Stretch resistance detection device for power line of household electrical appliance

Abstract

The utility model discloses a tensile detection device for a power line of a household appliance, which relates to the field of power line detection and comprises a workbench, a control panel arranged on one side of the workbench, a fixing plate arranged in the middle of the top end of the workbench, and detection components symmetrically arranged on two sides of the fixing plate and matched with the workbench. Clamping assemblies are arranged at the top ends of the two detection assemblies, and a sleeve connecting rod is arranged between the two clamping assemblies; and one side of the fixed plate is provided with a measuring scale matched with the two groups of detection assemblies. According to the utility model, under the action of the detection assembly and the measuring scale, tensile detection operation is carried out on the power line of the household electrical appliance, so that the power line can still maintain good conductivity and mechanical strength after bearing a certain degree of tensile force, and the occurrence of situations such as electrical appliance damage and the like caused by power line faults is avoided; and the reliability of the power line is improved.

Description

Technical Field

[0001] The utility model relates to the field of power line detection, in particular to a tensile strength detection device for a power line of a household appliance. Background Art

[0002] The power cord of a household appliance is a cable that connects the household appliance to the power socket. It carries the task of transmitting electrical energy from the power source to the electrical equipment. The power cord is usually composed of multiple wires, including a live wire, a neutral wire and a ground wire. The live wire is responsible for transmitting electrical energy, the neutral wire is responsible for returning unused electrical energy to the power source, and the ground wire is used for safety protection, connecting the metal casing of the appliance to the ground to prevent damage when the appliance leaks electricity.

[0003] During the production process of power cords, it is necessary to conduct tensile testing on the power cords. This is mainly to ensure that the power cords can withstand the tensile force caused by external forces during use, and will not be damaged due to excessive stretching, resulting in power transmission interruption and other situations. The tensile test can evaluate the material, structure and connection firmness of the power cord to ensure that it can still maintain good conductivity and mechanical strength after bearing a certain degree of tensile force. Through this test, it can be ensured that the power cord can safely and reliably serve household appliances and other equipment, and prevent the occurrence of electrical damage due to power cord failure.

[0004] For example, Chinese patent No. CN218865645U discloses a tensile strength detection device for household appliance power cords, comprising a box body, a movable mechanism provided on the top of the box body, a card plate welded to the bottom of the movable mechanism, a pressure tester fixedly provided on the top of the card plate, an adjustment mechanism provided in the inner cavity of the box body, support plates welded to both sides of the box body, a winding roller rotatably connected to the opposite side of the support plate, a first motor fixedly connected to one side of the support plate, a rotating shaft of the first motor passing through the support plate and fixedly connected to the front end of the winding roller, and the device can stably detect the tensile strength of the power cord through the cooperation of the second motor, the first gear, the threaded tube, the second gear and the threaded rod.

[0005] However, before the device performs tensile testing, the power cord needs to be passed through the sleeve. This step requires a certain degree of precision. When performing large-scale testing operations, operators need to perform this step frequently. However, this operation cannot be completed quickly, resulting in slow testing efficiency. In addition, the power cord of household appliances usually has a plug at one end. Therefore, after the power cord is installed in the household appliance, it is difficult to perform tensile testing through the device. During use, it has certain limitations.

[0006] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0007] In view of the problems in the related art, the present invention proposes a tensile strength detection device for a household appliance power cord to overcome the above technical problems existing in the existing related art.

[0008] To this end, the specific technical solutions adopted in this utility model are as follows:

[0009] A tensile testing device for a household appliance power cord comprises a workbench, a control panel being provided on one side of the workbench, a fixing plate being provided at the middle position of the top of the workbench, detection components cooperating with the workbench being symmetrically provided on both sides of the fixing plate, clamping components being provided at the top of both groups of detection components, a sleeve connecting rod being provided between the two groups of clamping components; and a measuring ruler cooperating with the two groups of detection components being provided on one side of the fixing plate.

[0010] Furthermore, in order to be able to perform tensile testing on the power cord of household appliances, the detection component includes a limit groove symmetrically opened on the top surface of the workbench and matched with the fixed plate, a slider matched with the workbench is provided inside the limit groove, a support plate matched with the clamping component is provided on one side of the slider, and an electric push rod matched with the workbench is provided on one side of the support plate; a spring is provided between the slider and the fixed plate; the shape of the support plate is L-shaped.

