Linkage detection rod and method for converting head adjustment travel

Abstract

The application belongs to a linkage detection rod and method for adjusting the stroke of a switching device head, characterized by comprising: a linkage detection control unit (20), a linkage locking rod (17) and a linkage indicating rod (18), the linkage detection control unit (20) is installed outside a turnout (19), the linkage locking rod (17) and the linkage indicating rod (18) are respectively installed in the linkage detection control unit (20) at different traction points of the turnout (19); and the linkage locking rod (17) and the linkage indicating rod (18) are vertically installed and fixed in the linkage detection control unit (20) between two points of the turnout (19). The linkage locking rod and method for adjusting the stroke of the switching device head have good structure and convenient maintenance.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of railway turnout conversion equipment, in particular to a linkage detection rod and method for adjusting the stroke of the head of the conversion equipment, which is suitable for a switch machine or a tightness inspector, and is used to check the state of the switch tongue. BACKGROUND

[0002] After the completion of railway turnout conversion, there are strict requirements for the tightness of the switch tongue and the basic rail to ensure the safety of train operation; both the switch machine and the tightness inspector have the function of detecting the tightness of the switch tongue and the basic rail. The currently used switch machine and tightness inspector basically connect the detection rod with the switch tongue, set detection ports (notches or protrusions) at appropriate positions of the detection rod, when the detection ports (notches or protrusions) of the detection rod move to the position where the switch tongue and the basic rail meet the tightness requirements in the switch machine or the tightness inspector, the mechanism in the switch machine or the tightness inspector acts to connect the contact points; when the detection ports (notches or protrusions) of the detection rod are not in the designed position, the contact points in the switch machine or the tightness inspector cannot be connected. The linkage detection rod is usually composed of two rods and other accessory parts, and can be divided into linkage locking rods and linkage indicating rods according to different structures. The linkage detection rod is composed of two rods connected together, and is provided with an adjusting mechanism, which can be adjusted within a certain range to adjust the stroke, and the two rods are connected to the switch tongue at the same time. Due to the reasons such as the manufacture and installation of the turnout and the change of the detection position, the stroke of the detection rod of the switch machine and the tightness inspector often needs to be adjusted. SUMMARY

[0003] The purpose of the present application is to provide a linkage detection rod and method for adjusting the stroke of the head of the conversion equipment, which has good structure and is convenient to maintain.

[0004] To solve the above problems, the technical scheme of the present application is to provide a linkage detection rod and method for adjusting the stroke of the head of the conversion equipment, characterized by: comprising a linkage detection control unit, a linkage locking rod and a linkage indicating rod, the linkage detection control unit is installed on the outside of the turnout, the linkage locking rod and the linkage indicating rod are respectively installed in the linkage detection control unit at different traction points of the turnout, and the linkage locking rod and the linkage indicating rod are vertically installed and fixed in the linkage detection control unit between the two switch tongues of the turnout, the linkage locking rod and the linkage indicating rod respectively comprise a first rod and a second rod and a joint, and there are notches or protrusions on the first rod and the second rod, the tightness of the switch tongue and the basic rail is obtained through the notches or protrusions on the first rod and the second rod and the linkage indicating rod, and information of the connection or disconnection of the contact points is given.

[0005] The linkage locking rod comprises a first rod and a second rod of the locking rod, a joint, and a middle part of the first rod and the second rod of the locking rod is a square rod structure and has two detection ports, one end of the first rod and the second rod of the locking rod has an externally-threaded round rod, and the other end of the first rod and the second rod of the locking rod has a round rod with a threaded mounting hole; the joint comprises two parallel sleeve holes, a first parallel sleeve hole and a second parallel sleeve hole, the first parallel sleeve hole is connected with the externally-threaded round rod of the first rod of the locking rod through a nut and a threaded round rod, and the second parallel sleeve hole is connected with the round rod with the threaded mounting hole of the second rod, the first parallel sleeve hole is a double-axle sleeve structure with double notches at one end, the first rod and the second rod of the locking rod are connected at both end heads through the joint, and a square rod part is tightly connected with a parallel rod structure.

