Auxiliary checking device for gap of switch machine and switch machine

Abstract

The invention discloses an auxiliary checking device for a gap of a switch machine and the switch machine. The auxiliary checking device comprises a shifting mark window, a first vernier, a second vernier and a square head screw, a horizontally-distributed installation support is arranged in the middle of the bottom face of the shifting mark window in a forward protruding mode. The left end and the right end of the top of the installation support are fixedly connected with one end of a first vernier and one end of a second vernier through square head screws respectively. First bolt mounting through holes are respectively formed in the left end and the right end of the shifting mark window; the first vernier and the second vernier are symmetrically arranged left and right; the opposite ends of the first vernier and the second vernier are respectively provided with a horizontally distributed pointer; and the two pointers are positioned above the rod piece at the extending end of the locking rod of the switch machine. On the premise that a switch machine cover is not opened, an electric service worker can reflect the actual state of the notch by checking the relative position of the pointer of the displacement mark (namely the vernier) and the scribed line (namely the identification line) on the locking rod, and the labor efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of railway turnout switching equipment, and in particular to a switch gap auxiliary viewing device and a switch machine. Background Art

[0002] A switch machine is an important signal infrastructure equipment used to reliably convert the switch position, change the direction of switch opening, lock the switch point rail, and reflect the switch position.

[0003] The function of the switch machine is to switch and lock the point rail (heart rail), change the opening direction of the turnout, and reflect the position status of the point rail (heart rail) through the contact point. The switch machine is one of the important equipment to ensure the safety of railway transportation. If the switch machine fails to switch the turnout into place normally, it will affect the normal operation order of the train. In serious cases, it may cause a train collision or derailment. Therefore, the switch machine is an electric traction equipment for railway turnouts, and its working reliability is related to the safety of railway transportation.

[0004] For switch machines, the switch gap (i.e. the switch indication gap) is used to reflect the close contact status and position of the switch point rail (heart rail) and the base rail (wing rail). If the point rail and the base rail are not in close contact, serious consequences such as train derailment may occur. Therefore, regular inspection of the switch gap is of great significance and has always been an important part of maintenance for electrical workers. Therefore, it is necessary to regularly inspect the switch gap.

[0005] It should be noted that the switch machine notch refers to the groove on the locking rod of the switch machine for falling into the inspection column.

[0006] The switch machine includes two locking rods arranged in parallel, one of which has a notch (i.e., a groove) at the top right end, and the other has a notch at the top left end, and there is an inspection post above each of the two notches. When the switch is switched into place, an inspection post in the switch machine will fall into the notch of the locking rod below it. The task of checking the notch is: for the notch of the locking rod that has fallen into the inspection post, check the distance between one side edge of the notch on the locking rod and the edge of the inspection post that falls into it (i.e., the notch gap width, also called the notch width, the notch gap is the gap between the edge of the notch in the locking rod and the edge of the inspection post).

[0007] However, since the switch gap on the locking rod is located inside the device housing of the switch (the device housing includes a lower housing and a cover arranged on the top of the lower housing), in order to check the switch gap (i.e., the switch display gap), the electrician needs to open the cover of the switch to check it. Therefore, not only is the work efficiency low, the labor cost is increased, but also the labor intensity of the electrician is high.

[0008] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Summary of the invention

[0009] The purpose of the present invention is to provide a switch gap auxiliary viewing device and a switch machine in view of the technical defects in the prior art.

[0010] To this end, the present invention provides a switch machine gap auxiliary viewing device, which includes a shift mark window, a first cursor, a second cursor and a square head screw;

[0011] A horizontally distributed mounting bracket is provided in the middle of the bottom surface of the laterally distributed shift mark window so as to protrude forward;

[0012] The left and right ends of the mounting bracket are fixedly connected to one end of the first cursor and one end of the second cursor respectively through a square head screw;

[0013] The left and right ends of the shift mark window are respectively provided with first bolt installation through holes;

[0014] The first cursor and the second cursor are set symmetrically on the left and right;

[0015] The first cursor and the second cursor are respectively provided with a horizontally distributed pointer at the opposite ends thereof;

[0016] Two pointers are located above the extended end rod of the locking rod of the switch machine.

