Special power supply for instantaneous test of low-voltage apparatus

Abstract

The utility model relates to the field of electric appliance testing, and discloses a special power supply for instantaneous test of a low-voltage electric appliance, which comprises a testing power supply, a copper bar is arranged at the front end of the testing power supply, supporting legs are arranged at the bottom end of the testing power supply, a protection assembly is arranged at the front end of the testing power supply, and the protection assembly comprises a fixing plate. A sliding rod is fixedly connected to the left end of the fixing plate, a sliding block is slidably connected to the outer wall of the sliding rod, a fixing assembly is arranged at the left end of the sliding block and comprises a clamping block, the clamping block penetrates through and is slidably connected to the inner wall of the sliding block, a clamping groove is formed in the outer wall of the sliding rod, and the clamping groove is matched with the clamping block. And the front end of the clamping block is fixedly connected with a fixed spring. According to the utility model, the copper bar is shielded by the protective sleeve, so that the copper bar can be prevented from being in direct contact with the external environment, the influence of the external environment on the copper bar can be reduced, the copper bar can be prevented from being damaged by impact and the like, and the stress resistance of the whole device is better.

Description

Technical Field

[0001] The utility model relates to the field of electrical appliance testing, in particular to a special power supply for instantaneous movement testing of low-voltage electrical appliances. Background Art

[0002] A low-voltage electrical appliance is a component or device that can manually or automatically connect or disconnect a circuit according to external signals and requirements to achieve switching, control, protection, detection, transformation, and regulation of the circuit or non-electrical object. After production, in order to ensure its normal startup, a test power supply is usually used to supply power for testing.

[0003] Generally, a copper bar for supplying power to the electrical appliance is arranged outside the test power supply. By using a wire to connect the copper bar and the electrical appliance, the electrical appliance can be powered, so as to test whether the electrical appliance can start normally. For the convenience of wiring, the copper bar is generally directly arranged outside the power supply. In this way, the copper bar may be corroded under the action of the environment, and may also be damaged by other factors. This may lead to a decrease in the conduction effect of the copper bar, a decrease in the test accuracy of the device, and a poor resistance ability of the overall device. Therefore, a special power supply for instantaneous movement testing of low-voltage electrical appliances is proposed to solve the above problems. Summary of the Invention

[0004] In order to make up for the above deficiencies, the utility model provides a special power supply for instantaneous movement testing of low-voltage electrical appliances, aiming to improve the problem that "the existing copper bar of the test power supply is generally directly exposed outside the power supply and is prone to corrosion, and the overall resistance ability is poor" in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A special power supply for instantaneous movement testing of low-voltage electrical appliances, including a test power supply, a copper bar is installed at the front end of the test power supply, support feet are installed at the bottom end of the test power supply, a protection component is arranged at the front end of the test power supply, the protection component includes a fixing plate, a sliding rod is fixedly connected to the left end of the fixing plate, a slider is slidably connected to the outer wall of the sliding rod, and a fixing component is arranged at the left end of the slider.

[0006] As a further description of the above technical solution:

[0007] The fixing component includes a clamping block, the clamping block penetrates and is slidably connected to the inner wall of the slider, a clamping groove is arranged on the outer wall of the sliding rod, and the clamping groove is adapted to the clamping block.

[0008] As a further description of the above technical solution:

[0009] The front end of the clamping block is fixedly connected with a fixing spring, and the front end of the fixing spring is fixedly connected to the inner wall of the slider.

[0010] As a further description of the above technical solution:

[0011] The clamping block is arranged in an L shape, a bevel is arranged at the rear end of the clamping block, and the left end of the clamping block penetrates and is slidably connected to the left end of the slider.

[0012] As a further description of the above technical solution:

[0013] The protection component further includes a protective sleeve, the rear end of the protective sleeve is slidably connected to the front end of the test power supply, the bottom end of the protective sleeve penetrates and is slidably connected with a baffle plate, the top end of the baffle plate is fixedly connected with a protection spring, and the top end of the protection spring is fixedly connected to the inner wall of the protective sleeve.

[0014] As a further description of the above technical solution:

[0015] The top end of the slider is hinged with a hinge rod, and the right end of the hinge rod is hinged to the left end of the protective sleeve.

[0016] As a further description of the above technical solution:

[0017] There are multiple groups of the hinge rods and the protective sleeves, and the multiple groups of hinge rods and protective sleeves are symmetrically arranged with the center line of the slider as the axis of symmetry. The top end of the other group of hinge rods is hinged to the bottom end of the slider.

