A multi-directional connection metal fitting

Abstract

The utility model relates to metal joint technical field discloses a kind of multidirectional connection metal joints, including three-way connector, the outside of three-way connector three end portions is all threadedly connected with installation pipe, another end of installation pipe is fixedly connected with sleeve pipe, the inside of sleeve pipe is completely penetrated and is provided with through slot, slidingly setting up extension pipe in the inside of through slot, the both sides of extension pipe are all fixedly connected with slide bar, the outside of extension pipe is evenly provided with multiple metal bellows, the utility model is slidably provided with extension pipe in the inside of sleeve pipe, and slide bar can be slidably connected in the inside of side limiting sleeve, effectively increase the ability of extension pipe to keep level, reduce the stress between sleeve pipe and extension pipe and cause the problem that the stress of sleeve pipe and extension pipe is too concentrated, metal bellows are simultaneously arranged to allow extension pipe to have slight displacement in axial direction or radial direction in sleeve pipe, offset stress caused by vibration or thermal expansion and cold shrink, effectively improve the effect of use.

Description

Technical Field

[0001] This utility model relates to the field of metal connector technology, and in particular to a multidirectional metal connector. Background Technology

[0002] Multi-directional metal joints are widely used in industrial piping systems, mechanical equipment, and building structures. Their core function is to realize fluid transmission or mechanical connection in multiple directions. With the increasing demands of modern industry for system integration and space utilization, traditional unidirectional or bidirectional connection methods are no longer sufficient to meet the needs of complex scenarios.

[0003] When traditional multi-directional metal joints are extended, their fixed end and extension end are mostly rigidly connected. However, in normal operating conditions, the external pipeline cannot be guaranteed to be perfectly horizontal with the metal joint, causing the metal joint to be pulled in the axial or radial direction. The rigid connection structure cannot effectively release the stress concentration caused by deformation, which can easily lead to joint breakage or connection failure. With long-term use, it is easy to cause metal fatigue and damage to the metal joint.

[0004] Therefore, it is necessary to invent a multi-directional metal connector to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-directional metal connector to solve the problem mentioned in the background art that when traditional multi-directional metal connectors are extended, their fixed end and extension end are mostly rigidly connected. However, under normal use conditions, the external pipeline cannot be guaranteed to be completely horizontal with the metal connector, which causes the metal connector to be pulled in the axial or radial direction. The rigid connection structure cannot effectively release the stress concentration caused by deformation, which can easily lead to connector breakage or connection failure. With long-term use, it is easy to cause metal fatigue and damage to the metal connector.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional metal connector, including a three-way connector, wherein the outer sides of the three ends of the three-way connector are threaded with mounting tubes, the other end of the mounting tube is fixedly connected with a sleeve, the inner side of the sleeve is completely provided with a through groove, an extension tube is slidably provided inside the through groove, slide rods are fixedly connected to both sides of the extension tube, and multiple metal corrugated tubes are evenly provided on the outer side of the extension tube.

[0007] Both ends of the sleeve are fixedly connected to side limiting sleeves, and the inner side of the side limiting sleeve is provided with a sliding groove, and the sliding rod is slidably connected to the inner side of the sliding groove.

[0008] As a preferred embodiment, a sealing ring is provided on the outer side of the extension tube near the inner side of the sleeve, and a pull ring is fixedly connected to the other end of the extension tube. The pull ring is located on the outer side of the sleeve, and an installation head is fixedly connected to the other end of the pull ring. The outer side of the installation head is provided with external threads.

[0009] As a preferred embodiment, the side of the side limiting sleeve is provided with a plurality of first mounting holes evenly distributed on its side, and the upper and lower ends of the side limiting sleeve are provided with limiting grooves. The side of the slide rod is provided with a plurality of second mounting holes evenly distributed on its side, and the second mounting holes are provided in correspondence with the first mounting holes.

[0010] As a preferred embodiment, a U-shaped frame is provided on the outer side of the side limiting sleeve, and limiting sliders are fixedly connected to both the upper and lower ends of the U-shaped frame. The U-shaped frame slides on the outer side of the side limiting sleeve, and the limiting sliders are slidably connected to the inner side of the limiting groove.

[0011] As a preferred embodiment, the U-shaped frame has through holes at both the top and bottom ends, and the through holes are corresponding to the second mounting holes. A threaded rod is slidably provided on the inner side of the through holes.

[0012] As a preferred embodiment, a baffle is fixedly connected to the middle of the threaded rod, the baffle is disposed between the U-shaped frames, and a spring is disposed on the outside of the threaded rod, the spring being disposed between the baffle and the U-shaped frames.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This utility model effectively increases the ability of the extension tube to maintain horizontality by slidingly setting an extension tube on the inner side of the sleeve, and the slide rod can be slidably connected to the inner side of the side limiting sleeve. This reduces the stress concentration problem between the sleeve and the extension tube. At the same time, the metal corrugated tube allows the extension tube to have slight axial or radial displacement within the sleeve, which can offset the stress caused by vibration or thermal expansion and contraction, thus effectively improving the performance.

