Height adjusting mechanism for grounding tester

Abstract

The utility model relates to the technical field of height adjustment of grounding testers, and discloses a height adjusting mechanism for a grounding tester, which comprises a fixed seat, the top of the fixed seat is fixedly connected with a fixed sleeve, and through an arranged limiting lifting mechanism, a wrench is manually pulled upwards before the lifting of the height adjusting mechanism, and the height adjusting mechanism can adjust the height of the grounding tester. Then, a motor is started, the height is adjusted to be proper according to requirements, after the height is adjusted to be proper, the wrench is manually reset, the first clamping column and the second clamping column are synchronously driven to reset, the first clamping column and the second clamping column abut against the interior of a limiting column groove, and then the lifting sleeve is fixed. Therefore, the lifting sleeve is prevented from moving upwards or downwards when a subsequent worker is mistakenly shocked, the locking effect is achieved, meanwhile, collision with the worker or other equipment in the lifting process is avoided, and the overall safety of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of height adjustment technology for grounding testers, specifically a height adjustment mechanism for grounding testers. Background Technology

[0002] Grounding resistance is an important indicator for evaluating the grounding performance of electrical equipment and systems. Good grounding performance can ensure personal safety, prevent equipment damage, and ensure the stable operation of the power system. Therefore, grounding testing plays a vital role in many industries such as power, post and telecommunications, railway, communications, and mining. Traditional grounding testers often have problems such as inconvenient operation and limited testing accuracy, especially since the height of the tester needs to be adjusted during the testing process.

[0003] In existing technology, the device uses a motor to drive a screw to rotate, which in turn moves the lifting rod up and down, thereby adjusting the overall height of the device to facilitate use by workers of different heights. However, in actual use, and when a worker accidentally touches the switch and causes the lifting rod to move unintentionally, it cannot prevent the lifting rod from accidentally lowering or raising during use. This could also lead to collisions with operators or other equipment, causing personal injury or equipment damage. Especially when using a grounding tester, the operator may be in contact with other parts of the equipment, and unrestricted raising and lowering movements will greatly increase the safety risks. Therefore, there is a need to improve the height adjustment mechanism for a grounding tester. Utility Model Content

[0004] The purpose of this invention is to provide a height adjustment mechanism for a grounding tester to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a height adjustment mechanism for a grounding tester, including a fixed base, a fixed sleeve fixedly connected to the top of the fixed base, a battery pack fixedly connected to the top of the fixed base, a button fixedly connected to the front of the fixed sleeve, a limit lifting mechanism provided inside the fixed sleeve, a fixed mechanism provided on the top of the limit lifting mechanism, and a grounding tester body provided on the top of the fixed mechanism.

[0006] The limiting lifting mechanism includes a limiting component and a lifting component, wherein the lifting component is disposed at the bottom of the limiting component;

[0007] The limiting component includes a limiting sleeve 1, which is fixedly connected to the top of a fixed sleeve. A wrench is rotatably connected to the top of the limiting sleeve 1, and connecting rods are rotatably connected to the front and rear sides of the wrench. A locking post 1 is rotatably connected to the end of the connecting rod away from the wrench. A limiting post 1 is fixedly connected to the bottom of the locking post 1. An adjusting frame is movably connected to the outside of the limiting post 1, and a limiting post 2 is movably connected to the inside of the adjusting frame. A pull rod is fixedly connected to the top of the limiting post 2, and a locking post 2 is fixedly connected to the front of the pull rod. The limiting sleeve 2 is fixedly connected to the top of the fixed sleeve, which helps to prevent the motor from accidentally driving the lifting sleeve to move up and down, thereby achieving a limiting function.

[0008] Preferably, the first locking pin is slidably connected to the inner side of the first limiting sleeve, and the second locking pin is slidably connected to the inner side of the second limiting sleeve, so as to facilitate the synchronous movement of the first locking pin and the second locking pin relative to each other.

[0009] Preferably, the adjusting frame has a groove at the position corresponding to the first limiting post, and the first limiting post is movably connected in the groove. The adjusting frame also has a groove at the position corresponding to the second limiting post, and the second limiting post is movably connected in the groove. The adjusting frame is rotatably connected to the top of the fixed sleeve, which facilitates the rotation of the adjusting frame.

[0010] Preferably, the lifting assembly includes a motor, which is fixedly connected to the front of the fixed sleeve. A bevel gear one is fixedly connected to the output end of the motor. A bevel gear two meshes with the top of the bevel gear one. A screw one is fixedly connected to the top of the bevel gear two. The screw one is externally threaded to the lifting sleeve. Limiting grooves are provided on the left and right sides of the lifting sleeve to facilitate adjustment of the overall height of the device.

