Portable power supply of geophysical exploration instrument

Abstract

The invention relates to the technical field of geophysical exploration instruments, in particular to a portable power supply of a geophysical exploration instrument, which comprises a portable power supply and a plurality of power plugs, a connecting frame is connected to the outer side of the output end of the surface of the portable power supply, and a plurality of symmetrical fixed sliding rails are connected to the front surfaces of the two sides of the connecting frame. A sliding block is slidably connected into each fixed sliding rail, the surfaces of the multiple sliding blocks are jointly and fixedly connected with a protective cover, a positioning sealing module is arranged in the protective cover, movable sliding rails are rotatably connected to the ends, away from the portable power source, of the multiple fixed sliding rails, and a locking module is arranged on the outer side of the protective cover. The portable power supply interface is composed of the portable power supply, the multi-type power supply plug, the positioning sealing module and the locking module, flexible opening and closing of the protection cover are achieved through cooperation of the fixed sliding rail and the movable sliding rail, the positioning sealing module and the locking module cooperate, and the problems that an existing power supply interface is insufficient in locking and weak in protection are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geophysical exploration instruments, in particular to a portable power supply for geophysical exploration instruments. BACKGROUND

[0002] Geophysical exploration instruments are special devices for detecting the physical properties of the earth's interior (such as density, magnetism, electrical properties, elasticity, etc.), widely used in mineral resource exploration, geological disaster warning, engineering geological investigation and oil and gas resource exploration and development, etc. The core role is to collect and analyze the physical signals fed back by the underground medium, and to invert the geological structure and material distribution law, to provide accurate data support for subsequent engineering planning, resource development and geological research. According to the detection principle, such instruments can be divided into seismic exploration instruments, electromagnetic exploration instruments, gravity exploration instruments, etc. Influenced by the fact that the exploration scene is mostly in complex outdoor environments (such as mountains, deserts, marshes, etc.), the instrument cannot rely on fixed power supply facilities. The portable power supply, as a core supporting component, directly determines the endurance, operation stability and field adaptability of the instrument, and is the key equipment to ensure the continuous development of exploration work.

[0003] However, in the field of geophysical exploration, the existing portable power supply needs to be frequently connected with different types of exploration instruments. The existing interface is mostly a standard plug-in structure, which only relies on the friction force of the plug and socket to realize connection, resulting in insufficient locking and positioning function. In dynamic scenes such as mountain trekking and equipment vibration, the interface is prone to looseness and displacement due to external disturbance, leading to unstable contact resistance and fluctuation of power supply voltage, which in turn affects the collection accuracy of exploration data. Moreover, the simple dust cover configured at the interface can only achieve basic dust prevention and cannot resist harsh environments such as rain, sand and condensation in the field. Water vapor and dust can easily enter the interface gap, not only forming an oxidation layer on the surface of the metal contact and exacerbating the poor contact problem, but also causing contact wear and failure due to long-term corrosion, resulting in the power supply and instrument cannot be normally adapted, directly interrupting the exploration work. SUMMARY

[0004] In view of the above problems, the present application provides a portable power supply for geophysical exploration instruments to solve the problems raised in the background art. The portable power supply is composed of a portable power supply, multiple types of power supply plugs, a positioning and sealing module and a locking module. The fixed slide rail and the movable slide rail cooperate to realize flexible opening and closing of the protective cover. The positioning and sealing module and the locking module work together to solve the problems of insufficient locking and weak protection of the existing power supply interface.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: A portable power supply for geophysical prospecting instruments, comprising a portable power supply and a plurality of power supply plugs, the surface of the portable power supply is connected with a connecting frame outside the output end, the two sides of the connecting frame are connected with a plurality of symmetrical fixed sliding rails on the front surface, the inside of each fixed sliding rail is connected with a sliding block, the surface of a plurality of sliding blocks is fixedly connected with a protective cover, the inside of the protective cover is provided with a positioning and sealing module, the end of the fixed sliding rail away from the portable power supply is rotatably connected with a movable sliding rail, the outside of the protective cover is provided with a locking module, and the protective cover is limited by the locking module.

[0006] Preferably, the insertion end of each power supply plug is inserted into the jack of the portable power supply, and the plurality of power supply plugs comprises two two-prong plugs and a three-prong plug, and the surface of the fixed sliding rail is in contact with the surface of the movable sliding rail after folding.

[0007] Preferably, the positioning and sealing module comprises two first positioning shells and a second positioning shell, the outer surfaces of the two first positioning shells and the outer surface of the second positioning shell are connected with the inner wall of the protective cover, the inner wall of each first positioning shell is connected with a third positioning shell, each third positioning shell corresponds to a two-prong plug, the second positioning shell corresponds to a three-prong plug, the inside of each second positioning shell is provided with a limiting assembly, the inside of the second positioning shell is clamped with the three-prong plug, the inner wall of the second positioning shell is in contact with the surface of the three-prong plug, the inside of each second positioning shell is in contact with the power cord root of the two-prong plug, and the end of the power supply plug away from the portable power supply penetrates through the wire slot at the bottom of the third positioning shell, the wire slot at the bottom of the first positioning shell and the wire slot at the bottom of the protective cover and extends to the outside of the protective cover.

[0008] Preferably, the limiting assembly comprises two symmetrical bases connected to the inner wall of each third positioning shell and a fixed pressing plate connected to the inner wall of each third positioning shell and parallel to the base, the surface of each fixed pressing plate is in contact with the surface of the two-prong plug corresponding to the power supply plug, the top end of each side surface of the base close to the jack of the portable power supply is movably hinged with a movable pressing plate, the bottom end of each base is fixedly connected with a damping spring together with the bottom surface of the movable pressing plate, the surface of each movable pressing plate is fixedly connected with a plurality of anti-skid pads, and each anti-skid pad is in contact with the surface of the two-prong plug corresponding to the power supply plug.

