Quick connection type seamless stainless steel pipe

Abstract

The utility model relates to a quick connection type seamless stainless steel pipe which is provided with a main pipe body, a first pipe body and a second pipe body. The outer diameter of the first pipe body is the same as that of the main pipe body, the locking device comprises a positioning block, positioning sliding grooves oppositely formed in the positioning block, a positioning sliding block, reset springs and a connecting assembly, the two ends of each reset spring are fixed to the side wall of the positioning sliding block and the side wall of the corresponding positioning sliding groove respectively, and the connecting assembly comprises two arc-shaped pressing rods and pressing pads. An installation groove is formed in the inner wall of each arc-shaped pressing rod, pressing grooves are formed in the outer wall of the main pipe body and the outer wall of the first pipe body, the oppositely-arranged arc-shaped pressing rods rotate, then abut against the main pipe body or the first pipe body and are fixed through locking pieces, inserting grooves are formed in the first pipe body, and after the adjacent main pipe body inserting grooves are inserted, the main pipe body and the first pipe body are fixed through locking pieces. Close connection is achieved through continuous force application of all the reset springs to the positioning sliding block and sliding fit of the positioning sliding block and the positioning sliding groove. The device is ingenious in structure, convenient and practical.

Description

Technical Field

[0001] This utility model relates to the field of seamless stainless steel, and in particular to a quick-connect seamless stainless steel pipe. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, widely used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as in mechanical structural components. Additionally, it is lighter in weight while maintaining the same bending and torsional strength, making it widely used in manufacturing mechanical parts and engineering structures, and also commonly used in furniture and kitchenware.

[0003] In the existing technology, in order to adapt to the needs of the usage environment and scenario, multiple stainless steel pipes need to be connected before use. The existing connection method is generally to connect them by welding. However, welding is prone to rusting or corrosion due to environmental factors, which affects the overall sealing performance. In addition, the stainless steel pipes are fixed together after connection, and disassembly requires a lot of manpower and resources, which is very inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-connect seamless stainless steel pipe with an ingenious structure that enables rapid connection and disassembly of various seamless stainless steel pipes, making it convenient and practical.

[0005] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a main body and a first tube and a second tube disposed on both sides of the main body. The first tube and the second tube are integrally formed with the main body. The outer diameter of the first tube is the same as the outer diameter of the main body, and the outer diameter of the second tube is smaller than the outer diameter of the main body. They are fixed by a locking device. The locking device includes a positioning block, positioning grooves disposed opposite to each other on the positioning block, positioning sliders slidably disposed in each positioning groove, return springs disposed in each positioning groove, and connecting components disposed on each positioning slider and fixedly connected to the main body or the first tube. The extension direction of each positioning groove is parallel to the axis of the main body. The two ends of each return spring are respectively fixed to the side walls of the positioning slider and the positioning groove. The connecting component includes two oppositely disposed and rotatable components. The positioning slider is connected to an arc-shaped pressure rod and a pressure pad is provided on the inner wall of the arc-shaped pressure rod. Each arc-shaped pressure rod has a mounting groove on its inner wall for installing the pressure pad. Each pressure pad is fixedly installed in the mounting groove. The outer walls of the main tube and the first tube are provided with pressure grooves coaxially arranged with the main tube. Each pressure pad is pressed against the pressure groove after each arc-shaped pressure rod rotates. Each arc-shaped pressure rod on each positioning slider is respectively pressed against the main tube or the first tube after rotating and is fixed by locking components. The first tube has a slot for the insertion of the second tube. Adjacent main tubes are connected through the slots in the second tube and the first tube. After each arc-shaped pressure rod is connected to the first tube and the main tube, a tight connection is achieved by the continuous force applied to the positioning slider by each return spring and the sliding cooperation between the positioning slider and the positioning groove.

[0006] Furthermore, the sidewall of the aforementioned positioning slide groove is provided with a side slide groove arranged parallel to the extension direction of each positioning slide groove, and the positioning slider is provided with a side slider adapted to each side slide groove. Each positioning slider is slidably connected in the positioning slide groove through the cooperation of each side slider and the side slide groove.

[0007] Furthermore, each positioning slider is provided with a rotating groove, and each arc-shaped pressure rod is provided with a rotating shaft at both ends. The rotating groove is provided with rotating holes on both sides, and each rotating hole is provided with a torsion spring. The torsion spring is sleeved on each rotating shaft, and the two ends of the torsion spring are respectively fixed to the inner walls of the rotating shaft and the rotating hole. Each arc-shaped pressure rod and the pressure pad on the arc-shaped pressure rod are pressed against each pressure groove through the cooperation of each rotating shaft and rotating hole and the continuous force of the torsion spring.

