Primary frequency modulation function testing device

Abstract

The utility model relates to the technical field of power equipment, in particular to a primary frequency modulation function testing device, which comprises an outer box body, an inner box body is arranged in the outer box body, and a limiting mechanism is arranged between the outer side of the inner box body and the inner side of the outer box body; the front end surfaces of the outer box body and the inner box body are of open structures, a frequency modulation device main body is mounted in the inner box body, and a control panel of the frequency modulation device main body is mounted on the front end surface of the inner box body; the outer side of the outer box body is provided with a box cover assembly used for controlling opening and closing of the front end face of the outer box body. A locking assembly is fixedly mounted on one side of the outer box body; through the arrangement of the outer box body, the inner box body and the limiting mechanism, a buffer interval exists between the inner box body and the outer box body, and the shock resistance of the device is improved; and through the arrangement of the box cover assembly, the open end of the outer box body can be closed in the transportation process, and the situation that the control panel is impacted and damaged is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power equipment, concretely is a primary frequency modulation function testing device. BACKGROUND

[0002] The primary frequency modulation function testing device generally refers to the equipment for detecting and verifying the frequency modulation function in the power system. It can simulate the response ability of the generator set to frequency variation under different load conditions, monitor the power grid frequency and generator output power in real time, provide real-time data to analyze the frequency modulation performance and verify the working state and regulation capacity of the thermal power generator set under the primary frequency modulation mode, etc. It ensures the stability and reliability of the power system, clearly shows the performance of the unit in the frequency modulation capacity, and further optimizes the performance of the power grid scheduling and the generator set.

[0003] The existing primary frequency modulation function testing device usually adopts a box structure. This structure can effectively protect the internal electronic components, measuring equipment and circuit, and is convenient for carrying and operation.

[0004] However, the existing primary frequency modulation function testing device with the box structure still has the following disadvantages in the use process:

[0005] The protection structure is relatively simple. Commonly, a flexible material is wrapped at the corner of the box structure. When the control panel side of the box is accidentally touched and impacted from the outside, the display screen and knob are easily damaged, and the internal components of the box have a high risk of damage after being impacted. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a primary frequency modulation function testing device to solve the problems in the above background technology.

[0007] The purpose of the utility model can be realized by the following technical solutions:

[0008] A primary frequency modulation function testing device, comprising an outer box, an inner box is installed in the outer box, a limiting mechanism is arranged between the outer side of the inner box and the inner side of the outer box; the front end faces of the outer box and the inner box are both open structures, a frequency modulation device main body is installed in the inner box, and a control panel of the frequency modulation device main body is installed at the front end face position of the inner box;

[0009] A box cover assembly for controlling the opening and closing of the front end face of the outer box is arranged on the outer side of the outer box, the box cover assembly comprises a support assembly rotatably connected between the two side faces of the outer box, an adjusting assembly is arranged in the support assembly, and a box cover matching the front end face of the outer box is connected to the front end of the adjusting assembly;

[0010] A locking assembly for controlling the relative rotation between the support assembly and the side face of the outer box is fixedly installed on one side of the outer box.

[0011] Further, the limiting mechanism comprises the abutting plate one, the fixed seat, the abutting plate two and the abutting plate three, the fixed seat is arranged between the bottom end of the inner box body and the outer box body, and the abutting plate one is arranged between the two sides of the inner box body and the outer box body, the side of the abutting plate one away from the inner box body is fixedly connected with the spring damper one close to the corner of the abutting plate one, and the end of the spring damper one away from the inner box body is fixedly connected with the inner side of the outer box body corresponding to the end of the spring damper one, under the elastic support of the spring damper one, the side of the abutting plate one close to the inner box body is in extrusion sliding contact with the inner box body.

[0012] The abutting plate three is arranged between the rear end face of the outer box body and the rear end face of the inner box body, and the spring damper three is fixedly connected between the side of the abutting plate three away from the inner box body and the rear end face of the outer box body close to the corner.

