High-rise building fire-fighting equipment detection device

Abstract

The utility model belongs to the technical field of high-rise building fire-fighting equipment detection, and particularly relates to a high-rise building fire-fighting equipment detection device, which comprises a smoke hood, the bottom of the smoke hood is in threaded connection with a circular-truncated-cone-shaped bottom-layer protective cover, a plurality of uniformly distributed air inlet holes are formed in the circumferential side wall of the bottom-layer protective cover, and a fan is mounted in an inner cavity of the bottom-layer protective cover; the overall size of the device is small, fire fighting detection is conducted on a smoke alarm by means of the multiple detection mechanisms at the top of the device body, detection personnel can conveniently hold the device body by arranging the first butt joint rod, the fan is arranged and arranged under the smoke generator, and the detection efficiency is improved by arranging the first butt joint rod and the second butt joint rod. The smoke is quickly blown away by using wind generated when the fan works, so that residual smoke in the bottom of the bottom plate, the inner cavity of the displacement cavity and the inner cavity of the hollow interlayer of the diffusion head can be quickly discharged under the action of the wind generated when the fan works, time is greatly saved for subsequent detection, and the overall detection effect of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-rise building fire protection equipment detection, in particular to a high-rise building fire protection equipment detection device. Background Art

[0002] Building fire protection facilities refer to the general term for automatic fire alarm systems, automatic sprinkler fire extinguishing systems, fire hydrant systems, etc. installed in buildings (structures) for the prevention and extinguishing of building fires. Commonly used ones include automatic fire alarm systems, automatic sprinkler fire extinguishing systems, fire hydrant systems, gas fire extinguishing systems, foam fire extinguishing systems, dry powder fire extinguishing systems, smoke and exhaust systems, safe evacuation systems, etc. It is an important facility to ensure the fire safety of buildings and the safety of personnel evacuation. It is an important part of modern buildings and plays an important role in protecting buildings. Smoke alarm is also one of the fire protection equipment in high-rise buildings. In order to effectively protect the lives and property of citizens and the safety of national property, smoke alarms need to be tested frequently.

[0003] For example, the Chinese patent with the publication number CN219721800U discloses a high-rise building fire equipment detection device, including a box, the inner wall of the box is fixedly connected to a smoke box, the bottom wall of the smoke box is fixedly connected to a smoke sprayer, the top of the box is fixedly connected to a long box, the top of the long box is penetrated and slidably connected to a mist pipe, the side wall of the mist pipe is symmetrically provided with a plurality of grooves, the side wall of the long box is symmetrically provided with threaded holes, each of the threaded holes is threadedly connected with a bolt, one end of each bolt is inserted into an adjacent groove, the top of the mist pipe is fixedly connected to a circular plate, the top of the circular plate is evenly provided with a plurality of circular holes with different apertures, the top side wall of the circular plate is rotatably connected to a rotating plate, and the top of the rotating plate is provided with a long hole. The utility model sets structures such as a circular plate, a rotating plate and a circular hole, and due to the different apertures of the circular holes, the smoke concentration diffused per unit time is different, and thus the smoke concentration that the smoke alarm can withstand can be measured.

[0004] This patent has some shortcomings when in use, such as: the main body of the patent is large in size, which is not convenient for the user to detect the smoke alarm with a handheld detection device. In addition, the device in the patent diffuses the smoke through the motor fan. After the smoke alarm is detected, there will still be a certain amount of smoke in the fog pipe in the patent. In order not to affect the next accurate detection, it is necessary to wait for the motor fan to exhaust the smoke in the fog pipe. This process takes a certain amount of time, resulting in the overall detection efficiency of the device being poor when detecting multiple smoke alarms in the corridor; further, the smoke generator in the patent is placed in a lower position, resulting in a certain amount of time from the start of the device to the smoke alarm receiving the smoke, and the detection efficiency of a single smoke alarm is also relatively low. In view of this, we propose a high-rise building fire protection equipment detection device. Summary of the invention

[0005] The purpose of the utility model is to provide a high-rise building fire equipment detection device to solve the problems raised in the above background technology.

