Wire tester with protection function

Abstract

The utility model discloses a wire rod tester with a protection function, which comprises a protection box body, the top of the protection box body is connected with a box cover through a hinge, the bottom of the protection box body is provided with four self-locking universal wheels, the rear part of the protection box body is provided with a pull rod, and the protection box body is internally provided with a lifting mechanism. A table top is arranged above the lifting mechanism, and a tester body is arranged above the table top. Through the arrangement of the self-locking universal wheels, the pull rod and the handle, the protection box body adopts the design that the self-locking universal wheels are matched with the pull rod, so that the wire rod tester can be dragged like a luggage case, the carrying burden of a user is greatly reduced, the portability is improved, the wire rod tester is more labor-saving in long-distance or frequent movement, and the wire rod tester is more convenient to use. Besides the self-locking type universal wheels and the pull rod, the lifting handle provides another carrying mode for a user, the user can lift the carrying equipment through the lifting handle, and rapid carrying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection of wire testers, and particularly relates to a wire tester with a protection function. Background Art

[0002] A wire tester is an instrument and equipment used to test the quality and electrical performance of wires and cables. It mainly tests the resistance value of wires and cables based on the resistance bridge method. By measuring and calculating the resistance value, various electrical parameters of the wire can be obtained. It is widely used in the manufacturing and maintenance fields of various electrical equipment. For example, in the continuity test, a certain current is applied to the cable to be tested, and the voltage value and current value at the end points of the cable are measured. The internal part of the tester uses Ohm's law to convert the measurement results to obtain an accurate resistance value, and compares it with the resistance value set by the user to determine whether it meets the requirements.

[0003] The existing wire testers do not have a protection function when not in use. Usually, the testers are directly exposed, and are easily subject to physical impacts such as collision, extrusion, and dropping in the environment, resulting in damage to the outer shell, loosening or damage of internal components. These physical damages not only affect the appearance of the tester, but more importantly, may damage its internal structure and circuit, causing the tester to malfunction.

[0004] For example, the portable transformer DC resistance tester device disclosed in the patent with the publication number CN211697976U. Although a box body and a top cover are provided in this patent to store and protect the tester body, it mainly relies on manually putting the tester body into or taking it out of the box body, and manual handling of the box body is required to transport the tester. In actual applications, the tester body will be transported to different production lines according to production requirements to test wires. Manual handling of the box body, especially the box body containing the tester, may be quite heavy, increasing the labor intensity of the operator and easily causing fatigue and injury during long-term work.

[0005] Therefore, it is necessary to invent a wire tester with a protection function to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a wire tester with a protection function to solve the problem of the lack of a protection function in the technology.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A wire tester with a protection function, including a protection box body, self-locking universal wheels, a pull rod, a lifting mechanism, and a tester body. The top of the protection box body is hinged with a box cover. Four self-locking universal wheels are arranged at the bottom of the protection box body. A pull rod is arranged at the rear of the protection box body. A lifting mechanism is arranged inside the protection box body. A tabletop is arranged above the lifting mechanism, and a tester body is arranged above the tabletop.

[0008] Preferably, a latch is provided on the front side of the connection between the protective box body and the box cover. There are 2 latches, and the two latches are centrosymmetric with respect to the protective box body. The latches ensure the stability and sealing performance of the box cover when it is closed.

[0009] Preferably, a handle is provided above the protective box body. The handle is designed in an inverted "U" shape structure. The left and right ends of the handle are hinged to the outer walls on the left and right sides of the protective box body. The handle facilitates the operator to lift and carry the tester.

[0010] Preferably, the lifting mechanism includes a chassis, a support rod, an angle shaft, and a sliding groove. The chassis is located at the inner bottom end of the protective box body. A support rod is provided above the chassis. The support rod is designed in an "X" structure and is arranged below the tabletop. The design of the lifting mechanism allows the tabletop and the tester body on it to flexibly adjust the height in the vertical direction to adapt to different usage scenarios or operation requirements.