[0013] The fixed seat is fixedly installed on the front end face of the outer box body close to the corner, the side of the fixed seat close to the inner box body is fixedly connected with the plurality of spring dampers two, and the abutting plate two is fixedly installed on the end of the plurality of spring dampers two away from the fixed seat.

[0014] Under the elastic support of the spring damper two and the spring damper three, the inner box body is in extrusion sliding contact with the abutting plate two and the abutting plate three.

[0015] Further, the side of the abutting plate two, the abutting plate one and the abutting plate three close to the inner box body is uniformly embedded with the plurality of balls.

[0016] Further, the supporting assembly comprises the gear and the mounting column two, the gear and the mounting column two are rotatably installed on the two sides of the outer box body, the gear and the mounting column two are coaxially arranged, the periphery of the mounting column two is fixedly connected with the connecting rod two, the mounting column two away from the outer box body is fixedly installed with the mounting column one coaxial with the gear, the periphery of the mounting column one is fixedly connected with the connecting rod one, and the end of the connecting rod one away from the mounting column one is fixedly connected with the connecting plate.

[0017] Further, the outer side of the connecting plate is fixedly installed with the abutting block close to both ends.

[0018] Further, the adjusting assembly comprises the lead screw which is screwed through the connecting rod one at the middle line position of the side of the connecting plate, the end of the lead screw away from the outer box body is fixedly installed with the knob, and the other end of the lead screw is rotatably connected with the box cover.

[0019] The outer side of the connecting plate is also slidably penetrated with the two sliding rods which are symmetrically distributed about the lead screw, the end of the sliding rod away from the outer box body is fixedly installed with the stop block, and the other end of the sliding rod is fixedly connected with the box cover.

[0020] Further, the locking assembly comprises a convex plate fixedly installed on the side surface of the outer box body, and the convex plate is located on the same side of the gear as the outer box body, and the convex plate is arranged directly above the gear;

[0021] The top surface of the convex plate is slidably installed with a sliding plate, the bottom end of the sliding plate is fixedly installed with a clamping tooth matched with the gear, both sides of the convex plate are fixedly connected with a mounting seat near the top position, and the bottom surface of the mounting seat is fixedly connected with a spring between the top surface of the convex plate;

[0022] Under the elastic force of the spring, the clamping tooth is elastically pressed and contacted with the periphery of the gear.

[0023] Further, the outer surface of the outer box body is covered with a protective pad.

[0024] Further, the outer box body is made of metal material.

[0025] Further, the rear end surface of the outer box body is provided with a heat dissipation hole.

[0026] The beneficial effects of the present application are as follows:

[0027] 1. In the present application, the outer box body, the inner box body and the limiting mechanism are arranged to provide a buffer interval between the inner box body and the outer box body. After the outer box body is impacted, the inner box body will move adaptively between the resisting plate one, the resisting plate three and the resisting plate two according to the impact direction. In combination with the arrangement of the spring damper two, the spring damper three and the spring damper one, the inner box body can be reset in the outer box body, and the impact on the inner box body can be greatly absorbed, thereby providing protection for the equipment in the inner box body and improving the impact resistance of the device and reducing the risk of damage to the internal parts of the inner box body after impact.

[0028] 2. In the present application, the locking assembly, the supporting assembly, the adjusting assembly and the box cover are cooperatively arranged to close the open end of the outer box body during transportation, avoid the control panel from being damaged by impact, and adjust the operation angle of the control panel within a certain range according to the operation requirements of the operator during use, thereby improving the practicability of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings;

[0030] Figure 1Is the three-dimensional schematic view of the overall structure of the utility model;

[0031] Figure 2 Is Figure 1 The enlarged view of part A in the middle;

[0032] Figure 3 Is Figure 1 The three-dimensional schematic view from another angle;

[0033] Figure 4 Is the three-dimensional schematic view of the connection relationship between the outer box body and the inner box body in the utility model;

