Magnetic door stop for railway locomotive

Abstract

The utility model discloses a magnetic door stop for a railway locomotive, and belongs to the technical field of locomotive accessories. The automobile door stop comprises a movable stop block, a door stop shell and a connecting assembly, the movable stop block comprises a flexible block body and a magnetic attraction unit, the magnetic attraction unit is detachably connected with one end of the flexible block body, and the magnetic attraction unit can magnetically attract an automobile door; the door shield shell is connected with the inner wall of a vehicle body, a moving cavity is formed in the door shield shell, and the other end of the flexible block is movably inserted into the moving cavity; the connecting assembly comprises an elastic piece arranged in the moving cavity, and the two ends of the elastic piece are connected with the flexible block and the moving cavity correspondingly so that impact of the vehicle door can be buffered. The door stop can protect the magnetic attraction device from being damaged, and the service life of the door stop is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of locomotive parts technology, and in particular to a magnetic door stop for railway locomotives. Background Technology

[0002] The driver's cab of a locomotive is usually equipped with multiple doors, and the opening position of each door needs to be limited and positioned. Door stops that cooperate with the doors can be set inside the locomotive to meet the corresponding requirements.

[0003] However, locomotive doors are generally made of steel and weigh about 40kg. Due to the excessive weight of the doors, they have strong inertia during opening and closing. Ordinary rigid door stops cannot withstand the corresponding impact force, and the magnetic attraction device is easily damaged and has a short service life. Utility Model Content

[0004] In view of this, it is necessary to provide a magnetic door stop for railway locomotives to solve the problem that existing door stops cannot be adapted to the doors of railway locomotives.

[0005] This utility model provides a magnetic door stop for railway locomotives, comprising:

[0006] A movable barrier, comprising a flexible block and a magnetic unit, wherein the magnetic unit is detachably connected to one end of the flexible block and is capable of magnetically attracting the car door;

[0007] A door stop housing is connected to the inner wall of the vehicle body. A movable cavity is provided inside the door stop housing, and the other end of the flexible block is movably inserted into the movable cavity.

[0008] A connecting assembly includes an elastic element disposed in the movable cavity, the two ends of which are respectively connected to the flexible block and the movable cavity to buffer the impact of the car door.

[0009] Furthermore, the connecting assembly also includes a limiting unit, which includes a rivet and a limiting hole. The limiting hole is formed on the movable stop, the middle part of the rivet passes through the limiting hole, and the two ends of the rivet are respectively connected to the movable stop. The size of the limiting hole is larger than that of the rivet.

[0010] Furthermore, the limiting hole is an oblong hole, and the extending direction of the oblong hole is consistent with the extension and retraction direction of the elastic element.

[0011] Furthermore, the magnetic suction unit includes a slot formed on the flexible block and a magnet, the magnet being fitted into the slot.

[0012] Furthermore, the card slot is T-shaped or dovetail-shaped, and the magnet is adapted to the card slot.

[0013] Furthermore, the multiple slots are arranged in a linear array relative to the flexible block, and adjacent magnets abut against each other.

[0014] Furthermore, the movable stop also includes a locking unit, which includes a locking hole and a locking rod. The locking hole is disposed transversely through the flexible block, and the locking rod is inserted into the locking hole via the magnet.

[0015] Furthermore, the door stop housing also includes a fixing unit, which includes at least two through holes and screws. The through holes are formed on the door stop housing, and the screws are connected to the vehicle body wall through the through holes.

[0016] Furthermore, it also includes a baffle plate, which is connected to the door and is positioned relative to the magnetic attraction unit.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) The present invention provides a magnetic door stop for railway locomotives, comprising a door stop housing connected to the inner wall of the locomotive body to restrict the opening and closing position of the door. The door stop housing contains a movable cavity, and the other end of a flexible block is movably inserted into the door stop housing. The flexible block can move smoothly within the door stop housing, avoiding rigid collisions. Simultaneously, the impact force of the door is dispersed and transformed through the space within the cavity, preventing excessive direct impact on the door and door stop.

