A split-actuating detection rod and method for a conversion device

Abstract

The present invention relates to a split drive detection rod and method for a conversion device, characterized in that it includes: a first rod (1) and a second rod (2) of a split drive locking rod (15) and a split drive indicating rod (16), and a joint (3). The middle parts of the first rod (1) and the second rod (2) are square rod structures, and each has a detection port and an adjustment port. The first rod (1) and the second rod (2) are round rods with threaded mounting holes at both ends. The first rod (1) and the second rod (2) are parallel in opposite directions to align and combine the square rod parts, and insulating tubes (4) are respectively sleeved at their ends. There are two joints (3), which are respectively connected to the first rod (1) and the second rod (2). This split drive detection rod and method for a conversion device have a simple structure, are easy to operate, have good strength, and when the conversion device is reversed, it is not necessary to withdraw the split drive detection rod, but only to reverse the joint iron assembly of the split drive detection rod.

Description

Technical Field

[0001] The present invention belongs to the field of railway switch conversion equipment, and particularly relates to a split motion detection rod for a conversion device used in a switch machine or a close contact checker. Its purpose is to be installed in a switch machine, a close contact checker or a similar device to check the state of the switch tongue rail. Background Art

[0002] After the railway switch conversion is completed, strict requirements are imposed on the close contact state between the switch tongue rail and the stock rail to ensure the safety of train operation. Both the switch machine and the close contact checker or similar devices have the function of detecting the close contact state between the switch tongue rail and the stock rail. Currently, the switch machines, close contact checkers or similar devices in use are basically connected to the switch tongue rail with a detection rod, and a detection port (notch or boss) is set at an appropriate position on the detection rod. When the detection port (notch or boss) of the detection rod moves in the switch machine, the close contact checker or similar device to the position where the switch tongue rail and the stock rail meet the close contact requirement, the mechanism inside the switch machine, the close contact checker or similar device acts to connect the contacts; when the detection port (notch or boss) of the detection rod is not in the designed position, the contacts inside the switch machine, the close contact checker or similar device cannot be connected; the current split motion detection rod structure is a square rod structure, which increases the difficulty of sealing performance. Summary of the Invention

[0003] The purpose of the present invention is to provide a split motion detection rod and method for a conversion device with a simple structure, easy operation and good strength, and at the same time, when the conversion device is reversed, the split motion detection rod does not need to be withdrawn, but only the joint iron assembly of the split motion detection rod is reversed.

[0004] To solve the above problems, the technical solution of the present invention is: it relates to a split motion detection rod and method for a conversion device, and is characterized in that it includes: a split motion detection control unit, a split motion locking rod and a split motion indicating rod. The split motion detection control unit is installed outside the switch. The split motion locking rod and the split motion indicating rod are respectively installed in the split motion detection control unit at different traction points of the switch. The split motion locking rod and the split motion indicating rod are vertically installed and fixed between the two switch tongue rails of the switch through the split motion detection control unit. The split motion locking rod and the split motion indicating rod respectively include a first rod, a second rod and a joint iron. There are notches or bosses on the first rod and the second rod respectively. The close contact state between the switch tongue rail and the stock rail is obtained through the notches or bosses on the first rod and the second rod and the split motion indicating rod, and information on whether the contacts are connected or disconnected is given.

[0005] The split motion locking rod includes: the first rod and the second rod of the split motion locking rod and the joint iron; the first rod and the second rod of the split motion locking rod have the same structure. The middle parts of the first rod and the second rod of the split motion locking rod are square rod structures, and each has a detection port and an adjustment port. The first rod and the second rod of the split motion locking rod are round rods with threaded mounting holes at both ends; the first rod and the second rod of the split motion locking rod are parallel in opposite directions so that the square rod parts are aligned and combined, and insulating tubes are respectively sleeved on their ends.

[0006] There are two joint irons, which are respectively connected to the first rod and the second rod of the split locking rod; the joint iron is a U-shaped groove structure with a bent head. The U-shaped groove has two mounting holes, and the bent head has one mounting hole. The two mounting holes of the U-shaped groove and the one mounting hole of the bent head are perpendicular. The U-shaped grooves of the two joint irons are respectively sleeved on the insulating pipes sleeved on the first rod and the second rod of the split locking rod in the same direction. The two joint irons and the first rod and the second rod of the split locking rod are connected by lock washers, backing plates and bolts respectively; the bent head of each joint iron has ears parallel to each other up and down, and the mounting hole is in the ears parallel to each other up and down, and is connected up and down by bolts. After the first rod and the second rod of the split locking rod are connected in parallel, the first rod adjustment port of the first rod of the split locking rod is aligned with the second rod detection port of the second rod, and the first rod detection port of the first rod of the split locking rod is aligned with the second rod adjustment port of the second rod.

