Pressure gauge convenient to install

Abstract

The utility model discloses a pressure gauge convenient to install, and particularly relates to the technical field of pressure gauges, the pressure gauge comprises a pressure gauge body, the bottom end of the pressure gauge body is provided with a first sleeving assembly in a threaded manner, the first sleeving assembly comprises a threaded sleeve, and the outer wall of the top end of the threaded sleeve is fixedly connected with a fixing ring. And one side of the fixing ring is provided with an inserting hole, and one side of the fixing ring is fixedly connected with a connecting plate. According to the pressure gauge convenient to install, the first sleeving assembly is installed at the bottom end of the pressure gauge body, and then the second sleeving assembly is installed in the ball valve copper pipe, so that an installation structure is additionally arranged at the joint position of the pressure gauge and the ball valve copper pipe, and installation of the pressure gauge can be completed only by aligning and clamping a clamping cylinder and a threaded sleeve in the installation process; meanwhile, after the position of the connector rusts, the installation structure can be replaced or cleaned, the damage degree of the connector of the pressure gauge is reduced, and therefore the service life of the pressure gauge is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge technology, specifically a pressure gauge that is easy to install. Background Technology

[0002] A pressure gauge is an instrument that uses an elastic element as its sensing element to measure and indicate pressures higher than ambient pressure. It is extremely widely used, found in almost all industrial processes and scientific research fields. It can be seen everywhere in fields such as heat pipelines, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. Especially in industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used due to the high mechanical strength and ease of production of their elastic sensing element.

[0003] When installing a pressure gauge, align the pressure gauge with the threaded opening and gently screw it in a few turns to ensure correct positioning. Carefully tighten the pressure gauge with a wrench until you feel sufficient resistance. Do not use excessive force to prevent damage to the instrument or threads. When installing, you will need to use a wrench, sealing tape, and sealing gaskets.

[0004] Furthermore, certain installation techniques and tools are required during installation. The pressure gauge connector is directly installed with the copper pipe thread of the ball valve. If the thread at the connection point rusts, it will cause damage to the interface, resulting in the pressure gauge being unusable after disassembly. Therefore, it is necessary to propose a pressure gauge that is easy to install to solve the problems of pressure gauge installation and connector damage. Utility Model Content

[0005] The purpose of this invention is to provide a pressure gauge that is easy to install, so as to solve the problems of inconvenient installation and easy damage to connectors mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure gauge that is easy to install, comprising a pressure gauge body, a first sleeve assembly threadedly installed at the bottom end of the pressure gauge body, the first sleeve assembly including a threaded sleeve, a fixing ring fixedly connected to the outer wall of the top end of the threaded sleeve, and an insertion hole opened on one side of the fixing ring, a connecting plate fixedly connected to one side of the fixing ring, and a stud threadedly installed inside the connecting plate, a movable protrusion rotatably connected to one end of the stud, a second sleeve assembly engaging with the outside of the threaded sleeve, the second sleeve assembly including a locking cylinder, a connecting screw cylinder fixedly connected to the bottom end of the locking cylinder, and an insertion piece fixedly connected to the outer wall of the top end of the locking cylinder, a locking groove opened on one side of the top of the insertion piece, and a ball valve copper pipe threadedly connected to the outer wall of the connecting screw cylinder.

[0007] Preferably, the threaded sleeve is threadedly installed on the bottom outer wall of the pressure gauge body, and a connecting sealing ring is fixedly connected to the top inner wall of the threaded sleeve. The four insertion holes are evenly distributed and radially symmetrically opened around the fixing ring, and the central angle between two adjacent insertion holes is ninety degrees. The connecting plate is horizontally arranged on one side of the insertion hole.

[0008] Preferably, one side of the movable protrusion has an arc-shaped structure, and both sides of the movable protrusion have extended portions. The extended portions of the movable protrusion extend toward the connecting plate and move against the outer side of the connecting plate. The outer wall of the threaded sleeve is provided with guide grooves at equal intervals.

