Explosion-proof testing equipment

Abstract

The utility model discloses a test explosion-proof equipment, including box body, box door, explosion venting subassembly and locking subassembly, box body is equipped with holding chamber, explosion venting mouth and opening, explosion venting mouth and opening communicate holding chamber and the outside, box door is provided close to the opening side of box body and is movably connected with box body, explosion venting subassembly is fixed with box body and covers explosion venting mouth, locking subassembly is fixed with box door and locking subassembly. The locking assembly is fixedly connected to one of the box door and the box body and is detachably connected with the other one of the box door and the box body so as to lock or unlock the box door, so that the safety of equipment in the battery testing process is improved, and potential safety hazards caused by explosion or other emergencies are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery test explosion -proof technical field especially relates to a test explosion -proof equipment. BACKGROUND

[0002] With the continuous development of energy-intensive applications, as the main energy storage medium, the performance and safety of the battery have become a key issue in research and application. Especially the research and use of high energy density batteries, because of its high energy output, once a fault occurs, it may cause serious safety problems. Therefore, the safety problem of battery test equipment has become the focus of research.

[0003] The existing battery test equipment is mainly used for testing the electrical performance, charge and discharge characteristics, temperature control and other parameters of the battery to verify its performance and stability. In the test process, the battery may occur thermal runaway, internal short circuit or other fault phenomena under extreme conditions, which may cause explosion, fire and other dangerous events. However, at present, many battery test equipment adopts traditional protection measures, such as simple shell protection, battery test environment control, etc. However, these measures cannot provide sufficient protection for the instantaneous pressure, temperature and flame and other factors when the battery fault occurs, and lack effective protection ability for explosion and other extreme accidents.

[0004] Therefore, how to improve the explosion-proof performance of the battery test equipment and ensure the safety in the battery test process has become a problem to be solved. INVENTION CONTENTS

[0005] One purpose of the utility model is to provide a test explosion -proof equipment, which aims at solving the technical problem of poor explosion-proof ability and poor safety of the existing battery test explosion -proof equipment.

[0006] In order to achieve the above purpose, the utility model provides a scheme: a test explosion -proof equipment, the test explosion -proof equipment includes box, and is opened with containing cavity, explosion vent and opening, and the explosion vent is communicated with the opening, and the containing cavity is communicated with the outside; The box door is arranged on one side of the box body close to the opening, and is movably connected with the box body; The explosion vent assembly is fixedly connected with the box body, and covers the explosion vent; The locking assembly is fixedly connected on one of the box door and the box body, and is detachably connected with the other, so as to lock or unlock the box door.

[0007] Optionally, the ratio of the area of the explosion vent to the volume of the containing cavity is K, and 0.2

[0008] Optionally, the explosion vent assembly includes an explosion vent plate and an explosion-proof hinge, the explosion vent plate covers the explosion vent, and the explosion-proof hinge is hinged to the explosion vent plate and the box body; The explosion vent assembly further comprises a first linkage assembly, and the first linkage assembly is fixedly connected with the explosion vent plate and the box body.

[0009] Optionally, the first linkage assembly comprises a first fixing seat, a second fixing seat and a first connecting member, the first fixing seat is fixedly connected with the cabinet, the second fixing seat is fixedly connected with the explosion vent, and the first connecting member connects the first fixing seat and the second fixing seat in series.

[0010] Optionally, the cabinet door comprises a main body portion and an embedded portion connected with each other, the main body portion is hingedly connected with the cabinet, the embedded portion is embedded in the opening, the main body portion covers and seals the opening, the locking assembly is arranged in the embedded portion, and the embedded portion is provided with a displacement slot for the locking assembly to extend out and retract.

[0011] Optionally, the locking assembly comprises a control assembly and a first locking assembly, the cabinet door is provided with a locking slot, the control assembly is used for controlling the first locking assembly to be clamped with the locking slot to lock the cabinet door, the first locking assembly comprises a first transmission rod, a first connecting rod and a plurality of first locking members, the plurality of first locking members are parallel to each other and are rotationally connected with the cabinet door to be inserted into and withdrawn from the locking slot, the first connecting rod is rotationally connected with one end of the plurality of first locking members away from the locking slot, one end of the first transmission rod is rotationally connected with the first connecting rod, and the other end is connected with the control assembly, and the control assembly is used for driving the first transmission rod to rotate.

