A leakage detector for electric power meter

Abstract

The present invention belongs to the field of leakage detectors, and specifically is a leakage detector for an electric power meter, comprising a detector head, wherein the detector head is fixedly connected to a detector body, a rubber grip is sleeved on the bottom end of the detector body, a telescopic sleeve is sleeved on the outer side of the detector head, a telescopic mechanism is arranged at the bottom end of the telescopic sleeve, the telescopic mechanism is used to telescope the telescopic sleeve, the inner wall of the telescopic sleeve does not contact the detector head, the surface of the detector head contacts the top of a scraper block, a scraping mechanism is arranged at the bottom end of the scraper block, the scraping mechanism is used to lift the scraper block so as to scrape dust and debris on the surface of the detector head, and the outer side of the telescopic sleeve is in contact with the inner wall of a rotating sleeve; through the structural design of the telescopic mechanism, the function of facilitating the protection of the detector head is realized, so as to ensure the cleanliness of the detector head in daily placement.

Description

Technical Field

[0001] The invention relates to the field of leakage detectors, in particular to a leakage detector for a power meter. Background Art

[0002] During long-term use, electrical instruments may leak electricity due to aging of internal circuits, structural damage, etc., causing the instrument casing to be energized. At this time, a leakage detector is needed to check the leakage location for subsequent processing.

[0003] According to the patent document CN202311418409.0, a leakage fault detector and a detection method thereof are proposed, including a first adjustment component and a second adjustment component for adjusting the position of a part of the detection clamp and a fixed component arranged on the top of the second adjustment component for installing the detection clamp. The invention adjusts the position of the two rotating blocks by the first adjustment component, thereby adjusting the rotational connection position of the two half magnetic rings of the detection clamp and the main body, so as to facilitate the passage of larger cables through the two half magnetic rings, and facilitates the adjustment of the position of a single rotating block and a half magnetic ring by the second adjustment component, so as to ensure that the positions of the two half magnetic rings are symmetrical and consistent, thereby ensuring that the two half magnetic rings are spliced ​​into a complete magnetic ring, and positioning the rotating block on which the two half magnetic rings are installed, so that the two half magnetic rings can be re-closed according to the open trajectory and spliced ​​into a complete magnetic ring, thereby ensuring the integrity of the two half magnetic rings after closing, which is convenient for actual detection and use.

[0004] However, in the leakage fault detector of the above technology, the head of the leakage detector may be contaminated by debris or the surface may be wet due to moisture during use and daily placement, and the head is easily corroded by moisture and pollution, resulting in reduced sensitivity. It is impossible to accurately perform detection during use, and for safety reasons, it is necessary to ensure that the head of the leakage detector is dry and tidy. Therefore, before each use, the head of the leakage detector needs to be cleaned, which is cumbersome and inconvenient. Therefore, in view of the above problems, a leakage detector for an electric meter is proposed. Summary of the invention

[0005] In order to solve the problem that a leakage fault detector in the above technology may be contaminated by debris attached to the head of the leakage detector during use and daily placement, or the surface may become wet due to moisture, and the head is easily corroded by moisture and pollution, resulting in reduced sensitivity. It is impossible to accurately perform detection during use, and for safety reasons, it is necessary to ensure that the head of the leakage detector is dry and tidy. Therefore, before each use, the head of the leakage detector needs to be cleaned, which is a rather cumbersome and inconvenient problem. The present invention proposes a leakage detector for an electric meter.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the leakage detector of an electric power meter described in the present invention includes a detector head, the detector head is fixedly connected to the detector body, the bottom end of the detector body is sleeved with a rubber grip, the outer side of the detector head is sleeved with a telescopic sleeve, the bottom end of the telescopic sleeve is provided with a telescopic mechanism, the telescopic mechanism is used to telescope the telescopic sleeve, the inner wall of the telescopic sleeve does not contact the detector head, the surface of the detector head is in contact with the top of a scraper block, the bottom end of the scraper block is provided with a scraping mechanism, the scraping mechanism is used to lift the scraper block to facilitate scraping dust and debris on the surface of the detector head, the outer side of the telescopic sleeve is in contact with the inner wall of a rotating sleeve, and an installation component is provided on the rotating sleeve, and the installation component is used to install and disassemble the telescopic sleeve.