[0009] Preferably, the front surface of the connecting frame is connected with a sealing strip, the surface of the sealing strip is in contact with the outer surface of the protective cover, and the inside of the connecting frame is clamped with the outer surface of the protective cover.

[0010] Preferably, the surface of the connecting frame and the bottom surface of the protective cover are fixedly connected with half-round sealing sleeves corresponding to the power plug wires, the interiors of every two half-round sealing sleeves are clamped with the outer surface of the power plug wires, and every two half-round sealing sleeves form a complete sealing sleeve.

[0011] Preferably, the locking module comprises locking plugs located on the side faces of each sliding block, each locking plug is located inside the fixed sliding rail socket in the initial state, each locking plug is in the shape of inverted L, the surface of each fixed sliding rail located on one side of the socket is fixedly connected with two limiting columns, the outer side of each limiting column is sleeved with a first reset spring, the side face of each locking plug close to the movable sliding rail is provided with an arc-shaped pressing groove with gradually increasing height from bottom to top, the side face of each locking plug close to the movable sliding rail is provided with a reset groove located on one side of the top end of the arc-shaped pressing groove, the inner wall of each reset groove is movably hinged with a baffle, the surface of each baffle is fixedly connected with a first triangular assembly plate, the inner wall of each reset groove above the baffle is fixedly connected with a second triangular assembly plate parallel to the oblique edge of the first triangular assembly plate, the oblique surface of each first triangular assembly plate is fixedly connected with the oblique surface of the second triangular assembly plate together with a second reset spring, the upper surface of each movable sliding rail close to the fixed sliding rail is provided with a moving groove, the interior of each moving groove is slidingly connected with a moving block, the upper surface of each moving block is fixedly connected with a pressing plate, the side face of each pressing plate close to the fixed sliding rail is fixedly connected with an extension column, the outer surface of each extension column away from the pressing plate is connected with a bearing matched with the arc-shaped pressing groove, the side face of the pressing plate is fixedly connected with a first elastic buckle, and the upper surface of each movable sliding rail located on one side of the moving groove is fixedly connected with a first clamping seat.

[0012] Preferably, the outer surface of each locking plug is slidingly connected with the socket of the fixed sliding rail, the top end bottom surface of each limiting column is in contact with the surface of the locking plug, the two ends of each first reset spring are fixedly connected with the bottom surface of the locking plug and the upper surface of the fixed sliding rail, the bearing in the initial state is located on one side of the bottom end of the arc-shaped pressing groove, the first elastic buckle located on the other side of the moving groove corresponds to the first clamping seat, and the surface groove of the protective cover is movably hinged with an auxiliary handle.

[0013] Preferably, the side face of each baffle close to the pressing plate is an oblique surface, the side face of each baffle away from the pressing plate is provided with a clamping groove, the side face of each pressing plate close to the baffle is an oblique surface, and the side face of each pressing plate away from the baffle is fixedly connected with a clamping plate matched with the clamping groove.

[0014] Preferably, the upper surface of each fixed sliding rail is fixedly connected with a second elastic buckle on one side of the locking plugboard, and the upper surface of each movable sliding rail is fixedly connected with a second buckle seat matched with the second elastic buckle, and the surface of each second elastic buckle is clamped with the inner groove of the second buckle seat.

[0015] Compared with the prior art, the present application has the following advantages: 1. By the layered adaptation of the first positioning shell, the second positioning shell and the third positioning shell in the positioning and sealing module, combined with the cooperative matching of the base, the movable pressing plate, the fixed pressing plate and the damping spring of the limiting assembly, the two-pin plug and the triangular plug can be precisely positioned and elastically clamped, the movable pressing plate is always attached to the plug surface under the elastic force of the damping spring, and the frictional resistance is increased by cooperating with the non-slip pad to avoid the loosening and displacement of the plug in dynamic scenes such as outdoor carrying and jolting, and at the same time, the fixed pressing plate and the movable pressing plate form a bidirectional clamping to ensure the stable docking of the plug and the power supply jack, effectively solving the problems of unstable contact resistance and power supply voltage fluctuation caused by the dependence on friction force in the existing interface, ensuring the data acquisition accuracy of the exploration instrument, and preventing data loss or interruption caused by loose interface; 2. By the clamping cooperation of the sealing strip on the surface of the connecting frame and the protective cover, and the wrapping and sealing of the power plug wire by the semicircular sealing sleeve on the bottom surface of the connecting frame and the protective cover, a full-dimensional sealing and protection structure can be formed, the sealing strip fills the gap between the protective cover and the connecting frame, and the semicircular sealing sleeve completely attaches to the surface of the wire after combination, the double-sealing structure cooperatively blocks the invasion of water vapor and dust in the harsh environment such as rainstorm, sandstorm and condensation, avoids the formation of oxide layer on the surface of the interface metal contact by water vapor and dust, prevents the wear and contact failure of the contact due to long-term corrosion, solves the problem of insufficient protection of the existing simple dust cover, ensures the long-term stable adaptation of the power supply and the exploration instrument, prolongs the service life of the interface, and avoids the interruption of exploration work caused by interface failure; 3. By the linkage cooperation of the locking plugboard, the arc-shaped pressing groove, the extrusion plate, the extension column, the bearing and the return spring of the locking module, combined with the rotating and folding structure of the movable sliding rail and the fixed sliding rail, firm locking can be realized after the protective cover is closed, the extrusion plate is pushed to drive the bearing on the extension column to slide along the arc-shaped pressing groove, the locking plugboard is driven to move downward to limit the sliding block, at the same time, the baffle and the clamping plate are clamped to fix the position of the extrusion plate, forming a double-locking guarantee to avoid accidental opening of the protective cover during outdoor movement, cooperating with the clamping action of the positioning and sealing module to further strengthen the stability of the plug connection, prevent the interface from loosening caused by external disturbance, and at the same time, the sealing structure always maintains a closed state to continuously block the invasion of external pollutants, effectively solving the problems of insufficient locking and positioning and poor protection performance of the interface, and improving the environmental adaptability and operation reliability of the portable power supply in the field. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 2 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 3 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 4 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 5 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 6 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 7 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 8 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 9 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 10 The whole structure of the invention is shown in the schematic diagram of the perspective view; Figure 11 The whole structure of the invention is shown in the schematic diagram of the perspective view.