[0008] Furthermore, each arc-shaped pressure bar has a locking plate integrally formed with the arc-shaped pressure bar at the end away from the positioning block. The extension direction of each locking plate is perpendicular to the axis of the arc-shaped pressure bar. Each locking plate has a locking hole. The locking holes are connected after the locking plates are pressed together. The axis of each locking hole is perpendicular to the axis of the arc-shaped pressure bar. A screw is installed in each locking hole. A nut that can be threaded with the screw is installed on the screw. The screw passes through each locking hole in sequence and fixes each locking plate by threading with the nut.

[0009] Furthermore, the outer wall of the second tube is provided with an annular groove coaxially arranged with the second tube, the cross-section of the annular groove being inverted T-shaped. A sealing protrusion is fitted onto the second tube, and the bottom of the sealing protrusion is provided with a connecting ring block adapted to the annular groove. The inner wall of the slot is provided with a connecting groove adapted to the sealing protrusion. The sealing protrusion is fixed to the second tube by the cooperation of the connecting ring block and the annular groove. The second tube is sealed and connected to the first tube by the insertion and cooperation of the slot and the cooperation of the sealing protrusion and the connecting groove.

[0010] This utility model has positive effects: (1) This utility model sets a first tube body and a second tube body with different outer diameters on both sides of the main tube body. The second tube body is connected to the first tube body on the adjacent stainless steel tube by cooperating with the slot. By setting a locking component, the positioning slider and the positioning groove can be used to accommodate the spacing of the pressing groove between the main tube body and the first tube body with different spacing, so as to accommodate stainless steel tubes of different lengths. The relative arc-shaped pressure rods on each positioning slider can press the pressing groove on the outer wall of the main tube body and the first tube body tightly and firmly. After pressing, the arc-shaped pressure rods are stably connected by the locking component. This effectively solves the problem that the installation and disassembly of stainless steel tubes in the prior art is relatively cumbersome. It can realize the stable and firm connection of each stainless steel tube. At the same time, it is convenient for each stainless steel tube to be quickly installed and disassembled. The structure is ingenious, stable and practical.

[0011] (2) This utility model provides a side slide groove on the side wall of the fixed position slide groove and a corresponding side slide block on the positioning slide block. The cooperation between each side slide block and the side slide groove can ensure the stability of the positioning slide block in the positioning slide groove and the smoothness of the positioning slide block sliding in the positioning slide groove, which is efficient and convenient.

[0012] (3) This utility model further ensures the firmness of each arc-shaped pressure rod against the pressure groove by setting a rotating groove on the positioning slide groove, setting a rotating shaft at both ends of the arc-shaped pressure rod, and by the cooperation of the rotating shaft and the rotating hole and the continuous force of the torsion spring, making it stable and practical.

[0013] (4) This utility model ensures the firmness and tightness of the connection between each arc-shaped pressure rod and the main tube body and the first tube body after the pressure pad on the arc-shaped pressure rod is inserted into the pressure groove by setting a locking plate on each arc-shaped pressure rod and cooperating with each screw and nut in the locking hole. It is convenient and practical.

[0014] (5) By setting an inverted T-shaped annular groove on the outer wall of the second pipe body and setting a plastic sealing protrusion on the second pipe body, the sealing protrusion and the connecting groove can ensure the sealing of the connection between the first pipe body and the second pipe body, and also ensure the convenience and stability of the connection between the stainless steel pipes. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0016] Figure 1 This is a schematic diagram of the overall structure of the quick-connect seamless stainless steel pipe in this utility model;

[0017] Figure 2 This is a cross-sectional view of the connection structure between adjacent first and second pipe bodies in this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a cross-sectional view of the overall structure of the locking device in this utility model;

[0020] Figure 5 This is a cross-sectional view of the overall structure of the positioning block and connecting assembly in this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of point B in the middle. Detailed Implementation

