Locomotive and track system with self-locking function

Abstract

The utility model relates to a locomotive and track system with a self-locking function, which comprises a locomotive body and a rescue device, the rescue device comprises power and a rescue structure, and the rescue structure comprises a parallelogram lifting mechanism and a parallelogram linkage mechanism and can be switched between a first position and a second position. At least one swing arm in the parallelogram linkage mechanism is provided with a first limiting part; at the first position, the swing arm inclines to the vertical direction, and the lower end of the rescue wheel is higher than or flush with the lower end of the walking wheel; the power is at least used for driving the swing arm to rotate in the vertical direction and enabling the connecting piece to reach the second position. At the second position, the first limiting part abuts against the adjacent swing arm, and the lower end of the rescue wheel is lower than the lower end of the walking wheel; according to the locomotive, rescue work can be efficiently completed under the condition that the walking wheels are locked, the jacking state can be stably kept, and the power load can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit technical field, concretely relates to a locomotive and rail system with self locking function. BACKGROUND

[0002] Rail transit is a kind of traffic tool or transport system running on specific rail, and with the development of technology, rail transit presents more and more types, and the suspension rail system is a new type of rail transit, for example, CN112744255B disclosed by a kind of rail system disclosed by Chinese patent, CN109664899B disclosed by a kind of suspension variable rail system, usually includes rail, locomotive (rail locomotive or vehicle) arranged on rail and car connected with locomotive and suspended under rail, the rail is usually erected in the air, and forms the cavity for locomotive running, as shown in the attached Figure 1 Figure, locomotive is arranged in cavity and walks along rail, thereby driving the car under forward.

[0003] In actual operation process, when locomotive fails in the running process of rail, it will bring great difficulty to rescue work when it cannot normally release brake and clutch. To solve this problem, a locomotive with rescue device is designed, the rescue device is provided with power and lifting mechanism capable of lifting, the lifting mechanism preferably adopts parallelogram lifting mechanism, the lifting mechanism is provided with rescue wheel, the power is drivingly connected with lifting mechanism, when locomotive fails, the whole locomotive can be lifted by power driving lifting mechanism, so that locomotive can continue to move along rail by rescue wheel, in order to achieve the purpose of efficient rescue. But in actual application, it is found that when lifting mechanism is in jacking state, the state of lifting mechanism is unstable, and jacking failure problem is prone to occur, in addition, in the process that locomotive moves along rail by rescue wheel, power will bear great load, which is not conducive to protecting power and improving service life of power, and it is urgent to be solved. SUMMARY

[0004] The utility model first aspect solves above-mentioned technical problem, provides a locomotive with self locking function, can efficiently complete rescue work under the condition that walking wheel is locked, not only can stably keep jacking state, but also can greatly reduce the load of power, improve the service life of power, and the main idea is:

[0005] The locomotive with self-locking function comprises a locomotive body, a walking wheel arranged on both sides of the locomotive body, a rescue device, a power and a rescue structure. The rescue structure comprises a connecting piece, at least three swing arms, both ends of each swing arm are rotatably connected to the frame and the connecting piece, the frame, the connecting piece and at least two swing arms constitute a parallelogram lifting mechanism, the connecting piece can be switched between position one and position two; at least two swing arms are arranged adjacent to each other and constitute a parallelogram linkage mechanism with the frame and the connecting piece, at least one swing arm in the parallelogram linkage mechanism is configured with a first limiting part; the power is in transmission connection with the connecting piece, the connecting piece is provided with a rescue wheel for supporting the locomotive body; at position one, the lower end of the rescue wheel is higher than or flush with the lower end of the walking wheel; the power is used to drive the swing arm to rotate through the vertical direction and make the connecting piece reach position two; at position two, the first limiting part abuts against the adjacent swing arm, and the lower end of the rescue wheel is lower than the lower end of the walking wheel. In the scheme, the frame, the swing arm and the connecting piece constitute a parallelogram lifting mechanism, and the rescue wheel and the power are arranged in the parallelogram lifting mechanism, so that the power can lift the entire locomotive through the parallelogram lifting mechanism, and the locomotive can continue to move along the track through the rescue wheel, so as to achieve the purpose of efficient rescue. At least two swing arms are arranged adjacent to each other and constitute a parallelogram linkage mechanism with the frame and the connecting piece, and the first limiting part is configured in at least one swing arm in the parallelogram linkage mechanism, so that when the swing arm rotates through the vertical direction under the action of the power and reaches position two, the swing arm is in an inclined state to the vertical direction because the swing arm has rotated through the vertical direction, and the first limiting part abuts against the adjacent swing arm, thereby achieving the purpose of automatically locking the entire rescue structure. On the one hand, the entire locomotive can be stably maintained in the lifting state, so as to efficiently and stably complete the rescue work; on the other hand, the load of the entire locomotive acts on the rescue structure, and does not act on the power, thereby the load borne by the power during the rescue movement can be greatly reduced, the power can be effectively protected, and the service life of the power can be improved.

[0006] Preferably, the first limiting part is configured on one side of the swing arm and faces the other swing arm.

[0007] Further, the end surface of the first limiting part away from the swing arm is configured as a plane. At position two, the first limiting part contacts and abuts against the adjacent swing arm through the plane, effectively increasing the contact area, thereby improving the carrying capacity and more reliably locking.

