Micro differential pressure switch with external protection

Abstract

The utility model provides a micro differential pressure switch with external protection, which relates to the technical field of micro differential pressure switches and comprises a micro differential pressure switch body, a base is arranged at the bottom end of the micro differential pressure switch body, and a protection assembly is arranged at the upper ends of the micro differential pressure switch body and the base. The protection assembly comprises a supporting frame, an observation window, a clamping seat, a placement groove and a top groove, the supporting frame is arranged at the upper ends of the micro differential pressure switch body and the base, the observation window is arranged on the outer surface of the supporting frame, the clamping seat is connected to the bottom end of the supporting frame, and the placement groove is formed in the right side end of the supporting frame. The top of the micro-differential pressure switch body is protected through the protection assembly, the support strength of the observation window can be reinforced by using a keel frame structure in the support frame, and the support frame wraps the top of the micro-differential pressure switch body, so that the micro-differential pressure switch body is prevented from being damaged due to impact; therefore, the service life of the micro differential pressure switch body is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of differential pressure switch, especially to a differential pressure switch with external protection. BACKGROUND

[0002] Differential pressure switch is to use the pressure of gas to push micro switch, and the instrument that realizes the conversion between differential pressure signal and switch signal is differential pressure switch, differential pressure switch has two detection ports, namely positive pressure detection port and negative pressure detection port, and the cavity is divided into positive pressure cavity and negative pressure cavity, the two cavities are isolated by skin film, when there is pressure source, the skin film moves and touches micro switch to achieve the purpose of opening / closing, the differential pressure switch is provided with adjusting control disc, and the opening point and the closing point (ON point and OFF point) of the air pressure switch are changed by changing the spring pressure during adjusting.

[0003] The prior art differential pressure switch is easily affected by external factors such as dust and moisture, which may accelerate the aging and damage of the internal components, the existing differential pressure switch has weak protection strength, is directly designed as a transparent plastic structure, and is damaged once collision occurs, and the maintenance and replacement of components will become more difficult.

[0004] Therefore, the utility model provides a differential pressure switch with external protection. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of differential pressure switches with external protection to solve the shortcomings in prior art.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a differential pressure switch with external protection, including differential pressure switch body, the bottom end of the differential pressure switch body is provided with base, the upper end of the differential pressure switch body and base is provided with protection assembly;

[0007] The protection assembly includes support frame, observation window, clamping seat, installation slot and top groove, the upper end of the differential pressure switch body and base is provided with support frame, and the outer surface of support frame is provided with observation window, the bottom end of support frame is connected with clamping seat, the right side end of support frame is installed with installation slot, and the top end of support frame is provided with top groove.

[0008] The bottom end of the base is provided with threaded joint, and the bottom end of the threaded joint is installed with positioning assembly.

[0009] As a preferred embodiment, the support frame and the observation window are fixedly connected, and the support frame is connected with the clamping seat.

[0010] The technical effect of the further scheme is that the bottom end of the differential pressure switch body is provided with a base, the top of the differential pressure switch body is protected by the protection assembly, the support strength of the observation window can be reinforced by the keel frame structure inside the support frame, the support frame wraps the top of the differential pressure switch body, and damage of the differential pressure switch body caused by impact is avoided, thereby reducing the service life of the differential pressure switch body.

[0011] As a preferred embodiment, the installation groove is a reverse concave character structure.

[0012] The technical effect of the further scheme is that the support frame structure reduces the impact force of the impact object on the differential pressure switch body, the user clamps the seat of the support frame at the bottom of the base, the seat is made of PVC material and has a certain elastic stretching force, the right side of the support frame is provided with an installation groove, and the top end is provided with a top groove, which facilitates the leakage of the differential pressure switch body for later installation and use.

