Oxygen and acetylene pipe joint protection device

Abstract

The utility model discloses an oxygen and acetylene pipe joint protection device which comprises a torsion spring, the inner side of an annular cylinder and the inner side of a metal joint are movably connected with the outer side of a leather hose, a plurality of clamping blocks are installed on the inner side of the leather hose, and the outer sides of the clamping blocks are movably connected with grooves in the outer side of the annular cylinder. The outer side of the clamping block is provided with a first thread and a second thread which are in threaded connection with each other, and the first thread and the second thread are formed in the inner side of the connecting sleeve and the outer side of the metal connector respectively. The utility model relates to the technical field of joint connecting tools, through the matching among the connecting sleeve, the first thread and the clamping block, the positioning between the metal joint and the oxyacetylene leather hose is realized, the stability of the metal joint and the oxyacetylene leather hose is ensured, the joint is protected and the separation of the metal joint and the oxyacetylene leather hose is avoided; the problems that an existing device is poor in stability after an oxyacetylene leather hose and a metal connector are connected, leakage of inflammable gas is easily caused after the oxyacetylene leather hose and the metal connector are disconnected, and safety is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of joint connection tools, in particular to a protective device for oxygen and acetylene pipe joints. Background Art

[0002] During the manufacturing, installation and maintenance of equipment, oxyacetylene is often used for metal cutting and welding. The connections at both ends of the oxygen and acetylene hoses, i.e., the connection at the outlet of the oxyacetylene pressure reducing gauge, the connection of the cutting tool and the welding tool, are prone to damage, breakage and leakage due to frequent movements and angle limitations, which brings inconvenience to the operators and poses a safety hazard. Therefore, an oxygen and acetylene pipe joint protection device is provided.

[0003] In the prior art, a connecting sleeve and a torsion spring are provided to protect and connect the joint position, and the oxyacetylene hose and the metal joint are connected inside the connecting sleeve.

[0004] However, the existing device has poor stability after the oxyacetylene hose and the metal joint are connected, and it is easy to cause leakage of flammable gas after disconnection, which reduces safety. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an oxygen and acetylene pipe joint protection device, which solves the problems of poor stability after the connection of the oxygen-acetylene leather hose and the metal joint of the prior device, easy leakage of flammable gas after disconnection, and reduced safety.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an oxygen and acetylene pipe joint protection device, including a torsion spring, a connecting sleeve is installed at the bottom of the torsion spring, a metal joint and a leather hose are arranged inside the connecting sleeve, a positioning mechanism is arranged inside the connecting sleeve, the positioning mechanism includes an annular cylinder, a clamping block, a first thread and a second thread, the outer side of the annular cylinder is fixedly connected to the inner side of the metal joint, the inner sides of the annular cylinder and the metal joint are movably connected to the outer side of the leather hose, a plurality of clamping blocks are installed on the inner side of the leather hose, the outer sides of the plurality of clamping blocks are movably connected to the outer grooves of the annular cylinder, the outer side of the clamping block is provided with a first thread and a second thread which are threadedly connected to each other, and the first thread and the second thread are respectively opened on the inner side of the connecting sleeve and the outer side of the metal joint.

[0007] Preferably, the inner annular groove of the metal joint is movably connected with a sealing ring, and the inner side of the sealing ring is in contact with the outer side of the leather tube.

[0008] Preferably, a plurality of rubber protrusions are fixedly connected to the outer side of the sealing ring, and the outer sides of the rubber protrusions are movably connected to the inner grooves of the metal joint.

[0009] Preferably, the plurality of rubber protrusions are equidistantly distributed on the outer side of the sealing ring.

[0010] Preferably, a rubber sleeve is fixedly connected to the outer side of the torsion spring via two elastic members.