[0006] In view of this, the utility model provides a high-rise building fire protection equipment detection device, comprising:

[0007] A smoke hood, wherein a bottom protective cover in the shape of a truncated cone is threadedly connected to the bottom of the smoke hood, a plurality of evenly distributed air inlet holes are opened on the circumferential side wall of the bottom protective cover, and a fan is installed in the inner cavity of the bottom protective cover;

[0008] An inner liner layer, the inner liner layer is located in the inner cavity of the smoke hood, a connecting plate is symmetrically fixed to the circumferential outer wall of the inner liner layer and near the bottom, and the other side of the connecting plate is fixed to the circumferential inner wall of the smoke hood, a bottom plate is fixed to the inner cavity of the inner liner layer, a smoke generator is installed on the lower surface of the bottom plate, a displacement cavity is formed by an annular channel between the circumferential inner wall of the smoke hood and the circumferential outer wall of the inner liner layer, a diffusion head is slidably connected in the displacement cavity, the diffusion head is in a hollow annular shape, and a smoke inlet is provided at the bottom of the diffusion head, a matching annular ring mesh plate is fixed to the smoke inlet, an electric push rod is fixed to the upper surface of the connecting plate, and the top end of the telescopic rod of the electric push rod is fixed to the lower surface of the annular mesh plate;

[0009] An annular baffle, the annular baffle is slidably disposed in the inner cavity of the hollow interlayer of the diffuser head, and the circumferential inner wall of the annular baffle is in contact with the circumferential wall on the inner side of the hollow interlayer of the diffuser head, and a plurality of evenly distributed smoke outlets are provided on the circumferential wall on the inner side of the diffuser head;

[0010] A lifting assembly, which is arranged in the hollow sandwich cavity of the diffuser head and is used to control the lifting and lowering of the annular baffle;

[0011] A docking rod 1 is fixedly mounted on the lower surface of the bottom shield to facilitate the inspection personnel to hold it.

[0012] In the present technical solution, the overall volume of the device is relatively small, and it relies on multiple detection mechanisms on the top of the device body to perform fire detection on the smoke alarm, and by providing a docking rod, it is convenient for the detection personnel to hold the device body. In addition, the device generates a large amount of smoke by providing a smoke generator, and adaptively diffuses the smoke generated by the smoke generator by providing a displacement cavity and a hollow interlayer of a diffusion head to ensure the concentration and purity of the smoke. At the same time, the overall relatively short smoke flow path enables the smoke alarm to quickly sense the smoke, thereby alarming, ensuring the accuracy of the device when performing fire detection on the smoke alarm, and avoiding the decrease in smoke concentration when the fan blades are used to accelerate the diffusion of smoke as in traditional detection devices. This makes the smoke alarm unable to sound the alarm in a short time. By setting up a lifting component, the lifting component is used to change the height of the annular baffle in the hollow interlayer of the diffuser head, thereby changing the amount of smoke entering the central ring of the diffuser head, thereby achieving the alarm effect when the smoke alarm senses different amounts of smoke during fire detection. By setting up a fan and setting the fan directly under the smoke generator, the wind generated by the fan when working is used to quickly disperse the smoke, so that the residual smoke at the bottom of the base plate, the inner cavity of the displacement cavity and the inner cavity of the hollow interlayer of the diffuser head can be quickly discharged under the action of the wind formed by the fan, which greatly saves time for subsequent detection and improves the overall detection effect of the device.

[0013] In the above technical solution, further, the lifting assembly includes:

[0014] An inner gear ring, the inner gear ring is rotatably mounted on the upper surface of the annular mesh plate, a plurality of limit blocks equidistantly distributed in a circle are fixed on the upper surface of the annular mesh plate and in contact with the circumferential outer wall of the inner gear ring, a lifting plate is fixed on the circumferential inner wall on the outer side of the diffusion head and on the back side of a plurality of guide rail grooves, a sliding groove is provided in the lifting plate, a threaded rod is rotatably connected in the sliding groove, a threaded block slidably matched with the sliding groove is threadedly connected to the threaded rod, the threaded block is fixed to the circumferential outer wall of the annular baffle, and the bottom end of the threaded rod is coaxially connected to a driven wheel meshing with the inner gear ring.

[0015] In the above technical solution, further, the lifting assembly also includes:

[0016] A support frame is fixedly installed in the hollow interlayer inner cavity of the diffuser head, a motor is fixed on the lower surface of the support frame, an output shaft end of the motor is coaxially connected with a connecting shaft, and the bottom end of the connecting shaft is coaxially connected with a driving wheel meshing with an inner gear ring.

