Multi-tooth-shaped sealing element for sleeve type connection

Abstract

The utility model provides a multi-tooth-shaped sealing element for sleeve type connection, which comprises a body extending along the length direction of the sealing element; the body is provided with a first matching surface, the first matching surface is provided with a groove part, and the groove part extends in the length direction; a rack part is arranged on the back side of the first matching surface, the rack part comprises a plurality of parallel racks, the roots of the racks are continuously connected, and the racks extend in the length direction; the front side, facing the sealing piece, of the rack is a first inclined face, the rear side, facing the sealing piece, of the rack is a second inclined face, and the included angle alpha between the first inclined face and the plane where the first matching face is located is larger than the included angle beta between the second inclined face and the plane where the first matching face is located. The sealing piece is not prone to displacement after being installed, large in deformation capacity, small in thickness after being installed and compressed, not prone to rolling and twisting in the using process, not prone to sealing failure and the like, long in service life and capable of facilitating pipeline inserting installation and preventing a pipeline from disengaging due to the fact that the racks are obliquely arranged.

Description

Technical Field

[0001] The utility model belongs to the technical field related to pipeline sealing, and in particular relates to a multi-tooth sealing component for sleeve type connection. Background Art

[0002] Sealing strips / rings are commonly used components for flexible connections between pipes to seal, prevent leakage, and achieve quick connections. When a sleeve is connected to a pipe, a sealing strip / ring must be installed between the inside of the sleeve and the outside of the pipe to achieve a sealed connection. During the installation and use of the pipe, the pipe may move relative to the sleeve. Existing sealing strips / rings are prone to displacement or rolling and twisting, which can easily cause poor sealing or even leakage. In addition, in order to ensure a good seal between the sleeve and the pipe, existing sealing rings are often thicker to ensure their sealing effect. During the design, the outer diameter of the pipe and the inner diameter of the sleeve differ greatly, that is, the gap between the sleeve and the pipe is large, which will affect the stability of the pipe connection; and as the use time increases, the sealing ring material ages, and its own deformation ability decreases, which can easily cause sealing failure. Utility Model Content

[0003] In view of the defects of the above-mentioned prior art, the utility model provides a multi-tooth seal for a sleeve type connection. The seal is not easy to shift after installation, has a large deformation capacity, a small thickness after installation and compression, is not easy to roll over and twist during use, is not easy to fail in sealing, has a long service life, and its rack is inclined, which facilitates the installation of pipe plug-in and prevents the pipe from falling out.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A multi-tooth seal for a sleeve type connection, comprising:

[0006] A body extending along the length direction of the seal;

[0007] The body has a first mating surface, the first mating surface is provided with an inwardly concave groove portion, and the groove portion extends along the length direction of the sealing member;

[0008] The main body is provided with a rack portion on the back side of the first mating surface, the rack portion includes a plurality of parallel racks which are continuously connected at the root, and the racks extend along the length direction of the seal;

[0009] The rack is tilted, with the front side of the seal being the first slope and the rear side of the seal being the second slope, and the angle α between the first slope and the plane where the first mating surface is located is greater than the angle β between the second slope and the plane where the first mating surface is located.

[0010] In one embodiment of the present application, the front side of the seal is connected to the first mating surface and the rack portion via a first slope portion; the rear side of the seal is connected to the first mating surface and the rack portion via a second slope portion; the first slope portion and the second slope portion are inclined and close to the rack portion.

[0011] In one embodiment of the present application, the cross-section of the groove portion is a trapezoidal structure, the parallel long sides of the trapezoidal structure are the bottom of the groove portion, and the parallel short sides are openings.

[0012] In one embodiment of the present application, the groove portion includes two groove portions, and the two groove portions are arranged in parallel;

[0013] And / or, the bottom surface and the side surface, and the side surface and the first matching surface of the groove portion are all connected in a smooth transition.

[0014] In one embodiment of the present application, the top of the rack and the root of the adjacent rack are connected by a smooth transition.