[0017] In the figure: 1, portable power supply; 2, connecting frame; 3, movable slide rail; 4, power plug; 5, auxiliary handle; 6, fixed slide rail; 7, protective cover; 8, semicircular sealing sleeve; 9, sealing strip; 10, sliding block; 11, first positioning shell; 12, second positioning shell; 13, third positioning shell; 14, base; 15, movable pressing plate; 17, damping spring; 18, non-slip pad; 19, fixed pressing plate; 20, first elastic buckle; 21, extrusion plate; 22, moving block; 23, extension column; 24, bearing; 25, first clamping seat; 26, second elastic buckle; 27, second clamping seat; 28, limiting column; 29, first return spring; 30, return groove; 31, arc-shaped pressing groove; 32, second triangular assembly plate; 33, second triangular assembly plate; 34, second return spring; 35, baffle; 36, clamping groove; 37, locking plug; 38, moving groove; 39, clamping plate. DETAILED DESCRIPTION

[0018] 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.

[0019] Please refer toFigures 1 to 11 The utility model provides a geophysical exploration instrument portable power supply, including portable power supply 1 and a plurality of power plugs 4, the surface of portable power supply 1 is located the outside connection frame 2 is connected at the output, the both sides of connection frame 2 are connected with a plurality of symmetrical fixed slide rail 6, the inside of each fixed slide rail 6 is slidably connected with sliding block 10, the surface of a plurality of sliding blocks 10 is fixedly connected with protective cover 7, the inside of protective cover 7 is provided with positioning sealing module, the end of a plurality of fixed slide rails 6 away from portable power supply 1 is rotatably connected with movable slide rail 3, the outside of protective cover 7 is provided with locking module, and fixed slide rail 6 is positioned to protective cover 7 through locking module.

[0020] Working principle: the connection frame 2 can be fixedly connected to the outside edge of the output end of the portable power supply 1 by bolts in the scheme, the connection frame 2 is integrally formed of aluminum alloy material, the inside dimension of which is adapted to the size of the output end area of the portable power supply 1, the both sides of the connection frame 2 are fixedly provided with two symmetrical fixed slide rails 6 by welding, the fixed slide rails 6 are U-shaped groove structures, the groove width of which is gap-fitted with the thickness of the sliding blocks 10, the inside of each fixed slide rail 6 is slidably connected with a sliding block 10, the sliding blocks 10 can be fixedly connected with the protective cover 7 by screws, the four sliding blocks 10 are respectively located at the four corner positions of the protective cover 7, and jointly realize the smooth sliding of the protective cover 7, the protective cover 7 is a rectangular shell structure, and an installation space for the positioning sealing module is reserved in the inside, the end of a plurality of fixed slide rails 6 away from the portable power supply 1 is rotatably connected with a movable slide rail 3 by a pin shaft, the movable slide rail 3 has the same structure as the fixed slide rail 6 and can be rotated by 180° around the pin shaft, and the outside of the protective cover 7 is provided with a locking module, and the fixed slide rail 6 is fixedly positioned to the protective cover 7 through the locking module. The connection frame 2 ensures the structural strength, adapts to the field portable demand, the gap-fitting of the fixed slide rail 6 and the sliding block 10 ensures the smooth sliding of the protective cover 7, the foldable feature of the movable slide rail 3 can extend the sliding stroke when the protective cover 7 is opened, and can be folded and stored when closed without occupying additional space, the positioning sealing module can accurately position and seal the power plug 4, and the locking module can prevent the protective cover 7 from being accidentally opened, solve the problem that the existing power supply interface lacks effective protection and locking, and improve the reliability during field operation.

[0021] Please refer to Figures 1 to 11 The insertion end of each power plug 4 is inserted into the jack of the portable power supply 1, the plurality of power plugs 4 include two two-angle plugs and a triangular plug, and the surface of the fixed slide rail 6 is in contact with the surface of the folded movable slide rail 3.

[0022] Working principle: the insertion end of each power plug 4 is inserted into the socket of the portable power supply 1 with interference fit, ensuring initial connection stability, the multiple power plugs 4 include two two-pin plugs and one three-pin plug, the two-pin plugs are Type-A specification, and the three-pin plug is three-pole grounding specification, which are suitable for different power and different grounding requirements of exploration instruments, the side of the fixed slide rail 6 away from the portable power supply 1 is in close contact with the side of the folded movable slide rail 3, the movable slide rail 3 is attached to the surface of the fixed slide rail 6 by its own gravity after folding, and the end thereof is flush with the edge of the connecting frame 2.

[0023] Please refer to Figures 1 to 11 , the positioning and sealing module includes two first positioning shells 11 and a second positioning shell 12, the outer surfaces of the two first positioning shells 11 and the outer surface of the second positioning shell 12 are connected with the inner wall of the protective cover 7, the inner wall of each first positioning shell 11 is connected with a third positioning shell 13, each third positioning shell 13 corresponds to a two-pin plug, the second positioning shell 12 corresponds to a three-pin plug, a limiting assembly is arranged in the interior of each second positioning shell 12, the interior of the second positioning shell 12 is clamped with the three-pin plug, the inner wall of the second positioning shell 12 is in contact with the surface of the three-pin plug, the interior of each second positioning shell 12 is in contact with the power cord root of the two-pin plug, and the end of the power plug 4 away from the portable power supply 1 penetrates through the cord slot at the bottom of the third positioning shell 13, the cord slot at the bottom of the first positioning shell 11 and the cord slot at the bottom of the protective cover 7 and extends to the outside of the protective cover 7.

