly provided by the embodiment of the utility model, optionally, the length of the clamping groove in the length direction of the lock catch plate is L2, and the thickness of the flange plate is L4, then: L2=L4.

[0019] Compared with the pipeline quick connector in the prior art, the quick airtight sleeve joint and the airtight joint assembly provided by the embodiment of the utility model can at least achieve the following beneficial effects:

[0020] (1) simple structure, low production cost, high production efficiency;

[0021] (2) Easy to disassemble, easy to maintain and replace, greatly saving the installation and maintenance time;

[0022] (3) High reliability, the locking force is provided by the locking plate, which can maintain stable sealing performance and ensure normal operation of the pipeline system. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 The overall structure of the quick airtight sleeve joint provided by the embodiment of the present application is shown in the axonometric view Figure 1 ;

[0025] Figure 2 The overall structure of the quick airtight sleeve joint provided by the embodiment of the present application is shown in the axonometric view Figure 2 ;

[0026] Figure 3 The half-section schematic view of the side view of the quick airtight sleeve joint provided by the embodiment of the present application is shown in the axonometric view

[0027] Figure 4 The front view of the quick airtight sleeve joint provided by the embodiment of the present application is shown in the axonometric view

[0028] Figure 5 The overall structure of the flange pipe joint in the airtight joint assembly provided by the embodiment of the present application is shown in the axonometric view

[0029] Figure 6 The exploded structure of the flange pipe joint in the airtight joint assembly is shown in the axonometric view Figure 5 ;

[0030] Figure 7 The front view of the flange pipe joint in the airtight joint assembly is shown in the axonometric view Figure 5 ;

[0031] Figure 8 The side cross-sectional view of the flange pipe joint in the airtight joint assembly is shown in the axonometric view (the sealing ring is not shown) Figure 5 ;

[0032] Figure 9 The assembly structure of the airtight joint assembly provided by the embodiment of the present application is shown in the axonometric view Figure 1 ;

[0033] Figure 10 The assembly structure of the airtight joint assembly provided by the embodiment of the present application is shown in the axonometric view Figure 9The schematic diagram of the explosion structure of the middle gas-tight joint assembly;

[0034] Figure 11 The assembly structure of the gas-tight joint assembly is provided with the shaft measurement Figure 2 ;

[0035] Figure 12 For Figure 11 The local structure of the middle A area is enlarged.

[0036] Icon: 100 - quick gas-tight sleeve joint; 1 - sleeve head; 11 - lumen; 2 - lock plate; 21 - handheld end; 22 - connecting end; 20 - clamping groove; 200 - flange pipe joint; 3 - flange plate; 4 - butt joint pipe; 41 - limiting groove; 5 - sealing ring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0039] It should be noted that: similar labels and letters represent similar items in the drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0040] In the description of the utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0041] In addition, the terms "horizontal", "vertical" do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0042] In the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "setting", "mounting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0044] The first aspect of the present embodiment provides a quick airtight sleeve joint, referring to Figures 1 to 4 The quick airtight sleeve joint 100 comprises a sleeve head 1 and a locking plate 2. The sleeve head 1 is at least the front end of the cylindrical structure with a lumen 11, and the front end surface of the sleeve head 1 is provided with a front pipe opening in communication with the lumen 11. The locking plate 2 has a length direction and a width direction, and the two ends in the length direction of the locking plate 2 are respectively the front end and the rear end of the locking plate 2, and the two ends in the width direction of the locking plate 2 are respectively the hand holding end 21 and the connecting end 22 of the locking plate 2: the rear end of the connecting end 22 is fixed or integrally connected to the outer surface of the cylindrical structure of the sleeve head 1, the front end of the connecting end 22 extends to the front side of the sleeve head 1, and the plate surface of the locking plate 2 is tangent to any point on the outer surface of the front end of the sleeve head 1; The connecting end 22 is provided with a clamping groove 20 at the part located on the front side of the sleeve head 1.

[0045] In some optional embodiments of the present embodiment, the rear end of the lumen 11 of the sleeve head 1 in the quick airtight sleeve joint is closed, and in use, the front pipe opening of the sleeve head 1 can be connected with the flange pipe joint 200 to block the pipe opening of the flange pipe joint 200; In another optional embodiment of the present embodiment, the sleeve head 1 of the quick airtight sleeve joint is further provided with a rear pipe opening in communication with the lumen 11, and in use, the front pipe opening of the sleeve head 1 can be connected with the flange pipe joint 200 to form a series pipeline.

[0046] Specifically, the second aspect of the present embodiment provides an airtight joint assembly, referring to Figures 5 to 12 , combined with Figures 1 to 4The airtight joint assembly comprises the flange pipe joint 200 and the aforesaid quick airtight sleeve joint 100; the flange pipe joint 200 comprises a gourd-shaped flange plate 3 and a butt pipe 4 connected to the flange plate 3; at least one sealing ring 5 is externally sleeved on the butt pipe 4, and optionally but not limitedly, a limiting groove 41 corresponding to the sealing ring 5 is arranged on the peripheral surface of the butt pipe 4 to constrain the sealing ring 5 from sliding forward and backward relative to the butt pipe 4.

[0047] When assembled, the front pipe opening of the sleeve head 1 of the quick airtight pipe joint provided in the embodiment is sleeved on the outside of the butt pipe 4 of the flange pipe joint 200, the sealing ring 5 is squeezed between the inner wall of the front pipe opening of the sleeve head 1 and the outer wall of the butt pipe 4 of the flange pipe joint 200, then the sleeve head 1 is rotated relative to the butt pipe 4 (the hand-held end 21 of the locking plate 2 can be held to rotate), until the front pipe opening of the sleeve head 1 is rotated relative to the butt pipe 4 to the position that the flange plate 3 is clamped inside the clamping groove 20 of the locking plate 2, and the locking force is provided by the locking plate 2. The structure has been tested and will not fall off under the action of fluid pressure in the pipeline.