[0015] In one embodiment of the present application, the rack portion includes at least 4 racks, the distances from the roots of all the racks to the first mating surface increase from the front side to the rear side, and the heights of all the racks increase from the front side to the rear side.

[0016] In one embodiment of the present application, the rack parts include two, and the two rack parts are connected via a transition plane.

[0017] In one embodiment of the present application, the racks in the two rack parts have the same size, and the width of the transition plane is equal to the width of one rack.

[0018] In one embodiment of the present application, the number of racks in the two rack parts is equal, namely 3, 4 or 5.

[0019] In one embodiment of the present application, the angle β is greater than 90°;

[0020] And / or, when the sealing member is disposed in the sleeve, the front side of the sealing member is disposed close to the proximal end port on the sleeve.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model discloses a multi-tooth seal for sleeve type connection, in which a concave groove portion is arranged on a first mating surface, and a protruding rack portion is arranged on an opposite side, and is suitable for sealing connection between a sleeve and a pipe, etc.; when in use, the first mating surface cooperates with the inner side of the sleeve, can fit the sleeve well, and is not easy to shift when the pipe is plugged in and used; the rack portion is provided with multiple racks, and cooperates with the groove portion, which can effectively increase the deformation capacity of the seal, so that the thickness of the seal is thinner after compression, and multiple racks form a multi-channel sealing structure, the sealing effect is better, and the problem of sealing failure is not easy to occur; multiple racks are arranged, and the racks are arranged at an angle, so that the pipe is easier to plug and install, and is not easy to fall out after installation, and the installation structure is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a structural schematic diagram of the cross-section of a multi-tooth seal for a sleeve type connection in Example 2 of the present application.

[0025] Figure 2 This is a structural schematic diagram of the cross-section of a multi-tooth seal (annular structure) for a sleeve-type connection in Example 2 of the present application.

[0026] Figure 3 This is a structural schematic diagram of the cross-section of a multi-tooth seal for a sleeve type connection in Example 3 of the present application.

[0027] Figure 4 This is a structural schematic diagram of the cross-section of a multi-tooth seal (annular structure) for a sleeve-type connection in Example 3 of the present application.

[0028] Figure 5 This is a schematic diagram of the structure of the compression deformation of the multi-tooth seal for the sleeve type connection in Example 3.

[0029] Figure 6 It is a schematic diagram of the assembly structure of the seal, sleeve and pipe.

[0030] Reference numerals:

[0031] 1. first matching portion; 11. groove portion;

[0032] 2. rack; 20. rack portion; 21. first inclined surface; 22. second inclined surface;

[0033] 3. The first slope surface;

[0034] 4. The second slope surface;

[0035] 5. Transition plane;

[0036] 6. Sleeve;

[0037] 7. Pipeline. DETAILED DESCRIPTION

[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0039] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0043] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings. Example

[0044] like Figures 1 to 6 As shown, the embodiment of the utility model provides a multi-tooth seal for a sleeve type connection, which is suitable for the sealing connection between a sleeve and a pipe, and of course can also be used for the sealing connection of other cylindrical plug-in structures.

[0045] The multi-tooth seal for sleeve type connection comprises a body, which extends along the length direction of the seal and can be a strip-shaped or ring-shaped structure.

[0046] One side of the body is a first mating surface 1. When the body is an annular structure, the first mating surface 1 can be located on the outside of the annular structure or on the inside of the annular structure. The first mating surface 1 is provided with a groove portion 11 recessed toward the inside of the body, and the groove portion 11 extends along the length direction of the seal, that is, along the length direction of the body.

[0047] A rack portion 20 is provided on the back side of the first mating surface 1 on the main body, that is, a rack portion 20 is provided on the other side of the main body corresponding to the first mating surface 1. The rack portion 20 includes a plurality of racks 2, and the racks 2 extend along the length direction of the seal; the plurality of racks 2 in the rack portion 20 are parallel to each other and are continuously connected at the root.

