Leak-proof expansion joint seal sleeve

Abstract

The utility model relates to the technical field of expansion joint assembly, especially to a kind of anti-leakage expansion joint sealing sleeve.The utility model uses the technical scheme that the centre axis is the pipe sleeve main body cooperation column of left and right direction, the pipe sleeve main body cooperation column is made of metal material, the centre axis position of the pipe sleeve main body cooperation column is equipped with the cylindrical main body assembly combination hole that overall left and right direction is penetrated, it is characterized by: the outside of the pipe sleeve main body cooperation column is conical structure surface, the outside conical structure surface is equipped with the conical flange cooperation stable groove of same taper, the inner cylindrical surface of the main body assembly combination hole is equipped with the conical sealing combination connecting groove of same centre axis.The utility model has the advantages that: the tensile strength between axial is stronger when using, the inside and the cooperation position of bellows are set by conical sealing combination connecting groove, can be more closely combined with sealing material, the sealing security is more reliable when using.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint assembly technology, and in particular to a leak-proof expansion joint sealing sleeve. Background Technology

[0002] During the production of expansion joints, the bellows body and the flange structure at the ends usually need to be combined with a sleeve. The existing sleeves are cylindrical structures, and the combination is made directly through the cylindrical structure surface. The sealing performance is relatively poor. Welding is performed directly at the end position, and the welding area is relatively small. The load-bearing capacity is also relatively poor. When using existing leak-proof expansion joints, the sealing performance usually needs to be achieved with sealing structures at multiple positions. The overall assembly cost during production is relatively high, and the space occupied by the fitting positions is relatively large, resulting in a relatively large size of the expansion joint body structure. This cannot meet the needs of some applications with limited space. Utility Model Content

[0003] The purpose of this utility model is to provide a leak-proof expansion joint sealing sleeve. By setting the external mating position with the flange as a conical structure, it can make a larger mating area with the flange during mating and has stronger axial tensile strength during use. The internal mating position with the bellows is provided with a conical sealing combination connection groove, which can make a tighter combination with the sealing material, and the sealing safety during use is more reliable. The left end is provided with a conical welding mating connection groove, which can achieve a concave welding mating during welding, with more space at the welding position, stronger welding strength, stronger overall load-bearing capacity during later use, and more reliable safety during use.

[0004] The technical solution of this utility model is as follows:

[0005] A leak-proof expansion joint sealing sleeve includes a sleeve body mating column with its central axis pointing left and right. The sleeve body mating column is made of metal. A cylindrical body assembly hole, penetrating the entire structure in a left-right direction, is provided at the central axis position of the sleeve body mating column. The sleeve body mating column has a conical structural surface on its outer side, and a conical flange mating stabilizing groove with the same taper is provided on the outer conical structural surface. A conical sealing assembly connecting groove with the same central axis is provided on the inner cylindrical surface of the body assembly connecting hole. Neither the left nor right sides of the sealing assembly connecting groove penetrate the left and right sides of the sleeve body mating column. A conical welding stabilizing mating groove is provided on the left side of the sleeve body mating column, and the taper of the sealing assembly connecting groove is the same as the taper of the flange mating stabilizing groove.

[0006] Furthermore, the flange mating stabilizing groove is located at the center position of the mating column of the pipe sleeve body in the left-right direction.

[0007] Furthermore, the width of the flange mating stabilizing groove in the left-right direction is greater than half the length of the pipe sleeve body mating column in the left-right direction.

[0008] Furthermore, the left side of the sealing assembly connection groove is a conical structural surface with a taper opposite to that of the sealing assembly connection groove.

[0009] Furthermore, the width of the sealing combination connection groove in the left-right direction is smaller than the width of the flange mating stabilizing groove in the left-right direction, and the projection of the sealing combination connection groove in the vertical direction is completely located within the area of ​​the flange mating stabilizing groove projected in the vertical direction.

[0010] The beneficial effects of this utility model are:

[0011] This invention features a conical structure at the external interface with the flange, allowing for a larger contact area and stronger axial tensile strength. The internal interface with the bellows incorporates a conical sealing groove, enabling a tighter seal and more reliable sealing. A conical welding groove at the left end allows for concave welding, providing more space, stronger welds, and greater overall load-bearing capacity, enhancing safety and reliability. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a front view of the present invention;

[0014] Figure 3 This is a schematic diagram of the left side of this utility model;

[0015] Figure 4 This is a schematic diagram on the right side of the present invention;

[0016] Figure 5 This is a top view of the present invention;

[0017] Figure 6 This is a cross-sectional view of position AA of this utility model;

[0018] Figure 7 This is a partially enlarged schematic diagram of position B in this utility model;

[0019] In the diagram: 1. Pipe sleeve body mating column, 2. Body assembly combination hole, 3. Flange mating stabilizing groove, 4. Sealing combination connection groove, 5. Welding stabilizing mating groove. Detailed Implementation

