Partition plate type rotatable three-way connector device and engineering machinery

Abstract

The invention discloses a partition plate type rotatable three-way connector device and engineering machinery. The partition plate type rotatable three-way connector device comprises a three-way body, a rotatable oil port pre-buckling thread sleeve connector, a welding pipe sleeve and a welding inner cone thread sleeve. The three-way body is provided with three oil ports; after the rotatable oil port pre-buckling thread sleeve connector is assembled on a first oil port of the three-way body and is pre-buckled with the first oil port into a whole, the rotatable oil port pre-buckling thread sleeve connector and an internal thread oil port of main machine equipment can be directly installed and connected in the mode that the direction can be adjusted in a rotatable mode. A second oil port of the three-way body penetrates through a partition plate with a through hole on the host equipment and then is locked through a locking nut, and the inner side end face of the welding pipe sleeve and the second oil port are in conical sealing fit and then are locked through a fastening nut; the welding inner cone thread sleeve and the third oil port of the three-way body are fixed together in a threaded mode after being in cone sealing fit. According to the invention, direct connection with an oil port of host equipment in a rotatable direction adjusting manner is realized, and meanwhile, partition plate type installation in a multi-sealing form is realized.

Description

Technical Field

[0001] The invention relates to a partition type rotatable three-way joint device, belonging to the technical field of joints for engineering machinery. Background Art

[0002] At present, most of the three-way joints in the engineering machinery industry are used to directly connect with 24° cone seal transition joints or 24° cone seal joints in soft and hard pipe assemblies. In terms of design, they can rarely be directly connected to the internal threaded oil ports in the equipment. On the other hand, it is rare to achieve a three-way body in the design scheme that can achieve multiple sealing forms and partition-type installation.

[0003] The existing patent discloses a rotatable three-way joint for sealing (publication number CN206112349U). This technical solution has the following shortcomings: 1. The structural device in this patent is that an external threaded sleeve is set on the first horizontal connection port, and a stopper core needs to be welded on the end, which is easy to cause welding defects.

[0004] 2. The structure in this patent cannot achieve bulkhead connection.

[0005] 3. The structure in this patent uses a chamfered design on the end face of the connection port during use, and uses a composite gasket to achieve sealing. However, since it is a simple hard seal, its effect is inferior to the double seal of the cone seal and O-ring in this patent. Summary of the invention

[0006] The present invention provides a baffle-type rotatable tee joint device, the purpose of which is to solve the following problems: 1. The tee body can be directly rotatably connected to the internal threaded oil port of the equipment without adding a transition joint; 2. It can solve the problem of achieving cone sealing with a welded hard pipe and perform baffle-type installation at the same time; 3. It can realize the matching connection of internal threaded welding sleeves and screw sleeves of welded hard pipes with different tapers in multiple ways.

[0007] The present invention is implemented according to the following technical solutions: In a first aspect, the present invention provides a baffle-type rotatable three-way joint device, comprising: Tee body, the overall structure is T-shaped, with three oil ports; The rotatable oil port pre-fastening screw sleeve joint is assembled on the first oil port of the tee body and pre-fastened therewith to form an integral body, and is directly connected to the internal threaded oil port of the host device to realize a rotatable and adjustable direction for installation; The welding sleeve, the second oil port of the tee passes through the partition with a through hole on the host device and is locked by a locking nut, the inner end face of the welding sleeve and the second oil port are matched to achieve a cone seal and then locked by a fastening nut, and the outer end face of the welding sleeve can be welded with pipes of different diameters; The welded inner cone screw sleeve is fixed together by threads after forming a cone seal with the third oil port of the tee body. The outer end surface of the welded inner cone screw sleeve can be welded with pipes of different diameters.

[0008] In some embodiments, the first oil port of the tee is a four-layer stepped hollow cylindrical structure having a cylindrical end surface for mounting a sealing component and a groove for pre-snap-on with the rotatable oil port pre-snap-on nut joint.

[0009] In some embodiments, the sealing component is composed of an O-ring and a retaining ring.