[0007] Preferably, the telescopic mechanism includes four groups of sliding blocks, which are fixedly connected to the outer side of the telescopic sleeve near the bottom end, the sliding blocks are distributed in a circle on the telescopic sleeve, the inner wall of the telescopic sleeve contacts with a rubber block, the rubber block is fixedly connected to the outer side of the detector head, the sliding block is slidably connected to the inner wall of the sliding groove, the sliding groove is provided on the rotating sleeve, the bottom end of the rotating sleeve is fixedly connected with a connecting base, the rotating sleeve and the connecting base are both sleeved on the outer side of the detector body, the inner wall of the connecting base does not contact the fixed block, a rotating groove is provided in the middle of the inner wall of the connecting base, a fixing ring is slidably connected to the inside of the rotating groove, the fixing ring and the rotating groove are both T-shaped, the fixing ring is fixedly connected to the outer side of the fixed block, and the fixed block is sleeved on a position near the middle of the detector body.

[0008] Preferably, the scraping mechanism includes a fixed sleeve, which is fixedly connected to the bottom end of the inner wall of the rotating sleeve, the inner wall of the fixed sleeve does not contact the detector body, and a guide groove is opened on the inner wall of the fixed sleeve, the guide groove is V-shaped, the inner wall of the guide groove is in contact with a guide slider, and the guide slider is slidably connected to the inside of the guide groove, and two groups of guide sliders are provided, and the side of the guide slider close to the detector body is fixedly connected to the bottom end of the connecting rod, and both sides of the connecting rod do not contact the inner wall of the fixed sleeve and the outer side of the detector body, and the top of the connecting rod is fixedly connected with a scraper block, and the cross-section of the scraper block is trapezoidal in design.

[0009] Preferably, the mounting assembly comprises a mounting groove, the mounting groove is arranged at the top end of the rotating sleeve, the mounting groove is communicated with the sliding groove, and two groups of rubber stoppers are fixedly connected to the inner wall of the mounting groove.

[0010] Preferably, a support block is fixedly connected to the top of the fixed sleeve, the inner wall of the support block contacts the connecting rod, the support block is located at the bottom end of the sliding groove, and the two sides of the support block do not contact the inner wall of the rotating sleeve and the outer side of the detector body.

[0011] Preferably, the bottom end of the connecting base is fixedly connected to an extension base, the inner wall of the extension base does not contact the outer side of the detector body, the bottom end of the extension base is fixedly connected to two groups of limit blocks, one group of the limit blocks abuts against the fixed blocks, the fixed blocks are fixedly connected to the detector body, the limit blocks and the fixed blocks are both designed as long rectangles, and the bottom ends of the limit blocks and the fixed blocks do not contact the top of the rubber grip.

[0012] Preferably, a plurality of groups of rectangular grooves are provided on the inner wall of the extension base, a spring is fixedly connected to the inner wall of the rectangular groove, one side of the spring is fixedly connected to a snap-in ball, the snap-in ball is slidably connected inside the rectangular groove, the side of the snap-in ball away from the spring is snapped on the snap-in groove, the snap-in groove is provided on the outside of the detector body, and the snap-in grooves are distributed in a circle on the detector body.

[0013] Preferably, a plurality of groups of grooves are provided on the inner wall of the connection base, and a rotating column is rotatably connected to the inner wall of the groove, and the rotating column is in contact with the outer side of the detector body.

[0014] Preferably, a metal ring is fixedly connected to the top end of the telescopic sleeve, a rotating cover plate is rotatably connected to the metal ring, an arc-shaped groove is formed on the rotating cover plate, and a magnet is fixedly connected to the inside of the arc-shaped groove.

[0015] Preferably, a circular groove is provided in the middle of the rotating cover plate, a rubber gasket is fixedly connected to the inside of the circular groove, and the bottom end of the rubber gasket is in contact with the top end of the detector head.

[0016] The present invention is beneficial in that:

[0017] 1. The present invention realizes the function of protecting the head of the detector through the structural design of the telescopic mechanism, so as to ensure the cleanliness of the head of the detector in daily placement and avoid erosion, and solves the problem of a leakage fault detector in the prior art that the head of the leakage detector may be contaminated by debris or the surface may be damp due to moisture during use and daily placement, and the head is easily corroded by moisture and pollution, resulting in reduced sensitivity, and accurate detection cannot be performed during use. In addition, for safety reasons, it is necessary to ensure that the head of the leakage detector is dry and clean. Therefore, before each use, the head of the leakage detector needs to be cleaned, which is relatively cumbersome and inconvenient.