[0007] The diameters of the circular rods of the first rod and the second rod of the split locking rod are smaller than the cross-section of the square rod. The intersection of the square cross-section and the circular cross-section adopts a fillet with a radius of R0.5-R1 to ensure the strength at the intersection.

[0008] The detection port of the split locking rod is a square port structure, and the adjustment port is a trapezoidal port structure; the detection port and the adjustment port are at both ends of the square rod.

[0009] The dimension of the adjustment port of the first rod and the second rod of the split locking rod along the length direction is larger than the dimension of the detection port along the length direction.

[0010] The split indicating rod includes: the first rod and the second rod of the split indicating rod and the joint iron. The structures of the first rod and the second rod of the split indicating rod are the same; the middle parts of the first rod and the second rod of the split indicating rod are square rod structures, and each has a detection port and an adjustment port respectively. The first rod and the second rod of the split indicating rod are circular rods with threaded mounting holes at both ends; the first rod and the second rod of the split indicating rod are parallel to each other in opposite directions so that the square rod parts are aligned and combined, and their ends are respectively sleeved with insulating pipes.

[0011] There are two joint irons, which are respectively connected to the first rod and the second rod of the split indicating rod; the joint iron is a U-shaped groove structure with a bent head. The U-shaped groove has two mounting holes, and the bent head has one mounting hole. The two mounting holes of the U-shaped groove and the one mounting hole of the bent head are perpendicular. The U-shaped grooves of the two joint irons are respectively sleeved on the insulating pipes sleeved on the first rod and the second rod of the split indicating rod in the same direction. The two joint irons and the first rod and the second rod of the split indicating rod are connected by lock washers, backing plates and bolts respectively; the bent head of each joint iron has ears parallel to each other up and down, and the mounting hole is in the ears parallel to each other up and down, and is connected up and down by bolts. After the first rod and the second rod of the split indicating rod are connected in parallel, the first rod adjustment port of the first rod of the split indicating rod is aligned with the second rod detection port of the second rod, and the first rod detection port of the first rod of the split indicating rod is aligned with the second rod adjustment port of the second rod.

[0012] For the first rod and the second rod of the split drive indicating rod, the diameter of the round rod is smaller than the cross-section of the square rod. At the intersection of the square cross-section and the round cross-section, a fillet with a radius of R0.5 - R1 is used for transition to ensure the strength at the intersection.

[0013] For the first rod detection port and the second rod detection port of the split drive indicating rod, there are elongated notches on the square side arms. The first of the two elongated notches is between the first rod adjustment port and the second rod detection port of the first rod and the second rod of the split drive indicating rod, and the second of the two elongated notches is between the first rod detection port and the second rod adjustment port of the first rod and the second rod of the split drive indicating rod. There are inspection blocks in the two elongated notches; the detection port of the split drive indicating rod is of a square port structure, and the adjustment port is of a trapezoidal port structure; the detection port and the adjustment port are at both ends of the square rod.

[0014] For the first rod and the second rod of the split drive locking rod, the dimension of the adjustment port along the length direction is larger than the dimension of the detection port along the length direction.

[0015] The advantages of the present invention are:

[0016] The present invention relates to two independent first rods 1 and second rods 2 of a split drive locking rod 15 and a split drive indicating rod 16. The middle part of each rod is of a square rod structure and has two detection ports, and both ends of each rod are round rods with threaded holes; the diameter of the round rod of each rod is slightly smaller than the cross-section of the square rod. At the intersection of the square cross-section and the round cross-section, a fillet with a radius of R0.5 - R1 is used for transition to ensure the strength. The first rods 1 and the second rods 2 of the split drive locking rod 15 and the split drive indicating rod 16 are fitted, and there are threaded mounting holes at both ends of the first rods 1 and the second rods 2 for installing the joint iron 3; the insulation between the joint iron 3 of the split drive locking rod 15 and the split drive indicating rod 16 and the first rod 1 or the second rod 2 is separated by an insulating tube 4 and an insulating plate 5, with a simple structure, easy to manufacture, and good strength.