[0010] In some embodiments, the left end external structure of the rotatable oil port pre-buckled screw joint is a hollow structure combining an external thread, an ED sealing groove and an external hexagonal body that matches the internal threaded oil port of the host device; the right end external structure of the rotatable oil port pre-buckled screw joint is an external conical surface and a buckled cylindrical outer platform that is pre-buckled with the tee, and the right side internal structure of the rotatable oil port pre-buckled screw joint is a hollow structure combining a conical hole and a cylindrical hole that matches the first oil port of the tee and a pre-buckled center hole.

[0011] In some embodiments, the external structure of the second oil port of the tee body is as follows from inside to outside: A cylindrical partition stopper, used to stop the partition and limit the axial position of the partition; Long thread, used to cooperate with the locking nut to push the partition to the cylindrical partition stop; The connection structure composed of a straight short frustum and a conical surface is used to form a conical seal with the welding pipe sleeve. The fastening nut is matched with the long thread to fix the welding pipe sleeve and the connection structure together; the angle β between the outer conical surface of the connection structure and the horizontal plane can be designed according to the different matching angles of the welding pipe sleeves that need to be connected.

[0012] In some embodiments, the internal structure of the welded pipe sleeve includes an inner conical surface for conical sealing with the second oil port and a built-in hole for welding with pipes of different diameters; the external structure of the welded pipe sleeve includes a cylindrical outer platform for cooperating with the inner ring protrusion of the fastening nut.

[0013] In some embodiments, the external structure of the third oil port of the tee body consists of an upper cylinder and a lower cone; the outer circumferential surface of the upper cylinder is provided with an external thread for threaded fixation with the welded inner conical nut sleeve; the outer conical surface of the lower cone is tangent to the inner conical surface of the welded inner conical nut sleeve to form a cone seal.

[0014] In some embodiments, an O-shaped groove is provided on the outer conical surface of the lower cone, and an O-shaped ring is installed in the O-shaped groove to further seal the third oil port and the welded inner conical nut.

[0015] In some embodiments, the external structure of the welded inner cone screw sleeve is composed of a hexagon and an outer cone surface; the internal structure of the welded inner cone screw sleeve is composed of an inner thread and an inner cone surface, the angle α between the inner cone surface and the horizontal plane is consistent with the outer cone surface on the tee, and the angle α can be designed according to the cone surface angles of different tees; the inner cone surface is provided with built-in holes for welding to pipes of different diameters.

[0016] In a second aspect, the present invention provides an engineering machinery, comprising the above-mentioned partition type rotatable three-way joint device.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The tee body is a three-way structure with multiple connections of a partition plate type processed from a forging blank. The cylindrical end surface of the left-end O-ring and retaining ring and the groove for pre-fastening with the rotatable oil port pre-fastening screw sleeve joint are four-layer stepped hollow cylindrical structures. It can be directly connected to the internal threaded oil port of the equipment in a rotatable and adjustable direction without adding a transition joint; 2. It solves the problem of achieving cone sealing with welded hard pipes and being able to perform partition type installation at the same time; 3. It can realize the connection with multiple ways of welding hard pipe internal thread welding sleeves, screw sleeves, etc. with different tapers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0019] In the attached picture: Figure 1 It is a partial cross-sectional view of a partition type rotatable three-way joint device of the present invention; Figure 2 is a three-dimensional diagram of the three-way body of the present invention; Figure 3 A partial cross-sectional view and a side view of the three-way body of the present invention (a is a partial cross-sectional view, b is a side view); Figure 4 A partial cross-sectional view of a rotatable oil port pre-fastening nut joint of the present invention; Figure 5 is a cross-sectional view of a welded pipe sleeve of the present invention; Figure 6 It is a partial cross-sectional view of the welded inner cone nut sleeve of the present invention.

[0020] Figure identification: 1-tee, 2-rotatable oil port pre-fastening screw sleeve joint, 3-fastening nut, 4-welded pipe sleeve, 5-locking nut, 6-welded inner cone screw sleeve, 7-O-ring, 8-partition, 1-1-cylindrical end face, 1-2-groove, 1-3-cylindrical partition baffle, 1-4-long thread, 1-5-connecting structure, 1-6-external thread, 1-7-external cone surface, 2-1-pressed cylindrical outer platform, 2-2-external thread, 2-3-ED sealing groove, 2-4-hollow structure, 2-5-pre-fastening center hole, 4-1-inner cone surface, 4-2-built-in hole, 6-1-internal thread, 6-2-inner cone surface, 6-3-built-in hole.

