CN219286248U

CN219286248U - Pressure switch with protection device

Info

Publication number: CN219286248U
Application number: CN202320097741.0U
Authority: CN
Inventors: 晋学彬; 胡燕
Original assignee: Harbin Binrong Power Station Engineering Technology Development Co ltd
Current assignee: Harbin Binrong Power Station Engineering Technology Development Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-06-30
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a pressure switch with a protection device, which comprises a fixed box, wherein a top plate is arranged at the top end of the fixed box, an air inlet is formed in the top wall of the inside of the fixed box, an air outlet is formed in one side of the inner wall of the fixed box, a cooling fan is arranged at the top end of the inner side wall of the fixed box, a pressure switch body is arranged in the fixed box, filter screens are arranged at one ends, close to the air inlet and the air outlet, of the inside of the fixed box, fixed blocks are fixedly connected at two ends of the filter screens, fixed rods are fixedly connected at one ends, close to the fixed blocks, of the inside of the fixed box, the inside of the fixed rods is of a hollow structure, and sliding blocks are slidingly connected in the inside of the fixed rods. The utility model facilitates the clamping connection between the limiting slide rod and the inside of the fixed block in the pressure switch with the protection device through the mutual matching of the parts, and realizes the disassembly and replacement of the filter screen and the fixed block in the pressure switch with the protection device.

Description

Pressure switch with protection device

Technical Field

The utility model relates to the technical field of protection devices, in particular to a pressure switch with a protection device.

Background

The pressure switch adopts a high-precision and high-stability pressure sensor and a transmitting circuit, and realizes the detection, display, alarm and control signal output of medium pressure signals through a special CPU modularized signal processing technology. The elastic element adopted by the pressure switch comprises a single-ring spring tube, a diaphragm capsule, a corrugated tube and the like. The pressure sensor can be widely used for measuring and controlling the gauge pressure and absolute pressure of various gases and liquids in the fields of petroleum, chemical industry, metallurgy, electric power, water supply and the like, and is an ideal intelligent measuring and controlling instrument in an industrial field.

The present pressure switch with protection device, as described in patent publication No. CN215299111U, comprises: the pressure switch comprises a pressure switch body, a connecting rod positioned below the pressure switch body, a box body arranged outside the pressure switch body, a box door rotationally connected with the box body, avoidance holes arranged at the bottom of the box body and matched with the connecting rod, and supporting mechanisms symmetrically arranged at two sides of the avoidance holes and fixedly connected with the bottom of the box body, wherein each supporting mechanism comprises a supporting rod fixedly connected with the bottom wall of the box body, a left semi-ring arranged below the supporting rod and fixedly connected with the supporting rod, and a right semi-ring matched with the left semi-ring, the pressure switch body is arranged on a pipeline through the connecting rod, the left semi-ring and the right semi-ring are respectively fixed at two sides of the pipeline, and the upper part and the lower part of the left semi-ring and the right semi-ring are respectively fixedly connected through bolts. The utility model can prevent other people from misoperation and prevent dust from entering the box body to damage the pressure switch body.

To the above-mentioned related art, the applicant thinks that a pressure switch with protection device during operation passes through the cooperation of thermovent with dustproof filter screen, realizes ventilation and heat dissipation and dust's filtration, and dustproof filter screen can pile up the dust in long-term use inside, and dustproof filter screen fixes in thermovent department, and when dust piles up not dismantling, not only influences ventilation and heat dissipation's efficiency, can lose dustproof filter screen and use the meaning yet.

