A pressure measuring joint that is easy to open

Abstract

The utility model relates to the technical field of air pressure testing devices, and discloses a pressure measuring joint that is easy to open, comprising a valve shell, a screw plug is movably connected at the bottom of the interior of the valve shell, a valve core is fixedly connected to the top of the screw plug, connecting columns are fixedly connected on both sides of the valve core, a connecting plate is fixedly connected to the outside of the valve shell, and bolts are movably connected inside the connecting plate. The utility model is conducive to pushing the valve core by providing bolts, connecting plates and connecting columns. When the air pressure is high and the air pressure exerts a large thrust on the valve core, so that the valve core is tightly pressed on the valve shell, the valve core can be moved inside the connecting plate by continuously twisting the bolts, so that the top of the valve core can be pressed against the top groove of the top block, and as the valve core continues to move, the connecting column is driven to move downward, so that the valve core moves downward, so that the pressure measuring joint can be opened, and then the hose can be installed on the valve shell.

Description

Technical Field

[0001] The utility model relates to the technical field of air pressure testing devices, and more specifically to a pressure testing joint which is easy to open. Background Art

[0002] The pressure measuring joint is used to test the pressure in the air pressure system. Its working principle is to use the thrust generated by the spring force and air pressure to make the valve core and the valve body fit tightly to achieve sealing. When the system pressure needs to be measured, the pressure measuring joint is connected to the pressure gauge through the pressure measuring hose, and the push rod in the pressure measuring hose is used to push the valve core of the pressure measuring joint to connect the air pressure system with the pressure gauge. The pressure gauge indicates the pressure in the system. However, when the air pressure is high, the air pressure will have a greater thrust on the valve core, causing it to be tightly pressed on the valve housing. It is difficult to push the valve core simply by the push rod on the side pressure hose, resulting in the pressure measuring joint being unable to be opened, which is not conducive to the side pressure work. For this purpose, a pressure measuring joint that is easy to open is provided. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pressure measuring joint that is easy to open, so as to solve the problems existing in the above-mentioned background technology.

[0004] The utility model provides the following technical solution: a pressure measuring joint that is easy to open, comprising a valve housing, a screw plug movably connected to the lower part of the interior of the valve housing, a valve core fixedly connected to the top of the screw plug, connecting columns fixedly connected to both sides of the valve core, a connecting plate fixedly connected to the outer side of the valve housing, a bolt movably connected to the interior of the connecting plate, the bolt comprising a screw block, a screw column fixedly connected to the bottom of the screw block, and a tightening thread provided on the outer side of the screw column.

[0005] Preferably, the valve housing comprises an upper shell, an upper thread is provided on the outer side of the upper shell, a hexagonal block is fixedly connected to the bottom of the upper shell, a middle shell is fixedly connected to the bottom of the hexagonal block, movable grooves are provided on both sides of the middle shell, a lower shell is fixedly connected to the bottom of the movable groove, a sealing gasket is fixedly connected to the outer side of the lower shell, a lower thread is provided on the outer side of the lower shell, and cavities are provided inside the upper shell, the hexagonal block, the middle shell and the lower shell.

[0006] Preferably, the connecting plate comprises a plate body, and a screw groove is provided inside the plate body.

[0007] Preferably, the screw plug comprises a blocking block, a sealing ring is fixedly connected to the inside of the blocking block, and a spring is fixedly connected to the top of the blocking block.

[0008] Preferably, the valve core includes a core body, a sealing sleeve is fixedly connected to the outer side of the core body, a through groove is provided above the inner part of the core body, a top pad is fixedly connected to the top of the core body, the inside of the top pad and the top of the core body are both provided with through holes, a connecting rod is fixedly connected to the middle of the top of the core body, a lower tube is fixedly connected to the bottom of the core body, and an inner cavity is provided inside the core body and the lower tube.

[0009] Preferably, the connecting column comprises a column body, one end of the column body is fixedly connected to a top block, and a top groove is provided on the top of the top block.

[0010] Technical effects and advantages of the utility model:

[0011] The utility model is conducive to pushing the valve core by providing bolts, connecting plates and connecting columns. When the air pressure is high and the air pressure has a greater thrust on the valve core, so that it is tightly pressed on the valve housing, the tightening thread is matched with the screw groove, so that the bolt can be screwed into the connecting plate, and it can be moved inside the connecting plate by continuous twisting, so that the top of the bolt can be pressed against the top groove of the top block, and as it moves continuously, it drives the connecting column to move downward, so that the valve core moves downward, so that the pressure measuring joint can be opened, and then the hose can be installed on the valve housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the valve housing, connecting plate and screw plug of the utility model.

