CN218037061U - Loop resistance tester with protection function - Google Patents

Abstract

The utility model discloses a return circuit resistance tester with protect function, including placing board and buffering subassembly, place the both sides of board bottom and all install the universal wheel, place one side fixedly connected with push rod of board, the upper surface of placing the board extends to inside and has seted up the standing groove, the top movable mounting who places the board has return circuit resistance tester body, dustproof subassembly is installed at the top of return circuit resistance tester body, the equal movable mounting in both sides of return circuit resistance tester body has ventilative subassembly. The utility model discloses an install the buffering subassembly, when the return circuit resistance tester contacts with the face of placing, can drive the buffer beam and remove in the installation cavity, the buffer beam removes and drives the fly leaf and remove, and the fly leaf removes and makes the spring produce deformation, can utilize the elasticity of spring, can effectively slow down the impact force that the return circuit resistance tester received to reach the purpose of protection return circuit resistance tester internal element.

Description

Loop resistance tester with protection function

Technical Field

The utility model relates to a resistance tester equipment technical field specifically is a loop resistance tester with protect function.

Background

The loop resistance tester is suitable for testing the contact resistance value of a main contact of a high-low voltage switch, the direct current resistance value of a high-low voltage cable line and the like, the loop resistance tester adopts 100A constant current output, the highest output voltage reaches 10V and can adopt a test line with a thin loading surface, the labor intensity of field testers is greatly reduced, the test process is automatically implemented by single chip control, the precision is high, the retest performance is good, the single key operation is realized, the operation is simple and easy, the test data is displayed by liquid crystal, the tester is suitable for different working environments, a 100A/200A switch power supply is arranged in the tester, so that the constant current 100A two sets of loop real-time tracking tests are realized, the test result is correct, the tester is designed by combining a digital circuit technology and a switch power supply technology, the tester is suitable for measuring the contact resistance and the loop resistance of a switch control device, the test current is more than the direct current 100A recommended by national standard, and the existing loop resistance tester has many problems or defects in the use process:

traditional loop resistance tester is in-service use, because need often to the electrical engineering or the ground connection engineering in different places check and accept, need often carry loop resistance tester at the different places, but because the bottom of loop resistance tester does not have protection architecture, it can cause loop resistance tester and contact surface to produce the striking sometimes because placing the speed at the excessive speed to place the in-process, and the striking causes the inside electronic component of loop resistance tester to appear becoming flexible or damaging easily, thereby shorten the life of loop resistance tester, the bleeder vent has generally been seted up at the outer wall of loop resistance tester simultaneously, be convenient for the inside gas of loop resistance tester exchanges with the external world, lead to external dust to get into the inside of loop resistance tester easily like this, influence the normal work of loop resistance tester.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a loop resistance tester with protect function to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a return circuit resistance tester with protect function, is including placing board and buffering subassembly, the universal wheel is all installed to the both sides of placing the board bottom, one side fixedly connected with push rod of placing the board, the upper surface of placing the board extends to inside and has seted up the standing groove, the top movable mounting who places the board has return circuit resistance tester body, dustproof subassembly is installed at the top of return circuit resistance tester body, the equal movable mounting in both sides of return circuit resistance tester body has ventilative subassembly.

As a further aspect of the present invention: the buffer assembly comprises a mounting plate, the mounting plate is movably connected with the loop resistance tester body, the lower surface of the mounting plate is in threaded connection with a fixing bolt, a buffer rod is installed between the fixing bolts and fixedly connected with the mounting plate, an installation block is installed at the bottom of the buffer rod, a rubber pad is fixedly connected with the bottom of the installation block, an installation cavity is formed in the installation block, a movable plate is movably connected with the inside of the installation cavity, and the movable plate is fixedly connected with the buffer rod.

As a further aspect of the present invention: the outer wall of the two sides of the movable plate is connected with a vertical rod in a penetrating mode, the vertical rod is movably connected with the movable plate, a spring is sleeved on the surface of the vertical rod in a movable mode, the spring is fixedly connected with the movable plate, and a shock absorber is installed between the vertical rods.

