A double-bolt, mechanical spring-driven coiling mechanism for train water-adding equipment

Abstract

The present invention discloses a pipe winding mechanism for a train water-adding equipment driven by a double bolt and a mechanical coil spring, comprising a pipe joint and two sets of water-adding modules, each set of water-adding modules comprising a reel assembly and a mechanical coil spring assembly; the reel assembly comprises two discs and a reel shaft, the two discs are of the same size and both rotate synchronously with the reel shaft; a water-adding pipe of the train water-adding equipment is wound between the two discs; the mechanical coil spring assembly is connected to the reel shaft; the pipe joint is located between the two reel assemblies; the pipe joint has two water inlets and a water outlet; and the pipe joint comprises a pipe body and two core shaft tubes; the middle part of the pipe body divides the inner cavity of the pipe body into two parts by a partition, and the two water inlets are respectively located at the two ends of the pipe body; one end of the two core shaft tubes can be rotatably inserted into the pipe body; the two water inlets can be connected to an external water supply device; the reel shafts of the two sets of water-adding modules are both hollow structures, and both reel shafts are provided with a pipe connection port.

Description

Technical Field

[0001] The invention relates to the technical field of train water supply components, in particular to a double-bolt, mechanically coiled spring-driven pipe winding mechanism for train water supply equipment. Background Art

[0002] Currently, domestic train water supply stations typically have over 20 water supply wells or main pipeline branches between tracks, each equipped with a hydrant (or hydrant group). To accommodate the relative parking positions of passing trains, the hydrants are connected directly (or indirectly through a water supply device) to the nearest water tank filling port on the train. Currently, adding water to carriages after a train arrives at a station or stops is a manual operation. A water supply worker manually inserts the external water supply connector into the train's built-in water supply port, then opens the water supply valve to start water supply. Once the train's water tank overflows, the worker manually closes the water supply valve and removes the water supply pipe.

[0003] However, during peak train operation periods, a train is usually only staffed with around four water supply workers. On average, one water supply worker is responsible for supplying water to multiple carriages or multiple trains. When the train stops at a station, time is short, and the staff have to manually pull out the water pipe and connect it to the train's own water supply interface. After supplying water, the water pipe must be manually retracted. Therefore, there is often not enough time to supply water to the next train.

[0004] In the prior art, there is also a solution that uses an electric-driven hose reel mechanism to automatically extend and retract the water pipe. Although this type of equipment can reduce the workload of the staff, the cost is relatively high, and the overall size of the water-adding equipment is relatively large, requiring an additional electric drive structure. The distance between the two rows of rails is limited. If a water-adding equipment with a large width (perpendicular to the rail direction) is configured, it will affect the staff's work channel and reduce work efficiency. It is also difficult to configure such equipment for stations with small line spacing. In addition, the existing water-adding equipment is usually a single-bolt structure, that is, it can only accommodate one water-adding pipe inside, and each water-adding pipe must be equipped with a separate water-adding equipment, resulting in a larger space being occupied overall. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the technical solution adopted by the present invention is:

[0006] A double-bolt, mechanical coil spring-driven pipe reel mechanism for train water supply equipment includes a pipe joint and two sets of water supply modules, each of which includes a reel assembly and a mechanical coil spring assembly;

[0007] For any set of water adding modules:

[0008] The reel assembly includes two discs and a reel shaft, the two discs are of the same size and both rotate synchronously with the reel shaft;

[0009] A water supply pipe for a train water supply device is arranged between the two discs;

[0010] The mechanical coil spring assembly is connected to the reel shaft and is used to accumulate elastic force when the user pulls the water filling pipe out from the pipe outlet and drives the reel assembly to rotate, and releases the elastic force to automatically retract the water filling pipe after the user completes the water filling operation;

[0011] The pipe joint is located between the two reel assemblies, and each mechanical coil spring assembly is located outside the corresponding reel assembly;

[0012] The pipe joint is provided with two water inlets and a water outlet;

[0013] Furthermore, the pipe joint comprises a pipe body and two core shaft pipes;