[0008] Further, an arc-shaped transition is configured between the end face of the first limiting portion away from the swing arm and the side face of the first limiting portion facing the inner side. By configuring the arc-shaped transition, not only is it beneficial to reduce the spacing between two adjacent swing arms in the parallelogram linkage mechanism, achieving a more compact structure, but also makes the first limiting portion less likely to interfere with the adjacent swing arm during the process of the connecting member from position two to position one, making the action process more stable and reliable.

[0009] Preferably, the parallelogram linkage mechanism comprises at least three adjacent swing arms, each swing arm being respectively configured with the first limiting portion. Not only can the locking effect be improved, but the carrying capacity can also be significantly improved.

[0010] The second aspect of the utility model solves the problem of accurately positioning the connecting member at position one, and further, at least one swing arm in the parallelogram linkage mechanism is also configured with a second limiting portion; at position one, the second limiting portion abuts against the adjacent swing arm. Through the cooperation of the second limiting portion and the adjacent swing arm, the positioning and limiting effects are achieved, which not only prevents the connecting member from continuing to rotate upward, so as to accurately position the connecting member at position one, but also helps to more firmly constrain the connecting member at position one.

[0011] Preferably, the length of the first limiting portion is greater than the length of the second limiting portion. In order to achieve better cooperation between the first limiting portion and the second limiting portion, they are less likely to interfere with each other.

[0012] Preferably, at least one swing arm in the parallelogram linkage mechanism is simultaneously configured with the first limiting portion and the second limiting portion. This is beneficial to simplify the structure and improve the reliability. The first limiting portion and the second limiting portion can be configured on the same side or different sides of the swing arm.

[0013] Preferably, the rescue wheels are divided into two groups, each group of rescue wheels comprising a plurality of rescue wheels rotatably mounted on the connecting member, and the two groups of rescue wheels are arranged on both sides of the length direction of the vehicle frame. In order to correspond to the walking surface of the track respectively.

[0014] Preferably, the power comprises a telescopic rod portion, and the connecting member is also configured with a matching portion adapted to the power. The power drives the connecting member to act through the cooperation of the rod portion and the matching portion. In this scheme, the connecting member moves along the length direction of the vehicle frame by the extension or retraction of the rod portion, and combined with the characteristics of the parallelogram mechanism, not only does the connecting member move along the length direction of the vehicle frame under the action of the power, but also moves downward in the direction away from the connecting member, so that the entire rescue structure can gradually lift the entire locomotive body, so that the rescue wheels contact the track, and the locked walking wheels can be separated from the track, which will not hinder the movement of the locomotive; moreover, it is beneficial to make the structure of the rescue device simpler and more compact.

[0015] Preferably, the power is a jack or an electric hydraulic cylinder. The stable performance, small size and large lifting power meet the requirements of rescue.

[0016] The third aspect of the utility model solves the problem of faster and more efficient unlocking of the rescue structure after the rescue is completed, and further comprises a guide module and an unlocking structure. The guide module comprises a first guide and a second guide matched with the first guide. The first guide is connected to the frame, and the second guide is movably constrained to the first guide. Each swing arm is rotatably connected to the second guide. The second guide, the swing arm and the connecting piece constitute a parallelogram lifting mechanism. The unlocking structure is used for locking and unlocking the parallelogram lifting mechanism. After unlocking, the second guide can move along the length direction of the frame relative to the first guide. In this scheme, the first guide and the second guide are configured. The second guide is movably constrained to the first guide, and each swing arm is rotatably connected to the second guide, so that the second guide, the swing arm and the connecting piece can constitute a parallelogram lifting mechanism. The parallelogram lifting mechanism has the freedom of movement relative to the locomotive body through the cooperation of the first guide and the second guide. The unlocking structure is used for locking and unlocking the parallelogram lifting mechanism, so that in the actual process, the unlocking structure locks the parallelogram lifting mechanism, so that the second guide cannot move relative to the first guide, and the position of the parallelogram lifting mechanism cannot change, which is beneficial to the stable rescue of the parallelogram lifting mechanism and the improvement of the carrying capacity of the parallelogram lifting mechanism. After the rescue is completed, the parallelogram lifting mechanism is unlocked, so that the second guide can move along the length direction of the frame relative to the first guide, so that the entire parallelogram lifting mechanism can be separated from the locomotive body. Not only can the walking wheel of the locomotive body fall to the ground more quickly and efficiently, but also the rescue structure can be separated from the locomotive body, so that the parallelogram lifting mechanism can be quickly and efficiently reset to the position one, so as to be used next time.

[0017] Preferably, the unlocking structure comprises a lock hole formed in the frame and a pin matched with the lock hole. The pin is detachably inserted into the lock hole. The end of the second guide corresponds to the side surface of the pin, and the second guide is limited and constrained between the two pins. When the pin is inserted into the lock hole, the second guide can be locked by the pin. When one side of the pin is pulled out, the second guide can be unlocked, so that the entire rescue structure can slide out from the side, which is very convenient and reliable.

[0018] To further enhance stability and load-bearing capacity, the system includes two sets of guide modules. Two first guide members in each guide module are arranged parallel to the length of the frame, and two second guide members are connected to the connecting members via swing arms. By configuring two sets of guide modules, the frame and the rescue structure can be connected through at least two sets of guide modules, which not only ensures a more even distribution of stress but also effectively improves load-bearing capacity.

