Air switch clamp

Abstract

The utility model provides an air switch clamp, which comprises a C-shaped clamp shell matched with the front side of an air switch, a grounding clamp, a cable and a self-locking 3 + 4 core jack male head, two copper columns which are spaced left and right are fixedly embedded in the front side surface of a lower clamping block of the C-shaped clamp shell, a platinum resistor is pressed on a wire skin at an inner end contact of at least one copper column, and the grounding clamp is connected with the cable. An upper clamping block of the C-shaped clamp shell is provided with a travel switch, a contact of the travel switch protrudes out of the lower side of the upper clamping block of the C-shaped clamp shell, and the self-locking 3 + 4 core jack male head is connected with the right copper column, the left copper column, the grounding clamp, a common point of the travel switch, a normally open point of the travel switch and the two ends of the platinum resistor through cables. According to the utility model, the single-phase electricity of a user is accessed to the uninterruptible meter replacement auxiliary device, the air switch is switched off, the uninterruptible electric energy meter can be replaced, the operation is simple, safe, reliable, convenient and fast, and the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment, and specifically, to an air switch clamp. Background Art

[0002] In recent years, with the continuous improvement of China's economic development level, the electricity consumption of various domestic industries and residents has shown a steady growth trend. People have higher and higher demands for electricity consumption, higher and higher requirements for electricity consumption experience, and the requirements for power supply reliability have also increased with the continuous improvement of living quality. For the replacement work of electric energy metering devices, it is inevitable to cause power outages in the back-end user lines. The complex environment at the construction site and the number of work items will directly affect the power outage duration of on-site users. Long-term power outage operations will bring a bad electricity consumption experience to users. At the same time, the process of disassembling and replacing the electric energy meter is relatively troublesome, and there is a risk of incorrect wiring or missed wiring during the connection of different phase lines. Therefore, the power-off meter replacement auxiliary device has emerged as the times require. When using the power-off meter replacement auxiliary device, it is necessary to connect the user's single-phase electricity to the power-off meter replacement auxiliary device. At present, how to safely, simply and quickly connect the user's single-phase electricity to the power-off meter replacement auxiliary device is a technical hot spot.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, and thus provide an air switch clamp. The utility model realizes connecting the user's single-phase electricity to the power-off meter replacement auxiliary device. By disconnecting the air switch, the power-off replacement of the electric energy meter can be carried out. The operation is simple, safe and reliable, convenient and fast, and has high efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: an air switch clamp, including a C-shaped clamp housing adapted to the front side of the air switch, a grounding clip, a cable and a self-locking 3+4 core socket male head. Two copper columns spaced left and right are fixedly embedded in the front side of the lower clamp block of the C-shaped clamp housing. At least one platinum resistor is pressed on the wire skin at the inner end contact of the copper column. A travel switch is provided on the upper clamp block of the C-shaped clamp housing. The contact of the travel switch protrudes from the lower side of the upper clamp block of the C-shaped clamp housing. The self-locking 3+4 core socket male head is connected to the right copper column, the left copper column, the grounding clip, the common point of the travel switch, the normally open point of the travel switch and both ends of the platinum resistor through the cable respectively.

[0006] Based on the above, the cable is mainly composed of 3 pieces of 14AWG rubber wires, 4 pieces of 22AWG rubber wires and a PVC sheath. The 3 pieces of 14AWG rubber wires and 4 pieces of 22AWG rubber wires are placed in the PVC sheath, and the inner wall of the PVC sheath has aluminum foil.

[0007] Based on the above, one end of each of the three 14AWG rubber wires is respectively connected to three of the welding needles of the male head of the self-locking 3+4 core jack, and the other ends of the three 14AWG rubber wires are respectively and correspondingly connected to two copper posts and a grounding clip;

[0008] One end of each of the four 22AWG rubber wires is respectively connected to four of the welding needles of the male head of the self-locking 3+4 core jack, and the other ends of the four 22AWG rubber wires are respectively and correspondingly connected to the common point of the travel switch, the normally open point of the travel switch, and both ends of the platinum resistor.

[0009] Based on the above, a waterproof joint sleeved on the PVC sheath is installed at the rear side of the C-type fixture housing.

[0010] Based on the above, the grounding clip is a fully enclosed alligator clip, and a 14AWG rubber wire connected to the grounding clip is led out from the C-type fixture housing.

[0011] The utility model has substantial features and progress compared with the prior art. Specifically, the C-type fixture housing of the utility model is adapted to the front side of the air switch. During use, the C-type fixture housing is directly clamped on the air switch, that is, the upper clamp block and the lower clamp block of the C-type fixture housing are clamped on the front end of the air switch, so that the right copper post and the left copper post are respectively inserted into the screw mounting holes of the neutral wire and live wire terminal blocks at the lower part of the front side of the air switch. The right copper post contacts the neutral wire terminal block of the air switch outlet, and the left copper post contacts the live wire terminal block of the air switch outlet. At the same time, the grounding clip is grounded. After the C-type fixture housing is clamped to the air switch and in place, the contact (ball) of the travel switch is squeezed up to close the normally open point of the travel switch. Then, the male head of the self-locking 3+4 core jack is correspondingly plugged into the matching female head on the power-off meter replacement auxiliary device. Furthermore, the neutral wire and live wire at the outlet of the air switch are respectively connected to the power-off meter replacement auxiliary device, realizing the connection of the user's single-phase electricity to the power-off meter replacement auxiliary device. Then, the air switch is disconnected, and the electricity meter can be replaced without power interruption. The operation is simple, safe and reliable, convenient and fast, and has high efficiency.