[0034] Figure 5 Is Figure 4 The enlarged view of part B in the middle;

[0035] Figure 6 Is Figure 4 The three-dimensional schematic view from another angle;

[0036] Figure 7 Is Figure 6 The enlarged view of part C in the middle;

[0037] Figure 8 Is the three-dimensional schematic view of the connection relationship between the rear end face of the inner box body and the rear end face of the outer box body in the utility model;

[0038] Among them, the reference signs are as follows:

[0039] 1-outer box body, 2-link one, 3-connection plate, 4-abutment block, 5-link two, 6-box cover, 7-screw rod, 8-knob, 9-sliding rod, 10-stop block, 11-gear, 12-mounting column one, 13-convex plate, 14-sliding plate, 15-mounting seat, 16-spring, 17-claw, 18-mounting column two, 19-inner box body, 20-abutment plate one, 21-spring damper one, 22-fixing seat, 23-abutment plate two, 24-spring damper two, 25-abutment plate three, 26-spring damper three, 27-heat dissipation hole. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0041] Embodiment 1:

[0042] Please refer to Figures 1-8The utility model discloses an embodiment of one kind, a frequency modulation function test device, including outer box 1, the inner box 19 is installed in outer box 1, and the outer side of inner box 19 is provided with the limiting mechanism between the inner side of outer box 1;The front end face of outer box 1 and inner box 19 is all open structure, and the frequency modulation device main part is installed in inner box 19, and the control panel of frequency modulation device main part is installed in the front end face position of inner box 19;Frequency modulation device main part is the frequency modulation function test device in prior art is used to realize the detection and the verification frequency modulation function of power grid, thermal power generating set etc.

[0043] The outer side of outer box 1 is provided with a box cover assembly for controlling the opening and closing of the front end face of outer box 1, the box cover assembly comprises a support assembly rotatably connected between the two side faces of outer box 1, the support assembly is provided with an adjusting assembly, and the front end of the adjusting assembly is connected with a box cover 6 matching the front end face of outer box 1.

[0044] One side of outer box 1 is fixedly provided with a locking assembly for controlling the relative rotation between the support assembly and the side face of outer box 1.

[0045] The limiting mechanism comprises a first abutting plate 20, a fixed seat 22, a second abutting plate 23 and a third abutting plate 25, the fixed bottom end and the two sides of inner box 19 are provided with the first abutting plate 20 between the inner box 1, the side away from the inner box 19 of the first abutting plate 20 is fixedly connected with a spring damper 21 at a position close to the corner of the first abutting plate 20, and the side close to the inner box 19 of the first abutting plate 20 is in extrusion sliding contact with the inner box 19 under the elastic support of the spring damper 21.

[0046] The rear end face of outer box 1 and the rear end face of inner box 19 are provided with the third abutting plate 25, and the third abutting plate 25 is fixedly connected with a spring damper 26 between the rear end face of outer box 1 and the side away from the inner box 19 at a position close to the corner of the third abutting plate 25.

[0047] The front end face of outer box 1 is fixedly provided with the fixed seat 22 at a position close to the corner, and the side close to the inner box 19 of the fixed seat 22 is fixedly connected with a plurality of spring dampers 24, and the end away from the fixed seat 22 of the plurality of spring dampers 24 is commonly fixedly provided with the second abutting plate 23.

[0048] Under the elastic support of the spring damper 24 and the spring damper 26, the inner box 19 is in extrusion sliding contact with the second abutting plate 23 and the third abutting plate 25.

[0049] The support assembly comprises a gear 11 and a mounting column II 18, the gear 11 and the mounting column II 18 are rotatably installed on the two sides of the outer box body 1 respectively, the gear 11 is coaxially arranged with the mounting column II 18, the outer periphery of the mounting column II 18 is fixedly connected with a connecting rod II 5, the mounting column II 18 is fixedly installed with a mounting column I 12 coaxially arranged with the gear 11 at the end away from the outer box body 1, the outer periphery of the mounting column I 12 is fixedly connected with a connecting rod I 2, and the end of the connecting rod I 2 away from the mounting column I 12 is fixedly connected with the end of the connecting rod II 5 away from the mounting column II 18.