[0019] Preferably, the first guide member is configured with a T-shaped groove, and the second guide member is configured as a T-shaped slide rail adapted to the T-shaped groove; or, the first guide member is configured with a T-shaped slide rail, and the second guide member is configured as a T-shaped groove adapted to the T-shaped slide rail.

[0020] A track system includes a track and a locomotive, the track having two running surfaces, the locomotive being adapted to the track, the locomotive's running wheels running along the track, and its rescue wheels corresponding to the lower running surface.

[0021] Compared with the prior art, the locomotive provided by this utility model has a self-locking function, which not only enables the entire locomotive to maintain a stable lifting state so as to complete the rescue work efficiently and stably; but also, after being lifted into place, the load of the entire locomotive is applied to the rescue structure and will not be applied to the power, thereby greatly reducing the load on the power during the rescue movement and effectively protecting the power. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an existing locomotive running inside a track cavity.

[0023] Figure 2 This is a schematic diagram of a locomotive running on a track, as provided in Embodiment 1, with the connecting piece located at position one.

[0024] Figure 3 The image shows a side view of a locomotive provided in Embodiment 1, with the connecting member located at one position.

[0025] Figure 4 The image shows a side view of a locomotive provided in Embodiment 1, with the connecting piece located at position two.

[0026] Figure 5 This is a side view of another locomotive provided in Embodiment 1, in which the connecting piece is located at position two.

[0027] Figure 6 This is a side view of another locomotive provided in Embodiment 1, in which the connecting member is located at position two.

[0028] Figure 7 This is a side view of another locomotive provided in Embodiment 1, in which the connecting member is located at position two.

[0029] Figure 8 for Figure 3 A partial schematic diagram of the parallelogram linkage mechanism.

[0030] Figure 9 This is a side view of a locomotive provided in Embodiment 2, in which the connecting member is located at one position.

[0031] Figure 10 This is a side view of a locomotive provided in Embodiment 2, in which the connecting piece is located at position two.

[0032] Figure 11 This is a schematic diagram of a locomotive running on a track, as provided in Embodiment 3. The connecting piece is located at position one.

[0033] Figure 12 for Figure 11 Side view of a locomotive.

[0034] The markings in the diagram are as follows: Frame 1, running wheel 11, stabilizing wheel 12, anti-collision component 13, lock hole 14; Power unit 2, rod 21; Connector 3, rescue wheel 31, mating part 33; parallelogram lifting mechanism 41, parallelogram linkage mechanism 42, swing arm 43, first limiting part 44, plane 441, arc transition 442, second limiting part 45, first swing arm 46, second swing arm 47, third swing arm 48, fourth swing arm 49; hinge 5; guide module 6, first guide 61, second guide 62, pin 63; track 7, running surface 71. Detailed Implementation

[0035] Example 1

[0036] This embodiment provides a locomotive, including a locomotive body and a rescue device. The locomotive body adopts a vehicle (or locomotive) from an existing suspended track system, such as... Figure 2 As shown, the locomotive body includes a frame 1, a drive module, a track-changing module, a control module, a braking module, etc. The drive module includes a motor and two sets of running wheels 11, which are respectively located on both sides of the frame 1. Figure 2 As shown, at least four traveling wheels 11 are used to support the entire locomotive body. The motor is connected to the traveling wheels 11 via a drive system. During operation, the traveling wheels 11 on both sides contact the two traveling surfaces 71 of the track 7, as shown... Figure 2 As shown, so that the traveling wheel 11 can be driven by power 2 to run along the track 7.

[0037] The frame 1 serves as the mounting base for other components, primarily providing load-bearing support. The front and rear ends of the frame 1 are typically equipped with anti-collision components 13, which may include anti-collision bars or beams. The lower end of the frame 1 is also equipped with stabilizer wheels 12.Figure 2 As shown, the lower end of the frame 1 is usually equipped with a suspension frame for suspending the car or cargo box.

[0038] In this embodiment, the rescue device includes a power source 2 and a rescue structure. The rescue structure includes a connector 3, at least three swing arms 43, and multiple rescue wheels 31. Each rescue wheel 31 can be divided into two groups, each group comprising multiple rescue wheels 31 rotatably mounted on the connector 3. The two groups of rescue wheels 31 are respectively arranged on both sides of the frame 1 along its length. Figure 2 and Figure 3 As shown, this corresponds to the running surface 71 of track 7. In practice, the rescue wheel 31 can be rotatably mounted to the connector 3 via hinges 5 such as axle components, pins, bolts, or screws.

[0039] In this embodiment, both ends of each swing arm 43 are rotatably connected to the frame 1 and the connector 3, respectively, so that the frame 1, the connector 3, and at least two swing arms 43 can form a parallelogram lifting mechanism 41. In the parallelogram lifting mechanism 41, the connector 3 can be raised and lowered relative to the frame 1, and can switch positions between position one and position two, thereby achieving the purpose of switching the state of the entire rescue structure. For ease of description, at position one, the swing arm 43 is inclined in the vertical direction, and the lower end of the rescue wheel 31 is higher than or flush with the lower end of the travel wheel 11. At this time, the rescue structure is in a non-load-bearing state or a retracted state, such as... Figure 3 As shown, at this time, the locomotive's running wheels 11 can run normally along the track 7, and the rescue wheels 31 do not affect the normal operation of the running wheels 11.