[0017] In addition, the present invention also provides a switch machine, which includes the switch machine gap auxiliary viewing device as described above, and a device housing of the switch machine;

[0018] The device housing of the switch machine is provided with transversely distributed locking rods;

[0019] The shift mark window is located above the extended end rod of the locking rod.

[0020] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a switch machine gap auxiliary viewing device and a switch machine, which have a scientific structural design and can reflect the actual state of the gap by allowing the electrician to check the relative position of the shift mark (i.e., cursor) pointer and the rod engraved line (i.e., identification line) on the locking rod without opening the switch machine cover. This can solve the problem of the gap being difficult to view to a large extent, reduce the labor intensity of on-site electricians, and improve labor efficiency.

[0021] The switch machine gap auxiliary viewing device provided by the present invention is a shift mark group used for the switch machine and is used for checking and calibrating the switch machine gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A schematic diagram of the three-dimensional structure of a switch gap auxiliary viewing device provided by the present invention;

[0023] Figure 2 A front view of a switch machine gap auxiliary viewing device provided by the present invention;

[0024] Figure 3 A top view of a switch machine gap auxiliary viewing device provided by the present invention;

[0025] Figure 4 A schematic structural diagram of a locking rod on a switch machine matched with a switch machine gap auxiliary viewing device provided by the present invention;

[0026] Figure 5 for Figure 4 A partial enlarged schematic diagram of a portion of the left end area of ​​the locking rod;

[0027] Figure 6 for Figure 4 A partial enlarged schematic diagram of a portion of the right end area of ​​the locking rod;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of a switch machine provided by the present invention, and is also a schematic diagram of the state of a switch machine gap auxiliary viewing device provided by the present invention being applied to the switch machine;

[0029] Figure 8 for Figure 8 A partial enlarged schematic diagram of

[0030] Fig. 9 The invention provides a switch machine gap auxiliary viewing device, and a top view of a switch machine with the machine cover opened;

[0031] Fig.10 The present invention provides a switch gap auxiliary viewing device, which is a schematic diagram of the local position relationship between a locking rod and a locking column in a switch machine used in the device. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] See also Figures 1 to 10 The present invention provides a switch gap auxiliary viewing device, which is a shift mark group for the switch machine, used for checking and calibrating the switch gap, and the device comprises: a shift mark window 1, a first cursor 2, a second cursor 3 and a square head screw 8;

[0037] A horizontally distributed mounting bracket 101 is provided at the middle position of the bottom surface of the laterally distributed shift mark window 1 to protrude forward;

[0038] The left and right ends of the mounting bracket 101 are fixedly connected to one end of the first cursor 2 and one end of the second cursor 3 by a square head screw 8 respectively;

[0039] The left and right ends of the shift mark window 1 are respectively provided with first bolt mounting through holes 103;

[0040] The first cursor 2 and the second cursor 3 are arranged symmetrically.

[0041] The first cursor 2 and the second cursor 3 are respectively provided with a horizontally distributed pointer 10 at the opposite ends thereof;

[0042] The two pointers 10 are located above (directly above) the protruding end rod of the locking rod 93 of the switch machine 9.

[0043] It should be noted that the shift scale window 1 is also located above the protruding end rod of the locking rod 93 of the switch machine 9.

[0044] In the present invention, specifically, the shift scale window 1 is arranged perpendicular to the horizontal plane.

[0045] In the present invention, specifically, the overall shapes of the first cursor 2 and the second cursor 3 are L-shaped;

[0046] In the present invention, specifically, the top surface height of the pointer 10 is lower than the bottom surface height of the mounting bracket 101.

[0047] In the present invention, specifically, both the first cursor 2 and the second cursor 3 include a vertical section 201 and a horizontal end 202;

[0048] At the tops of the two vertical sections 201, a horizontal section 202 is respectively arranged oppositely;

[0049] At the bottoms of the two vertical sections 201, a pointer 10 is respectively arranged in a back-to-back manner;

[0050] Specifically, the vertical section 201, the horizontal end 202 and the pointer 10 are integrally formed.

