Installation structure of output intrinsically safe power supply

Abstract

The utility model discloses a mounting structure of an output intrinsically safe power supply, and belongs to the technical field of output intrinsically safe power supplies. The power supply mainly comprises an output intrinsically safe power supply assembly which is provided with an explosion-proof housing. The positioning assembly is provided with a mounting bottom plate used for supporting the explosion-proof shell and four groups of positioning blocks used for primarily positioning the explosion-proof shell, each positioning block is provided with a notch and a clamping block used for clamping the explosion-proof shell, a pressing rod is mounted on each clamping block, and each pressing rod is provided with a protruding end; and the storage box is installed on the side face of the installation bottom plate, a rotating shaft is installed in the storage box through a bearing, and two sets of second bevel gears are installed on the rotating shaft. According to the installation structure of the output intrinsically safe power supply, an operator can rapidly and synchronously control the four sets of clamping blocks to act through the driving assembly, clamping or loosening of the power supply assembly is completed, and compared with a traditional multi-set bolt installation mode, the installation and disassembly time is greatly saved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of output intrinsically safe power supply, in particular to an installation structure of output intrinsically safe power supply. BACKGROUND

[0002] The output intrinsically safe power supply is a special power supply device used in specific dangerous environments, such as coal mine underground, petroleum and chemical industry and the like; the output intrinsically safe power supply refers to a power supply device which limits the voltage, current and the like output by the power supply in a certain safety range through a series of technical measures, and ensures that the electric spark and thermal effect generated under normal working and specified fault conditions will not ignite the explosive mixture of combustible gas, vapor or dust in the surrounding environment.

[0003] As the patent with the publication number CN203788163U discloses a small-size output intrinsically safe power supply, which comprises a shell, a circuit board, a plastic upper cover, an overcurrent protection circuit provided with a MOS tube and a mounting bottom plate. The output intrinsically safe power supply is small in size, light in weight and high in output efficiency, and is convenient for installation and use of mine-used equipment.

[0004] The output intrinsically safe power supply needs to be first punched on the wall, and then the expansion bolt or chemical anchor bolt is used to fix the pre-prepared mounting bracket on the wall when the output intrinsically safe power supply is used on the wall which is dry, without dripping water and convenient for maintenance in the underground chamber or roadway. The mounting bracket should have sufficient strength and stability, and can bear the weight of the power supply module. The power supply module is fixed on the mounting bracket through multiple groups of bolts, and finally the power supply input and output cables are connected. However, when the power supply module needs to be replaced as a whole or needs to be deeply maintained, multiple groups of fixing bolts need to be removed first, and the power supply module is taken off from the mounting bracket. The operation is relatively cumbersome, and the disassembly may be difficult due to the rusting and corrosion of the bolts. Therefore, it is necessary to provide an installation structure of output intrinsically safe power supply to solve the above problems.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, it can contain information which does not constitute prior art. SUMMARY

[0006] Based on the above problems existing in the prior art, the application aims to provide an installation structure of output intrinsically safe power supply, which solves the problem that when the power supply module needs to be replaced as a whole or needs to be deeply maintained, multiple groups of fixing bolts need to be removed first, and the power supply module is taken off from the mounting bracket. The operation is relatively cumbersome, and the disassembly may be difficult due to the rusting and corrosion of the bolts.

[0007] The technical scheme adopted by the application to solve the technical problems is: an installation structure of an output intrinsically safe power supply, comprising an output intrinsically safe power supply assembly, the output intrinsically safe power supply assembly having an explosion-proof housing; a positioning assembly, the positioning assembly being arranged at the bottom of the explosion-proof housing, the positioning assembly having a mounting bottom plate for initially supporting the explosion-proof housing, and four groups of positioning blocks mounted on the mounting bottom plate for initially positioning the explosion-proof housing, the positioning blocks having notches and clamping blocks for clamping the explosion-proof housing, the clamping blocks being provided with pressing rods, the pressing rods having protruding ends; and a driving assembly, the driving assembly being mounted on the side of the mounting bottom plate, the driving assembly comprising: a storage box, the storage box being mounted on the side of the mounting bottom plate, a bearing being mounted with a rotating shaft on the storage box, and two groups of second bevel gears being mounted on the rotating shaft.