[0012] Optionally, the locking assembly further comprises a second locking assembly, the second locking assembly comprises a second transmission rod, a second connecting rod and a plurality of second locking members, the plurality of second locking members are arranged on one side of the cabinet door adjacent to the first locking members, the plurality of second locking members are parallel to each other and are rotationally connected with the cabinet door to be inserted into and withdrawn from the locking slot, the second connecting rod is rotationally connected with one end of the plurality of second locking members away from the locking slot, one end of the second transmission rod is rotationally connected with the second connecting rod, and the other end is connected with the first connecting rod to drive the second connecting rod to drive the plurality of second locking members to rotate.

[0013] Optionally, the first locking members are arranged on opposite sides of the cabinet door, and the second locking members are arranged on the other opposite sides of the cabinet door.

[0014] Optionally, the control assembly comprises a hand wheel, a connecting gear and a transmission gear, the hand wheel is arranged on the side of the cabinet door away from the cabinet, the connecting gear is coaxially fixed with the hand wheel, the transmission gear is engaged with the connecting gear, and the transmission gear is connected with the first transmission rod to drive the first transmission rod to move.

[0015] Optionally, the test explosion-proof device further comprises a second linkage assembly, the second linkage assembly comprises a third fixing seat, a fourth fixing seat and a second connecting member, the third fixing seat is fixedly connected with the cabinet, the fourth fixing seat is fixedly connected with the cabinet door, and the second connecting member connects the third fixing seat and the fourth fixing seat in series.

[0016] Optionally, a plurality of locking slots are arranged around the opening in the cabinet, and the locking slots are distributed at equal intervals.

[0017] Optionally, the explosion vent is arranged away from the cabinet door.

[0018] Optionally, the ratio of the distance from the explosion vent to the bottom of the box to the height of the box is M, 0.6 < M ≤ 1.

[0019] The utility model discloses the beneficial effect lies in:

[0020] Compared with the prior art, only the overall structural strength of the box is concerned. The safety performance of the test equipment is improved by adopting the double protection mode of the pressure relief assembly and the locking assembly. The explosion vent assembly fully considers various safety requirements under high pressure environment, and can rapidly release the accumulated gas or heat inside when explosion occurs, avoiding irreversible damage to the equipment caused by excessive explosion pressure. At the same time, the locking assembly ensures that the box door is always firmly locked during battery testing, avoiding accidental opening of the box door caused by external force or internal pressure fluctuation during testing, effectively reducing the occurrence of personnel casualties or other dangerous events near the box door caused by opening of the box door. The explosion vent assembly and the locking assembly work together to provide a multi-level safety protection mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0022] Figure 1 It is the structure schematic diagram of test explosion -proof equipment provided by the utility model embodiment;

[0023] Figure 2 It is the structure schematic diagram of the box provided by the utility model embodiment;

[0024] Figure 3 It is the structure schematic diagram of locking assembly provided by the utility model embodiment;

[0025] Figure 4 It is the structure schematic diagram of the box door provided by the utility model embodiment;

[0026] Figure 5 It is the structure schematic diagram of the box door provided by the utility model embodiment; Figure 4 The sectional view of A-A direction in Fig. 1.

[0027] Explanation of reference numerals:

[0028] 10, box; 11, containing cavity; 12, explosion vent; 13, opening; 14, locking groove; 20, box door; 21, main body part; 22, embedded part; 221, accommodation groove; 30, explosion vent assembly; 31, explosion vent plate; 32, explosion-proof hinge; 33, first linkage assembly; 331, first fixing seat; 332, second fixing seat; 333, first connecting piece; 40, locking assembly; 41, control assembly; 411, hand wheel; 412, connecting gear; 413, transmission gear; 42, first locking assembly; 421, first transmission rod; 422, first connecting rod; 423, first locking piece; 43, second locking assembly; 431, second transmission rod; 432, second connecting rod; 433, second locking piece; 50, second linkage assembly; 51, third fixing seat; 52, fourth fixing seat; 53, second connecting piece. DETAILED DESCRIPTION

[0029] 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.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a test explosion-proof device provided by the embodiments of the present application, Figure 2 is a structural schematic diagram of a box 10 provided by the embodiments of the present application.

