Carriage bottom traction pin special for railway locomotive

Abstract

The utility model relates to the technical field of railway locomotive traction pins, and discloses a railway locomotive special carriage bottom traction pin which comprises a first mounting plate, a first bolt is in threaded connection with the interior of the first mounting plate, a connecting mechanism is arranged on the right side of the first mounting plate, and a limiting mechanism is arranged on the right side of the first mounting plate. The connecting mechanism comprises a first protective shell, the first protective shell is fixedly connected to the right side of the first mounting plate, and a first fixing pin is fixedly connected into the first protective shell. When the first coupler knuckle and the second coupler knuckle make contact with each other, the first coupler knuckle and the second coupler knuckle can rotate on the peripheries of the first fixing pin and the second fixing pin at the same time till the first coupler knuckle and the second coupler knuckle make contact with each other and are folded together, and then the two carriages can be connected.

Description

Technical Field

[0001] The utility model relates to the technical field of railway locomotive draw pins, and particularly relates to a special draw pin for the bottom of a railway locomotive carriage. Background Art

[0002] The draw pin at the bottom of the carriage is a key component used to connect various parts of a railway vehicle or a road semi-trailer. In railway vehicles, the draw pin is used to connect adjacent carriages so that they can move together. The draw pin at the bottom of a special railway locomotive carriage is a key component used to connect the carriages and transmit the traction force. The design and function of the draw pin are crucial for ensuring the safety and reliability of train operation.

[0003] As described in a draw center pin of a train traction system (authorization announcement number: CN205905988U) published on the patent network, the draw center pin of this train traction system includes "positioning ear plates, conical bodies", etc. to connect the carriages.

[0004] In view of the above description, the applicant believes that the following problems exist:

[0005] The draw center pin of this train traction system uses positioning ear plates, conical bodies, etc. to connect the carriages. Only by using the positioning ear plates and conical bodies to connect the carriages, the conical body cannot be limited, the safety is low, and the stability of the connection between the two carriages cannot be guaranteed, affecting the use effect. Therefore, this center pin needs to be improved. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a special draw pin for the bottom of a railway locomotive carriage to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A special draw pin for the bottom of a railway locomotive carriage, including a first mounting plate, a first bolt is threadedly connected inside the first mounting plate, a connection mechanism is arranged on the right side of the first mounting plate, and a limiting mechanism is arranged on the right side of the first mounting plate;

[0008] The connection mechanism includes a first protective shell fixedly connected to the right side of the first mounting plate, a first fixing pin fixedly connected inside the first protective shell, a first hook tongue rotatably connected to the periphery of the first fixing pin, the first hook tongue is rotatably connected inside the first protective shell, a second hook tongue is arranged inside the first hook tongue, a second fixing pin is rotatably connected inside the second hook tongue, a second protective shell is fixedly connected to the periphery of the second fixing pin, the second hook tongue is rotatably connected inside the second protective shell, a second mounting plate is fixedly connected to the right side of the second protective shell, and a second bolt is threadedly connected inside the second mounting plate.

[0009] Preferably, the first hook tongue and the second hook tongue are of the same size, and the inner sides of the first hook tongue and the second hook tongue are in contact with each other, facilitating the connection of two carriages by making the first hook tongue and the second hook tongue contact each other.

[0010] Preferably, moving grooves are respectively formed in the first protective shell and the second protective shell, and the first hook tongue and the second hook tongue are respectively rotatably connected in the moving grooves, facilitating the limiting effect on the first hook tongue and the second hook tongue respectively through the moving grooves, making the rotation more stable.

[0011] Preferably, six first bolts and six second bolts are respectively provided, and the six first bolts and second bolts are respectively threadedly connected to the inside of the first mounting plate and the second mounting plate, facilitating the fixed connection between the first mounting plate and the second mounting plate and the railway locomotive carriage respectively under the action of the first bolts and the second bolts, ensuring the stability of the first mounting plate and the second mounting plate.