[0015] This utility model, by providing a U-shaped frame and a threaded rod on the outside of the side limiting sleeve, can effectively fix the extension tube to the inside of the sleeve after determining the position of the extension tube, thus effectively improving the stability of the sleeve and extension tube in use. The U-shaped frame slides on the inside of the limiting groove through the limiting slider, which makes it easy to remove and replace quickly, and at the same time facilitates the quick movement of the threaded rod for thread fixing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the main structure of the sleeve in this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the extension tube in this utility model;

[0019] Figure 4 In this utility model Figure 1 A schematic diagram of the structure at point A in the middle.

[0020] In the picture:

[0021] 1. Three-way connector;

[0022] 2. Sleeve; 21. Side limiting sleeve; 211. Sliding groove; 212. Limiting groove; 213. First mounting hole; 22. Through groove;

[0023] 3. Extension tube; 31. Pull ring; 32. Mounting head; 321. External thread; 33. Sealing ring; 34. Slide rod; 341. Second mounting hole; 35. Metal bellows;

[0024] 4. Installation pipe;

[0025] 5. U-shaped frame; 51. Limiting slider;

[0026] 6. Threaded rod; 61. Baffle; 62. Spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 4 A multi-directional metal connector includes a three-way connector 1. The outer sides of the three ends of the three-way connector 1 are threaded with mounting tubes 4. The other end of the mounting tube 4 is fixedly connected with a sleeve 2. The inner side of the sleeve 2 is completely provided with a through groove 22. An extension tube 3 is slidably provided inside the through groove 22. Both sides of the extension tube 3 are fixedly connected with sliding rods 34. Multiple metal corrugated tubes 35 are evenly provided on the outer side of the extension tube 3.

[0029] Both ends of the sleeve 2 are fixedly connected to side limiting sleeves 21. The inner side of the side limiting sleeve 21 is provided with a sliding groove 211, and the sliding rod 34 is slidably connected to the inner side of the sliding groove 211.

[0030] Specifically, an extension tube 3 is slidably provided on the inner side of the sleeve 2, and a sliding rod 34 is slidably connected to the inner side of the side limiting sleeve 21. The setting of the sliding rod 34 and the side limiting sleeve 21 can effectively increase the ability of the extension tube 3 to maintain horizontality, reduce the stress concentration between the sleeve 2 and the extension tube 3, and allow the sliding rod 34 to slide within the side limiting sleeve 21. Teflon is applied between the sliding rod 34 and the side limiting sleeve 21, making the inner wall smoother and improving the ease of sliding. At the same time, the metal bellows 35 is provided to allow the extension tube 3 to have slight axial or radial displacement within the sleeve 2, which can offset the stress caused by vibration or thermal expansion and contraction, effectively improving the performance.

[0031] Please see the appendix Figure 3 A sealing ring 33 is provided on the outer side of one end of the extension tube 3 near the inner side of the sleeve 2. A pull ring 31 is fixedly connected to the other end of the extension tube 3. The pull ring 31 is located on the outer side of the sleeve 2. An installation head 32 is fixedly connected to the other end of the pull ring 31. An external thread 321 is provided on the outer side of the installation head 32.

[0032] Specifically, a sealing ring 33 is provided, which is made of fluororubber. Fluororubber has excellent tear resistance and compression set. It is located between the sleeve 2 and the extension pipe 3. When the extension pipe 3 and the sleeve 2 are offset relative to each other, the sealing ring 33 can still provide a good sealing effect, so that the water flow can flow completely from the sleeve 2 and the extension pipe 3 and will not flow into the gap between the sleeve 2 and the extension pipe 3. A pull ring 31 is provided to facilitate the movement of the extension pipe 3. An installation head 32 and an external thread 321 are provided to facilitate the connection of external water pipes.

[0033] Please see the appendix Figure 2 The side of the side limiting sleeve 21 is evenly provided with a plurality of first mounting holes 213, and the upper and lower ends of the side limiting sleeve 21 are provided with limiting grooves 212. The side of the slide rod 34 is evenly provided with a plurality of second mounting holes 341, and the second mounting holes 341 are corresponding to the first mounting holes 213.

[0034] Specifically, by setting a first mounting hole 213, the position of the first mounting hole 213 is set to correspond to the opening position of the second mounting hole 341. When the extension tube 3 moves in the sleeve 2, the slide rod 34 moves in the slide groove 211. After the first mounting hole 213 and the second mounting hole 341 are aligned, the slide rod 6 can be threaded into the first mounting hole 213 and the second mounting hole 341, thereby fixing the slide rod 34 to the side limiting sleeve 21.

[0035] Please see the appendix Figure 4A U-shaped frame 5 is provided on the outer side of the side limiting sleeve 21. Limiting sliders 51 are fixedly connected to both the upper and lower ends of the U-shaped frame 5. The U-shaped frame 5 slides on the outer side of the side limiting sleeve 21. The limiting sliders 51 are slidably connected to the inner side of the limiting groove 212. Through holes are provided at both the upper and lower ends of the U-shaped frame 5. The through holes are corresponding to the second mounting holes 341. A threaded rod 6 is slidably provided on the inner side of the through holes. A baffle 61 is fixedly connected to the middle of the threaded rod 6. The baffle 61 is located between the U-shaped frames 5. A spring 62 is provided on the outside of the threaded rod 6. The spring 62 is located between the baffle 61 and the U-shaped frame 5.

