Non-welding explosion-proof cylinder

Abstract

The utility model discloses a non-welding explosion-proof cylinder, which comprises an explosion-proof cylinder main body and a sun shade, and the explosion-proof cylinder main body comprises a cylinder body, a front cover and a rear cover. In the invention, the front cover and the rear cover are respectively lapped on the junction surface I and the junction surface II in the cylinder body, the fastening screw penetrates through the front cover and is screwed with the rear cover, and the cylinder body is clamped between the front cover and the rear cover, so that the front cover, the rear cover and the cylinder body are fixed, and then the explosion-proof screw is integrated into the front cover; a first explosion-proof surface and a second explosion-proof surface are formed at the joint of the front cover and the barrel body and the joint of the rear cover and the barrel body respectively, and the heads of the fastening screws are matched with the explosion-proof screws to form threaded explosion-proof surfaces, so that the explosion-proof performance of the explosion-proof barrel is guaranteed, fixation is achieved without welding, deformation caused by welding and follow-up crator treatment do not need to be considered, and the cost is reduced. The whole explosion-proof cylinder is only provided with the front cover, the rear cover and the cylinder body, and the rest are standard parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion -proof barrel, especially to a welding -free explosion -proof barrel. BACKGROUND

[0002] The explosion -proof barrel is also called explosion -proof cylinder or explosion isolation device, and is a special equipment used in the industrial safety field, mainly used for preventing explosion from spreading between different areas.

[0003] The existing explosion -proof barrel usually adopts a stainless steel welding scheme, and the stainless steel welding has the following problems:

[0004] 1. One barrel machine is spliced by multiple parts, and the number of parts is large, such as the attached Figure 4 As shown in the structure of a typical explosion -proof cylinder, there are six structural parts;

[0005] 2. In order to ensure explosion -proof and waterproof, each part constituting the explosion -proof barrel is integrated by welding, and special equipment and professional welders are required for welding, and welding deformation and subsequent machining allowance need to be paid attention to, and the process is relatively complex;

[0006] 3. After welding, there are welding scars, which affect the appearance and need to be treated to remove the welding scars;

[0007] 4. The only material that can be welded together and meet the requirements of the explosion -proof scene is stainless steel, and the stainless steel material is heavy and has low processing efficiency, and requires high processing equipment. INVENTION CONTENTS

[0008] The utility model aims at solving the above -mentioned problems, and proposes a welding -free explosion -proof barrel.

[0009] In order to achieve the above -mentioned purpose, the utility model adopts the following technical scheme:

[0010] A welding -free explosion -proof barrel, comprising an explosion -proof barrel body and a sunshade, the explosion -proof barrel body comprises a barrel body, a front cover and a rear cover, the front cover and the rear cover are respectively clamped with the inner wall of the barrel body through the combination surface one and the combination surface two, the front cover and the rear cover are fixedly connected through the fastening screw, and the explosion -proof screw is integrated in the inside of the front cover, and the arc surface corresponding area of the barrel body and the front cover and the rear cover forms explosion -proof surface one and explosion -proof surface two respectively.

[0011] Preferably, the arc-shaped end outer wall of the front cover and the rear cover is respectively integrated with the sealing ring one and the sealing ring two, and the outer wall of the sealing ring one and the sealing ring two is in abutment with the inner wall of the barrel body.

[0012] Preferably, two sets of annular grooves are formed in the outer wall of the arc-shaped end of the front cover and the rear cover respectively, and the sealing ring one and the sealing ring two are respectively engaged with the two sets of annular grooves.

[0013] Preferably, the outer wall of the fastening screw passes through the inside of the front cover, and the outer wall of the fastening screw is screw-coupled with the inner wall of the rear cover.

[0014] Preferably, a screw elastic pad is sleeved on the outer side of the fastening screw, and the screw elastic pad is integrated between the inner wall of the front cover and the head of the fastening screw.

[0015] Preferably, a gasket is placed at the opening end of the fastening screw, and the gasket abuts against the explosion-proof screw.

[0016] In summary, due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0017] 1. In the present application, the front cover and the rear cover are respectively overlapped on the joint surface one and the joint surface two inside the barrel body, the fastening screw is passed through the front cover and screw-coupled with the rear cover, the barrel body is clamped between the front cover and the rear cover, so as to realize the fixation of the front cover, the rear cover and the barrel body, then the explosion-proof screw is integrated into the inside of the front cover, the joint of the front cover and the barrel body forms the explosion-proof surface one, the joint of the rear cover and the barrel body forms the explosion-proof surface two, and the head of the fastening screw cooperates with the explosion-proof screw to form the threaded explosion-proof surface, so as to ensure the explosion-proof performance of the explosion-proof barrel while realizing the fixation without welding, so as not to consider the deformation caused by welding and the subsequent welding scar treatment, and the whole explosion-proof barrel only has three workpieces of the front cover, the rear cover and the barrel body, and the rest are standard parts.