[0011] Furthermore, in order to facilitate the fixing or replacement of the power cord, the clamping assembly includes a fixed seat arranged at the top of the slider, a limiting plate is provided on one side of the top of the fixed seat, a power cord matching with the fixed seat is provided on one side of the limiting plate, a movable pressure block matching with the fixed seat is provided on the other side of the power cord, a rotating block matching with the fixed seat is provided on the other side of the movable pressure block, a limiting rod inserted through the fixed seat is provided at the other end of the rotating block, a rotating rod is provided at the other end of the limiting rod, and an electric push rod matching with the support plate is provided at the other end of the rotating rod; a gap is left at the position where the fixed seat contacts the limiting rod; the limiting plate is L-shaped, and the position where the limiting plate contacts the power cord is rounded; the movable pressure block is in the shape of an inverted triangle, and both sides are rounded.

[0012] The beneficial effects of the utility model are:

[0013] 1. Under the action of the detection component and the measuring ruler, the utility model realizes the tensile strength detection operation of the power cord of the household appliance, ensuring that the power cord can still maintain good conductivity and mechanical strength after bearing a certain degree of tensile force, avoiding the occurrence of damage to the appliance due to power cord failure, and improving the reliability of the power cord.

[0014] 2. Under the action of the clamping component, the utility model only needs to place a section of the power cord or the entire power cord on the top of the clamping component to complete the clamping and fixing of the power cord, ensuring that the power cord of the household appliance can still be clamped and fixed after being installed in the household appliance, increasing the application scenarios for tensile strength testing operations, reducing the difficulty of clamping and fixing, and thus relatively improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a structural schematic diagram of a household appliance power cord stretch resistance detection device according to an embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0018] Figure 3 This is a cross-sectional view of a tensile strength detection device for a household appliance power cord according to an embodiment of the present utility model;

[0019] Figure 4 It is a three-dimensional assembly diagram of a clamping component in a tensile strength detection device for a power cord of a household appliance according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Workbench; 2. Control panel; 3. Fixed plate; 4. Detection assembly; 401. Limiting groove; 402. Slider; 403. Support plate; 404. Electric push rod 1; 405. Spring; 5. Clamping assembly; 501. Fixed seat; 502. Limiting plate; 503. Movable pressure block; 504. Rotating block; 505. Limiting rod; 506. Rotating rod; 507. Electric push rod 2; 6. Sleeve connecting rod; 7. Measuring ruler DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the present utility model, a tensile strength detection device for a household appliance power cord is provided.

[0024] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figures 1-4 As shown, the tensile strength testing device for the power cord of a household appliance according to an embodiment of the present invention includes a workbench 1, a control panel 2 is provided on one side of the workbench 1, a fixing plate 3 is provided at the middle position of the top of the workbench 1, and detection components 4 that cooperate with the workbench 1 are symmetrically provided on both sides of the fixing plate 3, and the tops of the two groups of detection components 4 are respectively provided with clamping components 5, and a sleeve connecting rod 6 is provided between the two groups of clamping components 5; a measuring ruler 7 that cooperates with the two groups of detection components 4 is provided on one side of the fixing plate 3.

[0025] With the help of the above-mentioned technical solution, the utility model realizes the tensile strength detection operation of the power cord of household appliances under the action of the detection component 4 and the measuring ruler 7, ensuring that the power cord can still maintain good conductivity and mechanical strength after bearing a certain degree of tensile force, avoiding the occurrence of damage to the appliance due to power cord failure, and improving the reliability of the power cord; under the action of the clamping component 5, it is only necessary to place a certain section of the power cord or the entire power cord on the top of the clamping component 5 to complete the clamping and fixing of the power cord, ensuring that the power cord of the household appliance can still be clamped and fixed after being installed in the household appliance, increasing the application scenarios of the tensile strength detection operation, reducing the difficulty of clamping and fixing, and thus relatively improving efficiency.

[0026] It needs to be explained that the anti-stretching detection device of the present invention can not only perform anti-stretching detection operations on the power cords of household appliances, but also adjust the parameters of the detection component 4 and the clamping component 5. According to different parameters, it can adapt to the anti-stretching detection operations of the power cords of other different products, and improve the efficiency of the anti-stretching detection of the power cords of other different products.

[0027] In one embodiment, for the above-mentioned detection component 4, the detection component 4 includes a limiting groove 401 symmetrically opened on the top surface of the workbench 1 and matched with the fixed plate 3, and a slider 402 matching with the workbench 1 is provided inside the limiting groove 401, and a support plate 403 matching with the clamping component 5 is provided on one side of the slider 402, and an electric push rod 404 matching with the workbench 1 is provided on one side of the support plate 403; a spring 405 is provided between the slider 402 and the fixed plate 3; the shape of the support plate 403 is L-shaped; thereby, the tensile strength detection operation of the power cord of the household appliance can be performed.