[0015] Figure 4 It is a schematic diagram of the overall structure of the bolt of the utility model.

[0016] Figure 5 It is a schematic diagram of the cross-sectional structure of the valve core and the connecting column of the utility model.

[0017] The accompanying drawings are marked as follows: 1. valve housing; 101. upper housing; 102. upper thread; 103. hexagonal block; 104. movable groove; 105. middle housing; 106. sealing gasket; 107. lower thread; 108. lower housing; 109. cavity; 2. bolt; 201. screw block; 202. screw column; 203. tightening thread; 3. connecting plate; 301. plate body; 302. screw groove; 4. screw plug; 401. plug; 402. sealing ring; 403. spring; 5. valve core; 501. core body; 502. sealing sleeve; 503. through groove; 504. through hole; 505. top gasket; 506. connecting rod; 507. lower cylinder; 508. inner cavity; 6. connecting column; 601. column body; 602. top block; 603. top groove. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the easy-to-open pressure measuring joint involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0019] The utility model provides a pressure measuring joint that is easy to open, comprising a valve housing 1, a screw plug 4 is movably connected to the lower part of the interior of the valve housing 1, a valve core 5 is fixedly connected to the top of the screw plug 4, connecting columns 6 are fixedly connected to both sides of the valve core 5, a connecting plate 3 is fixedly connected to the outer side of the valve housing 1, a bolt 2 is movably connected to the interior of the connecting plate 3, the bolt 2 comprises a screw block 201, a screw column 202 is fixedly connected to the bottom of the screw block 201, a tightening thread 203 is arranged on the outer side of the screw column 202, the screw block 201 is used to screw the bolt 2, the tightening thread 203 is matched with the screw groove 302, so that the bolt 2 can enter the connecting plate 3, and can move up and down inside the connecting plate 3 by screwing in different directions.

[0020] Furthermore, the valve housing 1 includes an upper shell 101, an upper thread 102 is provided on the outer side of the upper shell 101, a hexagonal block 103 is fixedly connected to the bottom of the upper shell 101, a middle shell 105 is fixedly connected to the bottom of the hexagonal block 103, movable grooves 104 are provided on both sides of the middle shell 105, a lower shell 108 is fixedly connected to the bottom of the movable groove 104, a sealing gasket 106 is fixedly connected to the outer side of the lower shell 108, a lower thread 107 is provided on the outer side of the lower shell 108, and a cavity 109 is provided inside the upper shell 101, the hexagonal block 103, the middle shell 105 and the lower shell 108, the upper thread 102 is used for connecting it to the pressure measuring hose, the hexagonal block 103 is used to tighten it with a wrench during installation, the movable groove 104 is used for moving the connecting column 6, the lower thread 107 is used for connecting it to the air pressure system container, and the cavity 109 is used for moving the valve core 5.

[0021] Furthermore, the connecting plate 3 includes a plate body 301 , and a screw groove 302 is provided inside the plate body 301 . The connecting plate 3 is used to install the bolt 2 .

[0022] Furthermore, the screw plug 4 includes a blocking block 401, a sealing ring 402 is fixedly connected to the inside of the blocking block 401, a spring 403 is fixedly connected to the top of the blocking block 401, a thread is provided on the outside of the screw plug 4, and a matching groove is provided at the bottom of the inside of the valve housing 1, so that the screw plug 4 can be installed in the inside of the valve housing 1, the sealing ring 402 is used for the sealing between the valve core 5 and it, and the top of the spring 403 is fixed to the valve core 5.

[0023] Further, the valve core 5 includes a core body 501, a sealing sleeve 502 is fixedly connected to the outer side of the core body 501, a through groove 503 is provided on the upper part of the core body 501, a top pad 505 is fixedly connected to the top of the core body 501, a through hole 504 is provided inside the top pad 505 and the top of the core body 501, a connecting rod 506 is fixedly connected to the middle of the top of the core body 501, a lower cylinder 507 is fixedly connected to the bottom of the core body 501, and an inner cavity 508 is provided inside the core body 501 and the lower cylinder 507. The valve core 5 can move inside the valve housing 1. When the pressure is not measured, the valve core 5 can be pressed against the valve housing 1 under the action of the spring 403, so that the top pad 505 contacts the valve housing 1, and the pressure measuring joint is sealed. When the pressure is required, the pressure measuring hose is screwed onto the upper thread 102, so that its own push rod pushes the valve core 5 downward, and then the top of the top pad 505 leaves the valve housing 1, so that the through groove 503, the through hole 504 and the inner cavity 508 are connected, and then the pressure measuring joint is opened.

