Probe for four-wire test

Abstract

The utility model discloses a probe for four-wire test, which relates to the technical field of test probes and comprises a test probe main body, the right end of the test probe main body is fixedly connected with a socket, a clamping rod is inserted into the outer wall of the socket in a sliding manner, a spring is sleeved on the outer wall of the clamping rod, and a plug main body is inserted into the socket. According to the utility model, the plug main body is aligned with the jack for insertion, the plug main body extrudes the clamping rod and the spring and then rotates rightwards to clamp the clamping block into the clamping groove to complete primary fixation, and then the spring drives the clamping rod to rebound and reset, so that the clamping rod is inserted into the clamping hole to realize secondary fixation of the plug main body; the plug body can be removed only by reversely rotating the plug body, then pulling the pull ring and pulling out the plug body, the fixing efficiency is high, the fixing effect is good, and rapid disassembly and assembly are facilitated; and secondly, a volute spring is used for releasing to drive a winding roller to rotate to wind the wire in an S-shaped clamping groove, so that the wire is conveniently stored, the wire is prevented from being wound, and the equipment is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of test probes, in particular to a probe used for four-wire testing. Background Art

[0002] The test probe is a high-end precision connection device, which is widely used in testing PCB circuit boards and 10FPC (printed circuits). It is mainly used as a precision probe for connection. It has been widely used in technical fields such as mobile phones, automobiles, medical treatment, and aerospace. When in use, the test probe is installed on the test fixture, one end of the test probe is connected to the output end (the output end refers to voltage, frequency, etc.), and the other end of the test probe is connected to the component to be tested before the test can be carried out. The requirements for the test probe during the test process are extremely high. The spring probe usually includes a needle shaft, a needle tube and a spring. The spring is arranged in the needle tube, and the needle shaft is inserted in the needle tube. When the needle shaft is squeezed by the components, the compression spring moves axially, the outer surface of the needle shaft contacts the inner surface of the needle tube, and the current is transmitted from the needle shaft to the needle tube and then connected to the external test equipment.

[0003] However, the existing test probes on the market still have certain defects. First, most devices connect the probe body to the wire through a nut sleeve, and the disassembly and assembly efficiency is low. Secondly, the wires of the existing test probe equipment will be longer when in use, which may cause entanglement and affect the use. Therefore, a probe for four-wire testing is proposed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a probe for four-wire testing to solve the technical problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a probe for four-wire testing, comprising a test probe body, the right end of the test probe body is fixedly connected to a socket, a clamping rod is slidably inserted into the outer wall of the socket, a spring is sleeved on the outer wall of the clamping rod, a plug body is inserted into the interior of the socket, a conical sleeve is fixedly provided on the outer wall of the plug body, one end of the plug body is fixedly connected to a wire, the outer wall of the wire is clamped in a winding box, a winding roller is rotatably connected to the interior of the winding box, one end of a spiral spring is clamped in the bottom center of the winding box, the other end of the spiral spring is clamped in the winding roller, and the wire is wound around the outer wall of the winding roller.

[0006] As a preferred technical solution of a probe for four-wire testing of the utility model, a jack is provided at the center of the socket, a card slot is provided on the inner wall of the jack, a pin is fixedly connected to the center of the jack, a spring hole is penetrated through the outer wall of the lower end of the socket, and the card rod is slidably inserted into the inside of the spring hole.

[0007] As a preferred technical solution of a probe for four-wire testing of the utility model, the lower end of the clamping rod is fixedly connected to a sliding rod, and the cross-sectional diameter of the sliding rod is smaller than the cross-sectional diameter of the clamping rod, a spring is provided on the outer wall of the sliding rod, the lower end of the sliding rod is fixedly connected to a limiting block, and the outer wall of the limiting block is fixedly connected to a pull ring.

[0008] As a preferred technical solution of a probe for four-wire testing of the utility model, a card block is fixedly connected to the upper outer wall of the plug body, a connecting sleeve is fixedly provided at the center of the plug body, a card hole is opened on the lower outer wall of the plug body, and one end of the wire is fixedly connected to a power plug.

[0009] As a preferred technical solution for a probe used for four-wire testing of the utility model, the outer wall of the winding box is symmetrically provided with two groups of openings, a first rotating seat is fixedly provided at the center of the inner wall at the bottom end of the winding box, the internal rotation of the first rotating seat is connected with a fixed rod, and one end of a spiral spring is clamped inside the fixed rod, and a second rotating seat is fixedly provided on the inner wall of the top end of the winding box.