[0019] (2) A magnetic door stop for railway locomotives according to this utility model is provided with a connecting assembly. The connecting assembly includes an elastic element disposed in a movable cavity, and the two ends of the elastic element are respectively connected to a flexible block and the movable cavity. When the door approaches the closed position, the elastic element can absorb part of the impact force through deformation and prevent the inertial force of the door from acting directly on the magnetic unit, thereby avoiding damage to the door stop and effectively extending the service life of the door stop. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the entire utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the movable stop in this utility model. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the structure of the movable stop in this utility model. Figure 2 ;

[0025] Figure 5 This is a schematic diagram of the magnet structure in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the middle door stop shell of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the baffle in this utility model;

[0028] In the diagram, 100 is the movable stop; 110 is the flexible block; 120 is the magnetic unit; 121 is the slot; 122 is the magnet; 130 is the locking unit; 131 is the locking hole; and 132 is the locking rod.

[0029] 200. Door stop housing; 210. Moving cavity; 220. Fixing unit; 221. Through hole; 222. Screw;

[0030] 300. Connecting component; 310. Elastic element; 320. Limiting unit; 321. Rivet; 322. Limiting hole; 400. Baffle. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0032] This embodiment of a magnetic door stop for railway locomotives relates to the field of locomotive parts technology. The door stop is provided with a movable stop body 100 and an elastic element 310. With the help of the elastic element 310, the movable stop body 100 can extend and retract relative to each other, avoiding rigid collision between the movable stop body 100 and the car door, protecting the magnetic device from damage, and extending the service life of the door stop.

[0033] Please see Figures 1 to 7 This embodiment of a magnetic door stop for railway locomotives includes: a movable stop body 100, a door stop housing 200, and a connecting assembly 300. The movable stop body 100 can be magnetically attached to the car door to constrain its movement. The door stop housing 200 is connected to the inner wall of the car body to support the car door and limit its opening and closing angle. The connecting assembly 300 elastically connects the movable stop body and the door stop housing 200, allowing the movable stop body to move elastically relative to the door stop housing 200, preventing the car door from directly colliding with the magnetic device and damaging the door stop.

[0034] The movable door stop 100 includes a flexible block 110 and a magnetic unit 120. The magnetic unit 120 is detachably connected to one end of the flexible block 110, allowing for easy replacement of any damaged magnetic unit 120. The magnetic unit 120 connects to the door via magnetism, effectively attracting and engaging the door and door stop. The magnetic unit 120 provides a strong positioning force, ensuring the door stop accurately adheres to the closed position of the door, maintaining its stability and reliability. The flexible block 110 has a certain degree of deformation capability, absorbing some of the impact force when the door collides with the door stop, acting as a shock absorber and buffer, preventing damage to the rigid door stop due to excessive impact.

[0035] The door stop housing 200 is connected to the inner wall of the vehicle body, restricting the opening and closing position of the door. A movable cavity 210 is provided inside the door stop housing 200, and the other end of the flexible block 110 is movably inserted into the door stop housing 200. The flexible block 110 can move smoothly within the door stop housing 200, avoiding rigid collisions. It also allows the impact force of the door to be dispersed and transformed through the space within the cavity, preventing excessive direct impact on the door and door stop.

[0036] The connecting assembly 300 includes an elastic element 310 disposed in the movable cavity 210, with both ends of the elastic element 310 connected to the flexible block 110 and the movable cavity 210, respectively. When the car door approaches the closed position, the elastic element 310 can absorb part of the impact force through deformation and prevent the inertial force of the car door from acting directly on the magnetic suction unit 120, thereby avoiding damage to the door stop and effectively extending the service life of the door stop.

[0037] In some embodiments, please refer to Figures 1 to 3 The connecting component 300 also includes a limiting unit 320, which includes a rivet 321 and a limiting hole 322. The limiting hole 322 is opened on the movable stop 100. The middle part of the rivet 321 passes through the limiting hole 322. The two ends of the rivet 321 are respectively connected to the movable stop 100. The size of the limiting hole 322 is larger than that of the rivet 321. The movable stop 100 can move relative to the rivet 321 in the limiting hole 322, which can effectively prevent the movable stop 100 from undergoing excessive displacement during movement and ensure that the door stop works within a certain range.

[0038] When the car door is closed, the rivet 321, constrained by the limiting hole 322, restricts the range of motion of the movable stop 100, preventing it from deviating from the predetermined trajectory or exceeding the safe range of motion. Especially when the car door is closed, as the door moves relatively away from the door stop, the magnetic unit 120 attached to the door causes the movable stop 100 to move synchronously relative to the door. The elastic element 310 is stretched, and the movable stop 100 can only detach from the door when the tension of the elastic element 310 exceeds the attraction of the magnetic unit 120. The rivet 321 assists the movable stop 100, providing necessary support. The rivet 321 acts on the movable stop 100 before the elastic element 310 is overstretched, preventing damage to the elastic element 310.