[0014] The middle part of the tube body is divided into two parts by a partition plate, and the two water inlets are respectively located at the two ends of the tube body;

[0015] One end of the two core shaft tubes can be rotatably inserted into the tube body, the two core shaft tubes face opposite directions and are perpendicular to the tube body, and the two water outlets are respectively located at one end of the two core shaft tubes away from the tube body;

[0016] The two core shaft tubes are provided with a plurality of through holes in the tube body, so that one water inlet is connected to one water outlet, and the other water inlet is connected to the other water outlet;

[0017] Moreover, both water inlets can be connected to external water supply equipment;

[0018] The reel shafts of the two water adding modules are both hollow structures, and both reel shafts are provided with connecting ports, so that the inner ends of the water adding pipes can be connected to the inner cavities of the corresponding reel shafts;

[0019] One of the core shaft tubes is connected to the inner cavity of one reel shaft and rotates synchronously, and the other core shaft tube is connected to the inner cavity of the other reel shaft and rotates synchronously.

[0020] In some embodiments, for any set of water adding modules:

[0021] The mechanical coil spring assembly includes a mounting housing, a coil spring, a ratchet, a pawl and a tension spring;

[0022] The coil spring is located in the mounting shell, the reel shaft passes through the mounting shell and is fixedly connected to the inner end of the coil spring, and the outer end of the coil spring is fixed in the mounting shell;

[0023] The ratchet, pawl and tension spring are all mounted on one side outside the mounting housing, and the ratchet rotates synchronously with the reel shaft;

[0024] The middle portion of the pawl is rotatably mounted outside the mounting housing via a rotating shaft thereof, the tension spring is connected to the outside of the mounting housing, and the other end of the tension spring is connected to one end of the pawl;

[0025] The tension spring is used to drive the pawl to automatically reset when the pawl is not in contact with the ratchet, and after reset, the end of the pawl away from the tension spring is directed toward the center of the ratchet;

[0026] The outer periphery of the ratchet is formed with a plurality of tooth groove areas and a plurality of reset areas, the outer sides of the tooth groove areas are formed with tooth grooves, and the outer sides of the reset areas do not have tooth grooves;

[0027] The radius of the ratchet in the tooth groove area is greater than the radius in the reset area, so that the pawl can engage with the tooth groove in the tooth groove area and the pawl cannot contact the outside of the reset area of ​​the ratchet.

[0028] In some embodiments, the first bracket, the second bracket and the third bracket are further included, and the pipe winding mechanism is integrally mounted in the housing of the train water supply device;

[0029] The bottom ends of the first bracket, the second bracket and the third bracket are all fixedly connected to the inner wall of the bottom of the shell;

[0030] The top ends of the first bracket and the second bracket are fixedly connected to the mounting shells of the two water adding modules respectively;

[0031] The top end of the third bracket is fixedly connected to the bottom outer wall of the pipe joint.

[0032] In some embodiments, the discs are hollow structures, and each disc is connected to the reel shaft via a plurality of inner skeletons.

[0033] In some embodiments, for any set of water adding modules, an air supply channel is formed inside the water adding pipe, the reel shaft and the connecting port, and an air supply interface is opened at the middle of the outer end of each reel shaft and communicates with the air supply channel;

[0034] Both air supply interfaces can be connected to external air supply equipment, so that the external air supply can be delivered to the outer end joint of the water supply pipe through the air supply channel, so that the outer end joint of the water supply pipe can be pneumatically locked.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The double-bolt, mechanical spring-driven winding pipe mechanism for train water-adding equipment provided by the present invention includes two sets of water-adding modules. Workers can take out the two sets of water-adding pipes for adding water at the same time or at different times as needed, thereby reducing the number of water-adding equipment on the platform; and a mechanical spring assembly is used to realize the automatic return of the water-adding pipe, which makes the operation of the workers more convenient, labor-saving, and low-cost; the two sets of water-adding modules are connected into a whole through a bracket and a pipe joint, and the overall structure is very compact. While ensuring the double-bolt structure, the overall width of the train water-adding equipment can be effectively reduced, thereby providing workers with a larger activity space, and can be configured at train stations with smaller spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is an external schematic diagram of the double-bolt, mechanical coil spring-driven winding pipe mechanism for train water supply equipment provided by the present invention;