[0010] As a preferred technical solution for a probe used for four-wire testing of the utility model, an installation cavity is provided at the bottom end of the winding roller, a bayonet is provided on the inner wall of the installation cavity, and the other end of the fixing rod is clamped in the bayonet, an S-shaped slot is provided at the top end of the winding roller, and two groups of upper rotating blocks are symmetrically provided at the top end of the winding roller.

[0011] As an optimal technical solution for a probe used for four-wire testing of the utility model, the top end of the fixed rod is fixedly connected to the lower surface of the winding roller, the two groups of upper rotating blocks are rotatably connected to the inside of the second rotating seat, and the wire is movably arranged inside the S-shaped slot.

[0012] In summary, the utility model mainly has the following beneficial effects:

[0013] The utility model inserts the plug body into the jack, and at the same time, the plug body squeezes the clamping rod and the spring, and then rotates rightward to clamp the clamping block into the inside of the clamping slot to complete the first fixation. Then, the spring drives the clamping rod to rebound and reset, so that the clamping rod is inserted into the clamping hole to realize the second fixation of the plug body. To release, it only needs to rotate the plug body in the opposite direction and then pull the pull ring to pull out the plug body. The fixing efficiency is high and the fixing effect is good, which is convenient for quick disassembly and assembly. Secondly, the spiral spring is released to drive the winding roller to rotate to rewind the wire inside the S-shaped clamping slot, so that the wire can be conveniently stored, the wire is prevented from being entangled, and the use of the equipment is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the front view of the device of the utility model;

[0015] Figure 2It is a detailed diagram of a partial disassembly of the utility model;

[0016] Figure 3 It is a partial detailed diagram of the utility model;

[0017] Figure 4 It is a partial detailed diagram of the utility model;

[0018] Figure 5 It is a partial exploded view of the utility model;

[0019] Figure 6 It is a partial exploded view of the utility model;

[0020] Figure 7 It is a partial detailed diagram of the utility model;

[0021] Figure 8 It is a partial detailed diagram of the utility model.

[0022] In the figure: 100, test probe body; 110, socket; 111, jack; 112, slot; 113, pin; 114, spring hole; 120, clamping rod; 121, slide rod; 122, limit block; 123, pull ring; 130, spring; 200, plug body; 201, clamping block; 202, connecting sleeve; 203, clamping hole; 204, wire; 205, power plug; 210, conical sleeve; 300, rewinding box; 301, through port; 302, first rotating seat; 303, fixing rod; 304, second rotating seat; 310, rewinding roller; 311, S-shaped slot; 312, upper rotating block; 313, bayonet; 320, spiral spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0024] The following describes an embodiment of the utility model based on its overall structure.

[0025] A probe for four-wire testing, such as Figure 1-8As shown, it includes a test probe body 100, the right end of the test probe body 100 is fixedly connected to a socket 110, the outer wall of the socket 110 is slidably inserted with a clamping rod 120, the outer wall of the clamping rod 120 is sleeved with a spring 130, the interior of the socket 110 is inserted with a plug body 200, the outer wall of the plug body 200 is fixedly provided with a conical sleeve 210, one end of the plug body 200 is fixedly connected to a wire 204, the outer wall of the wire 204 is clamped in the interior of a winding box 300, the interior of the winding box 300 is rotatably connected to a winding roller 310, one end of a spiral spring 320 is clamped in the center of the bottom end of the winding box 300, the other end of the spiral spring 320 is clamped in the winding roller 310, and the wire 204 is wound around the outer wall of the winding roller 310.

[0026] First, align the plug body 200 with the socket 111 and insert it. At the same time, the plug body 200 squeezes the clamping rod 120 and the spring 130, and then rotates rightward to clamp the clamping block 201 into the clamping slot 112 to complete the first fixation. Then the spring 130 drives the clamping rod 120 to rebound and reset, so that the clamping rod 120 is inserted into the clamping hole 203 to achieve the re-fixation of the plug body 200. To release it, just rotate the plug body 200 in the opposite direction, pull the pull ring 123 and pull out the plug body 200. The fixing efficiency is high and the fixing effect is good, which is convenient for quick disassembly and assembly.

