Electric heating wire deflection test equipment

Abstract

The utility model discloses heating wire deflection test equipment, which comprises a bottom plate, an inverted L-shaped vertical frame is arranged on the upper surface of the bottom plate, an electric push rod is vertically arranged on the lower surface of the horizontal part of the vertical frame, and a telescopic rod of the electric push rod faces downwards and is provided with an extrusion head; two supporting seats are arranged on the upper surface of the bottom plate in a left-right symmetry mode, n-shaped blocks are vertically arranged on the upper surfaces of the supporting seats, and screw rods penetrating through the n-shaped blocks are vertically arranged on the upper surfaces of the n-shaped blocks. According to the utility model, the electric push rod extends out to drive the extrusion head to move downwards, the extrusion head slowly presses the electric heating wire downwards, so that the electric heating wire is slowly changed into a V shape from a horizontal shape, and the V shape of the electric heating wire is just aligned with a rear scale mark; in the process that the electric heating wire is extruded, the extrusion head can properly leave the electric heating wire, and when the electric heating wire can rebound, the extrusion head continues to move downwards until the electric heating wire cannot rebound.

Description

Technical Field

[0001] This utility model relates to the field of electric heating wire bending test, specifically an electric heating wire bending test device. Background Technology

[0002] Heating wires are widely used in heated items, such as heating elements, electric blankets, and heating rods. Made of conductive metal, heating wires generate heat when current passes through them. The fatigue performance of the metal is a crucial performance indicator. To ensure stable operation, bending tests are necessary to assess the metal's fatigue resistance. However, due to the thinness of the heating wire, existing bending and flexure testing equipment often fails to securely fix both ends, making flexure tests inconvenient.

[0003] In view of the above problems, this utility model is proposed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electric heating wire bending test device to solve the problems mentioned in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0006] This utility model provides an electric heating wire flexure testing device, including a base plate, an inverted "L"-shaped vertical frame is provided on the upper surface of the base plate, an electric push rod is vertically provided on the lower surface of the horizontal part of the vertical frame, and the extension rod of the electric push rod faces downward and is provided with a pressing head;

[0007] The upper surface of the base plate is symmetrically provided with two support seats. The upper surface of the support seats is vertically provided with a U-shaped block. The upper surface of the U-shaped block is vertically provided with a screw rod that passes through the U-shaped block. The screw rod is threaded to the upper surface of the U-shaped block. The lower surface of the screw rod is provided with a rotatable pressure plate. The upper surface of the screw rod is provided with a handle.

[0008] A scale panel is bolted to the upper surface of the base plate. The scale panel is located between the vertical frame and the support base. The scale panel has scale markings on its front side.

[0009] The upper surface of the lower plate of the C-shaped block is provided with a gasket, the upper surface of the gasket is provided with a receiving groove, and a plurality of partition pieces are provided in the receiving groove. The lower surface of the pressure plate is provided with a pressure strip, and a plurality of slots are provided on the pressure strip.

[0010] Preferably, two sliding arms are symmetrically arranged on the left side of the pressure plate, and two sliding grooves are vertically arranged on the inner wall of the vertical part of the C-shaped block. The two sliding grooves are symmetrically arranged front and back, and the end of the sliding arm away from the pressure plate is slidably installed in the sliding groove.

[0011] Preferably, the upper end of the electric actuator is provided with a hanging plate, which is installed on the lower surface of the horizontal part of the vertical frame by four bolts, and a reinforcing rib is provided between the surface of the electric actuator and the horizontal part of the vertical frame.

[0012] Preferably, two reinforcing ribs are symmetrically arranged between the two sides of the vertical portion of the vertical frame and the upper surface of the base plate.

[0013] Preferably, one end of the receiving groove passes through a gasket, and a plurality of the partition pieces are evenly spaced along the length of the receiving groove.

[0014] Preferably, the pressure strip is aligned vertically with the receiving groove, and a plurality of the slots are evenly spaced along the length of the pressure strip, and the slots are aligned vertically with the partition piece.

[0015] Preferably, the zero mark of the scale is aligned with the middle position between the two supports, and the zero mark of the scale is aligned with the extrusion head.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Place both ends of the heating wire into the receiving grooves of the left and right pads respectively, hold the handle and turn the screw. The screw can drive the pressure plate to move up and down, and the sliding arm can slide up and down in the sliding groove, thus guiding the up and down movement of the pressure plate.