[0039] In some embodiments, please refer to Figure 2 and Figure 3 The limiting hole 322 is an oblong hole, and the extension direction of the oblong hole is consistent with the extension and contraction direction of the elastic element 310. This ensures that the elastic element 310 can evenly bear the impact force of the door during the closing process, rather than being subjected to sudden or uneven forces. The inertial force of the door can be gradually relieved by the elastic element 310, avoiding excessive local impact or vibration.

[0040] Compared to circular or rectangular holes, the oblong hole offers greater flexibility, providing a degree of freedom for the extension and retraction of the elastic element 310. The oblong hole, aligned with the extension and retraction direction of the elastic element 310, allows the elastic element 310 to move freely within a certain range during operation, while ensuring that the door stop system does not experience excessive displacement or jamming.

[0041] The length direction of the oblong hole is consistent with the extension and contraction direction of the elastic element 310, reducing stress concentration or nonlinear response caused by the mismatch between the shape of the limiting hole 322 and the extension and contraction of the elastic element 310. The elastic element 310 can smoothly compress or extend when the door is closed, avoiding local damage caused by inconsistent stress distribution and improving the reliability of the system.

[0042] In the specific implementation process, the elastic element 310 is a spring, and the two ends of the spring are connected to the flexible block 110 and the door stop block respectively, providing necessary buffering and shock absorption for the movement of the flexible block 110.

[0043] In some embodiments, please refer to Figures 2 to 5The magnetic unit 120 includes a slot 121 formed on the flexible block 110 and a magnet 122. The magnet 122 is fitted into the slot 121, which fixes the magnet 122 to the flexible block 110, ensuring that the magnet 122 is not easily displaced or detached during operation. The slot 121 provides a stable mounting position, allowing the magnet 122 to be firmly attached to the flexible block 110, preventing the magnet 122 from loosening due to vibration or external force during frequent opening and closing.

[0044] Magnet 122 is snapped into slot 121, making its installation and removal simpler and more convenient. When magnet 122 needs to be replaced or maintained, it can be quickly removed or replaced without replacing the entire flexible block 110. The easy installation and removal of magnet 122 reduces the workload during maintenance and improves the maintainability of the system.

[0045] As a further embodiment, the slot 121 is T-shaped or dovetail-shaped, and the magnet 122 is adapted to the slot 121. One end of the magnet 122 is provided with a snap-fit ​​body adapted to the slot 121. The snap-fit ​​body is also T-shaped or dovetail-shaped. The snap-fit ​​body snaps into the slot 121 to fasten the magnet 122.

[0046] In the specific implementation process, the slot 121 extends along the width direction of the flexible block 110. The slot 121 can be a through slot or a sealed slot. The slot 121 can effectively constrain the magnet 122.

[0047] In some embodiments, please refer to Figure 4 Multiple slots 121 are arranged in a linear array relative to the flexible block 110. By increasing the number of slots 121, the number of magnets 122 can be increased. The change in the number of magnets 122 can change the attraction force of the magnetic attraction unit 120 on the door. A relatively large attraction force can enhance the door's ability to resist external forces (such as wind, inertia, and collisions) when it is open, and prevent the door from closing in an abnormal state, thus avoiding safety hazards to the operation of the vehicle and personnel.

[0048] Adjacent magnets 122 abut against each other, and the continuous magnetic force provided by the magnetic attraction unit 120 allows the attraction force when the door contacts the door stop to transition smoothly, avoiding sudden attraction or detachment caused by uneven attraction force or changes in the distance between magnets 122.

[0049] In some embodiments, please refer to Figure 4The movable stop 100 also includes a locking unit 130, which includes a locking hole 131 and a locking rod 132. The locking hole 131 is disposed transversely through the flexible block 110, forming multiple holes on both sides of the slot 121. The locking rod 132 is inserted into the locking hole 131 via a magnet 122, fixing the magnet 122 and the flexible block 110 together. This prevents the magnet 122 from shifting due to external force or vibration, ensuring the stability and adsorption force of the magnet 122 during use. Especially when the car door is opened or closed quickly or subjected to impact, the additional support provided by the locking rod 132 ensures that the magnet 122 always remains in the correct working position, thus making the magnetic attraction function continuously effective.

