A linkage stop mechanism

Abstract

This utility model discloses a linkage stop mechanism, including a base plate, two horizontally parallel rolling linear guides, and an upper base plate. The lower end of the upper base plate is slidably connected to one of the rolling linear guides. A first stop shaft is provided at the upper end of the upper base plate. A ball bearing linear guide is provided between the upper base plate and the first stop shaft. Two second stop shafts and a third stop shaft are slidably connected to the other rolling linear guide. The third stop shaft is elastically connected between the two second stop shafts. The third shaft connecting plate, the first stop shaft, and the second stop shafts are connected by several linkages. This utility model can achieve a good stopping effect and also allows for easy unlocking.

Description

Technical Field

[0001] This utility model relates to the field of stopping devices, and in particular to a linkage stopping mechanism. Background Technology

[0002] Trains face unique challenges when running on curves. Due to centrifugal force, the train body tends to shift laterally, which increases the risk of mechanical collision between the train body and the track.

[0003] To avoid the above risks, existing technologies often employ auxiliary mechanical restraint devices, such as retractable friction blocks or hydraulic brake arms at key locations on the bogie or car body, which are activated during cornering to provide rigid braking. While this approach improves cornering safety, it has significant drawbacks. The braking mechanism's response relies on external commands or preset position sensors, and the unlocking action is prone to lag, resulting in the train remaining mechanically restrained after exiting the curve, increasing running resistance and component wear. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the current stopping mechanism, the present invention can achieve excellent stopping effect and can also easily unlock.

[0005] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0006] A linkage stop mechanism includes a base plate, on which two horizontally parallel rolling linear guides and an upper base plate are provided. The lower end of the upper base plate is slidably connected to one of the rolling linear guides. The upper end of the upper base plate is provided with a first stop shaft. A ball bearing linear guide is provided between the upper base plate and the first stop shaft. Two second stop shafts and a third stop shaft are slidably connected to the other rolling linear guide. A third stop shaft is elastically connected between the two second stop shafts. The third shaft connecting plate, the first stop shaft, and the second stop shafts are connected by a plurality of links. The links include a first link, a second link, and a third link, which are sequentially sleeved on the first stop shaft from top to bottom.

[0007] According to one aspect of the present invention, a slider is provided between the first stop shaft and the ball linear guide.

[0008] According to one aspect of the present invention, a slider is provided between the second stop shaft and the rolling linear guide.

[0009] According to one aspect of the present invention, a slider is provided between the third stop shaft and the rolling linear guide.

[0010] According to one aspect of the present invention, the second stop shaft and the third stop shaft are connected by a tension spring.

[0011] According to one aspect of the present invention, push blocks are provided on both sides of the upper base plate.

[0012] According to one aspect of the present invention, the base plate is provided with a groove on the side near the third stop shaft, and a stop block is provided in the groove.

[0013] According to one aspect of the present invention, two-thirds of the stop block is located within the groove.

[0014] According to one aspect of the present invention, the second link and the third link have the same length.

[0015] According to one aspect of the present invention, one end of the first connecting rod, the second connecting rod and the third connecting rod is sleeved on the first stop shaft, the other end of the first connecting rod is sleeved on the third stop shaft, the other end of the second connecting rod is sleeved on one of the second stop shafts, and the other end of the third connecting rod is sleeved on the other second stop shaft.

[0016] The advantages of this utility model are: simple overall structure, effective stopping effect, stopping up to 200Kg. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a top view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the stop block described in this utility model.

[0021] 1. Base plate; 2. First connecting rod; 3. Second connecting rod; 4. Third connecting rod; 5. Upper base plate; 6. Rolling linear guide; 7. Ball linear guide; 8. Push block; 9. Stop block; 10. Tension spring; 11. First stop shaft; 12. Second stop shaft; 13. Third stop shaft; 14. Slider. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] like Figures 1 to 3 As shown, a linkage stop mechanism includes a base plate 1, on which two horizontally parallel rolling linear guides 6 and an upper base plate 5 are provided. The lower end of the upper base plate 5 is slidably connected to one of the rolling linear guides 6. The upper end of the upper base plate 5 is provided with a first stop shaft 11. A ball linear guide 7 is provided between the upper base plate 5 and the first stop shaft 11. The other rolling linear guide 6 is slidably connected to two second stop shafts 12 and a third stop shaft 13. The third stop shaft 13 is elastically connected between the two second stop shafts 12. The third shaft connecting plate, the first stop shaft 11 and the second stop shaft 12 are connected by several connecting rods. The connecting rods include a first connecting rod 2, a second connecting rod 3 and a third connecting rod 4, which are sequentially sleeved on the first stop shaft 11 from top to bottom.