Disclosure of Invention

The utility model aims to provide a pressure switch with a protection device, which solves the problems that in the prior art, the device is matched with a dustproof filter screen through a heat dissipation port to realize ventilation and heat dissipation and dust filtration, the dustproof filter screen can accumulate dust in the dustproof filter screen in long-term use, the dustproof filter screen is fixed at the heat dissipation port, and when the dust accumulation is not dismounted, the efficiency of ventilation and heat dissipation is affected, and the using meaning of the dustproof filter screen is lost.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pressure switch with protection device, includes the fixed box, the roof is installed on the top of fixed box, the air intake has been seted up to the roof of fixed box inside, the air outlet has been seted up to one side of fixed box inner wall, radiator fan is installed on the top of fixed box inside wall, the inside of fixed box is provided with the pressure switch body, the fixed box is inside to be close to the one end of air intake and air outlet all to be provided with the filter screen, the equal fixedly connected with fixed block in both ends of filter screen, the fixed box is inside to be close to the equal fixedly connected with dead lever of one end of fixed block, the inside of dead lever is hollow structure, the inside sliding connection of dead lever has the slider, the sliding chute that supplies in the slider is seted up to the inside wall of dead lever, one side fixedly connected with spacing slide bar of dead lever inner wall is seted up and is supplied in spacing slide bar gliding spread groove, the inside of fixed block has been seted up and has been supplied in spacing slide bar grafting groove, the inside of dead lever is provided with the spring.

Through adopting above-mentioned technical scheme, can realize dismantling and changing the filter screen.

Preferably, a welding structure integration is formed between the top plate and the fixed box.

Through adopting above-mentioned technical scheme, can improve the stability that fixed case and roof are connected.

Preferably, the outer side wall of the fixed box is hinged with a box door, and the outer side wall of the box door is fixedly connected with a handle.

Through adopting above-mentioned technical scheme, be convenient for dismantle the filter screen of the inside of fixed case.

Preferably, one side fixedly connected with fixed plate that the fixed box inside wall is close to radiator fan, the intermediate position at fixed plate top is provided with the drying box, a plurality of groups bleeder vent have been seted up to the inside wall of drying box, a plurality of groups ventilation hole have been seted up to the inside of fixed plate, the inside of drying box is provided with the drier bag.

By adopting the technical scheme, the drying treatment of the air blown out by the cooling fan can be realized.

Preferably, the through hole has been seted up to the diapire inside the dry box, the equal fixedly connected with joint ball in both ends at dry box top, the recess of supplying in joint ball grafting is seted up to the intermediate position of fixed plate lateral wall, the equal fixedly connected with joint piece in both sides of recess inner wall, mutual joint between joint piece and the joint ball.

By adopting the technical scheme, the desiccant bag can be replaced.

Preferably, the clamping blocks and the clamping balls are made of plastic materials.

Through adopting above-mentioned technical scheme, can fix the joint ball through the plastic deformation between joint piece and the joint ball.

Preferably, one end of the spring is fixedly connected with the inner side wall of the fixed rod, and the other end of the spring is fixedly connected with the outer side wall of the sliding block.

Through adopting above-mentioned technical scheme, can realize the fixed to the spring.

Compared with the prior art, the utility model has the beneficial effects that:

firstly, through the mutual matching among the parts, the clamping connection between the limiting slide rod and the inside of the fixed block in the pressure switch with the protection device is facilitated, and the disassembly and replacement of the filter screen and the fixed block in the pressure switch with the protection device are realized; secondly, through the arrangement of the fixing plate, the drying box, the ventilation hole and the drying agent bag, the drying treatment of the drying agent bag in the pressure switch with the protection device on the vapor in the air blown by the cooling fan is realized through the mutual matching of the parts, the drying performance of the pressure switch with the protection device is improved, and the service life of the device is prolonged; finally, through being provided with joint ball, joint piece, through-hole and recess, through the cooperation between the part, made things convenient for the joint of joint ball and joint piece in this kind of pressure switch with protection device, realized the timely change of this kind of pressure switch with protection device's interior drier bag, improved this kind of pressure switch with protection device's suitability.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic view of the external structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 4 is a schematic diagram of a connection structure between a clamping ball and a clamping block according to the present utility model.

In the figure: 1. a fixed box; 2. a top plate; 3. an air inlet; 4. a filter screen; 5. a fixed rod; 6. a heat radiation fan; 7. a pressure switch body; 8. an air outlet; 9. a fixing plate; 10. a door; 11. a drying box; 12. a desiccant bag; 13. a clamping ball; 14. a vent hole; 15. a clamping block; 16. a groove; 17. a through hole; 18. a limit slide bar; 19. a chute; 20. a slide block; 21. a spring; 22. and a fixed block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is described in further detail below with reference to fig. 1-4.

