Elbow pipe spring fixing device

Abstract

The utility model relates to the field of bent pipe springs, in particular to a bent pipe spring fixing device which comprises an iron conical end, a bent pipe spring body is arranged on one side of the iron conical end, and a fixing hole is formed in the surface of the iron conical end. The fixing assembly is arranged on the surface of the iron conical end; by means of the iron conical end and the fixing assembly on the surface of the iron conical end, the end of the bent pipe spring body can be positioned at the end of a pipe when a person inserts the bent pipe spring body into the pipe for shaping, the fixing effect is achieved, and the situation that the spring slides due to extrusion force in the bending process and deviates from the bending position can be prevented; the bending effect of the pipe is influenced; by arranging the locking sleeve on the surface of the connecting sleeve and forming the molding groove, the pipe bending spring can be suitable for pipelines with large calibers and wall thicknesses, the adaptability and variability of the pipe bending spring are improved, and meanwhile certain convenience can be provided for operators.

Description

Technical Field

[0001] The utility model relates to the field of elbow springs, and particularly to a fixing device for an elbow spring. Background Art

[0002] An elbow spring is a spring tool used for bending pipes, which helps to maintain the circular cross-section of the pipe during the bending process and prevent distortion or flattening. It is usually made of wear-resistant materials, and the inner diameter is designed to match the pipe to provide stable support. Using an elbow spring can ensure that the bent pipe maintains a uniform shape and improve the process accuracy.

[0003] During the elbow bending process, the elbow spring, as an important auxiliary tool, is mainly used to prevent the pipe from deforming during the bending process. Its working principle is to insert the spring into the pipe, and the circular cross-section of the pipe is maintained by the supporting force of the spring, so as to ensure that the shape of the bent pipe is uniform. However, traditional elbow springs usually do not have a fixing structure and only rely on the matching of the outer diameter of the spring and the inner diameter of the pipe for positioning. However, by relying solely on the above method, the spring is prone to sliding or inaccurate positioning during actual operation, resulting in unstable bending effects and even affecting the quality of the final product.

[0004] Therefore, a fixing device for an elbow spring is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixing device for an elbow spring to solve the above problems, and improve the problems that traditional elbow springs lack a fixing structure, are prone to sliding and displacement in the pipe, and are prone to affecting the quality of elbow bending processing.

[0006] The utility model realizes the above purpose through the following technical solutions. A fixing device for an elbow spring includes: an iron conical end, on one side of which an elbow spring body is arranged, and fixing holes are opened on the surface of the iron conical end;

[0007] A fixing component, which is arranged on the surface of the iron conical end;

[0008] Among them, the fixing component includes a connecting sleeve sleeved on the surface of the iron conical end, and spiral threads are arranged on the surface of the connecting sleeve.

[0009] Preferably, a locking sleeve is arranged on the surface of the connecting sleeve. Through the locking sleeve, the connecting sleeve can be tightened, so that the connecting sleeve can be fixed to the pipe through a rectangular extrusion block. A spiral groove is opened in the inner cavity of the locking sleeve, and the inner cavity of the spiral groove corresponds to the spiral threads.

[0010] Preferably, anti-slip bumps are provided on the surface of the locking sleeve. The anti-slip bumps are located on the surface of the locking sleeve, and their function is to prevent people from slipping off when turning the locking sleeve. A number of anti-slip bumps are arranged in an annular array.

[0011] Preferably, shaping grooves are provided on the surface of the connecting sleeve. The shaping grooves are located on the surface of the connecting sleeve, and their function is to assist the connecting sleeve in wrapping pipes with different diameters and wall thicknesses. Three shaping grooves are arranged in a rectangular array.

[0012] Preferably, a connecting block is fixedly connected to one side of the connecting sleeve. The connecting block is located on one side of the connecting sleeve, and its function is to cooperate with bolts to facilitate the installation of the connecting sleeve on the surface of the iron conical end by personnel. A bolt is threadedly connected to the inner cavity of the connecting block, and the surface of the bolt is threadedly connected to the inner cavity of the fixing hole.

[0013] Preferably, a rectangular extrusion block is fixedly connected to the inner cavity of the connecting sleeve. The rectangular extrusion block is located in the inner cavity of the connecting sleeve, and its function is to fix the connecting sleeve and the pipe through friction when personnel tighten the connecting sleeve. Rubber bumps are provided on the surface of the rectangular extrusion block.

