Vehicle-mounted signal transponder replacing device

Abstract

The utility model discloses a vehicle-mounted signal transponder replacing device which comprises a lifting support, a base capable of being folded and stored is arranged at the bottom end of the support, and an expandable tray is arranged at the top end of the support. During use, the base is unfolded and placed below equipment to be replaced, the support is lifted to the needed height according to the actual situation, the tray is transversely adjusted to the proper position, the equipment is replaced, after replacement is completed, the tray and the support are retracted, the base is folded, and storage is completed. The device disclosed by the utility model has the characteristics of simplicity and flexibility in operation, convenience in storage and carrying, strong applicability, high safety and high working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of operation and maintenance of rail transit signal equipment, and in particular relates to a vehicle-mounted signal transponder replacement device. Background Art

[0002] With the rapid development of my country's rail transit construction, the number of subway kilometers in major cities across the country has been increasing year by year in recent years. However, as the number of years of operation increases, the use of signal equipment has led to a decline in signal equipment performance, an increasing probability of equipment failure, a greater number of fault types, and increasingly frequent equipment aging and line faults, which has led to a continuous increase in troubleshooting time. Furthermore, during the initial maintenance process, it was discovered that the existing tools required for troubleshooting required the cooperation of multiple operators to lift them. This method of operation was prone to equipment damage, complicated the operation process, shortened the equipment's service life, and created a poor working environment for employees. These problems were particularly prominent during the replacement of subway onboard signal transponders.

[0003] Previously, replacing a vehicle's signal transponder required the collaboration of three people, working in a confined space under the vehicle, taking 30 minutes, and posing a safety risk of the transponder falling during the replacement process. The tools currently used by professional vehicle signal repair technicians were unable to meet the requirements for fast and safe transponder replacement. Summary of the Invention

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present utility model is to provide a vehicle-mounted signal transponder replacement device, including a liftable bracket, a foldable storage base is provided at the bottom end of the bracket, and an expandable tray is provided at the top end of the bracket, which reduces the dependence on the number of operators, adapts to the replacement of equipment in various positions, improves work efficiency and safety, and is easy to carry and store.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A vehicle-mounted signal transponder replacement device comprises a liftable bracket 1, a foldable and retractable base 2 is provided at the bottom end of the bracket 1, and an expandable tray 3 is provided at the top end of the bracket 1.

[0007] The bracket 1 includes a first column 101, which is a hollow structure and has a gear box 102 on one side. The gear box 102 is connected to the hollow structure of the first column 101. A first gear 103 and a check switch 104 that cooperates with the first gear 103 are installed in the gear box 102 through bearings. One end of the check switch 104 is provided with a return bend 114 that engages with the first gear 103. The end of the check switch 104 close to the return bend 114 is connected to the bottom of the gear box 102 through a reset spring 105, and the other end of the check switch 104 extends out of the gear box 102.

[0008] The first gear 103 is fixedly connected to the crank 113 via a shaft.

[0009] A second column 106 adapted to the hollow structure of the first column 101 is disposed in the hollow structure of the first column 101 , and a rack 107 meshing with the first gear 103 is disposed on one side of the second column 106 .

[0010] The second column 106 is a hollow structure, and a gear rack 108 is provided at the top end on the same side as the rack 107 . A second gear 109 is mounted on the gear rack 108 via a bearing.

[0011] A third column 110 adapted to the hollow structure of the second column 106 is provided in the hollow structure of the second column 106. The third column 110 is provided with a chain groove 111 on the side facing the gear frame 108. A chain 112 is provided in the chain groove 111. One end of the chain 112 is fixedly connected to the bottom of the third column 110, and the other end of the chain 112 passes around the second gear 109 and is fixedly connected to the gear box 102.

[0012] The base 2 includes a plurality of legs 201 , one end of each leg 201 is rotatably connected to a connector 202 , and the connector 202 is fixedly connected to the bottom end of the bracket 1 .

[0013] A first limiting groove 203 is formed on the upper edge of the connecting member 202, and a second limiting groove 204 is formed on the side edge of the connecting member 202. A long limiting hole 205 is formed through the tripod 201. A portion of the limiting hole 205 is adapted to the first limiting groove 203 or the second limiting groove 204. A screw 206 for limiting is provided in the limiting hole 205.

[0014] When the tripod 201 is folded, the limiting hole 205 coincides with the first limiting groove 203 and is locked by the screw 206;

[0015] When the tripod 201 is opened, the limiting hole 205 overlaps with the second limiting slot 204 and is locked by the screw 206 .

[0016] The lower surface of the tray 3 is slidably connected to the tray seat 302 via a pull-out slide rail 301 , and the tray seat 302 is fixedly connected to the top end of the bracket 1 .

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model adopts a liftable bracket 1 and a foldable base 2, which reduces the storage space and is easy to carry.