[0051] In the present invention, specifically, at the left and right ends of the mounting bracket 101, a long circular groove 102 longitudinally distributed is respectively vertically penetrated;

[0052] The first cursor 2 and the second cursor 3 are respectively vertically penetrated with a cursor through hole at a position corresponding to the long circular groove 102;

[0053] The square head screw 8 passes through the corresponding long circular groove 102 and the cursor through hole from bottom to top, and is threadedly fixedly connected with at least one fastening nut.

[0054] Specifically, the two long circular grooves 102 are symmetrically distributed left and right.

[0055] Specifically, the shape of the mounting bracket 101 is an inverted "凵" shape.

[0056] Specifically, the square head screw 8 passes through the corresponding long circular groove 102 and the cursor through hole from bottom to top, and is sequentially threadedly fixedly connected with the third nut 7 and the second nut 6.

[0057] Furthermore, a spring washer 4 is sleeved on the circumferential outer side of the part of the screw rod of the square head screw 8 between the bottom surface of the third nut 7 and the top surface of the mounting bracket 101.

[0058] It should be noted that, in the present invention, in specific implementation, the square head screw 8 is a small square head screw M4X16, the spring washer 4 is a standard spring washer, the second nut 6 is a non-metallic insert hexagonal locking nut M4, and the third nut 7 is a type 1 hexagonal nut M4.

[0059] That is to say, the upper part of the square head screw 8 has two nuts (the second nut 6 and the third nut 7), among which the nut close to the spring washer 4 is an ordinary type 1 hexagonal nut (i.e., the third nut 7), which plays a tightening role, and the other nut is a non-metallic insert hexagonal locking nut (i.e., the second nut 6), which plays a tightening and anti-loosening role.

[0060] In the present invention, in a specific implementation, a downwardly bent limit iron 104 is respectively provided at the left and right ends of the mounting bracket 101;

[0061] The two square head screws 8 are located between the two limit folding irons 104;

[0062] The opposite sides of the two limit folding irons 104 are respectively against (ie, in tight contact with) the nut at the bottom of each square head screw 8 .

[0063] It should be noted that, for the present invention, when the device of the present invention (i.e., the shift mark group) is installed on the switch machine, when the pointer 10 of the shift mark needs to be adjusted, the space at the lower square head screw 8 is small. When the upper nuts (the third nut 7 and the second nut 6) are tightened, the lower square head screw 8 will rotate, making it difficult to use the tightening tool. For this reason, the present invention is designed with downwardly bent limit folding irons 104 at both ends of the mounting bracket 101. The function of the limit folding irons 104 is to cooperate with the two limit folding irons 104 to abut against the nuts at the bottom of the two square head screws 8 (i.e., to be in tight contact with each other), thereby limiting the rotation of the lower square head screw 8.

[0064] In the present invention, in a specific implementation, the entirety of the switch machine gap auxiliary viewing device (i.e., the shift mark group) of the present invention is installed above the extended end rod of the locking rod 93 of the switch machine 9;

[0065] In specific implementation, the device housing of the switch machine 9 includes a lower housing 91 and a machine cover 92 arranged on the top of the lower housing;

[0066] A double-hole cover plate 94 is provided on one side outer wall of the lower housing 91;

[0067] The shift mark window 1 in the switch machine gap auxiliary viewing device (i.e., the shift mark set) of the present invention is fixed to the outer side of the double-hole cover plate 94 of the switch machine 9 by two first mounting bolts 95 (specifically, mounting bolts with sealing rings);

[0068] In specific implementation, the shift mark window 1 is located above the extended end rod of the locking rod 93;

[0069] The two pointers 10 on the first cursor 2 and the second cursor 3 are located above the protruding end rod of the locking rod 93 .

