A fuse testing device for detecting fuse tube

Abstract

The present invention provides a fuse testing device for detecting a fuse tube, belonging to the technical field of testing equipment, comprising a test pen, a carrying disc, a support frame, a threaded sleeve, and a driving member, wherein a plurality of mounting grooves are provided on the carrying disc, the carrying disc is rotatably connected with the threaded sleeve, and are coaxially arranged, a fixed gear ring is fixedly installed on the threaded sleeve, a torsion spring is installed on one side of the fixed gear ring, an inner gear ring is installed on the inner side of the carrying disc, the driving member is installed on one side of the support frame, and the output end of the driving member is installed with the half gear, and through the arrangement of the plurality of mounting grooves on the carrying disc, a plurality of fuse tubes can be tested simultaneously, and through the arrangement of the half gear, the fixed gear ring, the inner gear ring, and the elastic telescopic member, the test head and the fuse tube can be closely attached to each other while switching the working position, so that the attaching effect is better, the result deviation caused by manual attaching is avoided, and the operation is more automated.

Description

Technical Field

[0001] The invention belongs to the technical field of testing equipment, in particular to a fuse testing device for detecting a fuse tube. Background Art

[0002] Fuse tube is a component used for circuit protection, mainly used for overcurrent protection. The main materials of fuse tube are glass, quartz and ceramic, etc. There may be many reasons for the short circuit of the equipment circuit, which may be the damage of other electronic components or the fuse tube may be blown, so it is necessary to identify it. It is relatively easy to identify the glass fuse tube when it is blown, and it can be identified by the naked eye. However, the blown quartz fuse tube and ceramic fuse tube cannot be identified by the naked eye. In the prior art, a multimeter is used for identification. By placing the two test tables of the multimeter close to the two ends of the fuse tube, if the fuse tube is not blown, a path is formed, and if it has been blown, it is an open circuit. The identification method can use the buzzer of the multimeter. The beep of the multimeter indicates that it is a path, that is, it is not blown, otherwise it is blown.

[0003] However, the existing equipment is not equipped with only one fuse tube. There may be multiple fuse tubes inside one equipment, and there may be several times the number of fuse tubes on one production line. To test whether the fuses in the multiple fuse tubes are blown or not, the fuse tubes are manually taken out and two test pens are manually pressed against the two ends of the fuse tube for testing. The operation is cumbersome, and it is difficult to ensure that the test pens are pressed against the two ends of the fuse tube at the same time during manual operation. If they are not pressed against each other, the result will be a passage, which will cause waste of the fuse tube. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a fuse testing device for detecting a fuse tube.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A fuse testing device for detecting a fuse tube, comprising a test pen, a carrying plate, a support frame, a threaded sleeve, and a driving member, wherein a plurality of mounting grooves are provided on the carrying plate, the threaded sleeve is rotatably mounted on the inner side of the support frame, the carrying plate is rotatably connected with the threaded sleeve, and are coaxially arranged, a fixed toothed ring is fixedly mounted on the threaded sleeve, a torsion spring is mounted on one side of the fixed toothed ring, an inner toothed ring is mounted on the inner side of the carrying plate, the driving member is mounted on one side of the support frame, the half gear is mounted on the output end of the driving member, the half gear is meshedly connected with the inner toothed ring and the fixed toothed ring, threaded rods are movably mounted on both ends of the threaded sleeve, a movable plate is fixedly mounted on one end of the threaded rod away from each other, an elastic telescopic component is mounted on the side of the movable plate close to the carrying plate, a clamping plate is mounted on the output end of the elastic telescopic component, the test pen is detachably mounted on the clamping plate, and the elastic telescopic component is used to drive the test pen to be close to both ends of the fuse tube.

[0006] As a further improvement scheme: a telescopic member is fixedly installed on one side of the support frame, and the driving member is installed on the output end of the telescopic member.

[0007] As a further improvement scheme: the elastic telescopic component includes an elastic member and a telescopic rod, one end of the telescopic rod is fixedly installed on one side of the movable plate, and the other end of the telescopic rod is fixedly connected to the clamping plate, one end of the elastic member is installed on one side of the movable plate, and the other end of the elastic member is fixedly connected to the clamping plate.

[0008] As a further improvement scheme: a through hole is opened on the inner side of the installation groove, a push rod is slidably installed inside the through hole, and the push rod is connected to the half gear.

[0009] As a further improvement scheme: a fixed tooth is fixedly installed on one side of the push rod, and the fixed tooth is meshingly connected with the half gear.

