CN218776830U

CN218776830U - Maintenance box

Info

Publication number: CN218776830U
Application number: CN202223000033.5U
Authority: CN
Inventors: 陈国庆; 车光文
Original assignee: Ningbo Wanqian New Building Materials Co ltd
Current assignee: Ningbo Wanqian New Building Materials Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-31
Anticipated expiration: 2032-11-09

Abstract

The utility model relates to a curing box, relate to the field of curing equipment technique, it includes the box and sets up the mouth of placing in box one end, it is connected with sealing door to rotate on the box, sealing door has closed station and open station, when sealing door is in closed station, sealing door covers places the mouth, when sealing door is in open station, place mouth and external intercommunication, be provided with pressure sensor on the box, pressure sensor's probe can with be in the sealing door butt of closed station, pressure sensor's output is connected in control circuit, control circuit's output is connected with suggestion device, suggestion device sets up on the box, when the magnitude of voltage of predetermineeing the reference signal is greater than the magnitude of voltage of pressure sensor output pressure signal and surpasss and predetermine when fixed time length, suggestion device output cue signal. This application has the effect that reduces sealing door and forgets the closure and lead to the not good condition of maintenance environment to take place in the curing box.

Description

Maintenance box

Technical Field

The application relates to the field of maintenance equipment technology, especially, relate to a maintenance box.

Background

The curing box is a curing device for concrete or cement and the like, and is mainly suitable for curing samples of products such as concrete or cement in the building industry and related scientific research quality inspection departments so as to detect whether the quality of the concrete or the cement and the like reaches the normal standard.

In the related art, when concrete or cement is cured, a standard curing environment is set, the formed cement or concrete test block is placed in a curing box, and then an opening of the curing box is sealed by a sealing door on the curing box, so as to keep the environment in the curing box stable.

In view of the above-mentioned related art, the inventor thinks that after the staff puts the test block into the curing box, the condition of forgetting to close the sealing door may appear, and at this moment, if the staff can not realize the opening and closing condition of the sealing door in time, the curing environment in the curing box will be poor.

SUMMERY OF THE UTILITY MODEL

The maintenance box is provided in the application in order to reduce the sealed door and forget to close and lead to the not good condition of maintenance environment in the maintenance box to take place.

The application provides a maintenance case adopts following technical scheme:

the utility model provides a curing box, includes the box and sets up the mouth of placing in box one end, it is connected with sealing door to rotate on the box, sealing door has closed station and open station, works as when sealing door is in closed station, sealing door covers places the mouth, works as sealing door is in when opening the station, place mouth and external intercommunication, be provided with pressure sensor on the box, pressure sensor's probe can with be in the sealing door butt of closed station, pressure sensor's output is connected in control circuit, control circuit's output is connected with suggestion device, the suggestion device sets up on the box, and when the magnitude of voltage of predetermineeing reference signal is greater than the magnitude of voltage of pressure sensor output pressure signal and surpasss and predetermine when fixed length, suggestion device output prompt signal.

Through adopting above-mentioned technical scheme, after the staff switched the sealing door to open the station by sealing the station, control circuit began the timing, when reaching and predetermine fixed time length, if the sealing door still is in the open mode, the suggestion device can send prompt signal in order to remind the staff in time to close the sealing door to reduce the sealing door and forget the closure and lead to curing box in the not good condition of maintenance environment to take place.

Optionally, a placing groove is formed in the end face, abutted against the sealing door, of the edge of the placing opening, a protection pad is arranged in the placing groove in the circumferential direction, and the pressure sensor is arranged in the placing groove and sleeved on the outer side wall of the pressure sensor through the protection pad.

Through adopting above-mentioned technical scheme, the setting up of protection pad has reduced pressure sensor because of the condition that appears wearing and tearing with standing groove lateral wall friction in the use, has improved the security of pressure sensor in the use.

Optionally, the box body is rotatably connected with a fixing rod, the sealing door is fixedly connected with a hanging ring, and when the sealing door is located at an open station, the fixing rod can be clamped with the hanging ring.

Through adopting above-mentioned technical scheme, when the sealing door was opened, dead lever and link joint were in open station so that the sealing door can be comparatively steadily to be convenient for the staff takes or places cement or concrete test block.

Optionally, an accommodating groove for accommodating the fixing rod is formed in the end face of the box body, where the placing groove is formed, and the fixing rod is rotatably connected to the side wall of the accommodating groove.