[0048] Compared with the pipeline quick joint in the prior art, the quick airtight sleeve joint and the airtight joint assembly provided in the embodiment can at least achieve the following beneficial effects:

[0049] (1) simple structure, low production cost and high production efficiency;

[0050] (2) easy to disassemble, maintain and replace, greatly saving the installation and maintenance time;

[0051] (3) high reliability, the locking force is provided by the locking plate 2, the stable sealing performance can be maintained, and the normal work of the pipeline system is ensured.

[0052] For the quick airtight sleeve joint provided in the embodiment, only the front end part of the sleeve head 1 can have a cylindrical outer contour, and the rear end part can be designed according to needs, wherein, optionally but not limitedly, as shown in Figures 1 to 4 , the overall outer contour of the sleeve head 1 is cylindrical.

[0053] In addition, in the optional embodiment of the embodiment, the sleeve head 1 and the locking plate 2 are both made of metal materials, and the rear end of the connecting end 22 is welded to the outer surface of the cylindrical structure of the sleeve head 1.

[0054] In the optional embodiment of the embodiment, the rear side wall of the clamping groove 20 is flush with the front end surface of the cylindrical structure of the sleeve head 1, so as to tightly assemble the quick airtight sleeve joint 100 and the flange pipe joint 200.

[0055] In the optional embodiment of the embodiment, the length of the clamping groove 20 in the width direction of the locking plate 2 is the depth H of the clamping groove 20, and 2mm≤H≤4mm.

[0056] For the gas-tight joint assembly provided by the embodiment, in order to tightly fit the quick gas-tight sleeve joint 100 and the flange pipe joint 200, optionally: the inner diameter Φd of the lumen of the sleeve head 1 matches the outer diameter Φd1 of the abutting pipe 4 in the flange pipe joint 200, Φd1 is slightly smaller than Φd; the outer diameter ΦD of the front end of the sleeve head 1 is the same as the large-circle outer diameter ΦD1 of the flange plate 3; taking the axial length of the lumen 11 of the sleeve head 1 as L1, the axial length of the abutting pipe 4 as L3, then L1≥L3; taking the length of the clamping slot 20 in the length direction of the locking plate 2 as L2, the thickness of the flange plate 3 as L4, then: L2=L4.

[0057] Finally, it should be noted that: each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to. The above embodiments in the specification are used to illustrate the technical solutions of the utility model, but not to limit them. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some or all of the technical features. The modification or replacement does not make the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A quick gas-tight sleeve joint, characterized by: The sleeve (1) and the locking plate (2) are provided. The sleeve (1) has a cylindrical structure with a lumen (11) at least at the front end, and a front pipe opening is arranged on the front end surface of the sleeve (1) and communicates with the lumen (11). The locking plate (2) has a length direction and a width direction, and the two ends in the length direction of the locking plate (2) are the front end and the rear end of the locking plate (2), and the two ends in the width direction of the locking plate (2) are the hand holding end (21) and the connecting end (22) of the locking plate (2). The rear end of the connecting end (22) is fixed or integrally connected to the outer surface of the cylindrical structure of the sleeve (1), and the front end of the connecting end (22) extends to the front side of the sleeve (1), and the plate surface of the locking plate (2) is tangent to any point on the outer surface of the front end of the sleeve (1). A clamping groove (20) is arranged at the part of the connecting end (22) located on the front side of the sleeve (1).

2. The quick air tight sleeve joint of claim 1, wherein: The rear end of the lumen (11) is closed, or a rear pipe opening is further arranged on the sleeve (1) and communicates with the lumen (11).

3. The quick air tight sleeve joint of claim 1, wherein: The overall outer contour of the sleeve (1) is cylindrical.

4. The quick air tight sleeve joint of claim 1, wherein: The sleeve (1) and the locking plate (2) are made of metal material, and the rear end of the connecting end (22) is welded to the outer surface of the cylindrical structure of the sleeve (1).

5. The quick air tight sleeve joint of claim 1, wherein: The rear side wall of the clamping groove (20) is flush with the front end surface of the cylindrical structure of the sleeve (1).

6. The quick air tight sleeve joint of claim 1, wherein: The length of the clamping groove (20) in the width direction of the locking plate (2) is the depth H of the clamping groove (20), and 2mm≤H≤4mm.

7. A hermetic joint assembly characterized by: The flange pipe joint (200) and the quick airtight sleeve joint (100) of any one of claims 1-6 are provided. The flange pipe joint (200) comprises a flange (3) in the shape of a gourd and a butt pipe (4) connected to the flange (3); at least one sealing ring (5) is arranged outside the butt pipe (4); In the assembled state, the front pipe opening is sleeved outside the butt pipe (4), the sealing ring (5) is pressed between the inner wall of the front pipe opening and the outer wall of the butt pipe (4), and the front pipe opening is rotated relative to the butt pipe (4) to the inside of the flange (3) clamped in the clamping groove (20) of the locking plate (2).

8. The hermetic junction assembly of claim 7, wherein: The outer diameter of the front end of the sleeve (1) is the same as the large circle outer diameter of the flange (3).

9. The hermetic junction assembly of claim 7, wherein: The axial length of the lumen (11) of the sleeve (1) is L1, and the axial length of the butt pipe (4) is L3, then L1≥L3.

10. The hermetic junction assembly of claim 7, wherein: The length of the clamping groove (20) in the length direction of the locking plate (2) is L2, and the thickness of the flange (3) is L4, then L2=L4.

Images