As a further aspect of the present invention: the breathable assembly comprises a breathable pipe, a thread groove is formed in the top of the breathable pipe, the surface of the breathable pipe is connected with a filter plate in a penetrating mode, the filter plate is movably connected with the breathable pipe, the upper end of the filter plate is connected with a limiting screw in a penetrating mode, and the limiting screw is connected with the thread groove in a threaded mode.

As a further aspect of the present invention: the fixed stopper that is provided with in bottom of filter, the spacing groove has been seted up to the upper surface of stopper, and spacing groove and filter swing joint.

As a further aspect of the present invention: the dustproof assembly comprises a fixed plate and is fixedly connected with the loop resistance tester body, the upper surface of the fixed plate extends to the inside and is provided with a clamping groove, the clamping groove is clamped inside and provided with a clamping plate, and the top of the clamping plate is fixedly connected with a dustproof plate.

Compared with the prior art, the beneficial effects of the utility model are that: this loop resistance tester with protect function has following advantage:

(1) The buffer assembly is arranged, when the loop resistance tester is contacted with the placing surface, the buffer rod can be driven to move in the mounting cavity, the buffer rod moves to drive the movable plate to move, the movable plate moves to enable the spring to deform, the elasticity of the spring can be utilized, the impact force on the loop resistance tester can be effectively reduced, and therefore the purpose of protecting internal elements of the loop resistance tester is achieved;

(2) The ventilating assemblies are movably arranged on the two sides of the loop resistance tester body, the ventilating pipe is arranged, so that the exchange of gas inside the loop resistance tester and the outside is facilitated, the filter plate is arranged inside the ventilating pipe, external dust can be prevented from entering the loop resistance tester in the gas exchange process, meanwhile, after the filtering device is used for a period of time, the limiting screw is rotated until the limiting screw is separated from the thread groove, then the filter plate is pulled upwards until the lower end of the filter plate is separated from the limiting groove, the filter plate is also separated from the ventilating pipe, the filter plate is periodically taken down and cleaned, the filtering effect of the filtering device can be effectively guaranteed, and the problem that the conventional general ventilating holes are formed in the outer wall of the loop resistance tester, so that the exchange of gas inside the loop resistance tester and the outside is facilitated, the external dust is easily caused to enter the loop resistance tester, and the normal work of the loop resistance tester is influenced is solved;

(3) Install dustproof subassembly through the top at loop resistance tester body, through installing the dust guard, can prevent dust when loop resistance tester is not, moreover through the pulling dust guard, the dust guard rebound takes out in the draw-in groove until the cardboard, through being convenient for carry out the dismouting to the dust guard, can satisfy the user demand of different occasions.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A of the present invention;

FIG. 3 is an enlarged view of the point B of the present invention;

fig. 4 is an enlarged view of the position C of the present invention.

In the figure: 1. a loop resistance tester body; 2. a placement groove; 3. placing the plate; 4. a universal wheel; 5. a push rod; 6. a dust-proof component; 601. clamping a plate; 602. a card slot; 603. a dust guard; 604. a fixing plate; 7. a venting assembly; 701. a thread groove; 702. a limiting block; 703. a limit screw; 704. a filter plate; 705. a gas permeable pipe; 706. a limiting groove; 8. a buffer assembly; 801. mounting a plate; 802. a buffer rod; 803. mounting blocks; 804. a movable plate; 805. a mounting cavity; 806. fixing the bolt; 807. a vertical rod; 808. a spring; 809. a shock absorber; 810. and (7) a rubber pad.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention is described in detail below with reference to the accompanying drawings, and the description in this section is only exemplary and explanatory, and should not have any limiting effect on the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a loop resistance tester with a protection function comprises a placing plate 3 and a buffer assembly 8, wherein the buffer assembly 8 comprises a mounting plate 801, the mounting plate 801 is movably connected with a loop resistance tester body 1, a fixing bolt 806 is in threaded connection with the lower surface of the mounting plate 801, a buffer rod 802 is installed between the fixing bolts 806, the buffer rod 802 is fixedly connected with the mounting plate 801, a mounting block 803 is installed at the bottom of the buffer rod 802, a rubber pad 810 is fixedly connected with the bottom of the mounting block 803, a mounting cavity 805 is formed in the mounting block 803, a movable plate 804 is movably connected with the inside of the mounting cavity 805, the movable plate 804 is fixedly connected with the buffer rod 802, vertical rods 807 are connected to the outer walls of the two sides of the movable plate 804 in a penetrating mode, the vertical rods are movably connected with the movable plate 804, a spring 808 is sleeved on the surface of the vertical rods 807 in a movable mode, the spring 808 is fixedly connected with the movable plate 804, a shock absorber 809 is installed between the vertical rods 807, universal wheels 4 are installed on the two sides of the bottom of the placing plate 3, a push rod 5 is fixedly connected to one side of the placing plate 3, the upper surface of the placing plate 3 extends to the placing groove 2 is formed in the placing plate, and the top of the placing plate 3 is movably installed with the loop resistance tester body 1;

