An adaptive positioning and installing device for internal components of a distribution box

Abstract

The application relates to the technical field of distribution boxes, and discloses a self-adaptive positioning and mounting device for internal components of a distribution box, which comprises a fixed mounting plate fixedly mounted on the inner wall of the box body of the distribution box, a sliding rail, a driving sleeve, mounting ears and a push plate lifting rail are arranged on the fixed mounting plate; a plurality of sliding mounting seats are slidingly mounted on the sliding rail, the sliding mounting seat is provided with a sliding block, a sliding column and a reset push plate; a wedge-shaped driving block is slidingly arranged in the driving sleeve, the wedge-shaped driving block is provided with a slope and a driving block roller at the bottom; an adjusting push plate is slidingly arranged on the push plate lifting rail. The slope of the wedge-shaped driving block is slidingly matched with the sliding column of each sliding mounting seat, all the wedge-shaped driving blocks are synchronously pushed upward by the adjusting push plate by the same distance, the distance between each sliding mounting seat can be proportionally and synchronously expanded or reduced, the consistency of the mounting gap of all the components and the adjusting precision are ensured, and the standardization requirement of the electrical gap in a high-altitude environment is effectively met.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, specifically to an adaptive positioning and installation device for internal components of a distribution box. Background Technology

[0002] Distribution boxes are terminal devices in power systems used to collect, distribute, and control electrical energy. They typically house various electrical components such as circuit breakers, contactors, and relays. Sufficient electrical clearances must be maintained between these components and between these components and grounded metal parts; this clearance is the shortest distance in air between two conductive parts to prevent short circuits or discharge accidents caused by voltage breakdown. The value of the electrical clearance is closely related to the altitude of the equipment installation location. According to relevant standards, altitudes of 2000m and below are considered normal operating conditions, and the electrical clearance is taken according to the benchmark value. When the altitude exceeds 2000m, due to the thin air and reduced air pressure, the air insulation strength decreases significantly, and the electrical clearance must be multiplied by the corresponding altitude correction factor. Many power distribution devices need to be installed in high-altitude areas above 2000m. How to conveniently and reliably adjust the installation spacing of components within the distribution box to meet the electrical clearance requirements of high-altitude areas has become an urgent technical problem to be solved in this field.

[0003] The installation of components inside distribution boxes typically employs a structure combining fixed mounting plates with sliding mounting bases or brackets. While some adjustable-spacing installation solutions exist, they generally share a common drawback: when adjusting the spacing between multiple components, operators must manually loosen the locking mechanism of each sliding mounting base, slide it to the target position, and then relock it. When dozens of components are installed in a distribution box, this method of individual adjustment is not only cumbersome and time-consuming, but also makes it difficult to ensure that the spacing between components strictly meets the proportional scaling requirements of the altitude correction factor. Differences in the manual adjustment precision of different operators can lead to inconsistent spacing, affecting the insulation safety performance of the equipment, resulting in low adjustment efficiency and poor consistency. Summary of the Invention

[0004] To address the shortcomings of existing electrical distribution box component installation spacing in high-altitude environments, as mentioned in the background art, this invention provides an adaptive positioning and installation device for electrical distribution box components, which has the advantage of synchronously and proportionally increasing the spacing, thus solving the technical problems mentioned in the background art.

[0005] This invention provides the following technical solution: an adaptive positioning and installation device for internal components of a distribution box, comprising a fixed mounting plate fixedly installed on the inner wall of the distribution box, the fixed mounting plate being provided with a slide rail, a drive sleeve, mounting ears, and a push plate lifting rail; multiple sliding mounting seats are slidably installed on the slide rail, the sliding mounting seats being provided with a slider, a slide column, a fixing hole, and a reset push plate; a wedge-shaped drive block is slidably installed inside the drive sleeve, the wedge-shaped drive block being provided with an inclined surface and a drive block roller at the bottom; an adjusting push plate is slidably installed on the push plate lifting rail, the adjusting push plate abutting against the drive block roller and having a threaded telescopic rod at the bottom; an altitude adjustment disc is also provided inside the box, the altitude adjustment disc and the threaded telescopic rod being connected by a transmission disc and a transmission belt, the altitude adjustment disc being provided with a positioning lock hole; the mounting ears are connected to the reset push plate by a reset spring.