[0012] Among them, when the normally open point of the travel switch is closed, the travel switch is connected to the detection circuit board in the power-off meter replacement auxiliary device through a cable and the male head of the self-locking 3+4 core jack. The detection circuit board can collect the change of the switching quantity of the travel switch, so as to determine whether the fixture is firmly installed. If the fixture falls off, the travel switch will be disconnected, and the detection circuit board controls the alarm device in the power-off meter replacement auxiliary device to give an alarm. The detection of the position state of this travel switch is a conventional technology in this field.

[0013] Meanwhile, both ends of the platinum resistor are connected to the detection circuit board in the power-off meter replacement auxiliary device through a cable and a self-locking 3+4-core jack male head. By detecting the resistance value of the platinum resistor, the temperature at the inner end contact of the copper column can be detected, and the cable temperature during the operation of the power-off meter replacement auxiliary device can be determined. When the temperature exceeds the temperature rise alarm threshold, the alarm device in the power-off meter replacement auxiliary device gives an alarm reminder to protect the operators. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model.

[0015] Figure 2 is Figure 1 the front view of the self-locking 3+4-core jack male head in

[0016] Figure 3 is Figure 1 the side view B of the C-type fixture housing in

[0017] In the figure: 1. C-type fixture housing; 2. grounding clip; 3. cable; 4. self-locking 3+4-core jack male head; 5. right copper column; 6. left copper column; 7. platinum resistor; 8. travel switch; 9. waterproof joint; 10. elastic splint; 11. top pressure screw; 12. handwheel; 13. through hole. Detailed Embodiments

[0018] The technical solutions of the present utility model will be further described in detail below through specific embodiments.

[0019] Embodiment 1

[0020] As Figure 1 , Figure 2 and Figure 3 shown, the air switch fixture includes a C-type fixture housing 1 adapted to the front side of the air switch, a grounding clip 2, a cable 3 and a self-locking 3+4-core jack male head 4. A right copper column 5 and a left copper column 6 are fixedly embedded on the front side of the lower clamp block of the C-type fixture housing 1. A platinum resistor 7 is pressed on the wire skin at the inner end contact of the left copper column 6. A travel switch 8 is provided on the upper clamp block of the C-type fixture housing 1, and the contact of the travel switch 8 protrudes from the lower side of the upper clamp block of the C-type fixture housing 1. The self-locking 3+4-core jack male head 4 is connected to the right copper column 5, the left copper column 6, the grounding clip 2, the common point of the travel switch 8, the normally open point of the travel switch 8 and both ends of the platinum resistor 7 through the cable 3.

[0021] In other embodiments, the platinum resistor 7 can also be pressed on the wire skin at the inner end contact of the right copper column 5, or a platinum resistor 7 can be pressed on the wire skins at the inner end contacts of both the right copper column 5 and the left copper column 6.

[0022] The cable 3 in this embodiment mainly consists of 3 pieces of 14AWG rubber wires, 4 pieces of 22AWG rubber wires and a PVC sheath. The 3 pieces of 14AWG rubber wires and 4 pieces of 22AWG rubber wires are placed inside the PVC sheath, and the inner wall of the PVC sheath has aluminum foil.

[0023] One end of each of the 3 pieces of 14AWG rubber wires is respectively connected to the welding needles of 3 cores among the self-locking 3+4 core jack male head 4. The other ends of the 3 pieces of 14AWG rubber wires are respectively connected to the right copper post 5, the left copper post 6 and the grounding clip 2 in one-to-one correspondence;

[0024] One end of each of the 4 pieces of 22AWG rubber wires is respectively connected to the welding needles of 4 cores among the self-locking 3+4 core jack male head 4. The other ends of 2 of the 4 pieces of 22AWG rubber wires are respectively connected to the common point of the travel switch 8 and the normally open point of the travel switch 8, and the other ends of the remaining 2 pieces of 22AWG rubber wires are respectively connected to both ends of the platinum resistor 7.

[0025] A waterproof joint 9 sleeved on the PVC sheath is installed at the rear side of the C-type fixture housing 1.