[0017] In the present technical solution, a lifting assembly is provided, driven by a motor, and transmitted through a driving wheel, an inner gear ring, and a driven wheel, so that the threaded block can freely move upward or downward in the slide groove, thereby driving the annular baffle to move upward or downward in the hollow interlayer of the diffuser head, so as to change the number of multiple smoke outlets that can connect the hollow interlayer of the diffuser head and the center ring, and finally achieve the effect of changing the rate at which smoke enters the smoke alarm.

[0018] In the above technical solution, further, the circumferential outer wall of the diffusion head is provided with a plurality of guide rail grooves which are equidistantly distributed around the circumference, and the circumferential inner wall of the smoke hood is fixed with a plurality of limiting protrusions which are equidistantly distributed around the circumference near the upper opening, and the guide rail grooves are slidably matched with the corresponding limiting protrusions.

[0019] In the technical solution, by providing the guide rail groove and the limiting protrusion, the diffusion head will not rotate when sliding up and down in the displacement cavity.

[0020] In the above technical solution, further, an interlayer mesh plate is fixed in the inner cavity of the bottom shield and directly above the fan.

[0021] In the present technical solution, by providing an interlayer mesh plate and utilizing a plurality of mesh holes on the interlayer mesh plate, the wind generated by the working fan can be evenly delivered into the upper space.

[0022] In the above technical solution, further, a docking rod 2 is provided at the bottom end of the docking rod 1, a threaded sleeve is provided at the connection between the docking rod 1 and the docking rod 2, and the upper and lower ends of the threaded sleeve are respectively threadedly matched with the docking rod 1 and the docking rod 2, and the docking rod 1 and the docking rod 2 are fixedly connected by the threaded sleeve.

[0023] In the technical solution, by providing the second docking rod and the threaded sleeve, the device can perform fire detection on smoke alarms installed at different heights.

[0024] In the above technical solution, further, a control switch is installed on the docking rod, and the control switch is electrically connected to the fan, the smoke generator, the electric push rod and the motor.

[0025] In the present technical solution, by providing a control switch, it is convenient for the inspector to control the operation of each electronic component in the device.

[0026] The beneficial effects of the utility model are:

[0027] 1. The high-rise building fire equipment detection device has a relatively small overall size and relies on multiple detection mechanisms on the top of the device body to perform fire detection on the smoke alarm. In addition, a docking rod is provided to facilitate the detection personnel to hold the device body.

[0028] 2. The high-rise building fire protection equipment detection device generates a large amount of smoke by arranging a smoke generator, and adaptively diffuses the smoke generated by the smoke generator by arranging a displacement cavity and a hollow interlayer of a diffusion head to ensure the concentration and purity of the smoke. At the same time, the overall relatively short smoke flow path enables the smoke alarm to quickly sense the smoke and thus alarm, thereby ensuring the accuracy of the device when performing fire detection on the smoke alarm and avoiding the situation in which the smoke concentration decreases and the smoke alarm cannot alarm in a short time when the fan blades are used to accelerate the diffusion of smoke in the traditional detection device.

[0029] 3. The high-rise building fire equipment detection device is driven by a motor by setting a lifting component and transmitting through a driving wheel, an inner ring gear and a driven wheel, so that the annular baffle can move freely upward or downward in the slide groove, thereby changing the amount of smoke entering the central ring of the diffusion head, thereby realizing the alarm effect when the smoke alarm senses different amounts of smoke during fire detection.

[0030] 4. The high-rise building fire protection equipment detection device is equipped with a fan, and the fan is arranged directly below the smoke generator. The wind generated by the fan when working is used to quickly disperse the smoke, so that the residual smoke located at the bottom of the base plate, the inner cavity of the displacement cavity and the hollow interlayer inner cavity of the diffusion head can be quickly discharged under the action of the wind formed by the fan, which greatly saves time for subsequent detection and improves the overall detection effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the overall structure of the smoke detection mechanism in the utility model;

[0033] Figure 3 This is an exploded schematic diagram of the smoke detection mechanism in the utility model;

[0034] Figure 4 This is a schematic diagram of the distribution of the components of the inner cavity of the diffuser head in the utility model;

[0035] Figure 5 For this utility model Figure 4 The enlarged structural diagram at A in the middle;

[0036] Figure 6 This is a schematic diagram of the distribution of the components of the inner cavity of the diffuser head in the utility model (in a top view);

[0037] Figure 7 It is a structural schematic diagram of the lifting component in the utility model.