[0018] 2. The present invention realizes the function of scraping away dust and debris attached to the surface of the detector head through the structural design of the scraping mechanism, so as to keep the detector head clean and tidy, avoid the need to manually clean the dust and debris on the surface of the detector head, facilitate the use of the detector, and ensure the accuracy of the detection results of the detector during use;

[0019] 3. The present invention realizes the function of facilitating the installation and fixation between the telescopic sleeve and the rotating sleeve and removing the telescopic sleeve from the rotating sleeve through the structural design of the installation assembly, so as to facilitate the assembly of the telescopic sleeve, thereby facilitating the cleaning of the scraper block inside the rotating sleeve and ensuring the cleanliness of the scraper block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the detector head and the detector body of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the connection structure of the top end of the telescopic sleeve of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the rotating sleeve of the present invention;

[0026] Figure 6 It is a schematic cross-sectional structure diagram of the rotating sleeve of the present invention;

[0027] Figure 7 A schematic diagram of the connection structure of the connection base of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure inside the connection base of the present invention.

[0029] In the figure: 1. detector head; 20. detector body; 21. rubber grip; 22. telescopic sleeve; 23. sliding block; 24. sliding groove; 25. rotating sleeve; 26. connecting base; 27. fixed sleeve; 28. guide groove; 29. ​​guide slide block; 30. support block; 31. connecting rod; 32. scraper block; 33. fixed block; 34. fixed ring; 35. rotating column; 36. groove; 37. rotating groove; 38. rectangular groove; 39. spring; 40. extension base; 41. card receiving ball; 42. limit block; 43. fixed block; 45. rubber block; 46. mounting groove; 47. metal ring; 48. rotating cover; 49. circular groove; 50. arc groove; 51. magnet; 52. rubber gasket; 53. rubber block; 54. card slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] See also Figure 1 - Figure 8 As shown, a leakage detector for an electric power meter comprises a detector head 1, wherein the detector head 1 is fixedly connected to a detector body 20, a rubber grip 21 is sleeved on the bottom end of the detector body 20, a telescopic sleeve 22 is sleeved on the outside of the detector head 1, a telescopic mechanism is arranged at the bottom end of the telescopic sleeve 22, the telescopic mechanism is used to telescope the telescopic sleeve 22, the inner wall of the telescopic sleeve 22 does not contact the detector head 1, the surface of the detector head 1 contacts the top end of a scraper block 32, a scraping mechanism is arranged at the bottom end of the scraper block 32, the scraping mechanism is used to lift the scraper block 32 so as to scrape dust and debris on the surface of the detector head 1, the outer side of the telescopic sleeve 22 is in contact with the inner wall of a rotating sleeve 25, a mounting assembly is arranged on the rotating sleeve 25, and the mounting assembly is used to install and disassemble the telescopic sleeve 22;

[0033] Further, the telescopic mechanism includes four groups of sliding blocks 23, the four groups of sliding blocks 23 are fixedly connected to the outer side of the telescopic sleeve 22 near the bottom end, the sliding blocks 23 are distributed in a circle on the telescopic sleeve 22, the inner wall of the telescopic sleeve 22 is in contact with the rubber block 53, the rubber block 53 is fixedly connected to the outer side of the detector head 1, the sliding blocks 23 are slidably connected to the inner wall of the sliding groove 24, the sliding groove 24 is provided on the rotating sleeve 25, and the bottom end of the rotating sleeve 25 is fixedly connected There is a connecting base 26, the rotating sleeve 25 and the connecting base 26 are both sleeved on the outside of the detector body 20, the inner wall of the connecting base 26 does not contact the fixed block 33, a rotating groove 37 is opened in the middle of the inner wall of the connecting base 26, a fixing ring 34 is slidably connected inside the rotating groove 37, the fixing ring 34 and the rotating groove 37 are both T-shaped, the fixing ring 34 is fixedly connected to the outside of the fixed block 33, and the fixed block 33 is sleeved near the middle of the detector body 20;