[0040] Correspondingly, at position two, the lower end of the rescue wheel 31 is lower than the lower end of the walking wheel 11, such as... Figure 4 As shown, at this time, each rescue wheel 31 can contact the running surface 71 of the track 7, and the entire locomotive can move along the track 7 through the rescue wheels 31, so as to use the rescue vehicle to push or pull away the locomotive on the track 7 that has been locked due to a malfunction, thereby achieving the purpose of more convenient and efficient transfer and rescue of the malfunctioning locomotive. During this process, each running wheel 11 cannot contact the running surface 71 of the track 7, so it does not affect the transfer and rescue process. At this time, the rescue structure is in the load-bearing state or the unfolded state, and the weight of the entire locomotive is supported by the rescue structure.

[0041] Since the entire locomotive needs to be raised during the switch from position one to position two, in practice, the power source 2 is connected to the rescue structure (such as the connecting member 3 or the swing arm 43) via a transmission connection. This allows the power source 2 to drive the connecting member 3, providing a dedicated driving force 2 to overcome the weight of the entire locomotive. In practice, the power source 2 includes a telescopic rod 21, and correspondingly, the connecting member 3 is also constructed with a mating part 33 adapted to the power source 2. The rod 21 and the mating part 33 cooperate, such as... Figure 3 and Figure 4 As shown, the power unit 2 can drive the connecting member 3 to move through the engagement of the rod 21 and the mating part 33. For example, the power unit 2 can be fixedly mounted on a bracket, which is rotatably mounted on the frame 1. Correspondingly, the rod 21 is rotatably connected to the connecting member 3 through the mating part 33. For instance, the rod 21 has a hinge hole, and the mating part 33 is a hinge hole constructed on the connecting member 3. Thus, the rod 21 and the connecting member 3 can be rotatably connected through the hinge 5 that fits the hinge hole. This allows the power unit 2 to drive the connecting member 3 to move through the extension of the rod 21, and to cause each swing arm 43 to rotate synchronously, allowing the connecting member 3 to move to position two, so that the entire locomotive body can be lifted using the rescue structure for transfer and rescue. As another example, the power unit 2 can be fixedly mounted to the frame 1, as shown in the figure. For example, it can be preferentially fixed to one end of the frame 1 and located outside the rescue structure. The rod 21 corresponds to the mating part 33 in the connector 3, and the extension and retraction direction of the rod 21 can preferably be consistent with the length direction of the frame 1. In this case, the mating part 33 can preferably be constructed as a mating plate of the connector 3, such as... Figure 3 and Figure 4 As shown, the extension of the lever 21 drives the connecting member 3 to move, causing each swing arm 43 to rotate synchronously. This allows the connecting member 3 to move to position two, enabling the rescue structure to lift the entire locomotive body for transfer and rescue. It is understood that in this embodiment, the mating part 33 should have sufficient height, at least so that during the movement of the connecting member 3 from a position where the lower end of the rescue wheel 31 is level with the lower end of the traveling wheel 11 to position two, the lever 21 can always correspond to the mating part 33 of the connecting member 3, ensuring the normal transmission of power 2 during the movement. In specific implementations, power 2 can preferably be achieved using a jack or an electric hydraulic cylinder. For example, a manual jack can be used, allowing rescue personnel to manually extend or retract the lever 21. Alternatively, an electric or pneumatic jack can be used for power 2, allowing for more effortless operation of the connecting member 3. It is understood that when power 2 is an electric hydraulic cylinder, and the locomotive body is powered down due to a malfunction, the electric hydraulic cylinder can draw power from the rescue vehicle; this will not be elaborated further here.

[0042] During implementation, since the swing arm 43 is tilted at position one, position two can be determined according to actual needs, as long as it can lift the entire locomotive body and cause the traveling wheels 11 to detach from the traveling surface 71 of the track 7. For example, at position two, the swing arm 43 can be in a vertical position. At this time, the weight of the entire locomotive body is transferred to the rescue wheel 31 below through each swing arm 43, and the power 2 is basically unaffected by the weight of the locomotive body, which can effectively protect the power 2. However, the state of the swing arm 43 is not stable at this time, and it is prone to tilting or even lifting failure during actual operation. Therefore, in this embodiment, the power 2 is mainly used to drive the swing arm 43 to rotate through the vertical direction and make the connecting piece 3 reach position two. That is to say, in this embodiment, at position two, the swing arm 43 has already rotated through the vertical direction, and the swing arm 43 is actually tilted in the vertical direction, such as Figure 4 As shown, at this time, the state of the swing arm 43 is unstable, and the power unit 2 bears a large load, affecting the stability and reliability of the rescue structure. To solve this technical problem, in this embodiment, at least two swing arms 43 are arranged adjacently and form a parallelogram linkage mechanism 42 with the frame 1 and the connecting member 3, as shown. Figure 3 As shown, at the same time, at least one swing arm 43 in the parallelogram linkage mechanism 42 is constructed with a first limiting part 44, such as Figure 3 As shown, when the connecting member 3 moves to position two under the action of power 2, the first limiting part 44 just abuts against the adjacent swing arm 43, as... Figure 4 As shown, on the one hand, since the swing arm 43 has already rotated past the vertical direction and is in an inclined state at position two, the swing arm 43 will not rotate in the opposite direction under the weight of the locomotive body; on the other hand, at position two, the first limiting part 44 is exactly abutting against the adjacent swing arm 43, so that the swing arm 43 will not continue to rotate in the forward direction under the weight of the power 2 or the locomotive body, thereby achieving the function of automatically locking the entire rescue structure. This not only allows the rescue structure to complete the rescue work stably and reliably, but also ensures that the power 2 is basically unaffected by the weight of the locomotive body, effectively protecting the power 2 and ensuring its service life.