[0006] Preferably, the slide rail consists of two parallel guide rails, and the cross-section of the guide rails is T-shaped or dovetail-shaped.

[0007] Preferably, the fixing hole is an oblong hole, and the length direction of the oblong hole extends along the width direction of the fixing mounting plate.

[0008] Preferably, the lower half of the wedge-shaped drive block is a long strip-shaped block inserted into the drive sleeve, and the upper half is a wedge-shaped block. The two inclined surfaces of the wedge-shaped block abut against the sliding columns of the sliding mounting seats on both sides.

[0009] Preferably, the drive sleeve has a cylindrical structure and a vertical guide opening inside, and the bottom surface of the fixed mounting plate has a sliding groove along the length direction, and the drive sleeve is slidably connected in the sliding groove.

[0010] Preferably, it also includes an adjustment base fixed inside the housing, the altitude adjustment disc is rotatably mounted on the adjustment base, and the adjustment base is provided with a telescopic pin that engages with the positioning lock hole.

[0011] Preferably, a sliding roller is rotatably fitted onto the lower end of the sliding column, and the sliding roller rolls in cooperation with the inclined surface of the wedge-shaped drive block.

[0012] Preferably, the threaded telescopic rod is vertically arranged, and the adjusting push plate has a rectangular plate structure with its two ends slidably connected to the push plate lifting rails at both ends.

[0013] Preferably, the transmission disc is a synchronous pulley, and the transmission belt is a synchronous toothed belt.

[0014] Preferably, the plurality of sliding mounting seats are arranged at intervals along the length direction of the fixed mounting plate, and the reset push plate is respectively provided on the side of the leftmost and rightmost sliding mounting seats.

[0015] The present invention has the following beneficial effects: 1. This invention uses the inclined surface of the wedge-shaped drive block to slide in conjunction with the sliding column of each sliding mounting seat, and all the wedge-shaped drive blocks are pushed up by the adjusting push plate at the same time to move the same distance. This enables the spacing between each sliding mounting seat to be expanded or reduced in a proportional manner, ensuring the consistency and adjustment accuracy of the installation gap of all components, and effectively meeting the standardization requirements of electrical clearance in high-altitude environments.

[0016] 2. The present invention drives the sliding sleeve to slide in the groove on the bottom surface of the fixed mounting plate, so that the wedge-shaped drive block can adaptively slide horizontally when subjected to the horizontal reaction force of the sliding columns on both sides. This ensures that the wedge-shaped drive block always maintains the correct contact position with each sliding column, effectively avoiding the wedge-shaped drive block deflection and jamming caused by the asymmetry of the number of sliding mounting seats on both sides or the spring force, and ensuring the smoothness and reliability of the adjustment process.

[0017] 3. By connecting the reset spring between the mounting ear and the reset push plate, and compressing and storing energy when the sliding mounting seats move away from each other, the reset spring actively pushes each sliding mounting seat inward to reset by relying on the elastic force of the spring when the adjusting push plate moves down. This allows the device to automatically restore the reference spacing without relying on the wedge-shaped inclined surface to pull back, avoiding lateral damage to the inclined surface and sliding column, and extending the service life of the device.

[0018] 4. The present invention uses a drive block roller set between the bottom of the wedge-shaped drive block and the adjusting push plate, and a sliding roller rotatably sleeved on the lower end of the slide column to roll with the inclined surface. This enables the sliding friction when the adjusting push plate pushes the wedge-shaped drive block to move upward and the wedge-shaped drive block pushes the slide column to move horizontally to be transformed into rolling friction, which greatly reduces the operating resistance and makes the rotation adjustment of the altitude adjustment disc easier and less strenuous. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the sliding mounting base of the present invention; Figure 2 This is a schematic diagram of the adjustment structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the adjustment structure of the present invention.