specifically, as shown in fig. 1 and 4, when in use, the buffering assembly 8 is installed, when the loop resistance tester is in contact with a placing surface, the buffering rod 802 is driven to move in the installation cavity 805, the buffering rod 802 moves to drive the movable plate 804 to move, the movable plate 804 moves to deform the spring 808, and the elasticity of the spring 808 can be utilized, so that the impact force applied to the loop resistance tester can be effectively reduced, thereby achieving the purpose of protecting the internal elements of the loop resistance tester;

the dustproof assembly 6 is installed at the top of the loop resistance tester body 1, the dustproof assembly 6 comprises a fixing plate 604, the fixing plate 604 is fixedly connected with the loop resistance tester body 1, the upper surface of the fixing plate 604 extends to the inside and is provided with a clamping groove 602, a clamping plate 601 is clamped inside the clamping groove 602, and the top of the clamping plate 601 is fixedly connected with a dustproof plate 603;

specifically, as shown in fig. 1 and 2, when in use, the dustproof assembly 6 is mounted at the top of the loop resistance tester body 1, and the dustproof plate 603 is mounted, so that dust can be prevented when the loop resistance tester is not used, and by pulling the dustproof plate 603, the dustproof plate 603 moves upwards until the clamping plate 601 is taken out of the clamping groove 602, and the dustproof plate 603 can be conveniently detached and mounted, so that the use requirements of different occasions can be met;

both sides of the loop resistance tester body 1 are movably provided with ventilating components 7, each ventilating component 7 comprises a ventilating pipe 705, the top of each ventilating pipe 705 is provided with a threaded groove 701, the surface of each ventilating pipe 705 is connected with a filter plate 704 in a penetrating manner, the filter plates 704 are movably connected with the ventilating pipes 705, the upper ends of the filter plates 704 are connected with limit screws 703 in a penetrating manner, the limit screws 703 are in threaded connection with the threaded grooves 701, the bottoms of the filter plates 704 are fixedly provided with limit blocks 702, the upper surfaces of the limit blocks 702 are provided with limit grooves 706, and the limit grooves 706 are movably connected with the filter plates 704;

specifically, as shown in fig. 1 and 3, when in use, the ventilating components 7 are movably mounted on both sides of the loop resistance tester body 1, the ventilating tube 705 is arranged to facilitate exchange between gas inside the loop resistance tester and the outside, and the filter plate 704 is mounted inside the ventilating tube 705, so that external dust can be prevented from entering the loop resistance tester during gas exchange, and after the loop resistance tester is used for a period of time, the filter plate 704 is pulled upwards until the limit screw 703 is separated from the thread groove 701, and the lower end of the filter plate 704 is separated from the limit groove 706, and the filter plate 704 is also separated from the ventilating tube 705.

The working principle is as follows: when the device is used, firstly, the buffer component 8 is installed, when the loop resistance tester is in contact with a placing surface, the buffer rod 802 is driven to move in the installation cavity 805, the buffer rod 802 moves to drive the movable plate 804 to move, the movable plate 804 moves to enable the spring 808 to deform, the impact force applied to the loop resistance tester can be effectively reduced by utilizing the elasticity of the spring 808, so that the purpose of protecting internal elements of the loop resistance tester is achieved, in addition, the installation plate 801 can be separated from the lower surface of the loop resistance tester by rotating the fixing bolt 806, so that the buffer component 8 can be separated from the loop resistance tester, and the practicability of the device can be effectively improved by the mode of facilitating disassembly and assembly;