[0024] Working principle: the first positioning shell 11 and the second positioning shell 12 are both made of ABS engineering plastic by injection molding, and their outer surfaces can be fixedly connected with the inner wall of the protective cover 7 through buckling, the inner wall of each first positioning shell 11 is connected with a third positioning shell 13 through screws, the inner profile of the third positioning shell 13 is adapted to the shape of the two-pin plug, each third positioning shell 13 corresponds to a two-pin plug, the inner profile of the second positioning shell 12 is adapted to the shape of the three-pin plug, and a limiting assembly is arranged in the interior of each second positioning shell 12, the interior of the second positioning shell 12 is clamped with the three-pin plug with interference, the inner wall of the second positioning shell 12 is pasted with a rubber pad, which is in close contact with the surface of the three-pin plug, the interior of each second positioning shell 12 is in contact with the power cord root of the two-pin plug on both sides, and a buffer rubber ring is arranged between the power cord root and the inner wall of the second positioning shell 12. The end of the power plug 4 away from the portable power supply 1 penetrates through the cord slot at the bottom of the third positioning shell 13, the cord slot at the bottom of the first positioning shell 11 and the cord slot at the bottom of the protective cover 7 and extends to the outside of the protective cover 7, the size of the cord slot is adapted to the outer diameter of the power cord, achieving gap sealing; The layered positioning structure realizes accurate positioning by matching the shapes of different positioning shells and corresponding plugs, avoids displacement of the plug inside the protective cover 7, and enhances the stability and buffering effect of positioning by the rubber pads on the inner walls of the second positioning shells 12 and the buffer rubber rings at the roots of the power cords.

[0025] Please refer to Figures 1 to 11 The limiting assembly includes two symmetrical bases 14 connected to the inner walls of each third positioning shell 13 and a fixed pressing plate 19 connected to the inner wall of each third positioning shell 13 and parallel to the base 14. The surface of each fixed pressing plate 19 is in contact with the surface of the two-pin plug corresponding to the power plug 4. The top end of each base 14 near the side of the portable power supply 1 jack is movably hinged with a movable pressing plate 15. The bottom end of each base 14 is fixedly connected with a damping spring 17 at the bottom surface of the movable pressing plate 15. The surface of each movable pressing plate 15 is fixedly connected with a plurality of anti-skid pads 18. Each anti-skid pad 18 is in contact with the surface of the two-pin plug corresponding to the power plug 4.

[0026] Working principle: The base 14 is fixed to the inner wall of the third positioning shell 13 by a screw. The fixed pressing plate 19 is a rectangular plate structure made of rubber. Its surface is fixed to the inner wall of the third positioning shell 13 by adhesion. The surface of each fixed pressing plate 19 is in close contact with the surface of the two-pin plug corresponding to the power plug 4. The top end of each base 14 near the side of the portable power supply 1 jack is movably hinged with a movable pressing plate 15. The movable pressing plate 15 is an arc-shaped structure that fits the surface profile of the two-pin plug. The bottom end of each base 14 is fixedly connected with a damping spring 17 at the bottom surface of the movable pressing plate 15. The damping spring 17 is in a pre-compressed state in the initial state, providing a continuous compression force for the movable pressing plate 15. The surface of each movable pressing plate 15 is fixedly connected with a plurality of anti-skid pads 18 by adhesion. The anti-skid pads 18 are made of silicone and have anti-slip patterns on their surfaces. Each anti-skid pad 18 is in close contact with the surface of the two-pin plug corresponding to the power plug 4. The rubber material of the fixed pressing plate 19 not only enhances the fit with the plug but also prevents scratching the plug surface. The movable pressing plate 15 is always pressed tightly towards the plug under the compression force of the damping spring 17, forming a two-way clamping with the fixed pressing plate 19. The anti-slip patterns of the anti-skid pads 18 increase the frictional resistance, effectively preventing the plug from loosening and shifting during movement in the wild. The damping spring 17 ensures the stability of clamping without causing excessive compression damage to the plug, solving the problem of loose connection of existing plugs and ensuring the continuity and stability of power supply.

[0027] Please refer to Figures 1 to 11The front surface of the connecting frame 2 is connected with a sealing strip 9, the surface of the sealing strip 9 is in contact with the outer surface of the protective cover 7, and the inside of the connecting frame 2 is clamped with the outer surface of the protective cover 7.

[0028] Working principle: the sealing strip 9 is annular in structure and is made of EPDM rubber material, which has good high and low temperature resistance and aging resistance. The cross section of the sealing strip 9 is trapezoidal in structure, and its height is slightly larger than the gap between the connecting frame 2 and the protective cover 7. The surface of the sealing strip 9 is in close contact with the outer surface of the protective cover 7. The inside of the connecting frame 2 is provided with a stepped structure, and the edge of the protective cover 7 is clamped with the stepped structure of the connecting frame 2. The clamping gap is 0.5mm, which ensures that the protective cover 7 is closed in place. The sealing strip 9 made of EPDM rubber material can adapt to the temperature range of-40℃~80℃ in the wild. The trapezoidal cross section is deformed when the protective cover 7 is clamped, fully filling the gap between the connecting frame 2 and the protective cover 7, forming a tight seal. The stepped structure of the connecting frame 2 ensures the accurate closing position of the protective cover 7, and limits the displacement of the sealing strip 9, preventing the invasion of water vapor and dust from the environment such as rain, dust and condensation into the interface area, solving the problem of poor protection effect of the existing simple dust cover, and avoiding the oxidation and corrosion of the interface metal contact.