[0038] Figure 2 Schematic diagram of the pipe joint;

[0039] Figure 3 This is a schematic external diagram from another perspective of the double-bolt, mechanical coil spring-driven coiling mechanism for train water supply equipment provided by the present invention;

[0040] Figure 4 is an enlarged schematic diagram of a mechanical coil spring assembly;

[0041] Figure 5 Schematic diagram of the air supply channel;

[0042] Figure 6 This is a schematic diagram of the appearance of the double-bolt, mechanical coil spring driven train water filling equipment winding pipe mechanism provided by the present invention when it is arranged inside the shell.

[0043] Explanation of the accompanying drawings: 1. Shell; 2. Reel assembly; 3. Mechanical coil spring assembly; 4. Water inlet valve; 5. First bracket; 6. Second bracket; 7. Third bracket; 8. Pipe joint; 9. Protective cover; 10. Air supply channel; 11. Air supply interface; 21. Disc; 22. Reel shaft; 23. Skeleton; 24. Pipe connection port; 31. Mounting shell; 32. Tension spring; 33. Ratchet; 34. Pawl; 35. Reset area; 36. Tooth groove area; 81. Water inlet; 82. Water outlet; 83. Tube body; 84. Core shaft tube; 85. Through hole; 86. Partition. DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the following further describes how the present invention is implemented in conjunction with the accompanying drawings and specific implementation methods.

[0045] Reference Figure 1-Figure 3As shown, the present invention provides a double-bolt, mechanical coil spring-driven pipe winding mechanism for train water-adding equipment, including a pipe joint 8 and two sets of water-adding modules, each set of water-adding modules including a reel assembly 2 and a mechanical coil spring assembly 3.

[0046] Moreover, for any set of water adding modules: the reel assembly 2 includes two discs 21 and a reel shaft 22, the two discs 21 are of the same size and rotate synchronously with the reel shaft 22; the water adding pipe of the train water adding equipment is wound between the two discs 21; the mechanical coil spring assembly 3 is connected to the reel shaft 22, and is used to accumulate elastic force when the user pulls out the water adding pipe from the pipe outlet and drives the reel assembly 2 to rotate, and automatically retracts the water adding pipe by releasing the elastic force after the user completes the water adding operation.

[0047] The pipe joint 8 is located between the two reel assemblies 2, and each mechanical coil spring assembly 3 is located outside the corresponding reel assembly 2; the pipe joint 8 is provided with two water inlets 81 and water outlets 82; and the pipe joint 8 includes a pipe body 83 and two core shaft tubes 84; the middle part of the pipe body 83 is divided into two parts by a partition 86, and the two water inlets 81 are respectively located at the two ends of the pipe body 83; one end of the two core shaft tubes 84 can be rotatably inserted into the pipe body 83, the two core shaft tubes 84 face oppositely and are perpendicular to the pipe body 83, and the two water outlets 82 are respectively located at the ends of the two core shaft tubes 84 away from the pipe body 83; the two core shaft tubes 8 Multiple through holes 85 are formed in the inner portion of the tube body 83, so that one water inlet 81 is connected to one water outlet 82, and the other water inlet 81 is connected to the other water outlet 82; moreover, both water inlets 81 can be connected to an external water supply device; the reel shafts 22 of the two water adding modules are both hollow structures, and both reel shafts 22 are provided with a pipe connection port 24, so that the inner end of the water adding pipe can be connected to the inner cavity of the corresponding reel shaft 22; one core shaft tube 84 is connected to the inner cavity of one reel shaft 22 and rotates synchronously, and the other core shaft tube 84 is connected to the inner cavity of the other reel shaft 22 and rotates synchronously.

[0048] In a specific embodiment, a sealing ring or other structure may be provided between the tube body 83 and the core shaft tube 84 to prevent water leakage at the joint.