Referring to fig. 1 and 2, an embodiment of the present utility model is provided: the utility model provides a pressure switch with protection device, including fixed case 1, roof 2 is installed on the top of fixed case 1, constitute welded structure integration between roof 2 and the fixed case 1, the lateral wall of fixed case 1 articulates there is chamber door 10, the lateral wall fixedly connected with handle of chamber door 10, air intake 3 has been seted up to the roof of fixed case 1 inside, air outlet 8 has been seted up to one side of fixed case 1 inner wall, radiator fan 6 is installed on the top of fixed case 1 inside wall, the inside of fixed case 1 is provided with pressure switch body 7, adjusting button is installed to pressure switch body's one end, through opening chamber door 10, rotatory adjusting button, the realization is to switch body 7's operation, fixed case 1 is inside to be close to air intake 3 and air outlet 8's one end all is provided with filter screen 4, the equal fixedly connected with fixed block 22 in both ends of filter screen 4, when the high temperature of pressure switch body 7 needs to dispel the heat, external power supply starts radiator fan 6, the rotation through radiator fan 6 realizes carrying out the inside of fixed case 1 with external air, and when air entering fixed case 1 inside, filter through 4 in the dust in the air, and filter out the air vent 7, and the air outlet is effective when the inside is carried out the filter body through the filter 7, and air vent 7, the air outlet is carried out the inside through the filter switch body after the filter 7, and the air vent is effective when the air vent is used to the air vent is fixed.

In fig. 1 and 3, one end of the fixing box 1, which is close to the fixing block 22, is fixedly connected with a fixing rod 5, the inside of the fixing rod 5 is of a hollow structure, a sliding block 20 is slidably connected in the inside of the fixing rod 5, a sliding groove 19 which is supplied to the sliding block 20 in a sliding manner is formed in the inner side wall of the fixing rod 5, a limit sliding rod 18 is fixedly connected to one side of the outer wall of the sliding block 20, a sliding groove which is supplied to the limit sliding rod 18 in a sliding manner is formed in one side of the inner wall of the fixing rod 5, a splicing groove which is supplied to the limit sliding rod 18 in a splicing manner is formed in the inside of the fixing block 22, a spring 21 is arranged in the inside of the fixing rod 5, one end of the spring 21 is fixedly connected with the inner side wall of the fixing rod 5, the other end of the spring 21 is fixedly connected with the outer side wall of the sliding block 20, when the filter screen 4 is replaced, the limit sliding rod 18 is pulled to one end of the fixing rod 5 manually, the limiting slide bar 18 drives the slide block 20 to slide in the sliding groove 19, the spring 21 is stretched through the displacement of the slide block 20, and the limiting slide bar 18 synchronously moves at one end in the fixed block 22 through the displacement of the limiting slide bar 18 until one end of the limiting slide bar 18 completely leaves the inside of the fixed block 22, further the limiting removal of the fixed block 22 is realized, then the filter screen 4 is manually pushed forwards or backwards until one end of the filter screen 4 and the limiting slide bar 18 are not in the same horizontal line, namely, the filter screen 4 can be pulled downwards, the disassembly of the filter screen 4 is realized, the filter screen 4 is convenient to be replaced in time after being blocked by dust, the ventilation efficiency in the fixed box 1 is influenced, the occurrence of an event that the heat dissipation effect of the pressure switch body 7 is reduced is caused, and the disassembly of the filter screen 4 can be realized through the displacement of the limiting slide bar 18, the practicality of the whole device in dismantling the filter screen 4 is improved.

