Electric leakage detection device for electrical fire protection

Abstract

The utility model provides an electrical fire-fighting electric leakage detection device, which comprises a machine body, a probe head positioned at one end of the machine body, a fixed seat positioned at the other end of the machine body, an operating rod slidably arranged in a fixed cylinder, and a locking assembly comprising the fixed cylinder and a threaded cylinder, one end of the fixing cylinder is arranged on the fixing base and sleeved with the operating rod, the other end of the fixing cylinder is provided with an elastic piece, the threaded cylinder is in threaded connection with the fixing cylinder, and the threaded cylinder moves in the axis direction of the fixing cylinder so that the elastic piece can abut against the operating rod. According to the electrical fire-fighting electric leakage detection device, the threaded cylinder is rotated to move along the axis direction of the fixed cylinder, the threaded cylinder is in threaded connection with the fixed cylinder, the rotation of the threaded cylinder enables the threaded cylinder to move upwards relative to the fixed cylinder, and an inward extrusion force is generated on the elastic piece; and the elastic piece elastically deforms inwards to clamp and fix the operating rod, so that the limiting effect is achieved, adjustment is easy, use is convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to an electrical fire protection leakage detection device. Background Art

[0002] Leakage is the leakage of current caused by insulation damage or other reasons. When the housing of the appliance is connected to the live wire of the mains for some reason, there is a certain potential difference between the ground and the appliance, which will cause leakage. Leakage is a dangerous situation, so it is necessary to detect leakage in advance.

[0003] The existing Chinese patent with application number CN201921704111.5 provides an electrical fire protection leakage detection device, which relates to the technical field of electrical safety detection equipment. It aims to solve the technical problem that the insulating rod and the body of the leakage detection device are fixedly connected. When the detection device is operating in a more complex working environment, the length between the insulating rod and the body cannot be extended, which leads to a long detection time of the detection device and affects its detection efficiency. The key points of its technical solution are to set an operating rod and a fixed cylinder with a fastening member to extend and fix the position of the operating rod relative to the fixed cylinder, so as to facilitate the detection of the operator; set a fitting sheet to expand the contact area of ​​the fastening member, thereby reducing the loosening and slipping of the operating rod in the fixed cylinder; set a rotating block to increase the speed of the operator fixing the operating rod, so as to effectively ensure the detection efficiency of the detection device.

[0004] However, the above leakage detection device needs to frequently rotate the rotating block during actual use, which makes its adjustment and use inconvenient, thereby resulting in a long detection time of the detection device and affecting its detection efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an electrical fire protection leakage detection device to solve the technical problem that the leakage detection device in the related technology needs to frequently rotate the rotating block during actual use, making its adjustment and use inconvenient, which in turn leads to a long detection time of the detection device and affects its detection efficiency.

[0006] The utility model provides an electrical fire protection leakage detection device, comprising a body, a probe head at one end of the body, a fixing seat at the other end of the body, and an operating rod slidably arranged in a fixing cylinder, and also comprising a locking assembly, wherein the locking assembly comprises:

[0007] A fixed cylinder, one end of which is arranged on the fixed seat and sleeved with an operating rod, and the other end of which is provided with an elastic member;

[0008] The threaded cylinder is threadably connected to the fixed cylinder, and the threaded cylinder moves along the axial direction of the fixed cylinder to make the elastic member abut against the operating rod or separate from the operating rod.

[0009] Furthermore, the elastic members are arranged in three groups equidistantly along the circumferential direction of the fixed cylinder, the thickness of the upper end is greater than the thickness of the lower end, and the cross section is in an inverted trapezoid from top to bottom.

[0010] Furthermore, a non-slip pad is bonded to the inner side of the elastic member.

[0011] Furthermore, an operating portion is provided on the threaded barrel, and a plurality of anti-skid patterns and / or anti-skid grooves are provided on the operating portion.

[0012] Furthermore, a limiting groove is provided on the inner wall of the fixing seat, and a limiting block is provided on the outer side of the operating rod, and the limiting block is slidably connected to the limiting groove.

[0013] Furthermore, a spring is provided in the fixing seat, one end of the spring at two opposite ends is connected to the operating rod, and the other end is connected to the inner bottom wall of the fixing seat.

[0014] Furthermore, a first threaded portion is formed on the outer side surface of the elastic member, and the first threaded portion is connected to the thread of the fixing tube.

[0015] Furthermore, a second threaded portion is formed on the inner side surface of the threaded barrel, and the second threaded portion is meshed with the fixed barrel and the first threaded portion.