[0024] Furthermore, the connecting column 6 includes a column body 601 , one end of which is fixedly connected to a top block 602 , and a top groove 603 is provided on the top of the top block 602 , and the top groove 603 is used for the insertion of the bolt 2 .

[0025] The working principle of the utility model is as follows: when the pressure is not measured, the valve core 5 can be pressed against the valve housing 1 under the action of the spring 403, so that the top pad 505 contacts the valve housing 1, so that the pressure measuring joint is sealed. When the pressure measurement is required, the pressure measuring hose is screwed on the upper thread 102, so that its own push rod pushes the valve core 5 to move downward, thereby making the top of the top pad 505 leave the valve housing 1, so that the through groove 503, the through hole 504 and the inner cavity 508 are connected, thereby making the pressure measuring joint open. When the air pressure is high, the air pressure exerts a large thrust on the valve core 5, so that it is tightly pressed on the valve housing 1, by screwing the bolt 2 and screwing it in different directions, it can move up and down inside the connecting plate 3, thereby making it able to push into the top groove 603, and as it continues to move downward, it drives the connecting column 6 to make the valve core 5 move downward, thereby making the pressure measuring joint open, and then the hose can be installed on the valve housing 1.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pressure measuring joint that is easy to open, comprising a valve housing (1), characterized in that: A screw plug (4) is movably connected to the lower part of the interior of the valve housing (1), a valve core (5) is fixedly connected to the top of the screw plug (4), connecting columns (6) are fixedly connected to both sides of the valve core (5), a connecting plate (3) is fixedly connected to the outer side of the valve housing (1), a bolt (2) is movably connected to the interior of the connecting plate (3), the bolt (2) comprises a screw block (201), a screw column (202) is fixedly connected to the bottom of the screw block (201), and a tightening thread (203) is provided on the outer side of the screw column (202).

2. The easy-to-open pressure measuring joint according to claim 1, characterized in that: The valve housing (1) comprises an upper housing (101), the outer side of the upper housing (101) is provided with an upper thread (102), the bottom of the upper housing (101) is fixedly connected to a hexagonal block (103), the bottom of the hexagonal block (103) is fixedly connected to a middle housing (105), both sides of the middle housing (105) are provided with movable grooves (104), the bottom of the movable grooves (104) is fixedly connected to a lower housing (108), the outer side of the lower housing (108) is fixedly connected to a sealing gasket (106), the outer side of the lower housing (108) is provided with a lower thread (107), and the interiors of the upper housing (101), the hexagonal block (103), the middle housing (105) and the lower housing (108) are all provided with cavities (109).

3. The easy-to-open pressure measuring joint according to claim 1, characterized in that: The connecting plate (3) comprises a plate body (301), and a screw groove (302) is provided inside the plate body (301).

4. The easy-to-open pressure measuring joint according to claim 1, characterized in that: The screw plug (4) comprises a blocking block (401), a sealing ring (402) is fixedly connected inside the blocking block (401), and a spring (403) is fixedly connected to the top of the blocking block (401).

5. The easy-to-open pressure measuring joint according to claim 1, characterized in that: The valve core (5) comprises a core body (501), a sealing sleeve (502) is fixedly connected to the outer side of the core body (501), a through groove (503) is provided on the upper part of the interior of the core body (501), a top pad (505) is fixedly connected to the top of the core body (501), the interior of the top pad (505) and the top of the core body (501) are both provided with through holes (504), a connecting rod (506) is fixedly connected to the middle of the top of the core body (501), a lower tube (507) is fixedly connected to the bottom of the core body (501), and an inner cavity (508) is provided inside the core body (501) and the lower tube (507).

6. The easy-to-open pressure measuring joint according to claim 1, characterized in that: The connecting column (6) comprises a column body (601), one end of the column body (601) is fixedly connected to a top block (602), and a top groove (603) is provided at the top of the top block (602).

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