[0031] The embodiments of the present application provide a test explosion-proof device, which comprises a box 10, a box door 20, an explosion vent assembly 30 and a locking assembly 40, and aims to improve the safety of the device during the battery test and prevent safety hazards caused by explosion or other sudden situations.

[0032] Specifically, the box 10 is divided into a main body part 21, and is provided with a containing cavity 11, an explosion vent 12 and an opening 13. The containing cavity 11 is used for containing the battery to be tested and its test-related equipment, so as to ensure that the battery is effectively isolated and protected during the test. The explosion vent 12 is in communication with the external environment, and provides a pressure release channel when explosion occurs, so as to prevent the box 10 from being broken due to excessive internal pressure. The opening 13 facilitates the entry of the battery and its test-related equipment into the containing cavity 11.

[0033] The box door 20 is arranged on one side of the box body 10 close to the opening 13, and is movably connected with the box body. In this embodiment, the box door 20 is hinged on the box body 10. The hinge mode of the box door 20 enables the box door 20 to be smoothly opened or closed, facilitating the loading and taking out of the battery. At the same time, the hinge design ensures that the box door 20 is not easily separated from the box body 10 under explosion or high temperature pressure, further ensuring the safety of the test equipment.

[0034] The explosion venting assembly 30 is one of the core safety guarantees, and is fixedly connected to the box body 10 and directly covers and seals the explosion vent 12. The explosion venting assembly 30 is usually composed of a rupturable material or a valve, which can automatically rupture or open under instantaneous high pressure, and quickly release the pressure. In the event of battery explosion, the gas or pressure generated by the explosion can be timely guided to vent along the preset safety channel, preventing excessive pressure in the equipment from causing further structural damage.

[0035] The locking assembly 40 is an additional guarantee for the box door 20, and is fixedly connected to one of the box door 20 and the box body 10, and is detachably connected to the other, so as to lock or unlock the box door 20. In this embodiment, the locking assembly 40 is arranged on the box door 20. The locking assembly 40 is connected with the box door 20 and can be clamped with the box body 10, so as to firmly fix the box door 20 on the box body 10. The locking mechanism effectively prevents the box door 20 from being accidentally opened during the test, especially when the battery fails, to avoid additional risks caused by the opening of the box door 20. Through the double fixing action of the locking assembly 40, the box door 20 can remain closed during the test even if it is subjected to external impact or internal pressure change, thereby minimizing the safety risk.

[0036] In this embodiment, the application provides a more reliable safety design by adopting the double guarantee mode of the pressure relief assembly and the locking assembly 40. The explosion venting assembly 30 provides an effective pressure release channel for the battery test equipment, preventing the explosion from causing significant damage to the equipment and the surrounding environment. In addition, the explosion venting assembly 30 can automatically trigger according to the pressure to release the accumulated gas or heat inside, avoiding the problem of not considering the pressure after explosion in traditional equipment. The locking assembly 40 ensures that the box door 20 is firmly locked during the test, preventing potential safety risks caused by accidental opening.

[0037] Further, in order to appropriately release the pressure through the explosion vent 12 when the battery test equipment explodes or the pressure suddenly increases, it is ensured that the internal gas or heat can be timely and effectively discharged. The ratio of the area of the explosion vent 12 to the volume of the containing cavity 11 is K, and the range of K is 0.2<K<0.8. Avoiding the test equipment from being damaged due to the too small area of the explosion vent 12, and avoiding the difficulty in manufacturing due to the too large area of the explosion vent 12.

