Anti-tripping terminal wire connecting device and use method

Abstract

The invention relates to the related technical field of electronic engineering, in particular to an anti-tripping terminal wire connecting device and a using method thereof.The anti-tripping terminal wire connecting device comprises a first terminal wire, the inner side surface of the first terminal wire is fixedly connected with a wire core, and the surface of one side of the wire core is provided with a connecting mechanism. Through the arrangement of the connecting mechanism, in use, compared with traditional clamping connection which only depends on a simple buckle structure, the cable core can be clamped more reliably, unstable connection caused by loosening of the cable core is reduced, and in an industrial equipment environment with large vibration, the situation of poor connection caused by displacement of the cable core can be effectively prevented even if the cable core is vibrated for a long time.

Description

Technical Field

[0001] This invention relates to the field of electronic engineering technology, and in particular to an anti-disengagement terminal wire connection device and its usage method. Background Technology

[0002] In the field of electronic engineering, with the development of integrated, miniaturized, and multifunctional electronic devices, the connection density between various electronic components is constantly increasing, and the reliability of the connection faces severe challenges. As a key component for signal and power transmission within electronic devices and between different electronic devices, the stability of the terminal wire connection directly affects the performance of the entire electronic system. Once the terminal wire is disconnected, it may lead to signal transmission interruption, data loss, equipment failure, or even safety accidents. In communication base station equipment, if the terminal wire connecting the antenna and the transceiver is disconnected, it will interrupt the communication signal and affect communication services over a large area. In medical electronic equipment, such as the unstable terminal wire connection between surgical instruments and monitoring systems, it may bring great risks to the operation. Therefore, there is a particular need for an anti-disconnection terminal wire connection device and its usage method.

[0003] However, due to design limitations, existing terminal wire connection devices often use snap-fit ​​connections. Such connections may deform or even come off when subjected to significant external forces, such as when the wire is accidentally tripped during equipment movement, or when the wire is subjected to additional tension due to frequent plugging and unplugging of other peripheral devices. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-disengagement terminal wire connection device and a method of use to solve the above-mentioned problems and overcome the defects of the prior art, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides an anti-disengagement terminal wire connection device, including a first terminal wire, a wire core fixedly connected to the inner surface of the first terminal wire, a connecting mechanism provided on one side surface of the wire core, an interface block provided on one side surface of the connecting mechanism, a locking piece fixedly connected to one side surface of the interface block, a connecting block fixedly connected to one side surface of the interface block, and a second terminal wire fixedly connected to one side surface of the connecting block.

[0008] The connecting mechanism includes a copper sheet clamp, a connector, an insulating sheath, a fixing block, a connecting plate, a lower wrapping shell, an upper wrapping shell, a rubber pad, a locking shell, a spring, a sliding strip, a pressing block, and a button. A copper sheet clamp is fixedly connected to one side surface of the wire core. A connector is fixedly connected to one side surface of the copper sheet clamp. An insulating sheath is fixedly connected to the outer surface of the connector. A fixing block is fixedly connected to the outer surface of the insulating sheath. A connecting plate is fixedly connected to one side surface of the fixing block. A lower wrapping shell is fixedly connected to one side surface of the fixing block. An upper wrapping shell is fixedly connected to the upper surface of the lower wrapping shell. A rubber pad is fixedly connected to one side surface of the upper wrapping shell. A locking shell is fixedly connected to one side surface of the lower wrapping shell. A spring is fixedly connected to one side surface of the locking shell. A sliding strip is fixedly connected to the upper surface of the spring. A pressing block is fixedly connected to one side surface of the sliding strip. A button is fixedly connected to the upper surface of the sliding strip.

[0009] Preferably, the first terminal wire is provided with three sets at one end of the connecting mechanism, the outer shell of the first terminal wire is made of polyvinyl chloride, and the core material is made of brass.

[0010] Preferably, two sets of copper sheet clamps are provided on one side surface of the connector, symmetrically arranged above and below the vertical line, and the insulating skin fixes the copper sheet clamps and the connector.