[0011] Beneficial Effects

[0012] The utility model provides an oxygen and acetylene pipe joint protection device. It has the following beneficial effects: the oxygen and acetylene pipe joint protection device realizes the positioning between the metal joint and the oxygen-acetylene leather hose through the cooperation between the connecting sleeve, the first thread and the clamping block, ensures the stability of the two, and avoids the separation of the two while protecting the joint, solving the problem that the stability of the oxygen-acetylene leather hose and the metal joint after connection is poor in the existing device, and the leakage of flammable gas is easily caused after disconnection, which reduces the safety.

[0013] Through the coordination among the torsion spring, the elastic member and the sealing ring, the sealing performance between the metal joint and the leather hose is improved, thereby avoiding the leakage of the combustible gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the middle elastic member and the rubber sleeve;

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the middle connecting sleeve, the first thread and the clamping block;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the torsion spring, elastic part and leather hose.

[0018] In the figure: 1, torsion spring, 2, elastic member, 3, rubber sleeve, 4, leather tube, 5, connecting sleeve, 6, metal joint, 7, first thread, 8, second thread, 9, clamping block, 10, rubber protrusion, 11, sealing ring, 12, annular cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The existing device has poor stability after the oxyacetylene hose and the metal joint are connected, and it is easy to cause leakage of flammable gas after disconnection, which reduces safety.

[0021] In view of this, a protection device for oxygen and acetylene pipe joints is provided. Through the cooperation between the connecting sleeve, the first thread and the clamping block, the positioning between the metal joint and the oxygen-acetylene hose is realized, the stability of the two is ensured, and the separation of the two is avoided while protecting the joint. The problem that the stability of the oxygen-acetylene hose and the metal joint after connection in the existing device is poor, and the leakage of flammable gas is easily caused after disconnection, thereby reducing safety is solved.

[0022] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0023] Embodiment 1: By Figure 1 and 3 It can be seen that an oxygen and acetylene pipe joint protection device includes a torsion spring 1, a connecting sleeve 5 is installed at the bottom of the torsion spring 1, a metal joint 6 and a leather tube 4 are arranged inside the connecting sleeve 5, and a positioning mechanism is arranged inside the connecting sleeve 5. The positioning mechanism includes an annular cylinder 12, a clamping block 9, a first thread 7 and a second thread 8. The outer side of the annular cylinder 12 is fixedly connected to the inner side of the metal joint 6, and the inner sides of the annular cylinder 12 and the metal joint 6 are movably connected to the outer side of the leather tube 4. A plurality of clamping blocks 9 are installed on the inner side of the leather tube 4, and the outer sides of the plurality of clamping blocks 9 are movably connected to the outer groove of the annular cylinder 12. The clamping block 9 can be clamped in the outer groove of the annular cylinder 12 for positioning. Since the leather tube 4 has a certain elastic force, the leather tube 4 is compressed and clamped in the outer groove of the annular cylinder 12 for positioning after insertion. The outer side of the clamping block 9 is provided with a first thread 7 and a second thread 8 which are threadedly connected to each other. The first thread 7 and the second thread 8 are respectively opened on the inner side of the connecting sleeve 5 and the outer side of the metal joint 6. The user can rotate the metal joint 6 to connect with the connecting sleeve 5;

[0024] In the specific implementation process, it is worth pointing out that the positioning between the metal joint 6 and the leather tube 4 is achieved through the cooperation between the clamping block 9, the first thread 7 and the second thread 8, ensuring the stability of the two, avoiding the separation of the two while protecting the joint, and solving the problem that the stability of the existing device after the oxyacetylene leather tube 4 and the metal joint 6 are poor, and the leakage of flammable gas is easy to cause after disconnection, which reduces the safety;

[0025] Specifically, when using the oxygen and acetylene pipe joint protection device, the user can rotate the metal joint 6 to connect with the connecting sleeve 5. After rotation, the leather tube 4 can be inserted into the outside of the metal joint 6 and the annular tube 12. After insertion, the leather tube 4 is compressed and clamped in the outer groove of the annular tube 12 for positioning, which ensures the stability of the connection position and low production cost.