[0028] It should be explained that the pressure and tensile force applied by the electric push rod 404 can be uploaded to the control panel 2 through the sensor provided in the electric push rod 404. The pressure sensor equipped in the electric push rod 404 can monitor and measure the pressure and tensile force applied to the piston rod. When the electric push rod 404 is working, the pressure sensor will convert the pressure data into an electrical signal and upload it to the control panel 2. This is the existing technology and will not be explained in detail here.

[0029] The working principle of the detection component 4 is as follows: after the power cord is fixed at the clamping component 5, the control panel 2 is used to control and start the electric push rods 404 in the two groups of detection components 4. Under the shortening effect of the output shafts of the two groups of electric push rods 404 and with the cooperation of the slider 402, the two groups of support plates 403 are driven to move away from each other in the horizontal direction along the limit groove 401, and the distance moved by the two groups of sliders 402 compared to the initial position is observed and recorded by the measuring ruler 7. Combined with the electrical signal uploaded by the electric push rod 404 received by the control panel 2, the tensile strength detection operation of the power cord is realized.

[0030] In one embodiment, for the above-mentioned clamping assembly 5, the clamping assembly 5 includes a fixed seat 501 arranged at the top of the slider 402, a limit plate 502 is provided on one side of the top of the fixed seat 501, a power cord that matches the fixed seat 501 is provided on one side of the limit plate 502, a movable pressing block 503 that matches the fixed seat 501 is provided on the other side of the power cord, a rotating block 504 that matches the fixed seat 501 is provided on the other side of the movable pressing block 503, and a rotating block 504 that is inserted into the fixed seat 501 is provided on the other end of the rotating block 504. 1, the other end of the limiting rod 505 is provided with a rotating rod 506, and the other end of the rotating rod 506 is provided with an electric push rod 507 that cooperates with the support plate 403; a gap is left at the position where the fixing seat 501 contacts the limiting rod 505; the shape of the limiting plate 502 is L-shaped, and the position where the limiting plate 502 contacts the power cord is provided with a rounded corner; the shape of the movable pressing block 503 is an inverted triangle, and the two sides are provided with rounded corners; so that the power cord can be fixed or replaced more conveniently.

[0031] The working principle of the clamping assembly 5 is as follows: when the power cord needs to be fixed, the power cord is first placed on the top of the fixing seat 501 in the two groups of clamping assemblies 5, and then the control panel 2 is used to control and start the electric push rod 2 507. Under the shortening effect of the output shaft of the electric push rod 2 507, the rotating rod 506 is driven to rotate. Under the rotation effect of the rotating rod 506, the limiting rod 505 is driven to move along the gap between it and the fixing seat 501 in the direction away from the fixing plate 3. Under the movement effect of the limiting rod 505, the rotating block 504 is driven to rotate. Under the rotation effect of the rotating block 504, the two groups of movable pressing blocks 503 are driven. With the cooperation of the sleeve connecting rod 6, the power cord is squeezed in a direction parallel to the power cord, so that the power cord contacts the rounded corner at the limiting plate 502, thereby achieving clamping and fixing of the power cord.

[0032] When the power cord needs to be replaced, the control panel 2 is used to control and start the electric push rod 2 507. Under the extension of the output shaft of the electric push rod 2 507, the rotating rod 506 is driven to rotate. Under the rotation of the rotating rod 506, the limiting rod 505 is driven to move along the gap between the fixing seat 501 toward the direction close to the fixing plate 3. Under the movement of the limiting rod 505, the rotating block 504 is driven to rotate. Under the rotation of the rotating block 504, the two groups of movable pressing blocks 503 are driven, and with the cooperation of the sleeve connecting rod 6, the direction parallel to the power cord is kept away from the power cord. At this time, the power cord can be replaced.

[0033] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0034] In actual application, the power cord is first placed on the top of the fixed seat 501 in the two groups of clamping assemblies 5, and then the control panel 2 is used to control and start the electric push rod 2 507. Under the shortening effect of the output shaft of the electric push rod 2 507, the rotating rod 506 is driven to rotate. Under the rotation effect of the rotating rod 506, the limiting rod 505 is driven to move along the gap between the fixing seat 501 and the fixing plate 3. Under the movement effect of the limiting rod 505, the rotating block 504 is driven to rotate. Under the rotation effect of the rotating block 504, the two groups of movable pressing blocks 503 are driven. With the cooperation of the sleeve connecting rod 6, the power cord is squeezed in a direction parallel to the power cord, so that the power cord contacts the rounded corner at the limiting plate 502, thereby achieving clamping and fixing of the power cord.