[0018] 2. In the present application, the front cover and the rear cover are respectively sleeved with the sealing ring one and the sealing ring two, and after the fixation of the front cover, the rear cover and the barrel body is completed by the fastening screw, the sealing ring one and the sealing ring two are tightly attached to the inner wall of the barrel body, so as to further ensure the air tightness of the whole explosion-proof barrel. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 An overall structure schematic diagram is shown according to the embodiment of the present application;

[0020] Figure 2 A sunshade structure schematic diagram is shown according to the embodiment of the present application;

[0021] Figure 3 A barrel body structure schematic diagram is shown according to the embodiment of the present application;

[0022] Figure 4 An existing technology structure schematic diagram is shown according to the embodiment of the present application.

[0023] LEGEND:

[0024] 1, barrel; 2, front cover; 3, rear cover; 4, sealing ring I; 5, sealing ring II; 6, fastening screw; 7, explosion-proof screw; 8, screw elastic pad; 9, sunshade; 10, explosion-proof surface I; 11, explosion-proof surface II; 12, joint surface I; 13, joint surface II. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-4 The present application provides a technical solution:

[0027] A welding-free explosion-proof cylinder includes an explosion-proof cylinder body and a sunshade 9. The explosion-proof cylinder body includes a barrel 1, a front cover 2 and a rear cover 3. The front cover 2 and the rear cover 3 are respectively clamped with the inner wall of the barrel 1 through joint surface I 12 and joint surface II 13. The front cover 2 and the rear cover 3 are fixedly connected through fastening screws 6. The explosion-proof screw 7 is integrated in the inside of the front cover 2. The arc-shaped surfaces of the barrel 1, the front cover 2 and the rear cover 3 correspond to the areas of the explosion-proof surface I 10 and the explosion-proof surface II 11 respectively.

[0028] The front cover 2 and the rear cover 3 are respectively overlapped on the joint surface I 12 and the joint surface II 13 inside the barrel 1. The fastening screw 6 is screwed through the front cover 2 and the rear cover 3. The barrel 1 is clamped between the front cover 2 and the rear cover 3 to realize the fixation of the front cover 2, the rear cover 3 and the barrel 1. Then the explosion-proof screw 7 is integrated into the inside of the front cover 2. The joint surfaces of the front cover 2, the rear cover 3 and the barrel 1 form the explosion-proof surface I 10 and the explosion-proof surface II 11 respectively. The head of the fastening screw 6 cooperates with the explosion-proof screw 7 to form a threaded explosion-proof surface. In this way, the explosion-proof performance of the explosion-proof cylinder is ensured without welding fixation. Therefore, the deformation caused by welding and the subsequent welding scar treatment do not need to be considered. The explosion-proof cylinder as a whole only has three workpieces, i.e. the front cover 2, the rear cover 3 and the barrel 1. The rest are standard parts.

[0029] It should be noted that the materials of the barrel 1, the front cover 2 and the rear cover 3 can all be selected as stainless steel or aluminum alloy, or a combination of aluminum alloy and stainless steel, i.e. the barrel 1 is made of stainless steel, and the front cover 2 and the rear cover 3 are made of aluminum alloy.

[0030] Specifically, as Figure 2 and Figure 4As shown, the outer wall of the arc-shaped end of the front cover 2 and the rear cover 3 is respectively integrated with a sealing ring one 4 and a sealing ring two 5, and the outer wall of the sealing ring one 4 and the sealing ring two 5 is in abutment with the inner wall of the barrel body 1. The outer side of the front cover 2 and the rear cover 3 is respectively sleeved with the sealing ring one 4 and the sealing ring two 5. After the fixation of the front cover 2, the rear cover 3 and the barrel body 1 is completed by the fastening screw 6, the sealing ring one 4 and the sealing ring two 5 are tightly attached to the inner wall of the barrel body 1, so as to further ensure the air tightness of the whole explosion-proof barrel. The outer wall of the arc-shaped end of the front cover 2 and the rear cover 3 is respectively provided with two groups of annular grooves. The sealing ring one 4 and the sealing ring two 5 are respectively clamped with the two groups of annular grooves, so as to ensure the relative position between the sealing ring one 4 and the front cover 2 and the sealing ring two 5 and the rear cover 3.

