Door lock device of railway freight open wagon

Abstract

The utility model discloses a door lock device of a railway freight open wagon, and relates to the technical field of railway freight. The railway freight open wagon door lock device comprises an open wagon, an open wagon opening is formed in the front side of the open wagon, two sets of wagon doors are installed on the outer wall of the front side of the open wagon in a hinged mode, the two sets of wagon doors are symmetrically arranged front and back, lock boxes are fixedly installed on the front sides of the wagon doors, and the railway freight open wagon door lock device further comprises self-locking structures installed on the open wagon, the wagon doors and the lock boxes. According to the door lock device of the railway freight open wagon, the door can be automatically locked through the self-locking structure, manual locking of workers is not needed, the self-locking structure adopts an up-down fixing mode, deformation of the door can be effectively avoided, goods are prevented from flowing out of a gap between the door and the open wagon, and through cooperation with the unlocking structure, the door lock device is convenient to use. The automobile door can be unlocked, forward pushing force can be applied to the automobile door through the pushing structure, and if the automobile door is not closed and locked, a worker can clearly know whether the automobile door is closed or not, so that the automobile door is prevented from being unlatched.

Description

Technical Field

[0001] The utility model relates to the technical field of railway freight transportation, in particular to a door locking device for an open railway freight car. Background Art

[0002] A gondola is a type of railway freight car characterized by its lack of a roof and four side panels, two of which have retractable doors for easy unloading. This type of car is primarily used to transport bulk cargo such as coal and ballast, which are weather-resistant. Gondolas are primarily used to transport bulk cargo such as coal, ore, mining and construction materials, lumber, and steel, as well as light machinery.

[0003] However, the doors of existing open wagons are locked by latch-type door locks, which are generally located in the middle of the door surface to facilitate operation by staff. However, such latch-type door locks and their installation method may cause the door to deform due to the pressure of the cargo inside the open wagon on the door, resulting in gaps between the top and bottom of the door and the open wagon opening, allowing cargo to flow out of the gaps. Utility Model Content

[0004] The purpose of the present utility model is to provide a door locking device for an open railway freight car to solve the problems and defects raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a door locking device for an open car for railway freight, comprising an open car, an open car opening being opened on the front side of the open car, two groups of doors being hingedly installed on the front outer wall of the open car, the two groups of doors being symmetrically arranged front to back, a lock box being fixedly installed on the front side of the door, and a self-locking structure being installed on the open car, the door and the lock box, which is used to fix the door to the open car opening through the self-locking structure, an unlocking structure being installed on the lock box and the fixing plate, which is used to open and close the open car opening through the unlocking structure, and a pushing structure being installed on the rear side of the door, which is used to push the door through the pushing structure.

[0006] Preferably, the self-locking structure includes a fixed plate, an insertion rod, a connecting block, a spring A, and a fixed block. The fixed plate is fixedly installed on the inner wall of the lock box, the insertion rod is slidably installed on the top of the lock box and the fixed plate, the connecting block is fixedly installed on the outer wall of the insertion rod, the spring A is sleeved on the outer wall of the insertion rod, and the spring A is located between the fixed plate and the connecting block, and the fixed block is fixedly installed on the front side of the open car. There are two groups of fixed plates, insertion rods, connecting blocks, springs A, and fixed blocks and they are arranged in a circular array. In the process of closing the car door, the car door can be automatically locked without the need for manual locking by the staff. Moreover, the self-locking structure adopts an upper and lower fixing method, which can effectively prevent the car door from being deformed and prevent the cargo from flowing out of the gap between the car door and the open car.

[0007] Preferably, the fixing block is provided with a socket, one end of the plug rod is inserted into the socket, and one end of the plug rod is arranged in an arc shape.

[0008] Preferably, the unlocking structure includes a rotating shaft, a gear, a rack, and a handle. The rotating shaft is fixedly installed between the vehicle door and the lock box, the gear is rotatably installed on the outer wall of the rotating shaft, the rack is fixedly installed on the outer wall of the gear, and the rack is engaged with the gear. The handle is fixedly installed on one end of the rotating shaft. The handle is located on the front side of the lock box, and can unlock the vehicle door and open and close the vehicle door, which facilitates the safe transportation of goods.

[0009] Preferably, the pushing structure includes a mounting block, an externally threaded barrel, a pushing block, a movable block and a spring B. The mounting block is fixedly mounted on the inner top of the open car, a threaded hole is provided on the front side of the mounting block, the externally threaded barrel is threadedly mounted in the threaded hole, the pushing block is slidably mounted on the front side of the externally threaded barrel, the movable block is fixedly mounted on the rear side of the pushing block, the spring B is fixedly mounted on the rear side of the movable block, and the movable block and the spring B are located on the inner side of the externally threaded barrel, which can apply a forward pushing force to the car door. If the car door fails to close and lock, the car door can be popped out of the open car opening, so that the staff can clearly know whether the car door is closed to prevent the car door from being ajar.