[0029] Please refer to Figures 1 to 11 The surface of the connecting frame 2 and the bottom surface of the protective cover 7 are both fixedly connected with half-round sealing sleeves 8 corresponding to the wires of the power plug 4. The inside of every two half-round sealing sleeves 8 is clamped with the outer surface of the wires of the power plug 4. Every two half-round sealing sleeves 8 form a complete sealing sleeve.

[0030] Working principle: the surface of the connecting frame 2 and the bottom surface of the protective cover 7 are both integrally formed with half-round sealing sleeves 8 corresponding to the wires of the power plug 4 by injection molding. The half-round sealing sleeves 8 are made of silica gel material, which has good elasticity and flexibility. The inside of every two corresponding half-round sealing sleeves 8 is provided with an arc-shaped groove adapted to the outer surface of the wires of the power plug 4. The inner wall of the arc-shaped groove is provided with anti-slip convex patterns. The inside of every two half-round sealing sleeves 8 is interference clamped with the outer surface of the wires of the power plug 4. After splicing, a complete circular sealing sleeve is formed. The interference amount between the inner diameter of the sealing sleeve and the outer diameter of the wire is 0.3mm, which ensures the sealing effect. The half-round sealing sleeves 8 made of silica gel material have good elasticity, which can adapt to the slight shaking of the wires. At the same time, the interference clamping and anti-slip convex patterns enhance the adhesion to the wires, preventing water vapor and dust from invading the inside from the wire exit part. The pair of spliced sealing sleeves do not affect the installation and disassembly of the wires, and cooperate with the sealing strip 9 to form a full-dimensional sealing protection from the interface area to the wire exit part, solving the sealing problem of the wire connection, and further improving the overall protection performance.

[0031] Please refer to Figures 1 to 11The locking module comprises locking inserts 37 located on the side faces of each sliding block 10, each locking insert 37 is located inside the fixed sliding rail 6 socket in the initial state, each locking insert 37 is inverted L-shaped, the surface of each fixed sliding rail 6 located on one side of the socket is fixedly connected with two limiting columns 28, the outer side of each limiting column 28 is sleeved with a first reset spring 29, the side face of each locking insert 37 close to the movable sliding rail 3 is provided with an arc-shaped pressing groove 31 with gradually increasing height from bottom to top, the side face of each locking insert 37 close to the movable sliding rail 3 is provided with a reset groove 30 located on one side of the top end of the arc-shaped pressing groove 31, the inner wall of each reset groove 30 is movably hinged with a baffle 35, the surface of each baffle 35 is fixedly connected with a first triangular assembly plate 32, the inner wall of each reset groove 30 above the baffle 35 is fixedly connected with a second triangular assembly plate 33 parallel to the oblique edge of the first triangular assembly plate 32, the oblique surface of each first triangular assembly plate 32 is fixedly connected with the second reset spring 34 together with the oblique surface of the second triangular assembly plate 33, the upper surface of each movable sliding rail 3 close to the fixed sliding rail 6 is provided with a moving groove 38, the inner part of each moving groove 38 is slidably connected with a moving block 22, the upper surface of each moving block 22 is fixedly connected with a pressing plate 21, the side face of each pressing plate 21 close to the fixed sliding rail 6 is fixedly connected with an extension column 23, the outer surface of each extension column 23 away from the pressing plate 21 is connected with a bearing 24 matched with the arc-shaped pressing groove 31, one side of the pressing plate 21 is fixedly connected with a first elastic buckle 20, the upper surface of each movable sliding rail 3 located on one side of the moving groove 38 is fixedly connected with a first clamping seat 25. The outer surface of each locking insert 37 is slidably connected with the socket of the fixed sliding rail 6, the top end bottom surface of each limiting column 28 is in contact with the surface of the locking insert 37, the two ends of each first reset spring 29 are fixedly connected with the bottom surface of the locking insert 37 and the upper surface of the fixed sliding rail 6, the bearing 24 in the initial state is located on one side of the bottom end of the arc-shaped pressing groove 31, the first elastic buckle 20 is located on the other side of the moving groove 38 corresponding to the first clamping seat 25, the surface groove of the protective cover 7 is movably hinged with the auxiliary handle 5. The side face of each baffle 35 close to the pressing plate 21 is an inclined surface, the side face of each baffle 35 away from the pressing plate 21 is provided with a clamping groove 36, the side face of each pressing plate 21 close to the baffle 35 is an inclined surface, the side face of each pressing plate 21 away from the baffle 35 is fixedly connected with a clamping plate 39 matched with the clamping groove 36.

