Lightweight explosion-proof housing

By using a combination of aluminum alloy and stainless steel sheet metal, a lightweight explosion-proof shell is formed, which solves the problem of excessive weight of the explosion-proof gimbal, achieving lightweighting and improved heat dissipation performance, while meeting explosion-proof design specifications.

CN223953709UActive Publication Date: 2026-02-27ZHEJIANG SHUANGSHI INFRARED TECH CO LTD
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Patent Information

Application Number
CN202520909459.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2026-02-27
Estimated Expiration
2035-05-09

AI Technical Summary

Technical Problem

Existing explosion-proof gimbals are too heavy, causing inconvenience in transportation and installation, and increasing the load and power consumption of robots. There is an urgent need in the market for lightweight and small explosion-proof gimbals.

Method used

The horizontal and vertical fixed brackets are made of aluminum alloy, combined with stainless steel sheet metal and silicone seals, and formed into a lightweight explosion-proof shell through molding. This reduces welding processes, meets explosion-proof design specifications, and enhances thread strength and corrosion resistance through stainless steel threaded sleeves.

Benefits of technology

It significantly reduces the weight and size of the explosion-proof enclosure, simplifies manufacturing, improves heat dissipation, reduces the risk of thread corrosion, and meets explosion-proof design specifications.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223953709U_ABST
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Abstract

The utility model discloses a lightweight explosion-proof housing, which comprises a middle cylinder assembly, a base assembly, a vertical transmission assembly, a horizontal transmission assembly, a load interface I and a load interface II, and is characterized in that the horizontal transmission assembly comprises a horizontal fixed support, a motor, a power supply module, a motor driving part and a threaded steel sleeve II; the horizontal fixing support is in lap joint with the top of the base assembly through a first step, the horizontal fixing support is fixedly connected with the base assembly through a second fixing screw, the vertical transmission assembly comprises a vertical fixing support and a first threaded steel sleeve, and the vertical fixing support is fixedly connected with the middle cylinder assembly through a first fixing screw. According to the explosion-proof shell, the horizontal fixing support is in lap joint with the first step, fixing of the horizontal fixing support and the base assembly is completed through the second fixing screw, the horizontal fixing support is made of aluminum alloy and can be formed through a mold, the horizontal fixing support and the base assembly form a part of the explosion-proof shell, and the weight and the size of the shell are greatly reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to an explosion-proof holder technical field especially relates to a kind of lightweight explosion-proof shell. BACKGROUND

[0002] Explosion-proof holder is a kind of monitoring equipment specially designed for possible existence explosive gas, vapor, mist or dust and other dangerous environments.It is mainly different from ordinary holder in that it has explosion-proof performance, can ensure the safety of use in these special environments.Explosion-proof holder usually adopts special material and structure design to prevent the spark or high temperature produced by internal electronic components from igniting external explosive substances.

[0003] Current explosion-proof holder is heavy, as much as 30kg or more, whole machine assembly, transportation, field installation and maintenance are inconvenient, in robot industry, explosion-proof holder is too heavy to squeeze the load of robot, and increase the power consumption of robot, there is urgent demand for low weight, small size explosion-proof holder in market.

[0004] Current technology mainly has following several schemes:

[0005] Scheme 1: all stainless steel design, shell is welded after processing with stainless steel pipe material and plate material, main defect lies in that stainless steel is heavy, and processing cost is high;

[0006] Scheme 2: whole pouring scheme, main defect lies in that pouring process requires higher wall thickness, and same specification small weight is heavier, only suitable for small explosion-proof holder;

[0007] Scheme 3: all aluminum alloy shell design, greatly reduces weight, main defect lies in that the corrosion resistance of aluminum alloy shell is not as good as stainless steel, and aluminum alloy shell usually needs to open mold, and early investment cost is very high. INVENTION CONTENTS

[0008] The utility model aims at: in order to solve above-mentioned problem, and propose a kind of lightweight explosion-proof shell.

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

[0010] A kind of lightweight explosion-proof shell, including middle cylinder component, base component, vertical transmission component, horizontal transmission component, load interface one and load interface two, the horizontal transmission component includes horizontal fixed support, motor, power module, motor drive piece and threaded steel sleeve two, the horizontal fixed support is connected on the top of base component by step one, and the horizontal fixed support is fixedly connected with base component by fixed screw two, the vertical transmission component includes vertical fixed support and threaded steel sleeve one, the vertical fixed support is fixedly connected with middle cylinder component by fixed screw one.

[0011] Preferably, the vertical fixing bracket and the horizontal fixing bracket are respectively provided with vertical fixing sheet metal and horizontal fixing sheet metal on their outer sides, and the fixing screw one and fixing screw two pass through the vertical fixing sheet metal and the horizontal fixing sheet metal respectively.

[0012] Preferably, both the vertically fixed sheet metal and the horizontally fixed sheet metal are provided with silicone seals at their bottoms.

