Square tube fin head of steel heating radiator

Abstract

The utility model discloses a square tube piece head of steel heating radiator relates to heating equipment technical field. It includes square casing, connecting terminal and adjusting assembly, and square casing top surface is sealed through square cap welding, and bottom surface is equipped with the mounting of conical platform structure, and the mounting is adapted to weld with square tube, can promote the convenience and sealing property of welding. The connecting terminal of square casing both sides realizes multiple piece head intercommunication through the screw bush, and the top end terminal is connected with the water inlet pipe and the air release valve respectively, and the bottom end terminal connects the water return pipe. The adjusting assembly at the bottom end square casing contains adjusting pipe, arc plate and driving part, and the adjusting pipe is seted up with the opening of decreasing flow area, and arc plate and opening cooperate and adjust flow rate, and driving part is driven through the hinged ball, and realizes sealing drive with the cooperation of sealing ring. The utility model solves the problem of poor welding reliability and no precise temperature control function of the existing square tube piece head, prolongs the service life of the heating radiator, and improves the functional applicability.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a square tube head for a steel radiator. Background Technology

[0002] Steel radiators are widely used in heating systems of residential and office buildings due to their high heat dissipation efficiency and moderate cost. The square tube end, as a core connecting component of the radiator, directly affects the welding strength, sealing performance, and service life of the radiator. Currently, steel radiator square tube ends on the market generally suffer from two major problems: Firstly, the connection reliability between the square tube and the square shell is insufficient. The mounting openings of existing square tube sections are mostly straight-walled structures, making it difficult to control the fit clearance with the tube end. The lack of an effective positioning reference during assembly leads to easy misalignment during welding. Furthermore, the absence of auxiliary welding structures around the mounting opening makes it prone to incomplete or missed welds during full welding operations, reducing connection strength and increasing the risk of hot water leakage. Especially under long-term hot and cold cycle conditions, stress cracking is likely to occur at the weld, significantly shortening the overall lifespan of the radiator and increasing maintenance and replacement costs for users.

[0003] Secondly, the temperature regulation function is lacking or incomplete. Traditional radiators mostly rely on external valves to control the total amount of water entering the radiator, and cannot make precise adjustments to the water flow inside the radiator, resulting in low room temperature control accuracy.

[0004] With the increasing demands for reliability and comfort in heating systems, there is an urgent need for a square tube radiator head structure that can solve the welding sealing problem and has precise adjustment function, so as to make up for the shortcomings of existing technology and improve the overall performance of steel radiators. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a square tube head for a steel radiator.

[0006] To achieve the above objectives, this utility model provides the following solution: A square tube end for a steel radiator is fixedly installed at both ends of two square tubes. Several square tube ends are interconnected. Each square tube end includes a square shell and two connecting terminals. The top surface of the square shell is open, and a square cap is fastened and welded to the top surface of the square shell. The bottom surface of the square shell has two mounting holes, which are welded and fixed to one end of the square tube. The two opposite sides of the square shell are respectively fixedly connected to and connected to the two connecting terminals. A threaded sleeve is screwed between two adjacent terminals. An air vent valve is screwed to the connecting terminal on the top side. The connecting terminal on the bottom side is fixedly connected to and connected to an external return water pipe. The connecting terminal on the other side of the top side is fixedly connected to and connected to an external inlet water pipe.

[0007] Preferably, the mounting port is a truncated cone structure, and the mounting port is spaced apart from the side wall of the square shell; one end of the square tube is adapted to the mounting port and welded.

[0008] Preferably, the square housing at the bottom end has an adjustment assembly extending through it. The adjustment assembly includes an adjustment tube, the outer side of which is adapted to and slidably connected to the inner wall of the connecting terminal. An arc plate is slidably connected to the portion of the adjustment tube inside the square housing, and the arc plate is fixedly connected to the opposite side wall of the square housing. Several openings are provided on the periphery of the portion of the adjustment tube inside the square housing, and the openings are detachably connected to the arc plate. A driving component is fixedly connected to one end of the adjustment tube, and the driving component is screwed to the connecting terminal at the bottom end.