[0038] In the present embodiment, the ratio K of the area of the explosion vent 12 to the volume of the accommodating cavity 11 is set to be in the range of 0.2 to 0.8, and the specific ratio is selected depending on the test type of the battery, the expected explosion energy, and the structural strength of the equipment. In the case of a larger K value, the area of the explosion vent 12 is relatively large, which can quickly release high-pressure gas and reduce the impact force of the explosion on the internal structure of the equipment, and is suitable for testing batteries with larger volume or higher energy density; while in the case of a smaller K value, the area of the explosion vent 12 is relatively small, which can more accurately control the rate of pressure release, and is suitable for batteries with smaller volume and lower energy.

[0039] In some embodiments, the explosion venting assembly 30 includes an explosion venting plate 31 and an explosion-proof hinge 32, the explosion venting plate 31 covers the explosion vent 12 and is hinged to the box 10 through the explosion-proof hinge 32. When an explosion or pressure rise occurs, the explosion venting plate 31 can be rotated open through the explosion-proof hinge 32, thereby quickly releasing the high-pressure gas or heat inside and avoiding damage to the equipment due to excessive pressure. At the same time, the explosion venting assembly 30 also includes a first linkage assembly 33 for fixedly connecting the explosion venting plate 31 and the box 10 to ensure that the explosion venting plate 31 does not separate from the box 10 when pressure release occurs.

[0040] In the present embodiment, the main function of the explosion venting plate 31 is to cover the explosion vent 12 and provide a quick pressure release channel when needed. The function of the explosion-proof hinge 32 is to ensure that the explosion venting plate 31 can be stably opened, and after pressure relief, the explosion venting plate 31 can return to a closed state to prevent external substances from entering the accommodating cavity 11 and ensure the safety of the test environment. The first linkage assembly 33 is responsible for fixing the connection between the explosion venting plate 31 and the box 10, allowing the explosion venting plate 31 to open safely while avoiding unnecessary dangers caused by its separation from the box 10.

[0041] Further, the first linkage assembly 33 can include a first fixed seat 331, a second fixed seat 332, and a first connecting piece 333, the first fixed seat 331 is fixedly connected to the outside of the box 10 and connected to the box 10 by means of bolts or welding. The second fixed seat 332 is fixedly connected to the explosion venting plate 31, and the first fixed seat 331 and the second fixed seat 332 serve as two connection points connected in series by the first connecting piece 333, which can be a spring, a steel cable, a pull rod, or other mechanical connecting pieces, serving as a safeguard to prevent the explosion venting plate 31 from separating from the box 10 and causing damage under excessive explosion pressure.

[0042] In this embodiment, the first connecting piece 333 connects the first fixing seat 331 and the second fixing seat 332 in series, providing the necessary traction and elastic support for the explosion venting plate 31. On the premise that the explosion venting plate 31 can be smoothly opened without being hindered, the movement range of the explosion venting plate 31 is limited, preventing the explosion venting plate 31 from being separated from the cabinet 10 due to excessive pressure, causing safety accidents, and effectively ensuring the safety of the equipment and the operating personnel.

[0043] In some embodiments, the cabinet door 20 includes a main body part 21 and an embedded part 22 connected to each other. The main body part 21 covers the opening 13 to form an effective seal and is hinged to the cabinet 10, ensuring that the cabinet door 20 can rotate smoothly when opening and closing, facilitating the operator to perform regular operations such as battery loading and unloading. The shape and size of the embedded part 22 are highly compatible with the opening 13 of the cabinet 10, and it can be embedded in the opening 13 of the cabinet 10 to further seal.

[0044] The locking assembly 40 is arranged in the embedded part 22. The locking assembly 40 performs additional fixation on the cabinet door 20 through a series of mechanical devices, preventing the cabinet door 20 from opening by itself due to vibration or impact in an explosion or high-pressure environment. The accommodation groove 221 is a special structural channel provided in the embedded part 22, allowing the locking assembly 40 to extend or retract. When locking is needed, the locking assembly 40 will extend and block the cabinet door 20, ensuring that the cabinet door 20 will not be blown open and preventing the explosion gas from leaking; when the door needs to be opened, the locking assembly 40 can be retracted, facilitating the opening and closing operation of the cabinet door 20.

