Transmission structure of insulation resistance meter

Abstract

The utility model relates to the technical field of insulation resistance meter equipment, in particular to an insulation resistance meter transmission structure, which comprises a bottom plate. A side plate is mounted at the upper end of the bottom plate in a clamped mode through mounting holes, a connecting groove is formed in the surface of the bottom plate, a connecting rod is rotationally connected into the connecting groove, a mounting plate is arranged at the lower end of the connecting rod, a positioning rod is fixedly mounted at the lower end of the mounting plate, and a mounting seat is rotationally connected to the outer portion of the surface of the positioning rod. Clamping plates are fixedly mounted on the left and right sides of the upper end of the surface of the mounting seat, and a rocker arm is fixedly mounted at the lower end of the positioning rod. When the insulation resistance meter is stored or carried, the control panel can synchronously move along with the sliding block by pushing the sliding block, the purpose of taking the pushing block out of the bayonet is achieved, then the whole rocker structure is taken down, the operation of separating the insulation resistance meter from the rocker is completed, and therefore the insulation resistance meter can be conveniently stored or carried by a worker.

Description

Technical Field

[0001] This utility model relates to the technical field of insulation resistance meter equipment, and in particular to a transmission structure for an insulation resistance meter. Background Technology

[0002] An insulation resistance meter, also known as a megohmmeter or ohmmeter, is a portable instrument specifically designed for measuring the insulation resistance of electrical circuits and various electrical equipment. The working principle of an insulation resistance meter is based on Ohm's law, and it basically consists of a measuring circuit, a DC voltage generator, and a transmission structure.

[0003] Existing insulation resistance meters all convert mechanical energy into electrical energy through a transmission structure by hand-cranking a rocker arm. However, the rocker arm of existing insulation resistance meters is part of the transmission structure, which often makes it difficult to store or carry the insulation resistance meter because the rocker arm protrudes. At the same time, most existing transmission structures directly connect the rocker arm to the transmission wheel without a buffer device, which can easily cause the transmission belt to fall off or the transmission wheel to be damaged when the rotation speed is too high.

[0004] Therefore, in view of the problems of the existing insulation resistance meter transmission structure, such as the protruding rocker arm making it inconvenient to store or carry, and the lack of a buffering and slowing device due to the direct connection of the rocker arm to the transmission wheel, which easily leads to the transmission belt falling off or the transmission wheel being damaged, this utility model can separate the rocker arm device from the insulation resistance meter through a slider, a clamping plate, a connecting rod, and a mounting plate, making it easier to store or carry. At the same time, by installing additional gears and gear rings as a slowing device, the problems of damage to the direct connection of the rocker arm to the transmission wheel and the transmission belt falling off are avoided. Utility Model Content

[0005] To overcome the common problems of insulation resistance meter transmission structure, which makes the meter inconvenient to store or carry, and the potential for damage to the transmission wheel or detachment of the transmission belt due to the direct connection of the rocking structure to the transmission wheel.

[0006] The technical solution of this utility model is as follows: an insulation resistance meter transmission structure, including a base plate; a side plate is installed on the upper end of the base plate through a mounting hole; a connecting groove is opened on the surface of the base plate; a connecting rod is rotatably connected in the connecting groove; a mounting plate is provided at the lower end of the connecting rod; a positioning rod is fixedly installed at the lower end of the mounting plate; a mounting seat is rotatably connected to the outer surface of the positioning rod; a locking plate is fixedly installed on both the left and right sides of the upper surface of the mounting seat; a rocker arm is fixedly installed at the lower end of the positioning rod; and a rocker arm is installed at the lower end of the surface of the rocker arm.

[0007] Preferably, the lower surface of the base plate is provided with an installation groove, and there are two installation grooves. The installation grooves and the clamping plates correspond to each other. The surface of the clamping plates is provided with a locking slot. The interior of the base plate is provided with a fixing groove located on the side of the installation groove. The fixing groove and the installation groove are interconnected.

[0008] Preferably, a control plate is slidably connected in the fixing groove, a push block is fixedly installed at one end of the control plate, a spring assembly is fixedly installed at the other end of the control plate, the end of the spring assembly away from the control plate is fixedly connected to the base plate, and the push block is engaged with the bayonet.