[0021] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0023] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1 As shown, a partition type rotatable three-way joint device comprises a tee 1, a rotatable oil port pre-fastening screw sleeve joint 2, a welding pipe sleeve 4 and a welding inner cone screw sleeve 6; the tee 1 is a T-shaped structure as a whole and has three oil ports; after the rotatable oil port pre-fastening screw sleeve joint 2 is assembled on the first oil port of the tee 1 and pre-fastened with it as a whole, it is directly installed and connected with the inner threaded oil port of the host device to realize rotatable adjustment direction; the second oil port of the tee 1 passes through the partition 8 with a through hole on the host device and is locked by the locking nut 5, the inner end face of the welding pipe sleeve 4 is locked by the fastening nut 3 after the cone seal is realized with the second oil port, and the outer end face of the welding pipe sleeve 4 can be welded with pipes of different diameters; the welding inner cone screw sleeve 6 is fixed together with the third oil port of the tee 1 by means of threads after forming a cone seal, and the outer end face of the welding inner cone screw sleeve 6 can be welded with pipes of different diameters.

[0026] It should be noted that the tee body 1 as a whole is a tee structure of a bulkhead type with multiple connections processed from a forging blank.

[0027] The connection method between the tee and the rotatable oil port pre-threaded sleeve joint is further described below.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the first oil port of the tee body 1 is a four-layer stepped hollow cylindrical structure having a cylindrical end face 1-1 for mounting a sealing component and a groove 1-2 for pre-fastening with a rotatable oil port pre-fastening nut joint 2.

[0029] In a preferred solution, the sealing component is composed of an O-ring and a retaining ring.

[0030] The external structure of the left end of the rotatable oil port pre-buckled screw joint 2 is a hollow structure combining an external thread 2-2, an ED sealing groove 2-3 and an external hexagonal body that matches the internal thread oil port of the host equipment; the external structure of the right end of the rotatable oil port pre-buckled screw joint 2 is an external cone and a buckled cylindrical outer platform 2-1 that is pre-buckled with the tee 1, and the internal structure of the right side of the rotatable oil port pre-buckled screw joint 2 is a hollow structure 2-4 combining a tapered hole and a cylindrical hole that matches the first oil port of the tee 1, and a pre-buckled center hole 2-5.

[0031] The connection method between the tee and the welding sleeve is further described below.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the external structure of the second oil port of the tee 1 is, from the inside to the outside, a cylindrical partition stop 1-3, a long thread 1-4 and a connecting structure 1-5 composed of a straight short cone and a conical surface; the cylindrical partition stop 1-3 is used to resist the partition 8 and axially limit the partition 8; the long thread 1-4 is used to cooperate with the locking nut 5 to push the partition 8 to the cylindrical partition stop 1-3; the connecting structure 1-5 is used to form a conical seal with the welding pipe sleeve 4, and the welding pipe sleeve 4 and the connecting structure 1-5 are fixed together after the fastening nut 3 cooperates with the long thread 1-4; the angle β between the outer conical surface of the connecting structure 1-5 and the horizontal plane can be designed according to the different matching angles of the welding pipe sleeves 4 that need to be connected.

[0033] The internal structure of the welding sleeve 4 includes an inner conical surface 4-1 for cone sealing with the second oil port and a built-in hole 4-2 for welding with pipes of different diameters; the external structure of the welding sleeve 4 includes a cylindrical outer platform for cooperating with the inner ring protrusion of the fastening nut 3.

[0034] The connection method between the tee and the welded inner cone screw sleeve is further described below.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, the external structure of the third oil port of the tee 1 is composed of an upper cylinder and a lower cone; the outer circumferential surface of the upper cylinder is provided with an external thread 1-6 for threaded fixation with the welded inner cone screw sleeve 6; the outer conical surface 1-7 of the lower cone is tangentially matched with the inner conical surface 6-2 of the welded inner cone screw sleeve 6 to form a cone seal; the angle α between the outer conical surface 1-7 and the vertical direction can be designed according to the actual matching taper.