[0011] Preferably, the first terminal wire is fixedly connected to two sets of copper sheet clamps by bolts, and the insulating sheath wraps around the copper sheet clamps and the connector.

[0012] Preferably, the connecting plates are provided in two sets on the upper and lower surfaces of the fixing blocks, and the fixing blocks are provided in three sets in parallel between the two sets of connecting plates.

[0013] Preferably, the upper casing is fixedly connected to the lower casing by bolts, and both the lower and upper casings have rubber pads on their inner surfaces, with the rubber pads having wavy textures on their surfaces.

[0014] Preferably, the upper surface of the locking shell is provided with three sets of springs, and the pressing blocks are symmetrically arranged with two sets on the two ends of the sliding strip.

[0015] Preferably, the button is fixedly connected to the pressing block via a slider, and the pressing block can slide up and down through the cooperation of the button, slider, and pressing block.

[0016] Preferably, one side surface of the button has multiple sets of anti-slip textures, and the upper and lower surfaces of the interface block are each provided with two sets of engaging tabs, the positions of which correspond to the positions of the pressing block.

[0017] An anti-disengagement terminal wire connection device further includes the following steps:

[0018] Step 1: Bend the core of the terminal wire to be connected into a hook shape, place it between the two copper plates, and then tighten the screws on the top of the two copper plates to fix the core of the terminal wire.

[0019] Step 2: Place the insulating sheath and fixing block on the outside of the connector, fix it with the connecting plate, and finally merge the lower and upper sheaths and connect them with bolts. The rubber pads on the inside of the lower and upper sheaths serve to fix the first terminal wire.

[0020] Step 3: Align the interface block with the inside of the locking shell and push it to engage with the connector. Once you hear a "click" sound from the locking plate, the connection is complete.

[0021] Step 4: When it is necessary to remove it, hold the connector block with one hand, press the button with the other hand and pull out the connector block to disconnect the first terminal wire.

[0022] The beneficial effects are:

[0023] By using the above-mentioned device, which combines copper plate clamps with bolts to fix the wire core, compared with the traditional snap-fit ​​connection that relies on a simple snap-fit ​​structure, the wire core can be clamped more reliably, reducing connection instability caused by wire core loosening. In industrial equipment environments with large vibrations, even if subjected to long-term vibration, it can effectively prevent wire core displacement and poor connection. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a side view of the external structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the inner structure of the upper and lower outer shells.

[0028] Figure 4 This is a schematic diagram of the interlocking structure of the copper sheet clamp, connector, and insulating sheath of the present invention;

[0029] Figure 5 This is a schematic diagram of the interface block and the engaging shell of the present invention.

[0030] Figure 6 This is a schematic diagram of the combined structure of the button, pressing block, and sliding bar of the present invention;

[0031] Figure 7 This is a schematic diagram of the mating structure of the interface block, the snap-fit ​​piece, and the connecting block of the present invention;

[0032] Figure 8 This is a schematic diagram of the device being separated according to the present invention.

[0033] In the diagram: 1. First terminal wire; 2. Wire core; 3. Connecting mechanism; 301. Copper sheet clamp; 302. Connector; 303. Insulating sheath; 304. Fixing block; 305. Connecting plate; 306. Lower enclosure shell; 307. Upper enclosure shell; 308. Rubber pad; 309. Locking shell; 310. Spring; 311. Sliding bar; 312. Pressing block; 313. Button; 4. Interface block; 5. Locking piece; 6. Connecting block; 7. Second terminal wire. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0035] Example 1.

[0036] Please see Figure 1-8 A terminal wire connection device for preventing tripping includes a first terminal wire 1, a wire core 2 fixedly connected to the inner surface of the first terminal wire 1, a connecting mechanism 3 provided on one side surface of the wire core 2, an interface block 4 provided on one side surface of the connecting mechanism 3, a locking piece 5 fixedly connected to one side surface of the interface block 4, a connecting block 6 fixedly connected to one side surface of the interface block 4, and a second terminal wire 7 fixedly connected to one side surface of the connecting block 6.