[0011] Preferably, one end of the bottom of the support rod is hinged to the chassis, and the other end of the bottom of the support rod is provided with an angle shaft. A sliding groove is opened at the contact position between the angle shaft and the chassis. The angle shaft is slidably connected to the sliding groove. The sliding connection between the angle shaft and the sliding groove ensures the smoothness and accuracy of the lifting process.

[0012] Preferably, the lifting mechanism further includes a hydraulic cylinder, a triangular connecting piece, and an oil cylinder ear. The hydraulic cylinder is located between the angle shaft and the chassis. The end of the hydraulic cylinder is connected to the side wall of the chassis through the triangular connecting piece. The hydraulic cylinder is hingedly connected to the triangular connecting piece. The output end of the hydraulic cylinder is connected to the angle shaft through the oil cylinder ear. The oil cylinder ear is movably connected to the angle shaft. The driving action of the hydraulic cylinder realizes the lifting operation of the tabletop.

[0013] Preferably, one end of the top of the support rod is hingedly connected to the bottom surface of the tabletop, and the other end of the top of the support rod is provided with a slider. A sliding groove is opened at the contact position between the slider and the bottom surface of the tabletop. The slider is slidably connected to the sliding groove. The slider and the sliding groove enable the tabletop to remain horizontal and stable during the lifting process.

[0014] Preferably, rollers are rotatably installed on the side walls on the left and right sides of the tabletop. There are multiple rollers, and the multiple rollers are evenly arranged in a straight line array. The rollers are in contact with the outer side wall of the tester body. The rotation of the rollers facilitates the tester body to be easily pushed to the designated position on the tabletop, not only reducing friction but also providing an additional support point through rolling contact to ensure good fitting and levelness between the tester body and the tabletop.

[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0016] 1. Through the setting of the protective box body and the box cover, when the wire tester is not in use, the wire tester is stored inside the protective box body. When the protective box body and the box cover are closed, they form a sealed environment that can prevent harmful substances such as dust and moisture from entering the inside of the wire tester. Moreover, the protective box body and the box cover are made of strong and durable materials, which can effectively prevent the wire tester from being collided and squeezed during storage, handling or transportation, protecting the shell and internal components of the wire tester from damage. And the wire tester inside the protective box body can be quickly lifted to a suitable height through the lifting mechanism, which is convenient for users to take and put back.

[0017] 2. Through the setting of the self-locking universal wheels, the pull rod and the handle, the protective box body adopts the design of self-locking universal wheels combined with the pull rod, enabling the wire tester to be towed like a suitcase, greatly reducing the handling burden of the user. It not only improves portability but also makes the wire tester more labor-saving during long-distance or frequent movement. In addition to the self-locking universal wheels and the pull rod, the setting of the handle provides another handling method for the user. The user can lift and carry the device through the handle to achieve quick handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the overall rear three-dimensional structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the three-dimensional sectional structure of the protective box body of the present utility model;

[0021] Figure 4 is a schematic diagram of the three-dimensional structure of the lifting mechanism of the present utility model viewed from below;

[0022] Figure 5 is a schematic diagram of the three-dimensional structure of the tabletop and the rollers of the present utility model.

[0023] DESCRIPTION OF THE REFERENCE NUMERALS:

[0024] 1. Protective box body; 2. Box cover; 3. Lock; 4. Self-locking universal wheel; 5. Handle; 6. Pull rod; 7. Lifting mechanism; 701. Underframe; 702. Support rod; 703. Angle shaft; 704. Sliding groove; 705. Hydraulic cylinder; 706. Triangular connecting piece; 707. Cylinder support ear; 708. Slide block; 709. Slide groove; 8. Tabletop; 801. Roller; 9. Tester body. DETAILED DESCRIPTION OF THE INVENTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figures 1-5 A wire tester with a protective function shown in the figure comprises a protective box 1, self-locking universal wheels 4, a pull rod 6, a lifting mechanism 7 and a tester body 9. The top hinge of the protective box 1 is connected to a box cover 2, and a lock buckle 3 is arranged on the front side of the connection between the protective box 1 and the box cover 2. There are two lock buckles 3, and the two lock buckles 3 are symmetrical with each other about the center of the protective box 1. Four self-locking universal wheels 4 are arranged at the bottom of the protective box 1, and a handle 5 is arranged above the protective box 1. The handle 5 is designed in an inverted "凵" structure. The left and right ends of the handle 5 are hinged to the left and right outer walls of the protective box 1, and a pull rod 6 is arranged at the rear of the protective box 1. A lifting mechanism 7 is arranged inside the protective box 1, and a table 8 is arranged above the lifting mechanism 7, and a tester body 9 is arranged above the table 8.

