Safe wiring device

Abstract

The utility model relates to the technical field of power utilization efficiency detection for oil field mechanical maintenance, in particular to a safe wiring device, which comprises a clamping mechanism and a driving mechanism. The driving mechanism comprises an upper rod body and a lower rod body which are coaxially arranged and are provided with cavities, the upper rod body and the lower rod body are made of insulating materials, and the bottom of the upper rod body and the top of the lower rod body are provided with a group of inclined convex teeth which are in transmission fit; the clamping mechanism comprises an outer disc body and an inner disc body which are coaxially arranged, the bottom of the lower rod body penetrates through the circle center of the inner disc body and then is fixedly connected with the inner disc body, the outer disc body is rotationally connected with the lower rod body, the inner disc body is rotationally connected with a set of transmission arms, and the free end of each transmission arm is hinged to a holding block. During temporary power connection rapid detection, the front end cylinder sleeve covers a binding post, then the front end cylinder sleeve is pushed forwards to be rapidly conducted and firmly connected with the binding post, and after rapid detection is completed, the upper rod body is withdrawn backwards to rapidly release enclasping connection to the binding post.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield machinery maintenance electricity efficiency detection, in particular to a safety wiring device. Background Art

[0002] At present, when the machine-mined test instrument is used for testing at the oil field site, the equipment is generally shut down and powered off for wiring safety, and then the temporary zero-line operation is performed. However, some production equipment cannot be powered off at will, which will directly affect the operation and production of the equipment. Therefore, the operator needs to wear insulating gloves to manually connect the test wire to the terminal. Some oil well motors use voltages exceeding 1000 volts, and the internal wiring of the distribution cabinet is intricate. It is very dangerous for the operator to enter the distribution cabinet with his hands. For example, a high-voltage distribution cabinet disclosed in Patent No. ZL201810462932.6;

[0003] In addition, some terminal blocks are installed inside the high-voltage distribution cabinet, and the exposed metal part is very short and difficult to connect, which can easily lead to false connections or even the possibility of the wires falling off and touching other terminals, causing a short circuit to the adjacent circuit, resulting in accidents and the risk of electric shock. Summary of the invention

[0004] The purpose of the utility model is to provide a safety wiring device to address the defects of the prior art. The device can quickly connect the wiring posts for testing without cutting off the power supply, and avoid close contact between the operating personnel and the wiring posts, which is safer and more efficient.

[0005] The technical solution of the utility model is:

[0006] A safety wiring device comprises a clamping mechanism and a driving mechanism for driving the clamping mechanism;

[0007] The driving mechanism comprises an upper rod body and a lower rod body which are coaxially arranged and have a cavity, the upper rod body and the lower rod body are made of insulating material, a group of transmission-matched oblique convex teeth are provided at the bottom of the upper rod body and the top of the lower rod body, a limit frame is provided in the cavity of the upper rod body, a connecting rod is coaxially rotatably connected in the cavity of the lower rod body, the top of the connecting rod passes through the limit frame and is connected to the limit block, and a first supporting spring is provided between the limit frame and the inner bottom surface of the cavity of the lower rod body;

[0008] The clamping mechanism includes an outer disk body and an inner disk body arranged coaxially, the bottom of the lower rod body passes through the center of the inner disk body and is fixedly connected to the inner disk body, the outer disk body and the lower rod body are rotatably connected, a group of transmission arms are rotatably connected to the inner disk body, the free end of each transmission arm is hinged with a clamping block, a wire is connected to the clamping block, a guide groove is provided on the transmission arm, and a guide column matching the guide groove is provided on the outer disk body. When the inner disk body rotates, a group of clamping blocks are pulled inwardly to be tightened by a group of transmission arms, and a tube sleeve covering the clamping block inside is connected to the outer disk body.

