Pressure gauge movable joint capable of preventing looseness

Abstract

The utility model relates to the technical field of pressure gauge joints, and discloses an anti-loosening pressure gauge movable joint, which comprises a joint main body, a pressure gauge main body in threaded sleeve connection with the top of the joint main body, a cylindrical gear in fixed sleeve connection with the bottom of the outer side of the pressure gauge main body, and a mounting plate in fixed connection with the top of the right side of the joint main body, a first fixing assembly is installed on the left side of the top of the mounting plate, a second fixing assembly is installed on the right side of the top of the mounting plate, the side face of the first supporting plate is sleeved with a threaded column in a threaded mode, a fixing plate is fixedly connected to the left side of the threaded column, and fixing teeth are arranged on the surface of the left side of the fixing plate. The handle block is rotated to drive the threaded column to rotate, and the threaded column drives the fixing plate to move to the left side, so that the fixing teeth are engaged with the outer side of the cylindrical gear, the cylindrical gear is fixed, the pressure gauge body is prevented from loosening and rotating due to vibration after long-term use, and the installation stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauge joints, and more specifically to a loose-proof pressure gauge flexible joint. Background Art

[0002] The pressure gauge joint is a connector used to connect the equipment or pipeline of the measured medium and the pressure gauge. There are various forms of pressure gauge joints, including welded pipe joints, expansion pipe joints, tee intermediate joints, elbow intermediate joints, straight intermediate joints, straight cone pipe joints, pressure gauge straight joints, ferrule pipe joints, etc.

[0003] When installing the pressure gauge joint, it is necessary to ensure the sealing of the connection, so it is essential to install it through tightening tools. At the same time, in order to ensure the tightness after connection, it is crucial to prevent the pressure gauge joint from loosening. In particular, the pressure gauge joint will loosen with vibration, which will cause its sealing to decrease, thereby reducing the tightness and sealing of the connection. At the same time, considering the importance of sealing at the connection, we proposed a pressure gauge flexible joint that can prevent loosening, which is convenient for preventing the pressure gauge joint from loosening after connection, in order to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a loose-proof pressure gauge flexible joint to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a pressure gauge flexible joint that can prevent loosening, comprising a joint body, the top threaded sleeve of the joint body is connected with the pressure gauge body, the bottom outer side of the pressure gauge body is fixedly sleeved with a cylindrical gear, the top of the right side of the joint body is fixedly connected with a mounting plate, the left side of the top of the mounting plate is installed with a first fixing component, the right side of the top of the mounting plate is installed with a second fixing component, the first fixing component comprises a first supporting plate fixedly connected to the top of the mounting plate, the side surface of the first supporting plate is threadedly sleeved with a threaded column, the right side of the threaded column is fixedly connected with a handle block, the left side of the threaded column is fixedly connected with a fixing plate, and the surface of the left side of the fixing plate is provided with fixing teeth.

[0006] Furthermore, a hexagonal block is fixedly connected to the top of the outer side of the joint body, and a fixing rod is fixedly connected to the bottom of the outer side of the joint body.

[0007] Furthermore, the front and back sides of the right side of the fixing plate are fixedly connected with positioning rods, and the positioning rods are movably sleeved with the first supporting plate.

[0008] Furthermore, a protective groove is provided on the outer side of the handle block, and a polygonal pyramid groove is provided on the right side of the handle block.

[0009] Furthermore, the second fixing assembly includes a second supporting plate fixedly connected to the top of the mounting plate, a fixing tube is fixedly sleeved on the side of the second supporting plate, a telescopic rod is movably sleeved on the inner side of the fixing tube, a handle ring is fixedly connected to the right side of the telescopic rod, a stopper is fixedly connected to the left side of the telescopic rod, a polygonal pyramid block is fixedly connected to the left side of the stopper, a pressure spring is arranged on the outer side of the fixing tube, and the pressure spring is located between the stopper and the second supporting plate.

[0010] Furthermore, the front and back sides of the inner wall of the fixed tube are provided with slide grooves, the front and back sides of the telescopic rod are fixedly connected with limit blocks, and the limit blocks and the slide grooves are adapted to each other.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model is provided with a first fixing component. The handle ring is pulled to the right to drive the polygonal pyramid block to separate from the inner side of the polygonal pyramid groove. Then the handle block is rotated to drive the threaded column to rotate. Under the action of the thread thrust of the first support plate and the threaded column, the threaded column drives the fixing plate to move to the left side, so that the fixing teeth are engaged with the outer side of the cylindrical gear to fix the cylindrical gear, thereby preventing the pressure gauge body from loosening and rotating due to vibration during long-term use, thereby improving the stability of the installation.

[0013] 2. The utility model is provided with a second fixing component. The pressure spring releases the elastic force and drives the telescopic rod to move to the left along the inner side of the fixing tube through the stop block, so that the polygonal pyramid block is inserted into the inner side of the polygonal pyramid groove. Due to the positioning effect of the slide groove and the telescopic rod, the telescopic rod and the polygonal pyramid block cannot rotate. Then the polygonal pyramid block can fix the handle block and the threaded column to prevent the threaded column from rotating, thereby achieving the fixing effect of the first fixing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the first fixing component of the utility model.