[0020] In the diagram: 1. Fixed mounting plate; 11. Slide rail; 12. Drive sleeve; 13. Mounting ear; 131. Bolt hole; 14. Push plate lifting rail; 2. Sliding mounting seat; 21. Sliding column; 22. Sliding block; 23. Fixing hole; 24. Reset push plate; 25. Reset spring; 3. Wedge-shaped drive block; 31. Drive block roller; 4. Adjusting push plate; 41. Threaded telescopic rod; 42. Transmission belt; 5. Altitude adjustment disc; 51. Transmission disc; 52. Positioning lock hole; 6. Housing. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, the present invention provides an adaptive adjustment device for the installation spacing of internal components of a distribution box, including a fixed mounting plate 1, a sliding mounting base 2, a wedge-shaped drive block 3, an adjustment push plate 4, an altitude adjustment disc 5, and a box body 6 of the distribution box.

[0023] The mounting plate 1 has a rectangular plate structure and is made of engineering plastic with good insulation properties or metal material that has been treated with insulation. The mounting plate 1 is used to fix and install itself on the inner wall of the distribution box 6, and can be fixed to the rear wall or side wall of the box 6 by screws or rivets. The upper surface of the mounting plate 1 is the installation working surface, which is used to support and guide the sliding of each sliding mounting seat 2.

[0024] A slide rail 11 is fixedly mounted on the upper surface of the mounting plate 1 along its length. The slide rail 11 consists of two parallel guide rails, located on the front and rear sides of the upper surface of the mounting plate 1, respectively. The cross-section of the guide rails is T-shaped or dovetail-shaped to provide stable sliding guidance. The slide rail 11 can be fixed to the upper surface of the mounting plate 1 with screws, or it can be integrally formed with the mounting plate 1, such as by injection molding or casting. An adjustment slot is formed between the two slide rails 11 along the length of the mounting plate 1, extending through the upper and lower surfaces of the mounting plate 1. The upper half of the wedge-shaped drive block 3 extends upward through this adjustment slot to the upper surface of the mounting plate 1, inserting into the gap between each sliding mounting seat 2 to push each sliding column 21.

[0025] The bottom surface of the fixed mounting plate 1 is fixedly connected with a sliding groove along its length, and multiple driving sleeves 12 are movably connected through the sliding groove. Specifically, the bottom surface of the fixed mounting plate 1 has a T-shaped groove or dovetail groove as a sliding groove along its length. The top of the driving sleeve 12 has a sliding protrusion adapted to the shape of the sliding groove. The driving sleeve 12 is slidably installed in the sliding groove through the sliding protrusion, so that it can slide freely horizontally along the length of the fixed mounting plate 1. The driving sleeve 12 is located directly below the adjustment slot on the fixed mounting plate 1. The driving sleeve 12 has a cylindrical structure, and its interior has a vertical guide opening with a rectangular or circular cross-section. The lower half of the wedge-shaped driving block 3 is slidably inserted into the guide opening of the driving sleeve 12 and can slide up and down vertically. Multiple ball bearings can also be embedded in the upper contact surface of the driving sleeve 12 to reduce the sliding friction between the wedge-shaped driving block 3 and the bottom surface of the fixed mounting plate 1 when it moves upward.

[0026] Mounting ears 13 are fixedly provided at both ends of the fixed mounting plate 1. The mounting ears 13 extend outward from the left and right ends of the fixed mounting plate 1, and bolt holes 131 are provided on the mounting ears 13 for fixing the fixed mounting plate 1 to the inner wall of the housing 6. The inner surface of each mounting ear 13 is a spring mounting surface for connecting one end of the return spring 25.