[0027] Please refer to Figure 1 , 2 3. A plug hole 111 is provided at the center of the socket 110, a slot 112 is provided on the inner wall of the plug hole 111, a pin 113 is fixedly connected to the center of the plug hole 111, a spring hole 114 is penetrated through the outer wall of the lower end of the socket 110, and the clamping rod 120 is slidably inserted into the inside of the spring hole 114.

[0028] A socket 110 is provided with a socket 111 at the center thereof into which the plug body 200 can be inserted, a card slot 112 is provided on the inner wall of the socket 111 into which the card block 201 can be engaged and fixed, a pin 113 is fixedly connected to the center of the socket 111 into which different electrodes can be connected, and a spring hole 114 is provided through the outer wall at the lower end of the socket 110 to provide a movable space for the card rod 120 and the spring 130.

[0029] Please refer to Figure 2 , 3 The lower end of the card rod 120 is fixedly connected to a sliding rod 121, and the cross-sectional diameter of the sliding rod 121 is smaller than the cross-sectional diameter of the card rod 120. A spring 130 is provided on the outer wall of the sliding rod 121. The lower end of the sliding rod 121 is fixedly connected to a limiting block 122, and a pull ring 123 is fixedly connected to the outer wall of the limiting block 122.

[0030] The lower end of the card rod 120 is fixedly connected to a sliding rod 121, and the cross-sectional diameter of the sliding rod 121 is smaller than the cross-sectional diameter of the card rod 120, so as to limit the card rod 120. A spring 130 is provided on the outer wall of the sliding rod 121 to provide a reset force for the card rod 120. The lower end of the sliding rod 121 is fixedly connected to a limiting block 122 to limit the card rod 120 and the spring 130. A pull ring 123 is fixedly connected to the outer wall of the limiting block 122 to facilitate the pulling of the card rod 120.

[0031] Please refer to Figure 4 , 5 6. A clamping block 201 is fixedly connected to the outer wall of the upper end of the plug body 200, a connecting sleeve 202 is fixedly provided at the center of the plug body 200, a clamping hole 203 is opened on the outer wall of the lower end of the plug body 200, and one end of the wire 204 is fixedly connected to a power plug 205.

[0032] The upper outer wall of the plug body 200 is fixedly connected with a clamp block 201 which can cooperate with the clamp slot 112 to fix it. The center of the plug body 200 is fixedly provided with a connecting sleeve 202 which can protect the wire 204 and prevent the wire 204 from breaking. The lower outer wall of the plug body 200 is provided with a clamp hole 203 which can cooperate with the clamp rod 120 for quick fixation. One end of the wire 204 is fixedly connected with a power plug 205 which can be connected to a power supply device.

[0033] Please refer to Figure 5 , 6 , 7, 8, the outer wall of the winding box 300 is symmetrically provided with two groups of through openings 301, a first rotating seat 302 is fixedly provided at the center of the inner wall at the bottom end of the winding box 300, the internal rotation of the first rotating seat 302 is connected with a fixed rod 303, and the internal clamping of the fixed rod 303 is provided with one end of a spiral spring 320, and a second rotating seat 304 is fixedly provided on the inner wall at the top end of the winding box 300.

[0034] The outer wall of the winding box 300 is symmetrically provided with two groups of openings 301 for the wire 204 to pass through. A first rotating seat 302 is fixedly provided at the center of the inner wall at the bottom end of the winding box 300. The internal rotation of the first rotating seat 302 is connected with a fixed rod 303 to limit the winding roller 310 and ensure the stable rotation of the winding roller 310.

[0035] Please refer to Figure 5 , 6 , 7, 8, a mounting cavity is provided at the bottom end of the winding roller 310, a bayonet 313 is provided on the inner wall of the mounting cavity, and the other end of the fixing rod 303 is clamped in the bayonet 313, an S-shaped slot 311 is provided at the top end of the winding roller 310, and two sets of upper rotating blocks 312 are symmetrically provided at the top end of the winding roller 310.

[0036] The bottom end of the winding roller 310 is provided with an installation cavity, the inner wall of the installation cavity is provided with a bayonet 313, and the other end of the fixing rod 303 is clamped in the bayonet 313 to fix it, and the top end of the winding roller 310 is provided with an S-shaped slot 311 to facilitate fixing the wire 204.

[0037] Please refer to Figure 5 , 6 , 7, 8, the top end of the fixed rod 303 is fixedly connected to the lower surface of the winding roller 310, the two sets of upper rotating blocks 312 are rotatably connected to the inside of the second rotating seat 304, and the wire 204 is movably arranged inside the S-shaped slot 311.