[0017] The following further describes the present invention with reference to the accompanying drawings of an embodiment. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention (split drive locking rod);

[0019] Figure 2 It is a three-dimensional structural diagram of Embodiment 1;

[0020] Figure 3 It is a schematic structural diagram of the first rod and the second rod of Embodiment 1;

[0021] Figure 4 It is a schematic structural diagram of Embodiment 2 of the present invention (split drive indicating rod);

[0022] Figure 5 It is a three-dimensional structural diagram of Embodiment 2;

[0023] Figure 6 It is a schematic diagram of the structures of the first rod and the second rod in Embodiment 2;

[0024] Figure 7 It is a schematic diagram of the joint installation structure in Embodiments 1 and 2;

[0025] Figure 8 It is a schematic diagram of the joint in Embodiments 1 and 2;

[0026] Figure 9 It is a schematic diagram of the installation of the inspection block in Embodiment 2;

[0027] Figure 10 It is a schematic diagram of the system in the embodiment of the present invention.

[0028] In the figure, 1 is the first rod; 2 is the second rod; 3 is the joint iron; 4 is the insulating tube; 5 is the insulating plate; 6 is the anti-loosening piece; 7 is the backing plate; 8 is the bolt; 9 is the adjustment opening of the first rod; 10 is the detection opening of the first rod; 11 is the detection opening of the second rod; 12 is the adjustment opening of the second rod; 13 is the inspection block; 14 is the slender notch; 15 is the split locking rod; 16 is the split indicating rod; 17 is the switch; 18 is the split detection control unit. Specific Embodiments

[0029] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific embodiments, structural features, and their effects of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0030] Embodiment 1

[0031] As Figure 10 shown, the present invention relates to a split detection rod and method for a conversion device, which is characterized in that it includes: a split detection control unit 18, a split locking rod 15, and a split indicating rod 16. The split detection control unit 18 is installed outside the switch 17. The split locking rod 15 and the split indicating rod 16 are respectively installed in the split detection control unit 18 at different traction points of the switch. The split locking rod 15 and the split indicating rod 16 are vertically installed and fixed between the two switch points of the switch 17 through the split detection control unit 18. The split locking rod 15 and the split indicating rod 16 respectively include a first rod 1 and a second rod 2 and a joint iron 3. There are notches or bosses on the first rod 1 and the second rod 2. The close contact state of the switch point and the stock rail is obtained through the notches or bosses on the first rod 1 and the second rod 2 and the split indicating rod 16, and the information of the contact being connected or disconnected is given.

[0032] As Figure 1 , Figure 2 , Figure 3 and Figure 7As shown in the figure, the split lock rod 15 includes: the first rod 1 and the second rod 2 of the split lock rod and the joint iron 3. The first rod 1 and the second rod 2 of the split lock rod have the same structure; the middle parts of the first rod 1 and the second rod 2 of the split lock rod are square rod structures, and each has a detection port and an adjustment port. The first rod 1 and the second rod 2 of the split lock rod are round rods with threaded mounting holes at both ends; the first rod 1 and the second rod 2 of the split lock rod are parallel in opposite directions to align and combine the square rod parts, and insulating tubes 4 are respectively sleeved on their ends.

[0033] As Figure 8 As shown in the figure, there are two joint irons 3, which are respectively connected to the first rod 1 and the second rod 2 of the split lock rod; the joint iron 3 is a U-shaped groove structure with elbows. The U-shaped groove has two mounting holes, and the elbow has one mounting hole. The two mounting holes of the U-shaped groove and the one mounting hole of the elbow are perpendicular. The U-shaped grooves of the two joint irons 3 are respectively sleeved on the insulating tubes 4 sleeved in the same direction on the first rod 1 and the second rod 2 of the split lock rod, and the two joint irons 3 and the first rod 1 and the second rod 2 of the split lock rod are connected by lock washers 6, backing plates 7, and bolts 8; each elbow of the joint iron 3 has flat ears up and down, and the mounting hole is in the ears parallel up and down, and is connected up and down by bolts. After the first rod 1 and the second rod 2 of the split lock rod are connected in parallel, the first rod adjustment port 9 of the first rod 1 of the split lock rod is aligned with the second rod detection port 11 of the second rod 2 of the split lock rod, and the first rod detection port 10 of the first rod 1 of the split lock rod is aligned with the second rod adjustment port 12 of the second rod 2 of the split lock rod.

