A portable testing instrument stand

Abstract

This application relates to the technical field of fixing testing equipment, and in particular to a portable testing instrument support, comprising: a bottom support frame, placed on the ground for supporting the testing instrument; a connecting seat, disposed on the bottom support frame; a mounting frame with a first mounting hole in the middle; a connecting mechanism disposed at the first mounting hole of the mounting frame and detachably connected to the connecting seat; a rotating frame, hinged at one end to the mounting frame for placing the testing instrument; a telescopic mechanism disposed on the mounting frame and connected to the rotating frame for fixing the position of the rotating frame; and a limiting frame disposed on the rotating frame for limiting the position of the testing instrument. This application improves testing efficiency and operational comfort, while multi-angle adjustment facilitates observation from multiple angles by testing personnel, adapts to different groups of people, improves applicability, reduces the possibility of frequent bending over for observation, and improves testing comfort.

Description

Technical Field

[0001] This application relates to the technical field of fixing test equipment, and in particular to a portable tester equipment bracket. Background Technology

[0002] Relay protection testers are critical equipment in power systems for both new installations and routine inspections and maintenance. They are typically large and heavy, and although there has been a trend towards lighter and smaller designs in recent years, they still far exceed the weight of conventional handheld devices. In testing sites, such as substations or distribution rooms, there is often a lack of dedicated operating tables or fixed supports to house the testers, leading to unstable placement, inconvenient operation, and even affecting testing accuracy and safety. Therefore, providing a portable, quickly assembled tester stand that can adapt to different operating environments has become a pressing technical problem in this field.

[0003] Currently, common methods for placing testing instruments in existing technologies include placing them directly on the ground, building temporary platforms, or using simple supports. For example, some field operators use tripods with flat plate structures for support, but these structures are usually limited in function and cannot achieve flexible adjustment of the testing instrument's angle. Other solutions use fixed supports, which can provide a certain degree of stability, but are cumbersome to assemble, inconvenient to carry, and lack quick locking and angle locking mechanisms, making it difficult to meet the needs of efficient on-site testing.

[0004] However, the aforementioned existing technologies have obvious drawbacks: First, the simple brackets lack an effective angle adjustment mechanism, resulting in a fixed viewing angle of the tester, requiring operators to frequently adjust their body posture, which can easily lead to fatigue; second, the assembly and disassembly process of existing brackets is complex and time-consuming, which is not conducive to rapid on-site deployment; in addition, most brackets do not integrate quick locking and reset functions, which can easily lead to loosening or accidental displacement during use, affecting the safety and reliability of testing. Summary of the Invention

[0005] This application provides a portable testing instrument bracket, which can at least partially solve the above-mentioned technical problems.

[0006] This application provides a portable testing instrument bracket, which adopts the following technical solution:

[0007] A portable testing instrument stand includes:

[0008] The bottom support frame, placed on the ground, is used to support the testing equipment;

[0009] The connecting seat is mounted on the bottom support frame;

[0010] The mounting bracket has a first mounting hole in the middle.

[0011] A connecting mechanism is provided at the first mounting hole of the mounting bracket and is detachably connected to the connecting seat;

[0012] A rotating frame, with one end hinged to the mounting frame, is used to hold the testing equipment;

[0013] A telescopic mechanism, mounted on the mounting frame and connected to the rotating frame, is used to fix the position of the rotating frame;

[0014] A limiting frame, mounted on the rotating frame, is used to limit the movement of the testing equipment.

[0015] By adopting the above technical solution, the bottom support frame is placed on the ground to provide stable support; the connecting seat is set on the bottom support frame; the mounting frame is connected to the connecting mechanism through the mounting hole in its middle; the connecting mechanism and the connecting seat are detachably connected to achieve quick assembly; one end of the rotating frame is hinged to the mounting frame for placing the testing equipment; the telescopic mechanism is set on the mounting frame and connected to the rotating frame for adjusting and fixing the angle of the rotating frame; the limiting frame is set on the rotating frame to prevent the testing equipment from slipping; an overall structural frame is provided, realizing portable support and rapid deployment of the testing equipment; the bottom support frame ensures stability, the connecting mechanism enables quick assembly and disassembly, the rotating frame allows angle adjustment, the telescopic mechanism provides an angle locking function, and the limiting frame enhances equipment safety; it solves the problems of cumbersome bracket assembly, fixed angles, and easy equipment displacement in the prior art, improving testing efficiency and operational comfort; at the same time, multi-angle adjustment facilitates multi-angle observation by testing personnel, adapts to different groups of people, improves applicability, reduces the possibility of frequent bending over for observation, reduces fatigue index, and improves testing comfort.