[0045] In this embodiment, through the cooperation of the main body part 21 and the embedded part 22, the cabinet door 20 can effectively close the opening 13 of the cabinet 10, and through the design of the locking assembly 40 and the accommodation groove 221, additional protection is provided in terms of explosion prevention and sealing. The embedded part 22 is embedded in the opening 13 of the cabinet 10, and the locking assembly 40 can prevent accidental opening when an explosion occurs, while the accommodation groove 221 provides sufficient space for the extension and retraction of the locking assembly 40, so that the cabinet door 20 can remain safe and stable during daily use and pressure release after an explosion.

[0046] In some embodiments, please refer to Figure 3 , Figure 3Is the structure diagram of the locking assembly 40 provided by the embodiment of the utility model. The box body 10 is provided with a locking groove 14, and the locking assembly 40 comprises a control assembly 41 and a first locking assembly 42, wherein the control assembly 41 drives the first locking assembly 42 to be connected with the locking groove 14 by electric or manual driving mode to lock the box door 20. The first locking assembly 42 comprises a first transmission rod 421, a first connecting rod 422 and a plurality of first locking pieces 423, the plurality of first locking pieces 423 are parallel to each other and are rotatably connected with the box door 20 to be inserted into and withdrawn from the locking groove 14, and each first locking piece 423 can evenly share the pressure in the locking process, thereby improving the stability and reliability of the locking device. The first connecting rod 422 is rotatably connected with one end of the plurality of first locking pieces 423 away from the locking groove 14, one end of the first transmission rod 421 is rotatably connected with the first connecting rod 422, and the other end is connected with the control assembly 41, and the control assembly 41 is used to drive the first transmission rod 421 to rotate.

[0047] Specific locking process is, first, the control assembly 41 drives the rotation of the first transmission rod 421. The control assembly 41 can be an electric motor, a pneumatic device or a mechanical device, and the appropriate driving mode is selected according to the design requirements of the equipment. The rotation of the first transmission rod 421 drives the first connecting rod 422 to rotate, and the connection of the first connecting rod 422 and the plurality of first locking pieces 423 enables the plurality of locking pieces to rotate synchronously and be inserted into or withdrawn from the locking groove 14 at a predetermined angle, thereby completing the locking or unlocking process of the box door 20.

[0048] In the embodiment, a locking mechanism combined with the control assembly 41 and the first locking assembly 42 is provided, which can realize the locking and unlocking of the box door 20 in the battery test equipment. The control assembly 41 drives the plurality of first locking pieces 423 to move synchronously by driving the first transmission rod 421, which ensures that the box door 20 can be stably locked or unlocked, guarantees the safety and sealing performance of the box door 20 in the working state, and also enables the box door 20 to be conveniently opened when operation is required, thereby providing reliable explosion-proof protection.

[0049] Further, in order to improve the reliability of the locking assembly 40, the locking assembly 40 further comprises a second locking assembly 43; the second locking assembly 43 comprises a second transmission rod 431, a second connecting rod 432 and a plurality of second locking pieces 433. Among them, the plurality of second locking pieces 433 are arranged on one side of the box door 20 adjacent to the first locking pieces 423, the plurality of second locking pieces 433 are parallel to each other and are rotatably connected with the box door 20 to be inserted into and withdrawn from the locking groove 14, the second connecting rod 432 is rotatably connected with one end of the plurality of second locking pieces 433 away from the locking groove 14, one end of the second transmission rod 431 is rotatably connected with the second connecting rod 432, and the other end is connected with the first connecting rod 422 to drive the second connecting rod 432 to pull the plurality of second locking pieces 433 to rotate.

[0050] The working principle of the second locking assembly 43 is similar to that of the first locking assembly 42, and mainly through the cooperation of the second transmission rod 431, the second connecting rod 432, and the plurality of second locking pieces 433, the synchronization and accuracy of the locking action are ensured. The rotation of the first connecting rod 422 drives the rotation of the second connecting rod 432. The rotation of the second connecting rod 432 directly drives the synchronous rotation of the plurality of second locking pieces 433, which are inserted into or withdrawn from the locking grooves 14, thereby realizing the double locking or unlocking of the box door 20.