[0048] Among them, all racks 2 are inclined, and the first inclined surface 21 is facing the front side of the seal, and the second inclined surface 22 is facing the rear side of the seal. The inclination angle of the first inclined surface 21 is greater than the inclination angle of the second inclined surface 22. That is, the angle between the first inclined surface 21 and the plane where the first mating surface 1 is located is angle α, and the angle between the second inclined surface 22 and the plane where the first mating surface 1 is located is angle β, and the angle β is greater than angle α. The first inclined surface 21 with a larger inclination angle faces the front side of the seal, which can reduce the plug-in resistance during plug-in installation and make the seal installation easier; while the second inclined surface 22 with a smaller inclination angle faces the rear side of the seal, making it more difficult for the rack 2 to deform and move toward the front side of the seal, so that the pipe is not easy to fall out during installation and use, and the installed sealing structure is more stable.

[0049] Preferably, the angle β is greater than 90°, and can be controlled within the range of 95° to 110°. The angle α is preferably within the range of 110° to 135°. Setting the angle β to be greater than 90° can effectively prevent the rack 2 from collapsing when squeezed, and can achieve a better sealing effect.

[0050] Furthermore, a first slope portion 3 is provided on the front side of the seal, and a second slope portion 4 is provided on the rear side of the seal. The first slope portion 3 is connected to the first matching portion 1 on one side, and connected to the rack portion 20 on the other side, specifically connected to the root of the first slope 21 of the front rack 2 in the rack portion 20. The second slope portion 4 is connected to the first matching portion 1 on one side, and connected to the rack portion 20 on the other side, specifically connected to the root of the second slope portion 22 of the rear rack 2 in the rack portion 20. The width of the rack portion 20 is smaller than the width of the first slope portion 3, and the first slope portion 3 and the second slope portion 4 are arranged to be inclined and close to the rack portion 20. The front and rear sides of the seal are arranged to form the first slope portion 3 and the second slope portion 4 close to the middle, so that the overall cross-section of the seal is a trapezoidal structure, and when subjected to a squeezing force from the front side to the rear side or from the rear side to the front side, it is easier to maintain the overall basic shape and is not prone to twisting and rolling deformation.

[0051] Preferably, the cross section of the groove portion 11 is a trapezoidal structure or a quasi-trapezoidal structure, the parallel long sides (i.e., bottom sides) of the trapezoidal structure are the bottom of the groove portion 11, and the parallel short sides (i.e., top sides) are the opening of the groove portion 11. The groove portion 11 is configured to have a larger groove and a smaller opening, so that the seal has better deformation ability, stronger grip, and is not easily displaced.

[0052] In one embodiment, Figure 2 , Figure 4 and Figure 6 As shown, when the seal is disposed in the sleeve 6 , the front side of the seal (ie, the first slope side 3 ) is disposed close to the port on the proximal end of the sleeve 6 .

[0053] When used for assembling the sleeve 6 to connect the pipe 7, the seal can be first installed at the corresponding position in the sleeve 6, with the first mating surface 1 mating with the inner side of the sleeve 6, and the front side of the seal facing the outside of the sleeve 6, and then the pipe 7 is inserted into the sleeve 6 to connect and fix and achieve sealing.

[0054] The seal is stable to install, is not prone to rolling and twisting during installation and use, is not prone to sealing failure, has a long service life, and is an integrated molding structure, which is easy to produce and prepare. Example

[0055] like Figure 1 and Figure 2 As shown, this embodiment provides a multi-tooth seal for sleeve type connection, which, based on the embodiment 1, has two grooves 11, which are arranged in parallel and extend along the length direction of the body. Of course, the grooves 11 can also include more grooves.

[0056] The connection between the bottom surface and the side surface of the groove portion 11 and the connection between the side surface and the first matching surface are all smoothly transitioned.

[0057] The rack portion 20 includes a rack 2 in which the top of the rack 2 and the root connection of the adjacent rack 2 are both smoothly transitioned.

