Water pressure measuring device

Abstract

The utility model relates to the technical field of water pressure measurement, and discloses a water pressure measuring device which comprises a water pressure gauge body, and a connecting mechanism is fixedly installed at the bottom of the water pressure gauge body. The connecting mechanism comprises a connecting piece, the connecting piece is fixedly installed at the bottom of the water pressure gauge body, a center pipe is fixedly installed at the bottom of the connecting piece, a communicated channel is formed in the center of the connecting piece and the center of the center pipe, and the channel is communicated with a medium inlet in the water pressure gauge body. During installation, the bottom end of the central pipe is inserted into the internal thread through opening of the pipeline, then the external thread pipe slides down to be aligned with the internal thread through opening of the pipeline, the external thread pipe is screwed into the internal thread through opening until the inner wall of the top of the external thread pipe is pressed on the sealing ring, and installation of the water pressure gauge body can be completed. In the installation process, the water pressure gauge body only needs to move downwards together with the center pipe, rotation is not needed, and therefore the water pressure gauge can be applied to a small space.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pressure measurement technical field, concretely is a water pressure measuring device. BACKGROUND

[0002] Water pressure gauge is a most commonly used water pressure measuring device, in industrial control process and technical measurement process, due to the elastic sensitive element of mechanical water pressure gauge has very high mechanical strength and the characteristics such as convenient production, make mechanical water pressure gauge get more and more extensive application, the existing water pressure gauge is connected to the pipeline, and is connected to the internal thread through hole on the pipeline by the threaded connection piece on the bottom in general, needs to rotate water pressure gauge itself and drives threaded connection piece to rotate into the internal thread through hole when installing, but when the installation space is limited (the pipeline is complex and the distance between adjacent pipes is small), it is inconvenient to rotate the water pressure gauge, and the water pressure gauge needs to be rotated slowly, and there is a possibility of collision between the water pressure gauge and the pipeline during rotation. UTILITARY MODEL

[0003] The utility model discloses a water pressure measuring device to solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a water pressure measuring device, including water pressure gauge main part, the bottom fixed mounting of water pressure gauge main part has the connecting mechanism,

[0005] The connecting mechanism includes a connecting piece, the connecting piece is fixedly installed at the bottom of the water pressure gauge main body, a central tube is fixedly installed at the bottom of the connecting piece, a communication channel is formed at the center of the connecting piece and the central tube, and the channel is in communication with the medium inlet on the water pressure gauge main body, an outer thread tube is slidably sleeved on the outer wall of the central tube, an installation ring one is fixedly installed on the outer wall of the central tube, a sealing ring is fixedly installed on the top of the installation ring one, the inner side of the sealing ring is fixedly connected with the outer wall of the central tube, the installation ring one and the sealing ring are located on the inner side of the outer thread tube, and when the top inner wall of the outer thread tube is pressed on the sealing ring, the bottom end of the outer thread tube is flush with the bottom end of the central tube.

[0006] Further, a hexagonal sleeve is fixedly installed on the outer wall of the outer thread tube, the hexagonal sleeve is integrally formed with the outer thread tube, and the connection between the hexagonal sleeve and the outer thread tube is close to the top end of the outer thread tube.

[0007] Further, an inclined groove is formed on the side surface of the hexagonal sleeve, the inclined groove is provided with five, and is distributed on the five side surfaces of the hexagonal sleeve.

[0008] Further, the outer wall of the center pipe is fixedly installed with a mounting ring two, the mounting ring two is close to the bottom end of the center pipe, the inner wall of the outer threaded pipe is fixedly installed with a fixed ring, the fixed ring is slidably sleeved on the center pipe, and the fixed ring is located between the mounting ring one and the mounting ring two, the top of the mounting ring two is fixedly installed with a limiting rod, the bottom of the fixed ring is provided with an arc-shaped groove, and the limiting rod extends into the arc-shaped groove.

[0009] Further, the upper surface of the mounting ring two is fixedly installed with a sealing gasket, and the limiting rod passes through the sealing gasket.

[0010] Further, the outer wall of the connecting piece is provided with a positioning groove, and the outer wall of the hexagonal sleeve is fixedly provided with a positioning protrusion.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1、In the installation, first, the bottom end of the center pipe is inserted into the inner threaded through hole of the pipeline, then the outer threaded pipe is aligned with the inner threaded through hole of the pipeline, the outer threaded pipe is rotated to be screwed into the inner threaded through hole, until the top inner wall of the outer threaded pipe presses on the sealing ring, the installation of the water pressure gauge main body is completed, because the water pressure gauge main body only needs to be moved downward with the center pipe in the installation process, without rotation, so it can be applied in smaller space.