[0010] Preferably, the front side of the push block contacts the rear side of the vehicle door.

[0011] Preferably, a guide block is slidably mounted on the outer wall of the insertion rod, and the guide block is fixedly mounted on the front side of the vehicle door.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The railway freight open car door locking device, through the self-locking structure, can automatically lock the car door during the process of closing the car door, without the need for manual locking by the staff, and the self-locking structure adopts an upper and lower fixing method, which can effectively prevent the car door from being deformed and prevent the goods from flowing out from the gap between the car door and the open car. Then, by cooperating with the unlocking structure, the car door can be unlocked and opened and closed, which is convenient for the safe transportation of goods. The pushing structure can apply a forward pushing force to the car door. If the car door fails to close and lock, the car door can be ejected from the open car mouth, so that the staff can clearly know whether the car door is closed to prevent the car door from being ajar. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the propulsion structure of the utility model;

[0017] Figure 3 This is a cross-sectional view of the lock box of the utility model;

[0018] Figure 4 This is an exploded view of the propulsion structure of the utility model;

[0019] Figure 5 It is a cross-sectional view of the externally threaded barrel of the utility model.

[0020] Figure numerals: 1. open car; 2. car door; 3. lock box; 4. fixing plate; 5. insertion rod; 6. connecting block; 7. spring A; 8. fixing block; 9. rotating shaft; 10. gear; 11. rack; 12. handle; 13. guide block; 14. mounting block; 15. external threaded cylinder; 16. push block; 17. movable block; 18. spring B. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] See also Figure 1-5 The utility model provides a technical solution: a door locking device for an open railway freight car, comprising an open car 1, an open car opening being opened on the front side of the open car 1, two sets of doors 2 being hingedly installed on the front outer wall of the open car 1, the two sets of doors 2 being symmetrically arranged front to back, a lock box 3 being fixedly installed on the front side of the door 2, and further comprising a self-locking structure installed on the open car 1, the door 2, and the lock box 3, for fixing the door 2 on the open car opening through the self-locking structure, an unlocking structure installed on the lock box 3 and the fixing plate 4, for opening and closing the open car opening through the unlocking structure, and a pushing structure installed on the rear side of the door 2, for pushing the door 2 through the pushing structure.

[0023] The self-locking structure includes a fixing plate 4, an insertion rod 5, a connecting block 6, a spring A7, and a fixing block 8. The fixing plate 4 is fixedly mounted on the inner wall of the lock box 3, the insertion rod 5 is slidably mounted on the top of the lock box 3 and the fixing plate 4, the connecting block 6 is fixedly mounted on the outer wall of the insertion rod 5, the spring A7 is sleeved on the outer wall of the insertion rod 5, and the spring A7 is located between the fixing plate 4 and the connecting block 6, and the fixing block 8 is fixedly mounted on the front side of the open car 1. There are two groups of fixing plates 4, insertion rod 5, connecting block 6, spring A7, and fixing block 8 and they are arranged in a circular array. In the process of closing the car door 2, due to the push of the spring A7 on the connecting block 6 and the insertion rod 5, one end of the insertion rod 5 can be inserted into the socket, and the car door 2 is automatically closed without the need for manual locking by the staff. Moreover, the self-locking structure adopts an upper and lower fixing method, which can effectively prevent the car door 2 from deformation and prevent the cargo from flowing out of the gap between the car door 2 and the open car 1.

[0024] The fixing block 8 is provided with an inserting hole, one end of the inserting rod 5 is inserted into the inserting hole, and one end of the inserting rod 5 is arranged in an arc shape.

[0025] The unlocking structure includes a rotating shaft 9, a gear 10, a rack 11, and a handle 12. The rotating shaft 9 is fixedly installed between the car door 2 and the lock box 3. The gear 10 is rotatably installed on the outer wall of the rotating shaft 9. The rack 11 is fixedly installed on the outer wall of the gear 10, and the rack 11 is engaged with the gear 10. The handle 12 is fixedly installed at one end of the rotating shaft 9. The handle 12 is located on the front side of the lock box 3. The handle 12 is manually twisted, and the handle 12 drives the rotating shaft 9 and the gear 10 to rotate. The rotation of the gear 10 drives the rack 11 and the insertion rod 5 to move, and one end of the insertion rod 5 can be removed from the socket of the fixed block 8, so that the handle 12 and the car door 2 can be manually pulled outward to open and close the car door 2.

[0026] The pushing structure includes a mounting block 14, an externally threaded cylinder 15, a pushing block 16, a movable block 17 and a spring B18. The mounting block 14 is fixedly mounted on the inner top of the open car 1. A threaded hole is provided on the front side of the mounting block 14. The externally threaded cylinder 15 is threadedly mounted in the threaded hole. The pushing block 16 is slidably mounted on the front side of the externally threaded cylinder 15. The movable block 17 is fixedly mounted on the rear side of the pushing block 16. The spring B18 is fixedly mounted on the rear side of the movable block 17, and the movable block 17 and the spring B18 are located on the inner side of the externally threaded cylinder 15. In the process of closing the car door 2, the spring B18 pushes the movable block 17 and the pushing block 16 forward, and the pushing block 16 pushes the car door 2 forward. If the car door 2 fails to close and lock, the car door 2 can be ejected from the open car opening, so that the staff can clearly know whether the car door 2 is closed to prevent the car door 2 from being ajar.

