Multi-purpose adapter for pressure gauge

Abstract

The utility model relates to a multipurpose adapter for a pressure gauge, which belongs to the technical field of adapters and comprises a connecting assembly, the connecting assembly comprises a pressure gauge, a threaded pipe is mounted on the pressure gauge, one end, far away from the pressure gauge, of the threaded pipe is in threaded connection with an adapter, one end, far away from the threaded pipe, of the adapter is fixedly connected with a pressure pipe, and one end of the threaded pipe is sleeved with a rubber ring. The interior of the adapter is rotationally connected with a leakage pressure reduction assembly; the leakage pressure reduction assembly comprises a valve element, a valve channel is formed in the valve element, the inner diameter of a sealing ring is the same as that of the adapter, the sealing ring is fixedly connected to the interior of the valve element, two insertion rods are inserted into the insertion rods, and the left ends and the right ends of the two insertion rods are fixedly connected with sealing pieces. Even if a worker forgets to close the detection pipeline, a large amount of leakage of a medium cannot be caused, meanwhile, when the adapter leaks, the effect of automatically closing the valve can be achieved through the driving assembly, and the leakage amount of the medium is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of adapters, in particular to a multi-purpose adapter for a pressure gauge. Background Art

[0002] A pressure gauge is an instrument used to measure the pressure of gas or liquid. It is widely used in industry, laboratories and daily life. According to different working principles, pressure gauges can be divided into several types: mechanical pressure gauges, electronic pressure gauges, digital pressure gauges, etc. Pressure gauges can measure different types of pressures such as absolute pressure, gauge pressure or vacuum pressure. When choosing a suitable pressure gauge, it is necessary to consider factors such as measurement range, accuracy, and environmental conditions. The pressure gauge adapter is a connector used to seal the measuring pipe.

[0003] Chinese utility model patent 201620867329.2 discloses a pressure gauge airtightness test auxiliary tool, including a pressure gauge adapter, which is a hollow structure with two ends open; a one-way valve base, which is a hollow structure with two ends open, one end of which is screwed into the opening of one end of the pressure gauge adapter, a sealing flat gasket is arranged between the one-way valve base and the pressure gauge adapter, and an adjustment screw, a spring, a one-way valve core and an O-type sealing gasket are arranged in contact and connection from the outside to the inside at one end of the one-way valve base close to the pressure gauge adapter; an equipment adapter, which is a hollow structure with two ends open, and the end of the one-way valve base away from the pressure gauge adapter is screwed into the opening of one end of the equipment adapter. The pressure gauge airtightness test auxiliary tool of the utility model can check the airtightness of the pressure gauge separately, and find the pressure gauge with airtightness failure, which not only improves the equipment utilization rate and work efficiency, but also reduces safety risks and saves costs.

[0004] However, in the above patent, once the pressure gauge is damaged, the detection pipe needs to be sealed before the pressure gauge is disassembled. Once the staff forgets to seal the detection pipe, the medium in the pressure pipe will leak. In addition, for the pressure gauge for detecting positive pressure, once the adapter leaks, it will not only seriously affect the detection result of the pressure gauge, but also cause property loss. For this reason, the applicant proposes a multi-purpose adapter for pressure gauge. Utility Model Content

[0005] The utility model aims to provide a multi-purpose adapter for a pressure gauge, so as to solve the problems in the above-mentioned background technology that the pressure gauge is inconvenient to disassemble and repair and the medium leakage may occur when the adapter is damaged.

[0006] The technical solution of the utility model is:

[0007] The invention comprises a connecting component, a connecting component, and the connecting component comprises a pressure gauge, a threaded tube is installed on the pressure gauge, an end of the threaded tube away from the pressure gauge is threadedly connected with an adapter, an end of the adapter away from the threaded tube is fixedly connected with a pressure tube, one end of the threaded tube is sleeved with a rubber ring, and a leakage pressure reducing component is rotatably connected inside the adapter; the leakage pressure reducing component comprises a valve core, a valve channel is excavated inside the valve core, and the inner diameter of the sealing ring is the same as that of the adapter, a sealing ring is fixedly connected inside the valve core, two plug rods are inserted into the sealing ring, sealing plates are fixedly connected at both left and right ends of the two plug rods, a return spring is fixedly connected between one of the sealing plates and the sealing ring, two fixed plates are fixedly connected to the side wall of one of the sealing plates, a roller is rotatably connected between the two fixed plates, and a driving component is fixedly connected to the upper side wall of the adapter.