[0010] As a further improvement scheme: the push rod is slidably connected to the support frame, and a counterweight block is installed on the push rod.

[0011] As a further improvement scheme: an elastic pressing sheet is installed inside the installation groove.

[0012] As a further improvement scheme: the elastic pressing piece includes a bending portion, a first arc-shaped portion, and a second arc-shaped portion, the bending portion is connected to the first arc-shaped portion, the first arc-shaped portion is connected to the second arc-shaped portion, the inner diameter of the first arc-shaped portion is larger than that of the second arc-shaped portion, and the second arc-shaped portion is installed on the inner side of the installation groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a plurality of mounting grooves on the carrier plate, it is possible to test a plurality of fuse tubes at the same time; by setting a half gear, a fixed gear ring, an internal gear ring, and an elastic telescopic member, it is possible to achieve close contact between the test head and the fuse tube while switching the working position, so that the close contact effect is better, the result deviation caused by manual close contact is avoided, and the operation is more automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the overall structure of a fuse testing device for detecting a fuse tube;

[0015] Figure 2 A three-dimensional schematic diagram of a fuse testing device for detecting a fuse tube from another perspective;

[0016] Figure 3 It is a partial structural schematic diagram of a fuse testing device for detecting a fuse tube;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of a fuse testing device for detecting a fuse tube;

[0018] Figure 5 A schematic diagram of an elastic pressing piece structure of a fuse testing device for detecting a fuse tube;

[0019] In the figure: 1. support frame; 2. carrying plate; 3. movable plate; 4. threaded sleeve; 5. test pen; 6. driving member; 7. rotating shaft; 8. half gear; 9. inner gear ring; 10. fixed gear ring; 11. threaded rod; 12. clamping plate; 13. mounting groove; 14. telescopic member; 15. elastic telescopic assembly; 151. elastic member; 152. telescopic rod; 16. push rod; 17. fixed tooth; 18. sliding frame; 19. slide groove; 20. torsion spring; 21. through hole; 22. elastic pressing sheet; 221. bending portion; 222. first arc portion; 223. second arc portion. DETAILED DESCRIPTION

[0020] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0021] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0022] See also Figure 1-Figure 5In one embodiment, a fuse testing device for detecting a fuse tube includes a test pen 5, a carrier plate 2, a support frame 1, a threaded sleeve 4, and a driving member 6. The carrier plate 2 is provided with a plurality of mounting grooves 13, and the plurality of mounting grooves 13 are equidistantly distributed along the circumference of the carrier plate 2. The support frame 1 is U-shaped, and the threaded sleeve 4 is rotatably mounted on the inner side of the support frame 1. The carrier plate 2 is rotatably connected to the threaded sleeve 4 and is coaxially arranged. A fixed toothed ring 10 is fixedly mounted on the threaded sleeve 4, and a torsion spring 20 is mounted on one side of the fixed toothed ring 10. An inner toothed ring 9 is mounted on the inner side of the carrier plate 2, and one side of the support frame 1 is mounted There is a driving member 6, and the half gear 8 is installed at the output end of the driving member 6. The half gear 8 is meshed and connected with the internal gear ring 9 and the fixed gear ring 10. The two ends of the threaded sleeve 4 are threadedly connected with threaded rods 11. The thread directions of the two threaded rods 11 are opposite. A movable plate 3 is fixedly installed at one end of the threaded rods 11 away from each other. An elastic telescopic component 15 is installed on the side of the movable plate 3 close to the supporting plate 2. A clamping plate 12 is installed at the output end of the elastic telescopic component 15. The test pen 5 is detachably installed on the clamping plate 12. The elastic telescopic component 15 is used to drive the test pen 5 to be close to the two ends of the fuse tube.

[0023] In this embodiment, by installing fuse tubes one by one in the plurality of mounting grooves 13, a clamping device can be installed in the mounting groove 13 to achieve fixed clamping of the fuse tube. After installation, the driving member 6 is started, and the driving member 6 drives the half gear 8 to rotate. The half gear 8 first meshes with the inner gear ring 9 on the carrier plate 2, and at this time drives the carrier plate 2 to rotate at a small angle, so that one of the mounting grooves 13 is rotated to the working position. At the same time, the half gear 8 switches to mesh with the fixed gear ring 10 on the threaded sleeve 4, and at this time drives the threaded sleeve 4 to rotate. When the threaded sleeve 4 rotates, it drives the threaded rods 11 at both ends to move linearly, that is, drives the test pen 5 installed on the clamping plate 12 to move toward the fuse tube. Under the action of the elastic telescopic component 15, the The test head at the bottom of the test pen 5 is pressed against the two ends of the fuse tube to achieve conduction. As the half gear 8 continues to move, when the half gear 8 is disengaged from the fixed gear ring 10 and the inner gear ring 9, the test head completes the test of the fuse tube. At this time, the fixed gear ring 10 rotates in the opposite direction under the action of the torsion spring 20, that is, drives the threaded rod 11 and the test head to move in the opposite direction, and the test head is disengaged from the fuse tube. At this time, the fuse tube can be cut according to the feedback of the multimeter. In this embodiment, a plurality of mounting grooves 13 can be used to automatically test a plurality of fuse tubes. Compared with manually pressing the test head against the two ends of the fuse tube, the operation is simpler and more accurate. It is difficult to manually ensure that the two test heads are pressed against the two ends of the fuse tube at the same time.