[0037] The connecting mechanism 3 includes a copper sheet clamp 301, a connector 302, an insulating sheath 303, a fixing block 304, a connecting plate 305, a lower wrapping shell 306, an upper wrapping shell 307, a rubber pad 308, a locking shell 309, a spring 310, a sliding strip 311, a pressing block 312, and a button 313. A copper sheet clamp 301 is fixedly connected to one side of the wire core 2. A connector 302 is fixedly connected to one side of the copper sheet clamp 301. An insulating sheath 303 is fixedly connected to the outer surface of the connector 302. A fixing block 304 is fixedly connected to the outer surface of the insulating sheath 303. A connecting plate 305 is fixedly connected to one side of the fixing block 304. A lower wrapping shell 306 is fixedly connected to one side of the fixing block 304. The upper surface of the lower wrapping shell 306... An upper enclosure shell 307 is fixedly connected to the surface of the upper enclosure shell 307. A rubber pad 308 is fixedly connected to one side of the upper enclosure shell 307. A locking shell 309 is fixedly connected to one side of the lower enclosure shell 306. A spring 310 is fixedly connected to one side of the locking shell 309. A sliding strip 311 is fixedly connected to the upper surface of the spring 310. A pressing block 312 is fixedly connected to one side of the sliding strip 311. A button 313 is fixedly connected to the upper surface of the sliding strip 311. The arrangement of the copper sheet clamp 301, connector 302, insulating skin 303, fixing block 304, connecting plate 305, lower enclosure shell 306, upper enclosure shell 307, rubber pad 308, locking shell 309, spring 310, sliding strip 311, pressing block 312, and button 313 completes the assembly. In use, the wire core 2 of the terminal wire to be connected is bent into a hook shape and placed between two sets of copper sheet clamps 301 arranged symmetrically above and below the central axis. Then, the wire core 2 is fixed by tightening bolts. The copper sheet clamps 301 act as an intermediate medium to effectively conduct the electrical energy or signal of the wire core 2 to the connector 302. During this process, the insulating sheath 303 is wrapped around the outside of the connector 302 and the copper sheet clamps 301. At the same time, the fixing block 304 and the connecting plate 305 are used to fix the insulating sheath 303, so that the insulating sheath 303 can tightly wrap around the connector 302 and the copper sheet clamps 301. The lower wrapping shell 306 and the upper wrapping shell 307 are connected by bolts to form a closed space to wrap the first terminal wire 1. The surface of the rubber pad 308 The wavy texture increases the friction between the interface block 4 and the first terminal wire 1, improving the stability of the fixation and protecting the internal connection structure from damage. When the interface block 4 is fully pushed into the locking housing 309, causing the locking piece 5 to reach the predetermined position, the spring force of the spring 310 will lock the locking piece 5 in place, at which point a "click" sound will be heard, indicating that the interface block 4 and the connector 302 have successfully engaged. Under normal circumstances, the spring force of the spring 310 keeps the locking piece 5 in a fixed position, thus ensuring that the interface block 4 will not easily fall off, achieving the anti-disengagement function. When it is necessary to disconnect the connection, press the button 13. The button 13 drives the pressing block 312 to slide downward through the sliding bar 311. The downward sliding of the pressing block 312 will squeeze the locking piece 5, releasing it from the locked position.At this point, connecting block 6 can be removed to disconnect the first terminal wire 1. The second terminal wire 7 is fixedly connected to one side of connecting block 6. This operation completes the connection and disconnection process between the two terminal wires. Compared to traditional snap-fit ​​connections that rely solely on a simple snap-fit ​​structure, this design more reliably clamps the wire core, reducing connection instability caused by wire core loosening. In industrial equipment environments with significant vibration, even with prolonged vibration, it effectively prevents wire core displacement and connection failure.