[0018] As a further description of the above technical solution:

[0019] The right end of the slider is fixedly connected with a return spring, and the right end of the return spring is fixedly connected to the left end of the fixed plate.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by using the protective sleeve to shield the copper bar, the copper bar can be prevented from directly contacting the external environment, so that the influence of the external environment on the copper bar can be reduced, and at the same time, the copper bar can be prevented from being damaged by impact, etc. The overall device has good resistance. 2. In the utility model, by using the protection spring to connect the protective sleeve and the baffle plate, during electrical testing, the protective sleeve can cover the wire connection end and the copper bar together, and at the same time, the baffle plate can clamp the wire to prevent it from shaking. The overall device has good safety during use. Description of the Drawings

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the test power supply in the utility model;

[0024] Figure 3 It is a three-dimensional structural sectional schematic diagram of the protection component in the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure section split of the fixing component in the present utility model.

[0026] Legend:

[0027] 1. Test power supply; 2. Support feet; 3. Copper busbar; 4. Protection component; 41. Protection sleeve; 42. Protection spring; 43. Baffle; 44. Hinge rod; 45. Fixed plate; 46. Slide rod; 47. Return spring; 48. Slide block; 5. Fixing component; 51. Clamping block; 52. Fixed spring; 53. Card slot. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figure 1 - Figure 3 , an embodiment provided by the present utility model: a special power supply for instantaneous testing of low-voltage electrical appliances, including a test power supply 1 for providing power to the electrical appliance. A copper busbar 3 for connecting wires is installed at the front end of the test power supply 1. Support feet 2 for supporting the entire device are installed at the bottom end of the test power supply 1. The support feet 2 are made of rubber material and can isolate static electricity while supporting the test power supply 1. A protection component 4 for protecting the copper busbar 3 is provided at the front end of the test power supply 1. The protection component 4 includes a fixed plate 45 for supporting the slide rod 46. A slide rod 46 for guiding the slide block 48 is fixedly connected to the left end of the fixed plate 45. A slide block 48 for driving the hinge rod 44 to rotate and move is slidably connected to the outer wall of the slide rod 46. A fixing component 5 for fixing the slide block 48 is provided at the left end of the slide block 48.

[0030] Refer to Figure 3 , Figure 4The fixing assembly 5 includes a block 51 for fixing the slider 48. The block 51 passes through and is slidably connected to the inner wall of the slider 48. The block 51 can slide at the inner front end of the slider 48. The outer wall of the slide bar 46 is provided with a slot 53 for accommodating the block 51. The slot 53 and the block 51 are adapted. When the block 51 is inserted into the slot 53, the block 51 will be fixed and cannot move to the left. The front end of the block 51 is fixedly connected with a fixing spring 52 for pushing the block 51. The front end of the fixing spring 52 is fixedly connected to the inner wall of the slider 48. The fixing spring 52 will always push the block 51 backward. The block 51 is set to be L-shaped. The rear end of the block 51 is provided with an inclined surface. When the inclined surface is squeezed, the block 51 is forced to move forward. The left end of the block 51 passes through and is slidably connected to the left end of the slider 48. The block 51 can be driven to move forward and out of the slot 53 by toggling the left end of the block 51.

[0031] Reference Figure 1 - Figure 3 The protective assembly 4 also includes a protective sleeve 41 for protecting the copper busbar 3. The protective sleeve 41 is hollow inside and has an opening at the front end for accommodating the copper busbar 3. The rear end of the protective sleeve 41 is slidably connected to the front end of the test power supply 1, and the protective sleeve 41 can slide up and down at the front end of the test power supply 1. The bottom end of the protective sleeve 41 passes through and is slidably connected with a baffle 43 for closing the front end opening of the protective sleeve 41. The top end of the baffle 43 is fixedly connected with a protective spring 42 for pushing the baffle 43. The top end of the protective spring 42 is fixedly connected to the inner wall of the protective sleeve 41. The protective spring 42 will always push the baffle 43 downward to close the front end opening of the protective sleeve 41. The top end of the slider 48 is hinged with a hinged rod 44 for driving the protective sleeve 41 to move upward. The right end of the hinged rod 44 is hinged to the left end of the protective sleeve 41. When the slider 48 moves to the right, it will drive the left end of the hinged rod 44 to move to the right. At this time, the right end of the hinged rod 44 will lift the protective sleeve 41 upward.

