Explosion-proof box with built-in hinge
By adopting an internal hinge structure in the explosion-proof box and using the cooperation of the telescopic structure with the fixed flip unit and the support unit, the problems of concentrated stress and low explosion-proof performance at the connections of the traditional explosion-proof box are solved, and more efficient explosion-proof performance and stable connection are achieved.
Patent Information
- Application Number
- CN202422306774.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Traditional explosion-proof boxes require holes to be drilled at the connection between the box and the box cover, resulting in concentrated stress, reducing explosion-proof performance, and the connection process is cumbersome.
The built-in hinge explosion-proof box design is adopted, and the telescopic structure is used to cooperate with the fixed flip unit and the support unit to achieve a fixed connection between the box cover and the box without drilling holes in the box cover and the box.
The explosion-proof performance and connection flexibility of the explosion-proof box are improved, stress concentration is avoided, and the stability of the box cover and box body is enhanced.
Smart Images
Figure CN222973970U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of explosion-proof boxes, and particularly relates to an explosion-proof box with an internal hinge. Background Art
[0002] Currently, an explosion-proof box includes a box cover and a box body. The box cover and the box body are usually connected by a hinge mechanism. Conventionally, workers need to punch holes on the outer sides of the box body and the box cover respectively, and then threadedly connect both sides of the hinge structure to the box body and the box cover through bolts.
[0003] However, for the connection method where both sides of the hinge mechanism are threadedly connected to the outer sides of the box body and the box cover through bolts, holes need to be punched on both the box body and the box cover. This punching method will cause stress concentration at the punching positions of the box body and the box cover when an explosion occurs inside the box body, thereby reducing the protection performance of the explosion-proof box. Furthermore, the explosion-proof box is prone to cracking at the punching positions, and there is room for improvement. Utility Model Content
[0004] In order to improve the explosion-proof performance of the explosion-proof box, the present application provides an explosion-proof box with an internal hinge.
[0005] An explosion-proof box with an internal hinge provided by the present application adopts the following technical solution:
[0006] An explosion-proof box with an internal hinge includes a box cover and a box body. The box cover is detachably and fixedly connected to the box body. A hinge mechanism for connecting the connection part between the box cover and the box body is arranged between the box cover and the box body. The hinge mechanism includes a fixed turning unit, a support unit, and a telescopic structure. A first connection block is arranged on the inner surface of the box cover, and the fixed turning unit is fixedly connected to the first connection block. A second connection block is arranged inside the box body, and the support unit is fixedly connected to the second connection block. One end of the telescopic structure is rotatably connected to the fixed turning unit, and the other end of the telescopic structure forms a telescopic sliding fit with the support unit.
[0007] By adopting the above technical solution, one end of the telescopic structure is rotatably connected to the fixed turning unit, and the fixed turning unit is fixedly connected to the first connection block. At the same time, the other end of the telescopic structure forms a telescopic sliding fit with the support unit, and the support unit is fixedly connected to the second connection block. Thus, when the fixed turning unit rotates with the box cover, the telescopic structure can be telescopically slid on the support unit under the action of the fixed turning unit, thereby improving the flexibility of the telescopic structure. Moreover, by setting the first connection block and the second connection block, the fixed connection of both ends of the telescopic structure can be realized without punching holes on the box cover and the box body, thereby improving the explosion-proof performance of the explosion-proof box.
[0008] Preferably, the fixed flipping unit includes a fixing member fixedly connected to the first connecting block, and the end of the telescopic structure away from the supporting unit is coaxially rotatably connected to the fixing member.
[0009] By adopting the above technical solution, since the fixing member is fixedly connected to the first connecting block, the fixing member can be flipped synchronously with the flipping of the first connecting block. And the end of the telescopic structure away from the supporting unit is coaxially rotatably connected to the fixing member. During the flipping of the box cover and the fixing member to drive the telescopic structure to rotate, the telescopic structure can always be fixed on the fixing member.
[0010] Preferably, the fixed flipping unit includes an extended substrate, and an extended portion located above the box body is arranged on the extended substrate. The extended substrate is threadedly connected to the first connecting block by bolts, and the fixing member is threadedly connected to the extended portion by bolts.
[0011] By adopting the above technical solution, since the fixing member is threadedly connected to the extended portion of the extended substrate by bolts, the extended portion can reserve a movement space for the telescopic structure, reducing the possibility of collision during the movement of the telescopic structure. And since the extended substrate is threadedly connected to the first connecting block by bolts, the supporting strength of the fixing member at the edge of the box cover is increased, and at the same time, it is convenient for the staff to repair the fixing member or the extended substrate subsequently.