[0009] Preferably, the driving component includes a fixed end, one end of which is screwed to the connecting terminal located at the bottom end; the fixed end has a cavity inside, and a hinge ball is rotatably connected to the cavity; one end of the hinge ball is fixedly connected to a connecting post, and the connecting post is fixedly connected to one end of the adjusting tube; the other end of the hinge ball is fixedly connected to a hinge post, and the hinge post passes through the fixed end and is detachably connected to a rocker plate.

[0010] Preferably, the fixed end includes a threaded ring, which is screwed to one end of the connecting terminal. One end of the threaded ring is fixedly connected to a first end body, and one end of the first end body is fixedly connected to a second end body by a bolt. A hemispherical groove is formed on one side of the first end body and one side of the second end body, and the two hemispherical grooves are respectively adapted to the hinge ball. One end of the hinge ball passes through the end face of the first end body and is welded to one end of the connecting post. A column groove is formed in the center of the second end body, and the column groove communicates with the hemispherical groove of the second end body. The column groove is adapted to the hinge post and is slidably connected.

[0011] Preferably, one end of the column groove of the second end body is provided with an annular groove, the annular groove is filled with a sealing ring, and the sealing ring is sleeved on the outside of the hinge column and disposed close to the hinge ball.

[0012] Preferably, the openings are provided in three places and are distributed on the outside of the regulating tube at 90° intervals.

[0013] Compared with the prior art, the present invention has the following advantages and technical effects: This invention allows for the mutual adaptation of the conical truncated structure mounting port at the bottom of the square tube head's inner cavity with one end of the conical truncated square tube. Furthermore, the flange structure formed around the mounting port facilitates electric welding of the square tube, and subsequent full welding improves the welding strength and sealing performance of the square tube and the square shell, thus extending the service life of the radiator using this square tube head. Simultaneously, an adjustment component is added at the bottom of the radiator, which can regulate the amount of hot water flowing downwards from the top, thereby achieving temperature regulation and enhancing the radiator's functionality. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a side view of the three-dimensional structure of the present invention; Figure 2 This is a side view of the three-dimensional structure of the square shell and the square tube; Figure 3 A side view of the three-dimensional structure of the adjustment component; Figure 4 This is a schematic diagram of the exploded structure at the fixed end; Figure 5 This is a side view of the three-dimensional structure of the square shell located at the bottom. Figure 6 This is a side view of the three-dimensional structure of the second end body.

[0015] The components are as follows: 1. Square shell; 2. Connecting terminal; 3. Square cap; 4. Mounting port; 5. Square tube; 6. Screw sleeve; 7. Vent valve; 8. Adjusting pipe; 9. Arc plate; 10. Opening; 11. Fixed end; 12. Hinge ball; 13. Connecting column; 14. Hinge column; 15. Rocking plate; 16. Threaded ring; 17. First end body; 18. Second end body; 19. Hemispherical groove; 20. Column groove; 21. Ring groove; 22. Sealing ring. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that all components in the technical solution of this application require necessary additional facilities for water supply, oil supply, power supply, and gas supply for driving and / or control. Unless otherwise stated, they are assumed to be used and equipped with existing technology and no special explanation is required.

[0018] It should be noted that, in order to make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] It should be noted that the fixed connection described in this utility model is one of the following: threaded connection, welding, riveting, interference fit connection and bonding; detachable connection means that the two are closed to each other or can be separated at any time; sliding connection means that the two slide against each other or slide against each other and cannot be separated; rotating connection means that the two rotate against each other through bearings or bushings and cannot be separated.