[0049] Further, for any set of water adding modules: refer to Figure 4As shown, the mechanical coil spring assembly 3 includes a mounting shell 31, a coil spring, a ratchet 33, a pawl 34 and a tension spring 32; the coil spring is located in the mounting shell 31, the reel shaft 22 passes through the mounting shell 31 and is fixedly connected to the inner end of the coil spring, and the outer end of the coil spring is fixed in the mounting shell 31; the ratchet 33, the pawl 34 and the tension spring 32 are all mounted on one side outside the mounting shell 31, and the ratchet 33 rotates synchronously with the reel shaft 22; the middle part of the pawl 34 is rotatably mounted outside the mounting shell 31 through its rotating shaft, the tension spring 32 is connected to the outside of the mounting shell 31, and the other end of the tension spring 32 is fixed to the pawl 34 One end is connected; the tension spring 32 is used to drive the pawl 34 to automatically reset when the pawl 34 is not in contact with the ratchet 33, and after resetting, the pawl 34 is away from the end of the tension spring 32 toward the center of the ratchet 33; the outer periphery of the ratchet 33 is formed with a plurality of tooth groove areas 36 and a plurality of reset areas 35, and the outer side of the tooth groove area 36 is formed with a tooth groove, and the outer side of the reset area 35 does not have a tooth groove; the radius of the ratchet 33 in the tooth groove area 36 is larger than the radius in the reset area 35, so that the pawl 34 can engage with the tooth groove of the tooth groove area 36, ​​and the pawl 34 cannot contact the outer side of the reset area 35 of the ratchet 33.

[0050] It is understandable that in Figure 4 The pawl 34 is pulled out of the water supply pipe 32 and the pawl 34 is pulled out of the water supply pipe 33. When the pawl 34 is pulled out of the water supply pipe 33, the pawl 34 is pulled out of the water supply pipe 33. When the pawl 34 is pulled out of the water supply pipe 33, the pawl 34 is pulled out of the water supply pipe 33. When the pawl 34 is pulled out of the water supply pipe 33, the pawl 34 is pulled out of the water supply pipe 33. When the pawl 34 is pulled out of the water supply pipe 33, the pawl 34 is pulled out of the water supply pipe 33. Figure 4 The left side of the water pipe becomes the right side of the water pipe), which cannot engage with the tooth groove area 36, ​​so it will not affect the clockwise movement of the ratchet 33, so that the water pipe can be automatically retracted.

[0051] Through such a structure, the mechanical coil spring assembly 3 is used to realize the automatic return of the water filling pipe, making it more convenient and labor-saving for the staff to operate; and the water filling pipe is automatically locked after being extended, and can be automatically retracted after being unlocked, which further facilitates the staff.

[0052] Preferably, the double-bolt, mechanical spring-driven tube winding mechanism for the train water-adding equipment also includes a first bracket 5, a second bracket 6 and a third bracket 7, and the tube winding mechanism is installed as a whole in the outer shell 1 of the train water-adding equipment; the bottom ends of the first bracket 5, the second bracket 6 and the third bracket 7 are fixedly connected to the inner wall of the bottom of the outer shell 1; the top ends of the first bracket 5 and the second bracket 6 are respectively fixedly connected to the mounting shells 31 of the two sets of water-adding modules; the top end of the third bracket 7 is fixedly connected to the bottom outer wall of the pipe joint 8.

[0053] Preferably, the discs 21 are all hollow structures, and each disc 21 is connected to the reel shaft 22 through a plurality of inner skeletons 23, thereby reducing the overall weight of the equipment and making it easier for the staff to operate.

[0054] In addition, refer to Figure 5 As shown, in a specific embodiment, the double-bolt, mechanically coiled spring-driven winding pipe mechanism for train water-adding equipment can be installed in the housing 1 of the train water-adding equipment. The housing 1 is in the shape of a rectangular parallelepiped, and a pipe outlet is provided on the upper side of each of the left and right sides of the housing 1. When the water-adding pipes of the two water-adding modules are completely accommodated inside the housing 1, the outer ends of the water-adding pipes of the two water-adding mechanisms are respectively located at the two pipe outlets, and each pipe outlet is provided with an openable and closable protective cover 5, so that the staff can remove the corresponding water-adding pipes from the pipe outlets on both sides simultaneously or at different times to add water as needed. There are also two water inlets at the bottom of the housing 1, each of which is provided with a water inlet valve 4. The external water supply pipe can pass through the water inlet and be connected to the water inlet end of the water inlet valve 4. The two water inlets 81 of the pipe joint 8 can be connected to the water outlet ends of the two water inlet valves 4 through the pipeline inside the housing 1, thereby realizing water supply for the two water-adding modules.