[0038] The symbols in the figure are:

[0039] 1. Smoke hood; 2. Bottom shield; 3. Air inlet; 4. Fan; 5. Interlayer mesh plate; 6. Inner liner layer; 7. Connecting plate; 8. Bottom plate; 9. Smoke generator; 10. Displacement chamber; 11. Diffuser head; 12. Guide groove; 13. Limiting protrusion; 14. Annular mesh plate; 15. Electric push rod; 16. Inner gear ring; 17. Limiting block; 18. Lifting plate; 19. Slide; 20. Threaded rod; 21. Threaded block; 22. Driven wheel; 23. Support frame; 24. Motor; 25. Connecting shaft; 26. Driving wheel; 27. Annular baffle; 28. Smoke outlet; 29. ​​Docking rod 1; 30. Docking rod 2; 31. Threaded sleeve; 32. Control switch. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0043] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0044] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or still includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples. Example

[0045] See also Figure 1 - Figure 7 As shown, this embodiment provides a high-rise building fire protection equipment detection device, including:

[0046] A smoke hood 1, the bottom of which is threadedly connected to a truncated cone-shaped bottom shield 2, a circumferential side wall of which is provided with a plurality of evenly distributed air inlet holes 3, and an inner cavity of the bottom shield 2 is provided with a fan 4;

[0047] The liner layer 6 is located in the inner cavity of the smoke hood 1. A connecting plate 7 is symmetrically fixed to the outer circumferential wall of the liner layer 6 and near the bottom, and the other side of the connecting plate 7 is fixed to the inner circumferential wall of the smoke hood 1. A bottom plate 8 is fixed to the inner cavity of the liner layer 6. A smoke generator 9 is installed on the lower surface of the bottom plate 8. The annular channel between the inner circumferential wall of the smoke hood 1 and the outer circumferential wall of the liner layer 6 forms a displacement cavity 10. A diffusion head 11 is slidably connected in the displacement cavity 10. The diffusion head 11 is in a hollow annular shape, and a smoke inlet is provided at the bottom of the diffusion head 11. A matching annular ring-shaped mesh plate 14 is fixed at the smoke inlet. An electric push rod 15 is fixed to the upper surface of the connecting plate 7, and the top of the telescopic rod of the electric push rod 15 is fixed to the lower surface of the annular mesh plate 14.

[0048] An annular baffle 27, which is slidably disposed in the inner cavity of the hollow interlayer of the diffuser head 11, and the circumferential inner wall of the annular baffle 27 is in contact with the circumferential wall on the inner side of the hollow interlayer of the diffuser head 11, and a plurality of evenly distributed smoke outlets 28 are provided on the circumferential wall on the inner side of the diffuser head 11;

[0049] A lifting assembly, which is disposed in the hollow sandwich cavity of the diffuser head 11 and is used to control the lifting of the annular baffle 27;

[0050] A docking rod 29 is fixedly mounted on the lower surface of the bottom shield 2 to facilitate the inspection personnel to hold it.