[0034] Further, the scraping mechanism includes a fixed sleeve 27, which is fixedly connected to the bottom end of the inner wall of the rotating sleeve 25, the inner wall of the fixed sleeve 27 does not contact the detector body 20, and a guide groove 28 is provided on the inner wall of the fixed sleeve 27, the guide groove 28 is designed in a V-shape, the inner wall of the guide groove 28 is in contact with a guide slider 29, the guide slider 29 is slidably connected inside the guide groove 28, and the guide slider 29 is provided with two groups, the side of the guide slider 29 close to the detector body 20 is fixedly connected to the bottom end of the connecting rod 31, both sides of the connecting rod 31 do not contact the inner wall of the fixed sleeve 27 and the outer side of the detector body 20, and the top of the connecting rod 31 is fixedly connected with a scraper block 32, and the cross section of the scraper block 32 is designed in a trapezoidal shape;

[0035] Furthermore, the mounting assembly includes a mounting groove 46, which is provided at the top of the rotating sleeve 25, the mounting groove 46 is communicated with the sliding groove 24, and two groups of rubber stoppers 45 are fixedly connected to the inner wall of the mounting groove 46;

[0036] The structural design of the telescopic mechanism realizes the function of protecting the detector head 1, so as to ensure the cleanliness of the detector head 1 in daily placement. When working, the high-voltage sensitive AC amplifier inside the detector head 1 can detect the leakage area and generate an alarm. When the leakage of the power meter is to be detected, first hold the rubber grip 21 set on the bottom end of the detector body 20 by hand, and then rotate the connecting base 26 to open the rotating ring 34 fixed on the fixing block 33 on the inner wall of the connecting base 26. The rotating sleeve 25 is fixed on the top of the connecting base 26 and will rotate synchronously. During the rotation of the rotating sleeve 25, since the inner wall of the sliding groove 24 contacts the sliding block 23, the sliding block 23 will slide along the sliding groove 24. As the rotating sleeve 25 rotates continuously, the sliding block 23 will gradually move downward until it moves to the bottom end of the inner wall of the sliding groove 24. The sliding block 23 is fixed on the bottom end of the telescopic sleeve 22, so the sliding block 23 3 moves on the sliding groove 24, which will drive the telescopic sleeve 22 to move downward on the detector head 1, so that the detector head 1 gradually leaks out. At this time, the detector head 1 can be used to detect the leakage. Similarly, when the detector head 1 is not needed, it is only necessary to reversely rotate the connecting base 26 again, and the sliding block 23 will gradually move upward along the sliding groove 24 until the sliding block 23 moves to the top of the inner wall of the sliding groove 24. At this time, the telescopic sleeve 22 can protect the detector head 1 and provide a protective cover for the detector head 1. The relatively sealed space prevents dust and debris from adhering to the detector head 1 when the detector head 1 is placed, wherein the inner wall of the telescopic sleeve 22 does not contact the detector head 1, thereby preventing the telescopic sleeve 22 from rubbing against the surface of the detector head 1 during movement, and the connecting base 26 does not contact the fixed block 33, thereby preventing the connecting base 26 from rubbing against the fixed block 33 during rotation. The rubber block 53 provides support for the telescopic sleeve 22 by abutting against the inner wall of the telescopic sleeve 22, thereby ensuring that the telescopic sleeve 22 does not fall downward due to gravity.

[0037] Through the structural design of the scraping mechanism, the function of facilitating the scraping of dust and debris attached to the surface of the detector head 1 is realized, so as to keep the detector head 1 clean and tidy, avoid the need to manually clean the dust and debris on the surface of the detector head 1, and facilitate the use of the detector head 1. In the process of rotating the connecting base 26 to drive the rotating sleeve 25 to rotate, the fixed sleeve 27 fixed on the inner wall of the rotating sleeve 25 will rotate synchronously with the rotating sleeve 25. A guide groove 28 is provided on the inner wall of the fixed sleeve 27. A guide slider 29 is slidably connected inside the guide groove 28. The guide slider 29 will slide along the inner wall of the guide groove 28. Since the guide groove 28 is designed in a V-shape, the guide slider 29 will gradually move from the bottom end of the guide groove 28 to the guide groove. 28, the guide slider 29 is connected to the connecting rod 31, so when the guide slider 29 slides in the guide groove 28, it will drive the connecting rod 31 to move upward, and the top of the connecting rod 31 is connected to the bottom end of the scraper block 32, and the top of the scraper block 32 contacts the inner wall of the detector head 1. When the scraper block 32 moves upward, the scraper block 32 can scrape the outside of the detector head 1 to remove dust and debris attached to the outside of the detector head 1, avoiding the need to manually wipe the detector head 1, so as to keep the detector head 1 clean. Similarly, when the connecting base 26 is rotated in the opposite direction, the guide slider 29 located at the highest point of the guide groove 28 will gradually slide to the bottom of the guide groove 28, and the scraper block 32 is made of plastic.