[0016] Optionally, the telescopic mechanism includes a fixed rod, a sliding rod, and a locking assembly. One end of the fixed rod is hinged to the mounting frame, one end of the sliding rod is slidably connected to one end of the fixed rod, and the other end of the sliding rod is rotatably connected to the rotating frame. The locking assembly is disposed on the fixed rod and is used to lock the sliding rod.

[0017] By adopting the above technical solution, the telescopic mechanism includes a fixed rod, a sliding rod, and a locking assembly. One end of the fixed rod is hinged to the mounting frame, one end of the sliding rod is slidably connected to the fixed rod, and the other end is rotatably connected to the rotating frame. The angle of the rotating frame is adjusted by pushing or pulling the sliding rod. The locking assembly is used to lock the position of the sliding rod, thereby fixing the rotating frame. The telescopic mechanism is refined, realizing continuous adjustment and reliable locking of the rotating frame angle. The sliding connection allows for fine-tuning of the angle, and the locking assembly ensures that the angle is fixed and prevents accidental movement. The flexibility and stability of angle adjustment are enhanced, solving the problem of inconvenient angle adjustment of existing supports.

[0018] Optionally, the locking assembly includes a pawl, a rack, and a tension spring. The rack is disposed on the sliding rod, and the pawl is rotatably disposed on the fixed rod. The pawl engages with the rack and is inclined toward the movable end of the rotating frame. The tension spring is disposed on the mounting frame and connected to the pawl, and is used to pull the pawl to rotate toward the mounting frame.

[0019] By adopting the above technical solution, the locking assembly includes a pawl, a rack, and a tension spring. The rack is mounted on the sliding rod, and the pawl is rotatably mounted on the fixed rod and meshes with the rack, with the pawl tilted towards the movable end of the rotating frame. The tension spring connects the pawl and the mounting frame, pulling the pawl to rotate towards the mounting frame. When the sliding rod extends, the rack pushes the pawl over the tooth groove, achieving one-way locking. When reset is required, external force overcomes the tension spring's pull, causing the pawl to disengage from the rack. This provides a one-way locking mechanism, ensuring that the rotating frame can only adjust its angle in one direction, preventing retraction. The tension spring provides automatic reset force, enhancing reliability. This achieves a self-locking function for angle adjustment, solving the problem of existing brackets lacking a locking mechanism, making operation safer and less strenuous.

[0020] Optionally, the fixing rod is provided with a first reset groove and a second reset groove, which are located at both ends of the rack, respectively. The first reset groove is close to the mounting bracket. When the pawl enters the first reset groove, the pawl separates from the rack, facilitating the rack to slide towards the mounting bracket. A reset block is provided on the side of the second reset groove close to the rack. When the pawl enters the second reset groove, the pawl separates from the rack. When the rack moves away from the mounting bracket, the reset block pushes the pawl to tilt towards the movable end of the rotating frame.

[0021] By adopting the above technical solution, a first reset groove and a second reset groove are opened on the fixed rod, located at both ends of the rack respectively; the first reset groove is close to the mounting bracket, and when the pawl enters, it separates from the rack, allowing the rack to slide (reset) towards the mounting bracket; a reset block is set at one end of the second reset groove near the rack, and when the pawl enters, the reset block pushes the pawl to tilt towards the moving end of the rotating bracket, making it easy to re-engage when the rack moves away from the mounting bracket; the reset process of the rotating bracket is simplified, the first reset groove facilitates quick reset, and the second reset groove ensures that the pawl is repositioned and avoids jamming; a complete adjustment-locking-reset cycle is provided, improving operating efficiency and solving the problem of cumbersome reset of existing brackets; the possibility of manual intervention in adjustment is reduced, and adjustment efficiency is improved.

[0022] Optionally, the connecting mechanism includes a base, a quick-lock sleeve, a locking seat, and a locking rod. The base is disposed on the bottom support frame, and the quick-lock sleeve is disposed on the base. The locking seat is disposed on the mounting frame, and the locking rod rotates on the locking seat. The locking rod and the quick-lock sleeve are detachably connected.

[0023] By adopting the above technical solution, the connecting mechanism includes a base, a quick-lock sleeve, a locking seat, and a locking rod. The base is mounted on the bottom support frame, and the quick-lock sleeve is fixed to the base; the locking seat is mounted on the mounting frame, and the locking rod rotates on the locking seat. During assembly, the locking rod engages with the quick-lock sleeve, and rotating the locking rod locks or releases the connection; this achieves quick connection and separation, simplifying the bracket assembly process; the cooperation between the quick-lock sleeve and the locking rod provides sufficient locking force to ensure stability; and it solves the problem of time-consuming assembly of existing brackets, making it suitable for rapid on-site deployment.

[0024] Optionally, the base is provided with a positioning pin, and the locking seat is provided with a positioning groove, and the positioning pin cooperates with the positioning groove.

