Pipe body connecting structure

Abstract

The utility model discloses a pipe body connecting structure which comprises a connecting sleeve, a first connecting piece, a second connecting piece, a first filtering piece and a second filtering piece, the first filtering piece and the second filtering piece respectively comprise a plurality of filter screens which are arranged in a stacked mode, magnetic pieces are distributed among the filter screens, and a plurality of filtering holes are formed in the filter screens. And the plurality of filter screens are not fixedly arranged. The pipe body connecting structure can solve the field installation problems such as non-standard accessory specifications and long installation time, is good in firmness and sealing performance, does not need welding, avoids welding defects, and facilitates field installation; the pipe body connecting structure can be used for conveying various fluids such as liquid and gas, is high in conveying speed, free of pollution and small in occupied space, is provided with the first filtering part and the second filtering part so as to achieve the filtering function of the pipe body connecting structure, and can adapt to installation of more environments with different sizes through the flange part.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a pipe body connection structure. Background Art

[0002] Traditional pipe connections are made through threaded connections or flange welding. Among them, the pipe wall of the pipe using the threaded connection method must reach the thickness required by the national standard before the thread can be made. Therefore, the weight of traditional pipes of the same specification is many times the weight of the flanged connection pipe, the economic cost is high, and the threads need to be made on site, the installation period is long, the labor intensity is high, and it is not easy to disassemble; while the flange welding connection method is used, the pipe wall must also reach the thickness required by the national standard before it is welded into shape, so there is also a disadvantage that the weight is many times the weight of the flanged connection pipe, and the pipe must be welded on site, the working hours are long, the efficiency is low, the labor intensity is high, the smoke generated during the welding process is also harmful to the human body, the installation is slow, and the disassembly is inconvenient. At the same time, the pipe can be used in various industries to transport liquids or gases, and foreign matter may exist in the liquid or gas, and the traditional pipe lacks filtering function. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pipe body connection structure.

[0004] The technical solution adopted by the utility model to solve the technical problem is: constructing a pipe body connection structure, which includes a connecting sleeve, a first connecting piece, a second connecting piece, a first filter piece and a second filter piece;

[0005] The connecting sleeve has a first end and a second end which are arranged opposite to each other. The first end of the connecting sleeve is provided with a first installation groove for installing the first filter element. The first connecting element is installed in the first installation groove and fixes and presses the first filter element.

[0006] A second installation groove for installing the second filter element is provided on the second end of the connecting sleeve, and the second connecting element is installed in the second installation groove to fix and press the second filter element;

[0007] The first filter element and the second filter element both include a plurality of stacked filter screens, magnetic elements are distributed between the filter screens, and a plurality of filter holes are provided on the filter screens, and the filter screens are not fixedly arranged.

[0008] In some embodiments, the tube body connection structure further includes a flange, the connecting sleeve includes a sleeve body, a locking portion connected to the sleeve body and arranged on the first end of the connecting sleeve, and the locking portion is provided with the first installation groove.

[0009] In some embodiments, the flange member is provided with a through hole for the sleeve body to pass through and a receiving groove located below the through hole and used for the locking portion to be installed. The through hole is connected to the receiving groove, and the diameter of the through hole is smaller than the diameter of the receiving groove.

[0010] In some embodiments, the flange member includes a first flange docking member and a second flange docking member that are clamped together.

[0011] In some embodiments, a first connecting through hole is formed on the flange, and a second connecting through hole matching the first connecting through hole is formed on the first connecting member;

[0012] A third connecting through hole is provided on the second end of the connecting sleeve, and a fourth connecting through hole matching the third connecting through hole is provided on the second connecting member.

[0013] In some embodiments, the tube body connection structure further includes a tube body, a multi-toothed retaining spring, a gasket and a sealing ring;

[0014] The first connecting member and the second connecting member are provided with positioning steps and limiting steps in sequence along the direction of the inner part toward the open end; the positioning steps are used to position the tube body, and the multi-tooth retaining spring, gasket and sealing ring are installed on the limiting steps in sequence.

