Electric leakage detection device for electrical equipment

Abstract

The utility model relates to the field of electrical equipment detection, in particular to an electrical equipment electric leakage detection device which comprises an electric leakage detector body and an electric leakage detection pen, a wire is arranged between the electric leakage detector body and the electric leakage detection pen, an insulating shell is arranged on the outer side of the electric leakage detection pen, and a moving mechanism is arranged on the inner side of the insulating shell. According to the device, a worker can conveniently drive a driven gear by rotating a driving gear so as to drive a screw rod to rotate, the screw rod rotates to drive a moving block to slide through threaded connection, so that the extension and retraction operations of the electric leakage detection pen are realized, and the rotation direction of the screw rod is limited through the mutual cooperation of a ratchet wheel and a pawl; when the screw drives the ratchet wheel to rotate towards one side, the pawl is pushed and reset, and when the ratchet wheel tries to rotate reversely, the pawl limits the rotation of the ratchet wheel, so that the electric leakage detection pen can be kept stable after extending out and is not easy to retract due to misoperation or external factors.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electrical equipment detection technical field, especially related to an electrical equipment leakage detection device. BACKGROUND

[0002] Leakage refers to the abnormal loss of current in electrical equipment or circuit to ground or other places that should not be lost, causing the "leakage" of current, which is usually caused by factors such as aging, damage, wet environment, equipment failure or circuit failure. Leakage detection refers to measuring and analyzing the leakage phenomenon in electrical equipment or circuit by professional test instruments and methods to determine whether there is a leakage hazard and take appropriate measures to prevent accidents. Leakage detection is an important part of ensuring the safe operation of electrical equipment.

[0003] After searching, in the prior art, Chinese patent publication No. CN220752292U, authorized on April 9, 2024, discloses a fire leakage detection device for electrical equipment, which comprises an insulating shell, an adjusting assembly for adjusting the length of the detection device is installed on the inner side of the insulating shell, a detection assembly for detecting electrical equipment is installed on the outer side of the insulating shell, the adjusting assembly comprises a partition plate fixedly connected between the inner top wall and the inner bottom wall of the insulating shell, a connecting hole is formed in the right side of the partition plate, a communication hole is formed in the right side of the insulating shell, and a sliding rod is fixedly connected between the inner top wall and the inner bottom wall of the connecting hole and the communication hole. The fire leakage detection device for electrical equipment can increase the distance between the human body and the equipment to be detected without affecting the detection work, and can also conveniently detect the equipment detection points within a certain height, greatly improving the practicality of the fire leakage detection device for electrical equipment.

[0004] However, the device still has the following defects: although the detection rod can be moved, the detection rod can be moved out from the inner side of the insulating shell when needed, so that the leakage detection of the electrical equipment can be smoothly carried out, but when the detection rod is limited, the friction between the anti-skid pad and the right side sliding rod is mainly relied on to limit the detection rod, and after a long time of use, the anti-skid effect of the anti-skid pad will be reduced, so that the detection rod may be loose when in use, and when detecting the leakage of the electrical equipment, the detection probe body needs to be tightly attached to the equipment to ensure that the electrical equipment can be detected smoothly, but only relying on the friction force to limit the detection rod, the detection rod may slide reversely due to the tightness between the detection probe body and the equipment, so that the stability of the detection rod is not good enough when detecting the electrical equipment. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of electrical equipment electric leakage detection device, including electric leakage detector body and electric leakage detection pen, electric leakage detector body and electric leakage detection pen between being provided with wire, the outside of electric leakage detection pen is provided with insulating shell, the inside of insulating shell is provided with moving mechanism;

[0006] The moving mechanism includes a screw rod rotatably connected to the inside of the insulating shell, a ratchet fixedly connected to the outside of the screw rod, a fixed block fixedly connected to the inside of the insulating shell, a pawl rotatably connected to one side of the fixed block, a return spring fixedly connected between the pawl and the insulating shell, the outside of the pawl engaged with the ratchet, and a fixed rod fixedly connected to the inside of the insulating shell.

[0007] Further, the outside of the fixed rod is fixedly connected with a driving gear, the outside of the screw rod is fixedly connected with a driven gear, the driving gear and the driven gear are engaged with each other, the outside of the screw rod is threadedly connected with a moving block, the moving block is slidably connected to the inside of the insulating shell, and one side of the moving block is connected to one side of the electric leakage detection pen.

[0008] Further, the outside of the pawl is fixedly connected with a reset pull rod, one side of the insulating shell is provided with a sliding groove, the reset pull rod is slidably connected to the inside of the sliding groove, and one end of the reset pull rod is fixedly connected with a pull block.