[0020] Example 1: Depend on Figure 1-6 The square tube heads of a steel radiator shown are fixedly installed at both ends of two square tubes 5. Several square tube heads are connected for use. Each square tube head includes a square shell 1 and two connecting terminals 2. The top surface of the square shell 1 is open, and a square cap 3 is fastened and welded to the top surface of the square shell 1. Two mounting holes 4 are opened on the bottom surface of the square shell 1, and the mounting holes 4 are welded and fixed to one end of the square tube 5. The two opposite sides of the square shell 1 are fixedly connected to and connected to the two connecting terminals 2. A screw sleeve 6 is screwed between two adjacent terminals. An air vent valve 7 is screwed and closed on the connecting terminal 2 located on the top side. The connecting terminal 2 located on the bottom side is fixedly connected to and connected to the external return water pipe. The connecting terminal 2 located on the other side of the top is fixedly connected to and connected to the external inlet water pipe.

[0021] The design was further optimized by designing the mounting port 4 as a conical truncated structure with a gap between the mounting port 4 and the side wall of the square shell 1. One end of the square tube 5 is fitted with and welded to the mounting port 4, which improves the fitting accuracy between the square tube 5 and the square shell 1 and facilitates the subsequent welding of the square shell 1 and the square tube 5.

[0022] Example 2: An adjustment assembly is added to the square shell 1 located at the bottom of the radiator. The adjustment assembly includes an adjustment pipe 8, the outer side of which is adapted to and slidably connected to the inner wall of the connecting terminal 2. An arc plate 9 is slidably connected to the inner part of the adjustment pipe 8 within the square shell 1, and the arc plate 9 is fixedly connected to the opposite side wall of the square shell 1. Several openings 10 are opened on the periphery of the inner part of the adjustment pipe 8 within the square shell 1, and the openings 10 are detachably connected to the arc plate 9. Three openings 10 are provided and distributed at 90° intervals on the outer side of the adjustment pipe 8. A driving component is fixedly connected to one end of the adjustment pipe 8, and the driving component is screwed to the connecting terminal 2 located at the bottom. Furthermore, since there are three openings 10 and the arc of the arc plate 9 is 270°, the openings of the adjustment pipe 8 can be divided into four opening degrees with 90° nodes. Furthermore, the effective flow area of ​​the opening 10 decreases sequentially by 1 / 3, enabling the hinge column 14 to be driven by the rocker plate 15, which in turn drives the hinge ball 12 to rotate. The hinge ball 12 further drives the connecting column 13, which in turn drives the regulating pipe 8 to rotate within the cavity of the connecting terminal 2. The side wall of the regulating pipe 8 and the arc plate 9 continuously change their relative positions, allowing different openings 10 to be exposed from below the arc plate 9, so that hot water can enter from the opening 10 and eventually flow out from the return pipe.

[0023] Further optimizing the design, the driving component includes a fixed end 11, one end of which is screwed to a connecting terminal 2 located at the bottom. A cavity is formed inside the fixed end 11, within which a hinge ball 12 is rotatably connected. One end of the hinge ball 12 is fixedly connected to a connecting post 13, which is fixedly connected to one end of the regulating pipe 8. The other end of the hinge ball 12 is fixedly connected to a hinge pin 14, which passes through the fixed end 11 and is detachably connected to a rocker plate 15. The hinge ball 12 is hinged to the fixed end 11, achieving a sealing structure similar to a ball valve. Furthermore, the rotation angle of the regulating pipe 8 can be changed by driving the hinge pin 14.