[0008] Furthermore, the driving assembly includes a driving box fixedly connected to the upper side wall of the adapter, the upper side wall of the valve core is fixedly connected with a rotating shaft, the upper end of the rotating shaft is fixedly connected with a transmission gear located inside the driving box, the rear side wall of the driving box is slidably connected with a rack, the driving assembly also includes a conical sleeve fixedly connected to the right end of the adapter, the inner side wall of the conical sleeve is fixedly connected with a sealing gasket mounted on a threaded tube, an air cylinder is provided on the upper side of the conical sleeve, an air pipe is connected between the air cylinder and the conical sleeve, a piston fixedly connected to the rack is slidably connected inside the air cylinder, a reminder assembly is installed at one end of the air cylinder, and a tension spring is fixedly connected between the piston and the inner side wall of one end of the air cylinder.

[0009] By providing a leakage pressure reducing component and a driving component, after the pressure gauge is disassembled, the sealing plate can be pulled by the return spring to make the sealing plate fit with the sealing ring, thereby realizing valve core sealing and avoiding leakage of the medium, thereby improving the convenience of disassembly of the pressure gauge. In addition, through the driving component, when the medium leaks, the positive pressure generated by the leakage can be used to drive the piston to move, thereby driving the valve core to rotate, thereby achieving the effect of reducing medium leakage.

[0010] Furthermore, the reminder component includes a pull-rope displacement sensor fixedly connected to one end of the air cylinder, a pull rope is fixedly connected to the detection end of the pull-rope displacement sensor, and the pull rope is fixedly connected to the piston, a buzzer is fixedly connected to the pull-rope displacement sensor, and the pull-rope displacement sensor is electrically connected to the buzzer.

[0011] By setting up a reminder component, when a medium leaks, it can be detected by the pull-rope displacement sensor and a buzzer can be used to sound a reminder, prompting staff to come for repairs in time.

[0012] The utility model provides a multi-purpose adapter for a pressure gauge through improvement, which has the following improvements and advantages compared with the prior art:

[0013] Firstly, the utility model can prevent a large amount of medium leakage even if the staff forgets to close the detection pipeline when the pressure gauge fails. At the same time, when the adapter leaks, the driving component can automatically close the valve to reduce the leakage of the medium.

[0014] Second, the utility model can, after the medium leaks, send out a sound through the buzzer to serve as a reminder, prompting the staff to come for repair in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a three-dimensional stereogram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the connection components in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the leakage pressure reduction component in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the driving component in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the reminder component in the utility model.

[0021] Description of reference numerals:

[0022] 1. Connecting assembly; 101. Pressure gauge; 102. Threaded pipe; 103. Pressure pipe; 104. Adapter; 105. Rubber ring; 2. Leakage pressure reducing assembly; 201. Valve core; 202. Valve channel; 203. Sealing ring; 204. Insert rod; 205. Sealing sheet; 206. Return spring; 207. Fixing plate; 208. Roller; 3. Driving assembly; 301. Driving box; 302. Rotating shaft; 303. Transmission gear; 304. Rack; 305. Conical sleeve; 306. Sealing pad; 307. Air cylinder; 308. Air pipe; 309. Piston; 310. Tension spring; 4. Reminder assembly; 401. Pull rope displacement sensor; 402. Pull rope; 403. Buzzer. DETAILED DESCRIPTION

[0023] The following will be combined with the attached Figures 1 to 5The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a multi-purpose adapter for a pressure gauge through improvement, such as Figure 1 - Figure 5 As shown, it includes a connection component 1, which includes a pressure gauge 101, a threaded tube 102 is installed on the pressure gauge 101, an end of the threaded tube 102 away from the pressure gauge 101 is threadedly connected to an adapter 104, an end of the adapter 104 away from the threaded tube 102 is fixedly connected to a pressure tube 103, a rubber ring 105 is sleeved on one end of the threaded tube 102, and a leakage pressure reduction component 2 is rotatably connected inside the adapter 104;