[0011] Preferably, the second bevel gear is rotatably connected inside the fixed sleeve, and the lifting sleeve is slidably connected inside the fixed sleeve, with the top of the lifting sleeve abutting against the bottom of the first and second locking posts, facilitating the movement of the lifting sleeve.

[0012] Preferably, the fixing mechanism includes a placement frame, which is fixedly connected to the top of the lifting sleeve. A handle is rotatably connected to the right side of the placement frame, and a bidirectional screw is fixedly connected to the left side of the handle. A clamping plate is threaded onto the outside of the bidirectional screw, and a guide post is fixedly connected inside the placement frame to facilitate fixing the grounding tester body and thus facilitate disassembly.

[0013] Preferably, the clamping plate is slidably connected to the outside of the guide post, and the bidirectional screw is rotatably connected to the inside of the placement frame. The left and right sides of the grounding tester body are in contact with the outside of the clamping plate, which facilitates the relative movement of the clamping plates on both sides.

[0014] Compared with the prior art, this utility model provides a height adjustment mechanism for a grounding tester, which has the following beneficial effects:

[0015] 1. This grounding tester uses a height adjustment mechanism. Through a set limit lifting mechanism, before lifting, manually pulling the wrench upwards causes the locking posts one and two to simultaneously disengage from the lifting sleeve, thus releasing the lifting sleeve's fixation. Then, the motor is started, and the appropriate height is adjusted as needed. After adjusting to the appropriate height, manually resetting the wrench causes the locking posts one and two to abut against the limit post grooves, preventing the lifting sleeve from moving upwards or downwards if personnel accidentally touch the motor, thus providing a locking function. Simultaneously, it prevents collisions with personnel or other equipment during lifting, further improving the overall safety of the device.

[0016] 2. The grounding tester uses a height adjustment mechanism. Through the fixed mechanism, when it is necessary to disassemble the main body of the grounding tester, the handle is turned manually. The handle drives the bidirectional screw to rotate, and the bidirectional screw synchronously drives the two side clamps to gradually detach from the two sides of the grounding tester main body, thereby releasing the fixation of the grounding tester main body and making it easier for the staff to disassemble the grounding tester main body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the external structure of the limiting lifting mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the rear view unfolded structure of the limiting component of this utility model;

[0021] Figure 4 This is a schematic diagram of the unfolded structure of the lifting component of this utility model;

[0022] Figure 5 This is a schematic diagram of the unfolded structure of the fixing mechanism of this utility model.

[0023] In the diagram: 1. Mounting base; 2. Mounting sleeve; 3. Battery pack; 4. Button; 5. Limit lifting mechanism;

[0024] 6. Fixing mechanism; 7. Grounding tester body; 51. Limiting component; 52. Lifting component; 511. Limiting sleeve one; 512. Wrench; 513. Connecting rod; 514. Locking post one; 515. Limiting post one; 516. Adjusting frame; 517. Limiting post two; 518. Pull rod; 519. Limiting sleeve two; 5110. Locking post two; 521. Motor; 522. Bevel gear one; 523. Bevel gear two; 524. Screw one; 525. Lifting sleeve; 526. Limiting groove; 61. Placement frame; 62. Handle; 63. Bidirectional screw; 64. Clamping plate; 65. Guide post. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1:

[0028] Given the current technology, and considering that accidental activation of the lifting mast by a worker could lead to unintended descent or elevation during use, it is impossible to prevent such incidents. This could result in collisions with operators or other equipment, causing personal injury or equipment damage. This is particularly problematic when using a grounding tester, as operators may be in contact with other parts of the equipment. Unrestricted lifting motion significantly increases the safety risks. Please refer to [link to relevant documentation]. Figure 1-5 This utility model provides a technical solution: a height adjustment mechanism for a grounding tester, including a fixed base 1, a fixed sleeve 2 fixedly connected to the top of the fixed base 1, a battery pack 3 fixedly connected to the top of the fixed base 1, a button 4 fixedly connected to the front of the fixed sleeve 2, a limit lifting mechanism 5 provided inside the fixed sleeve 2, a fixed mechanism 6 provided on the top of the limit lifting mechanism 5, and a grounding tester body 7 provided on the top of the fixed mechanism 6.