[0022] See Figures 1 to 6This utility model comprises a main body 1, and a first tube 2 and a second tube 3 disposed on both sides of the main body 1. The first tube 2 and the second tube 3 are integrally formed with the main body 1. The outer diameter of the first tube 2 is the same as the outer diameter of the main body 1, and the outer diameter of the second tube 3 is smaller than the outer diameter of the main body 1. They are fixed by a locking device 5. The locking device 5 includes a positioning block 51, positioning grooves 52 disposed opposite to each other on the positioning block 51, positioning sliders 53 slidably disposed in each positioning groove 52, return springs 54 disposed in each positioning groove 52, and connecting components disposed on each positioning slider 53 and fixedly connected to the main body 1 or the first tube 2. The extending direction of each positioning groove 52 is parallel to the axis of the main body 1. The two ends of each return spring 54 are respectively fixed to the side walls of the positioning slider 53 and the positioning groove 52. The connecting components include two arc-shaped pressure rods 55 disposed opposite to each other and rotatably connected to the positioning sliders 53, and pressure pads 56 disposed on the inner walls of the arc-shaped pressure rods 55. The wall is provided with mounting grooves 551 for installing pressure pads 56. Each pressure pad 56 is fixedly installed in the mounting groove 551. The outer walls of the main tube 1 and the first tube 2 are provided with pressure grooves 4 coaxially arranged with the main tube 1. Each pressure pad 56 is pressed against the pressure groove 4 after each arc-shaped pressure rod 55 rotates. Each arc-shaped pressure rod 55 on each positioning slider 53 is respectively pressed against the main tube 1 or the first tube 2 after rotating and is fixed by locking member. The first tube 2 is provided with a slot 21 for the second tube 3 to be inserted. Adjacent main tubes 1 are connected through the slot 21 in the second tube 3 and the first tube 2. After each arc-shaped pressure rod 55 is connected to the first tube 2 and the main tube 1, the positioning slider 53 is tightly connected by the continuous force applied by each return spring 54 and the sliding cooperation between the positioning slider 53 and the positioning groove 52.

[0023] The sidewall of the positioning slide groove 52 is provided with a side slide groove 521 that is parallel to the extension direction of each positioning slide groove 52. The positioning slider 53 is provided with a side slider 531 that is adapted to each side slide groove 521. Each positioning slider 53 is slidably connected in the positioning slide groove 52 through the cooperation of each side slider 531 and the side slide groove 521.

[0024] Each positioning slider 53 is provided with a rotating groove 532, and each arc-shaped pressure rod 55 is provided with a rotating shaft 552 at both ends. The rotating groove 532 is provided with a rotating hole 533 on both sides, and each rotating hole 533 is provided with a torsion spring 553. The torsion spring 553 is sleeved on each rotating shaft 552, and the two ends of the torsion spring 553 are respectively fixed to the inner walls of the rotating shaft 552 and the rotating hole 533. Each arc-shaped pressure rod 55 and the pressure pad 56 on the arc-shaped pressure rod 55 are pressed against each pressure groove 4 through the cooperation of each rotating shaft 552 and rotating hole 533 and the continuous force of the torsion spring 553.

[0025] Each arc-shaped pressure rod 55 has a locking plate 57 integrally formed with the end away from the positioning block 51. The extension direction of each locking plate 57 is perpendicular to the axis of the arc-shaped pressure rod 55. Each locking plate 57 has a locking hole 571. The locking holes 571 are connected after the locking plates 57 are pressed together. The axis of each locking hole 571 is perpendicular to the axis of the arc-shaped pressure rod 55. A screw 58 is installed in any locking hole 571. A nut 59 that can be threaded with the screw 58 is installed on the screw 58. The screw 58 passes through each locking hole 571 in sequence and fixes each locking plate 57 by threading with the nut 59.

[0026] The outer wall of the second tube 3 is provided with an annular groove 33 coaxially arranged with the second tube 3. The cross section of the annular groove 33 is inverted T-shaped. A sealing protrusion 31 is fitted on the second tube 3. The bottom of the sealing protrusion 31 is provided with a connecting ring block 32 adapted to the annular groove 33. The inner wall of the slot 21 is provided with a connecting groove 22 adapted to the sealing protrusion 31. The sealing protrusion 31 is fixed on the second tube 3 by the cooperation of the connecting ring block 32 and the annular groove 33. The second tube 3 is sealed and connected to the first tube 2 by the insertion cooperation with the slot 21 and the cooperation of the sealing protrusion 31 and the connecting groove 22.

[0027] The working principle of this utility model is as follows: During use, adjacent seamless stainless steel pipes are connected by inserting into slots 21 within the second pipe body 3 and the first pipe body 2. During this connection, the sealing rings 31 cooperate with the connecting grooves 22 to form a sealed connection between the first pipe body 2 and the second pipe body 3, effectively solving the problem of corrosion affecting the overall sealing performance of stainless steel pipe connections in the prior art. The operator can then lock the locking device 5 to the first pipe body 2 and the main pipe 1 of the other stainless steel pipe. During use, the distance between the positioning sliders 53 can be adjusted according to the spacing of the pressure grooves 4 on the first pipe body 2 and the main pipe 1. The positioning sliders 53... The opposing arc-shaped pressure rods 55 and the pressure pads 56 on the arc-shaped pressure rods 55 are pressed against each other in the pressure grooves 4 through the cooperation of each rotating shaft 552 and rotating hole 533, and the continuous force of the torsion spring 553. After the locking plates 57 are in contact with each other, the arc-shaped pressure rods 55 on the same positioning slider 53 are pressed together by the threaded cooperation of the nut 59 and the screw 58. Then, each positioning slider 53 moves towards each other under the continuous force of the return spring 54, thereby realizing a tight and firm connection between two adjacent stainless steel pipes. This effectively solves the problem of the cumbersome installation, connection and disassembly of stainless steel pipes in the prior art, greatly improves the efficiency of the connection between stainless steel pipes, as well as the stability and sealing after the connection. The structure is ingenious, stable and practical.