[0025] The leakage pressure reducing component 2 includes a valve core 201, a valve channel 202 is excavated inside the valve core 201, and the inner diameter of the sealing ring 203 is the same as that of the adapter 104. The sealing ring 203 is fixedly connected inside the valve core 201, and two plug rods 204 are inserted on the sealing ring 203. The left and right ends of the two plug rods 204 are fixedly connected with sealing plates 205, and a return spring 206 is fixedly connected between one of the sealing plates 205 and the sealing ring 203. Two fixed plates 207 are fixedly connected to the side wall of one of the sealing plates 205, and a roller 208 is rotatably connected between the two fixed plates 207. The upper side wall of the adapter 104 is fixedly connected to the driving component 3.

[0026] In this embodiment: when installing the pressure gauge 101, the staff first needs to rotate the threaded tube 102 so that the threaded tube 102 is threadedly fixed to the inside of the adapter 104. At the same time, the threaded tube 102 will push the roller 208 to move, and then drive the sealing sheet 205 to move through the fixing plate 207, so that the sealing sheet 205 is no longer in contact with the sealing ring 203. At this time, the sealing ring 203 is open, and the pressure gauge 101 can detect the pressure value from the pressure tube 103. When the pressure gauge 101 fails, once the staff forgets to close the pressure tube 103 through the valve, they will directly disassemble the pressure gauge 101. The sealing sheet 205 will also contact the sealing ring 203 again under the action of the reset spring 206, thereby effectively preventing a large amount of leakage of the medium.

[0027] In the above embodiment, in order to automatically close the valve through the driving component 3 when the adapter 104 leaks, thereby reducing the leakage of the medium, the following methods can be used for implementation:

[0028] In a preferred embodiment, the drive assembly 3 includes a drive box 301 fixedly connected to the upper side wall of the adapter 104, a rotating shaft 302 is fixedly connected to the upper side wall of the valve core 201, a transmission gear 303 located inside the drive box 301 is fixedly connected to the upper end of the rotating shaft 302, a rack 304 is slidably connected to the rear side wall of the drive box 301, the drive assembly 3 also includes a conical sleeve 305 fixedly connected to the right end of the adapter 104, a sealing gasket 306 mounted on the threaded tube 102 is fixedly connected to the inner side wall of the conical sleeve 305, an air cylinder 307 is arranged on the upper side of the conical sleeve 305, an air pipe 308 is connected between the air cylinder 307 and the conical sleeve 305, a piston 309 fixedly connected to the rack 304 is slidably connected inside the air cylinder 307, a reminder assembly 4 is installed at one end of the air cylinder 307, and a tension spring 310 is fixedly connected between the piston 309 and the inner side wall of one end of the air cylinder 307.

[0029] In this embodiment, when leakage occurs at the connection between the threaded tube 102 and the adapter 104, the leaked medium will flow into the interior of the tapered sleeve 305, and under a positive pressure state, the piston 309 will be driven to move, and the piston 309 will drive the rack 304 to move, so that the rack 304 drives the transmission gear 303 to rotate, and the transmission gear 303 drives the valve core 201 to rotate, thereby reducing the inner diameter of the valve channel 202 and reducing the flow rate that the medium can discharge.

[0030] It is worth noting that since the moving power of the piston 309 is driven by positive pressure, and as the valve core 201 rotates, the pressure of the medium leakage will also decrease, so the valve core 201 may not be completely closed in the end, but the flow rate of medium leakage will be reduced, thereby achieving the effect of reducing the amount of medium leakage. In addition, since the roller 208 is a rotatable circular structure, and the roller 208 is limited by the insertion rod 204 to make it contractible, when the valve core 201 rotates, the roller 208 will be pushed inward by the inner wall of the adapter 104, so the roller 208 will not affect the rotation of the valve core 201.