[0013] 2、The mounting ring one is arranged for installing the sealing ring, and the sealing ring is arranged to improve the support of the sealing ring, and the sealing ring is arranged to ensure the sealing property between the outer threaded pipe and the center pipe, so as to avoid the leakage of the flowing medium between the outer threaded pipe and the center pipe. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the utility model in the installation state;

[0015] Figure 2 It is a structure schematic view of the utility model in the non-installation state;

[0016] Figure 3 It is a structure schematic view of the connecting mechanism of the utility model;

[0017] Figure 4 It is a structure schematic view of the utility model Figure 3 It is a structure schematic view of the utility model

[0018] Figure 5 It is a structure schematic view of the utility model Figure 3 It is a structure schematic view of the utility model

[0019] In the figure: 1, water pressure gauge main body; 2, connecting mechanism; 201, connecting piece; 202, central tube; 203, outer threaded tube; 204, mounting ring one; 205, sealing ring; 3, hexagonal sleeve; 4, inclined groove; 5, mounting ring two; 6, fixed ring; 7, limiting rod; 8, arc-shaped groove; 9, sealing gasket; 10, positioning protrusion; 11, positioning groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Please refer to Figures 1-5 The utility model provides a technical scheme: a water pressure measuring device, including water pressure gauge main body 1, water pressure gauge main body 1's bottom fixed installation has connecting mechanism 2,

[0022] Connecting mechanism 2 includes connecting piece 201, connecting piece 201 is fixedly installed at the bottom of water pressure gauge main body 1, the bottom of connecting piece 201 is fixedly installed with central tube 202, the center of connecting piece 201, central tube 202 is provided with the channel that communicates, and the channel is communicated with the medium inlet on water pressure gauge main body 1, the outer wall of central tube 202 is slidably sleeved with outer threaded tube 203, the outer wall of central tube 202 is fixedly installed with mounting ring one 204, the top of mounting ring one 204 is fixedly installed with sealing ring 205, the inner side of sealing ring 205 is fixedly connected with the outer wall of central tube 202, mounting ring one 204, sealing ring 205 are located at the inner side of outer threaded tube 203, and when the top inner wall of outer threaded tube 203 is pressed on sealing ring 205, the bottom end of outer threaded tube 203 is flush with the bottom end of central tube 202, in the installation, first, the bottom end of central tube 202 is inserted into the internal thread through port of pipeline, then, the outer threaded tube 203 is slid down and is aligned with the internal thread through port of pipeline, the outer threaded tube 203 is rotated and is rotated into the internal thread through port, until the top inner wall of outer threaded tube 203 is pressed on sealing ring 205, the installation of water pressure gauge main body 1 can be completed, because in the installation process, water pressure gauge main body 1 only needs to be moved down with central tube 202, without rotating, so it can be applied in smaller space, setting mounting ring one 204 is used for installing sealing ring 205, improves the support for sealing ring 205, setting sealing ring 205 is used to ensure the sealing between outer threaded tube 203 and central tube 202, avoids the leakage of flowing medium between outer threaded tube 203 and central tube 202;

[0023] The outer wall of the external thread pipe 203 is fixedly provided with a hexagonal sleeve 3, the hexagonal sleeve 3 is integrally formed with the external thread pipe 203, and the connection position of the hexagonal sleeve 3 and the external thread pipe 203 is close to the top end of the external thread pipe 203, so that the user can rotate the external thread pipe 203 by using a wrench or a special workpiece;

[0024] The side surface of the hexagonal sleeve 3 is provided with five inclined grooves 4, which are distributed on the five side surfaces of the hexagonal sleeve 3. When it is inconvenient to use a wrench or other rotating tools, a small crowbar can be used to pry into the inclined grooves 4, and then the hexagonal sleeve 3 is rotated, thereby rotating the external thread pipe 203;

[0025] The outer wall of the central pipe 202 is fixedly provided with a mounting ring two 5 close to the bottom end of the central pipe 202, the inner wall of the external thread pipe 203 is fixedly provided with a fixed ring 6, the fixed ring 6 is slidably sleeved on the central pipe 202, and the fixed ring 6 is located between the mounting ring one 204 and the mounting ring two 5, the top of the mounting ring two 5 is fixedly provided with a limiting rod 7, the bottom of the fixed ring 6 is provided with an arc-shaped groove 8, and the limiting rod 7 extends into the arc-shaped groove 8. When the limiting rod 7 extends into the arc-shaped groove 8, the limiting rod 7 can limit the fixed ring 6, so that the rotation angle of the fixed ring 6 is limited, thereby limiting the rotation angle of the external thread pipe 203, avoiding that the water pressure gauge body 1 can rotate relative to the external thread pipe 203 after the installation of the water pressure gauge body 1 is completed, and thereby causing great wear of the sealing ring 205 between the external thread pipe 203 and the central pipe 202;