[0013] Preferably, the base assembly has a base plate sheet metal overlapping the inside via a step two, and the base plate sheet metal is fixedly connected to the horizontal fixed bracket by a fixing screw three.

[0014] Preferably, the outer side of the middle cylinder assembly is integrated with an outer seat, and the vertical fixing sheet metal is fixedly connected to the outer seat by reinforcing screws.

[0015] Preferably, both the vertical and horizontal fixing brackets are made of aluminum alloy, and both the vertical and horizontal fixing brackets have integrated aluminum alloy heat dissipation channels inside.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] In this application, the horizontal fixing bracket overlaps on step one, and is fixed to the base assembly by fixing screw two. The horizontal fixing bracket is made of aluminum alloy and can be molded. Together with the base assembly, it forms part of the explosion-proof shell, significantly reducing the weight and size of the shell. The mounting surface formed directly between the horizontal fixing bracket and the base forms an explosion-proof joint surface, meeting the explosion-proof design specifications. This solution reduces welding processes and significantly reduces processing difficulty. To prevent the horizontal fixing bracket from being corroded by contact with external air, a horizontal fixing sheet metal made of stainless steel is added to the outside of the horizontal fixing bracket. There is a silicone seal between the horizontal fixing sheet metal and the horizontal fixing bracket. Through the above solution, the horizontal fixing bracket is completely isolated from the air. The threads of the fixing screws on the horizontal fixing bracket are made of stainless steel thread sleeves, which increases the thread strength and reduces the risk of thread corrosion. The optimization method between the vertical transmission assembly and the middle cylinder assembly is similar to the optimization method between the horizontal transmission assembly and the base assembly. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0019] Figure 2 An exploded structural diagram according to an embodiment of the present invention is shown;

[0020] Figure 3 The present invention provides an embodiment of the present invention. Figure 1 A magnified view of the structure at point A in the middle;

[0021] Figure 4 A structure schematic diagram of the middle B is shown. Figure 1 A structure schematic diagram of the middle B is shown.

[0022] Figure 5 A structure schematic diagram of the middle C is shown. Figure 1 A structure schematic diagram of the middle C is shown.

[0023] Figure 6 A structure schematic diagram of the horizontal transmission assembly is shown.

[0024] Figure 7 An aluminum alloy heat dissipation channel structure schematic diagram is shown.

[0025] Legend:

[0026] 1, middle tube assembly; 2, base assembly; 3, vertical transmission assembly; 301, vertical fixed support; 302, fixed screw one; 303, vertical fixed metal plate; 304, threaded steel sleeve one; 4, horizontal transmission assembly; 401, horizontal fixed support; 402, motor; 403, power module; 404, motor driving part; 405, threaded steel sleeve two; 406, fixed screw two; 407, horizontal fixed metal plate; 5, load interface one; 6, load interface two; 7, silica gel sealing part; 8, outer base; 9, reinforcing screw; 10, aluminum alloy heat dissipation channel; 11, step one; 12, step two; 13, bottom support metal plate; 14, fixed screw three. DETAILED DESCRIPTION

[0027] 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.

[0028] Please refer to Figures 1-7 The present application provides a technical solution:

[0029] A kind of lightweight explosion-proof housing, including middle tube component 1, base component 2, vertical transmission component 3, horizontal transmission component 4, load interface one 5 and load interface two 6, horizontal transmission component 4 includes horizontal fixed support 401, motor 402, power module 403, motor drive 404 and threaded steel sleeve two 405, horizontal fixed support 401 is overlapped on the top of base component 2 by step one 11, and horizontal fixed support 401 is fixedly connected with base component 2 by fixed screw two 406, vertical transmission component 3 includes vertical fixed support 301 and threaded steel sleeve one 304, vertical fixed support 301 is fixedly connected with middle tube component 1 by fixed screw one 302;

[0030] Horizontal fixed support 401 is overlapped on step one 11, and the fixation of horizontal fixed support 401 and base component 2 is completed by fixed screw two 406, horizontal fixed support 401 is aluminum alloy material, can be formed by mould, and also constitutes part of explosion-proof housing together with base component 2, greatly reduces the weight and size of shell, the mounting surface formed by horizontal fixed support 401 and base directly forms an explosion-proof joint surface, meets the design specification of explosion-proof, this scheme reduces welding process, greatly reduces processing difficulty, in order to prevent horizontal fixed support 401 from being corroded by contacting external air, horizontal fixed sheet metal 407 is added outside horizontal fixed support 401, which is made of stainless steel, and there is silica gel sealing element 7 between horizontal fixed sheet metal 407 and horizontal fixed support 401, by the above scheme, horizontal fixed support 401 is completely isolated from air, the thread of the part of screw on horizontal fixed support 401 is stainless steel threaded steel sleeve, which increases the thread strength while reducing the risk of thread corrosion, the optimization mode between vertical transmission component 3 and middle tube component 1 is similar to the optimization mode between horizontal transmission component 4 and base component 2.

