Steam joint screw

Abstract

The utility model relates to the technical field of steam joint screws, in particular to a steam joint screw which comprises a body pipe, one end of the body pipe is provided with external threads, the other end of the body pipe is provided with a fixing mechanism used for fixing a hose, and the fixing mechanism comprises an inner cavity sliding block and an outer sliding block. The inner cavity sliding block is connected into the body pipe in a sliding mode and makes contact with the inner wall of the body pipe, the outer sliding block is arranged on the outer wall of the body pipe in a sleeving mode and is in sliding connection with the body pipe, the end, close to the outer side, of the inner cavity sliding block is fixed to the outer sliding block, and a plurality of hollowed-out parts are formed in the outer wall of the outer sliding block. The hose fixed to a steam joint screw can be further fixed through the fixing mechanism, an inner cavity sliding block is pushed to move towards the outer side through steam pressure, an outer sliding block drives an ejection block to make contact with an inclined surface block, one end of the ejection block continuously gets close to the inner wall of the hose, and the hose is further fixed; and steam pressure is effectively prevented from pushing the hose out of the steam joint screw.

Description

Technical Field

[0001] The utility model relates to the technical field of steam joint screws, and specifically relates to a steam joint screw. Background Art

[0002] Steam joint screws are important components used to connect steam pipelines or equipment. They come in various types and specifications and are widely used in the industrial field. Steam joint screws are usually made of high-quality materials such as stainless steel or brass to ensure their corrosion resistance and durability. Their designs take into account high-temperature and high-pressure working environments, so they have excellent sealing performance and pressure-bearing capacity.

[0003] Steam joint screws are often connected to high-temperature resistant hoses for conveying and connecting. However, existing steam joint screws do not have a good fixing structure. After the hose is fixed, due to excessive steam pressure, the connection between the hose and the steam joint screw may become loose, resulting in detachment. In response to the above problems, this application designs a steam joint screw. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a steam joint screw.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A steam joint screw includes a main body pipe. One end of the main body pipe is provided with an external thread, and the other end of the main body pipe is provided with a fixing mechanism for fixing a hose. The fixing mechanism includes an inner cavity slider and an outer slider. The inner cavity slider is slidably connected inside the main body pipe and contacts its inner wall. The outer slider is sleeved on the outer wall of the main body pipe and is slidably connected thereto. The outer end of the inner cavity slider is fixed to the outer slider. A plurality of hollowings are provided on the outer wall of the outer slider. On both side walls of the outer slider at the positions of the hollowings, shaking grooves are provided. At the positions of the hollowings on the outer slider, top blocks are provided. On both sides of each top block, clamping columns are fixed. The clamping columns are located in the corresponding shaking grooves. The size of the shaking grooves is larger than that of the clamping columns. On the outer wall of the main body pipe, on one side of the fixing mechanism, a plurality of inclined plane blocks are fixed. The inclined plane blocks are located on the left side of the corresponding top blocks. The top end of the inclined plane block is an inclined plane with the outer end being higher.

[0008] To prevent the fixing mechanism from falling off, the utility model is improved in that a plurality of limiting sliding grooves are provided on the outer wall of the main body pipe, and a plurality of limiting blocks are fixed on the side of the outer slider that contacts the outer wall of the main body pipe. The limiting blocks are slidably connected in the corresponding limiting sliding grooves.

[0009] In order to enhance the frictional force between the top block and the inner wall of the hose, the present utility model is improved in that a plurality of raised ridges are provided on the outer surface of the top block.

[0010] In order to ensure the airtightness after the connection of the hose, the present utility model is improved in that a spherical sealing block is fixed at the middle position on the outer wall of the main body pipe.

[0011] In order to prevent the steam joint screw from loosening, the present utility model is improved in that a fixing nut is threadedly connected to the main body pipe at the external thread.

[0012] In order to improve the airtightness at the connection of the steam joint screw, the present utility model is improved in that a leak-proof rubber ring is fixed on the fixing nut.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present utility model provides a steam joint screw, which has the following beneficial effects:

[0015] For this steam joint screw, through the fixing mechanism, further fixing of the hose fixed on the steam joint screw can be achieved. By the steam pressure, the inner cavity slider is pushed to move outward, so that the outer slider drives the top block to contact the inclined surface block, and one end of the top block continuously approaches the inner wall of the hose, further fixing the hose, effectively preventing the steam pressure from pushing the hose out of the steam joint screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first front view structural schematic diagram of the present utility model;

[0017] Figure 2 is the first partial structural schematic diagram of the present utility model;

[0018] Figure 3 is the second partial structural schematic diagram of the present utility model;

[0019] Figure 4 is the third partial structural schematic diagram of the present utility model.

[0020] In the figure: 1, main body pipe; 2, external thread; 3, inner cavity slider; 4, outer slider; 5, shaking groove; 6, top block; 7, positioning column; 8, inclined surface block; 9, limiting sliding groove; 10, limiting block; 11, raised ridge; 12, spherical sealing block; 13, fixing nut; 14, leak-proof rubber ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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 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.

