Heating wire resistance measuring device
By designing a heating wire resistance measuring device with a clamping block and a driving mechanism, the problem of inconsistent contact pressure in traditional manual measurement was solved, thus improving the accuracy and efficiency of heating wire resistance measurement.
Patent Information
- Application Number
- CN202423151030.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-20
AI Technical Summary
When manually measuring the resistance of a heating wire in the traditional way, it is difficult to maintain a consistent contact pressure, which leads to inconsistent measurement results and reduces the accuracy of the measurement.
A heating wire resistance measuring device was designed, including a clamping block, a test electrode, and a driving mechanism. The clamping block clamps the heating wire to form a circuit, which is fixedly connected to the probe of a multimeter to ensure consistent contact pressure during each measurement.
It improves the accuracy and efficiency of heating wire resistance measurement, reduces the labor intensity of manual operation, simplifies the measurement process, and enhances measurement accuracy and work efficiency.
Smart Images
Figure CN223857300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measuring device technology, specifically to a heating wire resistance measuring device. Background Technology
[0002] With the widespread application of electric heating equipment, how to efficiently and accurately monitor the performance of heating elements (such as heating wires) has become an important issue. As a core component in electric heating equipment, the resistance value of the heating wire is closely related to heating efficiency, service life, and safety. Therefore, accurate measurement of the heating wire resistance is of great significance.
[0003] Currently, the multimeter, as a common electrical measuring tool, is widely used for measuring voltage, current, and resistance. When using a multimeter to measure the resistance of a heating wire, first set the multimeter to the resistance range (Ω range), then contact the two probes of the multimeter with the two ends of the heating wire. The multimeter applies a small current to the heating wire through its internal circuitry and calculates the resistance value based on the changes in current and voltage, ultimately displaying the resistance value on the screen.
[0004] Currently, the common method for testing the resistance of heating wires is to manually contact the heating wire with the probes on a multimeter. Traditional manual measurement requires the operator to firmly hold both the probes and the heating wire with both hands. To ensure proper contact between the probes and the heating wire, workers typically wear insulated gloves and pinch the probes and heating wire together with their fingers. While this method can measure the resistance of the heating wire, when measuring multiple heating wires of the same specification, it is difficult to maintain consistent contact pressure during manual measurement. If the pressure applied to the probe is insufficient, the contact area may be small, leading to increased contact resistance and inconsistent measurement results, thus reducing the accuracy of the measurement. Utility Model Content
[0005] This invention proposes a heating wire resistance measuring device to ensure consistent contact pressure during each measurement, thereby improving measurement accuracy.
[0006] The technical solution of this utility model is as follows: A heating wire resistance measuring device includes a multimeter and a base plate. The base plate is connected to a placement plate for placing the heating wire via a support column. On the side of the base plate near the placement plate, there are a first clamping block and a second clamping block for clamping the heating wire. A test electrode is provided on the top of the first clamping block. A metal conductive plate is provided on the opposite side of the first clamping block and the second clamping block, and the metal conductive plate is connected to the test electrode. A driving mechanism is provided at the bottom of the base plate to move the first clamping block and the second clamping block in opposite directions. The other side of the base plate has the same structure. The probe of the multimeter is fixedly connected to the test electrode.
[0007] Further, the driving mechanism comprises a first sliding rod, a second sliding rod, a rotating rod, a pushing plate and a cylinder, the bottom plate is fixedly connected with support plates at both sides, and a connecting plate is connected between the two support plates, the first sliding rod and the second sliding rod are fixedly connected with the first clamping block and the second clamping block respectively, and the first sliding rod and the second sliding rod are slidably connected with the bottom plate and the connecting plate, the bottom plate is provided with a fixed block, the rotating rod is rotatably connected with the fixed block, and the rotating rod is obliquely arranged, both ends of the rotating rod are provided with sliding grooves, the first sliding rod and the second sliding rod are slidably connected with the inner walls of the corresponding sliding grooves respectively, and the pushing plate is fixedly connected with the second sliding rod.
[0008] Further, the first clamping block is slidably connected with the second sliding rod, and the second clamping block is slidably connected with the first sliding rod.
[0009] Further, the first sliding rod and the second sliding rod are connected with sliding columns at the sides close to the rotating rod, and the sliding columns are slidably connected with the inner walls of the sliding grooves.
[0010] Further, the sliding columns are in the shape of a cylinder.