[0050] The adjusting assembly comprises a lead screw 7 which is screwed through the connecting rod I 2 at the middle line position of the side surface of the connecting plate 3, the end of the lead screw 7 away from the outer box body 1 is fixedly installed with a knob 8, and the other end of the lead screw 7 is rotatably connected with the box cover 6.

[0051] The outer side of the connecting plate 3 is also slidably penetrated through two slide rods 9 which are symmetrically distributed about the lead screw 7, the end of the slide rod 9 away from the outer box body 1 is fixedly installed with a stop block 10, and the other end of the slide rod 9 is fixedly connected with the box cover 6.

[0052] The locking assembly comprises a convex plate 13 which is fixedly installed on the side surface of the outer box body 1 and is located on the same side of the outer box body 1 as the gear 11, and the convex plate 13 is arranged directly above the gear 11.

[0053] The top surface of the convex plate 13 is slidably penetrated through a sliding plate 14, the bottom end of the sliding plate 14 is fixedly installed with a clamping tooth 17 which is used in cooperation with the gear 11, the two sides of the convex plate 13 are fixedly connected with mounting seats 15 at the positions close to the top, and the bottom surface of the mounting seat 15 is fixedly connected with a spring 16 between the top surface of the convex plate 13.

[0054] Under the elastic force of the spring 16, the clamping tooth 17 is elastically pressed and contacted between the outer periphery of the gear 11, so that the relative rotation between the gear 11 and the outer box body 1 is limited, and when it is necessary to contact and lock, the sliding plate 14 is slid upward through the mounting seat 15, so that the clamping tooth 17 is separated from the gear 11.

[0055] The rear end surface of the outer box body 1 is provided with a heat dissipation hole 27.

[0056] In the utility model,

[0057] In the initial state, the connecting rod I 2 and the connecting rod II 5 are parallel to the side length direction of the outer box body 1, the box cover 6 closes the front end opening of the outer box body 1, and the box cover 6 is elastically pressed and contacted with the outer box body 1.

[0058] When the device main body is transferred, the connecting plate 3 in the support assembly can be used as a pull handle, so that the device main body is conveniently carried.

[0059] When the box cover 6 needs to be opened, the screw rod 7 is rotated through the knob 8, so that the box cover 6 is moved away from the outer box body 1 under the guiding and limiting action of the slide rod 9, then the restriction of the gear 11 by the locking assembly is released, and then the connecting plate 3 is rotated to rotate the connecting rod one 2 and the connecting rod two 5, so that the connecting plate 3 is rotated to the lower side or the upper side of the outer box body 1, until the box cover 6 is separated from the front end of the outer box body 1, so that the control panel is exposed.

[0060] When the outer box body 1 does not need to be supported, the connecting plate 3 is rotated to the upper side of the outer box body 1, and when the outer box body 1 needs to be supported, the connecting plate 3 is rotated to the lower side of the outer box body 1, at this time, the connecting plate 3 is in contact with the ground, the front end position of the bottom surface of the outer box body 1 is lifted, and according to the control of the rotation angle of the connecting rod one 2, the lifting height of the front end of the outer box body 1 can be adjusted within a certain range, so that the operation angle of the control panel can be flexibly adjusted within a certain range, thereby providing convenience for the operation process of the staff.

[0061] When the front end of the outer box body 1 needs to be closed, the restriction of the gear 11 by the locking assembly is released, then the connecting plate 3 is rotated to reset, the box cover 6 is aligned with the front end of the outer box body 1, then the screw rod 7 is rotated through the knob 8, so that the box cover 6 is close to the outer box body 1, until the box cover 6 is in contact with the outer box body 1, thereby closing the front end of the outer box body 1, improving the isolation and protection of the control panel, and avoiding the problem that the control panel is easily damaged after being impacted during transportation.