[0070] Furthermore, two first threaded holes are provided on the double-hole cover plate 94 of the switch machine 9;

[0071] The two first threaded holes on the double-hole cover plate 94 are arranged to correspond exactly to the two first bolt mounting through holes 103 on the shift mark window 1;

[0072] After the first mounting bolt 95 passes through the first bolt mounting through hole 103, it is threadedly fixedly connected with the first threaded hole on the double-hole cover plate 94 at the corresponding position;

[0073] In specific implementation, the locking rod 93 (i.e., the locking rod) of the switch machine 9 includes a first locking rod 931 and a second locking rod 932 arranged in parallel;

[0074] The first locking rod 931 and the second locking rod 932 transversely penetrate through the double-hole cover plate 94 on the lower housing 91 of the switch machine 9;

[0075] The extended ends of the first locking rod 931 and the second locking rod 932 (i.e., the extended end rods of the locking rod 93) are close to one end of the double-hole cover plate 94 of the switch machine 9;

[0076] A first notch 9310 (i.e., a groove) is provided on the non-extending end side of the top of the first locking rod 931 (i.e., at the end away from the double-hole cover plate 9);

[0077] A second notch 9210 (i.e., a groove) is provided on one side of the top protruding end of the second locking rod 932 (i.e., the end close to the double-hole cover plate 9);

[0078] It should be noted that, above the first notch 9310 and the second notch 9210, there is an original inspection post of the switch machine. When the turnout is switched to the right position, an inspection post in the switch machine will fall into the notch of the locking rod below it.

[0079] Furthermore, two identification lines 930 (i.e., engraved lines) are respectively provided on the first locking rod 931 and the second locking rod 932;

[0080] Furthermore, the two pointers 10 on the first cursor 2 and the second cursor 3 are located above the protruding end rod of the locking rod 93 (i.e., the rod at one end close to the double-hole cover plate 94), specifically, above the first locking rod 931 and the second locking rod 932, respectively.

[0081] In specific implementation, the pointers of the first cursor 2 and the second cursor 3 are respectively aligned with two identification lines 930 (i.e., engraved lines) on the first locking rod 931 and the second locking rod 932 of the locking rod 93 on one side of the double-hole cover plate 94 close to the switch machine 9.

[0082] In the present invention, in specific implementation, the switch machine gap auxiliary viewing device provided by the present invention can be specifically applied to the ZDJ9 dustproof and sealed switch machine produced by Tianjin Railway Signal Co., Ltd.

[0083] In order to more clearly understand the technical solution of the present invention, the working principle of the present invention is explained below.

[0084] For the present invention, see Figures 4 to 6 As shown, the first locking rod 931 and the second locking rod 932 of the locking rod 90 are respectively provided with identification lines 930 (i.e., engraved lines);

[0085] See also Figures 7 to 10 As shown, for a switch machine, after the adjustment of the fixed reverse position notch of the switch machine is completed, that is, when the switch machine is in the pulled-in or extended locked position, the locking column (i.e., the inspection column) on the original automatic opener of the switch machine falls into the straight mouth of the detection rod (i.e., the locking rod 90). At this time, adjust the pointers of the first cursor 2 and the second cursor 3, and align the pointers of the first cursor 2 and the second cursor 3 with the two identification lines 930 (i.e., the engraved lines) on the first locking rod 931 and the second locking rod 932 of the locking rod 93, respectively, on one side of the double-hole cover plate 94 close to the switch machine 9, for subsequent auxiliary inspection of the notch and correction of the notch.

[0086] It should be noted that, in order to adapt to on-site installation, the switch machine is divided into left-mounted and right-mounted. Figure 7 , Figure 8 , Fig. 9 For left installation, the rod member of the locking rod 93 (i.e., the protruding end rod member) protrudes from the right side; for right installation, on the contrary, the rod member of the locking rod 93 protrudes from the left side. The working principle of the switch machine is as follows: the motor in the switch machine outputs torque, which is transmitted through the gear screw in the switch machine. The push plate sleeve in the switch machine drives the action rod on the switch machine to move. The action rod and the locking rod are connected to the point rail through a linkage device. The point rail drives the locking rod to move. When it moves to the end position, the switch machine is locked and an indication is given. In summary, the working positions of the switch machine include: pulled in locking position and extended locking position. When the switch machine is in the locked position, the identification line 930 (i.e., the engraved line) is aligned with a shift mark pointer.