[0025] The lower ends of the first stop shaft 11, the second stop shaft 12, and the third stop shaft 13 are provided with shaft mounting plates, which are used to install and fix the first stop shaft 11, the second stop shaft 12, and the third stop shaft 13.

[0026] In practical applications, a slider 14 is provided between the first stop shaft 11 and the ball linear guide 7.

[0027] In practical applications, a slider 14 is provided between the second stop shaft 12 and the rolling linear guide 6.

[0028] In practical applications, a slider 14 is provided between the third stop shaft 13 and the rolling linear guide 6.

[0029] In practical applications, the second stop shaft 12 and the third stop shaft 13 are connected by a tension spring 10. The two tension springs 10 have the same elastic force, achieving force balance among the first link 2, the second link 3, and the third link 4.

[0030] In practical applications, push blocks 8 are provided on both sides of the upper base plate 5. The upper base plate 5 is positioned by the push blocks 8.

[0031] In practical applications, the base plate 1 has a groove on the side near the third stop shaft 13, and a stop block 9 is provided in the groove. The stop block 9 is used for limiting the movement.

[0032] In practical applications, two-thirds of the stop block 9 is inside the groove.

[0033] In practical applications, one end of the first link 2, the second link 3 and the third link 4 is sleeved on the first stop shaft 11, the other end of the first link 2 is sleeved on the third stop shaft 13, the other end of the second link 3 is sleeved on one of the second stop shafts 12, and the other end of the third link 4 is sleeved on the other second stop shaft 12.

[0034] The second link 3 and the third link 4 are of the same length. This achieves force balance among the first link 2, the second link 3, and the third link 4.

[0035] In use, since the second link 3 and the third link 4 are of the same length, the second stop shaft 12 and the third stop shaft 13 are connected by a tension spring 10, and the tension of the two tension springs 10 is the same. The first link 2, the second link 3 and the third link 4 are in a stopped state (the three are in force balance and cannot be pulled). When it is necessary to unlock, the first link 2 is moved laterally to create an offset, which disrupts the force balance of the three and thus achieves the stopped state.

[0036] Example 2:

[0037] like Figures 1 to 3 As shown, a linkage stop mechanism includes a base plate 1, on which two horizontally parallel rolling linear guides 6 and an upper base plate 5 are provided. The lower end of the upper base plate 5 is slidably connected to one of the rolling linear guides 6. The upper end of the upper base plate 5 is provided with a first stop shaft 11. A ball linear guide 7 is provided between the upper base plate 5 and the first stop shaft 11. The other rolling linear guide 6 is slidably connected to two second stop shafts 12 and a third stop shaft 13. The third stop shaft 13 is elastically connected between the two second stop shafts 12. The third shaft connecting plate, the first stop shaft 11 and the second stop shaft 12 are connected by several connecting rods. The connecting rods include a first connecting rod 2, a second connecting rod 3 and a third connecting rod 4, which are sequentially sleeved on the first stop shaft 11 from top to bottom. The base plate 1 has a groove on the side near the third stop shaft 13. A stop block 9 is provided in the groove. The stop block 9 has a hole on the side near the third stop shaft 13, so that the third stop shaft 13 can move left and right to unlock.

[0038] The preferred rolling linear guide 6 is the THK RSX-M miniature rolling linear guide 6.

[0039] The preferred ball linear guide 7 is the MGW7-C miniature ball linear guide 7.