[0036] Specifically, the U-shaped frame 5 has a U-shaped design with metal plates on three sides. Two corresponding sides have through holes in their center, allowing the threaded rod 6 to pass through. Limiting sliders 51 are fixedly connected to both sides of one metal plate. These limiting sliders 51 correspond to limiting grooves 212, allowing them to slide from the side of the side limiting sleeve 21 into the inner side of the first mounting hole 213. This facilitates the sliding movement of the U-shaped frame 5 at the front end of the side limiting sleeve 21. The threaded rod 6, with threads on its front end, can pass through the U-shaped frame. The through hole in 5 is inserted from the first mounting hole 213 and finally threaded into the second mounting hole 341, thereby fixing the side limiting sleeve 21 to the outside of the slide rod 34. This effectively limits and fixes the sleeve 2 and the extension tube 3 to each other, improving the stability of use. By setting the spring 62, the spring 62 effectively lifts the baffle 61. After the threaded rod 6 is screwed out from the first mounting hole 213, the spring 62 lifts the baffle 61, so that the threaded rod 6 is away from the side limiting sleeve 21, so that the threaded rod 6 will not contact the side limiting sleeve 21, thus facilitating the movement of the threaded rod 6 by the U-shaped frame 5.

[0037] The working principle of this utility model is as follows: When needed, multiple parts can be assembled. First, the mounting tube 4 is threaded to the outside of the three-way connector 1, the extension tube 3 is slid to the inside of the sleeve 2, and the slide rod 34 is aligned with the side limiting sleeve 21 and slid into the slide groove 211.

[0038] When needed, the extension tube 3 is slid out of the sleeve 2 and adjusted to the specific position according to the location of the pipeline. The external pipeline is connected to the mounting head 32. The limiting slider 51 is slid into the side of the side limiting sleeve 21. The threaded rod 6 is aligned with the first mounting hole 213 and threaded into the first mounting hole 213 and the second mounting hole 341, thereby fixing the extension tube 3 to the sleeve 2. By setting the metal bellows 35, the extension tube 3 can be allowed to have slight axial or radial displacement within the sleeve 2, which can offset the stress caused by vibration or thermal expansion and contraction, effectively improving the performance.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-directional connecting metal joint, comprising a three-way connecting head (1), an installation pipe (4) is threadedly connected to the outer side of each of the three ends of the three-way connecting head (1), and a sleeve pipe (2) is fixedly connected to the other end of the installation pipe (4), characterized in that: The inner side of the sleeve (2) is completely provided with a through groove (22), and an extension tube (3) is slidably provided inside the through groove (22). Both sides of the extension tube (3) are fixedly connected with slide rods (34), and multiple metal corrugated tubes (35) are evenly provided on the outer side of the extension tube (3). Both ends of the sleeve (2) are fixedly connected to side limiting sleeves (21), and the inner side of the side limiting sleeve (21) is provided with a sliding groove (211), and the sliding rod (34) is slidably connected to the inner side of the sliding groove (211).

2. A multi-directional metal connector according to claim 1, characterized in that: A sealing ring (33) is provided on the outer side of one end of the extension tube (3) near the inner side of the sleeve (2). A pull ring (31) is fixedly connected to the other end of the extension tube (3). The pull ring (31) is located on the outer side of the sleeve (2). An installation head (32) is fixedly connected to the other end of the pull ring (31). An external thread (321) is provided on the outer side of the installation head (32).

3. A multi-directional metal connector according to claim 2, characterized in that: The side limit sleeve (21) has a plurality of first mounting holes (213) evenly provided on its side. The upper and lower ends of the side limit sleeve (21) are provided with limit grooves (212). The side of the slide rod (34) has a plurality of second mounting holes (341) evenly provided on its side. The second mounting holes (341) are corresponding to the first mounting holes (213).

4. A multi-directional metal connector according to claim 3, characterized in that: A U-shaped frame (5) is provided on the outside of the side limiting sleeve (21). Limiting sliders (51) are fixedly connected to both the upper and lower ends of the U-shaped frame (5). The U-shaped frame (5) slides on the outside of the side limiting sleeve (21), and the limiting sliders (51) are slidably connected to the inside of the limiting groove (212).

5. A multidirectional metal connector according to claim 4, characterized in that: The U-shaped frame (5) has through holes at both the upper and lower ends. The through holes are corresponding to the second mounting hole (341). A threaded rod (6) is slidably provided on the inner side of the through hole.

6. A multi-directional metal connector according to claim 5, characterized in that: A baffle (61) is fixedly connected to the middle of the threaded rod (6). The baffle (61) is disposed between the U-shaped frame (5). A spring (62) is disposed on the outside of the threaded rod (6). The spring (62) is disposed between the baffle (61) and the U-shaped frame (5).

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