[0062] Therefore, through the cooperation of the locking assembly, the supporting assembly, the adjusting assembly and the box cover 6 in the box cover assembly, the open end of the outer box body 1 can be closed during transportation, the control panel is prevented from being damaged by impact, and the operation angle of the control panel can be adjusted within a certain range according to the operation requirements of the staff during use, thereby improving the practicability of the utility model.

[0063] In the utility model, through the setting of the outer box body 1, the inner box body 19 and the limiting mechanism, there is a buffer interval between the inner box body 19 and the outer box body 1, after the outer box body 1 is impacted, the inner box body 19 will be adaptively moved between the abutting plate one 20, the abutting plate three 25 and the abutting plate two 23 according to the impact direction, and then the setting of the spring damper two 24, the spring damper three 26 and the spring damper one 21 can make the inner box body 19 reset in the outer box body 1, and greatly absorb the impact on the inner box body 19, thereby providing protection for the equipment in the inner box body 19, improving the impact resistance of the device, and reducing the risk of damage of the internal parts of the inner box body 19 after being impacted.

[0064] Embodiment 2:

[0065] On the basis of embodiment 1, the outer surface of the outer box body 1 is covered with a protective pad, and the impact resistance of the device is further improved through the setting of the protective pad.

[0066] Embodiment 3:

[0067] On the basis of embodiment 1, the outer box body 1 is made of metal material, which can provide electromagnetic shielding and reduce the influence of external electromagnetic interference on the internal equipment.

[0068] Embodiment 4:

[0069] On the basis of embodiment 1, the abutting plate two 23, the abutting plate one 20 and the abutting plate three 25 are uniformly embedded with a plurality of ball bearings on the side close to the inner box body 19, which reduces the friction between the inner box body 19 and the abutting plate two 23, the abutting plate one 20 and the abutting plate three 25, and improves the sensitivity of the limiting mechanism when absorbing impact.

[0070] Embodiment 5:

[0071] Please refer to Figure 1 On the basis of embodiment 1, the outer side of the connecting plate 3 is fixedly installed with the abutting block 4 close to both ends, and the setting of the abutting block 4 can avoid the friction damage between the connecting plate 3 and the ground.

[0072] The above shows and describes the basic principle, main features and advantages of the utility model. The skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A primary frequency modulation function test device, characterized in that: The invention comprises an outer box (1), an inner box (19) is installed in the outer box (1), and a limiting mechanism is provided between the outer side of the inner box (19) and the inner side of the outer box (1); the front ends of the outer box (1) and the inner box (19) are both open structures, a frequency modulation device body is installed in the inner box (19), and a control panel of the frequency modulation device body is installed at the front end of the inner box (19); A box cover assembly for controlling the opening and closing of the front end surface of the outer box body (1) is provided on the outside of the outer box body (1), the box cover assembly comprising a support assembly rotatably connected to the two side surfaces of the outer box body (1), an adjustment assembly being provided in the support assembly, and a box cover (6) that matches the front end surface of the outer box body (1) is connected to the front end of the adjustment assembly; A locking assembly for controlling relative rotation between the support assembly and the side surface of the outer box (1) is fixedly mounted on one side of the outer box (1).