[0022] Please refer to Figures 1-4 , a steam joint screw, comprising a body tube 1, one end of the body tube 1 is provided with an external thread 2, and the other end of the body tube 1 is provided with a fixing mechanism for fixing a hose. The fixing mechanism includes an inner cavity slider 3 and an outer slider 4. The inner cavity slider 3 is slidably connected inside the body tube 1 and contacts its inner wall. The outer slider 4 is sleeved on the outer wall of the body tube 1 and is slidably connected thereto. The outer end of the inner cavity slider 3 is fixed to the outer slider 4. A plurality of hollowings are provided on the outer wall of the outer slider 4. Shaking grooves 5 are provided on both side walls of the outer slider 4 at the positions of the hollowings. Top blocks 6 are provided at the positions of the hollowings on the outer slider 4. Both sides of the top block 6 are fixed with clamping posts 7. The clamping posts 7 are located in the corresponding shaking grooves 5. The size of the shaking groove 5 is larger than that of the clamping post 7. A plurality of inclined blocks 8 are fixed on the outer wall of the body tube 1 on one side of the fixing mechanism. The inclined blocks 8 are located on the left side of the corresponding top blocks 6. The top end of the inclined block 8 is provided with an inclined surface that is higher at the outer end.

[0023] When this steam joint screw is in use, the hose is sleeved on the steam joint screw for preliminary fixation. When steam enters the hose through the steam joint screw, the steam pressure pushes the inner cavity slider 3 to move outward. The inner cavity slider 3 drives the outer slider 4 to move outward. The outer slider 4 drives a plurality of top blocks 6 to approach the inclined blocks 8. The top blocks 6 contact the inclined blocks 8. One end of the top block 6 slides on the top end of the inclined block 8. Under the action of force, one end of the top block 6 continuously moves toward the inner wall of the hose and expands outward, and contacts the inner wall of the hose to further internally clamp and fix the hose.

[0024] In actual use, it is found that in order to prevent the fixing mechanism from falling off, in this embodiment, a plurality of limiting sliding grooves 9 are provided on the outer wall of the body tube 1. A plurality of limiting blocks 10 are fixed on one side of the outer slider 4 that contacts the outer wall of the body tube 1. The limiting blocks 10 are slidably connected in the corresponding limiting sliding grooves 9.

[0025] In actual use, it is found that after the top block 6 contacts the inner wall of the hose, it may slide due to insufficient friction. In order to enhance the friction, in this embodiment, a plurality of raised edges 11 are provided on the outer surface of the top block 6.

[0026] In actual use, it is found that after the hose is fixed to the steam joint screw, the airtightness is poor. To solve the above problems, in this embodiment, a spherical sealing block 12 is fixed at the middle position on the outer wall of the main body pipe 1.

[0027] In actual use, it is found that the steam joint screw is prone to loosening after being fixed. To avoid the above problems, in this embodiment, a fixing nut 13 is threadedly connected to the main body pipe 1 at the external thread 2.

[0028] In actual use, it is found that air leakage is likely to occur at the fixing position of the steam joint screw. To avoid the above problems, in this embodiment, a leak-proof rubber ring 14 is fixed on the fixing nut 13.

[0029] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, the following will be described in detail with reference to the specific examples listed and in conjunction with the drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0030] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The term "embodiment" that appears in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0031] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam joint screw, comprising a body tube (1), characterized in that: One end of the main body tube (1) is provided with an external thread (2), and the other end of the main body tube (1) is provided with a fixing mechanism for fixing the hose, the fixing mechanism comprising an inner cavity slider (3) and an outer slider (4), the inner cavity slider (3) is slidably connected inside the main body tube (1) and contacts the inner wall thereof, the outer slider (4) is sleeved on the outer wall of the main body tube (1) and slidably connected thereto, the outer end of the inner cavity slider (3) is fixed to the outer slider (4), a plurality of hollows are provided on the outer wall of the outer slider (4), and a plurality of hollows are provided on the outer slider (4). The side walls of the device are provided with shaking grooves (5), the outer sliding block (4) is provided with a top block (6) at a hollow position, and the top blocks (6) are fixed with a locking column (7) on both sides of the top block (6), and the locking column (7) is located in the shaking groove (5) at a corresponding position, and the shaking groove (5) is larger than the locking column (7). A plurality of inclined plane blocks (8) are fixed on the outer wall of the main body tube (1) at one side of the fixing mechanism, and the inclined plane block (8) is located on the left side of the top block (6) at a corresponding position, and the top end of the inclined plane block (8) is set as an inclined plane that is higher at the outer end.

2. A steam joint screw according to claim 1, characterized in that: A plurality of limiting sliding grooves (9) are provided on the outer wall of the main body tube (1), and a plurality of limiting blocks (10) are fixed on the side of the outer sliding block (4) in contact with the outer wall of the main body tube (1), wherein the limiting blocks (10) are slidably connected in the limiting sliding grooves (9) at corresponding positions.

3. A steam joint screw according to claim 2, characterized in that: The outer surface of the top block (6) is provided with a plurality of raised edges (11).

4. A steam joint screw according to claim 3, characterized in that: A spherical sealing block (12) is fixed at a middle position on the outer wall of the main body tube (1).

5. A steam joint screw according to claim 4, characterized in that: A fixing nut (13) is threadedly connected to the external thread (2) on the main body tube (1).

6. A steam joint screw according to claim 5, characterized in that: A leak-proof rubber ring (14) is fixed on the fixing nut (13).

Images