Program-controlled current and voltage source with interface plug wire anti-drop function

Abstract

The utility model relates to the field of program-controlled current and voltage sources, discloses a program-controlled current and voltage source with a function of preventing an interface plug wire from falling off, and solves the problem that the conventional program-controlled current and voltage source with the function of preventing the interface plug wire from falling off is poor in protection effect. Through the racks, the gears, the two-way screws, the moving blocks, the connecting plates and the clamping plates, the push plate drives the racks to be meshed with the gears, the gears drive the two-way screws at the two ends to rotate, the two-way screws are in threaded connection with the moving blocks on the surfaces respectively, and the two moving blocks drive the connecting plates at the top ends to move reversely respectively. The connecting plate drives the two sets of arc-shaped clamping plates to be close to and fixed to the cable, and the inner sides of the clamping plates are provided with a plurality of rubber protruding blocks at equal intervals, so that the surface of the cable is prevented from being damaged by clamping, the surface of the cable can be effectively prevented from being damaged, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of program-controlled current and voltage sources, in particular to a program-controlled current and voltage source with an interface plug-in wire anti-dropping function. Background Art

[0002] A programmable current and voltage source is an electronic device that can generate variable current and voltage outputs through programming or adjustment. This device is commonly used in various test and measurement applications based on the demand for high-precision and high-stability power supply signals in modern electronics, electricity, scientific research and other fields.

[0003] During operation and use of existing programmable current and voltage sources, when conducting tests, the current and voltage sources are usually connected to the circuit or device under test. If the connection is not firm or the plug is loose, it may cause abnormal current or voltage, thereby causing safety accidents such as electric shock and equipment damage. During the test, if the plug falls off or the contact is poor, it may cause inaccurate test data or test interruption, affecting the reliability and accuracy of the test results. Utility Model Content

[0004] The utility model aims to provide a program-controlled current and voltage source with an interface plug wire anti-dropping function, and adopts the device to work, thereby solving the problem of poor protection effect of the existing program-controlled current and voltage source with an interface plug wire anti-dropping function.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a program-controlled current and voltage source with an interface plug-in anti-drop-off function, comprising a housing, an interface provided on the surface of the housing, a plug plugged into the interface, and a cable connected to one end of the plug, a hydraulic rod is provided on one side of the housing, and a limiting structure for preventing the cable and the plug from falling off is provided on one side of the hydraulic rod;

[0006] The limiting structure includes a fixed shell arranged on one side of the hydraulic rod, a rack slidably connected to the inside of the fixed shell, a gear meshed with the upper end of the rack, a bidirectional screw arranged at both ends of the gear, a moving block threadedly connected to the surface of the bidirectional screw, a connecting plate arranged at the top of the moving block, and a clamping plate arranged at the top of the connecting plate.

[0007] Furthermore, a slide groove is provided on the inner wall of the fixed shell, a slider slides inside the slide groove, a spring is provided at one end of the slider, one end of the spring is connected to the slide groove, and the top end of the slider is connected to the rack.

[0008] Furthermore, the bidirectional screw, movable block, connecting plate and clamping plate are symmetrically arranged in two groups with the gear as the center, one end of the two groups of bidirectional screws are movably connected to the inner wall of the fixed shell, and a groove is opened on the top surface of the fixed shell, and the two groups of connecting plates move in opposite directions in the groove.

[0009] Furthermore, the clamping plate is arc-shaped, and a convex block is arranged on the inner side of the clamping plate. The convex block is made of rubber material, and a plurality of convex blocks are arranged at equal intervals.

[0010] Furthermore, a notch is provided on the surface of the fixed shell, and the rack moves in the notch.

[0011] Furthermore, a push plate is provided at one end of the rack, a magnetic plate 1 is provided on one side of the push plate, a magnetic plate 2 is provided on the surface of the fixed shell, magnetic plate 1 is flush with magnetic plate 2, and magnetic plate 1 and magnetic plate 2 attract each other with opposite poles.

[0012] Furthermore, a protective structure is provided on one side of the fixed shell, and the protective structure includes a driven rod provided on one side of the moving block, the driven rod is L-shaped, a rubber sleeve is provided at one end of the driven rod, and a cotton plate is provided on the inner side of the rubber sleeve.

[0013] Furthermore, a long groove is provided on the surface of the fixed shell, and the driven rod moves in the long groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model proposes a programmable current and voltage source with an interface and wire anti-falling function. The existing programmable current and voltage sources with the interface and wire anti-falling function have poor protection effect. The utility model uses a rack, a gear, a bidirectional screw, a moving block, a connecting plate and a clamping plate. The push plate drives the rack to mesh with the gear, and the gear drives the bidirectional screws at both ends to rotate. The bidirectional screws are respectively threadedly connected to the moving blocks on the surface. The two groups of moving blocks respectively drive the connecting plates at the top to move in reverse directions. The connecting plates respectively drive two groups of arc-shaped clamping plates to move close to the cable and fix them. A number of rubber-made protrusions are evenly spaced on the inner side of the clamping plate to avoid cable surface damage. This can effectively avoid damage to the cable surface and extend the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the limiting structure, hydraulic rod and protective structure of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the limiting structure of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the protective structure of the utility model.