[0018] When the pressure plate moves downward, the pressure strip can fully enter the receiving groove, and the partition can enter the slot. In this way, the end of the heating wire is fixed on the partition. Under the squeezing force of the pressure plate and the pressure strip, the end of the heating wire can be firmly fixed in the receiving groove. Thus, both ends of the heating wire are firmly fixed, and the middle position of the heating wire is just below the extrusion head.

[0019] The electric actuator extends, driving the extrusion head downwards. The extrusion head slowly presses down on the heating wire, causing the heating wire to gradually change from a horizontal position to a V-shape, and the V-shape of the heating wire is aligned with the scale markings at the rear. During the extrusion process, the extrusion head can appropriately move away from the heating wire. When the heating wire can spring back, the extrusion head continues to move downwards until the heating wire can no longer spring back.

[0020] When the heating wire fails to spring back, it forms a V-shape. The angle of the heating wire can be recorded by the scale markings on the back, thus determining the maximum bending angle that the heating wire can withstand. Throughout the process, both ends of the heating wire are firmly and effectively fixed, making the test results more accurate. Attached Figure Description

[0021] Figure 1 This is a perspective view of the entire utility model;

[0022] Figure 2 This is a perspective view of the C-shaped block of this utility model;

[0023] Figure 3 This is a three-dimensional view of the pressure strip of this utility model.

[0024] In the diagram: 1. Base plate; 11. Vertical frame; 12. Reinforcing rib plate; 13. Hanging plate; 14. Electric actuator; 15. Extrusion head; 16. Support base; 17. C-shaped block; 171. Slide groove; 18. Screw; 181. Tightening handle; 182. Pressure plate; 183. Slide arm; 2. Gasket; 21. Receiving groove; 22. Partition plate; 3. Pressure strip; 31. Slot; 4. Scale panel; 41. Scale marking. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figure 1-3 As shown, an electric heating wire flexure test device includes a base plate 1. The upper surface of the base plate 1 is provided with an inverted "L"-shaped vertical frame 11. The lower surface of the horizontal part of the vertical frame 11 is vertically provided with an electric push rod 14. The telescopic rod of the electric push rod 14 faces downward and is provided with an extrusion head 15. When the electric push rod 14 extends, it can drive the extrusion head 15 to move downward.

[0028] Two support seats 16 are symmetrically arranged on the upper surface of the base plate 1. A U-shaped block 17 is vertically arranged on the upper surface of the support seat 16. A screw 18 is vertically arranged through the U-shaped block 17 on the upper surface of the U-shaped block 17. The screw 18 is threadedly connected to the upper surface of the U-shaped block 17. A rotatable pressure plate 182 is arranged on the lower surface of the screw 18. A handle 181 is arranged on the upper surface of the screw 18. By holding the handle 181 and rotating it, the screw 18 can be driven to move up and down.

[0029] A scale panel 4 is bolted to the upper surface of the base plate 1. The scale panel 4 is located between the vertical frame 11 and the support base 16. A scale mark 41 is provided on the front of the scale panel 4.

[0030] The upper surface of the lower plate of the C-shaped block 17 is provided with a gasket 2, the upper surface of the gasket 2 is provided with a receiving groove 21, and a plurality of partition pieces 22 are provided in the receiving groove 21. The lower surface of the pressure plate 182 is provided with a pressure strip 3, and a plurality of slots 31 are provided on the pressure strip 3.

[0031] Two sliding arms 183 are symmetrically arranged on the left side of the pressure plate 182. Two sliding grooves 171 are vertically arranged on the inner wall of the vertical part of the C-shaped block 17. The two sliding grooves 171 are symmetrically arranged front and back. The end of the sliding arm 183 away from the pressure plate 182 is slidably installed in the sliding groove 171.

[0032] The upper end of the electric actuator 14 is provided with a hanging plate 13, which is installed on the lower surface of the horizontal part of the vertical frame 11 by four bolts. A reinforcing rib plate 12 is provided between the surface of the electric actuator 14 and the horizontal part of the vertical frame 11.

[0033] Two reinforcing ribs 12 are symmetrically arranged between the two sides of the vertical part of the vertical frame 11 and the upper surface of the base plate 1.

[0034] One end of the receiving groove 21 passes through the gasket 2, and multiple partition pieces 22 are evenly spaced along the length of the receiving groove 21.

[0035] The pressure strip 3 is aligned vertically with the receiving groove 21, and multiple slots 31 are evenly spaced along the length of the pressure strip 3. The slots 31 and the partition piece 22 are aligned vertically.

[0036] The zero mark of the scale mark 41 is aligned with the middle position between the two support seats 16, and the zero mark of the scale mark 41 is aligned with the extrusion head 15.