[0012] Preferably, the fixed flipping unit includes a first pin rod, and the fixing member and the end of the telescopic structure away from the supporting unit are coaxially arranged with the first pin rod and form a pin rotation fit.
[0013] By adopting the above technical solution, with the arrangement of the first pin rod, a coaxial rotational connection between the fixed flipping unit and the telescopic structure is achieved, thus ensuring the stability and reliability of the fixed flipping unit during the flipping process and the hinge mechanism during the rotation process.
[0014] Preferably, the telescopic structure includes a telescopic rod, a sliding groove is arranged on the telescopic rod, a second pin rod is arranged on the supporting unit, one end of the telescopic rod is rotatably connected to the first pin rod, the other end of the telescopic rod forms a telescopic sliding fit with the supporting unit, and the second pin rod passes through the sliding groove and forms a pin fit with the supporting unit.
[0015] By adopting the above technical solution, with the arrangement of the sliding groove, and the telescopic rod forms a telescopic sliding fit with the supporting unit, thus ensuring that the box cover maintains a stable supporting state when opened or closed, avoiding unstable situations caused by changes in the opening and closing angles. With the arrangement of the second pin rod, the connection strength between the telescopic rod and the supporting unit is increased, preventing the telescopic rod from shifting or falling off during the telescopic process, thereby improving the stability of the hinge mechanism and the safety of the explosion-proof box.
[0016] Preferably, a third latch rod is provided on the support unit. The third latch rod is spaced from the second latch rod. The third latch rod passes through the sliding groove and forms a latch fit with the support unit.
[0017] By adopting the above technical solution, with the joint setting of the third latch rod and the third latch rod, the situation that the telescopic rod deflects when telescoping and sliding in the second avoidance groove is prevented, thereby enhancing the stability of the telescopic rod when telescoping and sliding.
[0018] Preferably, avoidance columns are symmetrically arranged below the support member. The avoidance columns are fixedly connected to the second connection block.
[0019] By adopting the above technical solution, with the setting of the two avoidance columns, an avoidance space for avoiding the telescopic rod is formed between the two avoidance columns and the support member. At the same time, the avoidance columns elevate the support member, thereby greatly reducing the use of materials.
[0020] Preferably, an embedding groove is provided at the opening edge of the box cover. At the position corresponding to the embedding groove on the box body, an embedding edge is provided. The embedding edge and the embedding groove form an embedding fit, and the box cover is threadedly connected to the box body by bolts.
[0021] By adopting the above technical solution, the initial position fixation of the box cover and the box body is realized by the embedding edge and the embedding groove forming an embedding fit. At the same time, by the box cover and the box body being threadedly connected by bolts, the firm fixation of the box cover and the box body is further realized.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. One end of the telescopic structure is rotatably connected to the fixed flipping unit, and the fixed flipping unit is fixedly connected to the first connection block. At the same time, the other end of the telescopic structure forms a telescopic sliding fit with the support unit, and the support unit is fixedly connected to the second connection block. Thus, when the fixed flipping unit flips along with the box cover, the telescopic structure can telescopically slide on the support unit under the action of the fixed flipping unit, thereby improving the flexibility of the telescopic structure in use; and with the setting of the first connection block and the second connection block, the fixed connection of both ends of the telescopic structure can be realized without drilling holes in the box cover and the box body, thereby improving the explosion-proof performance of the explosion-proof box;
[0024] 2. The fixing member is fixedly connected to the first connection block, so that the fixing member can flip synchronously with the flipping of the first connection block, and the end of the telescopic structure away from the support unit forms a coaxial rotational connection with the fixing member. Then, during the flipping of the box cover and the fixing member to drive the telescopic structure to rotate, the telescopic structure can always be fixed on the fixing member;
[0025] 3. By jointly providing the third plug rod and the third plug rod, it is possible to prevent the telescopic rod from deflecting when telescoping and sliding in the second avoidance groove, thereby enhancing the stability of the telescopic rod during telescopic sliding. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is an isometric schematic diagram mainly showing the overall structure in the embodiment of the present application;
[0027] Figure 2 is a state schematic diagram mainly showing the overall structure when the cover is opened in the embodiment of the present application;
[0028] Figure 3 is a schematic structural diagram mainly showing the hinge mechanism in the embodiment of the present application.