Referring to fig. 1 and 4, a fixing plate 9 is fixedly connected to one side of the inner side wall of the fixing box 1, which is close to the cooling fan 6, a drying box 11 is arranged in the middle of the top of the fixing plate 9, a plurality of groups of ventilation holes are formed in the inner side wall of the drying box 11, a plurality of groups of ventilation holes 14 are formed in the inner side of the fixing plate 9, a drying agent bag 12 is arranged in the drying box 11, when the air blown by the cooling fan 6 is subjected to drying treatment, the air firstly enters the inner side of the drying box 11 through the ventilation holes in the outer side wall of the drying box 11 after being blown by the filtered air direction fixing box 1, the air entering the drying box 11 is dried through the drying agent bag 12, and the air after being dried is discharged again through the ventilation holes in the drying box 11, and is discharged to the outer surface of the pressure switch body 7 through the ventilation holes 14 in the fixing plate 9, so that the drying treatment of the air vapor is realized while the air vapor is radiated to the pressure switch body 7, the long-time accumulation of the inside the fixing box 1 is avoided, the service life of the pressure switch body 7 is influenced, and the safety of the air is improved when the air is used.

Referring to fig. 1 and 4, the bottom wall inside the drying box 11 is provided with a through hole 17, two ends of the top of the drying box 11 are fixedly connected with a clamping ball 13, a groove 16 which is inserted into the clamping ball 13 is formed in the middle of the outer side wall of the fixing plate 9, two sides of the inner wall of the groove 16 are fixedly connected with clamping blocks 15, the clamping blocks 15 and the clamping ball 13 are mutually clamped, the clamping blocks 15 and the clamping ball 13 are made of plastic materials, when the drying box 12 is replaced, a handle on the outer surface of the box door 10 is manually pulled, after the inside of the fixing box 1 is opened, the drying box 11 is manually pulled upwards, the clamping ball 13 is synchronously driven to move upwards through the upward movement of the drying box 11, and the clamping ball 13 is made to move through plastic deformation between the clamping ball 13 and the clamping block 15 while the inside of the groove 16, the movement of the clamping ball 13 is completed until the clamping ball 13 is completely pulled out of the inside of the groove 16, the drying box 12 is manually taken out from the inside of the drying box 11 through the through hole 17, a new drying box 12 is replaced through the through hole 17, and the drying box 12 is replaced in time, and the service life of the drying box 12 is guaranteed.

Working principle: firstly, when the temperature of the pressure switch body 7 is too high and heat dissipation is required, the external power supply starts the heat dissipation fan 6, external air is enabled to pass through the air inlet 3 to be fixed in the box 1 through rotation of the heat dissipation fan 6, dust in the air is filtered through the filter screen 4 while the air enters the interior of the fixed box 1, the outer surface of the pressure switch body 7 is effectively dissipated through the filtered air, the heat dissipation efficiency of the pressure switch body 7 in use is improved, and the air in the fixed box 1 is discharged again through the air outlet 8;

secondly, when changing filter screen 4, manually, the spacing slide bar 18 is pulled to the one end of dead lever 5, make spacing slide bar 18 drive slider 20 slide in the inside of spout 19, and through the displacement of slider 20, stretch spring 21, and through the displacement of spacing slide bar 18, make spacing slide bar 18 remove in step at the inside one end of dead lever 22, until the one end of spacing slide bar 18 leaves the inside of dead lever 22 completely, and then realize the release spacing to dead lever 22, then manually promote filter screen 4 forward or backward, until one end of filter screen 4 and spacing slide bar 18 are not in same horizontal line, can pull down, realize the dismantlement to filter screen 4, in time change after being stopped up by the dust in the filter screen 4, influence the ventilation efficiency in the inside of fixed box 1, the event emergence that the radiating effect of pressure switch body 7 reduces is led to, and then through the displacement to spacing slide bar 18 can realize the dismantlement to filter screen 4, the practicality of whole device at the dismantlement to filter screen 4 has been improved.

Then, when the air blown out by the cooling fan 6 is dried, after the bottom end of the inside of the filtered air direction fixing box 1 is blown off, the air firstly enters the inside of the drying box 11 through the air holes on the outer side wall of the drying box 11, the air entering the inside of the drying box 11 is dried through the drying agent bag 12, the air after the drying treatment is discharged again through the air holes inside the drying box 11, and is discharged to the outer surface of the pressure switch body 7 through the air holes 14 inside the fixing plate 9, so that the cooling of the pressure switch body 7 is realized, the drying treatment of water vapor in the air is realized, the long-time accumulation of the water vapor in the air in the inside of the fixing box 1 is avoided, the service life of the pressure switch body 7 is influenced, and the safety of the pressure switch body 7 in use is improved through the drying treatment of the water vapor in the air.