[0009] Further, the inside of the insulating shell is fixedly connected with a limiting rod, and the moving block is slidably connected to the outside of the limiting rod.

[0010] Further, the outside of the screw rod is provided with a hollow groove, the inside of the ratchet is fixedly connected with a reinforcing block, and the reinforcing block is movably clamped to the inside of the hollow groove.

[0011] Further, the inside of the insulating shell is fixedly connected with a cushioning block, and the electric leakage detection pen is slidably connected to the inside of the cushioning block.

[0012] Further, the inside of the moving block is movably bonded with a first rubber ring, the inside of the insulating shell is movably bonded with a second rubber ring, and the wire is arranged inside the first rubber ring and the second rubber ring.

[0013] Further, one side of the insulating shell away from the wire is provided with a slot, one side of the insulating shell is provided with a stop block, one side of the stop block is fixedly connected with a plug, and the plug is movably inserted into the inside of the slot.

[0014] The utility model has the advantages that:

[0015] 1、The staff in the device can conveniently drive the driven gear by rotating the driving gear, and then drive the screw to rotate, the rotation of the screw drives the moving block to slide through the threaded connection, so as to realize the extension and retraction operation of the leakage detection pen, the mutual cooperation of the ratchet and the pawl realizes the limitation of the rotation direction of the screw, when the screw drives the ratchet to rotate to one side, the pawl is pushed and reset, and when the ratchet tries to rotate reversely, the pawl will limit its rotation, so that the leakage detection pen can be kept stable after extension, and is not easy to be retracted due to misoperation or external factors.

[0016] 2、The setting of the first rubber ring and the second rubber ring in the device makes the wire not easy to be damaged and seriously worn on the outside due to the friction between the wire and the insulating shell and the moving block during use, so as to realize the protection effect of the wire outside.

[0017] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the description and claims hereof as well as in the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 A structural body diagram according to an embodiment of the present application is shown;

[0020] Figure 2 A schematic view of the internal structure of the insulating shell according to an embodiment of the present application is shown;

[0021] Figure 3 A schematic view of the side structure of the insulating shell according to an embodiment of the present application is shown;

[0022] Figure 4 A schematic view of the structure of the moving block and the reset pull rod according to an embodiment of the present application is shown;

[0023] Figure 5 A schematic view of the structure of the pawl and the reset spring according to an embodiment of the present application is shown;

[0024] Figure 6 A schematic view of the structure of the slot and the plug according to an embodiment of the present application is shown.

[0025] In the figure: 1, leakage detector body; 2, wire; 3, leakage detection pen; 4, insulating shell; 5, moving mechanism; 51, screw rod; 52, ratchet wheel; 53, fixed block; 54, pawl; 55, return spring; 56, fixed rod; 57, driving gear; 58, driven gear; 59, moving block; 61, reset pull rod; 62, pull block; 63, sliding groove; 7, pad block; 8, limiting rod; 91, hollow groove; 92, reinforcing block; 101, first rubber ring; 102, second rubber ring; 111, stop block; 112, insertion slot; 113, insertion block. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0027] The embodiments of the present application provide a leakage detection device for electrical equipment, which comprises a leakage detector body 1 and a leakage detection pen 3, and is exemplified as shown in the figure. Figures 1-6

[0028] A wire 2 is arranged between the leakage detector body 1 and the leakage detection pen 3, an insulating shell 4 is arranged on the outer side of the leakage detection pen 3, and a moving mechanism 5 is arranged on the inner side of the insulating shell 4.

[0029] The moving mechanism 5 comprises a screw rod 51 rotatably connected to the inner side of the insulating shell 4, a ratchet wheel 52 fixedly connected to the outer side of the screw rod 51, a fixed block 53 fixedly connected to the inner side of the insulating shell 4, a pawl 54 rotatably connected to one side of the fixed block 53, a return spring 55 fixedly connected between the pawl 54 and the insulating shell 4, and a fixed rod 56 fixedly connected to the inner side of the insulating shell 4.

[0030] A driving gear 57 is fixedly connected to the outer side of the fixed rod 56, a driven gear 58 is fixedly connected to the outer side of the screw rod 51, the driving gear 57 and the driven gear 58 are engaged with each other, a moving block 59 is threadedly connected to the outer side of the screw rod 51, the moving block 59 is slidably connected to the inner side of the insulating shell 4, and one side of the moving block 59 is connected to one side of the leakage detection pen 3.

