One-hole multi-line sealing device

Abstract

The utility model provides a one-hole multi-line sealing device, which comprises a sealing base, a first sealing ring and a sealing gland, the sealing base comprises a base main body, a mounting part arranged at the top of the base main body, and a first through hole simultaneously penetrating through the base main body and the mounting part; a plurality of first accommodating grooves which are uniformly distributed at intervals in the circumferential direction of the first through hole are formed in the mounting part, are used for accommodating measuring point leads, extend in the radial direction of the first through hole and are communicated with the first through hole and the outer side of the mounting part; a plurality of first annular grooves which are concentric with the first through holes are further formed in the mounting part, and a first sealing ring is embedded in each first annular groove; and the mounting part is detachably connected with the sealing gland. The one-hole multi-line sealing device structure can effectively solve the problem that a traditional sealing structure cannot seal a plurality of measuring points of different specifications in a small space, meanwhile, the sealing device is compact and simple in structure, and production and use cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment technical field especially relates to a one hole multi -wire sealing device. BACKGROUND

[0002] At present, in the related experimental field, some test experiments need to be carried out frequently to verify the rationality of the related theoretical design. In these tests, some problems are often encountered. The most common problems include that when the pressure and temperature test and monitoring are carried out, the hardware of the equipment needs to be deep into the model medium inside through one or more measuring point leads. These measuring point leads such as pressure pipeline will involve a series of sealing problems when entering the container inside. When the pressure and temperature probe is sealed in the conventional container, only a single sensor is usually sealed. When the research demand increases, for example, the designer needs to install multiple measuring point leads in a very small area, the traditional sealing structure cannot meet the demand.

[0003] At present, the sealing form of the measuring point sealing structure has the following kinds: 1. Single hole single line sealing, this sealing form is often used in the environment with less measuring points, higher sealing requirements and smaller space limitation; 2. Traditional single hole multi-line sealing, this kind of sealing is often used in the environment with more measuring points and larger space limitation. These two designs have their own advantages and disadvantages. The single hole single line sealing structure occupies a larger shell surface area, and the traditional single hole multi-line sealing can only be applied to the sealing of the same type of measuring point, and cannot meet the conditions of multiple types of measuring point sealing. Therefore, it is of great significance to design a measuring point sealing structure device with good sealing effect and capable of simultaneously sealing multiple types of measuring points.

[0004] The Chinese invention patent application with the application publication number CN110410050A "One hole multi-line sealing device and method for high pressure probe of thick oil thermal recovery experiment" proposes a one hole multi-line sealing device and method for high pressure probe of thick oil thermal recovery experiment, which can resist temperature up to 1000 DEG C, effectively expands the deep research of formation depth through higher temperature-pressure sealing technology, but is only applicable to the sealing of the same type of measuring point. The Chinese utility model patent with the authorization announcement number CN214999409U "Labyrinth turbine bearing bush temperature measuring point sealing piece" proposes a labyrinth turbine bearing bush temperature measuring point sealing piece, which comprises a mounting base, the top of the mounting base is provided with an elastic extrusion sealing structure, the extrusion sealing structure and the mounting base are provided with a measuring point lead line penetrating through; the measuring point lead line is passed through the extrusion sealing structure and the mounting base, and the extrusion sealing structure is used to compress and compact the measuring point lead line, and oil can only penetrate into the extrusion sealing structure, thereby insulating the oil leakage problem, but this design cannot meet the simultaneous lead sealing of multiple lines. UTILITY MODEL CONTENTS

[0005] The utility model discloses a one-hole multi-wire sealing device, which can meet the sealing requirement of multiple different types of measuring point lead wires in a small space.

[0006] The utility model provides a one-hole multi-wire sealing device, including sealing base, first sealing ring and sealing gland, the sealing base includes base main part, sets up the mounting portion on the top of base main part and the first through -hole that simultaneously penetrates base main part and mounting portion, the mounting portion is opened with a plurality of first accommodating groove that is evenly spaced along the circumference of first through -hole, first accommodating groove is used to accommodate measuring point lead wire, and it extends along the radial direction of first through -hole, and the outside of first through -hole and mounting portion are communicated, still a plurality of first annular groove that is arranged concentrically with first through -hole is opened on the mounting portion, and one first sealing ring is embedded in each first annular groove, the detachable connection between mounting portion and sealing gland.