[0087] In order to adapt to switch machines with different installation directions, four marking lines 930 (i.e. engraved lines) are provided on the locking rod.

[0088] Figure 5The two marking lines 930 (i.e., engraved lines) at the left ends of the first locking rod 931 and the second locking rod 932 shown in FIG. Figure 7 , Figure 8 , Fig. 9 The two identification lines 930 (i.e., engraved lines) of the left-mounted switch machine (i.e., the locking rod extends from the right side of the lower shell 91 of the switch machine) are shown. At this time, the two identification lines 930 on the first locking rod 931 and the second locking rod 932 on the side of the double-hole cover plate 94 of the switch machine 9 are aligned with the pointers of the first cursor 2 and the second cursor 3.

[0089] See also Fig.10 When the switch machine moves to the end locking position, the locking column 96 on the contact seat in the switch machine falls into the straight opening 97 (i.e., the concave notch) of the locking rod 93. At this time, the gap between the edge of the straight opening 97 of the locking rod 93 and the edge of the adjacent locking column 96 is the notch gap, and the notch gap is required to be 2±0.5mm. Since the rod part of the straight opening 97 (i.e., the concave notch) of the locking rod 93 and the locking column 96 are located below the contact seat and inside the switch machine 9, when checking the notch, it is necessary to open the machine cover and check from the gap, which is not convenient for checking the notch. After the gap inside the switch machine is adjusted, align the shift mark pointer outside the machine with the scale line (i.e., the identification line). Then, after each switch machine is switched into place, the pointer of each cursor will be aligned with one of the scale lines (i.e., the identification line). When the gap needs to be checked at the work site, it is only necessary to check from the outside of the machine whether the shift mark pointer is aligned with the scale line to know whether the switch machine is switched into place, that is, whether the locking column 96 can be reliably dropped into the straight opening 97 (i.e., the concave gap) of the locking rod 93.

[0090] When the pointers of the first cursor 2 and the second cursor 3 are aligned with the two marking lines 930 on the first locking rod 931 and the second locking rod 932 on one side of the double-hole cover plate 94 close to the switch machine 9, it means that the switch machine has been switched to the right position, that is, the locking column 96 has been reliably dropped into the straight opening 97 (i.e., the concave notch) of the locking rod 93;

[0091] If the pointers of the first cursor 2 and the second cursor 3 are not aligned with the two identification lines 930 on the first locking rod 931 and the second locking rod 932 on one side of the double-hole cover plate 94 close to the switch machine 9, and the difference between the pointers and the corresponding identification lines 930 is too large (for example, in the axial direction of the locking rod, the distance between the projection of the pointer on the locking rod and the corresponding identification line 930 exceeds the pre-required distance, the pre-required distance is, for example, 2 mm), it means that the switch machine has not been switched into place and a switching failure has occurred, that is, the locking column 96 has not reliably fallen into the straight opening 97 (that is, the concave notch) of the locking rod 93.

[0092] It should be noted that for a switch machine, the locking column in the switch machine contact seat is connected to the spline arm, the moving contact group is connected to the bracket, the spline arm and the bracket are connected through the spline shaft. When the locking column falls into the straight mouth of the locking rod, the moving contact group can be driven into the static contact group, thereby connecting the indicating circuit.

[0093] It should be noted that the internal structure of the switch machine and the structural design and working principle of the locking rod and the locking column are the original design of the existing switch machine, which is a mature and widely used technology and will not be described here. For example, it can be the original locking rod related structural design on the ZDJ9 dustproof and sealed switch machine produced by Tianjin Railway Signal Co., Ltd.

[0094] It should be noted that, for the present invention, the gap auxiliary viewing device provided by the present invention is only installed at the double-hole cover plate 94 at the protruding end of the locking rod of the switch machine.