[0050] The locking unit 130, through the interaction of the locking lever 132 and the locking hole 131, effectively prevents the door stop from failing or changing position due to the strong impact force generated during the rapid opening and closing of the door. The locking lever 132 in the locking hole 131 acts as an additional buffer and fixing mechanism, helping the door stop system withstand external impact forces, thereby improving the overall system's impact resistance.

[0051] In some embodiments, please refer to Figure 1 and Figure 2 The door stop housing 200 also includes a fixing unit 220, which includes at least two through holes 221 and screws 222. The through holes 221 are formed on the door stop housing 200, and the screws 222 pass through the through holes 221 and are threaded to the vehicle body wall. The at least two screws 222 provide stronger fixing force, so that the door stop housing 200 can maintain a stable position on the vehicle body and avoid system failure or component displacement due to the inertial force of the door or frequent opening and closing actions.

[0052] In some embodiments, please refer to Figure 7 A magnetic door stop for railway locomotives includes a baffle 400, which is adapted to a movable stop block and connected to the door. The baffle 400 is positioned relative to the magnetic unit 120 to ensure precise engagement of the door with the door stop during closing. When the door contacts the magnetic unit 120, the baffle 400 maintains the correct angle and position, avoiding inaccurate contact due to door misalignment or errors, thereby improving the accuracy and reliability of the door stop system.

[0053] The baffle 400 and the magnetic attraction unit 120 are arranged opposite each other, which can generate a uniform magnetic attraction force when the car door approaches the door stop. The baffle 400 ensures that the angle and position of the car door are correct when it contacts the door stop, while the magnetic attraction unit 120 provides a stable attraction force. The coordinated action of the two makes the attraction process smoother and avoids vibration or noise caused by asymmetrical attraction forces between the car door and the door stop.

[0054] It should be noted that at least two countersunk holes are provided on the baffle 400, which can be fixed to the door using screws 222.

[0055] Workflow: First, install the baffle 400 onto the baffle 400, and fix the door stop housing 200 to the vehicle body wall. Then, install and fix the magnet 122 into the movable baffle 100. Next, fix both ends of the elastic member 310 to the movable baffle 100 and the movable cavity 210 respectively, and insert the movable baffle 100 into the movable cavity 210. Finally, install the rivet 321 to restrict the movement of the movable baffle 100.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A magnetic door stop for railway locomotives, characterized in that, include: A movable barrier, comprising a flexible block and a magnetic unit, wherein the magnetic unit is detachably connected to one end of the flexible block and is capable of magnetically attracting the car door; A door stop housing is connected to the inner wall of the vehicle body. A movable cavity is provided inside the door stop housing, and the other end of the flexible block is movably inserted into the movable cavity. A connecting assembly includes an elastic element disposed in the movable cavity, the two ends of which are respectively connected to the flexible block and the movable cavity to buffer the impact of the car door.

2. A magnetic door stop for railway locomotives according to claim 1, characterized in that, The connecting assembly further includes a limiting unit, which includes a rivet and a limiting hole. The limiting hole is formed on the movable stop, the middle part of the rivet passes through the limiting hole, and the two ends of the rivet are respectively connected to the movable stop. The size of the limiting hole is larger than that of the rivet.

3. A magnetic door stop for railway locomotives according to claim 2, characterized in that, The limiting hole is an oblong hole, and the extension direction of the oblong hole is consistent with the extension and contraction direction of the elastic element.

4. A magnetic door stop for railway locomotives according to claim 1, characterized in that, The magnetic suction unit includes a slot formed on the flexible block and a magnet, with the magnet being fitted into the slot.

5. A magnetic door stop for railway locomotives according to claim 4, characterized in that, The card slot is T-shaped or dovetail-shaped, and the magnet is adapted to the card slot.

6. A magnetic door stop for railway locomotives according to claim 5, characterized in that, The multiple slots are arranged in a linear array relative to the flexible block, and the adjacent magnets abut against each other.

7. A magnetic door stop for railway locomotives according to claim 6, characterized in that, The movable stop also includes a locking unit, which includes a locking hole and a locking rod. The locking hole is disposed transversely through the flexible block, and the locking rod is inserted into the locking hole via the magnet.

8. A magnetic door stop for railway locomotives according to claim 1, characterized in that, The door stop housing also includes a fixing unit, which includes at least two through holes and screws. The through holes are formed on the door stop housing, and the screws are connected to the vehicle body wall through the through holes.

9. A magnetic door stop for railway locomotives according to claim 1, characterized in that, It also includes a baffle plate, which is connected to the door and is positioned relative to the magnetic attraction unit.

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