[0025] By adopting the above technical solution, a positioning pin is set on the base and a positioning groove is opened on the locking seat; during assembly, the positioning pin and the positioning groove cooperate to guide the connection mechanism to be correctly aligned, and then locked by the locking rod; it provides a precise positioning function to prevent misalignment during connection and enhances the reliability and stability of assembly; it further optimizes the quick connection mechanism, reduces adjustment time, and improves user experience; at the same time, it can reduce rotation during observation and improve stability.

[0026] Optionally, a limit rod is rotatably provided on the rotating frame and is located at the end of the rotating frame away from the limit rod. An anti-detachment rod is provided at the end of the limit rod. The anti-detachment rod is set at an angle with the limit rod and can rotate to the upper side of the rotating frame.

[0027] By adopting the above technical solution, a limiting rod is rotatably installed on the rotating frame, located at the end of the rotating frame away from the limiting rod. An anti-slip rod is installed at the end of the limiting rod, with an angle between the anti-slip rod and the limiting rod, allowing it to rotate to the upper side of the rotating frame. When placing equipment, the anti-slip rod rotates to the upper side, forming a guardrail to prevent the equipment from slipping. This enhances the equipment's limiting function, and the anti-slip rod provides additional protection, especially suitable for fixing equipment at tilt angles. It solves the problem of existing support equipment easily slipping, improving testing safety. Furthermore, the combination of the limiting frame and the limiting rod reduces equipment slippage during rapid or frequent angle adjustments, further improving safety. A torsion spring is installed on the rotating frame and connected to the limiting rod.

[0028] Optionally, a torsion spring is provided on the rotating frame, and the torsion spring is connected to the limiting rod, so that the anti-detachment rod on the limiting rod is always located on the upper side of the rotating frame.

[0029] By adopting the above technical solution, the torsion spring automatically applies torque, keeping the anti-detachment rod always in the upper position of the rotating frame without manual adjustment; it realizes the automatic reset of the anti-detachment rod, ensuring that the limit function is always effective; it provides a passive safety mechanism, reduces operation steps, and improves convenience and reliability.

[0030] Optionally, the mounting bracket is provided with a driving block, the driving block is annular and has a spiral inclined guide groove, the limiting rod can be inserted into the annular space of the driving block, the limiting rod is provided with a driving rod, the driving rod slides along the guide groove and drives the limiting rod to rotate.

[0031] By adopting the above technical solution, a drive block is set on the mounting frame. The drive block is annular and has a spiral inclined guide groove. The limit rod can be inserted into the annular space of the drive block, and a drive rod is set on the limit rod. When the angle of the rotating frame changes, the drive rod slides along the guide groove, driving the limit rod to rotate, thereby automatically adjusting the angle of the anti-detachment rod. This realizes the linkage adjustment between the angle of the limit rod and the angle of the rotating frame, and the anti-detachment rod automatically adapts to the angle change, always maintaining the optimal limit position. It provides an intelligent limit function, solves the trouble of manually adjusting the limit rod, and further optimizes the operation process. At the same time, when placed horizontally, there is no vertical limit, which facilitates the removal and placement of the equipment, improves the convenience of operation, and improves work efficiency.

[0032] Optionally, the limiting rod slides and rotates on the rotating frame, and a limiting ring is provided on the limiting rod. When the limiting rod moves away from the mounting frame, the limiting ring abuts against the side wall of the rotating frame near the mounting frame. A lifting plate is provided on the limiting rod, and the lifting plate is located on the side of the rotating frame near the equipment. A hidden groove is provided on the rotating frame, and the lifting plate can be hidden in the hidden groove.

[0033] By adopting the above technical solution, the limiting rod slides and rotates on the rotating frame, and a limiting ring is provided on the limiting rod. When the limiting rod moves away from the mounting frame, the limiting ring abuts against the side wall of the rotating frame, limiting the sliding distance. A lifting plate is provided on the limiting rod, located on the side of the rotating frame closest to the equipment. A hidden groove is provided on the rotating frame, and the lifting plate can be hidden in the hidden groove. When it is necessary to pick up or put down the equipment, the lifting plate can be pushed out of the hidden groove to lift the equipment for easy operation. A multi-functional limiting mechanism is provided, the limiting ring prevents excessive sliding, and the lifting plate facilitates the picking up and putting down of the equipment. It realizes precise control and hidden design of the limiting rod, saves space, and improves aesthetics and practicality. It comprehensively optimizes the equipment fixing and picking up / putting-down process and solves the defects of the inconvenience of operation of the existing bracket.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. It solves the problems of cumbersome bracket assembly, fixed angle, and easy equipment displacement in the existing technology, improving testing efficiency and operational comfort; at the same time, the multi-angle adjustment makes it convenient for testing personnel to observe from multiple angles, adapting to different groups of people, improving applicability, reducing the possibility of frequent bending over for observation, reducing fatigue index, and improving testing comfort;