[0043] In implementation, the number of swing arms 43 configured in the rescue structure can be determined according to actual needs, and can be 3, 4, 5, 6, etc. Correspondingly, the number of swing arms 43 configured in the parallelogram lifting mechanism 41 can be determined according to actual needs, and can be 2, 3, 4, 5, 6, etc. The more swing arms 43 there are, the stronger the load-bearing capacity and the more stable the load-bearing of the parallelogram lifting mechanism 41. Accordingly, the parallelogram lifting mechanism 41 and the parallelogram linkage mechanism 42 also have various cooperative implementation methods, which can be determined according to actual needs. In implementation, the parallelogram lifting mechanism 41 and the parallelogram linkage mechanism 42 can share at least one swing arm 43; for example, when the rescue structure is only configured with 3 swing arms 43, for ease of description, the 3 swing arms 43 are respectively the first swing arm 46, the second swing arm 47 and the third swing arm 48. At this time, the first swing arm 46 and the second swing arm 47 can be spaced apart and parallel along the length direction of the frame 1, such as... Figure 3 and Figure 4 As shown, at this time, the frame 1, the connector 3, the first swing arm 46 and the second swing arm 47 together constitute a parallelogram lifting mechanism 41. The third swing arm 48 can be set near the first swing arm 46. The first limiting part 44 can be constructed on the first swing arm 46 or the third swing arm 48, so that the frame 1, the connector 3, the first swing arm 46 and the third swing arm 48 together constitute a parallelogram linkage mechanism 42, so that the purpose of locking the rescue structure can be achieved by the cooperation of the first limiting part 44 with the corresponding first swing arm 46 or third swing arm 48.

[0044] It is understandable that, in practice, the third swing arm 48 can also be positioned close to the second swing arm 47, and the first limiting part 44 can be constructed on the second swing arm 47 or the third swing arm 48, so that the frame 1, the connecting part 3, the second swing arm 47 and the third swing arm 48 together form a parallelogram linkage mechanism 42, which can also achieve the same effect.

[0045] It is understandable that, in implementation, a third swing arm 48 can be respectively configured near the first swing arm 46 and the second swing arm 47, so as to form a parallelogram linkage mechanism 42 at the first swing arm 46 and the second swing arm 47 respectively, such as Figure 4 As shown, this not only achieves a better locking effect but also significantly improves the load-bearing capacity of the rescue structure at position two. At this point, the rescue structure is equipped with a total of four swing arms 43. Similarly, in implementation, multiple third swing arms 48 can be configured at the first swing arm 46 and the second swing arm 47 respectively, so that multiple sets of parallelogram linkage mechanisms 42 can be formed at the first swing arm 46 and the second swing arm 47 respectively, such as... Figure 7 As shown, this not only achieves a better locking effect, but also significantly improves the load-bearing capacity of the rescue structure at location two.

[0046] In implementation, the parallelogram lifting mechanism 41 and the parallelogram linkage mechanism 42 may not share the same swing arm 43. For example, in other embodiments, when the rescue structure is equipped with only four swing arms 43, for ease of description, the four swing arms 43 are respectively the first swing arm 46, the second swing arm 47, the third swing arm 48, and the fourth swing arm 49. In this case, the first swing arm 46 and the second swing arm 47 can be spaced apart and parallel along the length of the frame 1, such as... Figure 5 As shown, at this time, the frame 1, connecting part 3, first swing arm 46, and second swing arm 47 together constitute a parallelogram lifting mechanism 41. The third swing arm 48 and the fourth swing arm 49 can be arranged adjacent to each other at other positions that do not interfere with the first swing arm 46 and the second swing arm 47, such as... Figure 6 As shown, the first limiting part 44 is constructed on the third swing arm 48 or the fourth swing arm 49, so that the frame 1, the connecting member 3, the third swing arm 48, and the fourth swing arm 49 together form a parallelogram linkage mechanism 42, so that the locking of the rescue structure can be achieved through the cooperation of the first limiting part 44 with the corresponding third swing arm 48 or fourth swing arm 49. It can be understood that, in implementation, multiple parallel third swing arms 48 can be configured, each third swing arm 48 being constructed with a first limiting part 44, so that any two adjacent third swing arms 48 can form a parallelogram linkage mechanism 42, such as... Figure 6 As shown; similarly, multiple parallel fourth swing arms 49 can also be configured, such as... Figure 6 As shown, each of the fourth swing arms 49 is equipped with a first limiting part 44, so that two adjacent fourth swing arms 49 can form a parallelogram linkage mechanism 42, thereby significantly improving the load-bearing capacity and locking effect.