[0014] Preferably, a hook is fixedly connected to one side of the iron conical end. The hook is located on one side of the iron conical end, and its function is to facilitate pulling out the elbow spring body when it is necessary to extend the entire elbow spring body into the pipe. The hook is made of stainless steel.

[0015] The beneficial effects of the present utility model are:

[0016] 1. Through the iron conical end and the fixing components on its surface, the end of the elbow spring body can be positioned at the end of the pipe when personnel insert the elbow spring body into the pipe for plastic shaping, achieving a fixing effect, which can prevent the spring from sliding and displacing due to the extrusion force during bending, resulting in deviation from the bending position and affecting the bending effect of the pipe;

[0017] 2. By providing a locking sleeve and shaping grooves on the surface of the connecting sleeve, it can be applicable to pipes with larger diameters and wall thicknesses, improving the adaptability and variability of the elbow spring, and at the same time providing certain convenience for operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is a side view structural schematic diagram of the present utility model;

[0020] Figure 3 is a disassembled structural schematic diagram of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structural disassembly of the connecting sleeve and the locking sleeve of the present utility model.

[0022] In the figure: 1. Iron conical end; 2. Elbow spring body; 3. Fixing component; 301. Connecting sleeve; 302. Connecting block; 303. Bolt; 304. Thread; 305. Locking sleeve; 306. Anti-slip convex block; 307. Spiral groove; 308. Rectangular extrusion block; 309. Plastic forming groove; 4. Fixing hole; 5. Hook. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] During specific implementation: as Figures 1-4 shown, an elbow spring fixing device includes: an iron conical end 1, a side of the iron conical end 1 is provided with an elbow spring body 2, and a fixing hole 4 is opened on the surface of the iron conical end 1;

[0025] A fixing component 3 is arranged on the surface of the iron conical end 1.

[0026] Before use, personnel can decide whether to use the fixing component 3 according to specific circumstances. If the processed pipe is short and the length of the elbow spring body 2 is equal to or greater than the length of the pipe, then only the elbow spring body 2 needs to be inserted into the pipe for bending treatment, and the problem of spring slippage does not need to be considered. Similarly, if personnel need to bend a pipe with a length greater than the elbow spring body 2 or a pipe buried in the soil for maintenance, then personnel need to sleeved the connecting sleeve 301 of the fixing component 3 on the surface of the iron conical end 1, and then pass the bolt 303 through the connecting block 302 and screw it into the fixing hole 4 of the iron conical end 1 to install the fixing component 3.

[0027] When personnel bend some long pipes, they can select an elbow spring body 2 with a suitable diameter and length according to specific circumstances. The material of the iron conical end 1 of the elbow spring body 2 is generally an iron conical end 1, and the recommended connection method with the elbow spring body 2 is welding.

[0028] Such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, the fixing component 3 includes a connecting sleeve 301 sleeved on the surface of the iron conical end 1, and a spiral thread 304 is arranged on the surface of the connecting sleeve 301; a locking sleeve 305 is arranged on the surface of the connecting sleeve 301, and a spiral groove 307 is opened in the inner cavity of the locking sleeve 305, and the inner cavity of the spiral groove 307 corresponds to the spiral thread 304; anti-slip bumps 306 are arranged on the surface of the locking sleeve 305, and a plurality of anti-slip bumps 306 are arranged in an annular array; a shaping groove 309 is opened on the surface of the connecting sleeve 301, and three shaping grooves 309 are arranged in a rectangular array; a connecting block 302 is fixedly connected to one side of the connecting sleeve 301, a bolt 303 is threadedly connected in the inner cavity of the connecting block 302, and the surface of the bolt 303 is threadedly connected with the inner cavity of the fixing hole 4; a rectangular extrusion block 308 is fixedly connected in the inner cavity of the connecting sleeve 301, and rubber bumps are arranged on the surface of the rectangular extrusion block 308.

[0029] First, the operator inserts the iron conical end 1 and drives the bent pipe spring body 2 into the interior of the pipe. When the inner cavity of the connecting sleeve 301 on the surface of the iron conical end 1 contacts the pipe wall thickness, the surface of the pipe contacts the rectangular extrusion block 308, and the rubber bumps on the surface of the rectangular extrusion block 308 contact the surface of the pipe and increase a certain frictional force. At the same time, the connecting sleeve 301 will also be expanded. At this time, the operator can twist the locking sleeve 305 on the surface of the connecting sleeve 301, and the connecting sleeve 301 will gradually contract to squeeze and position the pipe through the rectangular extrusion block 308, so as to achieve the effect of fixing the bent pipe spring body 2.