[0038] The rotation of the two sets of upper rotating blocks 312 connected to the inside of the second rotating seat 304 can limit the winding roller 310 to ensure stable rotation operation.

[0039] First, align the plug body 200 with the jack 111 and insert it. At the same time, the plug body 200 squeezes the card rod 120 and the spring 130, and then rotates to the right to insert the card block 201 into the card slot 112 to complete the first fixation. Then the spring 130 drives the card rod 120 to rebound and reset, so that the card rod 120 is inserted into the card hole 203 to achieve the re-fixation of the plug body 200. To release it, just rotate the plug body 200 in the opposite direction and then pull the pull ring 123 and pull out the plug body 200. The fixing efficiency is high and the fixing effect is good, which is convenient for quick disassembly and assembly; secondly, the spiral spring 320 is used to release and drive the reel 310 to rotate to reel the wire 204 inside the S-shaped card slot 311, so as to realize the convenient storage of the wire 204, prevent the wire 204 from being entangled, and facilitate the use of the equipment. The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A probe for four-wire testing, comprising a test probe body (100), characterized in that: The right end of the test probe body (100) is fixedly connected to a socket (110), a clamping rod (120) is slidably inserted into the outer wall of the socket (110), and a spring (130) is sleeved on the outer wall of the clamping rod (120). A plug body (200) is inserted into the interior of the socket (110), and a conical sleeve (210) is fixedly provided on the outer wall of the plug body (200). One end of the plug body (200) is fixedly connected to a wire (204), and the outer wall of the wire (204) is clamped in the interior of a reeling box (300). A reeling roller (310) is rotatably connected to the interior of the reeling box (300), and one end of a spiral spring (320) is clamped in the center of the bottom end of the reeling box (300), and the other end of the spiral spring (320) is clamped in the reeling roller (310), and the wire (204) is wound around the outer wall of the reeling roller (310).

2. A probe for four-wire testing according to claim 1, characterized in that: The center of the socket (110) is provided with a plug hole (111), the inner wall of the plug hole (111) is provided with a card slot (112), the center of the plug hole (111) is fixedly connected with a plug pin (113), the lower end outer wall of the socket (110) is penetrated with a spring hole (114), and the card rod (120) is slidably inserted into the inside of the spring hole (114).

3. A probe for four-wire testing according to claim 1, characterized in that: The lower end of the clamping rod (120) is fixedly connected to a sliding rod (121), and the cross-sectional diameter of the sliding rod (121) is smaller than the cross-sectional diameter of the clamping rod (120). A spring (130) is provided on the outer wall of the sliding rod (121). The lower end of the sliding rod (121) is fixedly connected to a limiting block (122), and the outer wall of the limiting block (122) is fixedly connected to a pull ring (123).

4. A probe for four-wire testing according to claim 1, characterized in that: A clamping block (201) is fixedly connected to the outer wall of the upper end of the plug body (200), a connecting sleeve (202) is fixedly provided at the center of the plug body (200), a clamping hole (203) is provided on the outer wall of the lower end of the plug body (200), and one end of the wire (204) is fixedly connected to a power plug (205).

5. The probe for four-wire testing according to claim 1, characterized in that: The outer wall of the reeling box (300) is symmetrically provided with two groups of openings (301); a first rotating seat (302) is fixedly provided at the center of the inner wall at the bottom end of the reeling box (300); a fixing rod (303) is rotatably connected to the inside of the first rotating seat (302); and one end of a spiral spring (320) is clamped inside the fixing rod (303); a second rotating seat (304) is fixedly provided on the inner wall at the top end of the reeling box (300).

6. A probe for four-wire testing according to claim 5, characterized in that: The bottom end of the winding roller (310) is provided with a mounting cavity, the inner wall of the mounting cavity is provided with a bayonet (313), and the other end of the fixing rod (303) is clamped in the bayonet (313), the top end of the winding roller (310) is provided with an S-shaped slot (311), and the top end of the winding roller (310) is symmetrically provided with two groups of upper rotating blocks (312).

7. A probe for four-wire testing according to claim 6, characterized in that: The top end of the fixed rod (303) is fixedly connected to the lower surface of the winding roller (310), the two sets of upper rotating blocks (312) are rotatably connected to the inside of the second rotating seat (304), and the wire (204) is movably arranged inside the S-shaped slot (311).

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