[0032] Working principle: the locking plug-in plate 37 is inverted L-shaped structure, adopts high strength engineering plastic material, each locking plug-in plate 37 is located in the inside of fixed slide rail 6 socket in initial state, the lower surface of horizontal section is in contact with the upper surface of one side of sliding block 10, the surface of each fixed slide rail 6 located in the socket side is fixedly connected with two limit posts 28, the limit post 28 is cylindrical structure, the outer side of each limit post 28 is sleeved with first reset spring 29, the first reset spring 29 is in precompression state in initial state, the side of each locking plug-in plate 37 close to movable slide rail 3 is provided with arc-shaped pressing groove 31 with height gradually increasing from bottom to top, the arc of arc-shaped pressing groove 31 is matched with the outer diameter of bearing 24, the side of each locking plug-in plate 37 close to movable slide rail 3 is provided with reset groove 30 located in the top side of arc-shaped pressing groove 31, reset groove 30 is rectangular groove, the inner wall of each reset groove 30 is movably hinged with baffle 35 in the middle part, baffle 35 is rectangular plate structure, the surface of each baffle 35 is fixedly connected with first triangular assembly plate 32 through screw, the inner wall of each reset groove 30 is fixedly connected with second triangular assembly plate 33 parallel to the oblique edge of first triangular assembly plate 32 above baffle 35, the bevel of first triangular assembly plate 32 and second triangular assembly plate 33 is polished, the bevel of each first triangular assembly plate 32 is fixedly connected with the bevel of second triangular assembly plate 33 with second reset spring 34, second reset spring 34 is tension spring, in precompression state, the upper surface of each movable slide rail 3 close to fixed slide rail 6 is provided with moving groove 38, moving groove 38 is rectangular groove, the inside of each moving groove 38 is movably connected with moving block 22, moving block 22 is clearance fit with moving groove 38, the upper surface of each moving block 22 is fixedly connected with extrusion plate 21 through screw, one side of each extrusion plate 21 close to fixed slide rail 6 is connected with extension column 23, the outer surface of one end of each extension column 23 away from extrusion plate 21 is connected with bearing 24 matched with arc-shaped pressing groove 31 through bearing seat, one side of extrusion plate 21 is integrally formed with first elastic buckle 20 through injection molding, first elastic buckle 20 is plastic buckle with elastic deformation capacity, the upper surface of each movable slide rail 3 is fixedly connected with first clamping seat 25 on one side of moving groove 38 through screw, the inside of first clamping seat 25 is provided with clamping groove matched with first elastic buckle 20, the outer surface of each locking plug-in plate 37 is movably connected with socket of fixed slide rail 6, the top end bottom surface of each limit post 28 is in contact with the surface of locking plug-in plate 37, which plays a guiding and limiting role, the two ends of each first reset spring 29 are fixedly connected with the bottom surface of locking plug-in plate 37 and the upper surface of fixed slide rail 6, bearing 24 is located at the bottom end of arc-shaped pressing groove 31 in initial state, first elastic buckle 20 is located on the other side of moving groove 38 corresponding to first clamping seat 25, the surface groove of protection cover 7 is movably hinged with auxiliary handle 5 through pin shaft, auxiliary handle 5 is U-shaped structure, which can be folded and stored in the groove,The side of each baffle plate 35 close to the extrusion plate 21 is inclined at an angle of 45°, and the side of each baffle plate 35 away from the extrusion plate 21 is provided with a clamping groove 36, which is a rectangular groove. The side of each extrusion plate 21 close to the baffle plate 35 is inclined to match the inclined surface of the baffle plate 35, and the side of each extrusion plate 21 away from the baffle plate 35 is fixedly connected with a clamping plate 39 matched with the clamping groove 36 through a screw. When locked, the extrusion plate 21 drives the moving block 22 to slide along the moving groove 38, the bearing 24 on the extension column 23 slides along the arc-shaped pressing groove 31, the height difference of the arc-shaped pressing groove 31 drives the locking plug plate 37 to move downward, limiting the sliding block 10, and the inclined surface of the extrusion plate 21 contacts with the inclined surface of the baffle plate 35, pushing the baffle plate 35 to lift upward, finally the clamping plate 39 is clamped with the clamping groove 36, the first elastic buckle 20 is clamped with the first clamping seat 25, forming double locking, ensuring the locking of the protective cover 7, avoiding accidental opening during field movement. When unlocked, press the first elastic buckle 20 to separate from the first clamping seat 25, pull the extrusion plate 21, the first reset spring 29 drives the locking plug plate 37 to reset, the second reset spring 34 drives the baffle plate 35 to reset, convenient operation. The auxiliary handle 5 facilitates the opening and closing operation of the protective cover 7, without occupying extra space, solving the problem of loose locking and accidental opening of the existing protective cover 7, ensuring the continuity of sealing protection.

[0033] Please refer to Figures 1 to 11 The upper surface of each fixed slide rail 6 on one side of the locking plug plate 37 is fixedly connected with a second elastic buckle 26, and the upper surface of each movable slide rail 3 is fixedly connected with a second clamping seat 27 matched with the second elastic buckle 26. The surface of each second elastic buckle 26 is clamped with the internal groove of the second clamping seat 27.

[0034] Working principle: The upper surface of each fixed slide rail 6 on one side of the locking plug plate 37 is integrally formed with a second elastic buckle 26 through injection molding. The second elastic buckle 26 is a plastic buckle with elastic deformation capability, and the end thereof is provided with a wedge-shaped guide surface. The upper surface of each movable slide rail 3 is fixedly connected with a second clamping seat 27 matched with the second elastic buckle 26 through a screw. The second clamping seat 27 is a U-shaped structure, and the size of the internal groove thereof matches the size of the second elastic buckle 26. The surface of each second elastic buckle 26 is clamped with the internal groove of the second clamping seat 27. The wedge-shaped guide surface of the second elastic buckle 26 facilitates the clamping cooperation when the movable slide rail 3 rotates, and the interference clamping ensures the connection firmness. When the movable slide rail 3 is unfolded, the second elastic buckle 26 is separated from the second buckle seat 27, thereby providing a stable extension track for the sliding of the protective cover 7. When folded, the same is fixed through clamping, so as to realize compact storage and prevent the movable slide rail 3 from rotating at will, thereby solving the problem of unstable positioning of the movable slide rail 3 and affecting the sliding stability of the protective cover 7, and improving the reliability and portability of the overall structure.