[0037] In summary: Place both ends of the heating wire into the receiving grooves 21 of the left and right pads 2 respectively, hold the handle 181 and turn the screw 18. In this way, the screw 18 can drive the pressure plate 182 to move up and down, and the sliding arm 183 can slide up and down in the sliding groove 171, thus guiding the up and down movement of the pressure plate 182.

[0038] When the pressure plate 182 moves downward, the pressure strip 3 can fully enter the receiving groove 21, and the partition piece 22 can enter the slot 31. In this way, the end of the heating wire is fixed on the partition piece 22. Under the squeezing force of the pressure plate 182 and the pressure strip 3, the end of the heating wire can be firmly fixed in the receiving groove 21. In this way, both ends of the heating wire are firmly fixed, and the middle position of the heating wire is just below the extrusion head 15.

[0039] The electric push rod 14 extends, driving the extrusion head 15 to move downwards. The extrusion head 15 slowly presses down on the heating wire, causing the heating wire to slowly change from a horizontal position to a V-shape, and the V-shape of the heating wire is aligned with the scale mark 41 at the rear. During the process of the heating wire being extruded, the extrusion head 15 can appropriately move away from the heating wire. When the heating wire can spring back, the extrusion head 15 continues to move downwards until the heating wire can no longer spring back.

[0040] When the heating wire fails to spring back, it forms a V-shape. The angle of the heating wire can be recorded by the scale mark 41 on the back, thus obtaining the maximum bending angle that the heating wire can withstand. Throughout the process, both ends of the heating wire can be firmly and effectively fixed, making the test results more accurate.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heating wire flexure testing device, characterized in that: Includes a base plate (1), the upper surface of which is provided with an inverted "L" shaped vertical frame (11), the lower surface of the horizontal part of the vertical frame (11) is provided with an electric push rod (14), the telescopic rod of the electric push rod (14) faces downward and is provided with an extrusion head (15). The upper surface of the base plate (1) is symmetrically provided with two support seats (16). The upper surface of the support seat (16) is vertically provided with a U-shaped block (17). The upper surface of the U-shaped block (17) is vertically provided with a screw (18) that passes through the U-shaped block (17). The screw (18) is threadedly connected to the upper surface of the U-shaped block (17). The lower surface of the screw (18) is provided with a rotatable pressure plate (182). The upper surface of the screw (18) is provided with a handle (181). The upper surface of the base plate (1) is bolted with a scale panel (4), which is located between the vertical frame (11) and the support base (16). The scale panel (4) has scale markings (41) on its front side. The upper surface of the lower plate of the shaped block (17) is provided with a gasket (2), the upper surface of the gasket (2) is provided with a receiving groove (21), a plurality of partition pieces (22) are provided in the receiving groove (21), the lower surface of the pressure plate (182) is provided with a pressure strip (3), and a plurality of slots (31) are provided on the pressure strip (3).

2. The electric heating wire bending test device according to claim 1, characterized in that: Two sliding arms (183) are symmetrically arranged on the left side of the pressure plate (182). Two sliding grooves (171) are vertically arranged on the inner wall of the vertical part of the shaped block (17). The two sliding grooves (171) are symmetrically arranged in front and behind. The end of the sliding arm (183) away from the pressure plate (182) is slidably installed in the sliding groove (171).

3. The electric heating wire bending test device according to claim 1, characterized in that: The upper end of the electric actuator (14) is provided with a hanging plate (13), which is installed on the lower surface of the horizontal part of the vertical frame (11) by four bolts. A reinforcing rib plate (12) is provided between the surface of the electric actuator (14) and the horizontal part of the vertical frame (11).

4. The heating wire bending test device according to claim 1, characterized in that: Two reinforcing ribs (12) are symmetrically arranged between the two sides of the vertical part of the vertical frame (11) and the upper surface of the base plate (1).

5. The heating wire bending test device according to claim 1, characterized in that: One end of the receiving groove (21) passes through the gasket (2), and a plurality of the partition pieces (22) are evenly spaced along the length of the receiving groove (21).

6. The heating wire bending test device according to claim 5, characterized in that: The pressure strip (3) is aligned vertically with the receiving groove (21), and a plurality of slots (31) are evenly spaced along the length of the pressure strip (3). The slots (31) and the partition piece (22) are aligned vertically.

7. The electric heating wire bending test device according to claim 1, characterized in that: The zero mark of the scale mark (41) is aligned with the middle position between the two support seats (16), and the zero mark of the scale mark (41) is aligned with the extrusion head (15).

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