[0034] The diameters of the round rods of the first rod 1 and the second rod 2 of the split lock rod are smaller than the cross-section of the square rod. The intersection of the square cross-section and the round cross-section is transitioned with a fillet of R0.5 - R1 to ensure the strength at the intersection.

[0035] The detection port of the split lock rod is a square port structure, and the adjustment port is a trapezoidal port structure; the detection port and the adjustment port are at both ends of the square rod.

[0036] The dimension of the adjustment port of the first rod 1 and the second rod 2 of the split lock rod along the length direction is larger than the dimension of the detection port along the length direction.

[0037] Embodiment 2

[0038] As Figure 10As shown in the figure, the present invention relates to a split motion detection rod and method for a conversion device, characterized in that it includes: a split motion detection control unit 18, a split motion locking rod 15, and a split motion indicating rod 16. The split motion detection control unit 18 is installed outside the switch 17, and the split motion locking rod 15 and the split motion indicating rod 16 are respectively installed in the split motion detection control unit 18 at different traction points of the switch. The split motion locking rod 15 and the split motion indicating rod 16 are vertically installed and fixed between the two switch points of the switch 17 through the split motion detection control unit 18. The split motion locking rod 15 and the split motion indicating rod 16 respectively include a first rod, a second rod, and a joint. There are notches or bosses on the first rod and the second rod, and the close contact state of the switch point and the stock rail is obtained through the notches or bosses on the first rod and the second rod and the split motion indicating rod 16, and information on whether the contact is connected or disconnected is given.

[0039] As Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, the split motion indicating rod 16 includes: a first rod 1, a second rod 2, and a joint iron 3 of the split motion indicating rod. The first rod 1 and the second rod 2 of the split motion indicating rod 16 have the same structure; the middle parts of the first rod 1 and the second rod 2 of the split motion indicating rod are square rod structures, and each has a detection port and an adjustment port. The first rod 1 and the second rod 2 of the split motion indicating rod are round rods with threaded mounting holes at both ends; the first rod 1 and the second rod 2 of the split motion indicating rod are parallel in opposite directions so that the square rod parts are aligned and combined, and insulating tubes 4 are respectively sleeved on their ends.

[0040] As Figure 8 shown, there are two joint irons 3, which are respectively connected to the first rod 1 and the second rod 2 of the split motion indicating rod; the joint iron 3 is a U-shaped groove structure with a bend. The U-shaped groove has two mounting holes, and the bend has one mounting hole. The two mounting holes of the U-shaped groove and the one mounting hole of the bend are perpendicular. The U-shaped grooves of the two joint irons 3 are respectively sleeved on the insulating tubes 4 sleeved in the same direction on the first rod 1 and the second rod 2 of the split motion indicating rod, and the two joint irons 3 and the first rod 1 and the second rod 2 of the split motion indicating rod are connected by lock washers 6, backing plates 7, and bolts 8; each bend of the joint iron 3 has ears parallel up and down, and the mounting hole is in the ears parallel up and down, and is connected up and down by bolts. After the first rod 1 and the second rod 2 of the split motion indicating rod are connected in parallel, the first rod adjustment port 9 of the first rod 1 of the split motion indicating rod is aligned with the second rod detection port 11 of the second rod 2 of the split motion indicating rod, and the first rod detection port 10 of the first rod 1 is aligned with the second rod adjustment port 12 of the second rod 2.

[0041] The diameters of the round rods of the first rod member 1 and the second rod member 2 of the split motion indicating rod are smaller than the cross-section of the square rod, and the intersection of the square cross-section and the round cross-section is transitioned with a fillet of R0.5 - R1 to ensure the strength at the intersection.

[0042] As Figure 5 ,Figure 6 , Figure 7 and Figure 9 As shown in Figure 6 , Figure 7 and Figure 9 , the first rod and the second rod of the split-actuating indicating rod each have an elongated notch 14 on the square side arm, and there is an inspection block 13 in each elongated notch 14; there are detection ports on the inspection block 13, specifically see the first rod detection port 10 and the second rod detection port 11.

[0043] The detection port of the split-actuating indicating rod is a square port, and the adjustment port is of a trapezoidal port structure; the adjustment port and the detection port are at both ends of the square rod.

[0044] The dimension of the adjustment port of the first rod 1 and the second rod 2 of the split-actuating indicating rod in the length direction is greater than the dimension of the detection port in the length direction.