[0029] Reference numerals: 1, box cover; 11, embedded edge; 12, first connection block; 2, box body; 21, embedded groove; 22, second connection block; 3, hinge mechanism; 31, fixed flipping unit; 311, extended substrate; 3111, extension part; 312, fixing member; 3121, first fixing part; 3122, first rotating part; 31221, first avoidance groove; 313, first plug rod; 314, first clamping member; 32, support unit; 321, support member; 3211, second fixing part; 3212, limiting part; 32121, second avoidance groove; 3213, second plug rod; 3214, third plug rod; 3215, second clamping member; 3216, third clamping member; 322, avoidance column; 33, telescopic structure; 331, telescopic rod; 3311, sliding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] The following will Figure 1 - with reference to the Figure 3 further describe the present application in detail.
[0031] The embodiment of the present application discloses an internally installed hinge explosion-proof box.
[0032] Referring to Figure 1 and Figure 2 , an internally installed hinge explosion-proof box includes a box cover 1, a box body 2, and a hinge mechanism 3 for connecting the connection between the box cover 1 and the box body 2. The box cover 1 and the box body 2 are detachably and fixedly connected. In this embodiment, an embedded groove 21 is provided at the opening edge of the box cover 1, and an embedded edge 11 corresponding to the embedded groove 21 is provided on the box body 2. The embedded edge 11 and the embedded groove 21 form an embedded fit, and the four corners of the box cover 1 and the box body 2 are fixedly connected by bolts, thereby realizing the firm and detachable fixed connection between the box cover 1 and the box body 2.
[0033] Referring to Figure 1 and Figure 2, there are two hinge mechanisms 3 which are arranged at intervals at the internal connection part of the box cover 1 and the box body 2. Since the structures and connection methods of the two hinge mechanisms 3 are the same, one of the hinge mechanisms 3 will be taken as an example for elaboration.
[0034] Referring to Figure 2 and Figure 3 , the hinge mechanism 3 includes a fixed turning unit 31, a support unit 32 and a telescopic structure 33. A first connecting block 12 which protrudes is integrally formed on the inner surface of the box cover 1. The fixed turning unit 31 is fixedly connected to the first connecting block 12 in a non-penetrating connection manner. A second connecting block 22 which protrudes is integrally formed inside the box body 2. The support unit 32 is fixedly connected to the second connecting block 22 in a non-penetrating connection manner. One end of the telescopic structure 33 is rotationally connected to the fixed turning unit 31, and the other end of the telescopic structure 33 forms a telescopic sliding fit with the support unit 32.
[0035] Referring to Figure 2 and Figure 3 , by using that one end of the telescopic structure 33 is rotationally connected to the fixed turning unit 31, the fixed turning unit 31 is fixedly connected to the first connecting block 12, and at the same time the other end of the telescopic structure 33 forms a telescopic sliding fit with the support unit 32, and the support unit 32 is fixedly connected to the second connecting block 22, when the fixed turning unit 31 rotates along with the box cover 1, the telescopic structure 33 can perform telescopic sliding on the support unit 32 under the action of the fixed turning unit 31, thereby improving the flexibility of the use of the telescopic structure 33; and by using the settings of the first connecting block 12 and the second connecting block 22, the fixed connection of both ends of the telescopic structure 33 can be realized without drilling holes in the box cover 1 and the box body 2, thereby improving the explosion-proof performance of the explosion-proof box.
[0036] Referring to Figure 2 and Figure 3 , there are two first connecting blocks 12 which are arranged at intervals and are both integrally formed on one side of the inner surface of the box cover 1 close to the box body 2. The fixed turning unit 31 includes an extended substrate 311. The extended substrate 311 is arranged in an n shape. The two sides of the extended substrate 311 close to the opening respectively correspond to the positions of the two first connecting blocks 12. Extension parts 3111 which are located above the box body 2 are respectively arranged on the two sides of the extended substrate 311 close to the opening, that is, the two extension parts 3111 respectively extend out of the edges of the corresponding first connecting blocks 12, so that the extension parts 3111 can reserve a movement space for the telescopic structure 33 and reduce the possibility of collision of the telescopic structure 33 during the movement process.