[0035] In summary, the overall device in use: first according to the required interface type of the geophysical exploration instrument connected by field exploration, select the corresponding two-pin plug or three-pin plug, the plug end of the selected power plug 4 and the corresponding jack of the portable power supply 1 are inserted with interference, to ensure the stability of the initial power supply connection, at this time the fixed slide rail 6 and the movable slide rail 3 are in the same horizontal line in the initial state, together forming a complete sliding track, providing basic support for the installation of the protective cover 7, then the protective cover 7 is aligned with the track of the fixed slide rail 6 and the movable slide rail 3 through the four corner sliders 10, slowly push the protective cover 7, make the slider 10 slide smoothly along the track, until the protective cover 7 completely covers the output area of the portable power supply 1, in this process, the first positioning shell 11, the second positioning shell 12 and the third positioning shell 13 inside the protective cover 7 are respectively accurately positioned with the corresponding power plug 4, the inner wall of the second positioning shell 12 is tightly fitted with the three-pin plug, and the third positioning shell 13 wraps around the two-pin plug, preliminary realization of the positioning of the plug, then the movable slide rail 3 is flipped and positioned, hold the end of the movable slide rail 3 away from the fixed slide rail 6, flip 180° upward around the pin shaft connecting the two, make the movable slide rail 3 from the same horizontal line with the fixed slide rail 6, flip to the vertical state perpendicular to the fixed slide rail 6, after flipping in place, the second elastic buckle 26 on the upper surface of the fixed slide rail 6 is aligned with the second buckle seat 27 on the upper surface of the movable slide rail 3, the second elastic buckle 26 is elastically deformed and clamped into the internal groove of the second buckle seat 27, realizing the flip positioning of the movable slide rail 3, at this time the locking module is used to accurately position the protective cover 7, push the extrusion plate 21 on the movable slide rail 3, drive the moving block 22 to slide along the moving groove 38 towards the fixed slide rail 6, the bearing 24 at the end of the extension column 23 is embedded in the arc-shaped pressing groove 31 of the locking plug plate 37 and slides along the groove surface, using the height increasing structure of the arc-shaped pressing groove 31 from bottom to top, drive the locking plug plate 37 to move downward against the elastic force of the first return spring 29, its horizontal segment is pressed tightly on the upper surface of the slider 10, realizing the preliminary limiting of the protective cover 7;Continue to push the extrusion plate 21, the inclined surface of the extrusion plate 21 is in contact with the inclined surface of the baffle 35 in the reset slot 30 and pushes the baffle 35 to move upward, when the extrusion plate 21 moves to the designated position, the clamping plate 39 is embedded in the clamping slot 36 of the baffle 35, at the same time, the first elastic buckle 20 is clamped with the first clamping seat 25, forming secondary locking, completely fixing the position of the protective cover 7, at this time, the sealing strip 9 on the front of the connecting frame 2 is extruded and deformed by the edge of the protective cover 7, filling the gap between the two to form the first sealing structure, the connecting frame 2 and the semicircular sealing sleeve 8 on the bottom of the protective cover 7 are spliced with each other, forming full-wrapped sealing for the wires of the power plug 4, cooperating with the positioning sealing module to realize full-dimension protection, in the positioning sealing module, the fixed pressing plate 19 in the third positioning shell 13 forms bidirectional clamping with the movable pressing plate 15, the movable pressing plate 15 is pressed tightly to the two-pin plug under the continuous elastic force of the damping spring 17, the antiskid pad 18 on the surface increases the frictional resistance, effectively preventing the plug from loosening and shifting in the outdoor dynamic scene, ensuring the stability of the contact resistance and avoiding the influence of power supply voltage fluctuation on the exploration data collection accuracy, when it is necessary to replace the plug or maintain the equipment, press the first elastic buckle 20 to make it separate from the first clamping seat 25, pull the extrusion plate 21 in the opposite direction, the clamping plate 39 separates from the clamping slot 36, the baffle 35 is reset under the pulling force of the second reset spring 34, the locking plate 37 is reset upward under the elastic force of the first reset spring 29, the limiting of the sliding block 10 is released, press the second elastic buckle 26 to separate from the second clamping seat 27, horizontally flip the movable sliding rail 3 to the same horizontal line as the fixed sliding rail 6, and then pull the protective cover 7 along the track out of the auxiliary handle 5, so that the plug replacement or maintenance operation can be performed.

[0036] It should be noted that, in the description of the present application, the terms indicating the direction or positional relationship such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should also be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will all fall within the protection scope of the present application.

Claims

1. A portable power supply for geophysical prospecting apparatus comprising a portable power supply (1) and a plurality of power supply plugs (4), characterised in that: The surface of the portable power supply (1) is connected with a connecting frame (2) outside the output end, the two sides of the connecting frame (2) are connected with a plurality of symmetrical fixed slide rails (6), the inside of each fixed slide rail (6) is slidably connected with a sliding block (10), the surface of a plurality of sliding blocks (10) is commonly fixedly connected with a protective cover (7), the inside of the protective cover (7) is provided with a positioning and sealing module, the end of the fixed slide rail (6) away from the portable power supply (1) is rotatably connected with a movable slide rail (3), the outside of the protective cover (7) is provided with a locking module, and the fixed slide rail (6) limits the protective cover (7) through the locking module.

2. A portable power supply for a geophysical survey instrument according to claim 1, characterized in that: The insertion end of each power plug (4) is inserted into the jack of the portable power supply (1), a plurality of power plugs (4) include two two-angle plugs and a triangular plug, and the surface of the fixed slide rail (6) is in contact with the surface of the folded movable slide rail (3).