[0036] 2. It provides a complete adjustment-locking-reset cycle, which improves operational efficiency and solves the problem of cumbersome reset of existing stents; it reduces the possibility of manual intervention in adjustment and improves adjustment efficiency;

[0037] 3. It provides a multi-functional limit mechanism, with limit rings preventing excessive slippage and lifting plates facilitating equipment placement and removal; it achieves precise control and concealed design of the limit rod, saving space and improving aesthetics and practicality; it comprehensively optimizes the equipment fixing and placement process, solving the shortcomings of inconvenient operation of existing brackets. Attached Figure Description

[0038] Figure 1 This is an overall structural diagram of the equipment bracket in Embodiment 1 of this application;

[0039] Figure 2 This is an exploded view of the quick-lock sleeve and the base in Embodiment 1 of this application;

[0040] Figure 3 This is a diagram illustrating the quick-lock sleeve in Embodiment 1 of this application;

[0041] Figure 4 This is a structural diagram of the mounting bracket in Embodiment 1 of this application;

[0042] Figure 5 This is a diagram illustrating the telescopic mechanism in Embodiment 1 of this application;

[0043] Figure 6 This is a cross-sectional view of the fixing rod in Embodiment 1 of this application;

[0044] Figure 7 This is a cross-sectional view of the locking seat in Embodiment 1 of this application;

[0045] Figure 8 This is an exploded view of the locking rod and locking seat in Embodiment 1 of this application;

[0046] Figure 9 This is a diagram showing the installation position of the limit rod in Embodiment 2 of this application;

[0047] Figure 10 This is a diagram illustrating the hidden slot in Embodiment 2 of this application;

[0048] Figure 11 This is a diagram showing the fit between the limit rod and the drive block in Embodiment 2 of this application.

[0049] Reference numerals: 100, bottom support frame; 200, connecting seat; 300, mounting bracket; 310, mounting clamp; 311, first mounting hole; 312, second mounting hole; 320, connecting bolt; 330, connecting arm; 340, bearing plate; 350, first hidden plate; 360, second hidden plate; 370, incomplete gear; 400, connecting mechanism; 410, base; 411, mounting groove; 420, quick-lock sleeve; 421, insertion groove; 422, protrusion; 430, locking seat; 431, first through hole; 432, second through hole; 433, rotating groove; 440, locking rod; 441, first sliding groove; 442, the... 450. Sliding groove; 460. Positioning pin; 470. Extension part; 480. Tightening part; 500. Limiting post; 510. Rotating frame; 600. Hidden groove; 610. Telescopic mechanism; 610. Fixed rod; 611. Sliding hole; 612. First reset groove; 613. Second reset groove; 614. Reset block; 615. Positioning groove; 620. Sliding rod; 630. Locking assembly; 631. Pawl; 632. Rack; 633. Tension spring; 700. Limiting frame; 810. Limiting rod; 820. Anti-detachment rod; 830. Drive block; 831. Guide groove; 840. Drive rod; 850. Limiting ring; 860. Lifting plate; 870. Pad strip. Detailed Implementation

[0050] The following combination Figures 1 to 11 This application will be described in further detail.

[0051] This embodiment discloses a portable testing instrument bracket.

[0052] The following detailed description of a specific embodiment of a portable testing instrument bracket, in conjunction with the technical solution of this application, is intended to enable those skilled in the art to fully understand the structural features, connection relationships, usage process, and technical effects of the present invention, but is not intended to limit the scope of protection of the present invention.

[0053] Example 1: The portable testing instrument support provided in this embodiment adopts a modular design, mainly consisting of three parts: a bottom support module, a middle connecting module, and an equipment carrying module. The bottom support module provides stable ground support; the middle connecting module enables quick assembly and disassembly between the bottom support module and the equipment carrying module; the equipment carrying module is used to hold the testing instrument and can be adjusted at multiple angles and reliably locked. The modules are connected by specific mechanical structures and work together to ultimately achieve a comprehensive effect of portability, rapid deployment, flexible angle adjustment, and secure equipment fixation.

[0054] Reference Figures 1 to 8The bottom support module includes a foldable tripod as a bottom support frame 100 to provide a wide and stable support surface. A connecting seat 200 is fixedly installed at the top center of the tripod, specifically a disc-shaped base 410. The base 410 is vertically fixedly mounted at the center of its upper surface. A mounting groove 411 is formed in the middle of the base 410. A quick-lock sleeve 420 is detachably connected to the base 410 by bolts, and the quick-lock sleeve 420 is located within the mounting groove 411. A circular insertion groove 421 is formed in the middle of the quick-lock sleeve 420, and a hemispherical protrusion 422 is installed within the insertion groove 421.