[0006] The first rod and the second rod of the locking rod have one detection port and one adjusting port on the length of the square rod respectively, which are a first rod adjusting port and a first rod detection port of the locking rod, a second rod detection port and a second rod adjusting port of the locking rod; the first rod adjusting port and the second rod detection port are coincident, the first rod detection port and the second rod adjusting port of the locking rod are coincident, and the coincident part of the first rod adjusting port and the second rod detection port of the locking rod is located at the end of the joint.

[0007] The first parallel sleeve hole with double notches has two notches in the length direction, the externally-threaded round rod of the first rod of the locking rod passes through an adjusting nut in the first notch, a non-dowel sleeve, and is connected with an elastic gasket and a locking nut and a thin nut outside the second notch.

[0008] The round rod with the threaded mounting hole of the second rod of the locking rod is inserted into the sleeve of the joint, the position with the threaded mounting hole is corresponded with the external mounting hole of the joint, and a fixing bolt is fastened through the external mounting hole of the joint and the threaded mounting hole.

[0009] The non-dowel sleeve of the linkage indicating rod and the linkage locking rod is a flange round ring with an internal hole and no thread, a convex tooth of the flange round ring is matched with a recess of the adjusting nut, the locking nut, the thin nut and the elastic gasket are pressed against the non-dowel sleeve, so that the rotation of the adjusting nut is limited.

[0010] The linkage indicating rod comprises a first rod and a second rod of the indicating rod, a joint, a middle part of the first rod and the second rod of the indicating rod is a square rod structure and has two detection ports, one end of the first rod and the second rod of the indicating rod has an externally-threaded round rod, and the other end of the first rod and the second rod of the indicating rod has a round rod with a threaded mounting hole; the joint comprises two parallel sleeve holes, a first parallel sleeve hole and a second parallel sleeve hole, the first parallel sleeve hole is connected with the externally-threaded round rod of the first rod of the indicating rod through a nut and a threaded round rod, and the second parallel sleeve hole is connected with the round rod with the threaded mounting hole of the second rod of the indicating rod, the first parallel sleeve hole is a double-axle sleeve structure with double notches at one end, the first rod and the second rod of the indicating rod are connected at both end heads through the joint, and a square rod part is tightly connected with a parallel rod structure.

[0011] The first rod and the second rod of the indicating rod have one detecting port and one adjusting port on the left and right sides of the square rod length, respectively, which are the first rod adjusting port and the first rod detecting port of the indicating rod, the second rod detecting port and the second rod adjusting port of the indicating rod; the first rod adjusting port and the second rod detecting port of the indicating rod coincide, the first rod detecting port and the second rod adjusting port of the indicating rod coincide, and the coinciding port of the first rod adjusting port and the second rod detecting port of the indicating rod is located at the joint end.

[0012] The first rod and the second rod of the indicating rod have the same structure, and the first rod detecting port and the second rod detecting port of the indicating rod have an elongated strip notch on the side close to the threaded mounting hole of the circular rod, which is used for mounting the inspection block; after the first rod and the second rod of the indicating rod are connected in parallel, the elongated strip notch is between the first rod adjusting port and the second rod detecting port of the indicating rod and between the first rod detecting port and the second rod adjusting port of the indicating rod.

[0013] The first parallel sleeve hole with double notches in the linkage indicating rod and the linkage locking rod has two notches in the length direction, the outer thread of the first rod passes through the adjusting nut in the first notch, the non-detonating shaft sleeve to the second notch, and is connected through the elastic washer and the locking nut and the thin nut.

[0014] The circular rod with a threaded mounting hole of the second rod is inserted into the shaft sleeve of the joint, so that the orientation of the threaded mounting hole corresponds to the outer mounting hole of the joint, and the fixing bolt is fastened through the outer mounting hole of the joint and the threaded mounting hole.

[0015] The joint in the linkage indicating rod and the linkage locking rod has a bent short rod, which is bent towards the notch direction of the first rod.