[0051] In the embodiment, the second locking assembly 43 is used as a supplement to the first locking assembly 42, and the second locking assembly 43 is used in cooperation with the first locking assembly 42 to form a double locking mechanism to improve the locking stability and reliability of the box door 20. The synchronous work of the plurality of locking pieces of the first locking assembly 42 and the second locking assembly 43 can effectively reduce the deviation or jamming problem that may be caused by a single locking piece under pressure, so that the locking action is more smooth and reliable. In addition, the two locking assemblies 40 jointly act to withstand greater impact force and pressure than a single assembly, thereby ensuring that the box door 20 is not forcibly opened.

[0052] In some embodiments, in order to further enhance the stability of the locking, the first locking pieces 423 are arranged on opposite sides of the box door 20, and the second locking pieces 433 are arranged on the other opposite sides of the box door 20. The first locking pieces 423 and the second locking pieces 433 act on the four side edges of the box door 20 respectively, thereby realizing the overall locking of the box door 20. The locking of the four side edges can ensure that the box door 20 will not loosen or fall off due to the weakness of a single side in an explosion or high-pressure environment, and provide more uniform pressure distribution, thereby significantly improving the pressure resistance and reliability of the locking system.

[0053] In the embodiment, the first locking pieces 423 and the second locking pieces 433 form a complement and jointly act on the four side edges of the box door 20. The distribution of the first locking pieces 423 and the second locking pieces 433 ensures the balance of the locking. There are locking pieces working on each side of the box door 20, so that the box door 20 can withstand forces from different directions when locked, avoiding incomplete locking due to the failure of a locking piece on a side to fully contact the locking grooves 14. Under this distribution, the stress of each locking piece can be balanced, and all the locking pieces can work synchronously, avoiding eccentric loading or local overload.

[0054] In some embodiments, please refer to Figure 4 and Figure 5 , Figure 4 is a structural schematic view of the box door 20 provided by the embodiment of the utility model, Figure 5 is a structural schematic view of the box door 20 provided by the embodiment of the utility model, Figure 4A-A direction. The control assembly 41 specifically includes a hand wheel 411, a connecting gear 412 and a transmission gear 413. The hand wheel 411 is arranged on the side of the box door 20 away from the box body 10, which is simple in structure and intuitive in operation, and is suitable for scenarios requiring manual operation. The connecting gear 412 is coaxially fixed with the hand wheel 411, and rotating the hand wheel 411 can synchronously rotate the connecting gear 412. The transmission gear 413 is engaged with the connecting gear 412, so that the rotation force can be stably transmitted, avoiding inaccurate or insecure locking due to transmission errors. The transmission gear 413 is connected with the first transmission rod 421 to drive the first transmission rod 421 to move.

[0055] Specifically, when the operator rotates the hand wheel 411, the rotation force is transmitted to the transmission gear 413 through the connecting gear 412, and the rotation of the transmission gear 413 causes the first transmission rod 421 connected thereto to move. This movement will further drive the locking member in the first locking assembly 42 or the second locking assembly 43 to insert or exit the locking slot 14, achieving the locking or unlocking of the box door 20.

[0056] In this embodiment, through the simple manual control mode, the user can accurately complete the locking or unlocking operation of the box door 20 without relying on complex electrical systems, avoiding the dependence on batteries or external power supply, and reducing the operating cost of the equipment.

[0057] Further, the test explosion-proof device also includes a second linkage assembly 50. The second linkage assembly 50 includes a third fixed seat 51, a fourth fixed seat 52 and a second connecting member 53, wherein the third fixed seat 51 and the fourth fixed seat 52 provide two stable connection points, respectively located on the two sides of the box body 10 and the box door 20, and the second connecting member 53 connects the two fixed seats in series. The second connecting member 53 can provide a continuous traction force to tightly connect the box door 20 and the box body 10, ensuring that the box door 20 will not be blown open due to excessive external force in the case of extreme pressure or explosion, thereby enhancing the reliability of the explosion-proof system.