[0036] In a further solution, an O-shaped groove is provided on the outer conical surface 1 - 7 of the lower cone, and an O-shaped ring 7 is installed in the O-shaped groove to further seal the third oil port and the welded inner conical nut 6.

[0037] The external structure of the welded inner cone screw sleeve 6 is composed of a hexagon and an outer cone surface; the internal structure of the welded inner cone screw sleeve 6 is composed of an inner thread 6-1 and an inner cone surface 6-2, the angle α between the inner cone surface 6-2 and the horizontal plane is consistent with the outer cone surface 1-7 on the tee 1, and the angle α can be designed according to different cone surface angles of the tee 1; the inner cone surface 6-2 is provided with a built-in hole 6-3 for welding with pipes of different diameters.

[0038] The specific implementation scheme of the above-mentioned partition type rotatable three-way joint device is given below: First, after installing the O-ring and the retaining ring on the left end stepped cylindrical end face 1-1 of the tee 1, they are pre-fastened into a whole with the pre-fastened center hole 2-5 inside the rotatable oil port pre-fastening screw sleeve joint 2, and then the ED elastic sealing ring is installed in the ED sealing groove 2-3 of the rotatable oil port pre-fastening screw sleeve joint 2 and connected to the internal threaded oil port of the host equipment. During installation, after adjusting the direction through the rotatable oil port pre-fastening screw sleeve joint 2, the thread that matches the oil port is positioned and tightened through its hexagonal structure. The O-ring, retaining ring, and ED elastic sealing ring play a sealing role between the oil port and the internal channel of the tee 1 during the implementation process.

[0039] Secondly, during implementation, the long thread 1-4 on the right side of the upper end of the tee 1 for through-plate connection is locked with the partition 8 with a through hole on the main device through the locking nut 5. At the same time, the conical surface on the tee connected to the right side of the cylindrical long thread 1-4 cooperates with the inner conical surface 4-1 of the welding pipe sleeve 4 to achieve a cone sealing connection, and is connected to the long thread 1-4 of the tee through the fastening nut 3 to achieve tightening. On the other hand, the built-in hole 4-2 in the welding pipe sleeve 4 for welding can be designed with different diameter sizes for welding of pipes of different specifications.

[0040] Again, during implementation, the middle of the tee 1 is a cylindrical table with an external thread 1-6 at the lower end for screwing together with the internal thread 6-1 of the welded internal conical screw sleeve 6, and an O-ring 7 is installed in the O-groove opened on the external conical surface 1-7 to form a first seal. At the same time, during implementation, the external conical surface 1-7 of the tee is tangentially matched with the internal conical surface 6-2 of the welded internal conical screw sleeve 6 to form a second seal.

[0041] In summary, the present invention provides a baffle-type rotatable three-way joint device, whose structural feature is that its three-way body and the rotatable oil port pre-snubber screw joint are buckled as a whole, and a composite structure that can be installed in a baffle-type manner while realizing cone sealing with a welded hard pipe.

[0042] Firstly, the upper left end of the T-shape of the tee is pre-fastened with a rotatable oil port pre-fastened screw sleeve joint and can be connected to the internal threaded oil port of the equipment, and the installation direction can be adjusted through this screw sleeve joint during the installation process.

[0043] Secondly, the T-shaped upper right end of the tee is provided with a structure that can achieve sealing with different cone angles α with the welded hard pipe and can be installed in a partition type.

[0044] Again, the lower and middle end of the T-shape of the tee is a structure with an O-groove at an angle β between the cylindrical external thread and the long external cone surface. By changing the designed β angle, it can be sealed and connected with the welded internal cone screw sleeve of the welded hard pipe with internal thread of different tapers.

[0045] The engineering machinery provided by the present invention is described below. The engineering machinery described below and the partition type rotatable three-way joint device described above can be referred to each other.

[0046] An engineering machinery provided by the present invention may include a partition-type rotatable three-way joint device as described in any one of the above embodiments.

[0047] The beneficial effects achieved by the engineering machinery provided by the present invention are consistent with the beneficial effects achieved by the partition type rotatable three-way joint device provided by the present invention, and will not be described in detail here.