[0095] Based on the switch machine gap auxiliary viewing device provided by the present invention, the present invention further provides a switch machine, which includes the switch machine gap auxiliary viewing device described above, and a device housing of the switch machine 9;

[0096] The device housing (specifically the lower housing 91) of the switch machine 9 is provided with a transversely distributed locking rod 93;

[0097] The shift mark window 1 is located above the extended end rod of the locking rod 93 .

[0098] In the present invention, in a specific implementation, the device housing of the switch machine 9 includes a lower housing 91 and a machine cover 92 arranged on the top of the lower housing;

[0099] A locking rod 93 is provided on the lower housing 91;

[0100] A double-hole cover plate 94 is provided on one side outer wall of the lower housing 91;

[0101] The shift mark window 1 is fixed to the outer side of the double-hole cover plate 94 of the switch machine 9 by two first mounting bolts 95 (specifically mounting bolts with sealing rings);

[0102] The extended end of the locking rod 93 is close to one side of the double-hole cover plate 94 of the switch machine 9.

[0103] It should be noted that the double-hole cover plate 94 is only provided on one side of the lower housing 91 of the switch machine 9 having the extended end of the switch machine locking rod.

[0104] In terms of specific implementation, it should be noted that the switch machine of the present invention can be basically the same as the ZDJ9 switch machine produced by Tianjin Railway Signal Co., Ltd. The difference lies in: an auxiliary viewing device for the switch machine gap is added, and a corresponding identification line is set on the locking rod.

[0105] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a switch machine gap auxiliary viewing device and a switch machine, which have a scientific structural design and can allow electrician staff to reflect the actual state of the gap by checking the relative position of the shift mark (i.e., running standard) pointer and the rod mark line (i.e., identification line) on the locking rod without opening the switch machine cover, thereby reducing the labor intensity of on-site electrician staff and improving labor efficiency.

[0106] It should be noted that, for a switch machine, after the gap in the machine that is pulled in and out of the locking position is adjusted to within the standard range of 2±0.5mm, the shift mark pointer outside the machine (i.e., the pointer of the first cursor 2 and the second cursor 3) is adjusted to align with the rod scale line (i.e., the identification line) of the locking rod. When the gap inside the machine becomes larger or smaller, the scale line outside the machine cannot be aligned with the shift mark pointer. Therefore, the change in the gap gap can be inferred.

[0107] Therefore, the technical solution of the present invention is an auxiliary viewing tool for correcting gaps.

[0108] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A switch gap auxiliary viewing device, characterized in that: It includes a displacement scale window (1), a first cursor (2), a second cursor (3) and a square head screw (8); At the middle position of the bottom surface of the horizontally distributed displacement scale window (1), a horizontally distributed mounting bracket (101) is prominently provided forward; The left and right ends of the mounting bracket (101) are respectively fixedly connected to one end of the first cursor (2) and one end of the second cursor (3) through a square head screw (8); At the left and right ends of the displacement scale window (1), first bolt mounting through holes (103) are respectively provided; The first cursor (2) and the second cursor (3) are symmetrically arranged left and right; At the opposite ends of the first cursor (2) and the second cursor (3), a horizontally distributed pointer (10) is respectively provided; The two pointers (10) are located above the protruding end rod of the locking rod (93) of the switch machine (9).

2. The switch machine gap auxiliary viewing device according to claim 1, characterized in that: The first cursor (2) and the second cursor (3) both include a vertical section (201) and a horizontal end (202); At the tops of the two vertical sections (201), a horizontal section (202) is respectively provided oppositely; At the bottoms of the two vertical sections (201), a pointer (10) is respectively provided oppositely.

3. The switch machine gap auxiliary viewing device according to claim 2, characterized in that: The vertical section (201), the horizontal end (202) and the pointer (10) are integrally formed; The displacement scale window (1) is arranged perpendicular to the horizontal plane; The overall shapes of the first cursor (2) and the second cursor (3) are L-shaped; The top surface height of the pointer (10) is lower than the bottom surface height of the mounting bracket (101).