[0009] Preferably, the outer wall of the threaded sleeve is fixedly connected to a compression ring, the top end of the compression ring is fixedly connected to the bottom of the fixed ring, and the outer wall of the compression ring has a tapered structure, with the outer diameter of the compression ring gradually decreasing from one end to the other along the axial direction to form a taper.

[0010] Preferably, the engaging sleeve is fitted onto the outside of the threaded sleeve, and the insert pieces are evenly spaced on the outer wall of the engaging sleeve. The insert pieces are inserted into the insert hole and engaged on one side of the movable protrusion through a slot.

[0011] Preferably, the top side of the insert piece has an arc-shaped structure, the slot and the movable protrusion are matched in shape, and the movable protrusion is tightly fitted inside the slot. Limiting strips are provided at equal intervals on the inner wall of the engaging cylinder.

[0012] Preferably, the limiting strip is movably disposed inside the guide groove, and a locking sealing ring is fixedly connected to the inner wall of the top end of the locking cylinder, and the locking sealing ring is pressed against the outer wall of the compression ring. The locking cylinder is sealed and installed with the threaded sleeve through the locking sealing ring and the compression ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the pressure gauge is easy to install;

[0014] 1. By installing the first sleeve assembly at the bottom of the pressure gauge body and the second sleeve assembly inside the ball valve copper pipe, an installation structure is added to the joint position of the pressure gauge and the ball valve copper pipe. During installation, the pressure gauge can be installed simply by aligning and engaging the locking sleeve and the threaded sleeve, thereby improving the convenience of pressure gauge installation. At the same time, if rust appears at the joint position, the installation structure can be replaced or cleaned to reduce the damage to the pressure gauge joint and thus increase the service life of the pressure gauge.

[0015] 2. By turning the stud outward, the moving protrusion is moved out of the slot, making it easy to separate the locking sleeve and the threaded sleeve. This facilitates the quick disassembly of the pressure gauge, making maintenance easier and increasing the practicality of the pressure gauge. At the same time, the compression ring deforms the locking sealing ring, increasing the sealing between the threaded sleeve and the locking sleeve, ensuring the sealing effect of the installation structure, and thus guaranteeing the normal use of the pressure gauge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the first socket component and the second socket component of this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled structure of socket component one and socket component two of this utility model;

[0020] Figure 5 This is a schematic diagram showing the disassembled structure of the extrusion ring and threaded sleeve of this utility model.