[0048] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0049] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present invention and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by this application.

[0050] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A rotatable three-way connector device with a partition plate, characterized in that: include: Tee body, the overall structure is T-shaped, with three oil ports; The rotatable oil port pre-fastening screw sleeve joint is assembled on the first oil port of the tee body and pre-fastened therewith to form an integral body, and is directly connected to the internal threaded oil port of the host device to realize a rotatable and adjustable direction for installation; The welding sleeve, the second oil port of the tee passes through the partition with a through hole on the host device and is locked by a locking nut, the inner end face of the welding sleeve and the second oil port are matched to achieve a cone seal and then locked by a fastening nut, and the outer end face of the welding sleeve can be welded with pipes of different diameters; The welded inner cone screw sleeve is fixed together by threads after forming a cone seal with the third oil port of the tee body. The outer end surface of the welded inner cone screw sleeve can be welded with pipes of different diameters.

2. A rotatable three-way connector device of a partition type according to claim 1, characterized in that: The first oil port of the tee is a four-layer stepped hollow cylindrical structure having a cylindrical end surface for mounting a sealing component and a groove for pre-fastening with the rotatable oil port pre-fastening nut joint.

3. A partition type rotatable three-way joint device according to claim 2, characterized in that: The sealing component is composed of an O-ring and a retaining ring.

4. A partition type rotatable three-way joint device according to claim 1, characterized in that: The left end external structure of the rotatable oil port pre-screw sleeve joint is a hollow structure combining an external thread, an ED sealing groove and an external hexagonal body that matches the internal thread oil port of the host equipment; The external structure of the right end of the rotatable oil port pre-buckled screw sleeve joint is an outer conical surface and a buckled cylindrical outer platform pre-buckled with the tee, and the internal structure of the right side of the rotatable oil port pre-buckled screw sleeve joint is a hollow structure combining a conical hole and a cylindrical hole that matches the first oil port of the tee and a pre-buckled center hole.

5. A rotatable three-way connector device of a partition type according to claim 1, characterized in that: The external structure of the second oil port of the tee body is as follows from inside to outside: A cylindrical partition stopper, used to stop the partition and limit the axial position of the partition; Long thread, used to cooperate with the locking nut to push the partition to the cylindrical partition stop; The connection structure composed of a straight short frustum and a conical surface is used to form a conical seal with the welding pipe sleeve. The fastening nut is matched with the long thread to fix the welding pipe sleeve and the connection structure together; the angle β between the outer conical surface of the connection structure and the horizontal plane can be designed according to the different matching angles of the welding pipe sleeves that need to be connected.

6. A partition type rotatable three-way joint device according to claim 1, characterized in that: The internal structure of the welding sleeve includes an inner conical surface for performing a cone seal with the second oil port and a built-in hole for welding with pipes of different diameters; The outer structure of the welding sleeve includes a cylindrical outer platform for cooperating with the inner ring protrusion of the fastening nut.

7. The partition type rotatable three-way joint device according to claim 1, characterized in that: The external structure of the third oil port of the tee body consists of an upper cylinder and a lower cone; the outer circumferential surface of the upper cylinder is provided with an external thread for threaded fixation with the welded inner conical nut sleeve; the outer conical surface of the lower cone is tangent to the inner conical surface of the welded inner conical nut sleeve to form a cone seal.

8. A partition type rotatable three-way joint device according to claim 7, characterized in that: An O-shaped groove is arranged on the outer conical surface of the lower cone, and an O-shaped ring is installed in the O-shaped groove to further seal the third oil port and the welded inner conical nut.

9. The partition type rotatable three-way joint device according to claim 1, characterized in that: The external structure of the welded inner cone screw sleeve is composed of a hexagonal body and an outer cone surface; the internal structure of the welded inner cone screw sleeve is composed of an inner thread and an inner cone surface, and the angle α between the inner cone surface and the horizontal plane is consistent with the outer cone surface on the tee, and the angle α can be designed according to the cone surface angles of different tees; The inner conical surface is provided with built-in holes for welding with pipes of different diameters.

10. An engineering machine, characterized in that: A partition-type rotatable three-way joint device comprising any one of claims 1 to 9.

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