[0040] The lower ends of the first stop shaft 11, the second stop shaft 12, and the third stop shaft 13 are provided with shaft mounting plates, which are used to install and fix the first stop shaft 11, the second stop shaft 12, and the third stop shaft 13.

[0041] In practical applications, a slider 14 is provided between the first stop shaft 11 and the ball linear guide 7.

[0042] In practical applications, a slider 14 is provided between the second stop shaft 12 and the rolling linear guide 6.

[0043] In practical applications, a slider 14 is provided between the third stop shaft 13 and the rolling linear guide 6.

[0044] In practical applications, the second stop shaft 12 and the third stop shaft 13 are connected by a tension spring 10. The two tension springs 10 have the same elastic force, achieving force balance among the first link 2, the second link 3, and the third link 4.

[0045] In practical applications, push blocks 8 are provided on both sides of the upper base plate 5. The upper base plate 5 is positioned by the push blocks 8.

[0046] In practical applications, two-thirds of the stop block 9 is inside the groove.

[0047] In practical applications, one end of the first link 2, the second link 3 and the third link 4 is sleeved on the first stop shaft 11, the other end of the first link 2 is sleeved on the third stop shaft 13, the other end of the second link 3 is sleeved on one of the second stop shafts 12, and the other end of the third link 4 is sleeved on the other second stop shaft 12.

[0048] The second link 3 and the third link 4 are of the same length. This achieves force balance among the first link 2, the second link 3, and the third link 4.

[0049] In use, since the second link 3 and the third link 4 are of the same length, and the second stop shaft 12 and the third stop shaft 13 are connected by a tension spring 10, and the tension of the two tension springs 10 is the same, the first link 2, the second link 3 and the third link 4 are in a stopped state (the three are in force balance and cannot be pulled). When it is necessary to unlock, the first link 2 is moved laterally to create an offset, which disrupts the force balance of the three, thereby achieving the stopped state.

[0050] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A connecting rod stop mechanism comprising a base plate (1) provided with two transversely parallel rolling linear guides (6) and an upper base plate (5), characterized in that, The lower end of the upper base plate (5) is slidably connected to one of the rolling linear guides (6). The upper end of the upper base plate (5) is provided with a first stop shaft (11). A ball linear guide (7) is provided between the upper base plate (5) and the first stop shaft (11). The other rolling linear guide (6) is slidably connected to two second stop shafts (12) and a third stop shaft (13). The third stop shaft (13) is elastically connected between the two second stop shafts (12). The third stop shaft (13), the first stop shaft (11) and the second stop shaft (12) are connected by several connecting rods. The connecting rods include a first connecting rod (2), a second connecting rod (3) and a third connecting rod (4) that are sequentially sleeved on the first stop shaft (11) from top to bottom.

2. The link stop mechanism according to claim 1, characterized by A ball linear guide (7) slider (14) is provided between the first stop shaft (11) and the ball linear guide (7).

3. The link stop mechanism of claim 1, wherein A sliding block (14) for the rolling linear guide (6) is provided between the second stop shaft (12) and the rolling linear guide (6).

4. The link stop mechanism of claim 1, wherein A slider (14) for the rolling linear guide (6) is provided between the third stop shaft (13) and the rolling linear guide (6).

5. The link stop mechanism of claim 1, wherein The second stop shaft (12) and the third stop shaft (13) are connected by a tension spring (10).

6. The link stop mechanism of claim 1, wherein Push blocks (8) are provided on both sides of the upper base plate (5).

7. The link stop mechanism of claim 1, wherein The base plate (1) has a groove on the side near the third stop shaft (13), and a stop block (9) is provided in the groove.

8. The link stop mechanism of claim 7, wherein Two-thirds of the stop (9) is located within the groove.

9. The linkage stop mechanism according to any one of claims 1 to 8, characterized in that, The second link (3) and the third link (4) have the same length.

10. The link stop mechanism of claim 9, wherein One end of the first link (2), the second link (3) and the third link (4) is sleeved on the first stop shaft (11), the other end of the first link (2) is sleeved on the third stop shaft (13), the other end of the second link (3) is sleeved on one of the second stop shafts (12), and the other end of the third link (4) is sleeved on the other second stop shaft (12).

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