Through adopting above-mentioned technical scheme, when sealing door need be closed, rotatable dead lever is in order to place the dead lever in accomodating the inslot to make sealing door can normally close.

Optionally, the side wall of the accommodating groove is fixedly connected with an elastic lug capable of clamping the side wall of the fixing rod.

Through adopting above-mentioned technical scheme, when the dead lever rotated to accomodating the inslot, the fixed block can the butt on elastic convex block, continues the extrusion dead lever this moment to make elastic convex block take place deformation, thereby make the dead lever can continue to remove, when the dead lever was in accomodating the inslot completely, the dead lever was fixed in to accomodating the inslot to the extrusion force of going towards the dead lever on the elastic convex block, has reduced the dead lever and has fallen out the condition of accomodating the groove and take place.

Optionally, an insertion groove for inserting the elastic projection is formed in the side wall of the fixing rod, and when the fixing rod is completely located in the accommodating groove, the elastic projection is inserted into the insertion groove.

Through adopting above-mentioned technical scheme, when the dead lever was in when accomodating the inslot completely, the elasticity lug can peg graft in the inserting groove to the realization is to the further fixed of dead lever, has further reduced the dead lever and has fallen out the condition emergence of accomodating the groove.

Optionally, the control circuit includes:

the comparison unit is connected with the pressure sensor and used for receiving the pressure signal and outputting an excitation signal when the voltage value of the pressure signal is smaller than the voltage value of a preset reference signal;

the time delay unit is connected with the comparison unit and used for receiving the driving signal and outputting the driving signal after the driving signal is received and preset fixed time;

and the prompting unit is connected with the delay unit and the prompting device and used for receiving the driving signal, and when the driving signal is received, the prompting device is electrified to send out a prompting signal.

By adopting the technical scheme, when the sealing door is positioned at an opening station, the pressure sensor outputs the pressure signal at the moment, the pressure signal is received by the comparison unit and is compared with the preset reference signal, the excitation signal is output, when the delay unit receives the excitation signal and outputs the driving signal after the preset fixed time length, the driving signal controls the prompting unit to be electrified, and at the moment, the prompting device sends the prompting signal to prompt a worker.

Optionally, the comparing unit includes:

the reference voltage generating circuit comprises a first resistor and a second resistor, wherein one end of the first resistor is connected to a first direct current power supply, and the other end of the first resistor is connected with the second resistor in series and then is grounded; wherein a reference signal is generated between the first resistor and the second resistor;

the comparator is provided with a same-phase input end, an opposite-phase input end and an output end, the same-direction input end of the comparator is connected with the reference voltage generating circuit, the opposite-direction input end of the comparator is connected with the output end of the pressure sensor, and the output end of the comparator A outputs an excitation signal.

By adopting the technical scheme, the pressure signal is input to the reverse input end of the comparator through the output end of the pressure sensor and is compared with the reference signal, and if the voltage value of the pressure signal is smaller than that of the reference signal, the output end of the comparator can output the excitation signal to enable the delay unit to operate.

Optionally, the delay unit includes:

an NPN triode Q, the base electrode of which is connected with the output end of the comparator A, the emitter electrode of which is connected with one end of a third resistor R3, and the other end of the third resistor is grounded; the collecting electrode is connected with delay relay KT one end, and the delay relay KT other end is connected with second DC power supply V2's output.

By adopting the technical scheme, the excitation signal is transmitted to the base electrode, the NPN triode is conducted, the time delay relay starts to time, and the time delay unit outputs the driving signal after the preset fixed time length.

Optionally, the prompting unit includes:

and the time-delay closed normally-open switch S is connected with the time-delay relay KT, and the third direct-current power supply V3 is connected with the time-delay closed normally-open switch S, the prompting device (5) and the fourth resistor R4 in series and then is grounded.

By adopting the technical scheme, the normally open switch is closed under the control of the drive signal, so that the prompting device is electrified to send out a prompting signal to prompt a worker to close the sealing door in time.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the prompt signal sent by the prompt device can enable the worker to timely realize the opening and closing state of the sealing door, so that the situation that the maintenance environment in the maintenance box is poor due to the fact that the worker forgets to close the sealing door is reduced;

2. the setting of dead lever and link has improved the stability of sealing door when opening the station.