[0028] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-connect seamless stainless steel pipe, comprising a main body, and a first pipe body and a second pipe body disposed on both sides of the main body, wherein the first pipe body and the second pipe body are integrally formed with the main body; characterized in that: The outer diameter of the first tube is the same as that of the main tube, and the outer diameter of the second tube is smaller than that of the main tube. The second tube is fixed by a locking device. The locking device includes a positioning block, positioning grooves opposite to each other on the positioning block, positioning sliders slidably disposed within each positioning groove, return springs disposed within each positioning groove, and connecting components disposed on each positioning slider and fixedly connected to the main tube or the first tube. The extension direction of each positioning groove is parallel to the axis of the main tube. The two ends of each return spring are respectively fixed to the side walls of the positioning slider and the positioning groove. The connecting component includes two oppositely disposed and rotatably connected arc-shaped pressure rods to the positioning sliders, and pressure pads disposed on the inner walls of the arc-shaped pressure rods. The inner wall of the arc-shaped pressure rod is provided with a mounting groove for installing the pressure pads. Each pressure pad is fixedly installed in the mounting groove. The outer walls of the main tube and the first tube are provided with pressure grooves coaxially arranged with the main tube. Each pressure pad is pressed against the pressure groove after each arc-shaped pressure rod rotates. Each arc-shaped pressure rod on each positioning slider is respectively pressed against the main tube or the first tube after rotating and is fixed by locking components. The first tube is provided with a slot for the second tube to be inserted. Adjacent main tubes are connected through the slots in the second tube and the first tube. After each arc-shaped pressure rod is connected to the first tube and the main tube, a tight connection is achieved through the continuous force applied to the positioning slider by each return spring and the sliding cooperation between the positioning slider and the positioning groove.

2. The quick-connect seamless stainless steel pipe according to claim 1, characterized in that: The sidewall of the positioning slide is provided with a side slide groove that is parallel to the extension direction of each positioning slide groove. The positioning slider is provided with a side slider that is adapted to each side slide groove. Each positioning slider is slidably connected in the positioning slide groove through the cooperation of each side slider and the side slide groove.

3. The quick-connect seamless stainless steel pipe according to claim 2, characterized in that: Each positioning slider is provided with a rotating groove, and each arc-shaped pressure rod is provided with a rotating shaft at both ends. Each rotating groove is provided with a rotating hole on both sides, and each rotating hole is provided with a torsion spring. The torsion spring is sleeved on each rotating shaft, and the two ends of the torsion spring are respectively fixed to the inner wall of the rotating shaft and the rotating hole. Each arc-shaped pressure rod and the pressure pad on the arc-shaped pressure rod are pressed against each pressure groove through the cooperation of each rotating shaft and rotating hole and the continuous force of the torsion spring.

4. A quick-connect seamless stainless steel pipe according to claim 3, characterized in that: Each arc-shaped pressure bar has a locking plate integrally formed with the end away from the positioning block. The extension direction of each locking plate is perpendicular to the axis of the arc-shaped pressure bar. Each locking plate has a locking hole. The locking holes are connected after the locking plates are pressed together. The axis of each locking hole is perpendicular to the axis of the arc-shaped pressure bar. A screw is installed in each locking hole. A nut that can be threaded with the screw is installed on the screw. The screw passes through each locking hole in sequence and fixes each locking plate by threading with the nut.

5. A quick-connect seamless stainless steel pipe according to claim 4, characterized in that: The outer wall of the second tube is provided with an annular groove coaxially arranged with the second tube. The cross-section of the annular groove is inverted T-shaped. A sealing protrusion is fitted on the second tube. The bottom of the sealing protrusion is provided with a connecting ring block adapted to the annular groove. The inner wall of the slot is provided with a connecting groove adapted to the sealing protrusion. The sealing protrusion is fixed on the second tube by the cooperation of the connecting ring block and the annular groove. The second tube is sealed and connected to the first tube by the insertion and cooperation of the slot and the cooperation of the sealing protrusion and the connecting groove.

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