[0016] The advantages of the present application are: the two independent first rod 1 and second rod 2 in the linkage indicating rod 18 and the linkage locking rod 17 are connected together through the joint 3, which can realize synchronous action, the non-detonating shaft sleeve 5 is a flange circular ring with an inner hole without threads, and has two protrusions on the contact end surface with the adjusting nut 4; the adjusting nut 4 is a nut with two grooves, and the grooves are located on the end surface in contact with the limiting device, and the adjusting nut 4 and the non-detonating shaft sleeve 5 limit the two movement directions of each rod, so that the two rod parts remain as a whole;

[0017] When the detection rod stroke needs to be adjusted, the locking nut 6 and the thin nut 7 can be loosened, the non-detonating shaft sleeve 5 can be pulled out, and the first rod 1 can be moved relative to the second rod 2 by rotating the adjusting nut 4. The relative position of the detecting ports on the two rod parts changes, and the stroke of the entire detection rod on the switch machine and the close inspection device can be changed;

[0018] When the switch machine and the close inspection need to be reversed, the joint 3, the locking nut 6, the thin nut 7, the adjusting nut 4, the non-buckle shaft sleeve 5 and the auxiliary parts thereof are disassembled from the rod side and mounted on the other side. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the structural schematic diagram of embodiment 1 of the present application (linkage locking rod);

[0020] Figure 2 is the three-dimensional structural schematic diagram of embodiment 1;

[0021] Figure 3 is the structural schematic diagram of the first rod and the second rod of embodiment 1;

[0022] Figure 4 is the structural schematic diagram of embodiment 2 of the present application (linkage indicating rod);

[0023] Figure 5 is the three-dimensional structural schematic diagram of embodiment 2;

[0024] Figure 6 is the structural schematic diagram of the first rod and the second rod of embodiment 2;

[0025] Figure 7 is the joint mounting structure schematic diagram of embodiment 1 and embodiment 2;

[0026] Figure 8 is the joint structure schematic diagram of embodiment 1 and embodiment 2;

[0027] Figure 9 is the system schematic diagram of embodiment 1 and embodiment 2.

[0028] In the figure: 1, first rod; 2, second rod; 3, joint; 4, adjusting nut; 5, non-buckle shaft sleeve; 6, locking nut; 7, thin nut; 8, fixing bolt; 9, first rod adjusting port; 10, first rod detection port; 11, second rod detection port; 12, second rod adjusting port; 13, elastic gasket; 14, elongated strip gap; 15, first parallel sleeve hole; 16, second parallel sleeve hole; 17, linkage locking rod; 18, linkage indicating rod; 19, turnout; 20, linkage detection control unit. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects taken by the present application to achieve the predetermined purpose, the specific embodiments, structural features and effects of the present application are described in detail as follows in combination with the drawings and examples. Embodiment 1

[0030] As Figure 9As shown in the drawings, the present application relates to a linkage detection rod and method for adjusting the travel of a switching device head, characterized by: a linkage detection control unit 20, a linkage locking rod 17, and a linkage indicating rod 18, the linkage detection control unit 20 is installed outside the turnout 19, the linkage locking rod 17 and the linkage indicating rod 18 are respectively installed in the linkage detection control unit 20 at different traction points of the turnout 19, the linkage locking rod 17 and the linkage indicating rod 18 are vertically installed and fixed between the two points of the turnout 19 by the linkage detection control unit 20, the linkage locking rod 17 and the linkage indicating rod 18 respectively include a first rod 1 and a second rod 2 and a joint 3, the first rod 1 and the second rod 2 have notches or bosses respectively, the close state of the point rail and the basic rail is obtained through the notches or bosses on the first rod 1 and the second rod 2, and the contact or disconnection information of the joint is given.