[0047] In implementation, the swing arm 43 can be positioned between the frame 1 and the connecting member 3, or preferably positioned on both sides of the frame 1 and / or the connecting member 3. It is understood that, in implementation, the number and position of the swing arms 43 in the parallelogram linkage mechanism 42, and the number and position of the swing arms 43 in the parallelogram lifting mechanism 41, can be determined according to actual needs, and will not be listed in detail here.

[0048] It is understandable that, in implementation, the first limiting part 44 can be constructed only in the swing arm 43 of the parallelogram linkage mechanism 42, while the first limiting part 44 is not constructed in the swing arm 43 of the parallelogram lifting mechanism 41, such as... Figure 3 As shown, the structure of the swing arm 43 in the parallelogram linkage mechanism 42 can differ from the structure of the swing arm 43 in the parallelogram lifting mechanism 41. However, in a simpler embodiment, the structure of the swing arm 43 in the parallelogram linkage mechanism 42 can be the same as the structure of the swing arm 43 in the parallelogram lifting mechanism 41, such as... Figure 7As shown, all the swing arms 43 are equipped with a first limiting part 44, which makes production and assembly easier.

[0049] In implementation, the first limiting part 44 can preferably be constructed on one side of the swing arm 43 and face the other swing arm 43 that cooperates with it, such as Figure 8 As shown, this helps to simplify the structure of the first limiting part 44.

[0050] In implementation, the end face of the first limiting part 44 facing away from the swing arm 43 is a plane 441, such as... Figure 8 As shown, at position two, the first limiting part 44 can contact and abut against the adjacent swing arm 43 through the plane 441, effectively increasing the contact area, thereby improving the load-bearing capacity and locking more reliably.

[0051] In a further embodiment, an arc-shaped transition 442 is constructed between the end face of the first limiting portion 44 facing away from the swing arm 43 and the side face of the first limiting portion 44 facing inward, such as... Figure 8 As shown, by constructing an arc transition 442, it is not only beneficial to reduce the distance between two adjacent swing arms 43 in the parallelogram linkage mechanism 42, thus achieving a more compact structure; but also makes it less likely for the first limiting part 44 to interfere with the adjacent swing arm 43 during the process of the connecting piece 3 moving from position two to position one, making the action process more stable and reliable.

[0052] In implementation, existing technologies can be used to achieve a rotatable connection between the two components. For example, both the swing arm 43 and the connecting member 3 are constructed with mutually compatible hinge holes, and a hinge member 5 adapted to the hinge hole passes through the hinge hole. The hinge member 5 can be a shaft component, pin, bolt, or screw, etc., thereby achieving a rotatable connection between the swing arm 43 and the connecting member 3 through the cooperation of the hinge member 5 and the hinge hole. Similarly, both the swing arm 43 and the frame 1 are constructed with mutually compatible hinge holes, and a hinge member 5 adapted to the hinge hole passes through the hinge hole. A rotatable connection between the swing arm 43 and the frame 1 can also be achieved through the cooperation of the hinge member 5 and the hinge hole. In implementation, the rescue wheel 31 can also be rotatably connected to the connecting member 3 via the same hinge member 5 to at least part of the swing arm 43.

[0053] It is understood that in this embodiment, each swing arm 43 can be directly and rotatably connected to the frame 1. For example, each swing arm 43 can be rotatably connected to the frame 1 through the engagement of the hinge hole and the hinge member 5. Alternatively, each swing arm 43 can be rotatably connected to the mounting bracket, and finally the mounting bracket is fixedly installed on the frame 1, thus indirectly connecting each swing arm 43 to the frame 1. In this case, the mounting bracket, the swing arm 43, and the connecting member 3 together form a parallelogram mechanism, which will not be elaborated further here. It is understood that in implementation, the power 2 can also only drive the swing arm 43 to rotate in the vertical direction.

[0054] Example 2

[0055] To solve the problem of accurately and quickly positioning the connector 3 at position one, the main difference between this embodiment 2 and the above-described embodiment 1 is that, in the locomotive provided in this embodiment, at least one swing arm 43 in the parallelogram linkage mechanism 42 is further constructed with a second limiting part 45; when the connector 3 is located at position one, the second limiting part 45 abuts against the adjacent swing arm 43, such as... Figure 9 and Figure 10 As shown. The second limiting part 45, in cooperation with the adjacent swing arm 43, plays a role in positioning and limiting. This not only prevents the connecting part 3 from continuing to rotate upward, so as to accurately and quickly position the connecting part 3 in one place, but also helps to more reliably constrain the connecting part 3 in one place.

[0056] In practice, the first limiting part 44 can be perpendicular to the length direction of the swing arm 43, such as... Figure 9 and Figure 10 As shown, this is to improve the load-bearing capacity; at the same time, the second limiting part 45 can also be perpendicular to the length direction of the swing arm 43, so that the first limiting part 44 can be parallel to the second limiting part 45.

[0057] In practice, the length of the first limiting part 44 is greater than the length of the second limiting part 45, such as... Figure 9 and Figure 10 As shown, this allows the first limiting part 44 and the second limiting part 45 to cooperate better, and the two are less likely to interfere with each other during operation.