[0021] In the diagram: 1. Pressure gauge body; 2. Sleeve assembly one; 21. Threaded sleeve; 22. Retaining ring; 23. Insertion hole; 24. Connecting plate; 25. Stud; 26. Moving protrusion; 27. Guide groove; 28. Connecting sealing ring; 29. ​​Extrusion ring; 3. Sleeve assembly two; 31. Engaging sleeve; 32. Connecting screw; 33. Insertion piece; 34. Slot; 35. Limiting strip; 36. Engaging sealing ring; 4. Ball valve copper pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution: a pressure gauge that is easy to install, including a pressure gauge body 1. A sleeve assembly 2 is threadedly installed at the bottom end of the pressure gauge body 1. The sleeve assembly 2 includes a threaded sleeve 21. A fixing ring 22 is fixedly connected to the outer wall of the top end of the threaded sleeve 21. An insertion hole 23 is opened on one side of the fixing ring 22. A connecting plate 24 is fixedly connected to one side of the fixing ring 22. The threaded sleeve 21 is threadedly installed on the outer wall of the bottom end of the pressure gauge body 1. A connecting sealing ring 28 is fixedly connected to the inner wall of the top end of the threaded sleeve 21. The connecting sealing ring 28 facilitates the increase of the sealing performance between the threaded sleeve 21 and the pressure gauge body 1. Four insertion holes 23 are evenly distributed and radially symmetrically opened around the fixing ring 22, and adjacent insertion holes 23 are evenly distributed and radially symmetrically opened around the fixing ring 22. The central angle between the insertion holes 23 is 90 degrees. The connecting plate 24 is horizontally positioned on one side of the insertion hole 23, and a stud 25 is installed on the internal thread of the connecting plate 24. One end of the stud 25 is rotatably connected to a movable protrusion 26. One side of the movable protrusion 26 has an arc-shaped structure, and both sides of the movable protrusion 26 have extensions. The extensions of the movable protrusion 26 extend towards the connecting plate 24 and move against the outside of the connecting plate 24. The extensions of the movable protrusion 26 facilitate the overall positioning of the movable protrusion 26. When the stud 25 is turned, the stud 25 rotates inside the movable protrusion 26. Because the stud 25 rotates and moves within the internal thread of the connecting plate 24, the movable protrusion 26 moves horizontally under the limiting position, allowing the movable protrusion 26 to move. Engaging or disengaging with the insert piece 33, the threaded sleeve 21 has guide grooves 27 evenly spaced on its outer wall. A compression ring 29 is fixedly connected to the outer wall of the threaded sleeve 21, with its top end fixedly connected to the bottom of the fixed ring 22. The outer wall of the compression ring 29 exhibits a tapered structure, with its outer diameter gradually decreasing from one end to the other along the axial direction, forming a taper. The compression ring 29 facilitates the gradual compression of the engagement sealing ring 36 by its shape when the threaded sleeve 21 enters the engagement sleeve 31, thereby deforming and sealing the engagement sealing ring 36 between the threaded sleeve 21 and the engagement sleeve 31, thus increasing the sealing performance of the connection between the threaded sleeve 21 and the engagement sleeve 31. The threaded sleeve 21 is externally engaged with a sleeve assembly. The second and third fitting components include a locking cylinder 31, with a connecting screw cylinder 32 fixedly connected to the bottom end of the locking cylinder 31, and an insertion piece 33 fixedly connected to the outer wall of the top end of the locking cylinder 31. A slot 34 is provided on one side of the top of the insertion piece 33. The locking cylinder 31 is fitted onto the outside of the threaded sleeve 21, and the insertion pieces 33 are evenly spaced on the outer wall of the locking cylinder 31. The insertion pieces 33 are inserted into the insertion hole 23, and are engaged with one side of the moving protrusion 26 via the slot 34. One side of the top of the insertion piece 33 has an arc-shaped structure, and the arc surface of the top of the insertion piece 33 is opposite to the arc surface of one side of the moving protrusion 26. Therefore, when the insertion piece 33 moves to one side of the moving protrusion 26, the arc surface of the moving protrusion 26 facilitates the compression and deformation of the insertion piece 33.This allows the insert piece 33 to continue moving, engaging the movable protrusion 26 within the slot 34. The slot 34 and the movable protrusion 26 are shaped to match each other, and the movable protrusion 26 fits tightly against the inside of the slot 34, thus facilitating the fixing of the insert piece 33 via the movable protrusion 26. Limiting strips 35 are evenly spaced on the inner wall of the engaging cylinder 31, and these limiting strips 35 are movably positioned within the guide groove 27, facilitating the alignment and installation of the threaded sleeve 21 and the engaging cylinder 31. A engaging sealing ring 36 is fixedly connected to the inner wall of the top of the engaging cylinder 31, and the engaging sealing ring 36 is pressed against the outer wall of the compression ring 29. The engaging cylinder 31 is sealed to the threaded sleeve 21 via the engaging sealing ring 36 and the compression ring 29. A ball valve copper pipe 4 is threadedly connected to the outer wall of the connecting screw cylinder 32.