[0026] The upper surface of the mounting ring two 5 is fixedly provided with a sealing gasket 9, the limiting rod 7 passes through the sealing gasket 9, and a primary sealing is formed between the mounting ring two 5 and the fixed ring 6, thereby improving the sealing between the central pipe 202 and the external thread pipe 203, and also forming a buffer between the mounting ring two 5 and the fixed ring 6 by using the elasticity of the sealing gasket 9 itself;

[0027] The outer wall of the connecting piece 201 is provided with a positioning groove 11, and the outer wall of the hexagonal sleeve 3 is fixedly provided with a positioning protrusion 10, which is used to determine the initial position of the external thread pipe 203 relative to the central pipe 202 before installation, and thereby ensuring that the limiting rod 7 can extend into the arc-shaped groove 8 after the external thread pipe 203 is rotated to the right position.

[0028] Working principle: in use, first, the bottom end of the central pipe 202 is inserted into the internal thread through hole of the pipeline, the external thread pipe 203 is rotated, the positioning protrusion 10 on the hexagonal sleeve 3 is aligned with the positioning groove 11 on the connecting piece 201, the top end of the external thread pipe 203 is in contact with the bottom of the connecting piece 201, the initial position is determined, then the external thread pipe 203 is lowered to be aligned with the internal thread through hole of the pipeline, the external thread pipe 203 is rotated to be screwed into the internal thread through hole, until the top inner wall of the external thread pipe 203 is pressed on the sealing ring 205, and the installation of the water pressure gauge body 1 is completed.

[0029] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative labor belong to the scope of protection of the present application.

Claims

1. A water pressure measuring device comprising a water pressure gauge body (1), characterized in that: The bottom of the water pressure gauge body (1) is fixedly installed with a connecting mechanism (2); The connecting mechanism (2) comprises a connecting sheet (201) fixedly installed at the bottom of the water pressure gauge body (1), a central pipe (202) fixedly installed at the bottom of the connecting sheet (201), and a channel communicated and formed at the center of the connecting sheet (201) and the central pipe (202) and communicated with a medium inlet on the water pressure gauge body (1), an outer thread pipe (203) slidably sleeved on the outer wall of the central pipe (202), an installation ring I (204) fixedly installed on the outer wall of the central pipe (202), a sealing ring (205) fixedly installed at the top of the installation ring I (204) and fixedly connected with the outer wall of the central pipe (202), and the installation ring I (204) and the sealing ring (205) located at the inner side of the outer thread pipe (203), and the bottom end of the outer thread pipe (203) flush with the bottom end of the central pipe (202) when the outer thread pipe (203) top inner wall presses on the sealing ring (205).

2. The water pressure measuring device according to claim 1, characterized by: The outer wall of the outer thread pipe (203) is fixedly installed with a hexagonal sleeve (3) integrally formed with the outer thread pipe (203), and the hexagonal sleeve (3) is close to the top end of the outer thread pipe (203) at the connecting position of the hexagonal sleeve (3) and the outer thread pipe (203).

3. A water pressure measuring device according to claim 2, wherein: Five inclined grooves (4) are formed on the side surface of the hexagonal sleeve (3).

4. The water pressure measuring device according to claim 1, characterized by: The outer wall of the central pipe (202) is fixedly installed with an installation ring II (5) close to the bottom end of the central pipe (202), the inner wall of the outer thread pipe (203) is fixedly installed with a fixing ring (6) slidably sleeved on the central pipe (202), the fixing ring (6) is located between the installation ring I (204) and the installation ring II (5), the top of the installation ring II (5) is fixedly installed with a limiting rod (7), the bottom of the fixing ring (6) is formed with an arc-shaped groove (8), and the limiting rod (7) extends into the arc-shaped groove (8).

5. A water pressure measuring device according to claim 4, wherein: The upper surface of the installation ring II (5) is fixedly installed with a sealing gasket (9), and the limiting rod (7) passes through the sealing gasket (9).

6. The water pressure measuring device of claim 1, wherein: The outer wall of the connecting sheet (201) is formed with a positioning groove (11), and the outer wall of the hexagonal sleeve (3) is fixedly provided with a positioning protrusion (10).

Images