secondly, the ventilating components 7 are movably mounted on the two sides of the loop resistance tester body 1, the ventilating pipe 705 is arranged, so that the exchange between the gas inside the loop resistance tester and the outside is facilitated, the filter plate 704 is mounted inside the ventilating pipe 705, external dust can be prevented from entering the loop resistance tester during the gas exchange process, after the loop resistance tester is used for a period of time, the limit screw 703 is rotated until the limit screw 703 is separated from the thread groove 701, then the filter plate 704 is pulled upwards until the lower end of the filter plate 704 is separated from the limit groove 706, the filter plate 704 is also separated from the ventilating pipe 705, and the filter plate 704 is periodically taken down for cleaning, so that the filtering effect of the loop resistance tester can be effectively ensured;

finally, install dustproof component 6 through the top at return circuit resistance tester body 1, through installing dust guard 603, can prevent dust when return circuit resistance tester is not, through pulling dust guard 603, dust guard 603 rebound takes out in card board 601 follow draw-in groove 602 in addition, through being convenient for carry out the dismouting to dust guard 603, can satisfy the user demand of different occasions.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means such as mature bolt, rivet, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional model in the prior art, the control mode is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of technicians in the field, and the present invention belongs to the common knowledge in the field, so the present invention does not explain the control mode and circuit connection in detail, and the peripheral controller mentioned in the specification can play a control role for the electric elements mentioned herein, and the peripheral controller is the conventional known equipment.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. It should be noted that there are infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that various improvements, decorations or changes can be made without departing from the principles of the present invention, and the technical features can be combined in a suitable manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims (6)

1. The utility model provides a return circuit resistance tester with protect function, is including placing board (3) and buffer unit (8), its characterized in that: the dustproof type circuit board is characterized in that universal wheels (4) are mounted on two sides of the bottom of the placing plate (3), a push rod (5) is fixedly connected to one side of the placing plate (3), the upper surface of the placing plate (3) extends to the inside, a placing groove (2) is formed in the upper surface of the placing plate (3), a loop resistance tester body (1) is movably mounted at the top of the placing plate (3), a dustproof assembly (6) is mounted at the top of the loop resistance tester body (1), and a ventilating assembly (7) is movably mounted on two sides of the loop resistance tester body (1).

2. The loop resistance tester with protection function of claim 1, characterized in that: buffering subassembly (8) include mounting panel (801), and mounting panel (801) and return circuit resistance tester body (1) swing joint, the lower surface threaded connection of mounting panel (801) has fixing bolt (806), install buffer beam (802) between fixing bolt (806), and buffer beam (802) and mounting panel (801) fixed connection, installation piece (803) are installed to the bottom of buffer beam (802), the bottom fixedly connected with rubber pad (810) of installation piece (803), installation cavity (805) have been seted up to the inside of installation piece (803), the inside swing joint of installation cavity (805) has fly leaf (804), and fly leaf (804) and buffer beam (802) fixed connection.

3. The loop resistance tester with protection function of claim 2, characterized in that: the both sides outer wall through connection of fly leaf (804) has montant (807), and montant (807) and fly leaf (804) swing joint, spring (808) have been cup jointed in the surface activity of montant (807), and spring (808) and fly leaf (804) fixed connection, install shock absorber (809) between montant (807).

4. The loop resistance tester with the protection function according to claim 1, characterized in that: ventilative subassembly (7) include permeability cell (705), thread groove (701) have been seted up at the top of permeability cell (705), the surface through connection of permeability cell (705) has filter (704), and filter (704) and permeability cell (705) swing joint, filter (704) upper end through connection has stop screw (703), and stop screw (703) and thread groove (701) threaded connection.

5. The loop resistance tester with the protection function according to claim 4, characterized in that: the fixed stopper (702) that is provided with in bottom of filter (704), spacing groove (706) have been seted up to the upper surface of stopper (702), and spacing groove (706) and filter (704) swing joint.

6. The loop resistance tester with the protection function according to claim 1, characterized in that: dustproof subassembly (6) include fixed plate (604), and fixed plate (604) and return circuit resistance tester body (1) fixed connection, draw-in groove (602) have been seted up to inside extension of the upper surface of fixed plate (604), the inside joint of draw-in groove (602) has cardboard (601), the top fixedly connected with dust guard (603) of cardboard (601).

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