[0009] Preferably, a one-way ratchet groove is provided at the top of the connecting rod along the length direction, a frame is provided at the upper end of the connecting rod and is sleeved on the outside of the connecting rod, a latch tooth matching the ratchet groove is provided in the frame, a second support spring is provided between one side of the frame close to the latch tooth and the inner wall of the upper rod body, and an unlocking button that passes through the upper rod body is provided on the other side of the frame.

[0010] Preferably, the one-way ratchet groove is a continuous right-angled triangle structure slot, and the vertical cross-section of the latch tooth is a right-angled triangle structure adapted to the one-way ratchet groove.

[0011] Preferably, the button is made of insulating material.

[0012] Preferably, a positioning protrusion inserted into the inner hole of the second supporting spring is provided on the outer side of the frame.

[0013] Preferably, a tooth groove is provided on the inner side surface of the clamping block.

[0014] Preferably, the inner disc body, the outer disc body and the sleeve are all made of insulating materials.

[0015] Preferably, the ends of the upper rod body and the lower rod body are respectively provided with two oblique convex teeth which are arranged in a circumferential manner with equal intervals.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] When performing a quick test on temporary power connection, the front end tube of the utility model is covered with the terminal, and then pushed forward to quickly connect with the terminal. After the quick test is completed, the upper rod body is withdrawn backward to quickly release the connection with the terminal.

[0018] In this way, the terminal blocks can be quickly connected for testing without cutting off the power supply. It is very flexible and convenient to use, and avoids close contact between operators and the terminal blocks, making it safer and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 is a structural schematic diagram of the driving mechanism;

[0021] Figure 3 is a schematic diagram of the internal structure of the driving mechanism;

[0022] Figure 4 It is a schematic diagram of the cooperation between the one-way ratchet groove and the latching teeth;

[0023] Figure 5 is a structural schematic diagram of the clamping mechanism;

[0024] Figure 6 It is a schematic diagram of the assembly of the clamping block, the transmission arm and the inner disc body;

[0025] In the figure: 1, driving mechanism, 2, clamping mechanism, 3, wire, 101, upper rod body, 102, lower rod body, 103, oblique convex teeth, 104, second supporting spring, 105, positioning convex, 106, limiting block, 107, frame, 108, unlocking button, 109, one-way ratchet groove, 110, limiting frame, 111, connecting rod, 112, first supporting spring, 113, latching teeth, 201, sleeve, 202, outer disk body, 203, inner disk body, 204, transmission arm, 205, clamping block, 206, guide groove, 207, guide column. DETAILED DESCRIPTION

[0026] The utility model is further described below with reference to the accompanying drawings and embodiments. Example 1

[0027] like Figure 1 A safety wiring device comprises a clamping mechanism 2 and a driving mechanism 1 for driving the clamping mechanism 2.

[0028] like Figures 2 to 4 The driving mechanism 1 includes an upper rod body 101 and a lower rod body 102 which are coaxially arranged and have a cavity. The overall length of the upper rod body 101 and the lower rod body 102 is about 1 meter. The lower rod body 102 is made of insulating material. A group of transmission-matching oblique convex teeth 103 are provided at the bottom of the upper rod body 101 and the top of the lower rod body 102.

[0029] To increase the smoothness of the fit, two oblique convex teeth 103 arranged in a circle with equal spacing are respectively provided at the ends of the upper rod body 101 and the lower rod body 102 .

[0030] A limit frame 110 is provided in the cavity of the upper rod body 101, and a connecting rod 111 is coaxially rotatably connected in the cavity of the lower rod body 102. The top of the connecting rod 111 passes through the limit frame 110 and is connected to the limit block 106. A first supporting spring 112 is provided between the limit frame 110 and the inner bottom surface of the cavity of the lower rod body 102.

[0031] like Figure 5 and Figure 6The clamping mechanism 2 includes an outer disk body 202 and an inner disk body 203 which are coaxially arranged. The bottom of the lower rod body 102 passes through the center of the inner disk body 203 and is fixedly connected to the inner disk body 203. The outer disk body 202 and the lower rod body 102 are rotatably connected.