[0012] Preferably, the limiting mechanism includes a fixed block, the fixed block is fixedly connected to the right side of the first mounting plate, a connecting block is fixedly connected to the right side of the fixed block, a cylinder is fixedly connected to the top of the connecting block, a connecting plate is fixedly connected to the bottom of the cylinder, a locking pin is fixedly connected to the bottom of the connecting plate, and the locking pin is inserted into the first hook tongue.

[0013] Preferably, the locking pin penetrates through the first protective shell, inserting slots are respectively formed in the first protective shell and the first hook tongue, and the two inserting slots correspond to each other, and the locking pin is inserted into the inserting slot, facilitating the limiting effect on the locking pin through the inserting slot, and simultaneously the locking pin can respectively limit the first hook tongue and the second hook tongue.

[0014] Preferably, two sets of the fixed block, the cylinder, the connecting block, the connecting plate and the locking pin are provided, and the two sets of the fixed block, the cylinder, the connecting block, the connecting plate and the locking pin are respectively arranged on the right side of the first mounting plate and the left side of the second mounting plate, and the two sets of locking pins are respectively inserted into the first hook tongue and the second hook tongue, facilitating the limiting effect on the first hook tongue and the second hook tongue respectively through the two sets, making the state between the first hook tongue and the second hook tongue stable.

[0015] Compared with the prior art, the utility model provides a bottom draw pin for a special carriage of a railway locomotive, having the following beneficial effects:

[0016] 1. The traction pin at the bottom of the special carriage for railway locomotives can be connected between two carriages under the action of the first hook tongue, the second hook tongue, the first fixing pin and the second fixing pin through the provided connecting mechanism. When the first hook tongue and the second hook tongue come into contact with each other, they will rotate around the first fixing pin and the second fixing pin respectively until the first hook tongue and the second hook tongue come into contact and close together, thus enabling the connection between the two carriages. The operation is convenient, and the first hook tongue and the second hook tongue are concave-shaped. When they close, they will be tightly hooked together, with high safety and stability.

[0017] 2. The traction pin at the bottom of the special carriage for railway locomotives can limit the first hook tongue and the second hook tongue under the action of the cylinder, the connecting plate and the locking pin through the provided limiting mechanism when the first hook tongue and the second hook tongue come into contact and are connected with each other, so as to avoid the rotation of the first hook tongue and the second hook tongue around the first fixing pin and the second fixing pin after connection. Through the limitation, the stability of the connection between two special carriages for railway locomotives can be ensured, the connection effect can be improved, the operation is convenient, and at the same time, it is convenient to release the limitation on the first hook tongue and the second hook tongue to separate the two carriages. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0020] Figure 2 It is a top view structure schematic diagram of the present invention;

[0021] Figure 3 It is a structure schematic diagram of the connecting mechanism;

[0022] Figure 4 It is a sectional structure schematic diagram of the first protective shell and the second protective shell;

[0023] Figure 5 It is a structure schematic diagram of the limiting mechanism.

[0024] In the figure: 1. First mounting plate; 2. First bolt; 3. Connecting mechanism; 4. Limiting mechanism; 31. First protective shell; 32. Second protective shell; 33. Second mounting plate; 34. Second bolt; 35. First hook tongue; 36. First fixing pin; 37. Second hook tongue; 38. Second fixing pin; 41. Fixed block; 42. Cylinder; 43. Connecting block; 44. Connecting plate; 45. Locking pin. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] The present invention provides the following technical solutions:

[0028] Embodiment 1

[0029] Please refer to Figures 1-5 , the present invention provides a technical solution: a traction pin at the bottom of a special carriage for railway locomotives, including a first mounting plate 1, a first bolt 2 is threadedly connected inside the first mounting plate 1, a connecting mechanism 3 is arranged on the right side of the first mounting plate 1, and a limiting mechanism 4 is arranged on the right side of the first mounting plate 1;