[0016] Figure 3 This is a schematic diagram of the polygonal pyramid groove structure of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the second fixing component of the utility model.

[0018] Figure 5 This is a schematic diagram of the slide structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. joint body; 101. mounting plate; 102. hexagonal block; 103. fixing rod; 2. pressure gauge body; 201. cylindrical gear; 3. first fixing assembly; 301. first support plate; 302. threaded column; 303. handle block; 331. protective groove; 332. polygonal pyramid groove; 304. fixing plate; 305. fixing tooth; 306. positioning rod; 4. second fixing assembly; 401. second support plate; 402. fixing tube; 421. slide groove; 403. telescopic rod; 431. limit block; 404. handle ring; 405. stop block; 406. polygonal pyramid block; 407. pressure spring. DETAILED DESCRIPTION

[0020] 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. The anti-loosening pressure gauge flexible 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.

[0021] Reference Figure 1-Figure 5 The utility model provides a pressure gauge movable joint that can prevent loosening, including a joint body 1, a pressure gauge body 2 is threadedly sleeved on the top of the joint body 1, a cylindrical gear 201 is fixedly sleeved on the bottom outside of the pressure gauge body 2, a mounting plate 101 is fixedly connected to the top of the right side of the joint body 1, a first fixing component 3 is installed on the left side of the top of the mounting plate 101, and a second fixing component 4 is installed on the right side of the top of the mounting plate 101. The first fixing component 3 includes a first supporting plate 301 fixedly connected to the top of the mounting plate 101, a threaded column 302 is threadedly sleeved on the side of the first supporting plate 301, a handle block 303 is fixedly connected to the right side of the threaded column 302, a fixing plate 304 is fixedly connected to the left side of the threaded column 302, and a fixing tooth 305 is arranged on the surface of the left side of the fixing plate 304.

[0022] In the embodiment of the present application, after the pressure gauge body 2 and the joint body 1 are tightened and installed, the handle ring 404 is pulled to the right to drive the polygonal pyramid block 406 to separate from the inner side of the polygonal pyramid groove 332, and then the handle block 303 is rotated to drive the threaded column 302 to rotate. Under the action of the thread thrust of the first support plate 301 and the threaded column 302, the threaded column 302 drives the fixing plate 304 to move to the left, so that the fixing teeth 305 are engaged with the outer side of the cylindrical gear 201, and the cylindrical gear 201 is fixed, so as to prevent the pressure gauge body 2 from loosening and rotating due to vibration during long-term use, thereby improving the stability of the installation;

[0023] Then the handle ring 404 is loosened, the pressure spring 407 releases its elastic force, and the telescopic rod 403 is driven to move to the left along the inner side of the fixed tube 402 through the stop block 405, so that the polygonal pyramid block 406 is inserted into the inner side of the polygonal pyramid groove 332. Due to the positioning effect of the slide groove 421 and the telescopic rod 403, the telescopic rod 403 and the polygonal pyramid block 406 cannot rotate, and then the polygonal pyramid block 406 can fix the handle block 303 and the threaded column 302 to prevent the threaded column 302 from rotating, thereby achieving the fixing effect on the first fixing component 3.

[0024] In a preferred embodiment, a hexagonal edge block 102 is fixedly connected to the top of the outer side of the joint body 1, and a fixing rod 103 is fixedly connected to the bottom of the outer side of the joint body 1. The hexagonal edge block 102 facilitates the use of a wrench to install the joint body 1 on the pipe to be tested, and the fixing rod 103 facilitates the direct installation of the joint body 1 on the pipe to be tested by hand.

[0025] In a preferred embodiment, the front and back sides of the right side of the fixed plate 304 are fixedly connected with positioning rods 306, and the positioning rods 306 are movably connected to the first support plate 301. The positioning rods 306 limit the fixed plate 304 to avoid deviation of the fixed plate 304 and the fixed tooth 305, so that they can better engage with the outer side of the cylindrical gear 201.

[0026] In a preferred embodiment, a protective groove 331 is provided on the outer side of the handle block 303, and a polygonal pyramid groove 332 is provided on the right side of the handle block 303. The protective groove 331 has an anti-slip effect to prevent the handle block 303 from rotating, and the polygonal pyramid groove 332 is adapted to the polygonal pyramid block 406.