[0009] Preferably, the surface of the base plate is provided with a sliding groove, in which a slider is slidably connected. The slider is fixedly connected to the control plate, and a baffle is fixedly installed on the lower end of the control plate near the spring assembly. The size of the baffle is larger than the size of the sliding groove.

[0010] Preferably, a connecting column is rotatably connected to the upper right side of the base plate, a gear ring is fixedly installed on the surface of the connecting column, and a gear is fixedly installed at the upper end of the connecting rod, with the gear and the gear ring meshing together.

[0011] Preferably, a first transmission wheel is fixedly installed at the upper end of the connecting column, a DC voltage motor is fixedly installed on the surface of the side plate, and a second transmission wheel is fixedly installed at the lower end of the DC voltage motor. The second transmission wheel and the first transmission wheel are connected by a transmission belt.

[0012] Preferably, the lower end of the connecting rod has a cross-shaped limiting groove, the mounting plate has a cross-shaped design, and the connecting rod and the positioning rod are engaged with the cross-shaped limiting groove through the mounting plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. By setting up a locking plate, a locking slot, and a push block, when storing or carrying the insulation resistance meter, the control board can be moved synchronously with the slider by pushing the slider, so as to remove the push block from the locking slot. Then, the entire rocker structure can be removed to separate the insulation resistance meter from the rocker, which is convenient for personnel to store or carry. When the insulation resistance meter needs to be used, the mounting plate is aligned with the cross limit slot and inserted, so that the locking plate is inserted into the mounting slot synchronously. At the same time, the locking plate presses the push block back. After it is fully inserted, the spring group resets and drives the push block to move and engage the push block with the locking slot, which is convenient for personnel to use and increases convenience.

[0015] 2. By engaging the mounting plate and connecting rod, and by fixing the connecting rod and gear together, when the rocker arm is rocked, the transmission structure first transmits mechanical energy to the gear ring through the gear, and then the gear ring transmits it to the first transmission wheel. This avoids the rocker arm structure being directly connected to the first transmission wheel, which could cause the first transmission wheel to move too fast and result in damage or the transmission belt falling off. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural illustration of the present invention.

[0017] Figure 2 This utility model is shown. Figure 1 Schematic diagram of the flipped and combined three-dimensional structure;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the mounting rod and mounting plate combination of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural diagram of the installation rod and installation plate of this utility model separated.

[0020] Figure 5 The diagram shown is a cross-sectional three-dimensional structural diagram of the base plate of this utility model;

[0021] Figure 6 The diagram shown is a three-dimensional structural diagram of the base plate and mounting base combination of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Mounting hole; 3. Side plate; 4. Connecting groove; 5. Connecting rod; 6. Mounting plate; 7. Positioning rod; 8. Mounting seat; 9. Rocker arm; 10. Rocker arm; 11. Mounting groove; 12. Fixing groove; 13. Slide groove; 14. Connecting column; 15. First transmission wheel; 16. Transmission belt; 31. DC voltage motor; 32. Second transmission wheel; 51. Gear; 52. Cross limit groove; 81. Clamping plate; 82. Clamping slot; 121. Control plate; 122. Push block; 123. Spring assembly; 124. Baffle; 131. Slider; 141. Gear ring. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-2This utility model provides a technical solution: an insulation resistance meter transmission structure, including a base plate 1; a side plate 3 is installed on the upper end of the base plate 1 through a mounting hole 2; a connecting groove 4 is opened on the surface of the base plate 1; a connecting rod 5 is rotatably connected in the connecting groove 4; a mounting plate 6 is provided at the lower end of the connecting rod 5; a positioning rod 7 is fixedly installed at the lower end of the mounting plate 6; a mounting seat 8 is rotatably connected to the outer surface of the positioning rod 7; a clamping plate 81 is fixedly installed on both the left and right sides of the upper surface of the mounting seat 8; a rocker arm 9 is fixedly installed at the lower end of the positioning rod 7; and a rocker arm 10 is installed at the lower end of the surface of the rocker arm 9.

[0025] Please see Figures 2-3 The lower surface of the base plate 1 has two mounting grooves 11, which correspond to the mounting plate 81. The surface of the mounting plate 81 has a locking slot 82. The interior of the base plate 1 has a fixing groove 12 located on the side of the mounting groove 11, and the fixing groove 12 is connected to the mounting groove 11. By setting the mounting groove 11, the mounting base 8 can be removed from the base plate 1, which facilitates the storage or carrying of the insulation resistance meter and improves convenience.