[0024] Further optimization of the scheme: the fixed end 11 includes a screw ring 16, which is screwed to one end of the connecting terminal 2. One end of the screw ring 16 is fixedly connected to a first end body 17. One end of the first end body 17 is fixedly connected to a second end body 18 by bolts. The end faces of the first end body 17 and the second end body 18 are fixedly connected by sealant and bolts. This connection method is existing technology and will not be described in detail here. One side of the first end body 17 and one side of the second end body 18 are respectively provided with hemispherical grooves 19, which are adapted to the hinge ball 12. One end of the hinge ball 12 passes through the end face of the first end body 17 and is welded to one end of the connecting post 13. A column groove 20 is provided in the center of the second end body 18. The column groove 20 is connected to the hemispherical groove 19 of the second end body 18. The column groove 20 is adapted to the hinge post 14 and is slidably connected. The second end body 18 has an annular groove 21 at one end of the column groove 20. The annular groove 21 is filled with a sealing ring 22, which is sleeved on the outside of the hinge column 14 and located close to the hinge ball 12. The sealing ring 22 can further seal the connection gap between the column groove 20 and the hinge column 14, supplementing the sealing connection between the hinge ball 12 and the hemispherical groove 19, and preventing hot water from leaking from the drive component.

[0025] The working process of this embodiment is as follows: A top opening is formed on the top surface of the square shell 1. The square cap 3 is fastened to the top opening and fixed by welding to achieve a top seal of the square shell 1. Two conical mounting ports 4 are stamped on the bottom surface of the square shell 1. The mounting ports 4 are spaced apart from the side wall of the square shell 1. This clearance fit and the conical structure can form a flange structure to assist welding. One end of the square tube 5 is machined into a conical structure that fits the mounting port 4. After being aligned with the mounting port 4 and inserted for initial positioning, the square tube 5 is then fully welded to the mounting port 4 by electric welding. The flange structure improves the convenience of welding operations and ensures welding strength and sealing performance.

[0026] The two opposite sides of the square shell 1 are fixedly connected to and communicate with two connecting terminals 2 respectively. The adjacent connecting terminals 2 of two adjacent square tube heads are screwed together with threaded sleeves 6 to realize the series connection of multiple square tube heads. The connecting terminal 2 located on the top side is sealed with an air release valve 7 by screwing to release the air in the system; the connecting terminal 2 located on the other side of the top is fixedly connected to the external water inlet pipe, and the connecting terminal 2 on the bottom side is fixedly connected to the external water return pipe, forming a complete water flow loop.

[0027] An adjustment assembly is installed at the bottom of the square shell 1 of the radiator: the outer side of the adjustment pipe 8 is adapted to and slidably connected to the inner wall of the bottom connection terminal 2. Three openings 10 are opened at 90° intervals on the periphery of the portion of the pipe 8 located inside the square shell 1, and the effective flow area of ​​the openings 10 decreases by 1 / 3 in successive increments. An arc plate 9 with a radius of 270° is fixedly connected to the opposite side wall of the square shell 1. The adjustment pipe 8 passes through the arc plate 9 to achieve a slidable connection, and the openings 10 can form a shielding fit with the arc plate 9. The fixed end 11 of the drive component is screwed to the bottom connection terminal 2 by a screw ring 16. The fixed end 11 is formed by the first end body 17 and the second end body 18 sealed together by bolts and sealant. The hemispherical grooves 19 on the opposite end faces of the two components together form a cavity that adapts to the hinge ball 12. The hinge ball 12 is connected to the cavity by frictional rotation. The connecting post 13 at one end of the hinge ball 12 is welded and fixed to one end of the adjusting tube 8. The hinge post 14 at the other end passes through the post groove 20 of the second end body 18. The sealing ring 22 is filled in the annular groove 21 at the end of the post groove 20 and sleeved on the outside of the hinge post 14. Finally, the rocker plate 15 is detachably connected to the end of the hinge post 14.

[0028] In use, rotating the rocker 15 drives the hinge column 14 to rotate, which in turn drives the hinge ball 12 to rotate within the hemispherical groove 19. This, in turn, drives the regulating pipe 8 to rotate within the connecting terminal 2 via the connecting column 13. During the rotation of the regulating pipe 8, the relative position of the opening 10 and the arc plate 9 changes continuously. Openings 10 with different flow areas protrude from below the arc plate 9, achieving four opening degree adjustments with 90° as the node. This controls the amount of hot water flowing in from the top, thereby achieving the purpose of regulating the heating temperature.