[0029] The limiting lifting mechanism 5 includes a limiting component 51 and a lifting component 52, with the lifting component 52 located at the bottom of the limiting component 51;

[0030] The limiting component 51 includes a limiting sleeve 511, which is fixedly connected to the top of the fixed sleeve 2. A wrench 512 is rotatably connected to the top of the limiting sleeve 511. A connecting rod 513 is rotatably connected to the front and rear sides of the wrench 512. A locking post 514 is rotatably connected to the end of the connecting rod 513 away from the wrench 512. A limiting post 515 is fixedly connected to the bottom of the locking post 514. An adjusting frame 516 is movably connected to the outside of the limiting post 515. A limiting post 517 is movably connected to the inside of the adjusting frame 516. A pull rod 518 is fixedly connected to the top of the limiting post 517. A locking post 5110 is fixedly connected to the front of the pull rod 518. A limiting sleeve 519 is fixedly connected to the top of the fixed sleeve 2, which helps to prevent the motor 521 from accidentally driving the lifting sleeve 525 to move up and down, thereby playing a limiting role.

[0031] Furthermore, the first locking post 514 is slidably connected to the inside of the first limiting sleeve 511, and the second locking post 5110 is slidably connected to the inside of the second limiting sleeve 519, so as to synchronously drive the first locking post 514 and the second locking post 5110 to move relative to each other.

[0032] Furthermore, a groove is provided at the corresponding position of the adjusting frame 516 and the first limiting post 515, and the first limiting post 515 is movably connected in the groove. A groove is also provided at the corresponding position of the adjusting frame 516 and the second limiting post 517, and the second limiting post 517 is movably connected in the groove. The adjusting frame 516 is rotatably connected to the top of the fixed sleeve 2, which facilitates the rotation of the adjusting frame 516.

[0033] Furthermore, the lifting assembly 52 includes a motor 521, which is fixedly connected to the front of the fixed sleeve 2. A bevel gear 522 is fixedly connected to the output end of the motor 521. A bevel gear 523 meshes with the top of the bevel gear 522. A screw 524 is fixedly connected to the top of the bevel gear 523. A lifting sleeve 525 is threaded onto the outside of the screw 524. Limiting grooves 526 are provided on the left and right sides of the lifting sleeve 525 to facilitate adjustment of the overall height of the device.

[0034] Furthermore, the second bevel gear 523 is rotatably connected inside the fixed sleeve 2, and the lifting sleeve 525 is slidably connected inside the fixed sleeve 2. The top of the lifting sleeve 525 abuts against the bottom of the first locking post 514 and the second locking post 5110, which facilitates the movement of the lifting sleeve 525.

[0035] Example 2:

[0036] Based on the existing technology's requirement to fix the main body 7 of the grounding tester, please refer to... Figure 5Furthermore, in conjunction with Embodiment 1, the fixing mechanism 6 includes a placement frame 61, which is fixedly connected to the top of the lifting sleeve 525. A handle 62 is rotatably connected to the right side of the placement frame 61, and a bidirectional screw 63 is fixedly connected to the left side of the handle 62. A clamping plate 64 is threadedly connected to the outside of the bidirectional screw 63, and a guide post 65 is fixedly connected inside the placement frame 61 to facilitate fixing the grounding tester body 7, thereby facilitating disassembly.

[0037] Furthermore, the clamping plate 64 is slidably connected to the outside of the guide post 65, and the bidirectional screw 63 is rotatably connected to the inside of the placement frame 61. The left and right sides of the grounding tester body 7 abut against the outside of the clamping plate 64, which facilitates the relative movement of the clamping plates 64 on both sides.

[0038] In actual operation, when the device is used, firstly, move the device to the designated position. According to the required height, before raising or lowering, manually pull the wrench 512 upwards via the set limit lifting mechanism 5. This wrench 512 synchronously moves the connecting rod 513, which in turn moves the locking pin 514. During the movement of the locking pin 514, the limit pin 515 moves synchronously, which in turn moves the adjusting frame 516. This adjusting frame 516 then synchronously moves the limit pin 517, which in turn pulls the moving rod 518. The pull rod 518 synchronously drives the second locking pin 5110 to move, thereby causing the first locking pin 514 and the second locking pin 5110 to simultaneously disengage from the lifting sleeve 525, thus releasing the lifting sleeve 525 from its fixation. Subsequently, the motor 521 is started, which drives the first bevel gear 522 to rotate, which in turn drives the second bevel gear 523 to rotate, which in turn drives the first screw 524 to rotate, causing the first screw 524 to synchronously drive the lifting sleeve 525 to move upward, which in turn synchronously drives the grounding tester body 7 set at the top to move upward. The height can then be adjusted to a suitable level as needed, and after adjusting to a suitable level, it can be manually... The reset wrench 512 is activated, which in turn simultaneously resets the locking pins 514 and 5110, causing them to insert into the corresponding limiting grooves 526 of the lifting sleeve 525. This creates contact between the locking pins 514 and 5110 and the limiting grooves, preventing the lifting sleeve 525 from moving upwards or downwards should an operator accidentally touch the motor 521. This provides a locking function and prevents collisions with personnel or other equipment during lifting, further improving the overall safety of the device. Furthermore, the fixed mechanism 6 allows for easy removal of the grounding test device. When testing the main body 7, the handle 62 is manually rotated, which drives the bidirectional screw 63 to rotate. The bidirectional screw 63 then drives the clamps 64 on both sides to gradually detach from the sides of the grounding tester main body 7, thereby releasing the fixation of the grounding tester main body 7. The working principle and specific structure of the grounding tester main body are mature technologies in the existing technology. The grounding tester main body applies a known voltage or current signal to the grounding device, then measures the voltage drop or current value on the grounding device, and calculates the grounding resistance value by combining Ohm's law (R=U / I, where R is resistance, U is voltage, and I is current).

