Safety valve with pressure gauge indication

Abstract

The utility model discloses an indicating safety valve with a pressure gauge, which comprises a safety valve body, a safety valve sealing ring is nested and connected on the safety valve body, a safety valve handle cover is arranged on the outer side of the safety valve body, the safety valve handle cover is fixed with a safety valve pressing plate through a bolt, and the safety valve pressing plate is penetrated by the safety valve body. And a movable valve core is arranged in the safety valve body. According to the safety valve with the pressure gauge indication function, the pressure detection mechanism is adopted, when the high-pressure steam cleaning machine works, the steam pressure in the high-pressure steam cleaning machine can be detected, workers can observe the steam pressure conveniently and use the machine more properly according to the steam pressure value conveniently, and the safety valve is matched with steam driving; when steam exists in the high-pressure steam cleaning machine, the safety valve handle cover can automatically rotate to remind workers, so that the situation that the workers are scalded due to mistaken touch is effectively avoided, and use safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a safety valve with a pressure gauge indication. Background Technique

[0002] A safety valve is a special valve in which the closing member is normally closed under the action of an external force. When the medium pressure in a device or pipeline rises above a specified value, it prevents the medium pressure in the pipeline or device from exceeding the specified value by discharging the medium to the outside of the system. It is an important safety component on high-pressure steam cleaners in the current market. However, the existing safety valves for high-pressure steam cleaners cannot measure the pressure, resulting in users being unable to determine the internal pressure of the device. Therefore, in view of the above problems, a safety valve with a pressure gauge indication is now designed to better meet the actual use requirements. Content of the Utility Model

[0003] The purpose of the utility model is to provide a safety valve with a pressure gauge indication to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A safety valve with a pressure gauge indication, including a safety valve body, on which a safety valve sealing ring is nested and connected. An outer side of the safety valve body is provided with a safety valve handle cover, and the safety valve handle cover is fixed to a safety valve pressing plate by bolts. The safety valve pressing plate is penetrated by the safety valve body. An active valve core is arranged inside the safety valve body, and the active valve core is connected to a valve core thimble body. A safety valve core sealing ring is nested and connected to the valve core thimble body. The upper end of the safety valve body is connected to a safety valve core nut by a thread. A safety valve ratchet ring is arranged inside the safety valve handle cover, and a pressure gauge assembly is also connected to the safety valve handle cover.

[0005] Preferably, an exhaust hole is obliquely opened on the safety valve body, and a pressure relief hole is also opened on a threaded interface at a lower side of the safety valve body. Through the above structure, the normal operation of the device can be ensured.

[0006] Preferably, a sliding connection is formed between the safety valve core sealing ring and the active valve core, and the safety valve core sealing ring is of a butterfly structure. Through the sliding action between the safety valve core sealing ring and the active valve core, the normal movement of the valve core thimble body can be ensured.

[0007] Preferably, a sliding connection is formed between the valve core thimble body and the active valve core, and a sealing mechanism is formed between the valve core thimble body and the active valve core through a valve core thimble sealing ring. Through holes are opened on the valve core thimble body, the active valve core, and the safety valve core sealing ring. Through the action of the valve core thimble sealing ring, the sealing performance between the valve core thimble body and the active valve core can be ensured.

[0008] Preferably, the movable valve core is slidably connected to the safety valve handle cover, and an elastic mechanism is formed between the movable valve core and the safety valve spool nut through the safety valve pressure relief spring. Through the elastic action of the safety valve pressure relief spring, it can provide a basic guarantee for the normal movement of the movable valve core.

[0009] Preferably, an elastic mechanism is formed between the safety valve ratchet ring and the safety valve handle cover through the ratchet ring return spring. The safety valve ratchet ring and the safety valve spool nut cooperate to achieve a locking function, and the safety valve ratchet ring is nested with the valve core thimble body. Through the action of the ratchet ring return spring, it can provide a basic acting force for the automatic reset of the safety valve ratchet ring.

[0010] Preferably, the pressure gauge assembly is composed of a pressure gauge housing, a connector, an involute spring, a pointer and a dial. The connector is fixed at the lower end of the pressure gauge housing, and the connector is connected to the safety valve handle cover through a thread. An involute spring is installed inside the pressure gauge housing, and the involute spring is connected to the pointer. The pointer is rotatably connected to the pressure gauge housing. At the same time, the dial is nested on the pressure gauge housing. Through the above structure, the pressure detection function can be realized, so as to facilitate the user to observe the steam pressure inside the equipment.