[0029] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A square tube end of a steel radiator, respectively fixedly installed at both ends of two square tubes (5), characterized in that, The square tube segments are connected and used in several ways. Each square tube segment includes a square shell (1) and two connecting terminals (2). The top surface of the square shell (1) is open. A square cap (3) is fastened and welded to the top surface of the square shell (1). Two mounting holes (4) are opened on the bottom surface of the square shell (1). The mounting holes (4) are welded and fixed to one end of the square tube (5). The two opposite sides of the square shell (1) are respectively fixed and connected to the two connecting terminals (2). A screw sleeve (6) is screwed between two adjacent terminals. A vent valve (7) is screwed closed to the connecting terminal (2) on the top side. The connecting terminal (2) on the bottom side is fixed and connected to the external return water pipe. The connecting terminal (2) on the other side of the top is fixed and connected to the external inlet water pipe.

2. The square tube head of the steel radiator according to claim 1, characterized in that: The mounting port (4) is a conical truncated structure, and the mounting port (4) is spaced apart from the side wall of the square shell (1); one end of the square tube (5) is adapted to the mounting port (4) and welded.

3. The square tube end of the steel radiator according to claim 1, characterized in that: An adjustment assembly is passed through the square housing (1) at the bottom end. The adjustment assembly includes an adjustment tube (8). The outer side of the adjustment tube (8) is adapted to and slidably connected to the inner wall of the connecting terminal (2). An arc plate (9) is slidably connected to the inner part of the adjustment tube (8) in the square housing (1). The arc plate (9) is fixedly connected to the opposite side wall of the square housing (1). Several openings (10) are opened on the periphery of the inner part of the adjustment tube (8). The openings (10) are detachably connected to the arc plate (9). A driving member is fixedly connected to one end of the adjustment tube (8). The driving member is screwed to the connecting terminal (2) at the bottom end.

4. The square tube head of the steel radiator according to claim 3, characterized in that: The driving component includes a fixed end (11), one end of which is screwed to the connecting terminal (2) located at the bottom end; a cavity is opened inside the fixed end (11), and a hinge ball (12) is rotatably connected in the cavity; a connecting post (13) is fixedly connected to one end of the hinge ball (12), and the connecting post (13) is fixedly connected to one end of the adjusting tube (8); a hinge column (14) is fixedly connected to the other end of the hinge ball (12), and the hinge column (14) passes through the fixed end (11) and is detachably connected to a rocker plate (15).

5. The square tube head of the steel radiator according to claim 4, characterized in that: The fixed end (11) includes a threaded ring (16), which is screwed to one end of the connecting terminal (2). One end of the threaded ring (16) is fixedly connected to a first end body (17), and one end of the first end body (17) is fixedly connected to a second end body (18) by a bolt. One side of the first end body (17) and one side of the second end body (18) are respectively provided with hemispherical grooves (19), and the two hemispherical grooves (19) are respectively adapted to the hinge ball (12). One end of the hinge ball (12) passes through the end face of the first end body (17) and is welded to one end of the connecting post (13). The center of the second end body (18) is provided with a column groove (20), which is connected to the hemispherical groove (19) of the second end body (18). The column groove (20) is adapted to the hinge post (14) and is slidably connected.

6. The square tube end of the steel radiator according to claim 5, characterized in that: The second end body (18) has an annular groove (21) at one end of the column groove (20), and the annular groove (21) is filled with a sealing ring (22). The sealing ring (22) is sleeved on the outside of the hinge column (14) and is set close to the hinge ball (12).

7. The square tube head of the steel radiator according to claim 3, characterized in that: The opening (10) is provided in three parts and is distributed on the outside of the regulating tube (8) at 90° intervals.

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