Protective pressure transmitter

Abstract

The utility model relates to the technical field of pressure transmitters, in particular to a protective pressure transmitter, which comprises a pressure transmitter body, a butt joint port for line access is mounted on the outer surface of the pressure transmitter body, and a protective sleeve is in threaded connection with the outer surface of the butt joint port. And a mounting assembly for blocking dust and water vapor is arranged in the protective sleeve. According to the embodiment, a circuit needing to be connected penetrates through the rubber sleeve and the protective sleeve, the rubber sleeve tightens and restrains an electric wire and preliminarily blocks dust and water vapor, the electric wire penetrating through the protective sleeve penetrates through a wire hole formed in the blocking piece, and the blocking piece is installed in the protective sleeve through the sliding block; the protection sleeve is in threaded connection with the line butt joint port of the pressure transmitter body, so that the blocking sheet blocks water vapor and dust, the pressure transmitter body is protected, and the water vapor and the dust are prevented from entering the pressure transmitter body to erode the pressure transmitter body and damage the pressure transmitter body.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitters, and more specifically to a protective pressure transmitter. Background Art

[0002] A pressure transmitter is a device that converts pressure into pneumatic and electric signals for control and remote transmission. It can convert the physical pressure information of gas, liquid, etc. sensed by the pressure measuring element sensor into a standard electrical signal to supply indicator alarms, recorders, regulators and other equipment.

[0003] When the pressure transmitter is installed outdoors, it is necessary to use wires to connect the circuit interface to the internal circuit board of the pressure transmitter, power on the pressure transmitter, and transmit monitoring data. There will be gaps at the circuit interface, causing dust and water vapor in the air to enter the internal circuit board of the pressure transmitter through the interface, causing corrosion to the pressure transmitter and reducing its service life. The circuit interface of the pressure transmitter must be protected to prevent water vapor and dust from entering the interior of the pressure transmitter. A pressure transmitter that can protect the circuit interface of the pressure transmitter is needed.

[0004] In view of this, the utility model provides a protective pressure transmitter. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages and provide a protective pressure transmitter which can protect the circuit interface of the pressure transmitter.

[0006] Use barrier sheets and rubber sleeves to block dust and water vapor outside the pressure transmitter body to prevent water vapor and dust from corroding the pressure transmitter and accelerating damage to the pressure transmitter. At the same time, the fixed block, connecting rod and filter screen are used to filter the water flow at the water flow inlet of the pressure transmitter body and facilitate the cleaning of the filter screen.

[0007] Therefore, the utility model provides a protective pressure transmitter, including a pressure transmitter body, the outer surface of the pressure transmitter body is equipped with a docking port for line access, the outer surface of the docking port is threadedly connected with a protective sleeve, the interior of the protective sleeve is provided with a mounting component for blocking dust and water vapor, the interior of the pressure transmitter body is equipped with an access port for water flow docking, and the interior of the access port is equipped with a filtering component for filtering impurities in the water flow.

[0008] As a further improvement of the technical solution, a sliding groove is provided on the inner wall of the protective sleeve, and a rubber sleeve is installed on the side of the protective sleeve away from the docking port.

[0009] As a further improvement of the present technical solution, the installation assembly includes a barrier piece for blocking dust and water vapor, the outer surface of the barrier piece is provided with a wire hole for the wires to pass through, and the outer wall of the barrier piece is fixedly mounted with a slider that slides inside the slide groove.

[0010] As a further improvement of the present technical solution, the filter assembly includes a docking sleeve threadedly connected to the outer surface of the access port, a fixing block is fixedly installed inside the docking sleeve, a connecting rod is fixedly installed on the outer surface of the fixing block, and a filter screen for filtering impurities from the incoming water flow is fixedly installed at one end of the connecting rod.

[0011] As a further improvement of the present technical solution, a plurality of the fixing blocks and the connecting rods are provided, and the plurality of the fixing blocks and the connecting rods can fix the filter screen in connection, the docking sleeve is threadedly installed on the outer surface of the access port, and the filter screen is arranged inside the access port to filter the incoming water flow.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the protective pressure transmitter, when the wires are connected to the inside of the pressure transmitter body, first pass the circuit to be connected through the rubber sleeve and the protective sleeve. The rubber sleeve tightens the wires and preliminarily blocks dust and water vapor. After passing through the protective sleeve, the wires pass through the wire holes opened on the barrier sheet to limit the line and prevent the line from shaking. The slider on the barrier sheet is connected to the slide groove opened on the inner wall of the protective sleeve. The barrier sheet is installed inside the protective sleeve, and then the protective sleeve is threadedly connected to the line docking interface of the pressure transmitter body, so that the barrier sheet blocks water vapor and dust, protects the pressure transmitter body, and prevents water vapor and dust from entering the inside of the pressure transmitter body and corroding and damaging the pressure transmitter body.