[0013] As a preferred embodiment, the positioning assembly includes a threaded pipe, a mounting frame, a positioning plate, and a bolt, the bottom end of the threaded joint is provided with a threaded pipe, the bottom end of the threaded pipe is provided with a mounting frame, the middle part of the mounting frame is inserted with a positioning plate, and the middle part of the positioning plate is provided with a bolt.

[0014] The technical effect of the further scheme is that the differential pressure switch body and the bottom end of the base are provided with a threaded joint, and the positioning assembly with a detachable structure is arranged at the bottom end of the base, so that the threaded pipe can be assembled by being screwed into the threaded joint.

[0015] As a preferred embodiment, the threaded pipe is detachably connected to the mounting frame and the positioning plate by the bolt, and the positioning plate is annularly distributed about the axis of the mounting frame.

[0016] The technical effect of the further scheme is that the bottom end of the threaded pipe is connected to the mounting frame, the positioning plate is arranged in the middle part of the mounting frame, and a strong external force is required to arrange and arrange the distribution angle of the positioning plate.

[0017] As a preferred embodiment, the threaded joint and the positioning assembly are threadedly connected.

[0018] The technical effect of the further scheme is that the bolt is arranged on the positioning plate and the mounting object for positioning and installation.

[0019] As a preferred embodiment, the threaded joint is connected to the base.

[0020] The technical effect of the further scheme is that the threaded joint and the positioning assembly can be quickly disassembled.

[0021] Compared with the prior art, the utility model has the advantages and positive effects that,

[0022] The bottom end of the differential pressure switch body is provided with a base, the top of the differential pressure switch body is protected by the protection assembly, the support strength of the observation window can be reinforced by the keel frame structure inside the support frame, the top of the differential pressure switch body is wrapped by the support frame, so that the differential pressure switch body is prevented from being damaged due to impact, thereby prolonging the service life of the differential pressure switch body, the impact force of the impact object on the differential pressure switch body is reduced by the support structure of the support frame, the user clamps the clamping seat of the support frame at the bottom of the base, the clamping seat is made of PVC material and has a certain elastic stretching force, the right side of the support frame is provided with a mounting groove, and the top end is provided with a top groove, so that the differential pressure switch body can be leaked out, and the differential pressure switch body can be installed and used later. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the differential pressure switch of the utility model;

[0024] Figure 2 It is a structure schematic view of the differential pressure switch of the utility model Figure 1 It is an enlarged structure view of A in the utility model;

[0025] Figure 3 It is an internal structure view of the differential pressure switch of the utility model;

[0026] Figure 4 It is a bottom structure view of the positioning assembly of the utility model.

[0027] 1, differential pressure switch body; 2, base; 3, protection assembly; 301, support frame; 302, observation window; 303, clamping seat; 304, mounting groove; 305, top groove; 4, threaded joint; 5, positioning assembly; 501, threaded pipe; 502, mounting frame; 503, positioning plate; 504, bolt. DETAILED DESCRIPTION

[0028] 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, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] EMBODIMENT

[0030] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the utility model provides a technical scheme: a differential pressure switch with external protection, including differential pressure switch body 1, the bottom of differential pressure switch body 1 is provided with base 2, and the upper end of differential pressure switch body 1 and base 2 is provided with protection assembly 3;

[0031] Protection assembly 3 includes support frame 301, observation window 302, clamping seat 303, installation groove 304 and top groove 305, the upper end of differential pressure switch body 1 and base 2 is provided with support frame 301, and the outer surface of support frame 301 is provided with observation window 302, the bottom of support frame 301 is connected with clamping seat 303, the right side end of support frame 301 is installed with installation groove 304, and the top end of support frame 301 is provided with top groove 305;