[0026] Embodiment 2: By Figure 1-4 It can be seen that the inner annular groove of the metal joint 6 is movably connected with a sealing ring 11, and the inner side of the sealing ring 11 is in contact with the outer side of the leather tube 4;

[0027] In the specific implementation process, it is worth pointing out that the sealing ring 11 improves the sealing between the metal joint 6 and the leather tube 4;

[0028] Furthermore, a plurality of rubber bumps 10 are fixedly connected to the outer side of the sealing ring 11, and the outer side of the rubber bumps 10 is movably connected to the inner groove of the metal joint 6;

[0029] In the specific implementation process, it is worth pointing out that the rubber protrusion 10 can be snapped into the inner groove of the metal joint 6 for positioning, thereby ensuring the stability of the sealing ring 11, and the sealing ring 11 seals the contact between the leather tube 4 and the metal joint 6 to prevent the leakage of combustible gas;

[0030] Furthermore, a plurality of rubber protrusions 10 are equidistantly distributed on the outside of the sealing ring 11;

[0031] In the specific implementation process, it is worth pointing out that the multiple rubber bumps 10 are evenly distributed on the outside of the sealing ring 11 to ensure the stable clamping of the sealing ring 11;

[0032] Furthermore, the outer side of the torsion spring 1 is fixed with a rubber sleeve 3 via two elastic members 2, and the elastic member 2 may be a metal with elasticity;

[0033] In the specific implementation process, it is worth pointing out that the rubber sleeve 3 can be sleeved on the outside of the leather tube 4 and rely on the elasticity of the rubber sleeve 3 to hold the leather tube 4 tightly for protection. At the same time, the torsion spring 1 and the elastic member 2 below improve the anti-bending effect of the leather tube 4 and extend its service life.

[0034] Specifically, on the basis of the above-mentioned first embodiment, the torsion spring 1, the elastic member 2 and the sealing ring 11 are matched to improve the sealing performance between the metal joint 6 and the leather tube 4, thereby avoiding the leakage of the combustible gas.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for oxygen and acetylene pipe joints, comprising a torsion spring (1), characterized in that: A connecting sleeve (5) is installed at the bottom of the torsion spring (1), a metal joint (6) and a leather tube (4) are arranged inside the connecting sleeve (5), and a positioning mechanism is arranged inside the connecting sleeve (5); The positioning mechanism comprises an annular cylinder (12), a clamping block (9), a first thread (7) and a second thread (8); The outer side of the annular tube (12) is fixedly connected to the inner side of the metal joint (6); the inner sides of the annular tube (12) and the metal joint (6) are movably connected to the outer side of the leather tube (4); a plurality of clamping blocks (9) are installed on the inner side of the leather tube (4); the outer sides of the plurality of clamping blocks (9) are movably connected to the outer grooves of the annular tube (12); the outer sides of the clamping blocks (9) are provided with a first thread (7) and a second thread (8) which are threadably connected to each other; the first thread (7) and the second thread (8) are respectively provided on the inner side of the connecting sleeve (5) and the outer side of the metal joint (6).

2. The oxygen and acetylene pipe joint protection device according to claim 1 is characterized in that: The inner annular groove of the metal joint (6) is movably connected to a sealing ring (11), and the inner side of the sealing ring (11) is in contact with the outer side of the leather tube (4).

3. The oxygen and acetylene pipe joint protection device according to claim 2 is characterized in that: A plurality of rubber protrusions (10) are fixedly connected to the outer side of the sealing ring (11), and the outer side of the rubber protrusion (10) is movably connected to the inner groove of the metal joint (6).

4. The oxygen and acetylene pipe joint protection device according to claim 3 is characterized in that: The plurality of rubber protrusions (10) are distributed at equal distances outside the sealing ring (11).

5. The oxygen and acetylene pipe joint protection device according to claim 1, characterized in that: The outer side of the torsion spring (1) is fixedly connected to a rubber sleeve (3) via two elastic members (2).

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