[0011] Further, the sliding columns are rotatably connected with the corresponding first sliding rod and second sliding rod respectively, and the sliding columns are rollingly connected with the inner walls of the corresponding sliding grooves.
[0012] The working principle and beneficial effects of the utility model are as follows:
[0013] The utility model discloses a placing plate, first clamping block, second clamping block, test electrode, metal conductive plate and driving mechanism are set up, when the operator needs to measure the resistance of heating wire, first the two probes of multimeter are fixedly connected with the test electrode on the top of first clamping block respectively, then heating wire is placed on the top of placing plate. Then start driving mechanism, and driving mechanism drives first clamping block and second clamping block to move towards the opposite direction, so as to clamp and fix heating wire. Since metal conductive plate is connected with test electrode, when clamping block clamps heating wire, under the action of metal conductive plate, loop is formed between heating wire and test electrode, and finally multimeter displays the resistance value of heating wire on the display screen. Through the clamping and fixing of heating wire, the situation that heating wire is separated from probe is avoided, thereby the accuracy of resistance measurement is improved, and the use of staff is facilitated. Secondly, through the fixing of driving mechanism to heating wire, it can ensure that the pressure that first clamping block and second clamping block exert on each heating wire is consistent, thereby the measurement accuracy is improved,
[0014] In addition, when the number of heating wires is large, since the probe is always fixedly connected with the test electrode, the operator only needs to clamp and fix the heating wire through the driving mechanism, and then the resistance measurement can be performed, without manually contacting each heating wire one by one with the probe, so that the operation process is simplified, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] The utility model will be described further in detail below in combination with the drawings and specific embodiments.
[0016] Figure 1 For the structure of the utility model Figure 1 ;
[0017] Figure 2 For the structure of the utility model Figure 2 (not including multimeter);
[0018] Figure 3 For the structure of the utility model Figure 3 (not including multimeter);
[0019] Figure 4 For the enlarged schematic view of A in the figure;
[0020] In the figure: 1, bottom plate;101, support column;102, placement plate;103, first clamping block;104, second clamping block;105, test electrode;106, metal conductive plate;2, first sliding rod;201, second sliding rod;202, rotating rod;203, push plate;204, air cylinder;205, support plate;206, connecting plate;207, fixed block;208, sliding groove;209, sliding column;5, multimeter. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are all related to the scope of protection of the utility model.
[0022] Reference Figures 1-4The utility model provides a kind of heating wire resistance measuring device, including bottom plate 1, bottom plate 1 is connected with the placement plate 102 for placing heating wire by support column 101, the side of bottom plate 1 close to placement plate 102 is equipped with the first clamping block 103 for clamping heating wire, second clamping block 104 (the first clamping block 103 can be made of insulating material with second clamping block 104), first clamping block 103 top is equipped with test electrode 105, first clamping block 103, second clamping block 104 opposite side is equipped with metal conductive plate 106, and metal conductive plate 106 is connected with test electrode 105 (metal conductive plate 106 and test electrode 105 can be contact relation, it should also be noted that test electrode 105 should have certain wire factor), bottom plate 1 bottom is equipped with the drive mechanism of moving first clamping block 103, second clamping block 104 to opposite direction, the other side of bottom plate 1 is equipped with same structure, and the probe of multimeter 5 is fixedly connected with test electrode 105.
[0023] By being equipped with placement plate 102, first clamping block 103, second clamping block 104, test electrode 105, metal conductive plate 106 and drive mechanism, when operator needs to measure the resistance of heating wire, first the probe of multimeter is fixedly connected with test electrode 105 on the top of first clamping block 103 (connection mode can be wound on the surface of test electrode 105 or be fixed with test electrode 105 using clamp, the embodiment does not make too much limitation to this), then heating wire is placed on the top of placement plate 102. Then start drive mechanism, drive mechanism drives first clamping block 103 and second clamping block 104 to move to opposite direction, so as to clamp and fix heating wire. Since metal conductive plate 106 is connected with test electrode 105, when clamping block clamps heating wire, under the action of metal conductive plate 106, loop is formed between heating wire and test electrode 105, finally multimeter shows the resistance value of heating wire on display screen. By clamping and fixing heating wire, avoid the condition that heating wire is separated from probe, so as to improve the accuracy of resistance measurement, facilitate the use of staff.
