Hand-held DC resistance tester

Abstract

The utility model discloses a hand-held direct current resistance tester, which belongs to the technical field of resistance testers and comprises a tester body, two clamping grooves are arranged on the side portion of the tester body, fixing clamping plates are arranged on the clamping grooves, connecting columns are arranged on the fixing clamping plates, and fixing belts are arranged between the connecting columns. Connecting holes are formed in the two ends of the fixing band, a holding band is arranged in the middle of the fixing band, a connecting band is arranged at the position, close to one end, of the fixing band, a wrist ring band is connected to the end of the fixing band, fixing cavities are formed in the positions, close to the two sides, of the fixing clamping plate, and synchronous plates are arranged in the fixing cavities. A pressing column and a clamping block are arranged on one side of the synchronous plate, and a first spring is arranged between the synchronous plate and the fixing cavity. According to the utility model, the wrist girdle, the connecting band and other parts are matched for use, so that the tester body can be conveniently connected with the wrist of a tester, and the falling phenomenon caused by unforeseen circumstances is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testers, in particular to a handheld direct current resistance tester. Background Art

[0002] When transformers, heavy motors, mutual inductors and other related equipment are in use, resistance tests are often performed on them to ensure their stability. DC resistance testers, as a special resistance measuring device, use switching power supply technology to display resistance through a built-in DC constant current source. Handheld DC resistance testers, as a type of DC resistance tester, can be carried and used more conveniently due to their small size.

[0003] However, the existing handheld DC resistance tester has the following problems during use: since the tester generally only relies on the handheld tester during the test, special situations such as unstable holding or accidental touch may occur during the test, and the tester may fall, which affects the normal test and easily causes damage to the tester. Therefore, it is necessary to design a corresponding technical solution to solve the existing technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a handheld DC resistance tester, which solves the technical problem that during the test, the tester generally only relies on the handheld tester. During the test, special situations such as unstable holding or accidental touching may occur, and the tester may fall, which affects the normal test and easily causes damage to the tester, thereby meeting actual use needs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a tester body, two card-joining grooves are arranged on the side of the tester body, the card-joining grooves are arranged on each of the fixed card-joining grooves, the fixed card-joining plate is arranged on each of the fixed card-joining plates, connecting columns are arranged on each of the connecting columns, a fixing belt is arranged between the connecting columns, connecting holes are arranged on both ends of the fixing belt, a grip belt is arranged at the middle position of the fixing belt, a connecting belt is arranged at a position close to one end of the fixing belt, a wrist strap is connected to the end of the fixing belt, a fixing cavity is arranged at a position close to both sides of the fixing card-joining plate, a synchronization plate is arranged in the fixing cavity, a pressing column and a card block are respectively arranged on one side of the synchronization plate, and a spring is arranged between the synchronization plate and the fixing cavity.

[0006] As a preferred embodiment of the utility model, four test jacks are arranged on the top of the tester body, four telescopic columns are arranged on the tester body near the test jacks, a connecting plate is vertically arranged on the outer edge of the telescopic column, and a sealing plug is arranged on one end of the bottom of the connecting plate.

[0007] As a preferred embodiment of the utility model, the smaller end of the telescopic column is fixedly connected to the tester body, a second spring is installed inside the telescopic column, the sealing plug is composed of plastic and rubber materials, and part of the sealing plug is inserted into the test socket.

[0008] As a preferred embodiment of the utility model, a display screen and a control panel are sequentially installed on one side of the tester body, a data interface is provided on the side of the tester body, and a fixing slot for cooperating with the card block is provided on the card connection slot.

[0009] As a preferred embodiment of the present utility model, the fixed card plate is provided with a groove at the position of the connecting column, part of the fixed card plate is located in the clamping groove, the connecting column is located in the connecting hole, and the width of the grip belt is greater than the width of the fixing belt.

[0010] As a preferred embodiment of the utility model, a Velcro piece is provided on the grip strap, the connecting strap and the fixing strap are sutured, the wrist strap is made of elastic material, a through hole for cooperating with the push column and the card block is provided between the fixing card plate and the fixing cavity, and the card block has a right-angled trapezoidal structure as a whole.