[0031] ​Specifically, the lead 2 can be used to connect the leakage detector body 1 and the leakage detection pen 3, and the leakage detector body 1 and the leakage detection pen 3 can realize leakage detection of the electrical equipment, facilitate the staff to judge the leakage condition of the electrical equipment, and the leakage detector body 1, the lead 2 and the leakage detection pen 3 are all prior art in the field, so too much is not described here;

[0032] In addition, when the screw rod 51 rotates, the moving block 59 and the leakage detection pen 3 can be driven to move through the threaded connection between the screw rod 51 and the moving block 59, so that the leakage detection pen 3 can be smoothly and normally used by being stretched out of the inside of the insulating shell 4. When the screw rod 51 rotates, the ratchet wheel 52 will be driven to rotate. When the ratchet wheel 52 rotates to one side, the pawl 54 will be pushed, and the pawl 54 after being pushed will be reset under the elastic action of the reset spring 55. When the ratchet wheel 52 reversely rotates, the pawl 54 will limit the ratchet wheel 52, so that the ratchet wheel 52 is not easy to reversely rotate, thereby limiting the extension of the leakage detection pen 3.

[0033] In addition, the fixed rod 56 can be connected with the driving gear 57, and the driving gear 57 and the driven gear 58 can be arranged to facilitate the staff to rotate the screw rod 51 and the ratchet wheel 52. In addition, the arrangement of the ratchet wheel 52 and the pawl 54 can effectively reduce the possibility of reverse rotation of the screw rod 51 due to the staff's hand slipping.

[0034] The outer side of the pawl 54 is fixedly connected with a reset pull rod 61, and one side of the insulating shell 4 is provided with a sliding groove 63, as shown in Figures 1-6

[0035] The reset pull rod 61 is slidingly connected to the inside of the sliding groove 63, and one end of the reset pull rod 61 is fixedly connected with a pull block 62.

[0036] The inside of the insulating shell 4 is fixedly connected with a limiting rod 8, and the moving block 59 is slidingly connected to the outside of the limiting rod 8.

[0037] The outer side of the screw rod 51 is provided with a hollow groove 91, the inside of the ratchet wheel 52 is fixedly connected with a reinforcing block 92, and the reinforcing block 92 is movably clamped to the inside of the hollow groove 91.

[0038] Specifically, when the staff needs to retract the leakage detection pen 3, the screw rod 51 needs to be reversely rotated, and the pull block 62 can drive the pawl 54 to move together through the reset pull rod 61 when the pull block 62 is pulled, so as to cancel the limitation of the pawl 54 on the ratchet wheel 52, so that the ratchet wheel 52 can reversely rotate with the screw rod 51, and the leakage detection pen 3 can be retracted and stored;

[0039] ​In addition, the setting of the limiting rod 8 can further improve the stability of the moving block 59 when sliding on the inner side of the insulating shell 4, so that the moving block 59 is not easy to shake or deviate when sliding;

[0040] In addition, the setting of the hollow groove 91 and the reinforcing block 92 can further strengthen the connection between the ratchet 52 and the screw rod 51, so that the screw rod 51 and the ratchet 52 can be stable enough during rotation and use, and the connection is not easy to be unstable.

[0041] The inner side of the insulating shell 4 is fixedly connected with the heightening block 7, and the electric leakage detection pen 3 is slidingly connected to the inner side of the heightening block 7, as shown in Figures 1-6 .

[0042] The inner side of the moving block 59 is movably bonded with the first rubber ring 101, the inner side of the insulating shell 4 is movably bonded with the second rubber ring 102, and the wire 2 is arranged on the inner side of the first rubber ring 101 and the second rubber ring 102.

[0043] The side of the insulating shell 4 away from the wire 2 is provided with a slot 112, one side of the insulating shell 4 is provided with a stop block 111, one side of the stop block 111 is fixedly connected with a plug 113, and the plug 113 is movably inserted into the inner side of the slot 112.

[0044] Specifically, the setting of the heightening block 7 enables the electric leakage detection pen 3 to be smoothly moved out of the inner side of the insulating shell 4, and the electric leakage detection pen 3 is not easy to be tilted at one end and cannot be smoothly moved out of the inner side of the insulating shell 4 during movement;

[0045] In addition, the setting of the first rubber ring 101 and the second rubber ring 102 enables the wire 2 to be not easy to be damaged or severely worn on the outer side due to friction with the insulating shell 4 and the moving block 59 during use, thereby realizing the protection effect of the outer side of the wire 2;

[0046] In addition, the connection between the slot 112 and the plug 113 enables the stop block 111 to be smoothly connected to the inner side of the insulating shell 4, thereby realizing the shielding of one side of the insulating shell 4, so that when the electric leakage detection pen 3 is not needed to be used, some small tools and small garbage are not easy to enter the inner side of the insulating shell 4.