[0019] 2. The utility model adopts a three-stage telescopic bracket 1. Through the mutual cooperation between the first gear 103, the second gear 109, the rack 107 and the chain 112, the three sections of the bracket 1 can be raised and lowered synchronously by only one crank 113, which is simple to operate.

[0020] 3. The lower surface of the tray 3 of the present invention is provided with a pull-out slide rail 301 , through which the tray 3 can be pulled out and expanded laterally, which is flexible.

[0021] 4. The utility model adopts a liftable bracket 1 and a tray 3 that can be pulled out and expanded laterally, so that the height and lateral position of the device can be adjusted according to actual conditions, further enhancing flexibility.

[0022] 5. The utility model adopts a liftable bracket 1, the bottom end of the bracket 1 is provided with a foldable storage base 2, and the top end of the bracket 1 is provided with an expandable tray 3. There is no need for the operator to push the tray from below, which can avoid accidental injuries, reduce the work intensity of the operator, and improve work efficiency and safety.

[0023] In summary, the utility model has the characteristics of simple and flexible operation, easy storage and carrying, strong applicability, high safety and improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional stereogram of the present invention.

[0025] Figure 2 It is the main view of the utility model.

[0026] Figure 3 It is a side sectional view of the utility model.

[0027] In the figure, 1 is a bracket, 101 is a first column, 102 is a gear box, 103 is a first gear, 104 is a check switch, 105 is a return spring, 106 is a second column, 107 is a rack, 108 is a gear rack, 109 is a second gear, 110 is a third column, 111 is a chain groove, 112 is a chain, 113 is a crank; 114 is a return bend;

[0028] 2 is the base, 201 is the tripod, 202 is the connecting piece, 203 is the first limiting slot, 204 is the second limiting slot, 205 is the limiting hole, and 206 is the screw;

[0029] 3 is a tray, 301 is a slide rail, and 302 is a tray seat. DETAILED DESCRIPTION

[0030] The structural principle and working principle of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Example

[0032] like Figures 1 to 3 As shown, a vehicle-mounted signal transponder replacement device includes a liftable bracket 1, a foldable and retractable base 2 is provided at the bottom end of the bracket 1, and an expandable tray 3 is provided at the top end of the bracket 1.

[0033] The bracket 1 includes a first column 101, which is a hollow structure and has a gear box 102 on one side. The gear box 102 is connected to the hollow structure of the first column 101. A first gear 103 and a check switch 104 that cooperates with the first gear 103 are installed in the gear box 102 through bearings. One end of the check switch 104 is provided with a return bend 114 that engages with the first gear 103. The end of the check switch 104 close to the return bend 114 is connected to the bottom of the gear box 102 through a reset spring 105 to realize unidirectional rotation of the first gear 103. The other end of the check switch 104 extends out of the gear box 102.

[0034] The first gear 103 is fixedly connected to the crank 113 via a shaft.

[0035] A second column 106 adapted to the hollow structure of the first column 101 is disposed in the hollow structure of the first column 101 , and a rack 107 meshing with the first gear 103 is disposed on one side of the second column 106 .

[0036] The second column 106 is a hollow structure, and a gear rack 108 is provided at the top end on the same side as the rack 107 . A second gear 109 is mounted on the gear rack 108 via a bearing.

[0037] A third column 110 adapted to the hollow structure of the second column 106 is provided in the hollow structure of the second column 106. The third column 110 is provided with a chain groove 111 on the side facing the gear frame 108. A chain 112 is provided in the chain groove 111. One end of the chain 112 is fixedly connected to the bottom of the third column 110, and the other end of the chain 112 passes around the second gear 109 and is fixedly connected to the gear box 102.

[0038] The base 2 includes four legs 201 forming a cross-shaped leg. One end of each leg 201 is rotatably connected to a connector 202 , and the connector 202 is fixedly connected to the bottom end of the bracket 1 .

[0039] A first limiting groove 203 is formed on the upper edge of the connecting member 202, and a second limiting groove 204 is formed on the side edge of the connecting member 202. A long limiting hole 205 is formed through the tripod 201. A portion of the limiting hole 205 is adapted to the first limiting groove 203 or the second limiting groove 204. A screw 206 for limiting is provided in the limiting hole 205.

[0040] When the tripod 201 is folded, the limiting hole 205 coincides with the first limiting groove 203 and is locked by the screw 206;

[0041] When the tripod 201 is opened, the limiting hole 205 overlaps with the second limiting slot 204 and is locked by the screw 206 .

[0042] The lower surface of the tray 3 is slidably connected to the tray seat 302 via a pull-out slide rail 301 , and the tray seat 302 is fixedly connected to the top end of the bracket 1 .