[0037] Referring to Figure 2 and Figure 3, any extension part 3111 is connected to the corresponding first connection block 12 through bolt threads, thereby increasing the support strength of the extension part 3111 at the edge of the first connection block 12, and facilitating the subsequent maintenance of the extension substrate 311 by the staff.
[0038] Referring to Figure 2 and Figure 3 , the fixed flipping unit 31 includes a fixing member 312. The fixing member 312 includes a first fixing portion 3121 and a first rotating portion 3122. The first fixing portion 3121 is integrally formed on both sides of the first rotating portion 3122. Any first fixing portion 3121 is fixedly connected to the corresponding extension part 3111 through bolts, thereby increasing the support strength of the fixing member 312 at the edge of the lid 1 and improving the stability of the lid 1.
[0039] Referring to Figure 3 , the telescopic structure 33 includes a telescopic rod 331. The telescopic rod 331 is provided with a hollow structure. A first avoidance groove 31221 for avoiding the telescopic rod 331 is provided on the first rotating portion 3122. The opening of the first avoidance groove 31221 is arranged away from the lid 1, so that the end of the telescopic rod 331 away from the support unit 32 can rotate smoothly in the first avoidance groove 31221, thereby ensuring the stability of the lid 1 during the flipping process.
[0040] Referring to Figure 3 , the fixed flipping unit 31 further includes a first pin rod 313 and a first clamping member 314. The end of the telescopic rod 331 away from the support unit 32 and the first rotating portion 3122 are coaxially arranged with the first pin rod 313 and form a pin rotating fit, that is, the end of the telescopic rod 331 away from the support unit 32 and the first rotating portion 3122 are both rotatably connected to the first pin rod 313. Then, during the flipping of the lid 1 and the fixed member 312 to drive the telescopic structure 33 to rotate, the telescopic rod 331 can always be fixed on the first rotating portion 3122.
[0041] Referring to Figure 3 , the first clamping member 314 is clamped at the bottom of the first pin rod 313, and the first clamping member 314 forms an abutting fit with the outer surface of the first rotating portion 3122, thereby ensuring the stability and reliability of the fixed flipping unit 31 during the flipping process and the rotation process of the hinge mechanism 3.
[0042] Referring to Figure 2 and Figure 3, a sliding groove 3311 is formed through one end of the telescopic rod 331 away from the fixing member 312. The supporting unit 32 includes a supporting member 321, and the supporting member 321 includes a second fixing portion 3211 and a limiting portion 3212. The second fixing portions 3211 are integrally formed on both sides of the limiting portion 3212. An avoidance column 322 is provided on any one of the second fixing portions 3211. Any one of the avoidance columns 322 penetrates through the second fixing portion 3211 of the supporting member 321. The top of any one of the avoidance columns 322 forms an abutting fit with the second fixing portion 3211. Any one of the avoidance columns 322 is threadedly connected to the second connecting block 22, so that an avoidance space for avoiding the telescopic rod 331 is formed between the two avoidance columns 322 and the supporting member 321. At the same time, the avoidance column 322 raises the supporting member 321, thereby greatly reducing the use of materials.
[0043] Refer to Figure 3 , a second avoidance groove 32121 is provided on the limiting portion 3212 of the supporting member 321. One end of the telescopic rod 331 away from the fixing member 312 telescopically slides in the second avoidance groove 32121, thereby restricting the movement of the telescopic rod 331 in the horizontal direction; a second pin rod 3213 and a third pin rod 3214 are provided on the supporting member 321. The second pin rod 3213 and the third pin rod 3214 are arranged at intervals. Both the second pin rod 3213 and the third pin rod 3214 penetrate through the limiting portion 3212 and the sliding groove 3311 of the telescopic rod 331 and form a pin fit. By jointly providing the second pin rod 3213 and the third pin rod 3214, the situation that the telescopic rod 331 deflects when telescopically sliding in the second avoidance groove 32121 is prevented, thereby enhancing the stability of the telescopic rod 331 during telescopic sliding.
[0044] Refer to Figure 3 , a second clamping member 3215 is clamped at the bottom of the second pin rod 3213, and a third clamping member 3216 is clamped at the bottom of the third pin rod 3214. Both the second clamping member 3215 and the third clamping member 3216 form an abutting fit with the outer surface of the limiting portion 3212 of the supporting member 321, thereby ensuring the stability of the telescopic rod 331 telescoping and sliding in the second avoidance groove 32121, preventing the telescopic rod 331 from shifting or falling off during the telescopic process, and further improving the stability of the telescopic rod 331 and the safety of the explosion-proof box.