[0027] The bottom surface of the fixed mounting plate 1 is also fixedly provided with push plate lifting rails 14 at both ends. The push plate lifting rails 14 are two vertically downward extending guide rails, which are fixedly installed at the left and right ends of the bottom surface of the fixed mounting plate 1, respectively. The inner side of the push plate lifting rails 14 is provided with a vertical guide groove for sliding the adjusting push plate 4, so that the adjusting push plate 4 can only slide up and down in the vertical direction and cannot be offset horizontally.

[0028] Multiple sliding mounting bases 2 are provided, and the multiple sliding mounting bases 2 are arranged at intervals along the length of the fixed mounting plate 1. Each sliding mounting base 2 is used to fix and install a component inside the distribution box, such as a circuit breaker, contactor, relay, etc. The sliding mounting base 2 has an "L"-shaped plate structure, with its vertical part being the component mounting surface and its horizontal part being the sliding connection surface.

[0029] Each sliding mounting base 2 has a slider 22 fixedly mounted on its horizontal bottom portion. The slider 22 is adapted to the shape of the slide rail 11—if the slide rail 11 is a T-shaped rail, then the slider 22 is a corresponding T-slot slider; if the slide rail 11 is a dovetail rail, then the slider 22 is a corresponding dovetail slider. The slider 22 is slidably connected to the slide rail 11, allowing the sliding mounting base 2 to slide freely along the length of the fixed mounting plate 1. The clearance between the slider 22 and the slide rail 11 should be controlled between 0.1mm and 0.3mm to ensure smooth sliding without wobbling.

[0030] Each sliding mounting base 2 has a mounting hole 23 on its upper surface, specifically the upper surface of the horizontal portion, for mounting components. The mounting hole 23 is an oblong hole, extending along the width of the mounting plate 1. Components are fixed to the sliding mounting base 2 using screws passing through the mounting holes 23. The oblong hole design allows for fine-tuning of the component's position on the sliding mounting base 2 along the width of the mounting plate 1 to accommodate differences in mounting hole positions for components of different brands and models. It also allows for fine-tuning of the component's position in the front-to-back direction, ensuring the component is centered on the sliding mounting base 2.

[0031] Each sliding mounting base 2 has a sliding column 21 fixedly installed on both sides of its bottom. The sliding column 21 extends vertically downward from the bottom surface of the sliding mounting base 2. The sliding column 21 is cylindrical, and its lower end is rotatably fitted with a sliding roller, or directly forms a smooth cylindrical surface to reduce sliding friction with the inclined surface of the wedge-shaped drive block 3. In this embodiment, the lower end of the sliding column 21 is preferably fitted with a sliding roller to achieve rolling engagement and further reduce friction. The sliding column 21 extends downward through the adjustment slot opened on the fixed mounting plate 1 to the bottom of the fixed mounting plate 1, and its lower end abuts against the inclined surface of the wedge-shaped drive block 3.

[0032] A reset push plate 24 is movably mounted on the outer surface of the leftmost and rightmost sliding mounting seats 2. Specifically, one end of the reset push plate 24 is movably connected to the outer surface of the sliding mounting seat 2 via a pin or hinge, and the reset push plate 24 can swing around the connection point within a certain angle range. A reset spring 25 is fixedly mounted on the outer side of the reset push plate 24, and the other end of the reset spring 25 is fixedly connected to the inner surface of the mounting ear 13 on the same side. By pushing the leftmost and rightmost sliding mounting seats 2 inward through the reset springs 25 on both sides and the reset push plate 24, all sliding mounting seats 2 are driven to maintain a tendency to move closer to each other.