[0008] Further, a sealing plate is combined with the storage box, and the sealing plate is fixed to the storage box by fasteners.

[0009] Further, four groups of through grooves are formed in the mounting bottom plate, two groups of transverse through grooves being provided with guide rods penetrating therethrough, T-shaped grooves being formed in the guide rods, lead screws being mounted with bearings in the T-shaped grooves, two groups of screw grooves with opposite rotation directions being formed in the lead screws, the clamping blocks being threadedly connected to the screw grooves, the clamping blocks being adapted for use with the T-shaped grooves, one end of each of the two groups of lead screws penetrating the storage box, first bevel gears being mounted on one end of each of the lead screws, and the first bevel gears being engaged with the second bevel gears.

[0010] Further, an anti-slip surface is arranged at the part of the clamping block in contact with the explosion-proof housing.

[0011] Further, the anti-slip surface is made of silica gel.

[0012] Further, one end of the rotating shaft penetrates the storage box, and a rotating disc is mounted on one end of the rotating shaft.

[0013] The installation structure of the output intrinsically safe power supply provided by the application can quickly and synchronously control the actions of the four groups of clamping blocks through the driving assembly, so that the clamping or loosening of the power supply assembly is completed, thereby greatly saving the installation and dismounting time compared with the traditional multi-bolt installation mode; meanwhile, the four groups of positioning blocks in the positioning assembly can achieve the initial positioning of the power supply assembly, and the clamping blocks are designed to firmly fix the explosion-proof housing from the horizontal and vertical directions, thereby reducing the displacement risk caused by vibration or external force and further enhancing the stability of the installation.

[0014] In addition to the objects, features, and advantages described above, the application has other objects, features, and advantages. The application will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the application.

[0016] In the drawings:

[0017] Figure 1 is a schematic diagram of an overall installation structure of an output intrinsically safe power supply in the present application;

[0018] Figure 2 is Figure 1 a schematic diagram of an explosion-proof structure;

[0019] Figure 3 is Figure 2 an enlarged view of the A area structure in

[0020] In the drawings, various reference numerals are used to refer to the same or similar elements throughout the drawings.

[0021] 1, output intrinsically safe power supply assembly; 11, explosion-proof housing; 12, connection interface; 2, positioning assembly; 21, mounting bottom plate; 22, through slot; 23, positioning block; 24, guide rod; 25, T-shaped groove; 26, clamping block; 27, pressing rod; 28, lead screw; 3, driving assembly; 31, storage box; 32, first bevel gear; 33, rotating shaft; 34, second bevel gear; 35, rotating disc; 36, sealing plate. DETAILED DESCRIPTION

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0024] As shown in Figures 1-3 , the present application provides an installation structure of an output intrinsically safe power supply, comprising an output intrinsically safe power supply assembly 1, the output intrinsically safe power supply assembly 1 has an explosion-proof housing 11, the explosion-proof housing 11 surrounds and wraps the output intrinsically safe power supply assembly 1, so as to be suitable for overall protection of the output intrinsically safe power supply assembly 1, and a plurality of connection interfaces 12 are installed on the explosion-proof housing 11, the interface is used to establish connection with external lines, realize functions such as power transmission and signal interaction;

[0025] Meanwhile, a positioning assembly 2 is arranged at the bottom of the explosion-proof housing 11, which is used for initial positioning and installation of the output intrinsically safe power supply assembly 1, and the positioning assembly 2 comprises a mounting bottom plate 21 arranged at the bottom of the explosion-proof housing 11, which is used for supporting the explosion-proof housing 11, four groups of positioning blocks 23 are fixedly installed on the mounting bottom plate 21, the positioning blocks 23 have notches (not shown in the figure), and the explosion-proof housing 11 can be clamped between the four groups of positioning blocks 23 through the notches, so as to achieve the initial positioning of the output intrinsically safe power supply assembly 1;