[0032] The bottom end of the base 2 is provided with a threaded joint 4; and the bottom end of the threaded joint 4 is installed with a positioning assembly 5, specifically, first, the bottom end of the micro differential pressure switch body 1 is provided with the base 2, the top of the micro differential pressure switch body 1 is protected by the protection assembly 3, the support strength of the observation window 302 can be reinforced by using the keel frame structure inside the support frame 301, the support frame 301 wraps the top of the micro differential pressure switch body 1, so as to avoid that the micro differential pressure switch body 1 is damaged due to impact, thereby reducing the service life of the micro differential pressure switch body 1, the impact force of the impacting object on the micro differential pressure switch body 1 is reduced by using the support structure of the support frame 301, the user clamps the clamping seat 303 of the support frame 301 on the bottom of the base 2, the clamping seat 303 is a PVC material structure and has a certain elastic stretching force, the right side of the support frame 301 is provided with a mounting groove 304, and the top end is provided with a top groove 305, so as to facilitate the micro differential pressure switch body 1 to be leaked out, so as to facilitate the installation and use of the micro differential pressure switch body 1 in the later period, the bottom end of the micro differential pressure switch body 1 is provided with a threaded joint 4, and the bottom end of the base 2 is provided with a detachable positioning assembly 5, so as to facilitate the threaded pipe 501 to be screwed on the threaded joint 4 for assembly, the bottom end of the threaded pipe 501 is connected with a mounting frame 502, the positioning plate 503 is arranged in the middle of the mounting frame 502, a relatively strong external force is required to arrange the distribution angle of the positioning plate 503, finally, the positioning plate 503 and the mounting object are positioned and installed by penetrating the bolts 504, by this technical scheme, the problems that the micro differential pressure switch is easily affected by external factors such as dust and humidity, which may accelerate the aging and damage of the internal components of the micro differential pressure switch, and the protection strength of the existing micro differential pressure switch is weak, and the micro differential pressure switch is directly designed as a transparent plastic structure and is damaged once collision occurs, and the maintenance and replacement of components become more difficult are solved, the bottom end of the micro differential pressure switch body 1 is provided with the base 2, the top of the micro differential pressure switch body 1 is protected by the protection assembly 3, the support strength of the observation window 302 can be reinforced by using the keel frame structure inside the support frame 301, the support frame 301 wraps the top of the micro differential pressure switch body 1, so as to avoid that the micro differential pressure switch body 1 is damaged due to impact, thereby reducing the service life of the micro differential pressure switch body 1, the impact force of the impacting object on the micro differential pressure switch body 1 is reduced by using the support structure of the support frame 301, the user clamps the clamping seat 303 of the support frame 301 on the bottom of the base 2, the clamping seat 303 is a PVC material structure and has a certain elastic stretching force, the right side of the support frame 301 is provided with a mounting groove 304, and the top end is provided with a top groove 305, so as to facilitate the micro differential pressure switch body 1 to be leaked out, so as to facilitate the installation and use of the micro differential pressure switch body 1 in the later period.

[0033] Further, Figures 1-2As shown in the figure: the bottom end of the threaded joint 4 is provided with a positioning assembly 5, and the threaded pipe 501 is provided with a mounting frame 502 at the bottom end, the positioning plate 503 is arranged in the middle of the mounting frame 502, and a strong external force is required to arrange the distribution angle of the positioning plate 503, and finally the positioning plate 503 and the mounting object are positioned and installed through the bolt 504.

[0034] The above scheme also has the problem that the installation mode of the differential pressure switch body 1 is not convenient to disassemble, such as Figure 1 、 Figure 3 and Figure 4 As shown in the figure: the positioning assembly 5 in the scheme includes a threaded pipe 501, a mounting frame 502, a positioning plate 503 and a bolt 504, the bottom end of the threaded joint 4 is provided with the threaded pipe 501, and the bottom end of the threaded pipe 501 is provided with the mounting frame 502, the middle of the mounting frame 502 is provided with the positioning plate 503, and the middle of the positioning plate 503 is provided with the bolt 504. The bottom end of the differential pressure switch body 1 and the base 2 is provided with a threaded joint 4, and the bottom end of the base 2 is provided with a detachable structure of the positioning assembly 5, so as to facilitate the threaded installation of the threaded pipe 501 in the threaded joint 4 for assembly.