[0015] In some embodiments, the tube body connection structure further includes a fixing member, which is connected to the first connecting member or the second connecting member, the fixing member abuts against the sealing ring, and the fixing member is provided with a communicating hole for the tube body to pass through.

[0016] In some embodiments, the fixing member is threadedly connected to the first connecting member or the second connecting member.

[0017] In some embodiments, the multi-toothed retaining spring includes a retaining spring body and a plurality of retaining teeth integrally formed with the retaining spring body, and the plurality of retaining teeth are evenly arranged along the circumferential direction of the retaining spring body.

[0018] In some embodiments, the latch tooth is tilted relative to the retaining spring body, the tilt angle between the latch tooth and the retaining spring body is 30 degrees, and the latch tooth faces in the direction of the fixing member facing the connecting sleeve.

[0019] The implementation of the utility model has the following beneficial effects: the pipe body connection structure can solve on-site installation problems, such as non-standard accessory specifications and long installation time, has good firm sealing, does not require welding, avoids welding defects, and facilitates on-site installation; it can be used to transport various liquids, gases and other fluids, with fast transportation speed, no pollution, and does not take up space; a first filter element and a second filter element are provided to realize the filtering function of the pipe body connection structure; the use of flanges can adapt to the installation of more environments of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the pipe body connection structure in some embodiments of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the connecting sleeve in some embodiments of the utility model;

[0023] Figure 3 is a schematic structural diagram of a first connecting member in some embodiments of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of flanges in some embodiments of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of a multi-tooth retaining spring in some embodiments of the utility model. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0027] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0028] See also Figures 1 to 5 , is a pipe body connection structure in some embodiments of the utility model, which includes a connecting sleeve 1, a first connecting member 2, a second connecting member 3, a first filter 4 and a second filter 5. The connecting sleeve 1 has a first end and a second end that are arranged opposite to each other. The first end of the connecting sleeve 1 is provided with a first installation groove 11 for installing the first filter 4. The first connecting member 2 is installed in the first installation groove 11 and fixes and presses the first filter 4; the second end of the connecting sleeve 1 is provided with a second installation groove 12 for installing the second filter 5. The second connecting member 3 is installed in the second installation groove 12 and fixes and presses the second filter 5. The connecting sleeve 1 is a middle-through structure, which can be straight-through or curved.

[0029] In addition, the first filter element 4 and the second filter element 5 both include a plurality of stacked filter screens, magnetic elements are arranged between the filter screens, and a plurality of filter holes are arranged on the filter screens, which are not fixedly arranged between the filter screens. The stacked and not fixed filter screens, combined with the filter holes, can filter some impurities with larger particles, reduce the amount of impurities entering another pipe, and the magnetic element can absorb metal impurities in the fluid, thereby realizing the filtering function of the pipe body connection structure.

[0030] Furthermore, the pipe body connection structure also includes a flange 6, and the connecting sleeve 1 includes a sleeve body 14, a clamping portion 15 connected to the sleeve body 14 and arranged on the first end of the connecting sleeve 1, and the clamping portion 15 is provided with the above-mentioned first installation groove 11. The flange 6 is provided with a through hole 61 for the sleeve body 14 to pass through, and a receiving groove 62 located at the lower part of the through hole 61 and used for the installation of the clamping portion 15, the through hole 61 is connected with the receiving groove 62, and the diameter of the through hole 61 is smaller than the diameter of the receiving groove 62. The connecting sleeve 1 can be connected to pipe bodies 71 of different sizes, and one end of the flange 6 can be connected to a pipe body 71 of a larger size.

[0031] More specifically, the flange member 6 includes a first flange docking member 63 and a second flange docking member 64 that are clamped together, so that the flange member 6 and the connecting sleeve 1 are easily installed.