[0031] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown in the drawings, the linkage locking rod 17 includes: a first rod 1 and a second rod 2 of the locking rod and a joint 3, the middle part of the first rod 1 and the second rod 2 of the locking rod is a square rod structure and has two detection ports, one end of the first rod 1 and the second rod 2 of the locking rod has an externally threaded round rod, and the other end of the first rod 1 and the second rod 2 of the locking rod has a threaded mounting hole round rod; the joint 3 includes two parallel sleeve holes, a first parallel sleeve hole 15 and a second parallel sleeve hole 16, the first parallel sleeve hole 15 is connected with the externally threaded round rod of the first rod 1 of the locking rod through a nut and a threaded round rod; the second parallel sleeve hole 16 is connected with the threaded mounting hole round rod of the second rod 2, the first parallel sleeve hole 15 is a double shaft sleeve structure with double notches at one end, the first rod 1 and the second rod 2 of the locking rod are connected at their ends through the joint 3, forming a parallel rod structure tightly fitted at the square rod part.

[0032] The square rod length of the first rod 1 and the second rod 2 of the locking rod has one detection port and one adjustment port on the left and right respectively, which are the first rod adjustment port 9 and the first rod detection port 10 of the locking rod, the second rod detection port 11 and the second rod adjustment port 12 of the locking rod; the first rod adjustment port 9 and the second rod detection port 11 coincide, the first rod detection port 10 and the second rod adjustment port 12 of the locking rod coincide, and the coinciding port of the first rod adjustment port 9 and the second rod detection port 11 is located at the end of the joint 3.

[0033] The first parallel sleeve hole 15 with double notches has two notches in the length direction, the externally threaded round rod of the first rod 1 of the locking rod passes through the adjustment nut 4, the undetached shaft sleeve 5 in the first notch, and is connected through the elastic washer 13 and the locking nut 6, the thin nut 7 outside the second notch.

[0034] The second rod 2 of the locking rod is a round rod with a threaded mounting hole inserted into the sleeve of the joint 3 so that the orientation of the threaded mounting hole corresponds to the external mounting hole of the joint 3, and the fixing bolt 8 is fastened through the external mounting hole of the joint 3 and the thread of the threaded mounting hole.

[0035] The joint 3 has a bent short rod, which is bent toward the notch of the first rod 1 of the locking rod.

[0036] The buckleless sleeve 5 is a flange ring with an unthreaded inner hole. The raised teeth of the flange ring cooperate with the groove of the adjusting nut 4. The locking nut 6, thin nut 7 and elastic gasket 13 press the buckleless sleeve 5, thereby limiting the rotation of the adjusting nut 4.

[0037] Adjustment holes can be added to the surface of the adjustment nut 4 to facilitate on-site adjustment. Example 2

[0038] like Figure 9 As shown, the present invention relates to a linkage detection rod and method for adjusting the stroke of a switching device head, characterized by comprising: a linkage detection control unit 20, a linkage locking rod 17, and a linkage indicating rod 18. The linkage detection control unit 20 is installed on the outside of a switch 19, and the linkage locking rod 17 and the linkage indicating rod 18 are respectively installed in the linkage detection control unit 20 at different traction points of the switch 19. The linkage locking rod 17 and the linkage indicating rod 18 are vertically fixed between the two point rails of the switch 19 through the linkage detection control unit 20. The linkage locking rod 17 and the linkage indicating rod 18 respectively include a first rod 1, a second rod 2, and a joint 3. The first rod 1 and the second rod 2 respectively have notches or bosses. The notches or bosses on the first rod 1 and the second rod 2 are used to detect the close contact state between the point rail and the base rail, and provide information on whether the contact is connected or disconnected.

[0039] like Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the linkage indicating rod 18 includes: a first rod 1 and a second rod 2 of the indicating rod and a joint 3. The middle part of the first rod 1 and the second rod 2 of the indicating rod is a square rod structure and has two detection ports. One end of the first rod 1 and the second rod 2 of the indicating rod is a round rod with an external thread, and the other end of the first rod 1 and the second rod 2 of the indicating rod is a round rod with a threaded mounting hole; the joint 3 includes two parallel sleeves, a first parallel sleeve 15 and a second parallel sleeve 16. The first parallel sleeve 15 is connected to the round rod with an external thread of the first rod 1 of the indicating rod through a nut and a threaded round rod; the second parallel sleeve 16 is connected to the round rod with a threaded mounting hole of the second rod 2 of the indicating rod. The first parallel sleeve 15 is a double-sleeve structure with a double notch at one end. The first rod 1 and the second rod 2 of the indicating rod are connected at their ends through the joint 3 to form a parallel rod structure with the square rod parts tightly attached.