[0055] The core of the intermediate connection module is a mounting bracket 300, which includes two mounting plates 310. The mounting plates 310 are rectangular. The upper mounting plate 310 has a circular first mounting hole 311 in its center, and the lower mounting plate 310 has a circular second mounting hole 312 in its center. The diameter of the second mounting hole 312 is smaller than that of the first mounting hole 311. Connecting bolts 320 are installed at the four corners of the two mounting plates 310, connecting the two mounting plates 310. There is a gap between the two mounting plates 310. The portion of the connecting bolts 320 between the two mounting plates 310 is a cylindrical optical shaft. Each connecting shaft is rotatably connected to an incomplete gear 370. Two incomplete gears 370 at each end of the rectangular mounting plate 310 mesh. A connecting arm 330 is fixedly connected to the incomplete gear 370. Two connecting arms 330 at the same end... A support plate 340 is provided at the end of the connecting arm 330 away from the incomplete gear 370. The support plate 340 is detachably connected to the connecting arm 330 by bolts. A first hidden plate 350 is provided on the side of the two support plates 340 that are far apart from each other. A second hidden plate 360 ​​is provided at one end of the support plate 340. The rotating frame 500 can be hidden between the first hidden plate 350 and the second hidden plate 360. The equipment support module includes a rotating frame 500 for directly supporting the testing equipment. The rotating frame 500 is rotatably connected to the second hidden plate 360 ​​by a damping hinge, so that the rotating frame 500 can rotate in the vertical plane relative to the mounting frame 300, thereby adjusting the pitch angle of the testing equipment. The damping hinge provides rotational resistance, giving the operation a comfortable feel. The connecting mechanism 400 is installed at the first mounting hole 311 and connected to the quick-lock sleeve 420 on the bottom support frame 100.

[0056] The connecting mechanism 400 includes a locking seat 430, which is bolted to a mounting plate 310 with a second mounting hole 312. Part of the locking seat 430 is located between the two mounting plates 310, and the other part passes through the first mounting hole 311. An extension 460 is integrally formed at one end of the locking seat 430 near the second mounting hole 312. A first through hole 431 is formed in the middle of the locking seat 430, passing through both the locking seat 430 and the extension 460. The locking seat 430 has a second through hole 432 at one end away from the extension 460. The second through hole 432 communicates with the first through hole 431, and the diameter of the second through hole 432 is larger than the diameter of the first through hole 431. A locking rod 440 passes through the first through hole 431. The locking rod 440 slides and rotates within the first through hole 431. One end of the locking rod 440 passes through the first through hole 431 and extends, while the other end is located within the second through hole 432. One end of the locking rod 440 inside 32 is detachably connected to a rotating part by bolts. The rotating part rotates and slides within the second through hole 432. A screwing part 470 is integrally formed at the end of the rotating part away from the locking rod 440. The screwing part 470 abuts against the side wall of the locking seat 430 away from the mounting plate 310 and rotates. The end of the locking rod 440 away from the rotating part can extend into the insertion groove 421. A first sliding groove 441 is formed at the end of the locking rod 440 away from the rotating part. The opening axis is parallel to the axis of the locking rod 440. The protrusion 422 can slide in the first sliding groove 441. A second sliding groove 442 is provided on the side wall of the locking rod 440. The second sliding groove 442 is spiral and spirals away from the bottom support frame 100. The second sliding groove 442 is connected to the first sliding groove 441. The protrusion 422 can slide from the first sliding groove 441 into the second sliding groove 442, thereby realizing the quick connection and separation of the mounting frame 300 and the base 410.

[0057] Furthermore, in order to reduce the separation of the locking rod 440 from the locking seat 430, a fan-shaped rotating groove 433 is provided at the end of the extension 460 away from the locking seat 430. A limiting post 480 is fixedly connected to the locking rod 440. The limiting post 480 swings in the rotating groove 433 to limit the rotation angle of the locking rod 440. The limiting post 480 can abut against the bottom wall of the rotating groove 433 to limit the axial movement of the locking rod 440.

[0058] To ensure accurate alignment, a locating pin 450 with an upward protrusion is provided on the base 410. At the same time, a locating groove 615 is provided on the bottom of the mounting plate 310 with a second mounting hole 312. During assembly, the locating pin 450 and the locating groove 615 cooperate to achieve pre-positioning.