[0032] Among them, the flange 6 is provided with a first connecting through hole 65, and the first connecting member 2 is provided with a second connecting through hole 25 matched with the first connecting through hole 65; the second end of the connecting sleeve 1 is provided with a third connecting through hole 13, and the second connecting member 3 is provided with a fourth connecting through hole 31 matched with the third connecting through hole 13. It can be understood that two connection schemes are provided in this embodiment, one is to connect the connecting sleeve 1 with the first connecting member 2 by adding the flange 6, and the second is to directly open a hole on the connecting sleeve 1 to directly connect with the second connecting member 3. The two connection schemes can be adjusted according to different specifications and models of the pipe body 71 and the on-site working conditions.

[0033] The pipe body connection structure also includes a pipe body 71, a multi-toothed snap ring 72, a gasket 73 and a sealing ring 74. The first connecting member 2 and the second connecting member 3 are provided with a positioning step 22 and a limiting step 23 in sequence along the direction from the inside thereof toward the open end; the positioning step 22 is used to position the pipe body 71, and the multi-toothed snap ring 72, the gasket 73 and the sealing ring 74 are sequentially installed on the limiting step 23. The pipe body connection structure also includes a fixing member 75, which is connected to the first connecting member 2 or the second connecting member 3, the fixing member 75 abuts against the sealing ring 74, and the fixing member 75 is provided with a through hole 751 for the pipe body 71 to pass through.

[0034] It can be understood that the positioning step 22 is used to position the axial end face of the tube body 71. The tube body 71 can be inserted into the through hole 751 of the fixing member 75 to be inserted into the first connecting member 2 or the second connecting member 3. When the tube body 71 is inserted into the first connecting member 2 or the second connecting member 3, the axial end face of the tube body 71 will abut against the positioning step 22, and when the tube body 71 moves back, it will be locked and clamped by the multi-tooth retaining spring 72, thereby completing the locking connection between the tube body 71 and the first connecting member 2 or the second connecting member 3.

[0035] Furthermore, the fixing member 75 is threadedly connected to the first connecting member 2 or the second connecting member 3. After the sealing ring 74 is installed, the fixing member 75 is screwed to compress the sealing ring 74. When maintenance or replacement of parts is required, the fixing member 75 can be screwed to loosen. After the fixing member 75 is fixedly connected, the pipe body 71 can be directly plugged in for connection.

[0036] In addition, the multi-toothed retaining spring 72 includes a retaining spring body 721 and a plurality of retaining teeth 722 integrally formed with the retaining spring body 721, and the plurality of retaining teeth 722 are evenly arranged along the circumferential direction of the retaining spring body 721. The retaining teeth 722 are tilted relative to the retaining spring body 721, and the tilt angle between the retaining teeth 722 and the retaining spring body 721 is 30 degrees. This tilt angle can be set according to actual assembly requirements and is not specifically limited here. The retaining teeth 722 face in the direction of the flange toward the connection base, so that the first tube body 71 can be locked and clamped by the multi-toothed retaining spring 72 when it is reversed.

[0037] The gasket 73 may be a positioning pressing piece, which can be used to compress the multi-toothed retaining spring 72. The gasket 73 is in a circular ring shape and may be made of an engineering polymer composite material to ensure that it has sufficient rigidity to compress the multi-toothed retaining spring 72. The sealing ring 74 is in a circular ring shape and may be made of EPDM rubber. The sealing ring 74 abuts against the gasket 73 to perform a sealing function.

[0038] The specific installation steps of the connecting pipe structure are:

[0039] 1. Install the filter element on the first installation groove 11 and the second installation groove 12, and then use the first connecting member 2 and the second connecting member 3 to connect and press the filter element to complete the positioning and fixing of the filter element;

[0040] 2. Install the multi-toothed retaining ring 72, the gasket 73, and the sealing ring 74 in sequence on the positioning step of the above-mentioned connecting member of the connecting base, and use the fixing member 75 to connect and press the sealing ring 74;

[0041] 3. Insert the tube body 71 of the matching specification into the connector. At this time, the multi-toothed clamping spring 72 locks and clamps the tube body 71 when the tube body 71 moves back.