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A height adjustment mechanism for a grounding tester, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is fixedly connected to the fixed sleeve (2), the top of the fixed base (1) is fixedly connected to the battery pack (3), the front of the fixed sleeve (2) is fixedly connected to the button (4), the fixed sleeve (2) is provided with a limit lifting mechanism (5), the top of the limit lifting mechanism (5) is provided with a fixing mechanism (6), and the top of the fixing mechanism (6) is provided with the grounding tester body (7). The limiting lifting mechanism (5) includes a limiting component (51) and a lifting component (52), wherein the lifting component (52) is disposed at the bottom of the limiting component (51); The limiting component (51) includes a limiting sleeve one (511), which is fixedly connected to the top of the fixed sleeve (2). A wrench (512) is rotatably connected to the top of the limiting sleeve one (511). A connecting rod (513) is rotatably connected to the front and rear sides of the wrench (512). A locking post one (514) is rotatably connected to the end of the connecting rod (513) away from the wrench (512). A limiting post one (515) is fixedly connected to the bottom of the locking post one (514). An adjusting frame (516) is movably connected to the outside of the limiting post one (515). A limiting post two (517) is movably connected to the inside of the adjusting frame (516). A pull rod (518) is fixedly connected to the top of the limiting post two (517). A locking post two (5110) is fixedly connected to the front of the pull rod (518). A limiting sleeve two (519) is fixedly connected to the top of the fixed sleeve (2).

2. The height adjustment mechanism for a grounding tester according to claim 1, characterized in that: The first locking post (514) is slidably connected to the inside of the first limiting sleeve (511), and the second locking post (5110) is slidably connected to the inside of the second limiting sleeve (519).

3. The height adjustment mechanism for a grounding tester according to claim 1, characterized in that: The adjusting frame (516) has a groove at the corresponding position of the limiting post one (515), and the limiting post one (515) is movably connected in the groove. The adjusting frame (516) has a groove at the corresponding position of the limiting post two (517), and the limiting post two (517) is movably connected in the groove. The adjusting frame (516) is rotatably connected to the top of the fixed sleeve (2).

4. The height adjustment mechanism for a grounding tester according to claim 1, characterized in that: The lifting assembly (52) includes a motor (521), which is fixedly connected to the front of the fixed sleeve (2). A bevel gear (522) is fixedly connected to the output end of the motor (521). A bevel gear (523) meshes with the top of the bevel gear (522). A screw (524) is fixedly connected to the top of the bevel gear (523). A lifting sleeve (525) is externally threaded onto the screw (524). Limiting grooves (526) are provided on the left and right sides of the lifting sleeve (525).

5. The height adjustment mechanism for a grounding tester according to claim 4, characterized in that: The second bevel gear (523) is rotatably connected inside the fixed sleeve (2), and the lifting sleeve (525) is slidably connected inside the fixed sleeve (2), with the top of the lifting sleeve (525) abutting against the bottom of the first locking post (514) and the second locking post (5110).

6. The height adjustment mechanism for a grounding tester according to claim 4, characterized in that: The fixing mechanism (6) includes a placement frame (61), which is fixedly connected to the top of the lifting sleeve (525). A handle (62) is rotatably connected to the right side of the placement frame (61), and a bidirectional screw (63) is fixedly connected to the left side of the handle (62). A clamping plate (64) is threaded to the outside of the bidirectional screw (63), and a guide post (65) is fixedly connected inside the placement frame (61).

7. The height adjustment mechanism for a grounding tester according to claim 6, characterized in that: The clamping plate (64) is slidably connected to the outside of the guide post (65), and the bidirectional screw (63) is rotatably connected to the inside of the placement frame (61), and the left and right sides of the grounding tester body (7) abut against the outside of the clamping plate (64).

Images