[0024] Specifically, the driving mechanism comprises a first sliding rod 2, a second sliding rod 201, a rotating rod 202, a pushing plate 203, a cylinder 204, the bottom plate 1 is fixedly connected with support plates 205 on both sides of the bottom, and the two support plates 205 are connected with a connecting plate 206, and the connecting plate 206 is fixedly connected with the support plates 205, the first sliding rod 2 and the second sliding rod 201 are fixedly connected with the first clamping block 103 and the second clamping block 104 respectively, and the first sliding rod 2 and the second sliding rod 201 are slidably connected with the bottom plate 1 and the connecting plate 206, the bottom plate 1 is provided with a fixed block 207, the rotating rod 202 is rotatably connected with the fixed block 207, and the rotating rod 202 is inclinedly arranged, the fixed block 207 can be arranged between the first sliding rod 2 and the second sliding rod 201, both ends of the rotating rod 202 are provided with sliding grooves 208, the first sliding rod 2 and the second sliding rod 201 are slidably connected with the inner walls of the corresponding sliding grooves 208, one side of the first sliding rod 2 and the second sliding rod 201 is provided with a sliding column 209, the sliding column 209 is slidably connected with the inner wall of the sliding groove 208, the pushing plate is fixedly connected with the second sliding rod 201, and the telescopic rod of the cylinder 204 is fixedly connected with the pushing plate 203. Secondly, the start or stop of the cylinder 204 can be controlled by the switch button, which is a prior art known to those skilled in the art, and therefore will not be described here.
[0025] In use, the staff places the heating wire horizontally on the top of the placement plate 102, so that the two ends of the heating wire are located between the first clamping block 103 and the second clamping block 104 respectively. Then, the operator starts the cylinder 204, the telescopic end of the cylinder 204 drives the pushing plate 203 to move upwards, and the pushing plate 203 drives the second sliding rod 201 to rise. At the same time, the sliding column 209 on the second sliding rod 201 moves in the sliding groove 208 of the rotating rod 202, thereby driving the rotating rod 202 to rotate upwards. Since the rotating rod 202 can only rotate, the other end of the rotating rod 202 drives the sliding column 209 on the first sliding rod 2 to move downwards. In this way, the second sliding rod 201 drives the second clamping block 104 to move upwards, and the first sliding rod 2 drives the second clamping block 104 to move downwards, so that the first clamping block 103 and the second clamping block 104 are relatively moved, thereby clamping and fixing the heating wire.
[0026] By setting the cylinder 204 to drive, the staff only needs to clamp and fix the heating wire by the cylinder 204, which improves the automation degree of the driving mechanism, thereby reducing the labor intensity of the operator when measuring the resistance of multiple heating wires, and further improving the work efficiency. Secondly, through the semi-automatic fixing function, the time of manual adjustment of the operator is reduced, and the efficiency of the measurement process is improved. In addition, by setting the rotating rod 202, the second sliding rod 201 drives the first sliding rod 2 to descend at the same time of rising, so that the two clamping blocks can move synchronously in opposite directions. Such symmetrical clamping can effectively avoid the twisting or deviation of the heating wire during clamping, thereby reducing the damage to the heating wire.
[0027] In order to prevent the first clamping block 103 and the second clamping block 104 from being offset or misaligned during movement, the first clamping block 103 is connected in sliding mode with the second slide rod 201, and the second clamping block 104 is connected in sliding mode with the first slide rod 2. In this way, the push rod plate can guide the first clamping block 103 when driving the second slide rod 201 to move, thereby preventing the first clamping block 103 and the second clamping block 104 from being offset or misaligned during movement, ensuring the stability of the first clamping block 103 and the second clamping block 104 in clamping the heating wire, and further improving the reliability and stability of the driving mechanism during long-term use.
[0028] Further, the first slide rod 2 and the second slide rod 201 are provided with sliding columns 209 on the side close to the rotating rod 202, and the sliding columns 209 are connected in sliding mode with the inner wall of the sliding groove 208. The sliding column 209 is designed in a cylindrical shape, which can reduce the contact area between the sliding column 209 and the sliding groove 208, thereby reducing the phenomenon of jamming of the sliding column 209 when moving in the sliding groove 208, and ensuring the reliability and stability of the driving mechanism during long-term use.