[0033] Please see Figure 2 Multiple wedge-shaped drive blocks 3 are provided, and the gaps between the multiple wedge-shaped drive blocks 3 and the multiple sliding mounting seats 2 are set one-to-one. The lower half of each wedge-shaped drive block 3 is a long strip-shaped block, which is slidably inserted into the guide opening of the corresponding drive sleeve 12 and can slide up and down in the vertical direction. The upper half of the wedge-shaped drive block 3 is a wedge-shaped block with symmetrical inclined surfaces on its left and right sides. The inclined surfaces extend downward from the top center of the wedge-shaped drive block 3 to both sides. The two inclined surfaces contact the sliding columns 21 on the two adjacent sliding mounting seats 2 respectively - that is, the left inclined surface of one wedge-shaped drive block 3 abuts against the right sliding column 21 of the left sliding mounting seat 2, and the right inclined surface abuts against the left sliding column 21 of the right sliding mounting seat 2. When the wedge-shaped drive block 3 slides upward along the guide opening of the drive sleeve 12, its two inclined surfaces push the sliding columns 21 on the left and right sides respectively, thereby pushing the sliding mounting seats 2 on the left and right sides to move away from each other along the slide rail 11.

[0034] As an alternative implementation, the upper half of the wedge-shaped drive block 3 may not have an inclined surface, but instead has an inclined groove. The sliding column 21 is inserted into the inclined groove and slides along it. When the wedge-shaped drive block 3 moves up and down, the sliding column 21 slides along the inclined groove, which can also convert vertical motion into horizontal motion. Its working principle is similar to that of the inclined surface, and both are within the protection scope of this invention.

[0035] Each wedge-shaped drive block 3 has a drive block roller 31 fixedly mounted on its bottom. The drive block roller 31 is rotatably mounted at the center of the bottom surface of the wedge-shaped drive block 3 and is used to contact and engage with the upper surface of the adjusting push plate 4. When the adjusting push plate 4 is pushed upward, the drive block roller 31 rolls on the upper surface of the adjusting push plate 4, converting sliding friction into rolling friction, which significantly reduces the thrust required for the adjusting push plate 4 to push the wedge-shaped drive block 3.

[0036] When the wedge-shaped drive block 3 moves upward along the drive sleeve 12, the wedge-shaped drive block 3 will be subjected to a horizontal reaction force from the sliding pins 21 on both sides as the sliding pins 21 push the inclined surfaces of the wedge-shaped drive block 3 to the left and right respectively. If the number of sliding mounting seats 2 and the spring force on both sides are asymmetrical, this reaction force may cause the wedge-shaped drive block 3 to tend to move horizontally. To address this, the drive sleeve 12 is slidably connected to the groove on the bottom surface of the fixed mounting plate 1, allowing the drive sleeve 12 and the wedge-shaped drive block 3 to slide freely in the horizontal direction, thereby adaptively following the horizontal displacement of each sliding pin 21 and avoiding jamming due to horizontal misalignment between the wedge-shaped drive block 3 and the sliding pins 21. At the same time, the guide opening of the drive sleeve 12 is vertical, constraining the wedge-shaped drive block 3 to slide only vertically and not to deflect relative to the drive sleeve 12, ensuring that the wedge-shaped drive block 3 always maintains a vertical posture and avoiding inconsistent displacement of each sliding mounting seat 2 due to deflection.

[0037] Please see Figure 2-3 The two ends of the adjusting push plate 4 are slidably connected to the push plate lifting rails 14 at both ends of the bottom surface of the fixed mounting plate 1. Specifically, the adjusting push plate 4 has a rectangular plate structure, and its left and right ends are respectively provided with sliding protrusions. The sliding protrusions are embedded in the guide grooves of the push plate lifting rails 14, so that the adjusting push plate 4 can only slide up and down in the vertical direction, and cannot move horizontally or deflect.

[0038] The upper surface of the adjusting push plate 4 is a flat pushing surface that contacts and engages with the drive block rollers 31 at the bottom of each wedge-shaped drive block 3. When the adjusting push plate 4 is pushed upward, the adjusting push plate 4 moves upward as a whole, simultaneously pushing all the wedge-shaped drive blocks 3 to slide vertically upward along the guide opening of the drive sleeve 12. The inclined surfaces of each wedge-shaped drive block 3 move upward synchronously, thereby simultaneously pushing each sliding mounting seat 2 away from each other along the slide rail 11. Since the inclined surface angles of all the wedge-shaped drive blocks 3 are consistent, and the adjusting push plate 4 simultaneously pushes all the wedge-shaped drive blocks 3 upward by the same distance, the spacing increment between each sliding mounting seat 2 is exactly the same, achieving a proportional synchronous expansion.