[0051] Among them, when the present device is in use, first, the operator holds the docking rod 29, aligns the smoke hood 1 in the present device with the smoke alarm and inserts it, so that the smoke alarm is in the central ring of the diffusion head 11 in the present device, and then starts the smoke generator 9, the smoke generator 9 works and generates a large amount of smoke. It is worth noting that the smoke generator 9 is a prior art and should be well known to those skilled in the art, and will not be described in detail in this application; the smoke generated by the smoke generator 9 accumulates in the lower surface interlayer of the bottom plate 8, and spreads along the bottom side edge of the liner layer 6 toward the displacement cavity 10, and then the smoke will enter the hollow interlayer of the diffusion head 11 through the multiple meshes on the annular mesh plate 14. At this time, the operator controls the lifting assembly to make the annular baffle 27 continuously move downward. In the process of the downward movement of the annular baffle 27, more and more smoke outlets 28 are no longer blocked and limited by the annular baffle 27. At this time, the upper part of the hollow interlayer of the diffusion head 11 is connected to the central ring of the diffusion head 11, and the smoke can enter the center of the diffusion head 11 along the multiple smoke outlets 28 on the upper side. The smoke alarm is tested in the circular ring. As the circular baffle 27 continues to descend, more and more smoke outlets 28 are in a smooth state. At this time, the amount of smoke entering the central circular ring of the diffusion head 11 can gradually increase until the fire detection is completed. The operation of the smoke generator 9 is stopped. At this time, no smoke is generated. Then the fan 4 is started to make the fan 4 run at a high speed. The fan 4 works and sucks the outside air into the inner cavity of the bottom shield 2 through the air inlet 3 and then sends the wind into the displacement cavity 10 and the hollow interlayer cavity of the diffusion head 11. In this process, the residual smoke located at the bottom of the bottom plate 8, the inner cavity of the displacement cavity 10 and the hollow interlayer cavity of the diffusion head 11 can be quickly discharged under the action of the wind formed by the operation of the fan 4. It is worth adding that the operator can start the two electric push rods 15, the two electric push rods 15 work, the telescopic rods of the two electric push rods 15 extend upward, and push the annular mesh plate 14 and the diffusion head 11 to move upward. At this time, the length of the central circular ring of the diffusion head 11 increases, so as to facilitate the detection of smoke alarms of different lengths.

[0052] The overall volume of the device is relatively small, and multiple detection mechanisms on the top of the device body are used to perform fire detection on the smoke alarm. A docking rod 29 is provided to facilitate the detection personnel to hold the device body. In addition, the device generates a large amount of smoke by providing a smoke generator 9, and adaptively diffuses the smoke generated by the smoke generator 9 by providing a displacement cavity 10 and a hollow interlayer of a diffusion head 11 to ensure the concentration and purity of the smoke. At the same time, the overall relatively short smoke flow path enables the smoke alarm to quickly sense the smoke, thereby alarming, ensuring the accuracy of the device when performing fire detection on the smoke alarm, and avoiding the situation in which the smoke concentration decreases and the smoke alarm is ineffective when the fan blades are used to accelerate the diffusion of smoke in traditional detection devices. The method can perform alarm work in a short time, by setting a lifting component, and using the lifting component to change the height of the annular baffle 27 in the hollow interlayer of the diffusion head 11, thereby changing the amount of smoke passing into the central ring of the diffusion head 11, so as to achieve the alarm effect when the smoke alarm senses different amounts of smoke during fire detection, by setting a fan 4, and setting the fan 4 directly below the smoke generator 9, the wind generated by the fan 4 when working is used to quickly blow away the smoke, so that the residual smoke located at the bottom of the bottom plate 8, the inner cavity of the displacement cavity 10 and the inner cavity of the hollow interlayer of the diffusion head 11 can be quickly discharged under the action of the wind formed by the fan 4, which greatly saves time for subsequent detection and improves the overall detection effect of the device. Example

[0053] This embodiment provides a high-rise building fire equipment detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the lifting component includes:

[0054] An inner gear ring 16 is rotatably mounted on the upper surface of the annular mesh plate 14. A plurality of limit blocks 17 are fixed on the upper surface of the annular mesh plate 14 and are equidistantly distributed on the circumferential outer wall of the inner gear ring 16. A lifting plate 18 is fixed on the circumferential inner wall of the outer side of the diffusion head 11 and on the back side of the plurality of guide grooves 12. A slide groove 19 is provided in the lifting plate 18. A threaded rod 20 is rotatably connected in the slide groove 19. A threaded block 21 that is slidably matched with the slide groove 19 is threadedly connected to the threaded rod 20. The threaded block 21 is fixed to the circumferential outer wall of the annular baffle 27. The bottom end of the threaded rod 20 is coaxially connected to a driven wheel 22 that meshes with the inner gear ring 16.

[0055] The support frame 23 is fixedly installed in the hollow interlayer inner cavity of the diffuser head 11. A motor 24 is fixed to the lower surface of the support frame 23. The output shaft end of the motor 24 is coaxially connected to a connecting shaft 25. The bottom end of the connecting shaft 25 is coaxially connected to a driving wheel 26 meshing with the inner gear ring 16.