[0020] In the figure: 1. Shell; 2. Interface; 3. Cable; 4. Plug; 5. Limiting structure; 51. Fixed shell; 52. Slide groove; 53. Slider; 54. Spring; 55. Rack; 56. Gear; 57. Bidirectional screw; 58. Moving block; 59. Connecting plate; 510. Clamp; 511. Bump; 512. Groove; 513. Push plate; 514. Magnetic plate 1; 515. Magnetic plate 2; 516. Notch; 6. Hydraulic rod; 7. Protective structure; 71. Follower rod; 72. Long groove; 73. Rubber sleeve; 74. Cotton board. 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] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0023] Combination Figure 1-Figure 3 A programmable current and voltage source with an interface and wire anti-falling function comprises a shell 1, an interface 2 provided on the surface of the shell 1, a plug 4 plugged into the interface 2, a cable 3 connected to one end of the plug 4, a hydraulic rod 6 is provided on one side of the shell 1, and a limiting structure 5 for preventing the cable 3 and the plug 4 from falling off is provided on one side of the hydraulic rod 6.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Embodiment 1:

[0026] See also Figure 1-Figure 3The limiting structure 5 includes a fixed shell 51 arranged on one side of the hydraulic rod 6, a rack 55 slidably connected to the inside of the fixed shell 51, a gear 56 meshed with the upper end of the rack 55, a bidirectional screw 57 arranged at both ends of the gear 56, a moving block 58 threadedly connected to the surface of the bidirectional screw 57, a connecting plate 59 arranged at the top of the moving block 58, and a clamping plate 510 arranged at the top of the connecting plate 59. A sliding groove 52 is opened on the inner wall of the fixed shell 51, and a slider 53 slides inside the sliding groove 52. A spring 54 is arranged at one end of the slider 53, and one end of the spring 54 is connected to the sliding groove 52. The top of the slider 53 is connected to the rack 55. The bidirectional screw 57, the moving block 58, the connecting plate 59 and the clamping plate 510 are symmetrically arranged in two groups with the gear 56 as the center. The two groups One end of the bidirectional screw 57 is movably connected to the inner wall of the fixed shell 51, and a groove 512 is provided on the top surface of the fixed shell 51. The two groups of connecting plates 59 move in opposite directions in the groove 512. The clamping plate 510 is arc-shaped, and a protrusion 511 is provided on the inner side of the clamping plate 510. The protrusion 511 is made of rubber, and a number of protrusions 511 are arranged at equal intervals. A notch 516 is provided on the surface of the fixed shell 51, and the rack 55 moves in the notch 516. A push plate 513 is provided at one end of the rack 55, and a magnetic plate 1 514 is provided on one side of the push plate 513. A magnetic plate 2 515 is provided on the surface of the fixed shell 51. The magnetic plate 1 514 is flush with the magnetic plate 2 515, and the magnetic plate 1 514 and the magnetic plate 2 515 are attracted to each other by opposite poles, which ensures the stability and reliability of the clamping of the cable 3 and is not easy to loosen or fall off.

[0027] Specifically, first align the plug 4 at one end of the cable 3 with the interface 2 on the surface of the shell 1 and insert it, then use the external button to start the hydraulic rod 6 at one end of the shell 1 to drive the fixed shell 51 to move to the appropriate position, and then push the push plate 513 at one end of the fixed shell 51, the push plate 513 drives the rack 55 to mesh with the gear 56, the rack 55 moves in the notch 516, the rack 55 drives the slider 53 at the bottom to move in the slide groove 52, the slider 53 drives the spring 54 to stretch and store force, the magnetic plate 1 514 on one side of the push plate 513 and the magnetic plate 2 515 on the surface of the fixed shell 51 are attracted by opposite poles, the gear 56 drives the bidirectional screws 57 at both ends to rotate, and one end of the bidirectional screw 57 is engaged with the fixed shell The inner wall of 51 is movably connected, and the bidirectional screw rod 57 is threadedly connected with the moving block 58 on the surface respectively. The two groups of moving blocks 58 respectively drive the connecting plate 59 at the top to move in the opposite direction. The connecting plate 59 moves in the groove 512. The connecting plate 59 respectively drives the two groups of arc-shaped clamping plates 510 to be close to the cable 3 and fixed, and a plurality of rubber protrusions 511 are evenly spaced on the inner side of the clamping plate 510 to avoid the surface of the cable 3 from being clamped and damaged. The surface of the cable 3 can be effectively avoided, the service life of the cable 3 is extended, the stability and reliability of the clamping of the cable 3 is ensured, and it is not easy to loosen or fall off. The whole fixing process can be completed automatically, reducing the need for manual operation and improving work efficiency.