[0058] In this embodiment, the second linkage assembly 50 tightens the box door 20 through the traction force, increases the tensile capacity of the box door 20, and enables the box door 20 to resist the impact force generated by the explosion in the locked state. At the same time, it also prevents the box door 20 from being separated from the box body 10 due to the impact force generated by the explosion, thereby effectively improving the explosion-proof performance of the equipment.

[0059] Further, a plurality of locking slots 14 are provided around the opening 13 in the box body 10, and the locking slots 14 are evenly distributed, providing fixed positions for the locking assembly 40 of the box door 20 and enhancing the stability and sealing performance of the box door 20.

[0060] In the present embodiment, the plurality of locking grooves 14 are evenly distributed around the opening 13 of the cabinet 10, forming a balanced locking structure. The locking grooves 14 not only provide precise mounting positions for the locking assembly 40 of the cabinet door 20, but also ensure that the cabinet door 20 can be tightly interfaced with the locking system of the cabinet 10 during installation. When the locking member of the locking assembly 40 is inserted into the locking groove 14, a strong locking effect can be formed to prevent the cabinet door 20 from loosening or opening due to external vibration or internal pressure changes. Through this equidistant distribution method, the locking force is evenly distributed among the various contact surfaces of the cabinet door 20, effectively improving the sealing and pressure resistance of the cabinet door 20.

[0061] In some embodiments, in order to optimize the pressure release effect of the explosion venting assembly 30, the explosion vent 12 is designed to be arranged in a direction away from the cabinet door 20.

[0062] In the present embodiment, the explosion vent 12 is arranged in a direction away from the cabinet door 20, which can effectively avoid the direct impact on the cabinet door 20 during pressure release when an explosion or high pressure occurs, thereby ensuring the stability of the cabinet door 20 and reducing the risk of the cabinet door 20 opening due to airflow impact.

[0063] Further, the ratio of the distance from the explosion vent 12 to the bottom of the cabinet 10 to the height of the cabinet 10 is M, 0.6 < M ≤ 1. That is, the explosion vent 12 can be arranged at the top of the cabinet 10 or at a certain height on the side of the cabinet 10.

[0064] In the present embodiment, the setting position of the explosion vent 12 takes into account the pressure release effect and the structural stability of the equipment. When the ratio of the distance from the explosion vent 12 to the bottom of the cabinet 10 to the height of the cabinet 10 is between 0.6 and 1, the explosion vent 12 can be flexibly arranged at the top of the cabinet 10 or at a higher position on the side of the cabinet 10 as needed. In the case of an explosion or high pressure, the gas and heat can be effectively discharged from the equipment, while avoiding excessive impact force on the structure of the cabinet 10, thereby improving the explosion-proof capability of the equipment.

[0065] Specifically, if the explosion vent 12 is arranged at the top of the cabinet 10, the gas and heat generated by the explosion will be released towards the open space, ensuring that the pressure generated by the explosion is evenly dispersed. This method is generally suitable for cases where there is enough space at the top of the equipment, which can effectively avoid excessive pressure on the bottom of the equipment or the cabinet door 20 due to the explosion gas. If the explosion vent 12 is arranged at a certain height on the side of the cabinet 10, the control of the pressure release channel can be further optimized to ensure that the gas can be stably released along the outside of the equipment. By arranging the explosion vent 12 at a height higher than the bottom of the equipment, it can be ensured that the released gas will not directly impact the bottom of the cabinet 10 or cause the equipment to tilt, while providing a more effective channel for the gas discharge outside the equipment.

[0066] It should be noted that all directional indications, such as upper, lower, left, right, front, rear, etc., are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0067] It should also be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element through a middle element.

[0068] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0069] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the utility model concept of the present application are included in the patent protection range of the present application.

Claims

1. A test explosion-proof device, characterized by, The utility model relates to a box door locking device, including: Box, open with containing chamber, explosion vent and opening, the explosion vent with the opening communicate the containing chamber with outside; Box door, set up in the box near the opening one side with the box movable connection; Explosion venting subassembly, with the box fixed connection, and cover the explosion vent; Locking assembly, fixed connection in one of the box door and the box, and with another one detachable connection, to lock or unlock the box door.