[0058] The rack part 20 includes at least 4 racks 2, and the distances from the roots of all racks 2 to the first mating surface 1 increase from the front side to the rear side, and the heights of all racks 2 also increase from the front side to the rear side. That is, the seal gradually thickens from the right front side to the rear side. The front side of the rack 2 is short and the rear side is high, and the front side of the seal is thin and the rear side is thick, which can facilitate plug-in installation, and the seal can be well kept stable when being squeezed from the front to the rear without rolling and twisting. Example

[0059] like Figures 3 to 6 As shown, this embodiment provides a sleeve-type multi-tooth seal, which is based on the embodiment 1, and has two rack parts 20, which are connected and transitioned via the transition plane 5. There is one groove part 11, which is centrally arranged on the first mating surface 1.

[0060] Preferably, the sizes of the racks 2 in the two rack parts 20 are basically the same, and the width of the transition plane 5 is roughly equal to the width of one rack 2, which can well achieve the spacing between the two sealing parts without causing the two sealing parts to lose connection due to excessive distance, that is, the integrity of the seal can be well maintained.

[0061] Further preferably, the number of racks 2 in the two sealing parts 20 is equal, which can be 3, 4 or 5 racks.

[0062] Providing two rack parts 20 can effectively reduce the size of the sealing member while ensuring a good sealing effect.

Claims

1. A multi-tooth seal for a sleeve type connection, characterized in that: include: A body extending along the length direction of the seal; The body has a first mating surface (1), the first mating surface (1) is provided with an inwardly concave groove portion (11), and the groove portion (11) extends along the length direction of the sealing element; The main body is provided with a rack portion (20) on the back side of the first mating surface (1), the rack portion (20) comprising a plurality of racks (2) which are arranged in parallel and continuously connected at their roots, and the racks (2) extend along the length direction of the seal; The rack (2) is arranged to be inclined, with a first inclined surface (21) facing the front side of the seal and a second inclined surface (22) facing the rear side of the seal, and an angle α between the first inclined surface (21) and the plane where the first mating surface (1) is located is greater than an angle β between the second inclined surface (22) and the plane where the first mating surface (1) is located.

2. The multi-tooth seal for sleeve type connection according to claim 1, characterized in that: The front side of the seal is connected to the first mating surface (1) and the rack portion (20) via a first slope portion (3); the rear side of the seal is connected to the first mating surface (1) and the rack portion (20) via a second slope portion (4); the first slope portion (3) and the second slope portion (4) are arranged to be inclined and close to the rack portion (20).

3. The multi-tooth seal for sleeve type connection according to claim 2, characterized in that: The cross section of the groove portion (11) is a trapezoidal structure, the parallel long sides of the trapezoidal structure are the bottom of the groove portion (11), and the parallel short sides are openings.

4. The multi-tooth seal for sleeve type connection according to claim 3, characterized in that: The groove portion (11) comprises two groove portions, and the two groove portions (11) are arranged in parallel; And / or, the bottom surface and the side surface of the groove portion (11), and the side surface and the first matching surface (1) are all connected in a smooth transition.

5. The multi-tooth seal for sleeve type connection according to claim 4, characterized in that: The top of the rack (2) and the root of the adjacent rack (2) are both connected in a smooth transition.

6. The multi-tooth seal for sleeve type connection according to claim 5, characterized in that: The rack portion (20) comprises at least four racks (2), the distances from the roots of all the racks (2) to the first mating surface (1) increasing from the front side to the rear side, and the heights of all the racks (2) increasing from the front side to the rear side.

7. The multi-tooth seal for sleeve type connection according to claim 3, characterized in that: The rack parts (20) include two rack parts (20), and the two rack parts (20) are connected via a transition plane (5).

8. The multi-tooth seal for sleeve type connection according to claim 7, characterized in that: The racks (2) in the two rack parts (20) have the same size, and the width of the transition plane (5) is equal to the width of one rack (2).

9. The multi-tooth seal for sleeve type connection according to claim 8, characterized in that: The number of racks (2) in the two rack parts (20) is equal, namely 3, 4 or 5.

10. The multi-tooth seal for sleeve type connection according to claim 1, characterized in that: The angle β is greater than 90°; And / or, when the sealing member is arranged in the sleeve (6), the front side of the sealing member is arranged close to the proximal end port on the sleeve (6).

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