[0028] Embodiment 2:

[0029] See also Figure 4 A protective structure 7 is provided on one side of the fixed shell 51, and the protective structure 7 includes a driven rod 71 arranged on one side of the moving block 58. The driven rod 71 is L-shaped, and a rubber sleeve 73 is provided at one end of the driven rod 71. A cotton board 74 is provided on the inner side of the rubber sleeve 73. A long groove 72 is opened on the surface of the fixed shell 51, and the driven rod 71 moves in the long groove 72, which enhances the durability and reliability of the equipment. The rubber sleeve 73 can shield and protect the interface 2 when it is not in use.

[0030] Specifically, as the two groups of moving blocks 58 move in opposite directions, the driven rod 71 on one side is driven to move, and the driven rod 71 moves in the long groove 72. The two groups of driven rods 71 ​​respectively drive the rubber sleeve 73 at one end to move in opposite directions close to the interface 2, so that the two groups of rubber sleeves 73 shield and protect the outer end of the interface 2, provide physical protection, prevent foreign matter, dust or liquid from entering the interface 2, and enhance the durability and reliability of the device. The rubber sleeve 73 can shield and protect the interface 2 when it is not in use, reducing the damage of the interface 2 caused by long-term exposure to the external environment, and a cotton board 74 is arranged on the inner side of the rubber sleeve 73. The cotton board 74 is used to absorb water vapor, thereby enhancing the moisture-proof performance of the equipment, which is particularly suitable for environments with high humidity.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A programmable current and voltage source with an interface and wire anti-drop function, comprising a housing (1), an interface (2) provided on the surface of the housing (1), a plug (4) plugged into the interface (2), and a cable (3) connected to one end of the plug (4), characterized in that: A hydraulic rod (6) is provided on one side of the housing (1), and a limiting structure (5) for preventing the cable (3) and the plug (4) from falling off is provided on one side of the hydraulic rod (6); The limiting structure (5) comprises a fixed shell (51) arranged on one side of the hydraulic rod (6), a rack (55) slidably connected to the inside of the fixed shell (51), a gear (56) meshed with the upper end of the rack (55), a bidirectional screw (57) arranged at both ends of the gear (56), a moving block (58) threadedly connected to the surface of the bidirectional screw (57), a connecting plate (59) arranged at the top end of the moving block (58), and a clamping plate (510) arranged at the top end of the connecting plate (59).

2. A program-controlled current and voltage source with an interface plug wire anti-drop function according to claim 1, characterized in that: The inner wall of the fixed shell (51) is provided with a slide groove (52), a slider (53) is slidably arranged inside the slide groove (52), a spring (54) is arranged at one end of the slider (53), one end of the spring (54) is connected to the slide groove (52), and the top end of the slider (53) is connected to the rack (55).

3. A program-controlled current and voltage source with an interface plug wire anti-drop function according to claim 1, characterized in that: The bidirectional screw rod (57), the moving block (58), the connecting plate (59) and the clamping plate (510) are symmetrically arranged in two groups with the gear (56) as the center. One end of the two groups of bidirectional screw rods (57) is movably connected to the inner wall of the fixed shell (51). The top surface of the fixed shell (51) is provided with a groove (512), and the two groups of connecting plates (59) move in opposite directions in the groove (512).

4. A program-controlled current and voltage source with an interface plug wire anti-drop function according to claim 1, characterized in that: The two groups of clamping plates (510) are arc-shaped, and the inner sides of the clamping plates (510) are provided with protrusions (511), the protrusions (511) are made of rubber material, and a plurality of protrusions (511) are arranged at equal intervals.

5. A program-controlled current and voltage source with an interface plug wire anti-drop function according to claim 2, characterized in that: A notch (516) is provided on the surface of the fixed shell (51), and the rack (55) moves in the notch (516).

6. A program-controlled current and voltage source with an interface plug wire anti-drop function according to claim 5, characterized in that: A push plate (513) is provided at one end of the rack (55), a magnetic plate 1 (514) is provided on one side of the push plate (513), a magnetic plate 2 (515) is provided on the surface of the fixed shell (51), the magnetic plate 1 (514) is flush with the magnetic plate 2 (515), and the magnetic plate 1 (514) and the magnetic plate 2 (515) are attracted to each other with opposite poles.

7. A program-controlled current and voltage source with an interface plug wire anti-drop function according to claim 6, characterized in that: A protective structure (7) is provided on one side of the fixed shell (51), the protective structure (7) comprising a driven rod (71) provided on one side of the moving block (58), the driven rod (71) being L-shaped, a rubber sleeve (73) being provided at one end of the driven rod (71), and a cotton plate (74) being provided on the inner side of the rubber sleeve (73).

8. A program-controlled current and voltage source with an interface plug wire anti-drop function according to claim 7, characterized in that: A long groove (72) is formed on the surface of the fixed shell (51), and the driven rod (71) moves in the long groove (72).

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