[0059] To lock the adjusted angle, a telescopic mechanism 600 is also provided on the mounting frame 300. The telescopic mechanism 600 includes a fixed rod 610, one end of which is rotatably connected to the mounting clamp 310 via a hinge seat; a sliding hole 611 is provided at the end of the fixed rod 610 away from the mounting clamp 310, and a sliding rod 620 is slidably connected in the sliding hole 611. The other end of the sliding rod 620 is connected to the bottom of the rotating frame 500 via a hinge seat, and the hinge position of the sliding rod 620 is located at the end of the rotating frame 500 away from the second hidden plate 360; by extending and retracting the sliding rod 620 within the fixed rod 610, the rotating frame 500 can be driven to rotate around its hinge point.

[0060] To achieve locking, a locking assembly 630 is provided on the fixed rod 610. The locking assembly 630 includes a rack 632 fixed to the side of the sliding rod 620. The rack 632 slides in the sliding hole 611. A through groove is formed on the side wall of the fixed rod 610 away from the sliding rod 620 and close to the mounting plate 310. The through groove passes through the fixed rod 610 and communicates with the sliding hole 611, so that the rack 632 and the sliding rod 620 are exposed. A mounting ear is fixedly connected to the side wall of the fixed rod 610 with the through groove. A pawl 631 is rotatably connected to the mounting ear through a pivot. The pawl 631 engages with the rack 632 and is inclined towards the sliding plate 620. The hinge end of the moving rod 620; a connecting ear is installed on the pawl 631, which is located on the side of the pawl 631 away from the hinge end of the sliding rod 620. A tension spring 633 is fixedly connected to the fixed rod 610. The tension spring 633 is connected to the connecting ear, which drives the pawl 631 to rotate and press against the rack 632. In its natural state, the pawl of the pawl 631 always tends to rotate towards the mounting bracket 300 under the tension of a tension spring 633, so that it is engaged with the rack 632. The engagement direction is designed to only allow the sliding rod 620 to extend outward and prevent it from retracting, thus realizing the one-way locking of the rotating bracket at an angle of 500.

[0061] To further optimize the user experience, a first reset groove 612 and a second reset groove 613 are respectively provided inside the housing of the fixed rod 610, corresponding to the two ends of the travel of the rack 632. When it is necessary to reset the rotating frame 500 to the minimum angle, the user continues to push the rotating frame 500 upward to the limit position. At this time, the tail of the pawl 631 will fall into the first reset groove 612, so that the head of the pawl 631 overcomes the tension of the tension spring 633 and lifts up, thereby separating from the rack 632. At this time, the sliding rod 620 can retract freely, and the rotating frame 500 can rotate downward to reset. After the sliding rod 620 retracts into place, the user pushes the rotating frame 500 upward again slightly, and the tail of the pawl 631 will slide into the second reset groove 613. The reset block 614 set in the groove will push the head of the pawl 631 back down to the pre-engagement position, preparing for the next angle adjustment.

[0062] Furthermore, in order to reduce the risk of equipment falling off when the rotating frame 500 rotates, a limiting frame 700 is installed on the rotating frame 500. The limiting frame 700 consists of three surrounding plates, which are arranged around three sides of the rotating frame 500 and located on the side closest to the rotating end of the rotating frame 500.

[0063] Furthermore, in order to reduce the separation of the sliding rod 620 from the fixed rod 610, a limiting platform is provided at the end of the sliding rod 620 away from the rotating frame 500. The limiting platform is used to limit the excessive sliding of the sliding rod 620 from separating from the fixed rod 610.

[0064] In use, the entire support module (tripod and base 410), intermediate connecting module (mounting bracket 300, connecting mechanism 400), and equipment bearing module (rotating frame 500, telescopic mechanism 600, etc.) can be transported separately. Upon arrival at the test site, the tripod of the bottom support module is first unfolded and placed stably on the ground.

[0065] The operator holds the assembly of the intermediate connecting module and the equipment carrying module, aligns the positioning groove 615 at the bottom of the locking seat 430 with the positioning pin 450 on the base 410, and lowers it to achieve pre-positioning. Then, the operator presses down and rotates the screwing part 470 at the upper end of the locking rod 440. This operation drives the locking rod 440 downward and rotates, causing the protrusion 422 at the end of the locking rod 440 to enter the spiral second sliding groove 442 from the first sliding groove 441. Guided by the spiral groove, the locking rod 440 is tightened, thereby firmly locking the intermediate connecting module and the equipment carrying module onto the bottom support module, completing the rapid assembly of the overall bracket.

[0066] The relay protection tester is placed on the rotating frame 500, with its bottom and sides initially limited by the three-sided enclosure of the limiting frame 700. Based on the observation angle required by the on-site operator, the far end of the rotating frame 500 is lifted upwards. The rotating frame 500 rotates via a damping hinge, causing the sliding rod 620 at its bottom to extend from the fixed rod 610. The rack 632 on the sliding rod 620 moves accordingly, driving the pawl 631 to unidirectionally jump over its tooth groove. Under the action of the tension spring 633, the pawl 631 always presses firmly against the rack 632, forming a one-way self-locking mechanism, thereby reliably locking the rotating frame 500 at the required tilt angle.