[0011] As a preferred embodiment of the utility model, a plurality of guide members are evenly arranged between the synchronization plate and the fixed cavity, and the guide members are composed of guide protrusions and guide grooves. The spring is located close to the push column, and the end of the push column has an arc-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] By using the wrist strap, connecting strap and other components together, the tester body can be conveniently connected to the tester's wrist. When encountering special situations such as accidentally touching the tester body, the tester body can be prevented from falling. At the same time, when no test is performed, the sealing plug can be inserted into the test jack to avoid the accumulation of dust and impurities. With the telescopic column, the position of the sealing plug can be moved to facilitate testing and use, thereby solving the problem of affecting normal testing and easily causing damage to the tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the clamping slot of the utility model;

[0016] Figure 3This is a structural diagram of the grip belt of the utility model;

[0017] Figure 4 This is a structural diagram of the wrist band described in the utility model;

[0018] Figure 5 This is a structural diagram of the fixed card plate described in the utility model;

[0019] Figure 6 This is a structural diagram of the telescopic column described in the utility model.

[0020] In the figure: control panel-1, tester body-2, test jack-3, telescopic column-4, grip belt-5, wrist strap-6, fixing belt-7, fixing card plate-8, connecting hole-9, connecting belt-10, synchronization plate-11, card block-12, fixing cavity-13, spring-1-14, connecting column-15, pressing column-16, card slot-17, sealing plug-18, connecting plate-19. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-6 The utility model provides a technical solution: a handheld DC resistance tester, comprising: a tester body 2, two card slots 17 are arranged on the side of the tester body 2, the card slots 17 are each provided with a fixed card plate 8, the fixed card plate 8 is provided with a connecting column 15, a fixed belt 7 is arranged between the connecting columns 15, and connecting holes 9 are arranged on both ends of the fixed belt 7, a grip belt 5 is arranged at the middle position of the fixed belt 7, a connecting belt 10 is arranged at a position close to one end of the fixed belt 7, a wrist loop 6 is connected to the end of the fixed belt 7, a fixed cavity 13 is arranged at a position close to both sides of the fixed card plate 8, a synchronous plate 11 is arranged in the fixed cavity 13, a pressing column 16 and a card block 12 are respectively arranged on one side of the synchronous plate 11, and a spring 14 is arranged between the synchronous plate 11 and the fixed cavity 13.

[0023] As a further improvement, four test sockets 3 are provided on the top of the tester body 2, and four telescopic columns 4 are provided on the tester body 2 near the test sockets 3. A connecting plate 19 is vertically provided on the outer edge of the telescopic column 4, and a sealing plug 18 is provided on one end of the bottom of the connecting plate 19.

[0024] As a further improvement, the smaller end of the telescopic column 4 is fixedly connected to the tester body 2, a spring 2 is installed inside the telescopic column 4, and the sealing plug 18 is made of plastic and rubber materials, and part of the sealing plug 18 is inserted into the test socket 3.

[0025] As a further improvement, a display screen and a control panel 1 are sequentially mounted on one side of the tester body 2 , a data interface is disposed on the side of the tester body 2 , and a fixing slot for cooperating with the card block 12 is disposed on the card connection slot 17 .

[0026] As a further improvement, the fixed card plate 8 is provided with a groove at the position of the connecting column 15 , a part of the fixed card plate 8 is located in the clamping groove 17 , the connecting column 15 is located in the connecting hole 9 , and the width of the grip belt 5 is greater than the width of the fixing belt 7 .

[0027] As a further improvement, a Velcro piece is provided on the grip strap 5. Specifically, the Velcro piece is composed of a mother Velcro piece and a child Velcro piece, and is distributed on different sides of the grip strap 5. When no test is performed, the grip straps 5 are connected to store the wrist loop 6, and it is convenient for the tester to hold and move it. The connecting belt 10 and the fixing belt 7 are sutured. The wrist loop 6 is made of elastic material. A through hole is provided between the fixed card plate 8 and the fixed cavity 13 for cooperating with the pressing column 16 and the card block 12. The card block 12 has a right-angled trapezoidal structure as a whole.

[0028] As a further improvement, a plurality of guide members are evenly arranged between the synchronization plate 11 and the fixed cavity 13, and the guide members are composed of guide protrusions and guide grooves. The spring 14 is located near the push column 16, and the end of the push column 16 is in an arc-shaped structure.