[0039] At least one threaded telescopic rod 41 is fixedly installed at the bottom of the adjusting push plate 4. In this embodiment, two threaded telescopic rods 41 are preferably provided, respectively located at the left and right ends of the bottom surface of the adjusting push plate 4, to ensure that the adjusting push plate 4 is subjected to uniform force and rises and falls smoothly. The threaded telescopic rod 41 is vertically arranged, with its top end fixedly connected to the bottom surface of the adjusting push plate 4 and its bottom end fixedly connected to a transmission disc 51. The threaded telescopic rod 41 is a screw and nut mechanism, with its screw part rotatable and its nut part fixedly connected to the adjusting push plate 4. When the screw rotates, the nut moves up and down along the screw axis, thereby driving the adjusting push plate 4 to move up and down.

[0040] An adjustable base is fixedly installed inside the housing 6. The adjustable base is fixedly installed on the bottom or side wall of the inner wall of the housing 6. An altitude adjustment disc 5 is movably installed on the adjustable base. The altitude adjustment disc 5 has a disc-shaped structure and is rotatably installed on the adjustable base via a pivot.

[0041] Please see Figure 2 A transmission disc 51 is fixedly connected to the top of the altitude adjustment disc 5. A transmission disc 51 is also fixedly connected to the bottom end of the threaded telescopic rod 41 at the bottom of the adjustment push plate 4. The two transmission discs 51 are connected by a transmission belt 42. Specifically, the transmission disc 51 at the top of the altitude adjustment disc 5 is the driving wheel, and the transmission disc 51 at the bottom of the threaded telescopic rod 41 is the driven wheel. The transmission belt 42 wraps around the two transmission discs 51. In this embodiment, the transmission disc 51 is preferably a synchronous pulley, and the transmission belt 42 is preferably a synchronous toothed belt to achieve precise synchronous transmission, ensuring that the rotation angle of the altitude adjustment disc 5 corresponds precisely to the rotation angle of the threaded telescopic rod 41, and avoiding slippage that could lead to adjustment errors.

[0042] The altitude adjustment disc 5 has multiple positioning locking holes 52. These holes are spaced apart circumferentially along the disc, each corresponding to a different altitude setting. A telescopic pin is fixedly installed on the adjustment base, and this pin is compatible with the positioning locking holes 52. When the altitude adjustment disc 5 rotates to a certain setting, the pin of the telescopic pin extends and inserts into the corresponding positioning locking hole 52, locking the disc 5 in the current setting and preventing accidental rotation due to vibration or other reasons. The telescopic pin can be a spring-return pin or an electromagnetically driven pin.

[0043] The working principle of the method of using this invention is as follows: During operation, the operator rotates the altitude adjustment disc 5. The transmission disc 51 at the top of the altitude adjustment disc 5 drives the transmission disc 51 at the bottom of the threaded telescopic rod 41 to rotate via the transmission belt 42. After the screw of the threaded telescopic rod 41 rotates, its nut drives the adjusting push plate 4 to move vertically upward or downward along the push plate lifting rail 14. When the adjusting push plate 4 moves upward, it pushes all the wedge-shaped drive blocks 3 to move vertically upward synchronously through the drive block roller 31. The inclined surface of the wedge-shaped drive block 3 pushes each sliding column 21 to move horizontally along the length direction of the fixed mounting plate 1, thereby driving each sliding mounting seat 2 to slide outward synchronously along the slide rail 11, increasing the distance between adjacent sliding mounting seats 2. When the altitude adjustment disc 5 is rotated to the desired position, the telescopic pin is inserted into the corresponding positioning lock hole 52 to lock the entire adjustment mechanism.