[0032] The inner disk body 203 is rotatably connected to three transmission arms 204, and a clamping block 205 is hinged at the free end of each transmission arm 204. A wire 3 is connected to one of the clamping blocks 205, and a sleeve 201 covering the clamping block 205 is connected to the outer disk body 202.

[0033] A guide groove 206 is provided on the transmission arm 204, and a guide column 207 cooperating with the guide groove 206 is provided on the outer disk body 202. When the inner disk body 203 rotates, the three transmission arms 204 pull the three clamping blocks 205 inward to tighten and clamp the terminal.

[0034] Working principle:

[0035] When in use, the sleeve 201 is covered on the outside of the terminal, and then pushed forward along the axis of the utility model, the sleeve 201 contacts the device housing, and when the push continues, the first support spring 112 is compressed, and the oblique convex teeth 103 matching the ends of the upper rod body 101 and the lower rod body 102 are engaged, thereby driving the lower rod body 102 to rotate, and the rotation of the lower rod body 102 drives the inner disk body 203 to rotate, and the inner disk body 203 then pulls a group of clamping blocks 205 to tighten inwards through a group of transmission arms 204, thereby clamping the terminal through the clamping blocks 205;

[0036] When the holding block 205 is made of a conductive metal material, the holding block 205 can be electrically connected to the wire 3, and the other end of the wire 3 can be connected to the device for rapid detection;

[0037] When the clamping block 205 is made of non-conductive material, one end of the wire 3 is fixed to the inner side of the clamping block 205, and the end of the wire 3 is so that when the clamping block 205 clamps the terminal, the exposed metal core of the wire 3 is tightly attached to the terminal.

[0038] After the rapid detection is completed, the upper rod body 101 is withdrawn backward, thereby canceling the thrust applied to the upper rod body 101, and the compressed first support spring 112 is elastically reset, and under the guidance of the oblique convex teeth 103, the lower rod body 102 rotates back to its original position, thereby driving the clamping block 205 to return to its original position and releasing the clamping of the terminal. Example 2

[0039] This embodiment is further optimized on the basis of the above embodiment, specifically:

[0040] A one-way ratchet groove 109 is provided at the top of the connecting rod 111 along the length direction, and the one-way ratchet groove 109 is a continuous right-angled triangular structure.

[0041] A frame 107 sleeved on the outside of the connecting rod 111 is disposed at the upper end of the connecting rod 111 . A latching tooth 113 is disposed inside the frame 107 . The vertical section of the latching tooth 113 is a right-angled triangle structure adapted to the one-way ratchet groove 109 .

[0042] A second support spring 104 is disposed between one side of the frame 107 connected to the latch teeth 113 and the inner wall of the upper rod body 101 , and an unlocking button 108 penetrating through the upper rod body 101 is disposed on the other side of the frame 107 .

[0043] When the utility model is pushed forward along the axis, the matching oblique convex teeth 103 at the ends of the upper rod body 101 and the lower rod body 102 are meshed, so that the connecting rod 111 continuously moves into the upper rod body 101. At this time, the position of the connecting rod 111 can be locked through the cooperation of the one-way ratchet groove 109 and the latch tooth 113, thereby locking the clamping state of the clamping block 205. Compared with Example 1, during the quick inspection process, there is no need to apply thrust to the upper rod body 101 all the time.

[0044] When the quick inspection is completed, the unlocking button 108 is pressed to disengage the latching tooth 113 from the one-way ratchet groove 109 . At this time, the connecting rod 111 can move back to its original position, thereby unlocking the clamping state of the clamping block 205 . Example 3

[0045] This embodiment is further optimized on the basis of the above embodiment, specifically:

[0046] The outer side of the frame 107 is provided with a positioning protrusion 105 inserted into the inner hole of the second supporting spring 104 .