[0035] Working principle:

[0036] As shown in the figure: Figures 1-4

[0037] ​First, the bottom end of the differential pressure switch body 1 is provided with a base 2, the top of the differential pressure switch body 1 is protected by the protection assembly 3, the support strength of the observation window 302 can be reinforced by using the keel frame structure inside the support frame 301, the support frame 301 wraps the top of the differential pressure switch body 1, so as to avoid that the differential pressure switch body 1 is damaged due to impact, thereby reducing the service life of the differential pressure switch body 1, the differential pressure switch body 1 is easily affected by external factors such as dust and moisture, which may accelerate the aging and damage of the internal components, the support frame 301 is provided with a support structure, the impact force of the impact object on the differential pressure switch body 1 is reduced, the user clamps the clamping seat 303 of the support frame 301 on the bottom of the base 2, the clamping seat 303 is made of PVC material and has a certain elastic stretching force, the right side of the support frame 301 is provided with a mounting groove 304, and the top end is provided with a top groove 305, so as to facilitate the leakage of the differential pressure switch body 1, so as to facilitate the installation and use of the differential pressure switch body 1 later, the differential pressure switch body 1 and the bottom end of the base 2 are provided with a threaded joint 4, the bottom end of the base 2 is provided with a detachable positioning assembly 5, the threaded pipe 501 is screwed on the threaded joint 4 for assembly, the bottom end of the threaded pipe 501 is connected with a mounting frame 502, the positioning plate 503 is arranged in the middle of the mounting frame 502, a strong external force is required to arrange the distribution angle of the positioning plate 503, finally, the bolts 504 are arranged on the positioning plate 503 and the mounting object for positioning and mounting.

[0038] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application still fall within the protection scope of the present application.

Claims

1. A differential pressure switch with external protection, comprising a differential pressure switch body (1), characterized in that: The bottom end of the differential pressure switch body (1) is provided with a base (2), and the upper end of the differential pressure switch body (1) and the base (2) is provided with a protection assembly (3); The protection assembly (3) comprises a support frame (301), an observation window (302), a clamping seat (303), a mounting groove (304) and a top groove (305), the upper end of the differential pressure switch body (1) and the base (2) is provided with the support frame (301), and the outer surface of the support frame (301) is provided with the observation window (302), the bottom end of the support frame (301) is connected with the clamping seat (303), the right side end of the support frame (301) is provided with the mounting groove (304), and the top end of the support frame (301) is provided with the top groove (305). The bottom end of the base (2) is provided with a threaded joint (4), and the bottom end of the threaded joint (4) is provided with a positioning assembly (5).

2. A differential pressure switch with external protection according to claim 1, characterized in that: The support frame (301) and the observation window (302) are fixedly connected, and the support frame (301) is connected with the clamping seat (303).

3. A differential pressure switch with external protection according to claim 1, characterized in that: The mounting groove (304) is a concave character structure.

4. A differential pressure switch with external protection according to claim 1, characterized in that: The positioning assembly (5) comprises a threaded pipe (501), a mounting frame (502), a positioning plate (503) and a bolt (504), the bottom end of the threaded joint (4) is provided with the threaded pipe (501), the bottom end of the threaded pipe (501) is provided with the mounting frame (502), the middle part of the mounting frame (502) is provided with the positioning plate (503), and the middle part of the positioning plate (503) is provided with the bolt (504).

5. A differential pressure switch with external protection according to claim 4, characterized in that: The threaded pipe (501) is detachably connected with the mounting frame (502) and the positioning plate (503) through the bolt (504), and the positioning plate (503) is annularly distributed about the axis of the mounting frame (502).

6. A differential pressure switch with external protection according to claim 1, characterized in that: The threaded joint (4) and the positioning assembly (5) are screw-connected.

7. A differential pressure switch with external protection according to claim 1, characterized in that: The threaded joint (4) is connected with the base (2).

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