[0016] Furthermore, a protective sleeve is arranged above the elastic member, and the lower end of the inner side surface of the protective sleeve is bonded to the upper end of the outer side surface of the threaded barrel.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The electrical fire-fighting leakage detection device of the utility model moves the threaded barrel along the axial direction of the fixed barrel by rotating the threaded barrel. Since the threaded barrel is threadedly connected to the fixed barrel, the rotation of the threaded barrel causes the threaded barrel to move upward relative to the fixed barrel and generates an inward squeezing force on the elastic member, causing the elastic member to elastically deform inward to clamp and fix the operating rod, thereby achieving a limiting effect on the operating rod. The device is easy to adjust and easy to use, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of an electrical fire protection leakage detection device according to an embodiment of the utility model;

[0020] Figure 2 This is a structural schematic diagram of a fixing base in an electrical fire protection leakage detection device according to an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a fixed cylinder in an electrical fire protection leakage detection device according to an embodiment of the utility model;

[0022] Figure 4It is a partial cross-sectional structural diagram of an electrical fire protection leakage detection device according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of an explosion of a storage box in an electrical fire protection leakage detection device according to an embodiment of the utility model;

[0024] Description of Figure Numbers:

[0025] 110. Body;

[0026] 210, probe joint;

[0027] 310, fixed seat; 311, limiting groove;

[0028] 410, operating lever; 411, limit block;

[0029] 510, fixed cylinder; 520, threaded cylinder; 521, second threaded portion; 530, elastic member; 531, first threaded portion; 540, spring.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the technical solution of the utility model is further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] In the description of the utility model, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the limiting conditions that the utility model can be implemented, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effect that the utility model can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0033] like Figure 1 and Figure 5As shown, an embodiment of the utility model provides an electrical fire protection leakage detection device, comprising a body 110, a probe head 210 located at one end of the body 110, a fixed seat 310 located at the other end of the body 110, and an operating rod 410 slidably arranged in a fixed cylinder 510, wherein one side of the body 110 is respectively provided with a charging interface, a data interface and a power switch, a liquid crystal display is provided on the upper surface of the body 110, and a setting button is provided on one side of the liquid crystal display, and an alarm is provided on the other side of the liquid crystal display, and also includes a locking component, the locking component includes a fixed cylinder 510 and a threaded cylinder 520, one end of the fixed cylinder 510 is arranged on the fixed seat 310 and is sleeved with the operating rod 410, and the other end is provided with an elastic member 530, the threaded cylinder 520 is threadedly connected to the fixed cylinder 510, and the threaded cylinder 520 moves along the axial direction of the fixed cylinder 510 so that the elastic member 530 abuts against the operating rod 410 or is separated from it.

[0034] In the embodiment of the utility model, the threaded barrel 520 is rotated to move along the axial direction of the fixed barrel 510. Since the threaded barrel 520 is threadedly connected to the fixed barrel 510, the rotation of the threaded barrel 520 causes it to move upward relative to the fixed barrel 510, and generates an inward squeezing force on the elastic member 530, so that the elastic member 530 elastically deforms inward to clamp and fix the operating rod 410, thereby limiting the operating rod 410. The adjustment is simple, easy to use, and practical.

[0035] like Figure 1 and Figure 5 As shown, in the embodiment of the utility model, the elastic members 530 are arranged in three groups equidistantly along the circumferential direction of the fixed tube 510, and the thickness of the upper end is greater than the thickness of the lower end, and the cross-section is an inverted trapezoid from top to bottom, so that each elastic member 530 will bend inward when tightened by the threaded tube 520, thereby clamping the fixed operating rod 410, wherein the elastic member 530 can adopt an elastic clip.

[0036] Specifically, the cross-section of the elastic member 530 is fan-shaped from left to right, that is, the inner side surface is arc-shaped. Since the elastic member 530 needs to deform and directly abut against the operating rod 410, the elastic member 530 with an arc-shaped elastic end can increase the contact area with the operating rod 410, thereby ensuring the stability of the fixation of the operating rod 410 and preventing it from shifting.

[0037] Based on the above scheme, in an embodiment of the utility model, an anti-skid pad is bonded to the inner curved surface of the elastic member 530 to prevent hard contact between the elastic member 530 and the operating rod 410, thereby preventing friction damage. At the same time, the friction force when the elastic member 530 contacts the operating rod 410 is increased to prevent slipping and improve stability.

[0038] Based on the above scheme, in an embodiment of the utility model, an operating part is provided on the threaded barrel 520, and a plurality of anti-slip patterns and / or anti-slip grooves are provided on the operating part. With the cooperation of the operating part and the anti-slip patterns or anti-slip grooves, it is convenient to manually rotate the threaded barrel 520 to avoid slipping that affects the operation.