[0031] Specifically, as shown in Figure 2 And Figure 4 Vertical fixed sheet metal 303 and horizontal fixed sheet metal 407 are respectively arranged outside vertical fixed support 301 and horizontal fixed support 401, fixed screw one 302 and fixed screw two 406 pass through vertical fixed sheet metal 303 and horizontal fixed sheet metal 407 respectively, and silica gel sealing element 7 is arranged at the bottom of vertical fixed sheet metal 303 and horizontal fixed sheet metal 407, in order to prevent horizontal fixed support 401 and vertical fixed support 301 from being corroded by contacting external air.

[0032] Specifically, as shown in Figure 2 And Figure 3As shown, the base assembly 2 is connected to the bottom support sheet metal 13 through the step two 12, the bottom support sheet metal 13 is fixedly connected with the horizontal fixed support 401 through the fixing screw three 14, the outer side of the middle cylinder assembly 1 is integrated with the outer seat 8, the vertical fixed sheet metal 303 is fixedly connected with the outer seat 8 through the reinforcing screw 9, so as to realize the reinforcement of the vertical fixed support 301 and the horizontal fixed support 401, the vertical fixed support 301 and the horizontal fixed support 401 are made of aluminum alloy material, and the vertical fixed support 301 and the horizontal fixed support 401 are integrated with the aluminum alloy heat dissipation channel 10 inside, which greatly improves the heat dissipation performance of the holder, and makes the holder smaller and lighter.

[0033] Working principle: the horizontal fixed support 401 is connected to the step one 11, and the horizontal fixed support 401 is fixedly connected with the base assembly 2 through the fixing screw two 406, the horizontal fixed support 401 is made of aluminum alloy material, which can be formed by a mold, and together with the base assembly 2 forms part of the explosion-proof shell, which greatly reduces the weight and size of the shell, the mounting surface formed by the horizontal fixed support 401 and the base forms an explosion-proof joint surface, which meets the explosion-proof design specification, the scheme reduces the welding process and greatly reduces the processing difficulty, in order to prevent the horizontal fixed support 401 from being corroded by contacting the external air, the horizontal fixed sheet metal 407 is added outside the horizontal fixed support 401, which is made of stainless steel, and the horizontal fixed sheet metal 407 and the horizontal fixed support 401 are provided with the silica gel sealing element 7, through the above scheme, the horizontal fixed support 401 is completely separated from the air, the horizontal fixed support 401 is provided with a stainless steel thread sleeve on the fixing screw part, which increases the thread strength and reduces the risk of thread corrosion, and the optimization mode between the vertical transmission assembly 3 and the middle cylinder assembly 1 is similar to the optimization mode between the horizontal transmission assembly 4 and the base assembly 2.

[0034] The above description of the embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightweight explosion-proof housing, comprising a middle cylinder assembly (1), a base assembly (2), a vertical transmission assembly (3), a horizontal transmission assembly (4), a load interface one (5), and a load interface two (6), characterized in that, The horizontal transmission assembly (4) includes a horizontal fixed bracket (401), a motor (402), a power module (403), a motor drive component (404), and a threaded steel sleeve (405). The horizontal fixed bracket (401) is connected to the top of the base assembly (2) via a step (11), and the horizontal fixed bracket (401) is fixedly connected to the base assembly (2) via a fixing screw (406). The vertical transmission assembly (3) includes a vertical fixed bracket (301) and a threaded steel sleeve (304). The vertical fixed bracket (301) is fixedly connected to the middle cylinder assembly (1) via a fixing screw (302).

2. The lightweight explosion-proof housing according to claim 1, characterized in that, The vertical fixing bracket (301) and the horizontal fixing bracket (401) are respectively provided with vertical fixing sheet metal (303) and horizontal fixing sheet metal (407) on their outer sides, and the fixing screw one (302) and fixing screw two (406) pass through the vertical fixing sheet metal (303) and the horizontal fixing sheet metal (407) respectively.

3. The lightweight explosion-proof housing according to claim 2, characterized in that, Both the vertically fixed sheet metal (303) and the horizontally fixed sheet metal (407) are fitted with silicone seals (7) at their bottoms.

4. The lightweight explosion-proof shell according to claim 3, characterized in that, The base assembly (2) has a base plate (13) inside which is connected by step two (12), and the base plate (13) is fixedly connected to the horizontal fixed bracket (401) by fixing screw three (14).

5. A lightweight explosion-proof housing according to claim 4, characterized in that, The outer side of the middle cylinder assembly (1) is integrated with an outer seat (8), and the vertical fixed sheet metal (303) is fixedly connected to the outer seat (8) by a reinforcing screw (9).

6. A lightweight explosion-proof housing according to claim 5, characterized in that, Both the vertical fixing bracket (301) and the horizontal fixing bracket (401) are made of aluminum alloy, and both the vertical fixing bracket (301) and the horizontal fixing bracket (401) have integrated aluminum alloy heat dissipation channels (10).