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CN-122009679-A - Water injection structure for vehicle-mounted water tank

CN122009679ACN 122009679 ACN122009679 ACN 122009679ACN-122009679-A

Abstract

The invention discloses a water injection structure for a vehicle-mounted water tank, which relates to the field of vehicle-mounted water tank water injection and comprises the following components: a water tank body, a water inlet pipe a connector and a unidirectional switch assembly; the invention saves the arrangement space for a special vehicle by arranging the joint in the groove of the water tank body and arranging the one-way switch component in the water tank body, the water injection automatic opening and closing device is particularly suitable for small-sized special vehicles, in addition, water injection through the one-way switch assembly is automatically opened and external water source is automatically closed, so that water in the water tank body can be prevented from flowing backwards, on the other hand, a valve is not required to be manually intervened to open and close by a user, water leakage caused by negligence possibly occurring due to manual operation is avoided, manual operation steps are reduced, and the water injection automatic opening and closing device is more convenient to use.

Inventors

  • SUN QUANSHENG
  • WANG CHUANHUA
  • HE YUQI
  • ZHANG ZHENLONG
  • MA JUN

Assignees

  • 劲旅环境科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260228

Claims (10)

  1. 1. A water injection structure for an on-board water tank, comprising: The water tank comprises a water tank body (100), a water inlet pipe (200), a joint (300) and a one-way switch assembly (400); The water tank is characterized in that a through hole (101) and a groove (102) communicated with the through hole (101) are formed in the side face of the lower portion of the water tank body (100), the water inlet pipe (200) is fixedly connected with the water tank body (100), the water inlet pipe (200) penetrates through the through hole (101) and extends to the inside of the groove (102), a water inlet (201) and a water outlet (202) are respectively formed in two ends of the water inlet pipe (200), the water inlet (201) is located in the groove (102) and is connected with a connector (300), the water outlet (202) is located in a cavity of the water tank body (100) and is connected with a one-way switch assembly (400), the connector (300) is located in the groove (102), and the water outlet (202) is close to the top of the cavity of the water tank body (100).
  2. 2. The water injection structure for an on-vehicle water tank according to claim 1, wherein the water inlet pipe (200) is L-shaped, the water inlet pipe (200) comprises a connecting section (203) sleeved with the through hole (101) and a vertical section (204) communicated with the connecting section (203), the water outlet (202) is located at the top end of the vertical section (204), and the vertical section (204) is parallel to the height direction of the water tank body (100) and extends to the top of a cavity close to the water tank body (100).
  3. 3. The water injection structure for an on-vehicle water tank according to claim 2, wherein the unidirectional switch assembly (400) comprises a cover plate (401) and a fixed block (402) fixedly connected to the end portion of the vertical section (204), the fixed block (402) is hinged to the cover plate (401) through a hinge (403), a return spring (404) is arranged on the hinge (403), and the return spring (404) is used for providing pressure for enabling the cover plate (401) to be attached to the water outlet (202).
  4. 4. A water filling structure for an on-vehicle water tank according to claim 3, wherein an inclined surface (221) is provided in the water outlet (202), a sealing member (405) is provided on a side of the cover plate (401) facing the water outlet (202), the sealing member (405) is in a spherical cap shape, and when the cover plate (401) is attached to the water outlet (202), the inclined surface (221) is attached to a side surface of the sealing member (405).
  5. 5. The water injection structure for an on-vehicle water tank according to claim 4, wherein a through slot (411) is formed on the side edge of the cover plate (401), and a limiting piece (406) is arranged on the outer side of the vertical section (204); The limiting part (406) comprises a connecting block (461) fixedly connected to the outer side of the vertical section (204), an arc-shaped rod (462) connected to the connecting block (461), the arc-shaped rod (462) penetrates through the through groove (411), one end of the connecting block (461) is fixedly connected with a protruding block (463), and the protruding block (463) is located on one side, far away from the water outlet (202), of the cover plate (401) to limit the movable stroke of the cover plate (401).
  6. 6. The water injection structure for an on-vehicle water tank according to claim 5, wherein an auxiliary spring (464) is sleeved on the arc-shaped rod (462), two ends of the auxiliary spring (464) are respectively connected with the cover plate (401) and the connecting block (461), and the auxiliary spring (464) has a tendency to enable the cover plate (401) to be attached to the end face of the water outlet (202).
  7. 7. The water injection structure for the vehicle-mounted water tank according to claim 6, wherein a plurality of through slots (411) are formed in the upper side edge of the cover plate (401), a plurality of limiting pieces (406) which are matched with the positions of the through slots (411) are arranged on the outer side of the vertical section (204), and auxiliary springs (464) are arranged on the limiting pieces (406).
  8. 8. The water filling structure for an on-vehicle water tank according to claim 4, wherein the water outlet (202) is provided with a ring groove (222), and a sealing ring (223) is nested in the ring groove (222).
  9. 9. The water filling structure for an on-vehicle water tank according to claim 1, wherein the water inlet pipe (200) is made of aluminum alloy or stainless steel.
  10. 10. The water injection structure for an on-vehicle water tank according to claim 1, wherein two symmetrically distributed lock bolts (301) are arranged on the connector (300), and the lock bolts (301) are matched with grooves (102) of a fire hydrant water pipe.