[0038] Furthermore, the first terminal wire 1 has three sets at one end of the connecting mechanism 3. The outer shell of the first terminal wire 1 is made of polyvinyl chloride (PVC), and the core 2 is made of brass. The PVC outer shell of the first terminal wire 1 provides excellent insulation, effectively preventing current leakage and avoiding safety accidents caused by leakage, especially in humid or dusty environments, ensuring user safety and normal equipment operation. The brass core 2 ensures low energy or signal loss during transmission, guaranteeing transmission efficiency and quality.

[0039] Furthermore, two sets of copper sheet clamps 301 are provided on one side surface of connector 302, symmetrically arranged above and below the central axis. Insulating skin 303 fixes the copper sheet clamps 301 and connector 302 together. With the setting of insulating skin 303, during use, the insulating skin 303 fixes the copper sheet clamps 301 and connector 302 together, forming a stable overall structure. This connection method enhances the mechanical connection strength between the components and reduces the problem of poor contact caused by loose components during use.

[0040] Furthermore, the first terminal wire 1 is fixedly connected to two sets of copper sheet clamps 301 by bolts. The insulating skin 303 wraps around the copper sheet clamps 301 and the connector 302. With the copper sheet clamps 301, connectors 302 and insulating skin 303, in use, the insulating skin 303 wraps around the copper sheet clamps 301 and connectors 302, forming an insulating protective layer, effectively preventing current leakage, avoiding safety accidents caused by leakage, and ensuring the safety of users and the normal operation of equipment.

[0041] Furthermore, the connecting plates 305 are provided in two sets on the upper and lower surfaces of the fixing blocks 304, and the fixing blocks 304 are provided in three sets in parallel between the two sets of connecting plates 305. Through the arrangement of the connecting plates 305, this structure distributed vertically can reinforce the fixing blocks 304 from two directions during use, making it less likely for the fixing blocks 304 to shift or deform when subjected to external forces.

[0042] Furthermore, the upper enclosure 307 is fixedly connected to the lower enclosure 306 by bolts, and rubber pads 308 are provided on the inner surfaces of both the lower enclosure 306 and the upper enclosure 307. The surface of the rubber pads 308 is provided with a wavy texture. Through the setting of the rubber pads 308, during use, the rubber pads 308 on the inner surfaces of the lower enclosure 306 and the upper enclosure 307 can play a good role in fixing the first terminal wire 1. The rubber material itself has a certain elasticity and friction, which can tightly adhere to the surface of the terminal wire and prevent it from shaking inside the housing. This is crucial for maintaining stable contact between the terminal wire and the connection mechanism and ensuring normal transmission of signals and electrical energy.

[0043] Furthermore, three sets of springs 310 are provided on the upper surface of the locking housing 309, and two sets of pressing blocks 312 are symmetrically arranged on both ends of the sliding strip 311. Through the arrangement of springs 310 and pressing blocks 312, when the button 313 is pressed to activate the pressing block 312, the force is balanced, avoiding problems such as component tilting or jamming caused by unilateral force, making the pressing operation smoother and further improving the reliability of connection and disconnection operations.

[0044] Furthermore, button 313 is fixedly connected to pressing block 312 via sliding bar 311, and pressing block 312 can slide up and down through the cooperation of button 313, sliding bar 311 and pressing block 312. Through the setting of sliding bar 311, pressing block 312 and button 313, when in use, the user only needs to press button 313 and directly control the up and down sliding of pressing block 312 through sliding bar 311, thereby realizing the squeezing operation of card plate 5, so that interface block 4 can be pulled out smoothly. This intuitive operation method does not require complicated actions or additional tools, and users can easily master it, improving the convenience of use.

[0045] Furthermore, multiple anti-slip textures are formed on one side of the button 313, and two sets of locking tabs 5 are set on the upper and lower surfaces of the interface block 4. The positions of the locking tabs 5 correspond to the positions of the pressing block 312. Through the design of the button 313, the multiple anti-slip textures can effectively increase the friction between the finger and the button 313 during use. When the user presses the button 313, whether in a dry or humid environment, the user can better grip the button 313 and prevent the finger from slipping. Especially when the hands are oily or sweaty, the anti-slip textures can ensure that the user can accurately and stably press the button 313 and smoothly complete the pull-out operation of the interface block 4, improving the convenience of use and the accuracy of operation.