3. A portable power supply for a geophysical prospecting instrument according to claim 1, characterized in that: The positioning and sealing module includes two first positioning shells (11) and a second positioning shell (12), the outer surfaces of the two first positioning shells (11) and the second positioning shell (12) are connected with the inner wall of the protective cover (7), the inner wall of each first positioning shell (11) is connected with a third positioning shell (13), each third positioning shell (13) corresponds to a two-pin plug, the second positioning shell (12) corresponds to a triangular plug, the inside of each second positioning shell (12) is provided with a limiting assembly, the inside of the second positioning shell (12) is clamped with the triangular plug, the inner wall of the second positioning shell (12) is in contact with the surface of the triangular plug, the inside of each second positioning shell (12) is in contact with the power cord root of the two-pin plug, and the end of the power plug (4) away from the portable power supply (1) penetrates through the wire slot in the bottom of the third positioning shell (13), the wire slot in the bottom of the first positioning shell (11) and the wire slot in the bottom of the protective cover (7) and extends to the outside of the protective cover (7).

4. A portable power supply for a geophysical survey instrument according to claim 3, characterized in that: The limiting assembly includes two symmetrical bases (14) connected to the inner wall of each third positioning shell (13) and a fixed pressing plate (19) connected to the inner wall of each third positioning shell (13) and parallel to the base (14), the surface of each fixed pressing plate (19) is in contact with the surface of the two-pin plug corresponding to the power plug (4), the top end of each base (14) near the side of the jack of the portable power supply (1) is movably hinged with a movable pressing plate (15), the bottom end of each base (14) is commonly fixedly connected with a damping spring (17) with the bottom surface of the movable pressing plate (15), the surface of each movable pressing plate (15) is fixedly connected with a plurality of anti-skid pads (18), and each anti-skid pad (18) is in contact with the surface of the two-pin plug corresponding to the power plug (4).

5. A portable power supply for a geophysical prospecting instrument according to claim 1, characterized in that: The front surface of the connecting frame (2) is connected with a sealing strip (9), the surface of the sealing strip (9) is in contact with the outer surface of the protective cover (7), and the inside of the connecting frame (2) is clamped with the outer surface of the protective cover (7).

6. A portable power supply for a geophysical prospecting instrument according to claim 1, characterized in that: The surface of the connecting frame (2) and the bottom surface of the protective cover (7) are fixedly connected with half-round sealing sleeves (8) corresponding to the wires of the power plug (4), the inside of every two half-round sealing sleeves (8) is clamped with the outer surface of the wires of the power plug (4), and every two half-round sealing sleeves (8) form a complete sealing sleeve.

7. A portable power supply for a geophysical prospecting instrument according to claim 1, characterized in that: The locking module comprises locking inserts (37) on one side of each sliding block (10), each locking insert (37) is located inside the fixed sliding rail (6) socket in the initial state, the shape of each locking insert (37) is inverted L-shaped, the surface of each fixed sliding rail (6) on one side of the socket is fixedly connected with two limiting columns (28), the outer side of each limiting column (28) is sleeved with a first reset spring (29), one side of each locking insert (37) close to the movable sliding rail (3) is provided with an arc-shaped pressing groove (31) with gradually increasing height from bottom to top, one side of each locking insert (37) close to the movable sliding rail (3) is provided with a reset groove (30) located on one side of the top end of the arc-shaped pressing groove (31), the inner wall of each reset groove (30) is movably hinged with a baffle (35) in the middle, the surface of each baffle (35) is fixedly connected with a first triangular assembly plate (32), the inner wall of each reset groove (30) above the baffle (35) is fixedly connected with a second triangular assembly plate (33) parallel to the oblique edge of the first triangular assembly plate (32), the oblique surface of each first triangular assembly plate (32) is fixedly connected with the oblique surface of the second triangular assembly plate (33) together with the second reset spring (34), the upper surface of each movable sliding rail (3) close to the fixed sliding rail (6) is provided with a moving groove (38), the inside of each moving groove (38) is slidably connected with a moving block (22), the upper surface of each moving block (22) is fixedly connected with a pressing plate (21), one side of each pressing plate (21) close to the fixed sliding rail (6) is fixedly connected with an extension column (23), the outer surface of one end of each extension column (23) away from the pressing plate (21) is connected with a bearing (24) matched with the arc-shaped pressing groove (31), one side of the pressing plate (21) is fixedly connected with a first elastic buckle (20), and the upper surface of each movable sliding rail (3) on one side of the moving groove (38) is fixedly connected with a first clamping seat (25).

8. A portable power supply for a geophysical survey instrument according to claim 7, characterized in that: The outer surface of each locking insert (37) is slidably connected with the socket of the fixed sliding rail (6), the bottom surface of the top end of each limiting column (28) is in contact with the surface of the locking insert (37), the two ends of each first reset spring (29) are fixedly connected with the bottom surface of the locking insert (37) and the upper surface of the fixed sliding rail (6), the bearing (24) in the initial state is located on one side of the bottom end of the arc-shaped pressing groove (31), the first elastic buckle (20) on the other side of the moving groove (38) is matched with the first clamping seat (25), and the surface groove of the protective cover (7) is movably hinged with an auxiliary handle (5).

9. A portable power supply for a geophysical prospecting instrument according to claim 7, characterized in that: Each of the baffles (35) is inclined near one side of the extrusion plate (21), each of the baffles (35) is provided with a clamping groove (36) away from one side of the extrusion plate (21), each of the extrusion plates (21) is inclined near one side of the baffle (35), and each of the extrusion plates (21) is fixedly connected with a clamping plate (39) matched with the clamping groove (36) away from one side of the baffle (35).

10. A portable power supply for a geophysical prospecting instrument according to claim 1, characterized in that: The upper surface of each of the fixed sliding rails (6) is fixedly connected with a second elastic buckle (26) on one side of the locking plugboard (37), the upper surface of each of the movable sliding rails (3) is fixedly connected with a second clamping seat (27) matched with the second elastic buckle (26), and the surface of each of the second elastic buckles (26) is clamped with the inner groove of the second clamping seat (27).

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