[0058] In implementation, the first limiting part 44 and the second limiting part 45 in the parallelogram linkage mechanism 42 can be respectively constructed on the two swing arms 43. However, for ease of production and manufacturing, in implementation, at least one swing arm 43 in the parallelogram linkage mechanism 42 can be simultaneously constructed with the first limiting part 44 and the second limiting part 45, such as... Figure 9 and Figure 10 As shown, this simplifies the structure and improves reliability. In practice, the first limiting part 44 and the second limiting part 45 can be constructed on the same side or different sides of the swing arm 43.

[0059] Example 3

[0060] To address the issue of enabling rescuers to unlock the rescue structure more quickly and efficiently after a rescue operation, the main difference between this embodiment 3 and the previous embodiments is that the locomotive provided in this embodiment further includes a guide module 6 and an unlocking structure. The guide module 6 includes a first guide member 61 and a second guide member 62 adapted to the first guide member 61. The first guide member 61 is connected to the frame 1 and arranged along the length of the frame 1. In implementation, the first guide member 61 can be connected to the bottom of the locomotive or to the side of the frame 1, such as... Figure 11and Figure 12 As shown. The second guide member 62 is movably constrained by the first guide member 61. Due to the guiding effect of the first guide member 61, the second guide member 62 has the degree of freedom to move relative to the first guide member 61 along the length direction of the frame 1.

[0061] like Figure 11 and Figure 12 As shown, the upper ends of each swing arm 43 are rotatably connected to the second guide member 62, so that the second guide member 62, the swing arm 43 and the connecting member 3 can jointly form a parallelogram lifting mechanism 41 to play the role of lifting the rescue wheel 31; at the same time, the parallelogram lifting mechanism 41 has the freedom of movement relative to the locomotive body through the cooperation of the first guide member 61 and the second guide member 62.

[0062] In this embodiment, the unlocking structure is mainly used to lock and unlock the parallelogram lifting mechanism 41. In actual use, the unlocking structure can lock the second guide member 62, preventing the second guide member 62 from moving relative to the first guide member 61 and the frame 1, so that the rescue structure can be stably maintained in a fixed position on the frame 1, so as to achieve the rescue function more stably and smoothly. After the rescue is completed, the second guide member 62 can be unlocked by the unlocking structure. After unlocking, the second guide member 62 can move relative to the first guide member 61 along the length direction of the frame 1, so that the entire rescue structure can be separated from the locomotive body. This not only allows the locomotive body's wheels 11 to land more quickly and efficiently, but also allows the rescue structure to detach from the locomotive body, so that the parallelogram lifting mechanism 41 can be reset to a position more quickly and efficiently for the next use. After the rescue is completed, the locomotive can also be easily reinstalled on the first guide member 61 of the frame 1 and locked by the unlocking structure for the next use.

[0063] In implementation, the first guide member 61 can preferably be constructed as a strip, and correspondingly, the second guide member 62 can also preferably be constructed as a strip, such as... Figure 11 and Figure 12 As shown. In implementation, the guide module 6 can be implemented using existing technology, for example, the first guide member 61 is constructed with a T-shaped groove, such as... Figure 11 and Figure 12 As shown, correspondingly, the second guide member 62 is constructed as a T-shaped slide rail adapted to the T-shaped slide groove, so that the second guide member 62 can be movably constrained to the first guide member 61 through the cooperation of the T-shaped slide rail and the T-shaped slide groove. It can be understood that since the first guide member 61 is constructed with a T-shaped slide rail, the second guide member 62 is constructed as a T-shaped slide groove adapted to the T-shaped slide rail, which can also achieve the same effect, and will not be elaborated here.

[0064] In implementation, the unlocking structure can have various embodiments. For example, the unlocking structure may include a locking hole 14 constructed on the frame 1 and a pin 63 adapted to the locking hole 14. The locking hole 14 may be constructed outside the end of the first guide member 61, and the pin 63 may be detachably inserted into the locking hole 14. The end of the second guide member 62 corresponds to the side of the pin 63, such as... Figure 12 As shown, the two ends of the second guide member 62 are constrained between the two pins 63. In actual use, when the pins 63 are inserted into the locking hole 14, the second guide member 62 can be locked using the pins 63. When one side of the pin 63 is pulled out, the second guide member 62 can be unlocked, allowing the entire rescue structure to slide out from that side, which is very convenient and reliable. Alternatively, the unlocking structure may include a locking hole 14 constructed on the frame 1 or the first guide member 61 and a mating hole constructed on the second guide member 62. Initially, the locking hole 14 corresponds to the mating hole, so that the second guide member 62 can be locked using fasteners adapted to the locking hole 14 and the mating hole; when unlocking is needed, only the fasteners need to be removed, which is very convenient.

[0065] In implementation, one or more sets of guide modules 6 can be configured between the frame 1 and the rescue structure. For example, in this embodiment, two sets of guide modules 6 are included. Figure 11 As shown, the two first guide members 61 in the two sets of guide modules 6 are arranged parallel to each other along the length direction of the frame 1, and the two second guide members 62 in the two sets of guide modules 6 are connected to the connector 3 through the swing arm 43, so that the frame 1 and the rescue structure can be connected through at least two sets of guide modules 6, which can not only make the force distribution more uniform, but also effectively improve the load-bearing capacity and stability.