[0067] During the angle adjustment of the rotating frame 500, if the rotating frame 500 is in a horizontal or small angle state, it is convenient to directly pick up and put down the equipment. When the rotating frame 500 is raised to a larger angle, the limiting frame 700 can effectively prevent the equipment from slipping. After use, the rotating frame 500 is pushed upward to the limit position. This action causes the tail of the pawl 631 to fall into the first reset groove 612 on the fixed rod 610, the head of the pawl 631 is raised and disengaged from the rack 632, and the unlocking is successful. At this time, the operator can then rotate the rotating frame 500 downward to the horizontal storage position. During this process, the sliding rod 620 retracts into the fixed rod 610. When the rotating frame 500 is close to horizontal, a slight upward push will cause the tail of the pawl 631 to slide into the second reset groove 613. The reset block 614 in the groove pushes the pawl 631 back to the pre-engaged state, preparing it for the next use.

[0068] When the site needs to be moved, rotate the screw 470 of the locking rod 440 in the opposite direction to retract the protrusion 422 from the second sliding groove 442 to the first sliding groove 441, so that the upper module can be lifted as a whole and separated from the bottom tripod. Each module can be compactly stored separately for easy carrying.

[0069] Example 2: Refer to Figure 9 , Figure 10 and Figure 11 The difference between this embodiment and embodiment 1 is that, in terms of equipment safety, a limiting rod 810 is slidably and rotatably provided on the upper surface of the rotating frame 500 near its free end. The limiting rod 810 is perpendicular to the rotating frame 500, and an anti-detachment rod 820 with a certain angle to itself is fixed at the top of the limiting rod 810. A set of torsion springs acts on the limiting rod 810, so that in its natural state, the anti-detachment rod 820 is always located on one side of the placement area of ​​the rotating frame 500 under the torsion of the torsion spring. The limiting rod 810 is used to reduce the equipment from falling off. In order to facilitate the loading and unloading of the equipment when the rotating frame 500 is horizontal, an annular drive block 830 is fixedly installed on the mounting frame 300. The inner side of the drive block 830 is provided with a spirally rising and inclined guide groove 831. A drive rod 840 extends from the bottom of the limiting rod 810. The drive rod 840 can be inserted into the annular space of the drive block 830. The outer diameter of the annular space is larger than the outer diameter of the limiting rod 810, so that the limiting rod 810 can move into the annular space. When the rotating frame 500 rotates downward from an inclined state to a horizontal state, the drive rod 840 moves along the guide groove 831, thereby forcing the limiting rod 810 to rotate and rotate the anti-detachment rod 820 to move out of the placement area of ​​the rotating frame 500, making it easier to place or remove the equipment; when the rotating frame 500 rotates upward to adjust the angle, the drive rod 840 returns along the original path, and under the action of the torsion spring, the anti-detachment rod 820 automatically resets to above the placement area of ​​the rotating frame 500, which is used to limit the vertical direction of the equipment and reduce the equipment from sliding and falling off.

[0070] In other embodiments, the torsion spring may not be required, and the reciprocating rotation may be completed by relying on the constraint of the guide groove 831.

[0071] Furthermore, a lifting plate 860 is fixed on the limiting rod 810. The lifting plate 860 is located on the side of the rotating frame 500 away from the mounting frame 300, and a corresponding hidden groove 510 is provided. The lifting plate 860 is located in the hidden groove 510 and can rotate within the hidden groove 510. A padding strip 870 is provided in the hidden groove 510. Both ends of the lifting plate 860 have chamfers on the side walls near the driving block 830. When rotating, it contacts the padding strip 870 and guides it to slide above the padding strip 870. When the driving rod 840 slides along the guide groove 831, it drives the lifting plate 860 to rotate and slide above the padding strip 870, lifting one end of the equipment, making it easier for the operator to apply force to pick up and put down the equipment.

[0072] In summary, this embodiment, through the ingenious mechanical structure design and combination described above, effectively solves a series of technical problems existing in the tester bracket, such as cumbersome assembly, invariable angle adjustment, unreliable locking, easy slippage of equipment, and poor portability, significantly improving the efficiency, safety, and operational comfort of on-site testing work.