[0014] 2. In the protective pressure transmitter, when the docking sleeve is threadedly connected to the outer surface of the water flow inlet, the filter screen will be inserted into the inside of the inlet so that the outer surface of the filter screen fits against the inner wall of the inlet. The pipe that needs to monitor the water flow pressure is docked and connected through the docking sleeve. The water flows into the filter screen in the docking inlet through the docking sleeve. The filter screen filters impurities from the flowing water to avoid blockage caused by accumulation of impurities in the inlet of the pressure transmitter body. The filter screen can be taken out by only unscrewing the docking sleeve, which is convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is described in more detail below by way of example with reference to the accompanying drawings, in which:

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

[0017] Figure 2 It is a cross-sectional schematic diagram of the installation assembly of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the filter assembly of the present utility model.

[0019] The meaning of each number in the figure is:

[0020] 1. Pressure transmitter body; 2. Docking port; 3. Protective cover; 31. Rubber cover; 4. Mounting assembly; 401. Barrier plate; 402. Wire hole; 403. Slider; 5. Access port; 6. Filter assembly; 601. Docking sleeve; 602. Fixing block; 603. Connecting rod; 604. Filter screen. DETAILED DESCRIPTION

[0021] When the pressure transmitter is installed outdoors, it is necessary to use wires to connect the circuit interface to the internal circuit board of the pressure transmitter, power on the pressure transmitter, and transmit monitoring data. There will be gaps at the circuit interface, causing dust and water vapor in the air to enter the internal circuit board of the pressure transmitter through the interface, causing corrosion to the pressure transmitter and reducing its service life. The circuit interface of the pressure transmitter must be protected to prevent water vapor and dust from entering the interior of the pressure transmitter. A pressure transmitter that can protect the circuit interface of the pressure transmitter is needed.

[0022] like Figure 1-2 As shown, the device includes a pressure transmitter body 1, the outer surface of the pressure transmitter body 1 is equipped with a docking port 2 for line access, the outer surface of the docking port 2 is threadedly connected with a protective sleeve 3, the interior of the protective sleeve 3 is provided with a mounting component 4 for blocking dust and water vapor, the interior of the pressure transmitter body 1 is equipped with an access port 5 for water flow docking, and the interior of the access port 5 is equipped with a filtering component 6 for filtering impurities in the water flow.

[0023] The internal line connection of the pressure transmitter body 1 is a prior art, and its working principle is common knowledge to those skilled in the art, and will not be described in detail here.

[0024] By installing a protective cover 3 on the line interface 2 of the pressure transmitter body 1, the barrier piece 401 installed in a close fit inside the protective cover 3 can block dust and water vapor, preventing water vapor and dust from entering the pressure transmitter body 1 and causing erosion damage. By installing a filter assembly 6 on the water inlet 5 of the pressure transmitter body 1, impurities in the water flowing into the pressure transmitter body 1 can be filtered, preventing impurities from accumulating and clogging the water inlet 5 and causing damage to the pressure transmitter body 1.

[0025] First, the specific structure of the mounting assembly 4 is disclosed. The mounting assembly 4 includes a barrier sheet 401 for blocking dust and water vapor. The outer surface of the barrier sheet 401 is provided with a wire hole 402 for the wire to pass through. The outer wall of the barrier sheet 401 is fixed with a slider 403 that slides inside the slide groove. The inner wall of the protective sleeve 3 is provided with a slide groove, and a rubber sleeve 31 is installed on the side of the protective sleeve 3 away from the docking port 2.

[0026] When the wires are connected to the inside of the pressure transmitter body 1, first pass the circuit to be connected through the rubber sleeve 31 and the protective sleeve 3. The rubber sleeve 31 tightens and binds the wires to preliminarily block dust and water vapor. After passing through the protective sleeve 3, the wires pass through the wire hole 402 opened on the barrier sheet 401 to limit the line and prevent the line from shaking. The slider 403 on the barrier sheet 401 is connected to the slide groove opened on the inner wall of the protective sleeve 3, the barrier sheet 401 is installed inside the protective sleeve 3, and then the protective sleeve 3 is threadedly connected to the line docking port 2 of the pressure transmitter body 1, so that the barrier sheet 401 blocks water vapor and dust, protects the pressure transmitter body 1, and prevents water vapor and dust from entering the inside of the pressure transmitter body 1 and corroding and damaging the pressure transmitter body 1.

[0027] The improvement of this embodiment is that: through the structure of the barrier sheet 401 and the rubber sleeve 31, the dust and water vapor outside the pressure transmitter body 1 are blocked, which solves the problem of water vapor and dust corroding the pressure transmitter and accelerating the damage of the pressure transmitter in the prior art.

[0028] When the pressure transmitter body 1 in the prior art is connected to the water flow inlet 5 for pressure monitoring, impurities in the water flow may cause blockage of the water flow inlet 5 of the pressure transmitter body 1. Figure 3 A second embodiment of the present utility model is shown.

[0029] The specific structure of the filter assembly 6 is disclosed again. The filter assembly 6 includes a docking sleeve 601 threadedly connected to the outer surface of the access port 5, a fixing block 602 is fixedly installed inside the docking sleeve 601, a connecting rod 603 is fixedly installed on the outer surface of the fixing block 602, and a filter screen 604 for filtering impurities from the inflowing water is fixedly installed at one end of the connecting rod 603.