[0045] The split-actuating detection rod is usually composed of two rods and other accessory parts. It can be divided into a split-actuating locking rod and a split-actuating indicating rod according to different structures. The two rods of the split-actuating detection rod are not connected to each other. When in use, the joint parts of the two rods are respectively connected to the straight switch rail and the curved switch rail of the switch point through an external installation device rod.

[0046] When in use, the detection rod can be reversed according to the following steps:

[0047] 1. First, lift the lock washer 6;

[0048] 2. Then loosen the bolt 8;

[0049] 3. Then pull out the joint iron 3, insulating tube 4, insulating plate 5, and backing plate 7 installed on the first rod 1 and the second rod 2 from the rod;

[0050] 4. Install the joint iron 3, insulating tube 4, insulating plate 5, backing plate 7, bolt 8, and lock washer 6 at the other ends of the rods 1 and 2;

[0051] 5. Finally, use the lock washer 6 to prevent loosening after tightening the bolt 8.

[0052] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A transfer detection rod for a conversion device, characterized in that: Including: A split motion detection and control unit (18), a split motion locking rod (15) and a split motion indicating rod (16). The split motion detection and control unit (18) is installed outside the switch (17). The split motion locking rod (15) and the split motion indicating rod (16) are vertically installed and fixed by the split motion detection and control unit (18) between the two switch points of the switch (17). The split motion locking rod (15) and the split motion indicating rod (16) respectively include a first rod (1), a second rod (2) and a joint iron (3). There are notches or bosses on the first rod (1) and the second rod (2). The close contact state of the switch point and the stock rail is obtained through the notches or bosses on the first rod (1) and the second rod (2) and the split motion indicating rod (16), and information on whether the contact is closed or opened is given. The split motion locking rod (15) includes: the first rod (1) and the second rod (2) of the split motion locking rod and the joint iron (3). The structures of the first rod (1) and the second rod (2) of the split motion locking rod are the same. The middle parts of the first rod (1) and the second rod (2) of the split motion locking rod are square rod structures, and each has a detection port and an adjustment port. The first rod (1) and the second rod (2) of the split motion locking rod are round rods with threaded mounting holes at both ends. The first rod (1) and the second rod (2) of the split motion locking rod are parallel in opposite directions with the square rod parts aligned and combined, and insulating tubes (4) are respectively sleeved on their ends. There are two joint irons (3), which are respectively connected to the first rod (1) and the second rod (2) of the split motion indicating rod. The joint iron (3) is a U-shaped groove structure with elbows. The U-shaped groove has two mounting holes, and the elbow has one mounting hole. The two mounting holes of the U-shaped groove and the one mounting hole of the elbow are perpendicular. The U-shaped grooves of the two joint irons (3) are respectively sleeved on the insulating tubes (4) sleeved on the first rod (1) and the second rod (2) of the split motion indicating rod in the same direction. The two joint irons (3) and the first rod (1) and the second rod (2) of the split motion indicating rod are connected by lock washers (6), backing plates (7) and bolts (8). Each elbow of the joint iron (3) has flat ears up and down, and the mounting hole is in the ears parallel up and down and is connected up and down by bolts. After the first rod (1) and the second rod (2) of the split motion indicating rod are connected in parallel, the first rod adjustment port (9) of the first rod (1) of the split motion indicating rod is aligned with the second rod detection port (11) of the second rod (2), and the first rod detection port (10) of the first rod (1) of the split motion indicating rod is aligned with the second rod adjustment port (12) of the second rod (2). The diameters of the round rods of the first rod member (1) and the second rod member (2) of the split motion indicating rod are smaller than the cross-section of the square rod. The intersection of the square cross-section and the round cross-section is transitioned with a fillet of R0.5-R1 to ensure the strength at the intersection.

2. The transfer detection rod for a conversion device according to claim 1, characterized in that: There are two joint irons (3), which are respectively connected to the first rod (1) and the second rod (2) of the split locking rod; the joint iron (3) is a U-shaped groove structure with an elbow, the U-shaped groove has two mounting holes, the elbow has one mounting hole, the two mounting holes of the U-shaped groove and the one mounting hole of the elbow are perpendicular. The U-shaped grooves of the two joint irons (3) are respectively sleeved on the insulating tubes (4) sleeved in the same direction on the first rod (1) and the second rod (2) of the split locking rod, and the two joint irons (3) and the first rod (1) and the second rod (2) of the split locking rod are connected by lock washers (6), backing plates (7), and bolts (8); the elbow of each joint iron (3) has flat ears on the upper and lower sides, and the mounting hole is in the ears parallel to each other on the upper and lower sides, and is connected up and down by bolts. After the first rod (1) and the second rod (2) of the split locking rod are connected in parallel, the first rod adjustment port (9) of the first rod (1) of the split locking rod and the second rod detection port (11) of the second rod (2) are aligned, and the first rod detection port (10) of the first rod (1) of the split locking rod and the second rod adjustment port (12) of the second rod (2) are aligned.