[0038] The structural design of the mounting assembly realizes the function of facilitating the installation and fixing between the telescopic sleeve 22 and the rotating sleeve 25 and removing the telescopic sleeve 22 from the rotating sleeve 25, so as to facilitate the assembly and removal of the telescopic sleeve 22, and to facilitate the cleaning of the scraper block 32 inside the rotating sleeve 25, thereby ensuring the cleanliness of the scraper block 32. When the telescopic sleeve 22 is to be removed from the rotating sleeve 25, the telescopic sleeve 22 is first rotated along the direction of the mounting groove 46, and the sliding block 23 fixed on the bottom end of the telescopic sleeve 22 will abut against the rubber stopper 45, and the deformation of the rubber stopper 45 ensures that the sliding The moving block 23 can smoothly pass through the rubber stopper 45, and then by pulling the telescopic sleeve 22 upward, the sliding block 23 will slide out of the installation groove 46, thereby completing the disassembly between the telescopic sleeve 22 and the rotating sleeve 25. After the telescopic sleeve 22 is removed, the scraper block 32 originally sleeved inside the telescopic sleeve 22 will leak out, and it is convenient to clean the scraper block 32. Similarly, when the telescopic sleeve 22 is to be reinstalled on the rotating sleeve 25, first align the sliding block 23 with the installation groove 46 and insert it, and rotate the telescopic sleeve 22 so that the sliding block 23 can pass through the two sets of rubber stoppers 45 and move to the sliding groove 24 to complete the installation.

[0039] Furthermore, a support block 30 is fixedly connected to the top of the fixed sleeve 27, the inner wall of the support block 30 is in contact with the connecting rod 31, the support block 30 is located at the bottom of the sliding groove 24, and the two sides of the support block 30 are not in contact with the inner wall of the rotating sleeve 25 and the outer side of the detector body 20;

[0040] During operation, the support block 30 is fixed at the top of the fixed sleeve 27 and keeps in contact with the connecting rod 31. The support block 30 can support and fix the connecting rod 31 when the connecting rod 31 moves up and down, and limit the movement of the connecting rod 31 in the horizontal direction, ensuring that the connecting rod 31 can remain stable during the movement, and the top of the support block 30 is located below the bottom end of the sliding groove 24, so as to ensure that when the telescopic sleeve 22 moves downward to the bottom, the bottom end of the telescopic sleeve 22 will not abut against the support block 30.

[0041] Further, the bottom end of the connecting base 26 is fixedly connected with an extension base 40, the inner wall of the extension base 40 does not contact the outer side of the detector body 20, and the bottom end of the extension base 40 is fixedly connected with two groups of limit blocks 42, one group of the limit blocks 42 abuts against a fixed block 43, and the fixed block 43 is fixedly connected to the detector body 20, and the limit blocks 42 and the fixed blocks 43 are both designed in a long rectangle, and the bottom ends of the limit blocks 42 and the fixed blocks 43 do not contact the top end of the rubber grip 21;

[0042] During operation, the extension base 40 is fixed to the bottom end of the connecting base 26 and the inner wall of the extension base 40 does not contact the detector body 20, so as to ensure the smooth rotation of the extension base 40, and a limit stop block 42 is fixed on the bottom end of the extension base 40, and a fixed stop block 43 is fixed on the detector body 20. The fixed stop block 43 is used to limit the range in which the two groups of limit stops 42 can move, thereby limiting the rotation angle of the connecting base 26, so as to ensure that the connecting base 26 is in the same position every time it is rotated to the maximum angle.