[0007] Preferably, the base main part is provided with a clamping groove for mounting the base main part.

[0008] Preferably, the outer wall of the base main part is further provided with an NPT thread for sealing connection with a test device.

[0009] Preferably, the mounting portion is provided with two first annular grooves.

[0010] Preferably, the depths of the plurality of first accommodating grooves are the same or different.

[0011] Preferably, further comprising a plurality of wire distribution plates and second sealing rings arranged between the mounting portion and the sealing gland, the wire distribution plates are provided with a second through hole communicating with the first through hole, the wire distribution plates are provided with a plurality of second accommodating grooves evenly spaced along the circumference of the second through hole on one side surface close to the sealing gland, and a plurality of second annular grooves concentrically arranged with the second through hole, the second accommodating grooves extend along the radial direction of the second through hole, and the second through hole and the outside of the wire distribution plate are communicated; each second annular groove is embedded with one second sealing ring.

[0012] Preferably, the wire distribution plate is provided with two second annular grooves.

[0013] Preferably, the depths of the plurality of second accommodating grooves are the same or different.

[0014] Preferably, the mounting portion is further provided with a plurality of first connecting holes, and the first connecting holes are detachably connected with second connecting holes provided on the sealing gland.

[0015] The one-hole multi-wire sealing device structure can effectively solve the difficulty that the traditional sealing structure cannot seal multiple different specification measuring points in a small space, and meanwhile, the sealing device structure is compact and simple, and can reduce production and use costs.

[0016] 1. has a sealing base and several line pressing plates, the sealing base and the line pressing plate are provided with multiple accommodating grooves, the size of the accommodating groove can be customized according to the specific measuring point lead specification, and the sealing requirement of multiple different types of measuring points can be met at the same time;

[0017] 2. The sealing base and the line pressing plate are provided with annular grooves on the surfaces, and sealing rings are installed in the annular grooves, the sealing form increases the reliability of the sealing, and the structure form of the annular groove makes the lead lines of each measuring point independent of each other, which is convenient for sealing and corresponding marking. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the one-hole multi-wire sealing device of the utility model;

[0019] Figure 2 is an exploded view of the one-hole multi-wire sealing device of the utility model;

[0020] Figure 3 is a perspective view of the sealing base;

[0021] Figure 4 is a top view of the sealing pressing cover;

[0022] Figure 5 is a perspective view of the line pressing plate.

[0023] Element number explanation:

[0024] 1 sealing base

[0025] 11 base body

[0026] 111 clamping groove

[0027] 12 mounting portion

[0028] 121 first accommodating groove

[0029] 122 first annular groove

[0030] 123 first connecting hole

[0031] 13 first through hole

[0032] 2 first sealing ring

[0033] 3 sealing pressing cover

[0034] 31 second connecting hole

[0035] 4. Branching plate

[0036] 41 Second Receiving Tank

[0037] 42 Second annular groove

[0038] 43 Third connecting hole

[0039] 44 Second through hole

[0040] 5 Second sealing ring Detailed Implementation

[0041] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] Figure 1 The figure shown is a cross-sectional view of the one-hole multi-line sealing device of this utility model. In the following description, it will be referred to as... Figure 1 The attached diagram serves as a reference for direction. Figure 1 In the view, the direction upward along the paper is called the up direction, the direction downward along the paper is called the down direction, and the direction perpendicular to the up and down directions is defined as the horizontal direction.

[0046] like Figures 1-4The utility model provides a one -hole multi -wire sealing device, this sealing device includes sealing base 1, first sealing ring 2 and sealing gland 3.

[0047] Sealing base 1 includes base body 11, installation portion 12 being arranged at the top of base body 11 and the first through -hole 13 being penetrated through base body 11 and installation portion 12 simultaneously.