3. The transfer detection rod for a conversion device according to claim 1, characterized in that: The detection port is a square port structure, and the adjustment port is a trapezoidal port structure; the detection port and the adjustment port are at both ends of the square rod.

4. The transfer detection rod for a conversion device according to claim 1, characterized in that: The dimension of the adjustment port of the first rod (1) and the second rod (2) of the split locking rod along the length direction is larger than the dimension of the detection port along the length direction.

5. The transfer detection rod for a conversion device according to claim 1, characterized in that: The split indicating rod (16) described includes: the first rod (1) and the second rod (2) of the split indicating rod and the joint iron (3). The structures of the first rod (1) and the second rod (2) of the split indicating rod are the same. The middle parts of the first rod (1) and the second rod (2) of the split indicating rod are square rod structures, and each has a detection port and an adjustment port. The first rod (1) and the second rod (2) of the split indicating rod are round rods with threaded mounting holes at both ends; the first rod (1) and the second rod (2) of the split indicating rod are parallel in opposite directions to align and merge the square rod parts, and their ends are respectively sleeved with insulating tubes (4).

6. The transfer detection rod for a conversion device according to claim 1, characterized in that: The first rod (1) and the second rod (2) of the split indicating rod each have a slender notch (14) on the square side arm, and each slender notch (14) has an inspection block (13); the inspection block (13) has a detection port, the first rod detection port (10) and the second rod detection port (11). The detection port is a square port, and the adjustment port is a trapezoidal port structure. The adjustment port and the detection port are at both ends of the square rod; the dimension of the adjustment port of the first rod (1) and the second rod (2) of the split indicating rod along the length direction is larger than the dimension of the detection port along the length direction.

7. A method for a transfer detection rod of a conversion device, characterized in that: Including: The first rod (1) and the second rod (2) of the split locking rod (15) and the split indicating rod (16), and the joint iron (3). The middle parts of the first rod (1) and the second rod (2) are square rod structures, and each has a detection port and an adjustment port. The first rod (1) and the second rod (2) are round rods with threaded mounting holes at both ends. The first rod (1) and the second rod (2) are parallel in opposite directions to align and merge the square rod parts, and insulating tubes (4) are respectively sleeved on their ends. There are two joint irons (3), which are respectively connected to the first rod (1) and the second rod (2). The joint iron (3) is a U-shaped groove structure with an elbow. The U-shaped groove has two mounting holes, and the elbow has one mounting hole. The two mounting holes of the U-shaped groove and the one mounting hole of the elbow are perpendicular. The U-shaped grooves of the two joint irons (3) are respectively sleeved on the insulating tubes (4) sleeved in the same direction on the first rod (1) and the second rod (2), and the two joint irons (3) and the first rod (1) and the second rod (2) are connected by lock washers (6), backing plates (7), and bolts (8). Each elbow of the joint iron (3) has flat ears on the upper and lower sides, and the mounting hole is in the ears parallel to the upper and lower sides and is connected by bolts up and down. After the first rod (1) and the second rod (2) are connected in parallel, the first rod adjustment port (9) of the first rod (1) and the second rod detection port (11) of the second rod (2) form a through port, and the first rod detection port (10) of the first rod (1) and the second rod adjustment port (12) of the second rod (2) form a through port. When in use, the detection rod can be reversed according to the following steps: (1) First, lift up the lock washer (6); (2) Then loosen the bolt (8); (3) Then pull out the joint iron (3), insulating tube (4), insulating plate (5), and backing plate (7) mounted on the first rod (1) and the second rod (2) from the rod; (4) Install the joint iron (3), insulating tube (4), insulating plate (5), backing plate (7), bolt (8), and lock washer (6) at the other ends of the first rod (1) and the second rod (2); (5) Finally, tighten the bolt (8) and use the lock washer (6) to prevent loosening.

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