Drawings

FIG. 1 is a schematic structural view of a curing box according to an embodiment of the present application;

FIG. 2 is an exploded view of the curing box of an embodiment of the present application;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

fig. 5 is a circuit diagram of a control circuit according to an embodiment of the present application.

Description of reference numerals: 1. a box body; 2. a placement port; 3. a sealing door; 4. a pressure sensor; 5. a prompting device; 6. a placement groove; 7. a protection pad; 8. fixing the rod; 801. a rotating part; 802. a clamping part; 9. hanging a ring; 10. a receiving groove; 11. an elastic bump; 12. inserting grooves; 13. a comparison unit; 14. a delay unit; 15. a presentation unit; r1, a first resistor; r2, a second resistor; r3 a third resistor; r4, a fourth resistor; v1, a first direct current power supply; v2, a second direct current power supply; v3, and a third direct current power supply.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a curing box. Referring to fig. 1, the curing box includes box 1, sealing door 3 and set up in the mouth of placing 2 of box 1 one end, box 1 is the device that carries out maintenance processing to cement or concrete test block, it is the opening of curing box to place mouth 2, sealing door 3 rotates and connects on box 1, sealing door 3 has closed station and open station, when sealing door 3 is in open station, place a mouthful 2 and external intercommunication, for the object is placed in the curing box, when sealing door 3 is in closed station, sealing door 3 covers and places a mouthful 2, so that the maintenance environment in the curing box is comparatively stable, this is prior art and is not the innovation point of this application here, do not describe repeatedly.

Place 2 edges on the box 1 and be connected with pressure sensor 4, when sealing door 3 was in the closed station, pressure sensor 4's probe and sealing door 3 butt so that pressure sensor 4 can read the extrusion force numerical value that corresponds. The outer side wall of the box body 1 is fixedly connected with a prompting device 5, the prompting device 5 is a loudspeaker in some examples, the prompting device 5 is an indicator lamp in some examples, and the prompting device 5 is used as the loudspeaker in the embodiment for description. The output end of the pressure sensor 4 is connected with a control circuit through an electric wire, the output end of the control circuit is connected with the prompting device 5 through an electric wire, the control circuit is arranged on the circuit board, the circuit board is arranged in the box body 1, and a button cell is further arranged in the box body 1 to supply power to the circuit board. After the staff opened sealing door 3, control circuit began the timing, after predetermineeing fixed length of time, if sealing door 3 still is in the open mode, loudspeaker can send to pipe to be in open station this moment in order to remind staff sealing door 3, need in time close sealing door 3 to reduce sealing door 3 and forget the closure and the not good condition of maintenance environment in the maintenance box appears.

Referring to fig. 2 and 3, in order to improve the stability of the pressure sensor 4 in the using process, a placing groove 6 is formed in the end face of the edge of the placing opening 2, which is abutted to the sealing door 3, the pressure sensor 4 is placed in the placing groove 6, and the probe of the pressure sensor 4 extends out of the opening of the placing groove 6. There is protection pad 7 to circumferential glue connection in standing groove 6, and protection pad 7 has certain elasticity, and protection pad 7's lateral wall and 6 inside wall butts of standing groove, protection pad 7 cover locate pressure sensor 4's lateral wall. When installing pressure sensor 4, the staff accessible is to pressure sensor 4 application of force to make protection pad 7 receive pressure sensor 4's extrusion force and warp, thereby make pressure sensor 4 normally peg graft to standing groove 6 in, realize pressure sensor 4 stability in standing groove 6, reduced pressure sensor 4 in the use because of with the 6 lateral wall friction condition that wearing and tearing appear of standing groove, so that pressure sensor 4 is difficult for appearing damaging, thereby improved the stability of pressure sensor 4 in the use.

Referring to fig. 3 and 4, in order to make sealing door 3 (refer to fig. 1) comparatively stable when opening the station, place and seted up on 2 edges of placing port and accomodate groove 10 on the terminal surface of seting up standing groove 6, it is connected with dead lever 8 to rotate through the universal joint on the lateral wall of accomodating groove 10, dead lever 8 includes rotating part 801 and joint portion 802, rotating part 801 sets up on one end of rotating part 801 length direction with joint portion 802 integrated into one piece and joint portion 802's one end, the one end of keeping away from joint portion 802 on rotating part 801 rotates and connects on the lateral wall of accomodating groove 10, dead lever 8 accessible rotates and places completely in accomodating groove 10, the welding has the link 9 that can with joint portion 802 joint on sealing door 3, be provided with the recess that supplies link 9 to peg graft on the terminal surface of seting up standing groove 6 at placing port 2 edges. After the sealing door 3 is opened, a worker can rotate the fixing rod 8 out of the accommodating groove 10 to clamp the clamping portion 802 with the hanging ring 9, so that the sealing door 3 can be stably positioned at an opening station, and the worker can conveniently place or take a test article; when sealing door 3 need be closed, the staff can rotate dead lever 8 to rotate joint portion 802 in link 9 out, and the staff can rotate dead lever 8 and place in holding groove 10 this moment, so that the staff closes sealing door 3 and handles.