[0026] And four groups of through grooves 22 are formed in the mounting bottom plate 21, and guide rods 24 (refer to Figure 2 ) are arranged through the two groups of through grooves 22 in the transverse direction, T-shaped grooves 25 are formed in the guide rods 24, and lead screws 28 are bearing-mounted in the T-shaped grooves 25, the lead screws 28 are adapted to rotate in the T-shaped grooves 25, two groups of screw grooves with opposite screw directions are formed in the lead screws 28, and two groups of clamping blocks 26 are threadedly connected to the lead screws 28 at the positions of the two groups of screw grooves, the clamping blocks 26 are adapted to be used with the T-shaped grooves 25, and it can be understood that the clamping blocks 26 can linearly slide in the T-shaped grooves 25;

[0027] When a rotating force is applied to the lead screw 28, since the lead screw 28 is bearing-mounted in the T-shaped groove 25 of the guide rod 24 and can freely rotate in the T-shaped groove 25, according to the characteristics of the screw, when the lead screw 28 rotates, the opposite clamping blocks 26 will move to the middle or to both sides synchronously, so as to achieve the effect of symmetrically clamping or releasing the object explosion-proof housing 11;

[0028] In the present application, in order to further strengthen the clamping effect of the explosion-proof housing 11, an anti-slip surface (not shown in the figure) can be arranged at the position where the clamping block 26 contacts the explosion-proof housing 11. The anti-slip surface is made of silica gel material, which has the characteristics of good flexibility and high friction coefficient. When the clamping block 26 clamps the explosion-proof housing 11, the anti-slip surface of the silica gel material can tightly fit the surface of the explosion-proof housing 11, increasing the friction between them, thereby improving the clamping degree of the explosion-proof housing 11, ensuring that the explosion-proof housing 11 is more stable in the clamped state, and reducing the risk of displacement caused by vibration or external force;

[0029] And a pressing rod 27 is fixedly installed on the clamping block 26, the pressing rod 27 has a protruding end, so that when the clamping block 26 approaches the explosion-proof housing 11 with the rotation of the lead screw 28, the pressing rod 27 synchronously approaches the explosion-proof housing 11 at this time, until the clamping block 26 is attached to the side surface of the explosion-proof housing 11, at this time the pressing rod 27 can synchronously realize the limitation of the explosion-proof housing 11 in the vertical direction, effectively preventing the explosion-proof housing 11 from appearing displacement in the vertical direction, further enhancing the fixing effect of the explosion-proof housing 11;

[0030] In order to drive four sets of clamping blocks 26 to clamp the output intrinsically safe power supply assembly 1 synchronously, as shown in the figure, a driving assembly 3 is installed on the side of the mounting base 21, which comprises a storage box 31 fixedly installed on the side of the mounting base 21, a rotating shaft 33 bearingly installed in the storage box 31, and two sets of second bevel gears 34 fixedly installed on the rotating shaft 33, which rotates in the storage box 31 to drive the two sets of second bevel gears 34 to rotate; Figures 2-3

[0031] Meanwhile, one end of the two sets of lead screws 28 penetrates through the storage box 31, and a first bevel gear 32 is fixedly installed on one end of the lead screw 28, which is engaged with the second bevel gear 34. When the rotating shaft 33 drives the second bevel gear 34 to rotate, the second bevel gear 34 will drive the corresponding first bevel gear 32 to rotate due to the engagement relationship, and in turn drive the lead screw 28 to rotate;

[0032] Meanwhile, one end of the two sets of lead screws 28 penetrates through the storage box 31, and a first bevel gear 32 is fixedly installed on one end of the lead screw 28, which is engaged with the second bevel gear 34. When the rotating shaft 33 drives the second bevel gear 34 to rotate, the second bevel gear 34 will drive the corresponding first bevel gear 32 to rotate due to the engagement relationship, and in turn drive the lead screw 28 to rotate;