[0055] Preferably, refer to Figure 6 As shown, for any set of water adding modules, an air supply channel 10 is formed inside the water adding pipe, the reel shaft 22 and the connecting pipe port 24, and an air supply interface 11 connected to the air supply channel 10 is opened in the middle of the outer end of each reel shaft 22; the two air supply interfaces 11 can be connected to the external air supply equipment, so that the external air supply can be delivered to the outer end joint of the water adding pipe through the air supply channel 10, so as to realize pneumatic locking of the outer end joint of the water adding pipe.

[0056] In a specific embodiment, two air inlets are provided beside the water inlet at the bottom of the shell 1 of the train water supply equipment. Two air valves can be provided in the shell 1, and the external air supply equipment can be connected to the air inlet end of the corresponding air valve through the air inlet. An existing rotary joint can be provided at the air supply interface 10, so that its inner end rotates synchronously with the reel shaft 22, and the outer end is connected to the air outlet end of the corresponding air valve through the air path inside the shell 1, thereby realizing air supply. It can be understood that the present invention provides Figure 2 and Figure 5The image is only for showing the internal principle of the tube structure and does not represent the actual size or proportion.

[0057] Overall, for any water supply module, the two discs 21 of the reel assembly 2, the coil spring and ratchet 33 of the mechanical coil spring assembly 3, and the corresponding core shaft tube 84 all rotate coaxially around the same reel shaft 22. The two water supply modules are connected as a single unit via a bracket and a pipe joint 8. An air supply channel 10 is also integrated within the reel shaft 22. This compact design, while maintaining a dual-bolt structure, effectively reduces the overall width of the train water supply system, providing greater mobility for staff and enabling deployment in smaller train stations.

[0058] In summary, the double-bolt, mechanical spring-driven train water-adding equipment winding mechanism provided by the present invention includes two sets of water-adding modules. Workers can take out the two sets of water-adding pipes for adding water at the same time or at different times as needed, thereby reducing the number of platform water-adding equipment; and, a mechanical spring assembly is used to realize the automatic return of the water-adding pipe, making it more convenient, labor-saving, and cost-effective for workers to operate; the two sets of water-adding modules are connected into a whole through a bracket and a pipe joint, and the overall structure is very compact. While ensuring the double-bolt structure, the overall width of the train water-adding equipment can be effectively reduced, thereby providing workers with a larger activity space, and can be configured at train stations with smaller spaces.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be covered by the scope of the claims of the present invention.