[0026] Please see Figures 5-6 A control plate 121 is slidably connected in the fixed groove 12. A push block 122 is fixedly installed at one end of the control plate 121, and a spring assembly 123 is fixedly installed at the other end of the control plate 121. The end of the spring assembly 123 away from the control plate 121 is fixedly connected to the base plate 1. The push block 122 is engaged with the bayonet 82. By setting the control plate 121, the push block 122 moves synchronously with the control plate 121. By setting the spring assembly 123, the push block 122 is automatically reset, and the push block 122 is engaged with the bayonet 82.

[0027] Please see Figure 2 , Figure 5 and Figure 6 The base plate 1 has a groove 13 on its surface, and a slider 131 is slidably connected in the groove 13. The slider 131 is fixedly connected to the control plate 121. A baffle 124 is fixedly installed on the lower end of the control plate 121 near the spring assembly 123. The size of the baffle 124 is larger than the size of the groove 13. By sliding the slider 131, the control plate 121 is moved synchronously to control the engagement of the push block 122 and the locking plate 81. By installing the baffle 124 on the control plate 121, the baffle 124 closes the slide opening, preventing dust and dirt from entering the insulation resistance meter.

[0028] Please see Figures 1-3A connecting column 14 is rotatably connected to the upper right side of the base plate 1. A gear ring 141 is fixedly installed on the surface of the connecting column 14. A gear 51 is fixedly installed on the upper end of the connecting rod 5, and the gear 51 and the gear ring 141 are meshed together. By connecting the connecting rod 5 and the mounting plate 6, when the rocker arm 10 is shaken, the rocker arm 9 drives the positioning rod 7 to rotate, thereby controlling the rotation of the connecting rod 5, which in turn drives the gear ring 141, which is meshed with the gear 51, to rotate, thus reducing the rotational speed.

[0029] Please see Figures 2-3 A first drive wheel 15 is fixedly mounted on the upper end of the connecting column 14, and a DC voltage motor 31 is fixedly mounted on the surface of the side plate 3. A second drive wheel 32 is fixedly mounted on the lower end of the DC voltage motor 31. The second drive wheel 32 and the first drive wheel 15 are connected by a drive belt 16. The connecting column 14 is driven to rotate by the toothed ring 141, which in turn drives the first drive wheel 15 to rotate synchronously. The second drive wheel 32 is then rotated by the drive belt 16, thereby enabling the DC voltage motor 31 to operate.

[0030] Please see Figures 3-4 A cross-shaped limiting groove 52 is provided on the lower end surface of the connecting rod 5. The mounting plate 6 is designed in a cross shape. The connecting rod 5 and the positioning rod 7 are connected by engaging the mounting plate 6 with the cross-shaped limiting groove 52. By providing a cross-shaped limiting groove 52 at the lower end of the connecting rod 5 and designing the mounting plate 6 in a cross shape, it is easy to engage the mounting plate 6 with the cross-shaped limiting groove 52, thus achieving the purpose of synchronously driving the connecting rod 5 to rotate with the positioning rod 7.

[0031] Working principle: According to Figures 1-6 When the insulation resistance meter is needed, the mounting plate 6 can be aligned with the cross-shaped limiting groove 52, and the locking plate 81 can be installed into the mounting groove 11 simultaneously. During installation, the locking plate 81 presses against the push block 122, causing the push block 122 to retract. After the locking plate 81 is fully inserted, the push block 122 returns to its original position and inserts into the bayonet 82 under the action of the spring assembly 123, thus realizing the installation connection between the mounting base 8 and the base plate 1. After installation, the rocker arm 9 is rotated by grasping the rocker arm 10, causing the positioning rod 7 to drive the mounting plate 6 to rotate simultaneously. This causes the mounting plate 6 to drive the connecting rod 5 to rotate, thereby achieving the purpose of using the rocking structure. When storing or carrying the insulation resistance meter, the slider 131 can be pressed, causing the slider 131 to slide along the slide groove 13. This causes the control plate 121 to drive the push block 122 to retract, and the push block 122 to be removed from the bayonet 82, thus completing the purpose of removing the rocking structure. This makes it convenient for personnel to carry or store the insulation resistance meter separately, increasing convenience.