[0011] Preferably, a sealing mechanism is formed between the connector and the valve core thimble body through the pressure gauge sealing ring, and the connector is slidably connected to the valve core thimble body. Through the above structure, the sealing performance between the connector and the valve core thimble body can be guaranteed.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The safety valve with a pressure gauge indication adopts a pressure detection mechanism, which can detect the steam pressure inside the high-pressure steam cleaner when the high-pressure steam cleaner is working, so as to facilitate the staff to observe, and it is convenient for the staff to use the machine more appropriately according to the steam pressure value. And with the cooperation of steam drive, when there is steam inside the high-pressure steam cleaner, the safety valve handle cover can rotate automatically to remind the staff, thus effectively avoiding the situation of scalding caused by the staff's accidental touch and ensuring the use safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded three-dimensional structure schematic diagram of the overall composition of the device of the present utility model;

[0014] Figure 2 is a front three-dimensional structure schematic diagram of the overall composition of the device of the present utility model;

[0015] Figure 3 is a bottom three-dimensional structure schematic diagram of the overall composition of the device of the present utility model;

[0016] Figure 4This is a front elevation sectional structure schematic diagram of the overall device of the present utility model in a steam state;

[0017] Figure 5 This is a front elevation sectional structure schematic diagram of the overall device of the present utility model in a non-steam state;

[0018] Figure 6 This is a three-dimensional structure schematic diagram of the pressure gauge case and the dial of the present utility model.

[0019] In the figure: 1. Safety valve body; 101. Exhaust hole; 102. Pressure relief hole; 2. Safety valve sealing ring; 3. Safety valve handle cover; 4. Safety valve pressure plate; 5. Safety valve core sealing ring; 6. Valve core thimble sealing ring; 7. Valve core thimble body; 8. Movable valve core; 9. Safety valve pressure relief spring; 10. Safety valve core nut; 11. Safety valve ratchet ring; 12. Ratchet ring return spring; 13. Pressure gauge sealing ring; 14. Pressure gauge assembly; 1401. Pressure gauge case; 1402. Connector; 1403. Involute spring; 1404. Pointer; 1405. Dial. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1-6 , the present utility model provides a technical solution: a pressure gauge indicating safety valve, including a safety valve body 1, a safety valve sealing ring 2 is nested and connected on the safety valve body 1, a safety valve handle cover 3 is arranged outside the safety valve body 1, the safety valve handle cover 3 is fixed to the safety valve pressure plate 4 by bolts, the safety valve pressure plate 4 is penetrated by the safety valve body 1, a movable valve core 8 is arranged in the safety valve body 1, the movable valve core 8 is connected to the valve core thimble body 7, a safety valve core sealing ring 5 is nested and connected on the valve core thimble body 7, the upper end of the safety valve body 1 is connected to the safety valve core nut 10 by thread, a safety valve ratchet ring 11 is arranged in the safety valve handle cover 3, and a pressure gauge assembly 14 is further connected to the safety valve handle cover 3.

[0022] An exhaust hole 101 is obliquely formed on the safety valve body 1, and a pressure relief hole 102 is also formed on the threaded interface at the lower side of the safety valve body 1; a sliding connection is provided between the safety valve core seal ring 5 and the movable valve core 8, and the safety valve core seal ring 5 is of a butterfly structure; a sliding connection is provided between the valve core thimble body 7 and the movable valve core 8, and a sealing mechanism is formed between the valve core thimble body 7 and the movable valve core 8 through the valve core thimble seal ring 6, and through holes are formed in the valve core thimble body 7, the movable valve core 8 and the safety valve core seal ring 5; a sliding connection is provided between the movable valve core 8 and the safety valve handle cover 3, and an elastic mechanism is formed between the movable valve core 8 and the safety valve core nut 10 through the safety valve pressure relief spring 9; an elastic mechanism is formed between the safety valve ratchet ring 11 and the safety valve handle cover 3 through the ratchet ring return spring 12, and the safety valve ratchet ring 11 and the safety valve core nut 10 are cooperated to achieve a locking function, and the safety valve ratchet ring 11 and the valve core thimble body 7 are nestedly connected; the pressure gauge assembly 14 is composed of a pressure gauge housing 1401, a connector 1402, an involute spring 1403, a pointer 1404 and a dial 1405. The connector 1402 is fixed at the lower end of the pressure gauge housing 1401, and the connector 1402 is connected to the safety valve handle cover 3 through a thread. The involute spring 1403 is installed in the pressure gauge housing 1401, and the involute spring 1403 is connected to the pointer 1404, and the pointer 1404 is rotatably connected to the pressure gauge housing 1401. At the same time, the dial 1405 is nestedly connected to the pressure gauge housing 1401; a sealing mechanism is formed between the connector 1402 and the valve core thimble body 7 through the pressure gauge seal ring 13, and a sliding connection is provided between the connector 1402 and the valve core thimble body 7;