[0020] like Figures 1 to 7 As shown, a leak-proof expansion joint sealing sleeve includes a sleeve body mating column 1 with its central axis pointing left and right. The sleeve body mating column 1 is made of metal. A cylindrical body assembly hole 2, penetrating the entire structure in a left-right direction, is provided at the central axis of the sleeve body mating column 1. During use, the main structure of the bellows end is inserted into this position for assembly. The outer side of the sleeve body mating column 1 is a conical structural surface. A conical flange mating stabilizing groove 3 with the same taper is provided on the outer conical structural surface. A conical structural surface that mates with this structure is provided inside the flange mating hole, allowing for a larger mating area during assembly. A conical sealing assembly connecting groove 4 with the same central axis is provided on the inner cylindrical surface of the body assembly assembly hole 2. This position is filled with sealing material and can also be press-fitted with a sealing ring, ensuring better overall sealing at the bellows mating position during use, providing reliable leak prevention, and replacing multiple sealing structures in existing expansion joints while occupying less space during use. The sealing combination connection groove 4 does not penetrate the left and right sides of the sleeve body mating column 1. A conical welding stabilizing groove 5 is provided on the left side of the sleeve body mating column 1. This improves welding stability with the external mating position of the bellows during welding, forming a concave welding mating groove, resulting in more reliable material fusion during welding. The taper of the sealing combination connection groove 4 is the same as that of the flange mating stabilizing groove 3, further enhancing the stability of the inner and outer structures and facilitating manufacturing. By setting the external mating position with the flange as a conical structure, it allows for a larger mating area with the flange during mating, and provides stronger axial tensile strength during use. The conical sealing combination connection groove at the internal mating position with the bellows allows for a tighter fit with the sealing material, resulting in more reliable sealing safety during use. The conical welding mating connection groove at the left end allows for a concave welding fit during welding, providing more space at the welding position, stronger welding strength, and greater overall load-bearing capacity and safety during use.

[0021] Preferably, the flange fitting stabilizing groove 3 is located at the center of the fitting column 1 of the main sleeve in the left-right direction, which has a stronger load-bearing capacity during fitting, and at the same time can ensure that the main structure of the sleeve is stronger and the fitting safety is more reliable during use.

[0022] Preferably, the width of the flange mating stabilizing groove 3 in the left-right direction is greater than half the length of the pipe sleeve body mating column 1 in the left-right direction, which can further improve the mating bearing capacity during assembly and the tensile strength during later use.

[0023] Preferably, the left side of the sealing combination connecting groove 4 is a conical structural surface with a taper opposite to that of the sealing combination connecting groove 4, so that there is more space for the sealing material to fill and fit at this position, resulting in better sealing stability.

[0024] Preferably, the width of the sealing combination connection groove 4 in the left-right direction is smaller than the width of the flange mating stabilizing groove 3 in the left-right direction, and the projection of the sealing combination connection groove 4 in the vertical direction is completely located within the area of ​​the flange mating stabilizing groove 3 in the vertical direction. This makes the strength of the inner and outer structures more stable, the mating safety when the inner structure is mated with the bellows is higher, and the overall durability is stronger.

[0025] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements or substitutions can be made without departing from the principle of this utility model, and these improvements or substitutions should also be considered within the protection scope of this utility model.

Claims

1. A leak-proof expansion joint sealing sleeve, comprising a sleeve body mating post (1) with its central axis pointing left and right, the sleeve body mating post (1) being made of metal material, and the central axis of the sleeve body mating post (1) having a cylindrical body assembly hole (2) that passes through the entire sleeve in the left and right direction, characterized in that: The outer side of the sleeve body mating column (1) is a conical structure surface. A conical flange mating stabilizing groove (3) with the same taper is provided on the outer conical structure surface. A conical sealing combination connecting groove (4) with the same central axis is provided on the inner cylindrical surface of the main body assembly combination hole (2). The left and right sides of the sealing combination connecting groove (4) do not penetrate the left and right sides of the sleeve body mating column (1). A conical welding stabilizing mating groove (5) is provided on the left side of the sleeve body mating column (1). The taper of the sealing combination connecting groove (4) is the same as the taper of the flange mating stabilizing groove (3).

2. The leak-proof expansion joint sealing sleeve according to claim 1, characterized in that: The flange fitting stabilizing groove (3) is located at the center of the sleeve body fitting column (1) in the left and right direction.

3. The leak-proof expansion joint sealing sleeve according to claim 1, characterized in that: The width of the flange mating stabilizing groove (3) in the left and right directions is greater than half the length of the sleeve body mating column (1) in the left and right directions.

4. The leak-proof expansion joint sealing sleeve according to claim 1, characterized in that: The left side of the sealing combination connecting groove (4) is a conical structural surface with a taper opposite to that of the sealing combination connecting groove (4).

5. The leak-proof expansion joint sealing sleeve according to claim 1, characterized in that: The width of the sealing combination connection groove (4) in the left-right direction is smaller than the width of the flange mating stabilizing groove (3) in the left-right direction, and the projection of the sealing combination connection groove (4) in the up-down direction is completely located within the area of ​​the flange mating stabilizing groove (3) in the up-down direction.

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