[0040] The first rod 1 and the second rod 2 of the representing rod have a detection port and an adjustment port on the left and right sides of the square rod length, which are the first rod adjustment port 9 and the first rod detection port 10 of the representing rod, and the second rod detection port 11 and the second rod adjustment port 12 of the representing rod; the first rod adjustment port 9 and the second rod detection port 11 of the representing rod coincide with each other, and the first rod detection port 10 and the second rod adjustment port 12 of the representing rod coincide with each other, and the overlapping port of the first rod adjustment port 9 and the second rod detection port 11 of the representing rod is located at the end of the joint 3.

[0041] The first parallel sleeve hole 15 with double notches has two notches in the length direction, indicating that the round rod with the external thread of the first rod 1 passes through the adjusting nut 4 and the buckleless sleeve 5 in the first notch to the outside of the second notch and is connected by the elastic gasket 13, the locking nut 6 and the thin nut 7.

[0042] The second rod 2 of the rod is a round rod with a threaded mounting hole inserted into the sleeve of the joint 3 so that the orientation of the threaded mounting hole corresponds to the external mounting hole of the joint 3, and the fixing bolt 8 is fastened through the external mounting hole of the joint 3 with the thread of the threaded mounting hole.

[0043] The joint 3 has a bent short rod, which is bent toward the notch of the first rod 1 representing the rod.

[0044] The buckleless sleeve 5 is a flange ring with an unthreaded inner hole. The raised teeth of the flange ring cooperate with the groove of the adjusting nut 4. The locking nut 6, thin nut 7 and elastic gasket 13 press the buckleless sleeve 5, thereby limiting the rotation of the adjusting nut 4.

[0045] Adjustment holes may be added to the surface of the adjustment nut 4 to facilitate on-site adjustment.

[0046] like Figure 6 As shown, the first and second rods 1, 2 of the display rod have identical structures. A slender notch 14 is provided on one side of the first and second rod inspection openings 10, 11, near the round rod with the threaded mounting holes, for mounting an inspection block. When the first and second rods 1, 2 are connected in parallel, the slender notch 14 is located between the first and second rod adjustment openings 9, 11, and the first and second rod inspection openings 10, 12.

[0047] When using Example 1 and Example 2, the stroke of the detection rod can be adjusted by following the steps below:

[0048] 1. Loosen the elastic washer 13, lock nut 6 and thin nut 7 in sequence;

[0049] 2. Pull out the threadless sleeve 5 from the joint 3 so that the teeth of the threadless sleeve 5 are disengaged from the groove of the adjusting nut 4;

[0050] 3. Adjust the position of the first rod 1 relative to the second rod 2 by screwing the adjusting nut 4, and then adjust the relative position of the two rods until the proper stroke is achieved;

[0051] 4. Insert the toothed sleeve 5 into the groove of the adjusting nut 4;

[0052] 5. Tighten the locking nut 6 and the thin nut 7 in sequence;

[0053] When using the embodiment 1 and the embodiment 2, the detection rod can be reversed according to the following steps:

[0054] 1. Loosen the elastic washer 13, the thin nut 7 and the locking nut 6 in sequence;

[0055] 2. Take out the toothed sleeve 5 from the joint 3;

[0056] 3. Screw the adjusting nut 4 until the adjusting nut 4 is detached from the first rod 1;

[0057] 4. Take out the fixing bolt 8 and its accessories from the second rod 2;

[0058] 5. Install the joint 3 into the end of the second rod 2 with the threaded hole, and install the fixing bolt 8 and its accessories;

[0059] 6. Insert the first rod 1 with the external thread into the joint 3, and then install the adjusting nut 4 and the toothed sleeve 5 in sequence, and adjust the proper stroke;

[0060] 7. Install the spring washer into the first rod 1, and then tighten the locking nut 6 and the thin nut 7.