[0043] The working principle of this utility model is:

[0044] When in use, first unfold the four legs 201. After unfolding, slide the screw 206 in the limiting hole 205 of each leg 201 into the second limiting groove 204 and lock it. Then, place the device for unfolding the legs 201 under the device to be replaced, and shake the crank 113 according to actual needs. The crank 113 drives the first gear 103 to rotate, and the first gear 103 engages with the rack 107, so the rack 107 drives the second column 106 to rise, and the second column 106 carries the second gear 109 at its top to rise. The second gear 109 pushes the chain 112 upward, forming a movable pulley principle to drive the third column 110 to rise, so that the bracket 1 is raised to a suitable height, and finally the tray 3 is adjusted horizontally to a suitable position through the slide rail 301.

[0045] After use, first retract the tray 3, then press the check switch 104 by hand, and shake the handle 113 in the reverse direction to lower the bracket 1, finally loosen the screw 206, and fold the tripod 201. After folding, move the screw 206 into the first limit groove 203 and lock it to complete the storage.

[0046] The device weighs 12.5kg and stands 1m tall, can be raised to a maximum height of 2.5m, and can bear a maximum load of 50kg. It fully meets the universal design concept and is currently being used to replace onboard signal transponder equipment on all Xi'an Metro lines. The design of this utility model is also flexible and can be applied to a wider range of interfaces, such as replacing station PIS displays in the communications field.

[0047] The use of this device has significantly improved equipment troubleshooting efficiency and reduced maintenance workload for maintenance personnel. The transponder antenna replacement operation has been reduced from three people to one, and the operation time has been reduced from 30 minutes to 10 minutes, increasing work efficiency by 67% and saving 67% in manpower. The device's stability and maneuverability prevent the risk of equipment falling and personal injury, greatly improving operational safety.

[0048] Compared with existing methods, this device adopts a lightweight design, is light in weight, easy to carry, and can be used immediately after use. This utility model invention greatly improves the safety and convenience of operation, reduces the maintenance workload and labor intensity of maintenance personnel, significantly improves work efficiency and reduces labor time, effectively improves the efficiency of equipment fault repair, shortens the time of fault handling, and greatly improves production efficiency and equipment fault handling level.

Claims

1. A vehicle-mounted signal transponder replacement device, characterized in that: It comprises a liftable bracket (1), the bottom end of the bracket (1) is provided with a foldable and retractable base (2), and the top end of the bracket (1) is provided with an expandable tray (3); The bracket (1) includes a first column (101), the first column (101) is a hollow structure, and a gear box (102) is provided on one side, the gear box (102) is communicated with the hollow structure of the first column (101), a first gear (103) and a check switch (104) matched with the first gear (103) are respectively installed in the gear box (102) through bearings, one end of the check switch (104) is provided with a return bend (114) engaged with the first gear (103), one end of the check switch (104) close to the return bend (114) is connected to the bottom of the gear box (102) through a return spring (105), and the other end of the check switch (104) extends out of the gear box (102); The first gear (103) is fixedly connected to a crank (113) via a shaft; A second column (106) adapted to the hollow structure of the first column (101) is provided in the hollow structure of the first column (101), and a rack (107) meshing with the first gear (103) is provided on one side of the second column (106).

2. The vehicle-mounted signal transponder replacement device according to claim 1, characterized in that: The second column (106) is a hollow structure, and a gear rack (108) is provided at the top end on the same side as the rack (107), and a second gear (109) is installed on the gear rack (108) through a bearing; A third column (110) adapted to the hollow structure of the second column (106) is provided in the hollow structure of the second column (106); a chain groove (111) is provided on the side of the third column (110) facing the gear frame (108); a chain (112) is provided in the chain groove (111); one end of the chain (112) is fixedly connected to the bottom of the third column (110), and the other end of the chain (112) passes around the second gear (109) and is fixedly connected to the gear box (102).

3. The vehicle-mounted signal transponder replacement device according to claim 1, characterized in that: The base (2) comprises a plurality of legs (201), one end of each leg (201) is rotatably connected to a connecting member (202), and the connecting member (202) is fixedly connected to the bottom end of the bracket (1).

4. The vehicle-mounted signal transponder replacement device according to claim 3, characterized in that: The upper edge of the connecting member (202) is provided with a first limiting groove (203), the side edge of the connecting member (202) is provided with a second limiting groove (204), and a long strip-shaped limiting hole (205) is provided through the tripod (201), a part of the limiting hole (205) is adapted to the first limiting groove (203) or the second limiting groove (204), and a screw (206) for limiting is provided in the limiting hole (205); When the tripod (201) is folded, the limiting hole (205) coincides with the first limiting groove (203) and is locked by a screw (206); When the tripod (201) is opened, the limiting hole (205) overlaps with the second limiting groove (204) and is locked by a screw (206).

5. The vehicle-mounted signal transponder replacement device according to claim 1, characterized in that: The lower surface of the tray (3) is slidably connected to the tray seat (302) via a drawable slide rail (301), and the tray seat (302) is fixedly connected to the top end of the bracket (1).

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