Finally, when the desiccant bag 12 is replaced, the handle on the outer surface of the box door 10 is manually pulled, after the inside of the fixed box 1 is opened, the drying box 11 is manually pulled upwards, through the upward movement of the drying box 11, the clamping ball 13 is synchronously driven to move upwards, the clamping ball 13 moves in the groove 16, and meanwhile, the movement of the clamping ball 13 is completed through the plastic deformation between the clamping ball 13 and the clamping block 15 until the clamping ball 13 is completely pulled out of the groove 16, the desiccant bag 12 is manually taken out from the inside of the drying box 11 through the through hole 17, a new desiccant bag 12 is put into the inside of the drying box 11 through the through hole 17 again, the replacement of the desiccant bag 12 is completed, and then after the service life of the desiccant bag 12 is finished, the replacement is timely carried out, so that the drying treatment effect of the desiccant bag 12 on air is effectively ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Pressure switch with protection device, including fixed case (1), its characterized in that: the top of the fixed box (1) is provided with a top plate (2), the top wall inside the fixed box (1) is provided with an air inlet (3), one side of the inner wall of the fixed box (1) is provided with an air outlet (8), the top of the inner side wall of the fixed box (1) is provided with a cooling fan (6), the inside of the fixed box (1) is provided with a pressure switch body (7), one end, close to the air inlet (3) and the air outlet (8), inside the fixed box (1) is provided with a filter screen (4), two ends of the filter screen (4) are fixedly connected with fixed blocks (22), one end, close to the fixed blocks (22), inside the fixed box (1) is fixedly connected with a fixed rod (5), the inside of the fixed rod (5) is of a hollow structure, the inside of the fixed rod (5) is connected with a sliding block (20), the inner side wall of the fixed rod (5) is provided with a sliding chute (19) which is provided with a sliding, one side of the outer wall of the sliding block (20) is fixedly connected with a limit sliding rod (18), one side of the inner wall of the fixed rod (5) is provided with a limit plug-in groove (18) which is provided with a limit plug-in groove (18), a spring (21) is arranged in the fixing rod (5).

2. A pressure switch with protection device according to claim 1, characterized in that: and a welding structure integration is formed between the top plate (2) and the fixed box (1).

3. A pressure switch with protection device according to claim 1, characterized in that: the outer side wall of the fixed box (1) is hinged with a box door (10), and the outer side wall of the box door (10) is fixedly connected with a handle.

4. A pressure switch with protection device according to claim 1, characterized in that: one side fixedly connected with fixed plate (9) that fixed box (1) inside wall is close to radiator fan (6), the intermediate position at fixed plate (9) top is provided with drying box (11), a plurality of groups bleeder vent have been seted up to the inside wall of drying box (11), a plurality of groups ventilation hole (14) have been seted up to the inside of fixed plate (9), the inside of drying box (11) is provided with drier bag (12).

5. A pressure switch with protection device according to claim 4, characterized in that: through-hole (17) have been seted up to the diapire of dry box (11) inside, all fixedly connected with joint ball (13) at the both ends at dry box (11) top, recess (16) of supplying in joint ball (13) grafting are seted up to the intermediate position of fixed plate (9) lateral wall, the both sides of recess (16) inner wall are all fixedly connected with joint piece (15), mutual joint between joint piece (15) and joint ball (13).

6. A pressure switch with protection device according to claim 5, characterized in that: the clamping blocks (15) and the clamping balls (13) are made of plastic materials.

7. A pressure switch with protection device according to claim 1, characterized in that: one end of the spring (21) is fixedly connected with the inner side wall of the fixed rod (5), and the other end of the spring (21) is fixedly connected with the outer side wall of the sliding block (20).