[0046] Example 2

[0047] A method for using an anti-disengagement terminal wire connection device, employing the anti-disengagement terminal wire connection device of Embodiment 1, further includes the following steps:

[0048] Step 1: Bend the terminal wire core 2 to be connected into a hook shape and place it between the two copper plate clamps 301. Then, tighten the screws on the two copper plate clamps 301 to fix the terminal wire core 2.

[0049] Step 2: Place the insulating skin 303 and the fixing block 304 on the outside of the connector 302, and fix it with the connecting plate 305. Finally, merge the lower wrapping shell 306 and the upper wrapping shell 307 and connect them with bolts. The rubber pads 308 on the inner side of the lower wrapping shell 306 and the upper wrapping shell 307 play a role in fixing the first terminal wire 1.

[0050] Step 3: Align the interface block 4 with the inside of the locking shell 309 and push it to make the interface block 4 engage with the connector 302. After hearing a "click" sound from the locking piece 5, the fixing is complete.

[0051] Step 4: When it is necessary to remove it, hold the connector block 6 with one hand, press button 313 with the other hand and pull out the connector block 6 to disconnect the first terminal wire 1.

[0052] Working principle: The core 2 of the terminal wire to be connected is bent into a hook shape and placed between two sets of copper plates 301 arranged symmetrically on the vertical axis. The core 2 is then fixed by tightening bolts. The copper plates 301 act as an intermediate medium, effectively transmitting the electrical energy or signal of the core 2 to the connector 302. During this process, the insulating skin 303 wraps around the outside of the connector 302 and the copper plates 301. At the same time, the fixing block 304 and the connecting plate 305 are used to fix the insulating skin 303, so that the insulating skin 303 can tightly wrap around the connector 302 and the copper plates 301. The lower enclosure shell 306 and the upper enclosure shell 307 are connected by bolts to form a closed space, which encloses the first terminal wire 1. The wavy texture on the surface of the rubber pad 308 increases the friction between it and the first terminal wire 1, improves the stability of the fixation, and protects the internal connection structure from damage. When the interface block 4 is fully pushed into the locking shell 309, so that the locking piece 5 reaches the predetermined position, the spring 310 springs back. The force will lock the locking piece 5 in place, at which point a "click" sound will be heard, indicating that the interface block 4 and the connector 302 have successfully engaged. Under normal circumstances, the elastic force of the spring 310 keeps the locking piece 5 in a fixed position, thus ensuring that the interface block 4 will not easily fall off, achieving the anti-disengagement function. When it is necessary to disconnect the connection, press the button 13. The button 13 drives the pressing block 312 to slide downward through the sliding bar 311. The downward sliding of the pressing block 312 will squeeze the locking piece 5, causing it to release from the locked position. At this time, the connector block 6 can be pulled out, realizing the disconnection of the first terminal wire 1. The second terminal wire 7 is fixedly connected to one side surface of the connector block 6. Through this operation, the complete process of connecting and disconnecting the two terminal wires is realized. Compared with the traditional locking connection that only relies on a simple buckle structure, this setting can more reliably clamp the wire core, reduce the connection instability caused by the loose wire core, and effectively prevent the wire core displacement and poor connection in industrial equipment environments with large vibrations, even if subjected to long-term vibration.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal wire connection device for preventing tripping, comprising a first terminal wire (1), characterized in that: A wire core (2) is fixedly connected to the inner surface of the first terminal wire (1). A connecting mechanism (3) is provided on one side surface of the wire core (2). An interface block (4) is provided on one side surface of the connecting mechanism (3). A snap-fit ​​piece (5) is fixedly connected to one side surface of the interface block (4). A connecting block (6) is fixedly connected to one side surface of the interface block (4). A second terminal wire (7) is fixedly connected to one side surface of the connecting block (6). The connecting mechanism (3) includes a copper sheet clamp (301), a connector (302), an insulating sheath (303), a fixing block (304), a connecting plate (305), a lower wrapping shell (306), an upper wrapping shell (307), a rubber pad (308), a locking shell (309), a spring (310), a sliding bar (311), a pressing block (312), and a button (313). A copper sheet clamp (301) is fixedly connected to one side of the wire core (2). A connector (302) is fixedly connected to one side of the copper sheet clamp (301). An insulating sheath (303) is fixedly connected to the outer surface of the connector (302). A fixing block (304) is fixedly connected to the outer surface of the insulating sheath (303). A connecting plate (305) is fixedly connected to one side surface of the fixing block (304), a lower wrapping shell (306) is fixedly connected to one side surface of the fixing block (304), an upper wrapping shell (307) is fixedly connected to the upper surface of the lower wrapping shell (306), a rubber pad (308) is fixedly connected to one side surface of the upper wrapping shell (307), a locking shell (309) is fixedly connected to one side surface of the lower wrapping shell (306), a spring (310) is fixedly connected to one side surface of the locking shell (309), a sliding strip (311) is fixedly connected to the upper surface of the spring (310), a pressing block (312) is fixedly connected to one side surface of the sliding strip (311), and a button (313) is fixedly connected to the upper surface of the sliding strip (311).

2. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The first terminal wire (1) has three sets at one end of the connecting mechanism (3). The outer shell of the first terminal wire (1) is made of polyvinyl chloride, and the core (2) is made of brass.

3. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The copper sheet clamp (301) has two sets on one side surface of the connector (302), which are symmetrically arranged above and below the central vertical line. The insulating skin (303) fixes the copper sheet clamp (301) and the connector (302) together.

4. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The first terminal wire (1) is fixedly connected to two sets of copper sheet clamps (301) by bolts, and the insulating skin (303) wraps the copper sheet clamps (301) and the connector (302).

5. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The connecting plate (305) is provided in two sets on the upper and lower surfaces of the fixing block (304), and the fixing block (304) is provided in three sets in parallel between the two sets of connecting plates (305).

6. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The upper enclosure (307) is fixedly connected to the lower enclosure (306) by bolts, and rubber pads (308) are provided on the inner surfaces of both the lower enclosure (306) and the upper enclosure (307), and the surface of the rubber pads (308) is provided with wavy texture.

7. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The upper surface of the locking shell (309) is provided with three sets of springs (310), and the pressing block (312) is symmetrically provided with two sets of springs on both ends of the sliding bar (311).

8. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The button (313) is fixedly connected to the pressing block (312) via the sliding bar (311), and the pressing block (312) can slide up and down through the cooperation of the button (313), the sliding bar (311) and the pressing block (312).

9. The anti-disengagement terminal wire connection device according to claim 1, characterized in that: The button (313) has multiple anti-slip textures on one side surface, and the interface block (4) has two sets of locking pieces (5) on its upper and lower surfaces, with the locking pieces (5) located at positions corresponding to the pressing block (312).

10. A method of using an anti-disengagement terminal wire connection device, characterized in that: The anti-disengagement terminal wire connection device according to any one of claims 1-9 further includes the following steps: Step 1: Bend the terminal wire core (2) to be connected into a hook shape and place it between the two copper plate clamps (301). Then, tighten the screws on the two copper plate clamps (301) to fix the terminal wire core (2). Step 2: Put the insulating sheath (303) and fixing block (304) on the outside of the connector (302), fix it with the connecting plate (305), and finally merge the lower wrapping shell (306) and the upper wrapping shell (307) and connect them with bolts. The rubber pads (308) on the inside of the lower wrapping shell (306) and the upper wrapping shell (307) play a role in fixing the first terminal wire (1). Step 3: Align the interface block (4) with the inside of the locking shell (309) and push it to make the interface block (4) engage with the connector (302). After hearing a "click" sound from the locking piece (5), the fixing is complete. Step 4: When it is necessary to remove it, hold the connector block (6) with one hand, press the button (313) with the other hand and pull out the connector block (6) to disconnect the first terminal wire (1).

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