[0042] The beneficial effects of the pipe body connection structure are:

[0043] 1. It can solve on-site installation problems, such as non-standard accessories and long installation time;

[0044] 2. Strong and good sealing, no need for welding, avoiding welding defects and facilitating on-site installation;

[0045] 3. It can be used to transport various liquids, gases and other fluids with fast transportation speed, no pollution and small space;

[0046] 4. A first filter element 4 and a second filter element 5 are provided to realize the filtering function of the pipe body connection structure;

[0047] 5. The flange 6 can be used to adapt to installation in environments of more different sizes.

[0048] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A pipe connection structure, characterized in that: It comprises a connecting sleeve (1), a first connecting member (2), a second connecting member (3), a first filter member (4) and a second filter member (5); The connecting sleeve (1) has a first end and a second end arranged opposite to each other, the first end of the connecting sleeve (1) is provided with a first mounting groove (11) for mounting the first filter element (4), the first connecting element (2) is mounted in the first mounting groove (11) and fixes and presses the first filter element (4); A second installation groove (12) for installing the second filter element (5) is provided on the second end of the connecting sleeve (1), and the second connecting element (3) is installed in the second installation groove (12) to fix and press the second filter element (5); The first filter element (4) and the second filter element (5) both comprise a plurality of stacked filter screens, magnetic elements are arranged between the filter screens, and a plurality of filter holes are arranged on the filter screens, which are not fixedly arranged.

2. The pipe body connection structure according to claim 1, characterized in that: The pipe body connection structure also includes a flange (6), and the connecting sleeve (1) includes a sleeve body (14), a locking portion (15) connected to the sleeve body (14) and arranged on the first end of the connecting sleeve (1), and the locking portion (15) is provided with the first installation groove (11).

3. The pipe connection structure according to claim 2, characterized in that: The flange member (6) is provided with a through hole (61) for the sleeve body (14) to pass through, and a receiving groove (62) located below the through hole (61) and used for installing the locking portion (15). The through hole (61) is connected to the receiving groove (62), and the diameter of the through hole (61) is smaller than the diameter of the receiving groove (62).

4. The pipe connection structure according to claim 2, characterized in that: The flange member (6) comprises a first flange docking member (63) and a second flange docking member (64) which are clamped together.

5. The pipe body connection structure according to claim 2, characterized in that: The flange member (6) is provided with a first connecting through hole (65), and the first connecting member (2) is provided with a second connecting through hole (25) matched with the first connecting through hole (65); A third connecting through hole (13) is provided on the second end of the connecting sleeve (1), and a fourth connecting through hole (31) matching with the third connecting through hole (13) is provided on the second connecting member (3).

6. The pipe connection structure according to claim 1, characterized in that: The pipe body connection structure also includes a pipe body (71), a multi-toothed clamping spring (72), a gasket (73) and a sealing ring (74); The first connecting member (2) and the second connecting member (3) are provided with a positioning step (22) and a limiting step (23) in sequence along the direction of the inside toward the open end; the positioning step (22) is used to position the tube body (71), and the multi-tooth retaining spring (72), the gasket (73) and the sealing ring (74) are installed in sequence on the limiting step (23).

7. The pipe body connection structure according to claim 6, characterized in that: The tube body connection structure also includes a fixing member (75), the fixing member (75) being connected to the first connecting member (2) or the second connecting member (3), the fixing member (75) being in contact with the sealing ring (74), and the fixing member (75) being provided with a communicating hole (751) for the tube body (71) to pass through.

8. The pipe connection structure according to claim 7, characterized in that: The fixing member (75) is threadedly connected to the first connecting member (2) or the second connecting member (3).

9. The pipe connection structure according to claim 8, characterized in that: The multi-toothed clamping spring (72) comprises a clamping spring body (721) and a plurality of clamping teeth (722) integrally formed with the clamping spring body (721), wherein the plurality of clamping teeth (722) are evenly arranged along the circumferential direction of the clamping spring body (721).

10. The pipe connection structure according to claim 9, characterized in that: The latching tooth (722) is arranged obliquely relative to the retaining spring body (721); the inclination angle between the latching tooth (722) and the retaining spring body (721) is 30 degrees; and the direction of the latching tooth (722) is the direction from the fixing member (75) toward the connecting sleeve (1).

Images