[0043] Furthermore, a plurality of groups of rectangular grooves 38 are provided on the inner wall of the extension base 40, and a spring 39 is fixedly connected to the inner wall of the rectangular groove 38, and one side of the spring 39 is fixedly connected to a receiving ball 41, and the receiving ball 41 is slidably connected to the inside of the rectangular groove 38, and the side of the receiving ball 41 away from the spring 39 is clamped on the clamping groove 54, and the clamping groove 54 is provided on the outer side of the detector body 20, and the clamping groove 54 is distributed in a circle on the detector body 20;

[0044] During operation, the rectangular groove 38 is designed to be rectangular so that the receiving ball 41 can slide smoothly inside the rectangular groove 38. The receiving ball 41 is connected by a spring 39. When the rotating connecting base 26 drives the extension base 40 fixed at its bottom end to rotate, the receiving ball 41 will slide out of the slot 54 and abut against the outer side of the detector body 20. At this time, the receiving ball 41 will move toward the inside of the rectangular groove 38, and the spring 39 will be compressed. When the receiving ball 41 rotates to the next group of slots 54, under the action of the spring 39, the receiving ball 41 will be smoothly pushed and engaged with the slot 54. The design of the receiving ball 41 allows the position of the connecting base 26 to remain fixed during the rotation of the connecting base 26, thereby preventing the connecting base 26 from rotating due to accidental contact.

[0045] Furthermore, a plurality of grooves 36 are provided on the inner wall of the connection base 26, and a rotating column 35 is rotatably connected to the inner wall of the groove 36, and the rotating column 35 is in contact with the outer side of the detector body 20;

[0046] During operation, the rotating column 35 is rotatably connected to the inside of the groove 36 , so that the connecting base 26 can be rotated on the fixing block 33 more smoothly and stably through the rotating column 35 .

[0047] Embodiment 2

[0048] See also Figure 4 As shown, Comparative Example 1 is another embodiment of the present invention, the top of the telescopic sleeve 22 is fixedly connected with a metal ring 47, the metal ring 47 is rotatably connected with a rotating cover plate 48, the rotating cover plate 48 is provided with an arc groove 50, and the interior of the arc groove 50 is fixedly connected with a magnet 51;

[0049] During operation, a metal ring 47 is fixed to the top of the telescopic sleeve 22, and a magnet 51 is fixed to the rotating cover 48, so that the rotating cover 48 can be fixed to the metal ring 47 by the attraction of the magnet 51 to the metal ring 47. The top of the telescopic sleeve 22 is closed by rotating the cover 48, so that the telescopic sleeve 22 has a better protective effect on the detector head 1. The rotating cover 48 is also made of metal, so that when a collision occurs, the rotating cover 48 can effectively protect the detector head 1.

[0050] A circular groove 49 is formed in the middle of the rotating cover plate 48, and a rubber gasket 52 is fixedly connected inside the circular groove 49, and the bottom end of the rubber gasket 52 contacts the top end of the detector head 1;

[0051] During operation, a rubber gasket 52 is fixed inside the circular groove 49. When the rotating cover 48 is closed, the rubber gasket 52 will contact the detector head 1, so that when the telescopic sleeve 22 moves downward, the rubber gasket 52 can buffer the space between the top of the detector head 1 and the rotating cover 48.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A leakage detector for an electric power meter, comprising a detector head (1), wherein the detector head (1) is fixedly connected to a detector body (20), and a rubber grip (21) is sleeved on the bottom end of the detector body (20), characterized in that: The outer side of the detector head (1) is provided with a telescopic sleeve (22), the bottom end of the telescopic sleeve (22) is provided with a telescopic mechanism, the telescopic mechanism is used to telescope the telescopic sleeve (22), the inner wall of the telescopic sleeve (22) does not contact the detector head (1), the surface of the detector head (1) contacts the top of the scraper block (32), the bottom end of the scraper block (32) is provided with a scraping mechanism, the scraping mechanism is used to lift the scraper block (32) so as to scrape dust and debris on the surface of the detector head (1), the outer side of the telescopic sleeve (22) is in contact with the inner wall of the rotating sleeve (25), the rotating sleeve (25) is provided with a mounting assembly, the mounting assembly is used to install and remove the telescopic sleeve (22); The scraping mechanism comprises a fixed sleeve (27), wherein the fixed sleeve (27) is fixedly connected to the bottom end of the inner wall of the rotating sleeve (25), the inner wall of the fixed sleeve (27) does not contact the detector body (20), a guide groove (28) is provided on the inner wall of the fixed sleeve (27), the guide groove (28) is designed in a V-shape, the inner wall of the guide groove (28) contacts a guide slider (29), the guide slider (29) is slidably connected inside the guide groove (28), two groups of guide sliders (29) are provided, the side of the guide slider (29) close to the detector body (20) is fixedly connected to the bottom end of the connecting rod (31), both sides of the connecting rod (31) do not contact the inner wall of the fixed sleeve (27) and the outer side of the detector body (20), and the top of the connecting rod (31) is fixedly connected to a scraping block (32), and the cross section of the scraping block (32) is designed in a trapezoidal shape; A support block (30) is fixedly connected to the top end of the fixed sleeve (27), the inner wall of the support block (30) is in contact with the connecting rod (31), the support block (30) is located at the bottom end of the sliding groove (24), and the two sides of the support block (30) are not in contact with the inner wall of the rotating sleeve (25) and the outer side of the detector body (20).