[0047] The second support spring 104 is limited by adding a positioning protrusion 105, thereby improving the stability in use. Example 4

[0048] This embodiment is further optimized on the basis of the above embodiment, specifically:

[0049] The inner side of the clamping block 205 is provided with a tooth groove, and the outer side of some of the terminals is provided with a thread. The clamping block 205 with a tooth groove can be more conveniently engaged with the threaded terminal. Example 5

[0050] This embodiment is further optimized on the basis of the above embodiment, specifically:

[0051] In order to improve safety performance and avoid electrical conduction of components, the utility model makes the upper rod body 101, the inner disk body 203, the outer disk body 202, the sleeve 201 and the button all made of insulating materials.

[0052] The utility model can carry out rapid power connection detection on the wiring posts at the oil field operation site, avoiding the need for operators to hold the connection wires and extend them into the distribution cabinet for live operation. It has significant benefits in terms of safety and practicality, and has good application prospects and promotion value.

[0053] The present invention is not limited to the above-mentioned implementation modes. Within the knowledge scope of those skilled in the art, various changes can be made without departing from the purpose of the present invention. The changed contents still belong to the protection scope of the present invention.

Claims

1. A safety wiring device, characterized in that: It includes a clamping mechanism, and a driving mechanism for driving the clamping mechanism; The driving mechanism comprises an upper rod body and a lower rod body which are coaxially arranged and have a cavity, the upper rod body and the lower rod body are made of insulating material, a group of transmission-matched oblique convex teeth are provided at the bottom of the upper rod body and the top of the lower rod body, a limit frame is provided in the cavity of the upper rod body, a connecting rod is coaxially rotatably connected in the cavity of the lower rod body, the top of the connecting rod passes through the limit frame and is connected to the limit block, and a first supporting spring is provided between the limit frame and the inner bottom surface of the cavity of the lower rod body; The clamping mechanism includes an outer disk body and an inner disk body arranged coaxially, the bottom of the lower rod body passes through the center of the inner disk body and is fixedly connected to the inner disk body, the outer disk body and the lower rod body are rotatably connected, a group of transmission arms are rotatably connected to the inner disk body, the free end of each transmission arm is hinged with a clamping block, a wire is connected to the clamping block, a guide groove is provided on the transmission arm, and a guide column matching the guide groove is provided on the outer disk body. When the inner disk body rotates, a group of clamping blocks are pulled inwardly to be tightened by a group of transmission arms, and a tube sleeve covering the clamping block inside is connected to the outer disk body.

2. A safety wiring device according to claim 1, characterized in that: A one-way ratchet groove is provided at the top of the connecting rod along the length direction, and a frame is provided at the upper end of the connecting rod and is sleeved on the outside of the connecting rod. A latch tooth matching the ratchet groove is provided in the frame, and a second supporting spring is provided between one side of the frame close to the latch tooth and the inner wall of the upper rod body, and an unlocking button that passes through the upper rod body is provided on the other side of the frame.

3. A safety wiring device according to claim 2, characterized in that: The one-way ratchet groove is a continuous right-angled triangle structure slot, and the vertical section of the latch tooth is a right-angled triangle structure adapted to the one-way ratchet groove.

4. A safety wiring device according to claim 2, characterized in that: The button is made of insulating material.

5. A safety wiring device according to claim 2, characterized in that: The outer side of the frame is provided with a positioning protrusion which is inserted into the inner hole of the second supporting spring.

6. A safety wiring device according to claim 1, characterized in that: The inner side surface of the clamping block is provided with a tooth groove.

7. A safety wiring device according to claim 1, characterized in that: The inner disc body, the outer disc body and the sleeve are all made of insulating materials.

8. A safety wiring device according to claim 1, characterized in that: The ends of the upper rod body and the lower rod body are respectively provided with two oblique convex teeth which are arranged around with equal intervals.

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