[0047] The working principle of the electric leakage detection device is as follows:

[0048] In use, the staff can manually rotate the driving gear 57, the driving gear 57 and the driven gear 58 are engaged with each other, drive the screw 51 to rotate, the rotation of the screw 51 through the threaded connection drive the moving block 59 along the inside of the insulating shell 4 sliding, in turn drive the leakage detection pen 3 to extend, in the process of rotating the screw 51, the ratchet 52 rotates, the pawl 54 is compressed under the ratchet 52 reset spring 55 under the push of, when the ratchet 52 rotates in the opposite direction, the pawl 54 is stuck in the ratchet 52 under the action of reset spring 55, prevent its reverse rotation, thereby realizing the limiting of the leakage detection pen 3 after extending, after the leakage detection pen 3 extends, the staff can carry out the leakage detection of electrical equipment through it.

[0049] When the leakage detection pen 3 needs to be retracted, the staff pulls the pull block 62, moves the pawl 54 through the reset pull rod 61, cancels the pawl 54 limit to the ratchet 52, then reversely rotate the driving gear 57, drive the screw 51 to rotate reversely through the driven gear 58, the reverse rotation of the screw 51 through the threaded connection drive the moving block 59 along the inside of the insulating shell 4 sliding, in turn drive the leakage detection pen 3 to retract to the inside of the insulating shell 4, thereby realizing the retraction of the leakage detection pen 3.

[0050] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, and these modifications or replacements, do not make the essence of corresponding technical scheme deviate from the spirit and scope of the utility model each embodiment technical scheme.

Claims

1. An electrical equipment leakage current detection device, comprising a leakage current detector body (1) and a leakage current detection pen (3), characterized in that: A wire (2) is provided between the leakage current detector body (1) and the leakage current detection pen (3). An insulating shell (4) is provided on the outside of the leakage current detection pen (3), and a moving mechanism (5) is provided on the inside of the insulating shell (4). The moving mechanism (5) includes a screw (51) rotatably connected to the inside of the insulating housing (4), a ratchet (52) fixedly connected to the outside of the screw (51), a fixing block (53) fixedly connected to the inside of the insulating housing (4), a pawl (54) rotatably connected to one side of the fixing block (53), a return spring (55) fixedly connected between the pawl (54) and the insulating housing (4), the outside of the pawl (54) meshing with the ratchet (52), and a fixing rod (56) fixedly connected to the inside of the insulating housing (4).

2. The electrical equipment leakage current detection device according to claim 1, characterized in that: A drive gear (57) is fixedly connected to the outside of the fixed rod (56), and a driven gear (58) is fixedly connected to the outside of the screw (51). The drive gear (57) and the driven gear (58) mesh with each other. A moving block (59) is threadedly connected to the outside of the screw (51), and the moving block (59) is slidably connected to the inside of the insulating shell (4). One side of the moving block (59) is connected to one side of the leakage current detection pen (3).

3. The electrical equipment leakage current detection device according to claim 2, characterized in that: A reset lever (61) is fixedly connected to the outside of the pawl (54). A groove (63) is provided on one side of the insulating housing (4). The reset lever (61) is slidably connected to the inside of the groove (63). A pull block (62) is fixedly connected to one end of the reset lever (61).

4. The electrical equipment leakage current detection device according to claim 3, characterized in that: A limiting rod (8) is fixedly connected to the inner side of the insulating shell (4), and the moving block (59) is slidably connected to the outer side of the limiting rod (8).

5. The electrical equipment leakage current detection device according to claim 4, characterized in that: A hollow groove (91) is provided on the outer side of the screw (51), and a reinforcing block (92) is fixedly connected to the inner side of the ratchet (52). The reinforcing block (92) is movably engaged with the inner side of the hollow groove (91).

6. The electrical equipment leakage current detection device according to claim 3, characterized in that: A shim block (7) is fixedly connected to the inner side of the insulating shell (4), and the leakage current detection pen (3) is slidably connected to the inner side of the shim block (7).

7. The electrical equipment leakage current detection device according to claim 2, characterized in that: The inner side of the movable block (59) is movably bonded with a first rubber ring (101), the inner side of the insulating shell (4) is movably bonded with a second rubber ring (102), and the wire (2) is disposed inside the first rubber ring (101) and the second rubber ring (102).

8. The electrical equipment leakage current detection device according to claim 6, characterized in that: The insulating shell (4) has a slot (112) on the side away from the wire (2), and a stop (111) is provided on one side of the insulating shell (4). A plug (113) is fixedly connected to one side of the stop (111), and the plug (113) is movably inserted into the inside of the slot (112).

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