[0032] Reference Figure 1 - Figure 3 There are multiple groups of hinged rods 44 and protective sleeves 41, and the multiple groups of hinged rods 44 and protective sleeves 41 are symmetrically arranged with the center line of the slider 48 as the symmetry axis. Two groups of protective sleeves 41 will cover the copper bus 3 from the upper and lower ends. The top end of the other group of hinged rods 44 is hinged at the bottom end of the slider 48. When the slider 48 moves to the right, the left ends of the two groups of hinged rods 44 will move to the right synchronously. The right end of the slider 48 is fixedly connected with a reset spring 47 for driving the slider 48 to move and reset. The right end of the reset spring 47 is fixedly connected to the left end of the fixed plate 45, and the reset spring 47 will always push the slider 48 to the left.

[0033] Working principle: when the copper busbar 3 needs to be used to connect the wires, the slider 48 can be pushed to the right to drive the two sets of hinged rods 44 to move to the right. The two sets of hinged rods 44 will respectively squeeze the two sets of protective sleeves 41 to move them outward, so that the copper busbar 3 can be exposed. At this time, the slider 48 is released, and the fixing spring 52 will push the block 51 to make it fit into the slot 53. In this way, the block 51 and the slider 48 will be fixed and cannot move to the left, and the protective sleeve 41 cannot move to the middle position. The operator can install the wire at the rear end of the copper busbar 3.

[0034] When the wires are fixed, the clamping block 51 can be pushed forward to disengage it from the inside of the clamping slot 53. At this time, the reset spring 47 will push the slider 48 to move it to the left and reset it. At the same time, the slider 48 will pull the two sets of hinged rods 44 to the left. The two sets of hinged rods 44 will pull the two sets of protective sleeves 41 to drive the two sets of baffles 43 to clamp and fix the wires.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power supply for low voltage electrical appliance instantaneous test, comprising a test power supply (1), characterized in that: A copper busbar (3) is installed at the front end of the test power supply (1), a supporting foot (2) is installed at the bottom end of the test power supply (1), a protective component (4) is arranged at the front end of the test power supply (1), and the protective component (4) comprises a fixing plate (45), a sliding rod (46) is fixedly connected to the left end of the fixing plate (45), a sliding block (48) is slidably connected to the outer wall of the sliding block (46), and a fixing component (5) is arranged at the left end of the sliding block (48).

2. A power supply for low voltage electrical appliance instantaneous test according to claim 1, characterized in that: The fixing assembly (5) comprises a clamping block (51), the clamping block (51) penetrates through and is slidably connected to the inner wall of the sliding block (48), and the outer wall of the sliding rod (46) is provided with a clamping groove (53), and the clamping groove (53) and the clamping block (51) are adapted to each other.

3. A power supply for low voltage electrical appliance instantaneous test according to claim 2, characterized in that: A fixing spring (52) is fixedly connected to the front end of the clamping block (51), and the front end of the fixing spring (52) is fixedly connected to the inner wall of the sliding block (48).

4. A power supply for low voltage electrical appliance instantaneous test according to claim 2, characterized in that: The clamping block (51) is arranged in an L shape, a rear end of the clamping block (51) is provided with an inclined surface, and the left end of the clamping block (51) penetrates and is slidably connected to the left end of the sliding block (48).

5. A power supply for low voltage electrical appliance instantaneous test according to claim 1, characterized in that: The protection assembly (4) further comprises a protection sleeve (41), the rear end of the protection sleeve (41) being slidably connected to the front end of the test power supply (1), the bottom end of the protection sleeve (41) being penetrated by and slidably connected to a baffle (43), the top end of the baffle (43) being fixedly connected to a protection spring (42), and the top end of the protection spring (42) being fixedly connected to the inner wall of the protection sleeve (41).

6. A power supply for low voltage electrical appliance instantaneous test according to claim 5, characterized in that: A hinged rod (44) is hinged at the top end of the sliding block (48), and the right end of the hinged rod (44) is hinged to the left end of the protective sleeve (41).

7. A power supply for low voltage electrical appliance instantaneous test according to claim 6, characterized in that: The hinged rods (44) and protective sleeves (41) are provided in multiple groups, and the multiple groups of hinged rods (44) and protective sleeves (41) are symmetrically arranged with the center line of the slider (48) as a symmetry axis, and the top end of another group of hinged rods (44) is hinged to the bottom end of the slider (48).

8. A power supply for low voltage electrical appliance instantaneous test according to claim 1, characterized in that: The right end of the sliding block (48) is fixedly connected to a return spring (47), and the right end of the return spring (47) is fixedly connected to the left end of the fixed plate (45).

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