[0048] The top surface of installation portion 12 is opened with a plurality of first accommodating grooves 121 being uniformly spaced along the circumference of first through -hole 13, each first accommodating groove 121 extends along the radial direction of first through -hole 13 and is communicated with first through -hole 13 and the outside of installation portion 12, and a plurality of first annular grooves 122 concentrically arranged with first through -hole 13 are also opened on installation portion 12, first annular groove 122 is communicated with first accommodating groove 121, and one first sealing ring 2 is embedded in each first annular groove 122.

[0049] The detachable connection form between installation portion 12 and sealing gland 3 is not limited, and can be matched by buckle and slot or bolted connection.

[0050] The working principle of the utility model is as follows:

[0051] When the sealing device is used to seal multiple measuring points, first, multiple measuring point leads are led out from first through -hole 13, then a torque wrench is used to clamp the clamping groove 111 on the sealing base 1 to fix the sealing base 1 on the corresponding shell or connector. The multiple measuring point leads are straightened, then one measuring point lead is embedded in each first accommodating groove 121, and one first sealing element 2 is installed in each first annular groove 122, at this time, the first sealing element 2 is located above the measuring point lead. Finally, multiple bolts are respectively inserted into the first connecting hole 123 and the second connecting hole 31 to tightly cover the sealing gland 3 on the installation portion 12, and in the process of bolt fastening, the first sealing element 2 continuously extrudes the measuring point lead to block the gap between the measuring point lead and the first accommodating groove 121, thereby realizing the sealing of multiple measuring points.

[0052] The skilled in the art can select the specific number and size of the first accommodating grooves 121 and the first annular grooves 122 according to the needs. The depths of the plurality of first accommodating grooves 121 can be the same or different, and can be customized according to the type of the measuring point lead, so as to realize the installation and sealing of various types of measuring points. When the plurality of first annular grooves 122 are opened on the mounting portion 12, the centers of the plurality of first annular grooves 122 are at the same position, but the radii are different. The number of the first sealing members 2 is the same as the number of the first annular grooves 122, and they are arranged one by one. The material of the first sealing member 2 can be selected according to the use environment, such as rubber. Specifically, two first annular grooves 122 are opened on the mounting portion 12.

[0053] In order to maximize the use of space, the sealing device provided by the utility model can be a multi-layer structure in addition to the single-layer structure described above. As shown in Figures 1-2 and Figure 5 In a specific embodiment of the utility model, a plurality of wire distribution pressing plates 4 and second sealing rings 5 are arranged between the mounting portion 12 and the sealing gland 3. The wire distribution pressing plate 4 is provided with a second through hole 44 communicating with the first through hole 13, and a plurality of second accommodating grooves 41 and a plurality of second annular grooves 42 are uniformly and spacedly arranged on the side surface (i.e. the top surface) of the wire distribution pressing plate 4 close to the sealing gland 3 in the circumferential direction of the second through hole 44. The second accommodating grooves 41 extend in the radial direction of the second through hole 44, and are used to communicate the second through hole 44 and the outside of the wire distribution pressing plate 4. One second sealing ring 5 is arranged in each second annular groove 42. Further, a third connecting hole 43 is arranged on the outer periphery of the wire distribution pressing plate 4, and the third connecting hole 43 is connected with the first connecting hole 123 and the second connecting hole 31 respectively.

[0054] The working principle of the multi-layer structure is as follows:

[0055] When the sealing device is used to seal multiple measuring points, first, multiple first measuring point leads are led out from the first through hole 13, then a torque wrench is clamped on the clamping groove 111 on the sealing base 1 to fix the sealing base 1 on the corresponding shell or connector. The multiple first measuring point leads are straightened, and then a first sealing member 2 is installed in each first annular groove 122, at this time, the first sealing member 2 is located above the first measuring point leads. The wire distribution plate 4 is placed on the mounting portion 12, multiple second measuring point leads are led out from the second through hole 44 and the first through hole 13, then a second measuring point lead is embedded in each second accommodating groove 41, and then a second sealing member 5 is installed in each second annular groove 42, at this time, the second sealing member 5 is located above the second measuring point leads. Finally, multiple bolts are sequentially inserted into the first connecting hole 123, the third connecting hole 43 and the second connecting hole 31, so that the sealing gland 3 is tightly covered on the wire distribution plate 4, and the wire distribution plate 4 is tightly covered on the mounting portion 12. During the tightening process of the bolts, the first sealing member 2 continuously extrudes the first measuring point leads to block the gap between the first measuring point leads and the first accommodating groove 121; the second sealing member 5 continuously extrudes the second measuring point leads to block the gap between the second measuring point leads and the second accommodating groove 41. In addition to being able to seal and lead out different types of measuring points, the multi-layer sealing device occupies less space, so it can better meet the needs of multiple measuring points in a small space.

[0056] Similarly, a person skilled in the art can select the specific number and size of the second accommodating groove 41 and the second annular groove 42 as needed. The depths of the multiple second accommodating grooves 41 can be the same or different, and can be customized according to the type of measuring point lead, thereby achieving the installation and sealing of multiple different types of measuring points. When the wire distribution plate 4 has multiple second annular grooves 42, the centers of the multiple second annular grooves 42 are at the same position, but each has a different radius. The number of second sealing members 5 is the same as the number of second annular grooves 42, and they are arranged one-to-one. The material of the second sealing member 5 can be selected according to the use environment, such as rubber. Specifically, the wire distribution plate 4 has two second annular grooves 42.

[0057] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should also be considered as the protection range of the present application.

Claims

1. A one-hole multi-wire sealing device, characterized by, The sealing base, the first sealing ring and the sealing gland, the sealing base comprises a base body, a mounting portion arranged on the top of the base body, and a first through hole penetrating through the base body and the mounting portion; a plurality of first accommodating grooves are arranged on the mounting portion and uniformly distributed along the circumference of the first through hole, the first accommodating grooves are used for accommodating measuring point leads which extend along the radial direction of the first through hole and communicate the first through hole with the outside of the mounting portion; a plurality of first annular grooves are arranged on the mounting portion and concentric with the first through hole, and one first sealing ring is arranged in each first annular groove; and the mounting portion is detachably connected with the sealing gland.

2. The one-hole multi-wire sealing device according to claim 1, wherein, The base body is provided with a clamping groove for mounting the base body.

3. The one-hole multi-wire sealing device of claim 1, wherein, An NPT thread is arranged on the outer wall of the base body and used for sealing connection with a test device.

4. The one-hole multi-wire sealing apparatus according to claim 1, wherein Two first annular grooves are arranged on the mounting portion.

5. The one-hole multi-wire sealing apparatus according to claim 1, wherein The depths of the plurality of first accommodating grooves are the same or different.

6. The one-hole multi-wire sealing apparatus according to claim 1, wherein A plurality of wire distribution pressing plates and second sealing rings are arranged between the mounting portion and the sealing gland, the wire distribution pressing plates are provided with a second through hole communicating with the first through hole, a plurality of second accommodating grooves are arranged on the side of the wire distribution pressing plate close to the sealing gland and uniformly distributed along the circumference of the second through hole, the second accommodating grooves extend along the radial direction of the second through hole and are used for communicating the second through hole with the outside of the wire distribution pressing plate, and a plurality of second annular grooves are arranged on the side of the wire distribution pressing plate close to the sealing gland and concentric with the second through hole, and one second sealing ring is arranged in each second annular groove.

7. The one-hole multi-wire sealing apparatus according to claim 6, wherein Two second annular grooves are arranged on the wire distribution pressing plate.

8. The one-hole multi-wire sealing apparatus according to claim 6, wherein The depths of the plurality of second accommodating grooves are the same or different.

9. The one-hole multi-wire sealing apparatus according to claim 1, wherein A plurality of first connecting holes are arranged on the mounting portion, and the first connecting holes are detachably connected with second connecting holes arranged on the sealing gland.

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