[0044] Under normal operating conditions at an altitude ≤2000m, the wedge-shaped drive block 3 is in its lowest position. At this time, the adjusting push plate 4 is in its lowest position, and each sliding mounting seat 2 maintains its reference distance under the elastic force of the return spring 25; that is, the distance between each sliding mounting seat 2 is equal to the reference distance value multiplied by a multiplication factor of 1.00. In this state, the electrical clearance between the components inside the distribution box meets the requirements of GB / T16935.1 / IEC60664-1 standards for low-altitude environments.

[0045] When a distribution box needs to be installed in an area with an altitude of over 2000m, the thinner air and lower air pressure due to the increased altitude significantly reduce the air insulation strength. According to the GB / T16935.1 / IEC60664-1 standard, electrical clearances must be multiplied by a corresponding multiplication factor when the altitude exceeds 2000m. The operator should rotate the altitude adjustment dial 5 to the corresponding setting based on the actual altitude of the installation location.

[0046] Taking an altitude of 3000m as an example: The operator rotates the altitude adjustment disc 5 to the corresponding position. The altitude adjustment disc 5 drives the threaded telescopic rod 41 to rotate through the transmission disc 51 and the transmission belt 42. The threaded telescopic rod 41 drives the adjustment push plate 4 to slide vertically upward a predetermined distance along the push plate lifting rail 14. The adjustment push plate 4 pushes each wedge-shaped drive block 3 to slide upward synchronously a predetermined distance through the drive block roller 31. The inclined surface of each wedge-shaped drive block 3 pushes each sliding column 21 to move outward along the length direction of the fixed mounting plate 1, thereby driving each sliding mounting seat 2 to slide outward synchronously. The distance between each sliding mounting seat 2 is proportionally increased from the reference distance value to the reference distance value multiplied by a multiplication factor of 1.14. When the wedge-shaped drive block 3 slides to the corresponding position, the telescopic pin on the adjustment base engages with the corresponding positioning lock hole 52 on the altitude adjustment disc 5, locking the altitude adjustment disc 5 in that position to prevent displacement due to vibration or other reasons.

[0047] Similarly, when the distribution box is installed at an altitude of 4000m, the operator rotates the altitude adjustment dial 5 to the next setting, increasing the distance between each sliding mounting seat 2 to the base distance value multiplied by a multiplication factor of 1.29; when installed at an altitude of 5000m, the distance is increased to the base distance value multiplied by a multiplication factor of 1.48. For altitudes between the above settings, linear interpolation can be used to determine the multiplication factor; the operator simply rotates the altitude adjustment dial 5 to the corresponding interpolation setting.