[0024] See also Figure 2 In one embodiment, a telescopic member 14 is fixedly mounted on one side of the support frame 1 , and the driving member 6 is mounted on the output end of the telescopic member 14 .

[0025] In the present embodiment, in order to facilitate the loading of the fuse tube, a telescopic member 14 is installed to achieve position adjustment of the driving member 6. In the present embodiment, when loading the fuse tube, the telescopic member 14 drives the half gear 8 to move toward the outside of the carrier plate 2, so that the half gear 8 is disengaged from the fixed gear ring 10 and the inner gear ring 9. At this time, the fuse tube is manually placed in the installation groove 13. After placing one, the carrier plate 2 is manually rotated so that another unloaded installation groove 13 is presented to the operator. At this time, since it has been disengaged, the carrier plate 2 can rotate freely without generating a meshing relationship. After loading is completed, the telescopic member 14 drives the half gear 8 to move toward the inside of the carrier plate 2, so that the half gear 8 is restored to the meshing relationship with the fixed gear ring 10 and the inner gear ring 9, thereby completing the loading of multiple fuse tubes and making the operation more convenient.

[0026] See also Figure 1-Figure 2 In one embodiment, the elastic telescopic component 15 includes an elastic member 151 and a telescopic rod 152, one end of the telescopic rod 152 is fixedly installed on one side of the movable plate 3, and the other end of the telescopic rod 152 is fixedly connected to the clamping plate 12, one end of the elastic member 151 is installed on one side of the movable plate 3, and the other end of the elastic member 151 is fixedly connected to the clamping plate 12.

[0027] In this embodiment, when the threaded rods 11 at both ends move, they first drive the elastic telescopic assembly 15 to move as a whole. When the test head contacts the fuse tube, the threaded rod 11 still keeps moving. At this time, the telescopic rod 152 moves, and the elastic member 151 is deformed. The restoring force of the elastic member 151 is used to squeeze and fit the test head, and the effect of fitting is better.

[0028] In this embodiment, the elastic telescopic component 15 can also be a silicone pad installed on the movable plate 3 and the clamping plate 12; the elastic member 151 can be a spring, and can also be a rubber spring, a metal spring, etc.

[0029] See also Figure 1-Figure 5 In one embodiment, a through hole 21 is opened inside the mounting groove 13 , and a push rod 16 is slidably installed inside the through hole 21 , and the push rod 16 is connected to the half gear 8 .

[0030] In this embodiment, the rotation of the half gear 8 drives the ejector rod 1 to slide and connect inside the through hole 21, so that the ejector rod 16 can eject the fuse tube placed inside the mounting groove 13, which is convenient for manual classification and unloading. The connection structure between the ejector rod 16 and the half gear 8 can adopt a crank slider structure, and the movement of the half gear 8 drives the ejector rod 16 to move linearly.

[0031] See also Figure 1 , Figure 3 , Figure 4 In one embodiment, a fixed tooth 17 is fixedly installed on one side of the push rod 16, and the fixed tooth 17 is meshedly connected with the half gear 8.

[0032] In this embodiment, the half gear 8 has three states: the half gear 8 is engaged with the inner gear ring 9, and the half gear 8 is disengaged from the fixed gear ring 10 and the fixed teeth 17. At this time, the half gear 8 rotates to drive the carrier plate 2 to switch the working position, and the threaded sleeve 4 and the push rod 16 remain stationary; the half gear 8 is engaged with the fixed gear ring 10, and the half gear 8 is disengaged from the inner gear ring 9 and the fixed teeth 17. At this time, the half gear 8 rotates to drive the threaded sleeve 4 to rotate and drive the threaded rod 11 to move, and the carrier plate 2 and the push rod 16 remain stationary; the half gear 8 is engaged with the fixed teeth 17, and the half gear 8 is disengaged from the inner gear ring 9 and the fixed gear ring 10; at this time, the half gear 8 rotates to drive the push rod 16 to move, and the threaded sleeve 4 rotates in the opposite direction under the action of the torsion spring 20 to release the tightness, and the carrier plate 2 remains stationary.