Claims

1. A double-bolt, mechanical spring-driven coiling mechanism for a train water supply device, characterized in that: It comprises a pipe joint (8) and two sets of water adding modules, each set of water adding modules comprises a reel assembly (2) and a mechanical coil spring assembly (3); For any set of water adding modules: The reel assembly (2) comprises two discs (21) and a reel shaft (23); the two discs (21) are of the same size and rotate synchronously with the reel shaft (23); A water supply pipe for a train water supply device is arranged between the two discs (21); The mechanical coil spring assembly (3) is connected to the reel shaft (23) and is used to accumulate elastic force when the user pulls the water filling pipe out from the pipe outlet and drives the reel assembly (2) to rotate, and to automatically retract the water filling pipe by releasing the elastic force after the user completes the water filling operation; The pipe joint (8) is located between the two reel assemblies (2), and each mechanical coil spring assembly (3) is located outside the corresponding reel assembly (2); The pipe joint (8) is provided with two water inlets (81) and a water outlet (82); Furthermore, the pipe joint (8) comprises a pipe body (83) and two core shaft pipes (84); The middle of the tube body (83) is divided into two parts by a partition (86), and the two water inlets (81) are respectively located at the two ends of the tube body (83); One end of each of the two core shaft tubes (84) is rotatably inserted into the tube body (83), the two core shaft tubes (84) face opposite directions and are perpendicular to the tube body (83), and the two water outlets (82) are respectively located at one end of the two core shaft tubes (84) away from the tube body (83); The two core shaft tubes (84) are each provided with a plurality of through holes (85) in the tube body (83), so that one water inlet (81) is connected to one water outlet (82), and the other water inlet (81) is connected to the other water outlet (82); Furthermore, both water inlets (81) can be connected to external water supply equipment; The reel shafts (23) of the two water adding modules are both hollow structures, and both reel shafts (23) are provided with a pipe connection port (24) so ​​that the inner end of the water adding pipe can communicate with the inner cavity of the corresponding reel shaft (23); One of the core shaft tubes (84) is connected to the inner cavity of one reel shaft (23) and rotates synchronously, and the other core shaft tube (84) is connected to the inner cavity of the other reel shaft (23) and rotates synchronously; For any set of water adding modules, an air supply channel (10) is formed inside the water adding pipe, the reel shaft (23) and the connecting port (24), and an air supply interface (11) communicating with the air supply channel (10) is provided at the middle of the outer end of each reel shaft (23); Both air supply interfaces (11) can be connected to external air supply equipment, so that the external air supply can be delivered to the outer end joint of the water supply pipe through the air supply channel (10) to achieve pneumatic locking of the outer end joint of the water supply pipe.

2. The double-bolt, mechanical spring-driven coiling mechanism for train water supply equipment according to claim 1, characterized in that: For any set of water adding modules: The mechanical coil spring assembly (3) comprises a mounting housing (31), a coil spring, a ratchet (33), a pawl (34) and a tension spring (32); The coil spring is located in the mounting shell (31), the reel shaft (23) passes through the mounting shell (31) and is fixedly connected to the inner end of the coil spring, and the outer end of the coil spring is fixed in the mounting shell (31); The ratchet (33), the pawl (34) and the tension spring (32) are all mounted on one side outside the mounting shell (31), and the ratchet (33) rotates synchronously with the reel shaft (23); The middle portion of the pawl (34) is rotatably mounted outside the mounting shell (31) via its rotating shaft, one end of the tension spring (32) is connected to the outside of the mounting shell (31), and the other end of the tension spring (32) is connected to one end of the pawl (34); The tension spring (32) is used to drive the pawl (34) to automatically reset when the pawl (34) is not in contact with the ratchet (33), and after the reset, the end of the pawl (34) away from the tension spring (32) is directed toward the center of the ratchet (33); The outer periphery of the ratchet wheel (33) is formed with a plurality of tooth groove areas (36) and a plurality of reset areas (35), the outer sides of the tooth groove areas (36) are formed with tooth grooves, and the outer sides of the reset areas (35) do not have tooth grooves; The radius of the ratchet (33) in the tooth groove area (36) is greater than the radius in the reset area (35), so that the pawl (34) can engage with the tooth groove of the tooth groove area (36) and the pawl (34) cannot contact the outside of the reset area (35) of the ratchet (33).

3. The double-bolt, mechanical spring-driven coiling mechanism for train water supply equipment according to claim 2, characterized in that: It also includes a first bracket (5), a second bracket (6) and a third bracket (7), and the pipe winding mechanism is entirely installed in the housing (1) of the train water supply equipment; The bottom ends of the first bracket (5), the second bracket (6) and the third bracket (7) are all fixedly connected to the inner wall of the bottom of the housing (1); The top ends of the first bracket (5) and the second bracket (6) are respectively fixedly connected to the mounting shells (31) of the two water adding modules; The top end of the third bracket (7) is fixedly connected to the bottom outer wall of the pipe joint (8).

4. The double-bolt, mechanical spring-driven coiling mechanism for train water supply equipment according to claim 1, characterized in that: The discs (21) are all hollow structures, and each disc (21) is connected to the reel shaft (23) via a plurality of inner skeletons (22).

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