[0027] The combination of the protective box 1 and the box cover 2 can protect the internal tester body 9 from external impact and damage, and the four self-locking universal wheels 4 not only allow the tester body 9 to be flexibly moved on a variety of ground surfaces, but also have a self-locking function, and the tester body 9 can be fixed in place when necessary to prevent sliding, and the pull rod 6 is used in combination with the four self-locking universal wheels 4 to drag the protective box 1 tester body 9 over a long distance on a flat ground, thereby reducing the burden of carrying.

[0028] The lifting mechanism 7 includes a chassis 701, support rods 702, an angle shaft 703, and a sliding groove 704. The chassis 701 is located at the inner bottom end of the protective box body 1. Above the chassis 701, there are support rods 702. The support rods 702 are designed in an "X" structure and are arranged below the tabletop 8. One end of the bottom of the support rod 702 is hinged to the chassis 701, and the other end of the bottom of the support rod 702 is provided with an angle shaft 703. A sliding groove 704 is opened at the contact position between the angle shaft 703 and the chassis 701. The angle shaft 703 is slidably connected to the sliding groove 704. The lifting mechanism 7 further includes a hydraulic cylinder 705, a triangular connecting piece 706, and an oil cylinder ear 707. The hydraulic cylinder 705 is located between the angle shaft 703 and the chassis 701. The end of the hydraulic cylinder 705 is connected to the side wall of the chassis 701 through the triangular connecting piece 706. The hydraulic cylinder 705 and the triangular connecting piece 706 are hinged. The output end of the hydraulic cylinder 705 is connected to the angle shaft 703 through the oil cylinder ear 707. The oil cylinder ear 707 and the angle shaft 703 are movably connected. One end of the top of the support rod 702 is hinged to the bottom surface of the tabletop 8, and the other end of the top of the support rod 702 is provided with a slider 708. A sliding groove 709 is opened at the contact position between the slider 708 and the bottom surface of the tabletop 8. The slider 708 is slidably connected to the sliding groove 709. Rollers 801 are rotatably installed on the left and right sides of the tabletop 8. There are multiple rollers 801, and the multiple rollers 801 are evenly arranged in a straight line array. The rollers 801 are in contact with the outer side wall of the tester body 9.

[0029] The support rods 702 are designed in an "X" - shaped structure. The four support rods 702 form a stable support structure through the hinge points at the bottom and the connection points at the top. This design allows the support rods 702 to expand or contract and fold simultaneously under the drive of the hydraulic cylinder 705, thereby adjusting the height of the tabletop 8. And the angle shaft 703 slides in the sliding groove 704, and the slider 708 slides in the sliding groove 709. This sliding connection enables the support rods 702 to maintain a certain angle change during the lifting process, so as to smoothly push the tabletop 8 up or down. Moreover, the hydraulic cylinder 705, as the power source of the lifting mechanism 7, its telescopic movement is transmitted to the angle shaft 703 through the oil cylinder ear 707, and then drives the expansion or contraction of the support rods 702, realizing that the tester body 9 is always in a horizontal state to adjust its height, so as to adapt to different usage scenarios or operation requirements, effectively improving the flexibility and convenience of the tester body 9.