In order to reduce the occurrence of the falling-out of the fixing rod 8 in the accommodating groove 10, the elastic bumps 11 are connected to the two opposite side walls of the accommodating groove 10 in a soaking and melting manner, the elastic bumps 11 have a certain deformation capability, the rotating portion 801 is provided with the insertion groove 12 for the insertion of the elastic bumps 11, and when the fixing rod 8 is completely positioned in the accommodating groove 10, the elastic bumps 11 are inserted into the insertion groove 12. When needs are closed sealing door 3, the rotatable dead lever 8 of staff is so that dead lever 8 removes to accomodating 10 directions in the groove, when dead lever 8 removes behind the certain distance with 11 butts of elastic convex block, continue to extrude dead lever 8 so that elastic convex block 11 takes place deformation, make dead lever 8 can accomodate completely in standing groove 6, inserting groove 12 aligns completely with elastic convex block 11 this moment, elastic convex block 11's extrusion force disappears, so that elastic convex block 11 resumes former state in order to peg graft to inserting groove 12 in, thereby it takes place to have reduced the condition that dead lever 8 fell out in accomodating groove 10, the stability of dead lever 8 in accomodating groove 10 has been improved.

Referring to fig. 5, the control circuit includes: the comparison unit 13 is connected with the pressure sensor 4 and used for receiving the pressure signal and outputting an excitation signal when the voltage value of the pressure signal is smaller than the voltage value of a preset reference signal; the delay unit 14 is connected with the comparison unit 13 and used for receiving the driving signal, and outputting the driving signal after the preset fixed time length after receiving the driving signal; and the prompting unit 15 is connected with the delay unit 14 and the prompting device 5 and is used for receiving the driving signal, and when the driving signal is received, the prompting device 5 is powered on to send out a prompting signal.

The comparison unit 13 includes: the reference voltage generating circuit comprises a first resistor R1 and a second resistor R2, wherein one end of the first resistor R1 is connected with the direct-current power supply V1, and the other end of the first resistor R1 is connected with the second resistor R2 in series and then grounded; wherein a reference signal is generated between the first resistor R1 and the second resistor R2; and the comparator A is provided with a same-phase input end, an inverted-phase input end and an output end, the same-direction input end of the comparator A is connected with the reference voltage generating circuit, the inverted-direction input end of the comparator A is connected with the output end of the pressure sensor 4, and the output end of the comparator A outputs an excitation signal. The delay unit 14 includes: and an NPN triode Q, the base electrode of which is connected with the output end of the comparator A, the emitter electrode of which is grounded through a third resistor R3, and a second direct-current power supply V2 which is connected with the time-delay relay KT and the collector electrode in series. The presentation unit 15 includes: a time delay closed normally open switch S, time delay closed normally open switch S is connected with time delay relay KT, third DC power supply V3 establishes ties behind time delay closed normally open switch S, suggestion device 5 and the fourth resistor R4 ground connection. The first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 may be resistances or may be electronic components equivalent to the resistances.

The control circuit of the embodiment of the application has the technical effects that: when the sealing door 3 is switched from a closed station to an open station, the pressure sensor 4 sends a pressure signal to the comparator A to be compared with a reference signal, the voltage value of the pressure signal is smaller than that of the reference signal, the output end of the comparator A outputs an excitation signal, the excitation signal drives the NPN triode Q to be conducted, if the NPN triode Q is continuously conducted for a fixed time, the time delay relay KT is excited to enable the time delay closed normally-open switch S to be closed, and the horn is electrified to send a sound.