[0048] When the distribution box needs to be moved from a high-altitude area to a low-altitude area, the operator rotates the altitude adjustment dial 5 in the opposite direction, causing the adjustment push plate 4 to move downwards. At this time, the compressed return spring 25 releases its elastic force, pushing the leftmost and rightmost sliding mounting seats 2 inwards through the return push plate 24. The distance between each sliding mounting seat 2 decreases synchronously, and at the same time, each sliding column 21 pushes the inclined surface of each wedge-shaped drive block 3, causing the wedge-shaped drive block 3 to slide downwards and reset in the drive loop 12. Since the adjustment push plate 4 has moved downwards, the wedge-shaped drive block 3 can slide freely downwards until each sliding mounting seat 2 returns to the reference distance. In this process, the spring force is the driving force for active reset, rather than relying on the inclined surface of the wedge-shaped drive block 3 to "pull back" the sliding mounting seats 2, thus avoiding lateral damage to the inclined surface and sliding column 21.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive positioning and installation device for internal components of a distribution box, comprising a fixed mounting plate (1) fixedly installed on the inner wall of the box body (6) of the distribution box, characterized in that: The fixed mounting plate (1) is provided with a slide rail (11), a drive sleeve (12), a mounting ear (13), and a push plate lifting rail (14); multiple sliding mounting seats (2) are slidably mounted on the slide rail (11), and each sliding mounting seat (2) is provided with a slider (22), a sliding column (21), a fixing hole (23), and a reset push plate (24); a wedge-shaped drive block (3) is slidably provided inside the drive sleeve (12), and the wedge-shaped drive block (3) is provided with a drive block roller (31) on the inclined surface and at the bottom; the push plate lifting rail is provided with a slide rail (11), a drive sleeve (12), a mounting ear (13), a mounting ear (14), a mounting ear (15), a mounting ear (16), a mounting ear (17), a mounting ear (18), a mounting ear (19), a mounting ear (10), a mounting ear (11), a mounting ear (12), a mounting ear (13), a mounting ear (14), a mounting ear (15), a mounting ear (16), a mounting ear (17), a mounting ear (18), a mounting ear (19), a mounting ear (12 ... An adjusting push plate (4) is slidably provided on the rail (14). The adjusting push plate (4) abuts against the drive block roller (31) and has a threaded telescopic rod (41) at the bottom. An altitude adjusting disc (5) is also provided inside the housing (6). The altitude adjusting disc (5) and the threaded telescopic rod (41) are connected by a transmission disc (51) and a transmission belt (42). The altitude adjusting disc (5) has a positioning lock hole (52). The mounting ear (13) is connected to the reset push plate (24) by a reset spring (25).

2. The adaptive positioning and installation device for internal components of a distribution box according to claim 1, characterized in that: The slide rail (11) consists of two parallel guide rails, the cross-section of which is T-shaped or dovetail-shaped.

3. The adaptive positioning and installation device for internal components of a distribution box according to claim 1, characterized in that: The fixing hole (23) is an oblong hole, and the length of the oblong hole extends along the width of the fixing mounting plate (1).

4. The adaptive positioning and installation device for internal components of a distribution box according to claim 1, characterized in that: The lower half of the wedge-shaped drive block (3) is a long strip-shaped block inserted into the drive sleeve (12), and its upper half is a wedge-shaped block. The two inclined surfaces of the wedge-shaped block abut against the sliding columns (21) of the sliding mounting seats (2) on both sides.

5. The adaptive positioning and installation device for internal components of a distribution box according to claim 1, characterized in that: The drive sleeve (12) is a cylindrical structure with a vertical guide opening inside. The bottom surface of the fixed mounting plate (1) has a sliding groove along the length direction, and the drive sleeve (12) is slidably connected in the sliding groove.

6. A self-adaptive positioning and installation device for internal components of a distribution box according to any one of claims 1 to 5, characterized in that: It also includes an adjustment base fixed inside the housing (6), the altitude adjustment disc (5) is rotatably mounted on the adjustment base, and the adjustment base is provided with a telescopic pin that engages with the positioning lock hole (52).

7. The adaptive positioning and installation device for internal components of a distribution box according to claim 6, characterized in that: The lower end of the slide column (21) is rotatably fitted with a sliding roller, which rolls in cooperation with the inclined surface of the wedge-shaped drive block (3).

8. The adaptive positioning and installation device for internal components of a distribution box according to claim 1, characterized in that: The threaded telescopic rod (41) is vertically arranged, and the adjusting push plate (4) has a rectangular plate structure and its two ends are slidably connected to the push plate lifting rails (14) at both ends.

9. The adaptive positioning and installation device for internal components of a distribution box according to claim 1, characterized in that: The transmission disc (51) is a synchronous pulley, and the transmission belt (42) is a synchronous toothed belt.

10. A distribution box, comprising a box body (6) and a component mounting spacing adaptive adjustment device disposed within the box body (6), characterized in that: Multiple sliding mounting seats (2) are arranged at intervals along the length direction of the fixed mounting plate (1), and the reset push plate (24) is respectively provided on the side of the leftmost and rightmost sliding mounting seats (2).

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