[0030] The working principle of the present utility model:

[0031] Refer to the attached instructions Figures 1-5, when using the present utility model, first slide the tester body 9 forward through the rollers 801 onto the tabletop 8, and then start the lifting mechanism 7. The lifting mechanism 7 drives through the hydraulic cylinder 705 to realize the lifting of the tabletop 8. When it is necessary to store the tester body 9 inside the protective box body 1, the hydraulic cylinder 705 can be started. The hydraulic cylinder 705 pushes the angle shaft 703 to slide in the sliding groove 704, thereby driving the support rod 702 to contract and fold, realizing the lowering of the tabletop 8. In this way, the tabletop 8 drives the tester body 9 to be completely stored inside the protective box body 1. Then cover the box cover 2 and lock it firmly through the two lock catches 3. At this time, hold the pull rod 6 and move the tester body 9 to the designated position through the self-locking universal wheels 4. After reaching the position, lock the self-locking universal wheels 4 to prevent the protective box body 1 from moving, and open the box cover 2. Start the lifting mechanism 7 again to raise the tabletop 8 so that the tester body 9 rises to a suitable height for use, and directly start using the tester body 9, or slide the tester body 9 backward to remove it from the tabletop 8 for use if necessary.

Claims

1. A wire tester with a protective function, comprising a protective box (1), a self-locking universal wheel (4), a pull rod (6), a lifting mechanism (7) and a tester body (9), characterized in that: The top of the protective box body (1) is hinged with a box cover (2). Four self-locking universal wheels (4) are arranged at the bottom of the protective box body (1). A pull rod (6) is arranged at the rear of the protective box body (1). A lifting mechanism (7) is arranged inside the protective box body (1). A tabletop (8) is arranged above the lifting mechanism (7). A tester body (9) is arranged above the tabletop (8).

2. The wire tester with protection function according to claim 1, characterized in that: At the front side of the connection between the protective box body (1) and the box cover (2), there are two lock catches (3). The two lock catches (3) are centrosymmetric with respect to the protective box body (1).

3. The wire tester with protection function according to claim 2, characterized in that: A handle (5) is arranged above the protective box body (1). The handle (5) is designed in an inverted "U" shape structure. The left and right ends of the handle (5) are hinged to the outer walls on the left and right sides of the protective box body (1).

4. The wire tester with protection function according to claim 1, characterized in that: The lifting mechanism (7) includes a chassis (701), support rods (702), an angle shaft (703), and a sliding groove (704). The chassis (701) is located at the inner bottom end of the protective box body (1). Support rods (702) are arranged above the chassis (701). The support rods (702) are designed in an "X" structure and are arranged below the tabletop (8).

5. The wire tester with protection function according to claim 4, characterized in that: One end of the bottom of the support rod (702) is hinged to the chassis (701). The other end of the bottom of the support rod (702) is provided with an angle shaft (703). A sliding groove (704) is opened at the contact position between the angle shaft (703) and the chassis (701). The angle shaft (703) is slidably connected to the sliding groove (704).

6. The wire tester with protection function according to claim 4, characterized in that: The lifting mechanism (7) further includes a hydraulic cylinder (705), a triangular connecting piece (706), and an oil cylinder ear (707). The hydraulic cylinder (705) is located between the angle shaft (703) and the chassis (701). The end of the hydraulic cylinder (705) is connected to the side wall of the chassis (701) through the triangular connecting piece (706). The hydraulic cylinder (705) is hinged to the triangular connecting piece (706). The output end of the hydraulic cylinder (705) is connected to the angle shaft (703) through the oil cylinder ear (707). The oil cylinder ear (707) is movably connected to the angle shaft (703).

7. The wire tester with protection function according to claim 5, characterized in that: One end of the top of the support rod (702) is hinged to the bottom surface of the tabletop (8). The other end of the top of the support rod (702) is provided with a slider (708). A sliding groove (709) is opened at the contact position between the slider (708) and the bottom surface of the tabletop (8). The slider (708) is slidably connected to the sliding groove (709).

8. The wire tester with protection function according to claim 1, characterized in that: Rollers (801) are rotatably installed on the side walls on the left and right sides of the tabletop (8). There are multiple rollers (801), and the multiple rollers (801) are evenly arranged in a straight line array. The rollers (801) are in contact with the outer side wall of the tester body (9).

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