2. A primary frequency modulation function test device according to claim 1, characterized in that: The limiting mechanism includes a contact plate 1 (20), a fixed seat (22), a contact plate 2 (23) and a contact plate 3 (25). The contact plate 1 (20) is provided between the fixed bottom end and both sides of the inner box body (19) and the outer box body (1). The side of the contact plate 1 (20) away from the inner box body (19) is fixedly connected to a spring damper 1 (21) at a position close to its corner. The end of the spring damper 1 (21) away from the inner box body (19) is fixedly connected to the inner side corresponding to the outer box body (1). Under the elastic support of the spring damper 1 (21), the side of the contact plate 1 (20) close to the inner box body (19) is in extrusion sliding contact with the inner box body (19); The third contact plate (25) is provided between the rear end face of the outer box body (1) and the rear end face of the inner box body (19), and a third spring damper (26) is fixedly connected between the rear end face of the outer box body (1) and a position close to a corner on the side of the third contact plate (25) away from the inner box body (19); The front end surface of the outer box body (1) is fixedly mounted with the fixing seat (22) at a position close to the corner, and the side surface of the fixing seat (22) close to the inner box body (19) is fixedly connected with a plurality of spring dampers (24) 2, and the ends of the plurality of spring dampers (24) away from the fixing seat (22) are fixedly mounted with the contact plate (23) in common; Under the elastic support of the spring damper 2 (24) and the spring damper 3 (26), the inner box (19) is in extrusion sliding contact with the contact plate 2 (23) and the contact plate 3 (25).

3. A primary frequency modulation function test device according to claim 2, characterized in that: A plurality of balls are evenly embedded on the side surfaces of the second contact plate (23), the first contact plate (20) and the third contact plate (25) close to the inner box body (19).

4. A primary frequency modulation function test device according to claim 1, characterized in that: The support assembly includes a gear (11) and a second mounting column (18), wherein the gear (11) and the second mounting column (18) are rotatably mounted on both sides of the outer box body (1), and the gear (11) and the second mounting column (18) are coaxially arranged. The outer periphery of the second mounting column (18) is fixedly connected with a second connecting rod (5), and the end of the second mounting column (18) away from the outer box body (1) is fixedly mounted with a first mounting column (12) coaxial with the gear (11), and the outer periphery of the first mounting column (12) is fixedly connected with a first connecting rod (2), and a connecting plate (3) is fixedly connected between the end of the first connecting rod (2) away from the first mounting column (12) and the end of the second connecting rod (5) away from the second mounting column (18).

5. A primary frequency modulation function test device according to claim 4, characterized in that: Resistance blocks (4) are fixedly mounted on the outer surface of the connecting plate (3) near both ends.

6. A primary frequency modulation function test device according to claim 4, characterized in that: The adjustment assembly comprises a screw rod (7) threadedly penetrating the connecting rod 1 (2) at the midline position of the side of the connecting plate (3); a knob (8) is fixedly mounted on one end of the screw rod (7) away from the outer box body (1); and the other end of the screw rod (7) is rotatably connected to the box cover (6); Two slide bars (9) symmetrically distributed about the screw rod (7) are also slidably passed through the outer side of the connecting plate (3). A stopper (10) is fixedly installed on one end of the slide bar (9) away from the outer box body (1), and the other end of the slide bar (9) is fixedly connected to the box cover (6).

7. A primary frequency modulation function test device according to claim 4, characterized in that: The locking assembly includes a convex plate (13), the convex plate (13) is fixedly mounted on the side of the outer box (1), and the convex plate (13) and the gear (11) are located on the same side of the outer box (1), and the convex plate (13) is arranged directly above the gear (11); A slide plate (14) is slidably mounted on the top surface of the protruding plate (13), a latching tooth (17) for use with the gear (11) is fixedly mounted on the bottom end of the slide plate (14), and mounting seats (15) are fixedly connected to both sides of the protruding plate (13) near the top, and a spring (16) is fixedly connected between the bottom surface of the mounting seat (15) and the top surface of the protruding plate (13); Under the elastic force of the spring (16), the latching teeth (17) are in elastic extrusion contact with the periphery of the gear (11).

8. A primary frequency modulation function test device according to claim 1, characterized in that: The outer surface of the outer box body (1) is covered with a layer of protective pad.

9. The primary frequency modulation function test device according to claim 1, characterized in that: The outer box (1) is made of metal material.

10. The primary frequency modulation function test device according to claim 1, characterized in that: The rear end surface of the outer box body (1) is provided with heat dissipation holes (27).

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