[0027] The front side of the push block 16 is in contact with the rear side of the vehicle door 2 .

[0028] A guide block 13 is slidably mounted on the outer wall of the insertion rod 5 , and the guide block 13 is fixedly mounted on the front side of the vehicle door 2 .

[0029] Working principle: By manually twisting the handle 12, the handle 12 drives the rotating shaft 9 and the gear 10 to rotate, and the rotation of the gear 10 drives the rack 11 and the insertion rod 5 to move, so that one end of the insertion rod 5 can be moved out of the socket of the fixed block 8, so that the handle 12 and the car door 2 can be manually pulled outward to open and close the car door 2. In the process of closing the car door 2, due to the push of the spring A7 on the connecting block 6 and the insertion rod 5, one end of the insertion rod 5 can be inserted into the socket to close the car door 2. In the process of closing the car door 2, the spring B18 pushes the movable block 17 and the push block 16 forward, and the push block 16 pushes the car door 2 forward. If the car door 2 is closed, the car door 2 can be pushed out from the open car mouth, so that the staff can clearly judge whether the car door 2 is closed.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A door lock device for a railway freight car, comprising a car (1), a car opening being provided on the front side of the car (1), two sets of doors (2) being hingedly mounted on the front outer wall of the car (1), the two sets of doors (2) being symmetrically arranged front and back, a lock box (3) being fixedly mounted on the front side of the door (2), and characterized in that: Also includes: A self-locking structure installed on the open car (1), the car door (2), and the lock box (3), and used to fix the car door (2) on the open car opening through the self-locking structure; An unlocking structure installed on the lock box (3) and the fixing plate (4), which is used to open and close the open vehicle opening; A pushing structure is installed on the rear side of the vehicle door (2), and is used to push the vehicle door (2).

2. A railway freight car door locking device according to claim 1, characterized in that: The self-locking structure comprises a fixed plate (4), an inserting rod (5), a connecting block (6), a spring A (7), and a fixed block (8); the fixed plate (4) is fixedly mounted on the inner wall of the lock box (3); the inserting rod (5) is slidably mounted on the top of the lock box (3) and the fixed plate (4); the connecting block (6) is fixedly mounted on the outer wall of the inserting rod (5); the spring A (7) is sleeved on the outer wall of the inserting rod (5), and the spring A (7) is located between the fixed plate (4) and the connecting block (6); the fixed block (8) is fixedly mounted on the front side of the open car (1); the fixed plate (4), the inserting rod (5), the connecting block (6), the spring A (7), and the fixed block (8) are all in two groups and are arranged in a ring array.

3. The door locking device for an open railway freight car according to claim 2, characterized in that: The fixing block (8) is provided with an insertion hole, one end of the insertion rod (5) is inserted into the insertion hole, and one end of the insertion rod (5) is arranged in an arc shape.

4. The railway freight car door locking device according to claim 3, characterized in that: The unlocking structure comprises a rotating shaft (9), a gear (10), a rack (11), and a handle (12); the rotating shaft (9) is fixedly mounted between the vehicle door (2) and the lock box (3); the gear (10) is rotatably mounted on the outer wall of the rotating shaft (9); the rack (11) is fixedly mounted on the outer wall of the gear (10), and the rack (11) and the gear (10) are meshed; the handle (12) is fixedly mounted on one end of the rotating shaft (9), and the handle (12) is located on the front side of the lock box (3).

5. The railway freight car door locking device according to claim 4, characterized in that: The pushing structure comprises a mounting block (14), an externally threaded barrel (15), a pushing block (16), a movable block (17) and a spring B (18). The mounting block (14) is fixedly mounted on the inner top of the open car (1). A threaded hole is provided on the front side of the mounting block (14). The externally threaded barrel (15) is threadedly mounted in the threaded hole. The pushing block (16) is slidably mounted on the front side of the externally threaded barrel (15). The movable block (17) is fixedly mounted on the rear side of the pushing block (16). The spring B (18) is fixedly mounted on the rear side of the movable block (17). The movable block (17) and the spring B (18) are located on the inner side of the externally threaded barrel (15).

6. The railway freight car door locking device according to claim 5, characterized in that: The front side of the push block (16) contacts the rear side of the vehicle door (2).

7. The railway freight car door locking device according to claim 6, characterized in that: A guide block (13) is slidably mounted on the outer wall of the insertion rod (5), and the guide block (13) is fixedly mounted on the front side of the vehicle door (2).

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