The implementation principle of this application embodiment curing box does: after the staff opened sealing door 3, control circuit began the timing, in predetermineeing fixed time back, if sealing door 3 still is in the open mode, loudspeaker can send and pipe the sound in order reminding the staff in time to close sealing door 3 and handle, have reduced because of the staff forgets to close sealing door 3 and the not good condition of maintenance environment in the curing box appears.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A curing box is characterized in that: including box (1) and offer mouthful (2) of placing in box (1) one end, it is connected with sealing door (3) to rotate on box (1), sealing door (3) have and seal the station and open the station, work as sealing door (3) are when sealing the station, sealing door (3) cover places mouthful (2), work as sealing door (3) are in when opening the station, place mouthful (2) and external intercommunication, be provided with pressure sensor (4) on box (1), pressure sensor's (4) probe can with be in sealing door (3) butt of station, pressure sensor's (4) output is connected in control circuit, control circuit's output is connected with suggestion device (5), suggestion device (5) set up on box (1), when the voltage value of predetermineeing the reference signal is greater than pressure sensor (4) output pressure signal's voltage value and surpass when predetermineeing fixed length, suggestion device (5) output prompt signal.

2. A curing box according to claim 1, characterized in that: place and seted up standing groove (6) on the terminal surface of mouthful (2) edge and sealing door (3) butt, the periphery is provided with protection pad (7) in standing groove (6), pressure sensor (4) set up in standing groove (6) just protection pad (7) cover is located the lateral wall of pressure sensor (4).

3. A curing box according to claim 2, characterized in that: the box body (1) is connected with a fixing rod (8) in a rotating mode, the sealing door (3) is fixedly connected with a hanging ring (9), and when the sealing door (3) is located at an open station, the fixing rod (8) can be connected with the hanging ring (9) in a clamping mode.

4. A curing box according to claim 3, wherein: the box body (1) is provided with an accommodating groove (10) used for accommodating the fixing rod (8) on the end face of the accommodating groove (6), and the fixing rod (8) is rotatably connected to the side wall of the accommodating groove (10).

5. A curing box according to claim 4, characterized in that: the side wall of the accommodating groove (10) is fixedly connected with an elastic lug (11) which can be clamped with the side wall of the fixing rod (8).

6. A curing box according to claim 5, characterized in that: the side wall of the fixed rod (8) is provided with an insertion groove (12) for the elastic lug (11) to be inserted, and when the fixed rod (8) is completely positioned in the accommodating groove (10), the elastic lug (11) is inserted in the insertion groove (12).

7. A curing box according to claim 1, characterized in that: the control circuit includes:

the comparison unit (13) is connected with the pressure sensor (4) and used for receiving the pressure signal and outputting an excitation signal when the voltage value of the pressure signal is smaller than the voltage value of a preset reference signal;

the delay unit (14) is connected with the comparison unit (13) and used for receiving the driving signal, and outputting the driving signal after the preset fixed time length after receiving the driving signal;

and the prompting unit (15) is connected with the delay unit (14) and the prompting device (5) and is used for receiving the driving signal, and when the driving signal is received, the prompting device (5) is electrified to send out a prompting signal.

8. A curing box according to claim 7, characterized in that: the comparison unit (13) comprises:

the reference voltage generating circuit comprises a first resistor (R1) and a second resistor (R2), wherein one end of the first resistor (R1) is connected to the first direct current power supply (V1), and the other end of the first resistor (R1) is connected with the second resistor (R2) in series and then grounded; wherein a reference signal is generated between the first resistor (R1) and the second resistor (R2);

the comparator A is provided with a same-phase input end, an inverted-phase input end and an output end, the same-direction input end of the comparator A is connected with the reference voltage generating circuit, the inverted-direction input end of the comparator A is connected with the output end of the pressure sensor (4), and the output end of the comparator A outputs an excitation signal.

9. A curing box according to claim 8, characterized in that: the delay unit (14) comprises:

an NPN triode Q, the base electrode of which is connected with the output end of the comparator A, the emitter electrode of which is connected with one end of a third resistor (R3), and the other end of the third resistor is grounded; the collecting electrode is connected with delay relay KT one end, and the delay relay KT other end is connected with the output of second DC power supply (V2).

10. A curing box according to claim 9, characterized in that: the presentation unit (15) includes:

and the time-delay closed normally-open switch S is connected with the time-delay relay KT, and the third direct-current power supply (V3) is connected with the time-delay closed normally-open switch S, the prompting device (5) and the fourth resistor (R4) in series and then is grounded.