[0033]

[0034] At this time, the two sets of clamping blocks 26 connected to the lead screws 28 will move linearly along the axial direction of the lead screws 28 in opposite directions due to the connection with different thread grooves, so as to complete the clamping or loosening action of the output intrinsically safe power supply assembly 1, in order to facilitate the disassembly and maintenance of the output intrinsically safe power supply (it needs to be noted that the mounting base can be installed on the mounting bracket);

[0035] ​​Compared with the bolt mounting, the operation is complicated and time-consuming. The driving assembly 3 can quickly and synchronously control the actions of the four groups of clamping blocks 26 by rotating the rotating disc 35, realize the clamping and loosening of the power supply assembly, greatly save the installation and disassembly time, greatly improve the work efficiency in the downhole operation scene of seconds, and reduce the equipment downtime.

[0036] At the same time, the installation of multiple groups of bolts may cause uneven force on the power supply assembly due to different tightening degrees, and the equipment is easily damaged after long-term use. The driving assembly 3 utilizes the synchronous driving principle to uniformly apply force to the four groups of clamping blocks 26, ensures that each part of the power supply assembly is uniformly stressed when fixed, effectively protects the power supply assembly, and prolongs its service life.

[0037] And the downhole environment is complex, the bolts are easily rusted and corroded by moisture and dust, which makes disassembly difficult. The driving assembly 3 effectively prevents dust through the sealing plate 36, the internal structural parts are less affected by the environment, and can stably operate, even in harsh environments, to ensure stable installation and disassembly operation of the power supply assembly.

[0038] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An installation structure of an output intrinsically safe power supply, characterized by: The utility model relates to an output intrinsically safe power supply assembly (1) has an explosion-proof housing (11), a positioning assembly (2) is set in the bottom of explosion-proof housing (11), positioning assembly (2) has the mounting base plate (21) for the initial support of explosion-proof housing (11), and four sets of positioning block (23) are installed in the mounting base plate (21) and the initial positioning of explosion-proof housing (11), the positioning block (23) has a gap, and has the clamping block (26) of the clamping of explosion-proof housing (11), the clamping block (26) is installed on the pressure rod (27) of protruding end, a drive assembly (3) is installed in the side of mounting base plate (21), drive assembly (3) includes: Storage box (31) is installed in the side of mounting base plate (21), bearing is installed in the rotatory shaft (33) in storage box (31), and two sets of second bevel gears (34) are installed on rotatory shaft (33). The sealing plate (36) is fixed in storage box (31) through fastener on storage box (31). Four sets of through grooves (22) are set up on mounting base plate (21), and the guide rod (24) is penetrated in the transverse two sets of through grooves (22), and T-shaped groove (25) is set up on guide rod (24), and the screw rod (28) is bearingly installed in T-shaped groove (25), and two sets of screw grooves of opposite rotation are set up on screw rod (28), and the clamping block (26) is screwly connected on screw groove, and the clamping block (26) is used with T-shaped groove (25), and one end of two sets of screw rod (28) is penetrated in storage box (31), and first bevel gear (32) is installed on one end of screw rod (28), and first bevel gear (32) is engaged with second bevel gear (34). The part of clamping block (26) and explosion-proof housing (11) contact sets up antiskid surface.

2. The mounting structure of an output intrinsically safe power supply according to claim 1, characterized by: The antiskid surface selects silica gel material.

3. The mounting structure of an output intrinsically safe power supply according to claim 1, characterized by: One end of rotatory shaft (33) is penetrated in storage box (31), and rotary disc (35) is installed on one end of rotatory shaft (33).

4. The mounting structure of an output intrinsically safe power supply according to claim 3, characterized by: ​ 5. The mounting structure of an output intrinsically safe power supply according to claim 4, characterized by: ​ 6. The mounting structure of an output intrinsically safe power supply according to claim 1, characterized by: ​

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