[0066] Example 4

[0067] This embodiment provides a track 7 system, including track 7 and the aforementioned locomotive. The track 7 includes two running surfaces 71, as shown in the figure. A cavity for accommodating the locomotive is formed above the running surfaces 71. The locomotive is constructed to fit the track 7. The locomotive's running wheels 11 contact the two running surfaces 71 respectively and run along the running surfaces 71. At this time, two sets of rescue wheels 31 correspond to the two running surfaces 71 respectively. When the running wheels 11 are locked and rescue is required, the rescue vehicle can move along the track 7 to one end of the locomotive. The power unit 2 located at that end is activated and drives the connecting member 3 to move to position two, so that the two sets of rescue wheels 31 contact the two running surfaces 71 respectively and lift the entire locomotive, causing the running wheels 11 to detach from the running surfaces 71. Thus, the rescue vehicle can be used to push or pull the locomotive along the track 7 to a designated position to achieve efficient rescue.

[0068] During implementation, track 7 can be erected in the air to form a suspended track 7 system.

[0069] The above description is only a specific embodiment of this utility model, but the protection scope of this 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A locomotive with a self-locking function, comprising a locomotive body, the locomotive body including a frame and running wheels disposed on both sides of the frame, characterized in that, It also includes a rescue device, which includes a power source and a rescue structure. The rescue structure includes a connector and at least three swing arms. The two ends of each swing arm are rotatably connected to the frame and the connector, respectively. The frame, the connector, and at least two swing arms form a parallelogram lifting mechanism. The connector can switch between position one and position two. At least two swing arms are arranged adjacent to each other and form a parallelogram linkage mechanism with the vehicle frame and connecting parts. At least one swing arm in the parallelogram linkage mechanism has a first limiting part. The power supply is connected to the connecting parts, which are equipped with rescue wheels to support the locomotive body; At position one, the lower end of the rescue wheel is higher than or flush with the lower end of the travel wheel; power is used at least to drive the swing arm to rotate in the vertical direction and bring the connector to position two; at position two, the first limiting part abuts against the adjacent swing arm, and the lower end of the rescue wheel is lower than the lower end of the travel wheel.

2. The locomotive with self-locking function according to claim 1, characterized in that, The first limiting part is constructed on one side of the swing arm and faces the other swing arm that cooperates with it.

3. The locomotive with self-locking function according to claim 1, characterized in that, At least one swing arm in the parallelogram linkage mechanism is also provided with a second limiting part; at one position, the second limiting part abuts against the adjacent swing arm.

4. The locomotive with self-locking function according to claim 3, characterized in that, The length of the first limiting part is greater than the length of the second limiting part; And / or, at least one swing arm in the parallelogram linkage mechanism is simultaneously constructed with a first limiting part and a second limiting part.

5. The locomotive with self-locking function according to claim 1, characterized in that, The power source includes a telescopic rod, and the connector is also equipped with a mating part adapted to the power source. The power source drives the connector to move through the interaction between the rod and the mating part.

6. The locomotive with self-locking function according to claim 5, characterized in that, The rescue wheels are divided into two groups, each group of which includes multiple rescue wheels that are rotatably mounted on the connector. The two groups of rescue wheels are respectively arranged on both sides of the vehicle frame in the length direction. And / or, the power source is a jack or an electric hydraulic cylinder; And / or, the end face of the first limiting part away from the swing arm is planar; And / or, there is an arc-shaped transition between the end face of the first limiting part away from the swing arm and the side face of the first limiting part facing inward.

7. The locomotive with self-locking function according to any one of claims 1-6, characterized in that, The rescue device also includes a guide module and an unlocking structure. The guide module includes a first guide member and a second guide member adapted to the first guide member. The first guide member is connected to the vehicle frame, and the second guide member is movablely constrained by the first guide member. Each swing arm is rotatably connected to the second guide member, and the second guide member, swing arms and connecting members constitute a parallelogram lifting mechanism. The unlocking structure is used to lock and unlock the parallelogram lifting mechanism, and after unlocking, the second guide member can move relative to the first guide member along the length of the frame.

8. The locomotive with self-locking function according to claim 7, characterized in that, The unlocking structure includes a lock hole constructed on the frame and a pin adapted to the lock hole. The pin is detachably inserted into the lock hole. The end of the second guide corresponds to the side of the pin, and the second guide is limited and constrained between the two pins. And / or, including two sets of guide modules, wherein two first guide members in the two sets of guide modules are respectively arranged parallel to each other along the length direction of the frame, and two second guide members in the two sets of guide modules are respectively connected to the connectors through swing arms.

9. The locomotive with self-locking function according to claim 7, characterized in that, The first guide member is constructed with a T-shaped groove, and the second guide member is constructed as a T-shaped slide rail adapted to the T-shaped groove; Alternatively, the first guide member may be constructed with a T-shaped slide rail, and the second guide member may be constructed with a T-shaped groove adapted to the T-shaped slide rail.

10. A track system comprising a track, the track including two running surfaces, characterized in that, It also includes the locomotive as described in any one of claims 1-9, the locomotive being adapted to the track, the locomotive's running wheels running along the track, and the rescue wheels corresponding to the running surface below.

Images