[0024] Working principle: When using this easy-to-install pressure gauge, tighten the threaded sleeve 21 onto the bottom outer wall of the pressure gauge body 1, then screw the connecting screw 32 into the ball valve copper tube 4. Next, align the guide groove 27 with the limit strip 35 and push the threaded sleeve 21 into the locking sleeve 31. Then, insert the plug-in piece 33 into the plug-in hole 23 until the top of the plug-in piece 33 presses against the moving protrusion 26, causing the top of the plug-in piece 33 to bend to one side. Then, the plug-in piece 33 moves to lock the moving protrusion 26. The connector is inserted into the slot 34, and the connector 33 is fixed inside the connector hole 23. This allows the pressure gauge body 1 and the ball valve copper pipe 4 to be installed and fixed through the first socket assembly 2 and the second socket assembly 3. During disassembly, the stud 25 is turned inside the connecting plate 24, and the moving protrusion 26 is moved to one side of the connecting plate 24, so that the moving protrusion 26 is moved out of the slot 34. Then, the pressure gauge body 1 can be pulled to remove the first socket assembly 2 from the second socket assembly 3, thus completing the disassembly operation of the pressure gauge.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure gauge that is easy to install, comprising a pressure gauge body (1), characterized in that: The pressure gauge body (1) is threadedly fitted with a first sleeve assembly (2) at its bottom end. The first sleeve assembly (2) includes a threaded sleeve (21). A fixing ring (22) is fixedly connected to the outer wall of the top end of the threaded sleeve (21). An insertion hole (23) is provided on one side of the fixing ring (22). A connecting plate (24) is fixedly connected to one side of the fixing ring (22). A stud (25) is threadedly installed inside the connecting plate (24). One end of the stud (25) is rotatably connected to... The threaded sleeve (21) is provided with a movable protrusion (26), and the external engagement of the threaded sleeve (21) is provided with a sleeve assembly two (3). The sleeve assembly two (3) includes a engagement cylinder (31). The bottom end of the engagement cylinder (31) is fixedly connected to a connecting screw cylinder (32), and the top outer wall of the engagement cylinder (31) is fixedly connected to a plug-in piece (33). A slot (34) is provided on one side of the top of the plug-in piece (33). The outer wall of the connecting screw cylinder (32) is threadedly connected to a ball valve copper pipe (4).

2. The pressure gauge for easy installation according to claim 1, characterized in that, The threaded sleeve (21) is threadedly installed on the bottom outer wall of the pressure gauge body (1), and a connecting sealing ring (28) is fixedly connected to the top inner wall of the threaded sleeve (21). The four insertion holes (23) are evenly distributed and radially symmetrically opened around the fixing ring (22), and the central angle between two adjacent insertion holes (23) is ninety degrees. The connecting plate (24) is horizontally arranged on one side of the insertion hole (23).

3. The pressure gauge for easy installation according to claim 1, characterized in that, The movable protrusion (26) has an arc-shaped structure on one side, and the movable protrusion (26) has an extension on both sides. The extension of the movable protrusion (26) extends toward the connecting plate (24) and moves against the outside of the connecting plate (24). The outer wall of the threaded sleeve (21) is provided with guide grooves (27) at equal intervals.

4. The pressure gauge that is easy to install according to claim 1, characterized in that, The outer wall of the threaded sleeve (21) is fixedly connected to a compression ring (29). The top end of the compression ring (29) is fixedly connected to the bottom of the fixed ring (22), and the outer wall of the compression ring (29) has a tapered structure. The outer diameter of the compression ring (29) gradually decreases from one end to the other along the axial direction to form a taper.

5. A pressure gauge that is easy to install according to claim 1, characterized in that, The engaging sleeve (31) is sleeved on the outside of the threaded sleeve (21), and the insert pieces (33) are evenly distributed on the outer wall of the engaging sleeve (31). The insert pieces (33) are inserted into the insert hole (23), and the insert pieces (33) are engaged on one side of the moving protrusion (26) through the slot (34).

6. A pressure gauge that is easy to install according to claim 1, characterized in that, The top side of the plug-in piece (33) has an arc-shaped structure. The slot (34) and the movable protrusion (26) are matched in shape, and the movable protrusion (26) fits tightly inside the slot (34). Limiting strips (35) are provided at equal intervals on the inner wall of the locking cylinder (31).

7. A pressure gauge that is easy to install according to claim 6, characterized in that, The limiting strip (35) is movably disposed inside the guide groove (27). The inner wall of the top end of the locking cylinder (31) is fixedly connected with a locking sealing ring (36), and the locking sealing ring (36) is pressed against the outer wall of the compression ring (29). The locking cylinder (31) is sealed and installed with the threaded sleeve (21) through the locking sealing ring (36) and the compression ring (29).

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