[0061] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application should not be limited to these descriptions. For ordinary skilled in the art to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, and all of them should be considered as falling within the protection scope of the present application.

Claims

1. A linkage detection rod for adjusting the stroke of the head of a conversion device, characterized by: include: A linkage detection control unit (20), a linkage locking rod (17) and a linkage indicating rod (18), wherein the linkage detection control unit (20) is installed on the outer side of the turnout (19), and the linkage locking rod (17) and the linkage indicating rod (18) are respectively installed in the linkage detection control unit (20) at different traction points of the turnout (19); the linkage locking rod (17) and the linkage indicating rod (18) are vertically fixed between the two point rails of the turnout (19) through the linkage detection control unit (20); the linkage locking rod (17) and the linkage indicating rod (18) respectively include a first rod (1) and a second rod (2) and a joint (3); a notch or a boss is respectively provided on the first rod (1) and the second rod (2); the close contact state of the point rail and the base rail is obtained through the notch or the boss on the first rod (1) and the second rod (2), and information on whether the contact is connected or disconnected is given; The linkage locking rod (17) comprises: a first rod (1) and a second rod (2) of the locking rod and a joint (3); the first rod (1) and the second rod (2) of the locking rod have the same structure; the middle part of the first rod (1) and the second rod (2) of the locking rod is a square rod structure and has two detection ports; one end of the first rod (1) and the second rod (2) of the locking rod has a round rod with an external thread, and the other end of the first rod (1) and the second rod (2) of the locking rod has a round rod with a threaded mounting hole; the joint (3) comprises two parallel rods. The first parallel hole (15) and the second parallel hole (16) are connected to the first rod (1) of the locking rod through a nut and a threaded round rod. The second parallel hole (16) is connected to the second rod (2) of the locking rod through a threaded mounting hole. The first parallel hole (15) is a double-sleeve structure with a double notch at one end. The first rod (1) and the second rod (2) of the locking rod are connected at their ends through a joint (3) to form a parallel rod structure with square rod parts tightly attached. The first rod (1) and the second rod (2) of the locking rod have a detection port and an adjustment port on the left and right sides of the square rod length, which are the first rod adjustment port (9) and the first rod detection port (10) of the locking rod, and the second rod detection port (11) and the second rod adjustment port (12) of the locking rod; the first rod adjustment port (9) and the second rod detection port (11) are overlapped, the first rod detection port (10) and the second rod adjustment port (12) of the locking rod are overlapped, and the overlapped port of the first rod adjustment port (9) and the second rod detection port (11) of the locking rod is located at the end of the joint (3); The joint (3) of the linkage locking rod (17) has a bent short rod, which is bent toward the notch of the first rod (1) of the locking rod; the first parallel sleeve hole (15) with double notches has two notches in the length direction, and the round rod with external thread of the first rod (1) of the locking rod passes through the adjustment nut (4) and the buckleless sleeve (5) in the first notch to the outside of the second notch and is connected through the elastic gasket (13) and the lock nut (6) and the thin nut (7); an adjustment hole is added on the surface of the adjustment nut (4) for easy adjustment; The second rod (2) of the locking rod is a round rod with a threaded mounting hole inserted into the shaft sleeve of the joint (3) so that the orientation of the threaded mounting hole corresponds to the external mounting hole of the joint (3), and the fixing bolt (8) is fastened to the thread of the threaded mounting hole through the external mounting hole of the joint (3); The buckleless sleeve (5) in the linkage indicating rod (18) and the linkage locking rod (17) is a flange ring with a non-threaded inner hole, the raised teeth of the flange ring cooperate with the groove of the adjustment nut (4), the locking nut (6) and the thin nut (7) and the elastic gasket (13) press the buckleless sleeve (5), thereby limiting the rotation of the adjustment nut (4); The linkage indicating rod (18) comprises: a first rod (1) and a second rod (2) of the indicating rod and a joint (3), wherein the middle part of the first rod (1) and the second rod (2) of the indicating rod is a square rod structure and has two