[0035] Then, the control panel 2 is used to control and start the electric push rods 404 in the two detection components 4. Under the shortening effect of the output shafts of the two electric push rods 404 and with the cooperation of the sliders 402, the two support plates 403 are driven to move away from each other in the horizontal direction along the limit grooves 401. The distance moved by the two sliders 402 compared to the initial position is observed and recorded by the measuring ruler 7. Combined with the electrical signal uploaded by the electric push rods 404 received by the control panel 2, the tensile strength test operation of the power cord is realized.

[0036] After completing the inspection operation, the control panel 2 is used to control and start the electric push rod 2 507 in the clamping assembly 5. Under the extension of the output shaft of the electric push rod 2 507, the rotating rod 506 is driven to rotate. Under the rotation of the rotating rod 506, the limiting rod 505 is driven to move along the gap between the fixing seat 501 toward the direction close to the fixing plate 3. Under the movement of the limiting rod 505, the rotating block 504 is driven to rotate. Under the rotation of the rotating block 504, the two groups of movable pressing blocks 503 are driven, and with the cooperation of the sleeve connecting rod 6, the direction parallel to the power cord is maintained away from the power cord. At this time, the power cord can be disassembled and replaced.

[0037] The working principles of the detection component 4 and the clamping component 5 are as described above.

[0038] To sum up, with the help of the above-mentioned technical scheme of the present invention, the present invention realizes the tensile strength detection operation of the power cord of household appliances under the action of the detection component 4 and the measuring ruler 7, ensuring that the power cord can still maintain good conductivity and mechanical strength after bearing a certain degree of tensile force, avoiding the occurrence of damage to appliances due to power cord failure, and improving the reliability of the power cord; under the action of the clamping component 5, it is only necessary to place a certain section of the power cord or the entire power cord on the top of the clamping component 5 to complete the clamping and fixing of the power cord, ensuring that the power cord of the household appliance can still be clamped and fixed after being installed in the household appliance, increasing the application scenarios of the tensile strength detection operation, reducing the difficulty of clamping and fixing, and thus relatively improving efficiency.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tensile testing device for a household appliance power cord, comprising a workbench (1), characterized in that: A control panel (2) is provided on one side of the workbench (1), a fixing plate (3) is provided at the middle position of the top of the workbench (1), and detection components (4) that match the workbench (1) are symmetrically provided on both sides of the fixing plate (3), and clamping components (5) are provided at the top of two groups of the detection components (4), and a sleeve connecting rod (6) is provided between the two groups of the clamping components (5); A measuring ruler (7) that matches the two groups of detection components (4) is provided on one side of the fixing plate (3).

2. The anti-stretching detection device for a household appliance power cord according to claim 1, characterized in that: The detection component (4) includes a limiting groove (401) symmetrically arranged on the top surface of the workbench (1) and cooperating with the fixing plate (3); a slider (402) cooperating with the workbench (1) is provided inside the limiting groove (401); a support plate (403) cooperating with the clamping component (5) is provided on one side of the slider (402); and an electric push rod (404) cooperating with the workbench (1) is provided on one side of the support plate (403); A spring (405) is provided between the slider (402) and the fixing plate (3).

3. The anti-stretching detection device for a household appliance power cord according to claim 2, characterized in that: The support plate (403) is in an L-shape.

4. The anti-stretching detection device for a household appliance power cord according to claim 3, characterized in that: The clamping assembly (5) comprises a fixed seat (501) arranged at the top of the slider (402), a limiting plate (502) is arranged on one side of the top of the fixed seat (501), a power cord matched with the fixed seat (501) is arranged on one side of the limiting plate (502), a movable pressure block (503) matched with the fixed seat (501) is arranged on the other side of the power cord, a rotating block (504) matched with the fixed seat (501) is arranged on the other side of the movable pressure block (503), a limiting rod (505) inserted into the fixed seat (501) is arranged at the other end of the rotating block (504), a rotating rod (506) is arranged at the other end of the limiting rod (505), and an electric push rod 2 (507) matched with the support plate (403) is arranged at the other end of the rotating rod (506).

5. The anti-stretching detection device for a household appliance power cord according to claim 4, characterized in that: A gap is left at the position where the fixing seat (501) contacts the limiting rod (505).

6. The anti-stretching detection device for a household appliance power cord according to claim 4, characterized in that: The limiting plate (502) is in an L-shape, and a rounded corner is provided at the position where the limiting plate (502) contacts the power line.

7. The anti-stretching detection device for a household appliance power cord according to claim 4, characterized in that: The movable pressing block (503) is in the shape of an inverted triangle, and both sides are rounded.

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