[0027] In a preferred embodiment, the second fixing component 4 includes a second support plate 401 fixedly connected to the top of the mounting plate 101, a fixing tube 402 is fixedly sleeved on the side of the second support plate 401, a telescopic rod 403 is movably sleeved on the inner side of the fixing tube 402, a handle ring 404 is fixedly connected to the right side of the telescopic rod 403, a stopper 405 is fixedly connected to the left side of the telescopic rod 403, a polygonal pyramid block 406 is fixedly connected to the left side of the stopper 405, a pressure spring 407 is arranged on the outer side of the fixing tube 402, the pressure spring 407 is located between the stopper 405 and the second support plate 401, the pressure spring 407 has a thrust to the left on the stopper 405, so that the polygonal pyramid block 406 is inserted into the inside of the polygonal pyramid groove 332 to fix the handle block 303.

[0028] In a preferred embodiment, a slide groove 421 is provided on the front and back sides of the inner wall of the fixed tube 402, and a limit block 431 is fixedly connected to the front and back sides of the telescopic rod 403. The limit block 431 and the slide groove 421 are adapted to each other. Through the positioning effect of the slide groove 421 and the telescopic rod 403, the telescopic rod 403 cannot rotate on the inner side of the fixed tube 402.

[0029] The working principle of the utility model is as follows: after the pressure gauge body 2 and the joint body 1 are tightened and installed, the handle ring 404 is pulled to the right to drive the polygonal pyramid block 406 to separate from the inner side of the polygonal pyramid groove 332, and then the handle block 303 is rotated to drive the threaded column 302 to rotate. Under the thread thrust of the first support plate 301 and the threaded column 302, the threaded column 302 drives the fixing plate 304 to move to the left, so that the fixing teeth 305 are engaged with the outer side of the cylindrical gear 201, and the cylindrical gear 201 is fixed, so as to prevent the pressure gauge body 2 from loosening and rotating due to vibration during long-term use, thereby improving the stability of the installation;

[0030] Then the handle ring 404 is loosened, the pressure spring 407 releases its elastic force, and the telescopic rod 403 is driven to move to the left along the inner side of the fixed tube 402 through the stop block 405, so that the polygonal pyramid block 406 is inserted into the inner side of the polygonal pyramid groove 332. Due to the positioning effect of the slide groove 421 and the telescopic rod 403, the telescopic rod 403 and the polygonal pyramid block 406 cannot rotate, and then the polygonal pyramid block 406 can fix the handle block 303 and the threaded column 302 to prevent the threaded column 302 from rotating, thereby achieving the fixing effect on the first fixing component 3.

[0031] 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;

[0032] 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;

[0033] 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 gauge flexible joint capable of preventing loosening, comprising a joint body (1), characterized in that: The top of the joint body (1) is threadedly sleeved with a pressure gauge body (2), the bottom of the outer side of the pressure gauge body (2) is fixedly sleeved with a cylindrical gear (201), the top of the right side of the joint body (1) is fixedly connected with a mounting plate (101), the left side of the top of the mounting plate (101) is installed with a first fixing component (3), the right side of the top of the mounting plate (101) is installed with a second fixing component (4), the first fixing component (3) comprises a first supporting plate (301) fixedly connected to the top of the mounting plate (101), a threaded column (302) is threadedly sleeved on the side of the first supporting plate (301), the right side of the threaded column (302) is fixedly connected with a handle block (303), the left side of the threaded column (302) is fixedly connected with a fixing plate (304), and the left side of the fixing plate (304) is provided with fixing teeth (305).

2. The anti-loosening pressure gauge flexible joint according to claim 1, characterized in that: A hexagonal block (102) is fixedly connected to the top of the outer side of the joint body (1), and a fixing rod (103) is fixedly connected to the bottom of the outer side of the joint body (1).

3. The anti-loosening pressure gauge flexible joint according to claim 1, characterized in that: The front and back sides of the right side of the fixed plate (304) are both fixedly connected with positioning rods (306), and the positioning rods (306) are movably sleeved with the first supporting plate (301).

4. The anti-loosening pressure gauge flexible joint according to claim 1, characterized in that: A protection groove (331) is provided on the outer side of the handle block (303), and a polygonal pyramid groove (332) is provided on the right side of the handle block (303).

5. The anti-loosening pressure gauge flexible joint according to claim 1, characterized in that: The second fixing assembly (4) comprises a second support plate (401) fixedly connected to the top of the mounting plate (101); a fixing tube (402) is fixedly sleeved on the side of the second support plate (401); a telescopic rod (403) is movably sleeved on the inner side of the fixing tube (402); a handle ring (404) is fixedly connected to the right side of the telescopic rod (403); a stopper (405) is fixedly connected to the left side of the telescopic rod (403); a polygonal pyramid block (406) is fixedly connected to the left side of the stopper (405); a pressure spring (407) is arranged on the outer side of the fixing tube (402); and the pressure spring (407) is located between the stopper (405) and the second support plate (401).

6. The anti-loosening flexible joint of a pressure gauge according to claim 5, characterized in that: The front and back sides of the inner wall of the fixed tube (402) are both provided with sliding grooves (421), and the front and back sides of the telescopic rod (403) are both fixedly connected to limit blocks (431), and the limit blocks (431) and the sliding grooves (421) are mutually adapted.

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