[0029] In addition, each sliding column 209 is connected in rotation mode with the corresponding first slide rod 2 and second slide rod 201, and each sliding column 209 is connected in rolling mode with the inner wall of the corresponding sliding groove 208. Since the rolling friction of the sliding column 209 is smaller than the static friction, the rotation connection mode can further reduce the phenomenon of jamming of the sliding column 209 when moving in the sliding groove 208, thereby enhancing the reliability and stability of the driving mechanism during long-term use.
[0030] Working principle:
[0031] When the operator needs to measure the resistance of the heating wire, firstly, the two probes of the multimeter are fixedly connected with the test electrodes 105 on the top of the first clamping block 103, then the heating wire is horizontally placed on the top of the placing plate 102, and the two ends of the heating wire are located between the first clamping block 103 and the second clamping block 104. Then, the operator starts the air cylinder 204, the telescopic end of the air cylinder 204 drives the pushing plate 203 to move upward, and the pushing plate 203 drives the second sliding rod 201 to move upward. At the same time, the sliding column 209 on the second sliding rod 201 moves in the sliding groove 208 of the rotating rod 202, thereby driving the rotating rod 202 to rotate upward. Since the rotating rod 202 can only rotate, the other end of the rotating rod 202 drives the sliding column 209 on the first sliding rod 2 to move downward. In this way, the second sliding rod 201 drives the second clamping block 104 to move upward, and the first sliding rod 2 drives the second clamping block 104 to move downward, so that the first clamping block 103 and the second clamping block 104 are relatively moved, thereby clamping and fixing the heating wire. Since the metal conductive plate 106 is connected with the test electrode 105, when the clamping block clamps the heating wire, a loop is formed between the heating wire and the test electrode 105 under the action of the metal conductive plate 106, and finally the multimeter displays the resistance value of the heating wire on the display screen.
[0032] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A heating wire resistance measuring device comprising a multimeter (5), characterized in that, Also include the bottom plate (1), the bottom plate (1) is connected by support column (101) for placing the placement plate (102) for placing heating wire, the bottom plate (1) is close to the side of placement plate (102) is equipped with first clamping block (103) for clamping heating wire, second clamping block (104), the top of the first clamping block (103) is equipped with test electrode (105), the opposite side of the first clamping block (103), second clamping block (104) is equipped with metal conductive plate (106), and the metal conductive plate (106) is connected with test electrode (105), the bottom of the bottom plate (1) is equipped with drive mechanism for moving the first clamping block (103), second clamping block (104) to the opposite direction, the other side of the bottom plate (1) is equipped with the same structure, the probe of the multimeter (5) is fixedly connected with test electrode (105).
2. A heating element resistance measuring device according to claim 1, characterised in that: The drive mechanism includes first slide rod (2), second slide rod (201), rotating rod (202), push plate (203), air cylinder (204), the bottom plate (1) bottom both sides are fixedly connected with support plate (205), and the connecting plate (206) is connected between the two support plates (205), the first slide rod (2), second slide rod (201) are fixedly connected with the first clamping block (103), second clamping block (104), and the first slide rod (2), second slide rod (201) are both slidingly connected with the bottom plate (1), connecting plate (206), the bottom of the bottom plate (1) is equipped with fixed block (207), the rotating rod (202) is rotatably connected with the fixed block (207), and the rotating rod (202) is inclinedly arranged, both ends of the rotating rod (202) are equipped with sliding groove (208), the first slide rod (2), second slide rod (201) are respectively slidingly connected with the inner wall of the corresponding sliding groove (208), the push plate is fixedly connected with the second slide rod (201), and the telescopic rod of the air cylinder (204) is fixedly connected with the push plate (203).
3. A heating element resistance measuring device according to claim 2, characterised in that: The first clamping block (103) is slidingly connected with the second slide rod (201), and the second clamping block (104) is slidingly connected with the first slide rod (2).
4. A heating element resistance measuring device according to claim 2, characterised in that: The first slide rod (2), second slide rod (201) are connected with sliding column (209) on the side close to the rotating rod (202), and the sliding column (209) is slidingly connected with the inner wall of the sliding groove (208).
5. A heating element resistance measuring device according to claim 4, characterised in that: The sliding column (209) is in the shape of a cylinder.
6. A heating element resistance measuring device according to claim 5, characterised in that: Each sliding column (209) is rotatably connected with the corresponding first slide rod (2) and second slide rod (201), and each sliding column (209) is rollingly connected with the inner wall of the corresponding sliding groove (208).