Description

Water injection structure for vehicle-mounted water tank Technical Field The invention relates to the technical field of water injection of vehicle-mounted water tanks, in particular to a water injection structure for a vehicle-mounted water tank. Background In special vehicles such as sprinkler trucks and fire trucks, water is usually supplied to the vehicle tank by an external water source, for example, by connecting a special water pipe through a hydrant. The current practice is to provide a water inlet at the bottom of the water tank and connect the standard quick connector, the ball valve and the pipeline in turn, when water is replenished, the ball valve is opened first, then the quick connector is in butt joint with an external water source, and after the water replenishing is finished, the ball valve is closed first, and then the quick connector is disconnected. The whole operation relies on manual start-stop ball valve, and the step is loaded down with trivial details, easily appears forgetting to close the valve and tear open the condition of joint promptly, leads to water tank internal water to leak in a large number, both extravagant water resource and pollution operation environment. In addition, for compact small-sized special vehicles, the quick connector and the ball valve are large in size, and excessive arrangement space is required to be occupied during the whole vehicle design. Disclosure of Invention In order to overcome the technical problems, the invention aims to provide a water injection structure for an on-vehicle water tank. The aim of the invention can be achieved by the following technical scheme: a water injection structure for an on-vehicle water tank, comprising: a water tank body, a water inlet pipe a connector and a unidirectional switch assembly; The utility model discloses a water tank, including water tank body, inlet tube, water inlet, connector, water inlet, water outlet, through-hole and the recess of through-hole intercommunication have been seted up to water tank body lower part side, inlet tube and water tank body fixed connection, the inlet tube runs through the through-hole extends to in the recess, the both ends of inlet tube are water inlet and delivery port respectively, the water inlet is located the recess and links to each other with the connector, the delivery port is located in the cavity of water tank body and links to each other with the one-way switch subassembly, the connector is located in the recess, the delivery port is close to the cavity top of water tank body. As a further scheme of the invention, the water inlet pipe is L-shaped, the water inlet pipe comprises a connecting section sleeved with the through hole and a vertical section communicated with the connecting section, the water outlet is positioned at the top end of the vertical section, and the vertical section is parallel to the height direction of the water tank body and extends to the top of a cavity close to the water tank body. As a further scheme of the invention, the unidirectional switch assembly comprises a cover plate and a fixed block fixedly connected to the end part of the vertical section, wherein the fixed block is hinged with the cover plate through a hinge, and a return spring is arranged on the hinge and used for providing pressure for attaching the cover plate to the water outlet. As a further scheme of the invention, an inclined plane is arranged in the water outlet, a sealing element is arranged on one side of the cover plate facing the water outlet, the sealing element is in a spherical crown shape, and when the cover plate is attached to the water outlet, the inclined plane is attached to the side face of the sealing element. As a further scheme of the invention, a through groove is formed on the side edge of the cover plate, and a limiting piece is arranged on the outer side of the vertical section; The limiting piece comprises a connecting block fixedly connected to the outer side of the vertical section and an arc-shaped rod connected to the connecting block, the arc-shaped rod penetrates through the through groove, one end of the connecting block is fixedly connected with a protruding block, and the protruding block is located on one side, far away from the water outlet, of the cover plate so as to limit the movable stroke of the cover plate. As a further scheme of the invention, the arc-shaped rod is sleeved with the auxiliary spring, two ends of the auxiliary spring are respectively connected with the cover plate and the connecting block, and the auxiliary spring has the trend of enabling the cover plate to be attached to the end face of the water outlet. As a further scheme of the invention, a plurality of through grooves are formed in the upper side edge of the cover plate, a plurality of limiting pieces matched with the positions of the through grooves are arranged on the outer side of the vertical section, and auxiliary springs are arranged on the limitin