[0031] Specifically, as shown in the drawings, Figure 2 and Figure 3 As shown, the outer wall of the fastening screw 6 penetrates the inside of the front cover 2, and the outer wall of the fastening screw 6 is screw-connected with the inner wall of the rear cover 3. The barrel body 1 is clamped between the front cover 2 and the rear cover 3. The outer side of the fastening screw 6 is sleeved with a screw elastic pad 8. The screw elastic pad 8 is integrated between the inner wall of the front cover 2 and the head of the fastening screw 6, so as to further ensure the stability of the connection of the fastening screw 6. The fastening screw 6 is placed with a gasket at the beginning. The gasket is in abutment with the explosion-proof screw 7. The fastening screw 6 penetrates the front cover 2. The fastening screw 6 and the periphery of the front cover 2 are sealed by pouring glue. The thread explosion-proof surface is formed by cooperating with the explosion-proof screw 7. The gasket is designed between the head of the fastening screw 6 and the explosion-proof screw 7, which is convenient for the fastening of the explosion-proof screw 7.

[0032] Working principle: the front cover 2 and the rear cover 3 are respectively overlapped on the combined surface one 12 and the combined surface two 13 inside the barrel body 1. The fastening screw 6 penetrates the front cover 2 and is screw-connected with the rear cover 3. The barrel body 1 is clamped between the front cover 2 and the rear cover 3, so as to realize the fixation of the front cover 2, the rear cover 3 and the barrel body 1. Then the explosion-proof screw 7 is integrated into the inside of the front cover 2. The combined part of the front cover 2 and the rear cover 3 and the barrel body 1 respectively forms an explosion-proof surface one 10 and an explosion-proof surface two 11. The head of the fastening screw 6 cooperates with the explosion-proof screw 7 to form a thread explosion-proof surface. In this way, the explosion-proof performance of the explosion-proof barrel is ensured without the need for welding to realize fixation. In this way, the deformation caused by welding and the subsequent welding scar treatment do not need to be considered. The whole explosion-proof barrel only has three workpieces, i.e. the front cover 2, the rear cover 3 and the barrel body 1. The rest are standard parts. The outer side of the front cover 2 and the rear cover 3 is respectively sleeved with the sealing ring one 4 and the sealing ring two 5. After the fixation of the front cover 2, the rear cover 3 and the barrel body 1 is completed by the fastening screw 6, the sealing ring one 4 and the sealing ring two 5 are tightly attached to the inner wall of the barrel body 1, so as to further ensure the air tightness of the whole explosion-proof barrel.

[0033] The foregoing description of the embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flameproof enclosure comprising a flameproof enclosure body and a sunshade (9), characterized in that, The explosion-proof barrel body includes a barrel body (1), a front cover (2) and a rear cover (3), the front cover (2) and the rear cover (3) are respectively clamped with the inner wall of the barrel body (1) through the first joint surface (12) and the second joint surface (13), the front cover (2) and the rear cover (3) are fixedly connected through the fastening screw (6), and the explosion-proof screw (7) is integrated in the front cover (2), the arc surface of the barrel body (1), the front cover (2) and the rear cover (3) corresponds to the first explosion-proof surface (10) and the second explosion-proof surface (11) respectively.

2. A flameproof bushing according to claim 1, characterized in that The outer wall of the arc-shaped end of the front cover (2) and the rear cover (3) is respectively integrated with the sealing ring (4) and the sealing ring (5), and the outer wall of the sealing ring (4) and the sealing ring (5) is in abutment with the inner wall of the barrel body (1).

3. A flameproof bushing according to claim 2, characterized in that The outer wall of the arc-shaped end of the front cover (2) and the rear cover (3) is respectively integrated with the sealing ring (4) and the sealing ring (5), and the outer wall of the sealing ring (4) and the sealing ring (5) is in abutment with the inner wall of the barrel body (1).

4. A flameproof bushing according to claim 3, characterized in that The outer wall of the fastening screw (6) passes through the inside of the front cover (2), and the outer wall of the fastening screw (6) is in screw connection with the inner wall of the rear cover (3).

5. A flameproof bushing according to claim 4, characterized in that The outer wall of the fastening screw (6) passes through the inside of the front cover (2), and the outer wall of the fastening screw (6) is in screw connection with the inner wall of the rear cover (3).

6. A flameproof bushing according to claim 5, characterized in that The fastening screw (6) is provided with a gasket at the opening end, and the gasket is in abutment with the explosion-proof screw (7).

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