2. A test explosion-proof device according to claim 1, characterized in that The area of the explosion vent and the volume of the containing chamber are in the ratio of K, 0.2 < K < 0.

8.

3. A test explosion-proof device according to claim 1, characterized in that, The explosion venting subassembly includes explosion venting board and explosion-proof hinge, the explosion venting board cover sets up in the explosion vent, and the explosion-proof hinge articulates the explosion venting board with the box; The explosion venting subassembly further includes a first linkage assembly, which fixedly connects the explosion venting board and the box.

4. A test explosion-proof device according to claim 3, characterized in that The first linkage assembly includes a first fixed seat, a second fixed seat and a first connecting piece, the first fixed seat is fixedly connected with the box, the second fixed seat is fixedly connected with the explosion venting board, and the first connecting piece is connected in series with the first fixed seat and the second fixed seat.

5. A test explosion-proof device according to any one of claims 1 to 4, characterized in that, The box door includes a main body portion and an embedded portion connected to each other, the main body portion is hinged to the box, the embedded portion is embedded in the opening, the main body portion covers the opening, the locking assembly is arranged in the embedded portion, and the embedded portion is provided with a clearance groove for the locking assembly to extend out and retract.

6. A test explosion-proof device according to any one of claims 1 to 4, characterized in that The locking assembly includes a control assembly and a first locking assembly, the box door is provided with a locking groove, the control assembly is used to control the first locking assembly and the locking groove to be engaged to lock the box door; The first locking assembly includes a first transmission rod, a first connecting rod and a plurality of first locking pieces, the plurality of first locking pieces are parallel to each other and are rotatably connected to the box door to be inserted into and withdrawn from the locking groove, the first connecting rod is rotatably connected to one end of each of the plurality of first locking pieces away from the locking groove, one end of the first transmission rod is rotatably connected to the first connecting rod, and the other end of the first transmission rod is connected to the control assembly, and the control assembly is used to drive the first transmission rod to rotate.

7. A test explosion-proof device according to claim 6, characterized in that The locking assembly further includes a second locking assembly; The second locking assembly includes a second transmission rod, a second connecting rod and a plurality of second locking pieces, the plurality of second locking pieces are arranged on one side of the box door adjacent to the first locking pieces, the plurality of second locking pieces are parallel to each other and are rotatably connected to the box door to be inserted into and withdrawn from the locking groove, the second connecting rod is rotatably connected to one end of each of the plurality of second locking pieces away from the locking groove, one end of the second transmission rod is rotatably connected to the second connecting rod, and the other end of the second transmission rod is connected to the first connecting rod to drive the second connecting rod to rotate the plurality of second locking pieces.

8. A test explosion-proof device according to claim 7, characterized in that The first locking pieces are arranged on opposite sides of the box door, and the second locking pieces are arranged on the other opposite sides of the box door.

9. A test explosion-proof device according to claim 6, characterized in that The control assembly comprises a hand wheel, a connecting gear and a transmission gear, the hand wheel is arranged on the side of the box door away from the box body, the connecting gear is coaxially fixed with the hand wheel, the transmission gear is engaged with the connecting gear, and the transmission gear is connected with the first transmission rod to drive the first transmission rod to move.

10. A test explosion-proof apparatus according to any one of claims 1 to 4, characterized in that, The test explosion-proof device further comprises a second linkage assembly; The second linkage assembly comprises a third fixing seat, a fourth fixing seat and a second connecting piece, the third fixing seat is fixedly connected with the box body, the fourth fixing seat is fixedly connected with the box door, and the second connecting piece connects the third fixing seat and the fourth fixing seat in series.

11. A test explosion-proof apparatus according to any one of claims 1 to 4, characterized in that, A plurality of locking grooves are arranged around the opening in the box body.

12. A test explosion-proof apparatus according to any one of claims 1 to 4, characterized by The explosion vent is arranged away from the box door.

13. A test explosion-proof apparatus according to any one of claims 1 to 4, characterized by The ratio of the distance from the explosion vent to the bottom of the box body to the height of the box body is M, and 0.6

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