[0045] The implementation principle of the embodiment of this application is as follows: One end of the telescopic rod 331 is rotatably connected to the fixing member 312. The fixing member 312 is threadedly connected to the first connection block 12 by bolts. At the same time, the other end of the telescopic rod 331 forms a telescopic sliding fit with the support member 321. The support member 321 is fixedly connected to the second connection block 22 by bolts. Thus, when the fixing member 312 rotates with the flipping of the box cover 1, the telescopic rod 331 is subjected to the force of the fixing member 312 and performs telescopic sliding within the second avoidance groove 32121 of the support member 321, thereby improving the flexibility of the use of the telescopic rod 331. And by virtue of the settings of the first connection block 12 and the second connection block 22, the two ends of the hinge mechanism 3 can be fixed without drilling holes in the box cover 1 and the box body 2, that is, the box cover 1 and the box body 2 can be opened and closed by means of the hinge mechanism 3. When in the closed state, the embedded edge 11 and the embedded groove 21 form an embedded fit, and then bolts are used to connect at the four corners of the box cover 1 and the box body 2, thereby improving the explosion-proof performance of the explosion-proof box.
[0046] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.
Claims
1. An explosion-proof box with built-in hinges, characterized in that: The invention comprises a box cover (1) and a box body (2), wherein the box cover (1) and the box body (2) are detachably fixedly connected, and a hinge mechanism (3) for connecting the box cover (1) and the box body (2) is arranged between the box cover (1) and the box body (2), and the hinge mechanism (3) comprises a fixed flip unit (31), a support unit (32) and a telescopic structure (33). A first connecting block (12) is arranged on the inner surface of the box cover (1), and the fixed flip unit (31) is fixedly connected to the first connecting block (12). A second connecting block (22) is arranged inside the box body (2), and the support unit (32) is fixedly connected to the second connecting block (22). One end of the telescopic structure (33) is rotatably connected to the fixed flip unit (31), and the other end of the telescopic structure (33) is telescopically slidably matched with the support unit (32).
2. The internal hinge explosion-proof box according to claim 1, characterized in that: The fixed flip unit (31) comprises a fixing member (312), wherein the fixing member (312) is fixedly connected to the first connecting block (12), and the end of the telescopic structure (33) away from the supporting unit (32) is coaxially rotatably connected to the fixing member (312).
3. The internal hinge explosion-proof box according to claim 2, characterized in that: The fixed flip unit (31) comprises an extension base plate (311), the extension base plate (311) is provided with an extension portion (3111) located above the box body (2), the extension base plate (311) is threadedly connected to the first connection block (12) via bolts, and the fixing member (312) and the extension portion (3111) are threadedly connected via bolts.
4. The internal hinge explosion-proof box according to claim 2, characterized in that: The fixed flip unit (31) comprises a first latch rod (313), and the ends of the fixing member (312) and the telescopic structure (33) away from the support unit (32) are respectively coaxially arranged with the first latch rod (313) to form a latch rotation fit.
5. The internal hinge explosion-proof box according to claim 4, characterized in that: The telescopic structure (33) comprises a telescopic rod (331), a sliding groove (3311) is provided on the telescopic rod (331), a second latch rod (3213) is provided on the support unit (32), one end of the telescopic rod (331) is rotatably connected to the first latch rod (313), the other end of the telescopic rod (331) forms a telescopic sliding fit with the support unit (32), and the second latch rod (3213) passes through the sliding groove (3311) and forms a latch fit with the support unit (32).
6. The internal hinge explosion-proof box according to claim 5, characterized in that: The support unit (32) is provided with a third latch rod (3214), the second latch rod (3213) and the third latch rod (3214) are arranged at intervals, and the third latch rod (3214) is provided with a sliding groove (3311) and forms a latch fit with the support unit (32).
7. The internal hinge explosion-proof box according to claim 1, characterized in that: An avoidance column (322) is provided below the support unit (32), and the avoidance column (322) is fixedly connected to the second connection block (22).
8. The internal hinge explosion-proof box according to claim 1, characterized in that: An embedding groove (21) is provided at the opening edge of the box cover (1), and an embedding edge (11) is provided on the box body (2) at a position corresponding to the embedding groove (21); the embedding edge (11) and the embedding groove (21) form an embedding fit, and the box cover (1) is threadedly connected to the box body (2) by means of bolts.