[0030] Through the rubber convex points arranged on the surface of the rectangular extrusion block 308 as described above, when the operator bends the pipe and the bent pipe spring body 2 together, the elastic characteristic of the rubber material can be utilized to offset the extrusion force of the bent pipe spring body 2 in cooperation with the frictional force on the surface of the pipe, preventing the phenomenon that the bent pipe spring body 2 slips off.

[0031] Through the shaping groove 309 opened on the surface of the connecting sleeve 301 as described above, when the connecting sleeve 301 is sleeved on the surface of the pipe, the connecting sleeve 301 can be expanded by the pipe wall thickness, so that the connecting sleeve 301 can be applicable to pipes with larger diameters and wall thicknesses, thereby improving the functionality of the connecting sleeve 301.

[0032] A hook 5 is fixedly connected to one side of the iron conical end 1, and the hook 5 is made of stainless steel.

[0033] Through the hook 5 arranged at the iron conical end 1 as described above, when the operator inserts the bent pipe spring body 2 into a pipe with a length greater than the length of the bent pipe spring body 2, the hook 5 of the iron conical end 1 can be tied with a wire or a rope. In this way, after bending, it is convenient for the operator to pull out the bent pipe spring body 2, preventing the bent pipe spring body 2 from being left in the pipe.

[0034] By providing a spiral pattern 304 on the surface of the connecting sleeve 301 and a spiral groove 307 inside the locking sleeve 305, when the connecting sleeve 301 is supported by the pipe, a person can gradually apply pressure to the supported part of the connecting sleeve 301 by twisting the locking sleeve 305, so that the connecting sleeve 301 is contracted and cooperates with the rectangular extrusion block 308 to contact the pipe, thereby achieving a quick fixing effect.

[0035] When the utility model is in use, during the pipe bending process, firstly, a person drives the iron conical end head 1 to insert the pipe bending spring body 2 into the interior of the pipe. When the inner cavity of the connecting sleeve 301 on the surface of the iron conical end head 1 contacts the wall thickness of the pipe, the surface of the pipe contacts the rectangular extrusion block 308, and the rubber protrusions on the surface of the rectangular extrusion block 308 contact the surface of the pipe and increase a certain friction force. At the same time, the connecting sleeve 301 will also be stretched open. At this time, a person can twist the locking sleeve 305 on the surface of the connecting sleeve 301, and the connecting sleeve 301 will gradually shrink to extrude and position the pipe through the rectangular extrusion block 308, thereby achieving the effect of fixing the pipe bending spring body 2, and can effectively prevent the spring from slipping inside the pipe due to the extrusion force when bending.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bent tube spring fixing device, characterized in that: include: An iron conical end head (1), a bent tube spring body (2) is arranged on one side of the iron conical end head (1), and a fixing hole (4) is opened on the surface of the iron conical end head (1); A fixing component (3), wherein the fixing component (3) is arranged on the surface of the iron conical end (1); The fixing assembly (3) comprises a connecting sleeve (301) sleeved on the surface of the iron conical end (1), and the surface of the connecting sleeve (301) is provided with a spiral pattern (304).

2. A bent tube spring fixing device according to claim 1, characterized in that: A locking sleeve (305) is provided on the surface of the connecting sleeve (301), and a spiral groove (307) is provided in the inner cavity of the locking sleeve (305), and the inner cavity of the spiral groove (307) corresponds to the spiral pattern (304).

3. A bent tube spring fixing device according to claim 2, characterized in that: The surface of the locking sleeve (305) is provided with anti-skid bumps (306), and a plurality of the anti-skid bumps (306) are arranged in a ring array.

4. A bent tube spring fixing device according to claim 1, characterized in that: The surface of the connecting sleeve (301) is provided with molding grooves (309), and three molding grooves (309) are provided in a rectangular array.

5. The bent tube spring fixing device according to claim 1, characterized in that: A connecting block (302) is fixedly connected to one side of the connecting sleeve (301), a bolt (303) is threadedly connected to the inner cavity of the connecting block (302), and a surface of the bolt (303) is threadedly connected to the inner cavity of the fixing hole (4).

6. A bent tube spring fixing device according to claim 1, characterized in that: A rectangular extrusion block (308) is fixedly connected to the inner cavity of the connecting sleeve (301), and rubber protrusions are arranged on the surface of the rectangular extrusion block (308).

7. A bent tube spring fixing device according to claim 1, characterized in that: A hook (5) is fixedly connected to one side of the iron conical end (1), and the hook (5) is made of stainless steel.

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