[0031] refer to Figure 2 and Figure 5 In a preferred embodiment, the reminder component 4 includes a pull-rope displacement sensor 401 fixedly connected to one end of the air cylinder 307, a pull-rope 402 is fixedly connected to the detection end of the pull-rope displacement sensor 401, and the pull-rope 402 is fixedly connected to the piston 309, a buzzer 403 is fixedly connected to the pull-rope displacement sensor 401, and the pull-rope displacement sensor 401 is electrically connected to the buzzer 403.

[0032] In this embodiment, when the piston 309 moves, the pull-wire displacement sensor 401 detects it through the pull wire 402 and sends a signal to the controller, which activates the buzzer 403 to prompt the staff to come for maintenance in time. Among them, the pull-wire displacement sensor 401 and the buzzer 403 are both existing technologies, and their structural principles will not be described in detail. At the same time, the device also includes a power supply, a switch, a controller, a power supply cable and other devices, which are not the main technologies and will not be described in detail.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-purpose adapter for a pressure gauge, comprising a connecting assembly (1), characterized in that: The connection assembly (1) comprises a pressure gauge (101), a threaded tube (102) is mounted on the pressure gauge (101), an end of the threaded tube (102) away from the pressure gauge (101) is threadedly connected to an adapter (104), an end of the adapter (104) away from the threaded tube (102) is fixedly connected to a pressure tube (103), one end of the threaded tube (102) is sleeved with a rubber ring (105), and a leakage pressure reduction assembly (2) is rotatably connected inside the adapter (104); the leakage pressure reduction assembly (2) comprises a valve core (201), a valve channel (202) is excavated inside the valve core (201), and a sealing ring (203) is provided. ) has the same inner diameter as the adapter (104), a sealing ring (203) is fixedly connected inside the valve core (201), two plug rods (204) are inserted into the sealing ring (203), and sealing sheets (205) are fixedly connected to the left and right ends of the two plug rods (204), a return spring (206) is fixedly connected between one of the sealing sheets (205) and the sealing ring (203), two fixed plates (207) are fixedly connected to the side wall of one of the sealing sheets (205), a roller (208) is rotatably connected between the two fixed plates (207), and a drive assembly (3) is fixedly connected to the upper side wall of the adapter (104).

2. A multi-purpose adapter for a pressure gauge according to claim 1, characterized in that: The drive assembly (3) comprises a drive box (301) fixedly connected to the upper side wall of the adapter (104); the upper side wall of the valve core (201) is fixedly connected to a rotating shaft (302); the upper end of the rotating shaft (302) is fixedly connected to a transmission gear (303) located inside the drive box (301); and the rear side wall of the drive box (301) is slidably connected to a rack (304).

3. A multi-purpose adapter for a pressure gauge according to claim 2, characterized in that: The drive assembly (3) further comprises a conical sleeve (305) fixedly connected to the right end of the adapter (104), and a sealing gasket (306) sleeved on the threaded tube (102) is fixedly connected to the inner side wall of the conical sleeve (305).

4. A multi-purpose adapter for a pressure gauge according to claim 3, characterized in that: An air cylinder (307) is arranged on the upper side of the conical sleeve (305); an air pipe (308) is connected between the air cylinder (307) and the conical sleeve (305); a piston (309) fixedly connected to the rack (304) is slidably connected inside the air cylinder (307); and a reminder component (4) is installed at one end of the air cylinder (307).

5. A multi-purpose adapter for a pressure gauge according to claim 4, characterized in that: A tension spring (310) is fixedly connected between the piston (309) and an inner side wall of one end of the gas cylinder (307).

6. A multi-purpose adapter for a pressure gauge according to claim 5, characterized in that: The reminder component (4) comprises a pull-rope type displacement sensor (401) fixedly connected to one end of the air cylinder (307), a pull rope (402) being fixedly connected to a detection end of the pull-rope type displacement sensor (401), and the pull rope (402) being fixedly connected to a piston (309).

7. A multi-purpose adapter for a pressure gauge according to claim 6, characterized in that: A buzzer (403) is fixedly connected to the pull-rope type displacement sensor (401), and the pull-rope type displacement sensor (401) is electrically connected to the buzzer (403).

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