[0029] When in use: When the utility model needs to be hand-held for testing, the Velcro on the grip belt 5 is separated, that is, the grip belt 5 is opened, and then the wrist loop 6 can be taken out and put on the wrist of the tester. At the same time, according to the hand-holding needs of different testers, such as left hand or right hand, a fixed card plate 8 can be removed from the card slot 17. The tester presses the two pressing columns 16 to drive the card block 12 to move out of the card slot, and then the fixed card plate 8 can be removed, so as to realize the movement of the connecting belt 10, extend the length of the wrist loop 6, and facilitate use. During the handheld test, if an accidental touch occurs and the tester slips from the hand, the tester is connected to the tester's hand through the wrist strap 6, and the tester will not fall, which effectively protects the tester. At the same time, when connecting the wiring harness, the telescopic column 4 can be lifted upward to drive the sealing plug 18 to be moved out of the test socket 3, and the telescopic column 4 can be rotated to move the sealing plug 18 to facilitate the wiring harness connection. After the test is completed, the sealing plug 18 can be inserted into the test socket 3 to prevent dust and impurities from accumulating inside.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A handheld DC resistance tester, characterized in that: The invention comprises a tester body (2), two card slots (17) are arranged on the side of the tester body (2), a fixing card plate (8) is arranged on each of the card slots (17), a connecting column (15) is arranged on each of the fixing card plates (8), a fixing belt (7) is arranged between the connecting columns (15), connecting holes (9) are arranged on both ends of the fixing belt (7), a grip belt (5) is arranged in the middle of the fixing belt (7), and the fixing belt (7) is arranged at a position corresponding to the fixing hole (9). A connecting belt (10) is arranged near one end, a wrist strap (6) is connected to the end of the fixing belt (7), a fixing cavity (13) is arranged near both sides of the fixing card plate (8), a synchronization plate (11) is arranged in the fixing cavity (13), a pressing column (16) and a card block (12) are arranged on one side of the synchronization plate (11), and a spring (14) is arranged between the synchronization plate (11) and the fixing cavity (13).

2. A handheld DC resistance tester according to claim 1, characterized in that: Four test sockets (3) are arranged on the top of the tester body (2), and four telescopic columns (4) are arranged on the tester body (2) near the test sockets (3). A connecting plate (19) is vertically arranged on the outer edge of the telescopic column (4), and a sealing plug (18) is arranged on one end of the bottom of the connecting plate (19).

3. A handheld DC resistance tester according to claim 2, characterized in that: The smaller end of the telescopic column (4) is fixedly connected to the tester body (2), a second spring is installed inside the telescopic column (4), the sealing plug (18) is made of plastic and rubber materials, and a part of the sealing plug (18) is inserted into the test jack (3).

4. A handheld DC resistance tester according to claim 1, characterized in that: A display screen and a control panel (1) are sequentially mounted on one side of the tester body (2), a data interface is provided on the side of the tester body (2), and a fixing slot for matching with the card block (12) is provided on the card connection slot (17).

5. A handheld DC resistance tester according to claim 1, characterized in that: The fixed card plate (8) is provided with a groove at the position of the connecting column (15), a part of the fixed card plate (8) is located in the connecting groove (17), the connecting column (15) is located in the connecting hole (9), and the width of the grip belt (5) is greater than the width of the fixing belt (7).

6. A handheld DC resistance tester according to claim 1, characterized in that: The grip strap (5) is provided with a Velcro piece, the connecting strap (10) and the fixing strap (7) are sutured and connected, the wrist strap (6) is made of elastic material, and a through hole for cooperating with the pressing column (16) and the card block (12) is provided between the fixing card plate (8) and the fixing cavity (13), and the card block (12) is of a right-angled trapezoidal structure as a whole.

7. A handheld DC resistance tester according to claim 1, characterized in that: A plurality of guide members are evenly arranged between the synchronization plate (11) and the fixed cavity (13), and the guide members are composed of guide protrusions and guide grooves. The spring 1 (14) is located near the push column (16), and the end of the push column (16) is in an arc-shaped structure.

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