2. The leakage detector for an electric power meter according to claim 1, characterized in that: The telescopic mechanism comprises four groups of sliding blocks (23), the four groups of sliding blocks (23) being fixedly connected to the outside of the telescopic sleeve (22) at positions close to the bottom end, the sliding blocks (23) being distributed in a circumferential manner on the telescopic sleeve (22), the inner wall of the telescopic sleeve (22) being in contact with a rubber block (53), the rubber block (53) being fixedly connected to the outside of the detector head (1), the sliding blocks (23) being slidably connected to the inner wall of a sliding groove (24), the sliding groove (24) being provided on the rotating sleeve (25), the bottom end of the rotating sleeve (25) being fixedly connected to a connection bottom The rotating sleeve (25) and the connecting base (26) are both sleeved on the outer side of the detector body (20); the inner wall of the connecting base (26) does not contact the fixed block (33); a rotating groove (37) is provided in the middle of the inner wall of the connecting base (26); a fixed ring (34) is slidably connected inside the rotating groove (37); the fixed ring (34) and the rotating groove (37) are both T-shaped; the fixed ring (34) is fixedly connected to the outer side of the fixed block (33); and the fixed block (33) is sleeved on a position close to the middle of the detector body (20).

3. The leakage detector for an electric power meter according to claim 1, characterized in that: The mounting assembly comprises a mounting groove (46), the mounting groove (46) being disposed at the top end of the rotating sleeve (25), the mounting groove (46) being communicated with the sliding groove (24), and two groups of rubber stoppers (45) being fixedly connected to the inner wall of the mounting groove (46).

4. The leakage detector for an electric power meter according to claim 2, characterized in that: The bottom end of the connecting base (26) is fixedly connected to an extension base (40), the inner wall of the extension base (40) does not contact the outer side of the detector body (20), the bottom end of the extension base (40) is fixedly connected to two groups of limit blocks (42), one group of the limit blocks (42) abuts against a fixed block (43), the fixed block (43) is fixedly connected to the detector body (20), the limit blocks (42) and the fixed blocks (43) are both designed as long rectangles, and the bottom ends of the limit blocks (42) and the fixed blocks (43) do not contact the top end of the rubber grip (21).

5. The leakage detector for an electric power meter according to claim 4, characterized in that: A plurality of groups of rectangular grooves (38) are provided on the inner wall of the extension base (40); a spring (39) is fixedly connected to the inner wall of the rectangular groove (38); one side of the spring (39) is fixedly connected to a latching ball (41); the latching ball (41) is slidably connected inside the rectangular groove (38); a side of the latching ball (41) away from the spring (39) is latched on a latching groove (54); the latching groove (54) is provided on the outer side of the detector body (20); and the latching grooves (54) are distributed in a circular pattern on the detector body (20).

6. The leakage detector for an electric power meter according to claim 4, characterized in that: The inner wall of the connection base (26) is provided with a plurality of groups of grooves (36), and a rotating column (35) is rotatably connected to the inner wall of the groove (36), and the rotating column (35) is in contact with the outer side of the detector body (20).

7. The leakage detector for an electric power meter according to claim 2, characterized in that: A metal ring (47) is fixedly connected to the top end of the telescopic sleeve (22), a rotating cover plate (48) is rotatably connected to the metal ring (47), an arc-shaped groove (50) is formed on the rotating cover plate (48), and a magnet (51) is fixedly connected inside the arc-shaped groove (50).

8. The leakage detector for an electric power meter according to claim 7, characterized in that: A circular groove (49) is provided in the middle of the rotating cover plate (48), a rubber gasket (52) is fixedly connected inside the circular groove (49), and the bottom end of the rubber gasket (52) is in contact with the top end of the detector head (1).

Images