[0030] There are multiple fixing blocks 602 and connecting rods 603, and the multiple fixing blocks 602 and connecting rods 603 can fix the filter screen 604. The docking sleeve 601 is threadedly installed on the outer surface of the access port 5, and the filter screen 604 is arranged inside the access port 5 to filter the incoming water.

[0031] The filter screen 604 can be installed on the outside of the docking sleeve 601 through the fixing block 602 and the connecting rod 603. When the docking sleeve 601 is threadedly connected to the outer surface of the water inlet 5, the filter screen 604 will be inserted into the inside of the inlet 5, so that the outer surface of the filter screen 604 fits on the inner wall of the inlet 5. The pipes that need to monitor the water flow pressure are docked and connected through the docking sleeve 601. The water flows into the filter screen 604 in the docking inlet 5 through the docking sleeve 601. The filter screen 604 filters impurities from the flowing water to avoid blockage caused by accumulation of impurities in the inlet 5 of the pressure transmitter body 1. The filter screen 604 can be taken out by only unscrewing the docking sleeve 601, which is convenient for cleaning the filter screen 604.

[0032] The improvement of this embodiment lies in that: through the structure of the fixed block 602, the connecting rod 603 and the filter screen 604, the water flow filtering of the water flow inlet 5 of the pressure transmitter body 1 is achieved and the filter screen 604 is convenient to clean, which solves the problem of easy accumulation of impurities and blockage of the water flow inlet 5 of the pressure transmitter in the prior art.

[0033] In summary, the working principle of this solution is as follows:

[0034] When the wires are connected to the inside of the pressure transmitter body 1, first pass the circuit to be connected through the rubber sleeve 31 and the protective sleeve 3. The rubber sleeve 31 tightens and binds the wires to preliminarily block dust and water vapor. After passing through the protective sleeve 3, the wires pass through the wire hole 402 opened on the barrier sheet 401 to limit the line and prevent the line from shaking. The slider 403 on the barrier sheet 401 is docked into the slide groove opened on the inner wall of the protective sleeve 3, and the barrier sheet 401 is installed inside the protective sleeve 3. Then the protective sleeve 3 is threadedly connected to the line docking port 2 of the pressure transmitter body 1, so that the barrier sheet 401 blocks water vapor and dust, protects the pressure transmitter body 1, and prevents water vapor and dust from entering the inside of the pressure transmitter body 1 and corroding and damaging the pressure transmitter body 1.

[0035] When the docking sleeve 601 is threadedly connected to the outer surface of the water inlet 5, the filter screen 604 will be inserted into the inside of the inlet 5, so that the outer surface of the filter screen 604 fits against the inner wall of the inlet 5, and the pipeline that needs to monitor the water flow pressure is docked and connected through the docking sleeve 601. The water flows into the filter screen 604 in the docking inlet 5 through the docking sleeve 601, and the filter screen 604 filters impurities from the flowing water to prevent the inlet 5 of the pressure transmitter body 1 from being blocked by impurities. In addition, you only need to unscrew the docking sleeve 601 to take out the filter screen 604, which is convenient for cleaning the filter screen 604.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A protective pressure transmitter, comprising a pressure transmitter body (1), characterized in that: The outer surface of the pressure transmitter body (1) is provided with a connection port (2) for line access, the outer surface of the connection port (2) is threadedly connected with a protective sleeve (3), the interior of the protective sleeve (3) is provided with a mounting assembly (4) for blocking dust and water vapor, the interior of the pressure transmitter body (1) is provided with an access port (5) for water flow connection, and the interior of the access port (5) is provided with a filtering assembly (6) for filtering impurities in the water flow.

2. The protective pressure transmitter according to claim 1, characterized in that: The inner wall of the protective sleeve (3) is provided with a sliding groove, and a rubber sleeve (31) is installed on the side of the protective sleeve (3) away from the docking port (2).

3. The protective pressure transmitter according to claim 1, characterized in that: The mounting assembly (4) comprises a barrier sheet (401) for blocking dust and water vapor, the outer surface of the barrier sheet (401) is provided with a wire hole (402) for the wire to pass through, and the outer wall of the barrier sheet (401) is fixedly mounted with a slider (403) that slides inside a slide groove.

4. The protective pressure transmitter according to claim 1, characterized in that: The filter assembly (6) comprises a docking sleeve (601) threadedly connected to the outer surface of the access port (5); a fixing block (602) is fixedly installed inside the docking sleeve (601); a connecting rod (603) is fixedly installed on the outer surface of the fixing block (602); and a filter screen (604) for filtering impurities from the inflowing water is fixedly installed at one end of the connecting rod (603).

5. The protective pressure transmitter according to claim 4, characterized in that: A plurality of the fixing blocks (602) and the connecting rods (603) are provided, and the plurality of the fixing blocks (602) and the connecting rods (603) can be used to fix the filter screen (604). The docking sleeve (601) is threadedly mounted on the outer surface of the access port (5), and the filter screen (604) is arranged inside the access port (5) to filter the inflowing water.

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