[0032] according to Figures 1-4When using this insulation resistance meter, shaking the rocker arm 9 causes the positioning rod 7 to synchronously drive the mounting plate 6 to rotate, thereby causing the connecting rod 5, which engages with the mounting plate 6, to synchronously rotate the gear 51. This, in turn, causes the gear ring 141, which meshes with the gear 51, to drive the connecting column 14 to rotate. The connecting column 14 then drives the first transmission wheel 15, which is fixedly mounted on its upper end, to rotate. Subsequently, under the action of the transmission belt 16, the first transmission wheel 15 drives the second transmission wheel 32 to rotate, thereby controlling the DC voltage motor 31 to work, converting mechanical energy into electrical energy to achieve the purpose of energy transmission. Furthermore, the action of the gear 51 and the gear ring 141 slows down the overall rotational speed, avoiding the problems of the transmission belt 16 detaching and the first transmission wheel 15 potentially being damaged due to the direct connection of the connecting rod 5 to the first transmission wheel 15.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transmission structure for an insulation resistance meter, comprising a base plate (1); characterized in that: A side plate (3) is fitted onto the upper end of the base plate (1) through a mounting hole (2). A connecting groove (4) is provided on the surface of the base plate (1). A connecting rod (5) is rotatably connected in the connecting groove (4). A mounting plate (6) is provided at the lower end of the connecting rod (5). A positioning rod (7) is fixedly installed at the lower end of the mounting plate (6). A mounting seat (8) is rotatably connected to the outer surface of the positioning rod (7). A clamping plate (81) is fixedly installed on both the left and right sides of the upper surface of the mounting seat (8). A rocker arm (9) is fixedly installed at the lower end of the positioning rod (7). A rocker arm (10) is installed at the lower end of the surface of the rocker arm (9).

2. The transmission structure of an insulation resistance meter according to claim 1, characterized in that: The bottom surface of the base plate (1) is provided with an installation groove (11), and there are two installation grooves (11). The installation grooves (11) and the clamping plate (81) correspond to each other. The surface of the clamping plate (81) is provided with a slot (82). The inside of the base plate (1) is provided with a fixing groove (12) located on the side of the installation groove (11). The fixing groove (12) and the installation groove (11) are connected to each other.

3. The transmission structure of an insulation resistance meter according to claim 2, characterized in that: A control plate (121) is slidably connected in the fixed groove (12). A push block (122) is fixedly installed at one end of the control plate (121), and a spring assembly (123) is fixedly installed at the other end of the control plate (121). The end of the spring assembly (123) away from the control plate (121) is fixedly connected to the base plate (1). The push block (122) is engaged with the bayonet (82).

4. The transmission structure of an insulation resistance meter according to claim 3, characterized in that: The base plate (1) has a groove (13) on its surface. A slider (131) is slidably connected in the groove (13). The slider (131) is fixedly connected to the control plate (121). A baffle (124) is fixedly installed on the lower end of the control plate (121) near the spring assembly (123). The size of the baffle (124) is larger than the size of the groove (13).

5. The transmission structure of an insulation resistance meter according to claim 1, characterized in that: A connecting column (14) is rotatably connected to the upper right side of the base plate (1). A toothed ring (141) is fixedly installed on the surface of the connecting column (14). A gear (51) is fixedly installed on the upper end of the connecting rod (5). The gear (51) and the toothed ring (141) are meshed together.

6. The transmission structure of an insulation resistance meter according to claim 5, characterized in that: The upper end of the connecting column (14) is fixedly installed with a first transmission wheel (15), the surface of the side plate (3) is fixedly installed with a DC voltage motor (31), the lower end of the DC voltage motor (31) is fixedly installed with a second transmission wheel (32), and the second transmission wheel (32) and the first transmission wheel (15) are connected by a transmission belt (16).

7. The transmission structure of an insulation resistance meter according to claim 1, characterized in that: The lower end of the connecting rod (5) is provided with a cross-shaped limiting groove (52), the mounting plate (6) is designed in a cross shape, and the connecting rod (5) and the positioning rod (7) are engaged with the cross-shaped limiting groove (52) through the mounting plate (6).

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