[0033] By providing the inner gear ring 9, the fixed gear ring 10 and the fixed teeth 17, the switching of working positions, the pressing and the ejecting operations can be concentrated on one driving source, and a pipeline operation is formed, which is more automated. In this process, only the fuse tube needs to be loaded manually and the material is unloaded according to the feedback results of the multimeter. Unloading frames can be installed on both sides of the carrier plate 2 to push the blown fuse tube to the left and the unblown fuse tube to the right. The above-mentioned unloading operation can also be integrated with a controller, and a push rod is provided. The controller recognizes the signal to control the push rod to push the unloading.

[0034] See also Figure 1-Figure 3 In one embodiment, a sliding frame 18 is installed on one side of the top rod 16, a sliding groove 19 is opened on the inner side of the support frame 1, the sliding frame 18 is slidably connected inside the sliding groove 19, and a counterweight block is installed on the top rod 16.

[0035] In this embodiment, the sliding frame 18 is installed to make the push rod 16 more stable when moving in a straight line. By installing a counterweight on the push rod 16, the push rod 16 can be automatically adjusted to the initial position after extending out of the through hole 21 under the transmission action of the half gear 8. In this embodiment, it can also be achieved by installing a spring inside the slide groove 19, one end of the spring is connected to the sliding frame 18, and the other end of the spring is connected to the inside of the slide groove 19.

[0036] See also Figure 1-Figure 3 In one embodiment, an elastic pressing piece 22 is installed inside the installation groove 13.

[0037] In this embodiment, the elastic pressing pieces 22 installed on both sides of the installation groove 13 can clamp the circumferential surface of the fuse tube, so that the position of the fuse tube can be fixed.

[0038] See also Figure 5 In one embodiment, the elastic pressing piece 22 includes a bending portion 221, a first arc-shaped portion 222, and a second arc-shaped portion 223. The bending portion 221 is connected to one end of the first arc-shaped portion 222, and the other end of the first arc-shaped portion 222 is connected to the second arc-shaped portion 223. The inner diameter of the first arc-shaped portion 222 is larger than that of the second arc-shaped portion 223. The second arc-shaped portion 223 is installed on the inner side of the mounting groove 13, and the bending portion 221 is installed on the outer side of the mounting groove 13.

[0039] In this embodiment, the elastic pressing piece 22 includes a bending portion 221, a first arc portion 222, and a second arc portion 223. The bending portion 221 is arranged outside the mounting groove 13, and the second arc portion 223 is installed inside the mounting groove 13. The bending portion 221 can facilitate the entry of the fuse tube, and the bending portion 221 can fit the circumferential surface of the fuse tube to avoid damage to the surface of the fuse tube. The inner diameter of the first arc portion 222 is larger than that of the second arc portion 223, that is, the fuse tube is in the second arc portion 2 The clamping force received by the fuse tube inside the first arc-shaped portion 222 is greater than that received by the fuse tube inside the first arc-shaped portion 222. The clamping force received by the fuse tube when the fuse tube is inside the first arc-shaped portion 222 is almost zero. The first arc-shaped portion 222 only provides support force for the fuse tube. When testing, the clamping of the fuse tube is provided by the second arc-shaped portion 222. Under the action of the push rod 16, the fuse tube can be pushed to move, that is, from the second arc-shaped portion 223 to the first arc-shaped portion 222. At this time, the fuse tube can be unloaded by manually pushing the fuse tube lightly, thereby facilitating the unloading of the fuse tube.

[0040] Working process of the present invention:

[0041] By installing fuse tubes one by one in the plurality of installation grooves 13, that is, pressing the fuse tube into the second arc-shaped portion 223, after installation, starting the driving member 6, the driving member 6 drives the half gear 8 to rotate, and the half gear 8 first engages with the inner gear ring 9 on the carrier plate 2, and at this time drives the carrier plate 2 to rotate at a small angle, even if one of the installation grooves 13 is rotated to the working position, at the same time, the half gear 8 switches to engage with the fixed gear ring 10 on the threaded sleeve 4, and at this time drives the threaded sleeve 4 to rotate, and the threaded rods 11 at both ends move linearly while the threaded sleeve 4 rotates, that is, drives the test pen 5 installed on the clamping plate 12 to move toward the fuse tube, and under the action of the elastic member 151, the test head at the bottom of the test pen 5 is pressed against the two ends of the fuse tube to achieve conduction, and as the half gear 8 continues to move, When the half gear 8 is disengaged from the fixed gear ring 10 and the inner gear ring 9, the test head completes the test of the fuse tube, and the fixed gear ring 10 rotates in the opposite direction under the action of the torsion spring 20, that is, drives the threaded rod 11 and the test head to move in the opposite direction, and the test head is disengaged from the fuse tube. At the same time, the half gear 8 is engaged with the fixed teeth 17 on the ejector rod 16. At this time, the ejector rod 16 extends out of the through hole 21 to eject the fuse tube into the first arc-shaped portion 222. At this time, the fuse tube can be cut according to the feedback of the multimeter. In this embodiment, by providing a plurality of mounting grooves 13, automatic testing of a plurality of fuse tubes can be achieved. Compared with manually pressing the test head to both ends of the fuse tube, the operation is simpler and more accurate. It is difficult to manually ensure that the two test heads are pressed to both ends of the fuse tube at the same time.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fuse testing device for detecting a fuse tube, characterized in that: It comprises a test pen, a carrying plate, a supporting frame, a threaded sleeve and a driving member, wherein the carrying plate is provided with a plurality of mounting grooves, the threaded sleeve is rotatably mounted on the inner side of the supporting frame, the carrying plate is rotatably connected with the threaded sleeve and are coaxially arranged, a fixed gear ring is fixedly mounted on the threaded sleeve, a torsion spring is mounted on one side of the fixed gear ring, an inner gear ring is mounted on the inner side of the carrying plate, the driving member is mounted on one side of the supporting frame, a half gear is mounted on the output end of the driving member, the half gear is meshedly connected with the inner gear ring and the fixed gear ring, threaded rods are movably mounted on both ends of the threaded sleeve, a movable plate is fixedly mounted on one end of the threaded rods away from each other, an elastic telescopic component is mounted on a side of the movable plate close to the carrying plate, a clamping plate is mounted on the output end of the elastic telescopic component, the test pen is detachably mounted on the clamping plate, and the elastic telescopic component is used to drive the test pen to close to both ends of the fuse tube; The half gear is driven to rotate by the driving member, and the half gear first engages with the internal gear ring on the carrier plate, thereby driving the carrier plate to rotate at a small angle, so that one of the mounting grooves is rotated to the working position. At the same time, the half gear switches to engage with the fixed gear ring on the threaded sleeve, and the test pen installed on the clamping plate is driven to move toward the fuse tube through the rotation of the threaded sleeve. Under the action of the elastic telescopic component, the test head at the bottom of the test pen 5 is pressed tightly against the two ends of the fuse tube.

2. A fuse testing device for detecting a fuse tube according to claim 1, characterized in that: A telescopic member is fixedly mounted on one side of the support frame, and the driving member is mounted on the output end of the telescopic member.

3. A fuse testing device for detecting a fuse tube according to claim 1, characterized in that: The elastic telescopic assembly includes an elastic member and a telescopic rod, one end of the telescopic rod is fixedly mounted on one side of the movable plate, and the other end of the telescopic rod is fixedly connected to the clamping plate, one end of the elastic member is mounted on one side of the movable plate, and the other end of the elastic member is fixedly connected to the clamping plate.

4. A fuse testing device for detecting a fuse tube according to claim 3, characterized in that: A through hole is provided inside the mounting groove, a push rod is slidably mounted inside the through hole, and the push rod is connected to the half gear.

5. A fuse testing device for detecting a fuse tube according to claim 4, characterized in that: A fixed tooth is fixedly mounted on one side of the push rod, and the fixed tooth is meshedly connected with the half gear.

6. A fuse testing device for detecting a fuse tube according to claim 5, characterized in that: The push rod is slidably connected to the support frame, and a counterweight is installed on the push rod.

7. A fuse testing device for detecting a fuse tube according to any one of claims 4 to 6, characterized in that: An elastic pressing sheet is installed inside the installation groove.

8. A fuse testing device for detecting a fuse tube according to claim 7, characterized in that: The elastic pressing piece includes a bending portion, a first arc-shaped portion, and a second arc-shaped portion. The bending portion is connected to the first arc-shaped portion, the first arc-shaped portion is connected to the second arc-shaped portion, the inner diameter of the first arc-shaped portion is larger than that of the second arc-shaped portion, and the second arc-shaped portion is installed on the inner side of the installation groove.

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