[0039] like Figure 2 and Figure 4-5 As shown, based on the above scheme, in an embodiment of the utility model, a limiting groove 311 is provided on the inner wall of the fixed seat 310, and a limiting block 411 is provided on the outer side of the operating rod 410. The limiting block 411 is slidably connected with the limiting groove 311. The limiting groove 311 is used to align the limiting block 411 so that the operating rod 410 is more stable when it is extended and retracted relative to the fixed seat 310, and at the same time, it is limited to avoid falling off due to excessive stretching.

[0040] like Figure 4 and Figure 5 As shown, based on the above scheme, in an embodiment of the utility model, a spring 540 is provided in the fixing seat 310, one end of the opposite ends of the spring 540 is connected to the operating rod 410, and the other end is connected to the inner bottom wall of the fixing seat 310, so as to facilitate the resetting of the operating rod 410 and reduce the operation.

[0041] like Figure 2-4 As shown, based on the above scheme, in the embodiment of the utility model, the outer side surface of the elastic member 530 is provided with a first threaded portion 531, and the first threaded portion 531 is connected to the thread of the fixed cylinder 510; the inner side surface of the threaded cylinder 520 is provided with a second threaded portion 521, and the second threaded portion 521 is meshed with the fixed cylinder 510 and the first threaded portion 531. By rotating the threaded cylinder 520, the threaded cylinder 520 is driven to move up and down under the meshing action between the first threaded portion 531, the fixed cylinder 510 and the second threaded portion 521, so as to tighten the elastic member 530.

[0042] Based on the above solution, in another embodiment of the present invention, a protective sleeve is provided above the elastic member 530 , and the lower end of the inner side surface of the protective sleeve is bonded to the upper end of the outer side surface of the threaded tube 520 to provide good protection for the elastic member 530 .

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An electrical fire protection leakage detection device, comprising a body (110), a probe head (210) located at one end of the body (110), a fixing seat (310) located at the other end of the body (110), and an operating rod (410) slidably arranged in a fixing tube (510), characterized in that: Also included is a locking assembly, the locking assembly comprising: A fixed cylinder (510), one end of which is disposed on the fixed seat (310) and sleeved with an operating rod (410), and the other end of which is provided with an elastic member (530); The threaded cylinder (520) is threadably connected to the fixed cylinder (510), and the threaded cylinder (520) moves along the axial direction of the fixed cylinder (510) to make the elastic member (530) abut against the operating rod (410) or separate from it.

2. An electrical fire protection leakage detection device as claimed in claim 1, characterized in that: The elastic members (530) are arranged in three groups at equal intervals along the circumferential direction of the fixed cylinder (510), and the thickness of the upper end is greater than the thickness of the lower end, and the cross section is in an inverted trapezoidal shape from top to bottom.

3. An electrical fire protection leakage detection device as claimed in claim 2, characterized in that: An anti-slip pad is bonded to the inner side of the elastic member (530).

4. An electrical fire protection leakage detection device as claimed in claim 1, characterized in that: The threaded cylinder (520) is provided with an operating portion, and the operating portion is provided with a plurality of anti-slip grooves and / or anti-slip grooves.

5. An electrical fire protection leakage detection device as claimed in claim 1, characterized in that: The inner wall of the fixing seat (310) is provided with a limiting groove (311), the outer side surface of the operating rod (410) is provided with a limiting block (411), and the limiting block (411) is slidably connected to the limiting groove (311).

6. An electrical fire protection leakage detection device as claimed in claim 5, characterized in that: A spring (540) is disposed inside the fixing seat (310); one end of the spring (540) is connected to the operating rod (410) and the other end is connected to the inner bottom wall of the fixing seat (310).

7. An electrical fire protection leakage detection device as claimed in claim 1, characterized in that: The outer side surface of the elastic member (530) is provided with a first threaded portion (531), and the first threaded portion (531) is connected to the thread of the fixing tube (510).

8. An electrical fire protection leakage detection device as claimed in claim 7, characterized in that: The inner side surface of the threaded cylinder (520) is provided with a second threaded portion (521), and the second threaded portion (521) is meshed with the fixed cylinder (510) and the first threaded portion (531).

9. An electrical fire protection leakage detection device as claimed in claim 1, characterized in that: A protective sleeve is provided above the elastic member (530), and the lower end of the inner side surface of the protective sleeve is bonded to the upper end of the outer side surface of the threaded barrel (520).

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