4. The switch machine gap auxiliary viewing device according to claim 1, characterized in that: At the left and right ends of the mounting bracket (101), a longitudinally distributed oval slot (102) is respectively vertically penetrated; The first cursor (2) and the second cursor (3) are respectively provided with a cursor through hole vertically penetrated at the position corresponding to the oval slot (102); After the square head screw (8) passes through the corresponding oval slot (102) and the cursor through hole from bottom to top, it is threadedly fixedly connected to at least one fastening nut; and / or At the left and right ends of the mounting bracket (101), a downwardly bent limiting iron (104) is respectively provided; The two square head screws (8) are located at the position between the two limiting irons (104); On the opposite sides of the two limiting irons (104), they respectively abut against the nuts at the bottoms of each square head screw (8).

5. The switch machine gap auxiliary viewing device according to claim 4, characterized in that: The two oval slots (102) are symmetrically distributed left and right; The shape of the mounting bracket (101) is an inverted "U" shape.

6. The switch machine gap auxiliary viewing device according to claim 4, characterized in that: After the square head screw (8) passes through the corresponding oval slot (102) and the cursor through hole from bottom to top, it is successively threadedly fixedly connected to the third nut (7) and the second nut (6); A spring washer (4) is sleeved on the circumferential outer side of the part of the screw rod of the square head screw (8) between the bottom surface of the third nut (7) and the top surface of the mounting bracket (101).

7. The switch gap auxiliary viewing device according to any one of claims 1 to 6, characterized in that: The device housing of the switch machine (9) includes a lower housing (91) and a machine cover (92) arranged on the top of the lower housing; On one outer wall of the lower housing (91), a double-hole cover plate (94) is provided; The displacement scale window (1) is fixed to the outside of the double-hole cover plate (94) of the switch machine (9) through two first mounting bolts (95); A locking rod (93) of a switch machine (9), comprising a first locking rod (931) and a second locking rod (932) arranged in parallel; The first locking rod (931) and the second locking rod (932) transversely penetrate through a double-hole cover plate (94) on a lower housing (91) of the switch machine (9); The protruding ends of the first locking rod (931) and the second locking rod (932) are one end of the double-hole cover plate (9) close to the switch machine (9); A first notch (9310) is provided on the top non-extending end side of the first locking rod (931); A second notch (9210) is provided on one side of the top protruding end of the second locking rod (932); The first locking rod (931) and the second locking rod (932) are respectively provided with identification lines (930).

8. The switch machine gap auxiliary viewing device according to claim 7, characterized in that: Two first threaded holes are arranged on the double-hole cover plate (94) of the switch machine (9); The two first threaded holes on the double-hole cover plate (94) are arranged to correspond exactly to the two first bolt mounting through holes (103) on the shift mark window (1); After the first mounting bolt (95) passes through the first bolt mounting through hole (1) (03), it is threadedly fixedly connected with the first threaded hole on the double-hole cover plate (94) at the corresponding position; The two pointers (10) on the first cursor (2) and the second cursor (3) are located above the protruding end rod of the locking rod (93) close to one end of the double-hole cover plate (9), specifically, above the first locking rod (931) and the second locking rod (932), respectively; The pointers of the first cursor (2) and the second cursor (3) are respectively aligned with two identification lines (930) on the first locking rod (931) and the second locking rod (932) of the locking rod (93) on one side of the double-hole cover plate (94) close to the switch machine (9).

9. A switch machine, characterized in that: It comprises a switch machine gap auxiliary viewing device as claimed in any one of claims 1 to 8, and a device housing of a switch machine (9); A locking rod (93) distributed laterally is arranged on the device housing of the switch machine (9); The shift mark window (1) is located above the extended end rod of the locking rod (93).

10. The switch machine according to claim 9, characterized in that: The device housing of the switch machine (9) comprises a lower housing (91) and a machine cover (92) arranged on the top of the lower housing; A locking rod (93) is provided on the lower housing (91); A double-hole cover plate (94) is provided on one side outer wall of the lower shell (91); The shift mark window (1) is fixed to the outer side of the double-hole cover plate (94) of the switch machine (9) by two first mounting bolts (95); The extended end rod of the locking rod (93) is close to one side of the double-hole cover plate (94) of the switch machine (9).

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