[0073] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable test meter equipment support, characterized by: The utility model relates to a test instrument support device, including: The bottom support frame (100) is placed on the ground and is used for supporting test instrument equipment; The connecting seat (200) is arranged on the bottom support frame (100); The mounting bracket (300) is provided with a first mounting hole (311) in the middle; The connecting mechanism (400) is arranged at the first mounting hole (311) of the mounting bracket (300) and is detachably connected with the connecting seat (200); The rotary frame (500) is hingedly arranged on the mounting bracket (300) at one end and is used for placing test instrument equipment; The telescopic mechanism (600) is arranged on the mounting bracket (300) and is connected with the rotary frame (500) and is used for fixing the position of the rotary frame (500); The limiting frame (700) is arranged on the rotary frame (500) and is used for limiting test instrument equipment; The limiting rod (810) is rotatably arranged on the rotary frame (500) and is located at the end of the rotary frame (500) away from the limiting frame (700), the end of the limiting rod (810) is provided with an anti-dropping rod (820), the anti-dropping rod (820) is arranged at an angle with the limiting rod (810) and can be rotated to one side of the placement area of the rotary frame (500); The torsional spring is arranged on the rotary frame (500) and is connected with the limiting rod (810) and drives the anti-dropping rod (820) on the limiting rod (810) to always be located on one side of the placement area of the rotary frame (500); The driving block (830) is arranged on the mounting bracket (300) and is annular and is provided with a helical inclined guide groove (831), the limiting rod (810) can be inserted into the annular space of the driving block (830), the driving rod (840) is arranged on the limiting rod (810) and slides along the guide groove (831) and drives the limiting rod (810) to rotate and rotates the anti-dropping rod (820) to be separated from the placement area of the rotary frame (500); The limiting rod (810) slides and rotates on the rotary frame (500), the limiting ring (850) is arranged on the limiting rod (810), when the limiting rod (810) moves away from the mounting bracket (300), the limiting ring (850) abuts against the side wall of the rotary frame (500) close to the mounting bracket (300), the lifting plate (860) is arranged on the limiting rod (810) and is located on the side of the rotary frame (500) close to the equipment, the hidden groove (510) is arranged on the rotary frame (500), the lifting plate (860) can be hidden in the hidden groove (510), the pad strip (870) is arranged in the hidden groove (510), the ends of the lifting plate (860) are provided with chamfers on the side walls close to the driving block (830), when the lifting plate (860) rotates, the lifting plate (860) contacts the pad strip (870) and is guided to slide above the pad strip (870).

2. The portable test meter equipment support of claim 1, wherein: The telescopic mechanism (600) comprises a fixed rod (610), a sliding rod (620) and a locking assembly (630), one end of the fixed rod (610) is hingedly connected to the mounting rack (300), one end of the sliding rod (620) is slidably connected to one end of the fixed rod (610), and the other end of the sliding rod (620) is rotatably connected to the rotating rack (500); the locking assembly (630) is arranged on the fixed rod (610), and the locking assembly (630) is used for locking the sliding rod (620).

3. The portable test meter equipment support of claim 2, wherein: The locking assembly (630) comprises a pawl (631), a rack (632) and a tension spring (633), the rack (632) is arranged on the sliding rod (620), the pawl (631) is rotatably arranged on the fixed rod (610), the pawl (631) is engaged with the rack (632) and is inclined towards the movable end of the rotating rack (500); and the tension spring (633) is arranged on the mounting rack (300) and connected with the pawl (631) and used for pulling the pawl (631) to rotate towards the mounting rack (300).

4. The portable test meter equipment support of claim 3, wherein: First and second reset grooves (612 and 613) are formed in the fixed rod (610), the first and second reset grooves (612 and 613) are respectively located at two ends of the rack (632), the first reset groove (612) is close to the mounting rack (300), when the pawl (631) enters the first reset groove (612), the pawl (631) is separated from the rack (632), so that the rack (632) can slide towards the mounting rack (300); the second reset groove (613) is provided with a reset block (614) close to one side of the rack (632), when the pawl (631) enters the second reset groove (613), the pawl (631) is separated from the rack (632), and when the rack (632) is away from the mounting rack (300), the reset block (614) pushes the pawl (631) to be inclined towards the movable end of the rotating rack (500).

5. The portable test meter equipment support of claim 4, wherein: The connecting mechanism (400) comprises a base (410), a quick-lock sleeve (420), a locking seat (430) and a locking rod (440), the base (410) is arranged on the bottom support rack (100), and the quick-lock sleeve (420) is arranged on the base (410); the locking seat (430) is arranged on the mounting rack (300), the locking rod (440) is rotatably arranged on the locking seat (430), and the locking rod (440) is detachably connected with the quick-lock sleeve (420) in cooperation.

6. The portable test meter equipment support of claim 5, wherein: The base (410) is provided with a positioning pin (450), and the locking seat (430) is provided with a positioning groove (615) in cooperation, and the positioning pin (450) cooperates with the positioning groove (615).

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