[0026] When this embodiment is in use, the upper clamp block and the lower clamp block of the C-type fixture housing 1 are directly clamped on the air switch, that is, the upper clamp block and the lower clamp block of the C-type fixture housing 1 are clamped on the front end of the air switch, so that the right copper post 5 and the left copper post 6 are respectively inserted into the screw mounting holes of the neutral wire and live wire terminal blocks at the lower front side of the air switch. The right copper post 5 contacts the neutral wire terminal block at the outgoing line end of the air switch, and the left copper post 6 contacts the live wire terminal block at the outgoing line end of the air switch. At the same time, the grounding clip 2 is grounded. After the C-type fixture housing 1 is clamped on the air switch and in place, the contact (ball) of the travel switch 8 is squeezed up to make the normally open point of the travel switch 8 closed. Then the self-locking 3+4 core jack male head 4 is correspondingly plugged into the matching female head on the live meter replacement auxiliary device. Furthermore, the neutral wire and the live wire at the outgoing line end of the air switch are respectively connected to the live meter replacement auxiliary device, realizing the connection of the user's single-phase electricity to the live meter replacement auxiliary device. Then, the air switch is disconnected, and the electricity meter can be replaced without power interruption. The operation is simple, safe and reliable, convenient and fast, and has high efficiency.

[0027] Among them, when the normally open point of the travel switch 8 is closed, the travel switch 8 is connected to the detection circuit board in the live meter replacement auxiliary device through the cable 3 and the self-locking 3+4 core jack male head 4. The detection circuit board collects the change of the switching value of the travel switch 8 to determine whether the fixture is firmly installed;

[0028] Meanwhile, both ends of the platinum resistance 7 are connected to the detection circuit board in the power-off meter replacement auxiliary device through the cable 3 and the self-locking 3 + 4 core socket male head 4. By detecting the resistance value of the platinum resistance 7, the temperature at the inner end contact of the copper column can be detected, and the cable temperature during the operation of the power-off meter replacement auxiliary device can be determined. When the temperature exceeds the temperature rise alarm threshold, the alarm device in the power-off meter replacement auxiliary device gives an alarm reminder and protects the operators.

[0029] The grounding clip 2, the self-locking 3 + 4 core socket male head 4, the travel switch 8, the platinum resistance 7, the power-off meter replacement auxiliary device, the alarm device, and the detection circuit board are all conventional technologies, and their specific structures and working principles will not be elaborated here. The detection here belongs to the conventional technology in this field, making use of the inherent application functions of the travel switch 8 and the platinum resistance 7, and does not involve new computer programs.

[0030] In order to make the C-type fixture housing 1 fix more firmly on the air switch, an elastic clamping plate 10 can be fixedly installed on the lower side of the upper clamping block of the C-type fixture housing 1, and an inclined downward pressing screw 11 can be threadedly installed on the upper clamping block of the C-type fixture housing 1. The lower end of the pressing screw 11 abuts against the elastic clamping plate 10, and a handwheel 12 is installed at the upper end of the pressing screw 11.

[0031] Meanwhile, to facilitate the operation of the manual switch of the air switch, a through hole 13 corresponding to the front end face of the air switch can be opened in the middle of the vertical block of the C-type fixture housing 1. In this way, the hand can directly pull the manual switch of the air switch through the through hole 13 to disconnect or close the air switch.

[0032] Embodiment 2

[0033] Different from Embodiment 1, the grounding clip 2 in this embodiment is a fully enclosed alligator clip, and a 14AWG rubber wire connected to the grounding clip 2 leads out from the C-type fixture housing 1. The grounding clip 2 is not shown in the figure.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. Air switch fixture, characterized by: It includes a C-type clamp shell, a grounding clamp, a cable and a self-locking 3+4-core male jack that is compatible with the front side of the air switch. Two copper pillars spaced apart from each other are fixedly embedded on the front side of the lower clamp block of the C-type clamp shell. A platinum resistor is pressed on the wire skin at the inner end contact of at least one copper pillar. The upper clamp block of the C-type clamp shell is provided with a travel switch. The contact of the travel switch protrudes from the lower side of the upper clamp block of the C-type clamp shell. The self-locking 3+4-core male jack is respectively connected to the two copper pillars, the grounding clamp, the common point of the travel switch, the normally open point of the travel switch and the two ends of the platinum resistor through a cable.

2. The air switch fixture according to claim 1, characterized in that: The cable is mainly composed of 3 14AWG rubber wires, 4 22AWG rubber wires and a PVC sheath. The 3 14AWG rubber wires and 4 22AWG rubber wires are placed in the PVC sheath, and the inner wall of the PVC sheath has aluminum foil.

3. The air switch fixture according to claim 2, characterized in that: One end of the three 14AWG rubber wires are connected to the three-core welding needles of the self-locking 3+4-core male jack, and the other ends of the three 14AWG rubber wires are connected to the two copper pillars and the grounding clip one by one; One end of the four 22AWG rubber wires are connected to the four-core welding needles of the self-locking 3+4-core male jack, and the other ends of the four 22AWG rubber wires are connected to the common point of the travel switch, the normally open point of the travel switch and the two ends of the platinum resistor one by one.

4. The air switch fixture according to any one of claims 1 to 3, characterized in that: A waterproof connector sleeved on a PVC sheath is installed on the rear side of the C-type clamp housing.

5. The air switch fixture according to claim 4, characterized in that: The grounding clip is a fully enclosed alligator clip, and a 14AWG rubber wire connected to the grounding clip is led out from the C-type clamp housing.

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