detection ports, one end of the first rod (1) and the second rod (2) of the indicating rod is a round rod with an external thread, and the other end of the first rod (1) and the second rod (2) of the indicating rod is a round rod with a threaded mounting hole; the joint (3) comprises two parallel sleeve holes, a first parallel sleeve hole (15) and a second parallel sleeve hole (16), the first parallel sleeve hole (15) is connected to the round rod with an external thread of the first rod (1) of the indicating rod through a nut and a threaded round rod; the second parallel sleeve hole (16) is connected to the round rod with a threaded mounting hole of the second rod (2) of the indicating rod, the first parallel sleeve hole (15) is a double-sleeve structure with a double notch at one end, and the first rod (1) and the second rod (2) of the indicating rod are connected at their ends through the joint (3) to form a parallel rod structure with the square rod parts tightly attached; The first rod (1) and the second rod (2) of the rod are provided with a detection port and an adjustment port on the left and right sides of the length of the square rod, which are the first rod adjustment port (9) and the first rod detection port (10) of the rod, and the second rod detection port (11) and the second rod adjustment port (12) of the rod; the first rod adjustment port (9) and the second rod detection port (11) of the rod are overlapped, the first rod detection port (10) and the second rod adjustment port (12) of the rod are overlapped, and the overlapped port of the first rod adjustment port (9) and the second rod detection port (11) of the rod is located at the end of the joint (3); The linkage indicating rod (18) has a first parallel sleeve hole (15) with two notches in the length direction. The external threaded round rod of the first rod (1) of the indicating rod passes through the adjustment nut (4) and the buckleless sleeve (5) in the first notch to the outside of the second notch and is connected through the elastic gasket (13) and the lock nut (6) and the thin nut (7); the adjustment hole is added to the surface of the adjustment nut (4) for easy adjustment; the second rod (2) of the linkage indicating rod (18) has a round rod with a threaded mounting hole inserted into the sleeve of the joint (3), so that the orientation of the threaded mounting hole corresponds to the external mounting hole of the joint (3), and the fixing bolt (8) passes through the external mounting hole of the joint (3) and the threaded mounting hole. The thread of the hole is fastened; the joint (3) of the linkage indicating rod (18) has a bent short rod, which is bent in the direction of the notch of the first rod (1) of the indicating rod; the first rod (1) and the second rod (2) of the indicating rod have the same structure, and a slender notch (14) is provided on one side of the first rod detection port (10) and the second rod detection port (11) in the direction of the round rod with the threaded mounting hole, for installing the inspection block; after the first rod (1) and the second rod (2) of the indicating rod are connected in parallel, the slender notch (14) is between the first rod adjustment port (9) and the second rod detection port (11) of the indicating rod, and between the first rod detection port (10) and the second rod adjustment port (12) of the indicating rod.

2. A method for converting a linkage detection rod for adjusting the stroke of a head of a device, based on the linkage detection rod according to claim 1, characterized in that: The two independent first rods (1) and second rods (2) in the linkage indicating rod (18) and the linkage locking rod (17) are connected together through a joint (3) to achieve synchronous movement. The buckleless sleeve (5) is a flange ring with no thread on the inner hole, and has two raised limiters on the contact end face with the adjustment nut (4); the adjustment nut (4) has two grooves, and the grooves are located on the end face contacting the limit device. The adjustment nut (4) and the buckleless sleeve (5) respectively limit the two movement directions of each rod, so that the two rods are kept as a whole. When the stroke of the detection rod is to be adjusted, the locking nut (6) and the thin nut (7) are loosened, the buckleless sleeve (5) is pulled out, and the adjusting nut (4) is screwed to move the first rod (1) relative to the second rod (2); the relative positions of the detection ports on the two rods are changed, thereby changing the stroke of the entire detection rod in the switch machine and the close contact detector; When the switch machine and the close contact checker need to be reversed, the joint (3), the locking nut (6), the thin nut (7), the adjusting nut (4), the buckleless sleeve (5) and its accessory parts are removed from one side of the rod and installed on the other side.

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