[0023] When using the safety valve with a pressure gauge indication, such as Figure 1 - Such as Figure 6As shown, when steam is generated by internal heating of the machine, the steam is connected to the pressure gauge assembly 14 through the through holes on the safety valve core sealing ring 5, the movable valve core 8 and the valve core thimble body 7. The steam drives the involute spring 1403 in the pressure gauge assembly 14 to drive the pointer 1404 to rotate. With the cooperation of the dial 1405, it can be used to indicate the corresponding pressure value inside the machine, which is convenient for users to view. Users can use the machine more appropriately according to the steam pressure value. During the use of the device, when steam is generated by internal heating of the machine, under the steam pressure, the valve core thimble body 7 can be pushed to move. Through the valve core thimble body 7, the safety valve ratchet ring 11 can be driven to move upward until it contacts the safety valve handle cover 3. At this time, the ratchet ring return spring 12 is stressed and contracts, and the safety valve ratchet ring 11 is separated from the safety valve core nut 10, releasing the locking function. With the cooperation of the gas discharged through the exhaust hole 101, the safety valve handle cover 3 can rotate freely, thus reminding the user and effectively avoiding scalding caused by accidental rotation of the safety valve handle cover 3 when there is steam, ensuring the safe use of the device. When the steam in the machine is exhausted, the safety valve ratchet ring 11 is reset under the action of the ratchet ring return spring 12 and cooperates with the safety valve core nut 10 to lock, thus indicating that the steam has been exhausted and the user needs to add water to use. At this time, the user can safely unscrew the safety valve handle cover 3. This is the working principle of the safety valve with pressure gauge indication.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure gauge indicating safety valve, comprising a safety valve body (1), characterized in that: A safety valve sealing ring (2) is nested and connected to the safety valve body (1). A safety valve handle cover (3) is arranged on the outer side of the safety valve body (1). The safety valve handle cover (3) is fixed to a safety valve pressing plate (4) by bolts. The safety valve pressing plate (4) is penetrated by the safety valve body (1). A movable valve core (8) is arranged inside the safety valve body (1). The movable valve core (8) is connected to a valve core thimble body (7). A safety valve core sealing ring (5) is nested and connected to the valve core thimble body (7). The upper end of the safety valve body (1) is connected to a safety valve core nut (10) by threads. A safety valve ratchet ring (11) is arranged inside the safety valve handle cover (3). A pressure gauge assembly (14) is also connected to the safety valve handle cover (3).

2. The pressure gauge indicating safety valve according to claim 1, characterized in that: An exhaust hole (101) is obliquely opened on the safety valve body (1), and a pressure relief hole (102) is also opened on the threaded interface at the lower side of the safety valve body (1).

3. The pressure gauge indicating safety valve according to claim 1, characterized in that: The safety valve core sealing ring (5) is slidably connected to the movable valve core (8), and the safety valve core sealing ring (5) is of a butterfly structure.

4. A pressure gauge indicating safety valve according to claim 1, characterized in that: The valve core thimble body (7) is slidably connected to the movable valve core (8). A sealing mechanism is formed between the valve core thimble body (7) and the movable valve core (8) through a valve core thimble sealing ring (6). Through holes are opened on the valve core thimble body (7), the movable valve core (8), and the safety valve core sealing ring (5).

5. A pressure gauge indicating safety valve according to claim 1, characterized in that: The movable valve core (8) is slidably connected to the safety valve handle cover (3). An elastic mechanism is formed between the movable valve core (8) and the safety valve core nut (10) through a safety valve pressure relief spring (9).

6. The pressure gauge indicating safety valve according to claim 1, wherein: An elastic mechanism is formed between the safety valve ratchet ring (11) and the safety valve handle cover (3) through a ratchet ring return spring (12). The safety valve ratchet ring (11) cooperates with the safety valve core nut (10) to achieve a locking function. The safety valve ratchet ring (11) is nested and connected to the valve core thimble body (7).

7. A pressure gauge indicating safety valve according to claim 1, characterized in that: The pressure gauge assembly (14) is composed of a pressure gauge housing (1401), a connection head (1402), an involute spring (1403), a pointer (1404), and a dial (1405). The connection head (1402) is fixed to the lower end of the pressure gauge housing (1401). The connection head (1402) is connected to the safety valve handle cover (3) by threads. The involute spring (1403) is installed inside the pressure gauge housing (1401). The involute spring (1403) is connected to the pointer (1404). The pointer (1404) is rotatably connected to the pressure gauge housing (1401). The dial (1405) is nested and connected to the pressure gauge housing (1401).

8. The pressure gauge indicating safety valve according to claim 7, characterized in that: A sealing mechanism is formed between the connection head (1402) and the valve core thimble body (7) through a pressure gauge sealing ring (13). The connection head (1402) is slidably connected to the valve core thimble body (7).

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