[0030] The connecting mechanism 3 includes a first protective shell 31, the first protective shell 31 is fixedly connected to the right side of the first mounting plate 1, a first fixing pin 36 is fixedly connected inside the first protective shell 31, a first hook tongue 35 is rotatably connected around the first fixing pin 36, the first hook tongue 35 is rotatably connected inside the first protective shell 31, a second hook tongue 37 is arranged inside the first hook tongue 35, a second fixing pin 38 is rotatably connected inside the second hook tongue 37, a second protective shell 32 is fixedly connected around the second fixing pin 38, the second hook tongue 37 is rotatably connected inside the second protective shell 32, and a second mounting plate 33 is fixedly connected to the right side of the second protective shell 32, and a second bolt 34 is threadedly connected inside the second mounting plate 33.

[0031] The first hook tongue 35 and the second hook tongue 37 are of the same size. The inner sides of the first hook tongue 35 and the second hook tongue 37 are in contact with each other. By making the first hook tongue 35 and the second hook tongue 37 contact each other, the two carriages can be connected. Activity grooves are respectively formed in the first protective shell 31 and the second protective shell 32. The first hook tongue 35 and the second hook tongue 37 are respectively rotatably connected in the activity grooves, so that the activity grooves can respectively limit the first hook tongue 35 and the second hook tongue 37 to make the rotation more stable. Six first bolts 2 and six second bolts 34 are respectively provided. The six first bolts 2 and the six second bolts 34 are respectively threadedly connected to the inside of the first mounting plate 1 and the second mounting plate 33, so that under the action of the first bolts 2 and the second bolts 34, the first mounting plate 1 and the second mounting plate 33 are respectively fixedly connected to the railway locomotive carriage to ensure the stability of the first mounting plate 1 and the second mounting plate 33.

[0032] Embodiment 2

[0033] Please refer to Figures 1-5 , and on the basis of Embodiment 1, a limiting mechanism 4 is further obtained. The limiting mechanism 4 includes a fixed block 41. The fixed block 41 is fixedly connected to the right side of the first mounting plate 1. A connecting block 43 is fixedly connected to the right side of the fixed block 41. A cylinder 42 is fixedly connected to the top of the connecting block 43. A connecting disk 44 is fixedly connected to the bottom of the cylinder 42. A locking pin 45 is fixedly connected to the bottom of the connecting disk 44. The locking pin 45 is inserted into the first hook tongue 35. The locking pin 45 penetrates through the first protective shell 31. Slots are respectively formed in the first protective shell 31 and the first hook tongue 35, and the two slots correspond to each other. The locking pin 45 is inserted into the slots, so that the slots can limit the locking pin 45, and at the same time, the locking pin 45 can respectively limit the first hook tongue 35 and the second hook tongue 37. Two sets of the fixed block 41, the cylinder 42, the connecting block 43, the connecting disk 44 and the locking pin 45 are provided. The two sets of the fixed block 41, the cylinder 42, the connecting block 43, the connecting disk 44 and the locking pin 45 are respectively arranged on the right side of the first mounting plate 1 and the left side of the second mounting plate 33, and the two sets of locking pins 45 are respectively inserted into the first hook tongue 35 and the second hook tongue 37, so that by arranging two sets, the first hook tongue 35 and the second hook tongue 37 can be respectively limited to make the first hook tongue 35 and the second hook tongue 37 in a stable state.

[0034] In the actual operation process, when this device is used, first, the first mounting plate 1 and the second mounting plate 33 are respectively fixed on two carriages through the first bolt 2 and the second bolt 34 to ensure the stability of the first protective shell 31 and the second protective shell 32. When it is necessary to connect the two carriages, make the two carriages move relatively slowly. During the movement, when the first hook tongue 35 and the second hook tongue 37 come into contact, the first hook tongue 35 and the second hook tongue 37 will respectively rotate around the first fixing pin 36 and the second fixing pin 38, and at the same time rotate in the moving grooves inside the first protective shell 31 and the second protective shell 32 until the first hook tongue 35 and the second hook tongue 37 are in contact with each other and closed together, then the connection between the two carriages can be achieved. When the first hook tongue 35 and the second hook tongue 37 are in contact with each other, the cylinder 42 drives the connection disk 44 and the locking pin 45 to move up and down, so that the locking pin 45 is respectively inserted into the first hook tongue 35 and the second hook tongue 37 to prevent the first hook tongue 35 and the second hook tongue 37 from rotating around the first fixing pin 36 and the second fixing pin 38 after connection. Through the limit, the stability of the connection between two special railway locomotive carriages can be ensured, the connection effect can be improved, and the operation is convenient. At the same time, when the locking pin 45 releases the limit on the first hook tongue 35 and the second hook tongue 37, the two carriages can be separated.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A traction pin for a railway locomotive carriage bottom, comprising a first mounting plate (1), characterized in that: The first mounting plate (1) is internally threadedly connected with a first bolt (2), a connecting mechanism (3) is provided on the right side of the first mounting plate (1), and a limiting mechanism (4) is provided on the right side of the first mounting plate (1); The connecting mechanism (3) comprises a first protective shell (31), the first protective shell (31) is fixedly connected to the right side of the first mounting plate (1), a first fixing pin (36) is fixedly connected inside the first protective shell (31), a first hook tongue (35) is rotatably connected to the periphery of the first fixing pin (36), the first hook tongue (35) is rotatably connected to the first protective shell (31), a second hook tongue (37) is arranged inside the first hook tongue (35), a second fixing pin (38) is rotatably connected inside the second hook tongue (37), the periphery of the second fixing pin (38) is fixedly connected to the second protective shell (32), the second hook tongue (37) is rotatably connected to the second protective shell (32), a second mounting plate (33) is fixedly connected to the right side of the second protective shell (32), and a second bolt (34) is threadedly connected to the inside of the second mounting plate (33).

2. A railway locomotive special carriage bottom traction pin according to claim 1, characterized in that: The first hook tongue (35) and the second hook tongue (37) have the same size, and the inner side of the first hook tongue (35) and the inner side of the second hook tongue (37) are in contact with each other.

3. The bottom traction pin for a railway locomotive carriage according to claim 1, characterized in that: The first protective shell (31) and the second protective shell (32) are respectively provided with movable grooves, and the first hook tongue (35) and the second hook tongue (37) are respectively rotatably connected in the movable grooves.

4. The bottom traction pin for railway locomotive carriage according to claim 1, characterized in that: Six first bolts (2) and six second bolts (34) are provided respectively, and the six first bolts (2) and six second bolts (34) are respectively threadedly connected to the inside of the first mounting plate (1) and the second mounting plate (33).

5. The bottom traction pin for railway locomotive carriage according to claim 1, characterized in that: The limiting mechanism (4) comprises a fixing block (41), the fixing block (41) is fixedly connected to the right side of the first mounting plate (1), a connecting block (43) is fixedly connected to the right side of the fixing block (41), a cylinder (42) is fixedly connected to the top of the connecting block (43), a connecting plate (44) is fixedly connected to the bottom of the cylinder (42), a locking pin (45) is fixedly connected to the bottom of the connecting plate (44), and the locking pin (45) is inserted into the interior of the first hook tongue (35).

6. A railway locomotive special carriage bottom traction pin according to claim 5, characterized in that: The locking pin (45) passes through the first protective shell (31), and slots are respectively provided inside the first protective shell (31) and the first hook tongue (35), and the two slots correspond to each other, and the locking pin (45) is inserted into the slots.

7. The bottom traction pin for a railway locomotive carriage according to claim 5, characterized in that: The fixing block (41), the cylinder (42), the connecting block (43), the connecting disk (44) and the locking pin (45) are provided in two groups. The two groups of the fixing block (41), the cylinder (42), the connecting block (43), the connecting disk (44) and the locking pin (45) are respectively provided on the right side of the first mounting plate (1) and the left side of the second mounting plate (33), and the two groups of the locking pins (45) are respectively inserted into the first hook tongue (35) and the second hook tongue (37).

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