[0056] When the lifting assembly is working, the motor 24 is started, the output shaft of the motor 24 rotates and drives the connecting shaft 25 to rotate, the connecting shaft 25 drives the driving wheel 26 to rotate, the driving wheel 26 drives the inner gear ring 16 to rotate in multiple limit blocks 17, and the rotation of the inner gear ring 16 can drive multiple driven wheels 22 to rotate, the driven wheel 22 drives the corresponding threaded rod 20 to rotate, and the threaded block 21 located on the threaded rod 20 can be displaced upward or downward along the slide groove 19 under the action of the threaded force, and the displacement direction is determined by the rotation direction of the output shaft of the motor 24.

[0057] By setting up a lifting component, driving it with a motor 24, and transmitting it through the driving wheel 26, the inner ring gear 16 and the driven wheel 22, the annular baffle 27 can be freely moved upward or downward in the slide groove 19, thereby driving the annular baffle 27 to move upward or downward in the hollow interlayer of the diffuser head 11, so as to change the number of multiple smoke outlets 28 that can connect the hollow interlayer of the diffuser head 11 and the central ring, and finally achieve the effect of changing the rate at which smoke enters the smoke alarm. Example

[0058] The present embodiment provides a high-rise building fire protection equipment detection device. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: a plurality of guide rail grooves 12 equidistantly distributed on the circumference are provided on the circumferential outer wall of the diffusion head 11, and a plurality of limiting protrusions 13 equidistantly distributed on the circumference are fixed on the circumferential inner wall of the smoke hood 1 near the upper opening, and the guide rail grooves 12 are slidably matched with the corresponding limiting protrusions 13.

[0059] The diffusion head 11 can slide freely in the inner cavity of the displacement cavity 10 .

[0060] By providing the guide rail groove 12 and the limiting protrusion 13 , the diffusion head 11 will not rotate when sliding up and down in the displacement chamber 10 . Example

[0061] This embodiment provides a high-rise building fire protection equipment detection device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: an interlayer mesh plate 5 is fixed in the inner cavity of the bottom protective cover 2 and directly above the fan 4.

[0062] The wind generated by the operation of the fan 4 can be sent into the upper space through the multiple mesh holes on the interlayer mesh plate 5.

[0063] By providing the interlayer mesh plate 5 and utilizing the multiple mesh holes on the interlayer mesh plate 5 , the wind generated by the fan 4 can be evenly delivered into the upper space. Example

[0064] The present embodiment provides a high-rise building fire protection equipment detection device. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: a docking rod 20 is provided at the bottom end of the docking rod 29, a threaded sleeve 31 is provided at the connection between the docking rod 29 and the docking rod 30, and the upper and lower ends of the threaded sleeve 31 are respectively threadedly matched with the docking rod 29 and the docking rod 30, and the docking rod 20 is fixedly connected with the docking rod 20 by the threaded sleeve 31.

[0065] In order to cope with smoke alarms installed at different heights, the inspector can choose whether to add the docking rod 2 30 according to actual needs. When the docking rod 2 30 is extended, the inspector can hold the device by holding the docking rod 2 30.

[0066] By arranging the docking rod 2 30 and the threaded sleeve 31, the device can perform fire detection on smoke alarms installed at different heights. Example

[0067] This embodiment provides a high-rise building fire protection equipment detection device, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: a control switch 32 is installed on the docking rod 29, and the control switch 32 is electrically connected to the fan 4, the smoke generator 9, the electric push rod 15 and the motor 24.

[0068] The inspector can control the fan 4 , the smoke generator 9 , the electric push rod 15 and the motor 24 by controlling the switch 32 .

[0069] By providing the control switch 32, it is convenient for the inspector to control the operation of each electronic component in the device.

[0070] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A high-rise building fire equipment detection device, characterized in that: include: A smoke hood (1), wherein the bottom of the smoke hood (1) is threadedly connected to a bottom protective hood (2) in the shape of a truncated cone, a circumferential side wall of the bottom protective hood (2) is provided with a plurality of evenly distributed air inlet holes (3), and a fan (4) is installed in the inner cavity of the bottom protective hood (2); An inner liner layer (6), the inner liner layer (6) being located in the inner cavity of the smoke hood (1), a connecting plate (7) being symmetrically fixed to the outer circumferential wall of the inner liner layer (6) and close to the bottom, and the other side of the connecting plate (7) being fixed to the inner circumferential wall of the smoke hood (1), a bottom plate (8) being fixed to the inner cavity of the inner liner layer (6), a smoke generator (9) being installed on the lower surface of the bottom plate (8), and the circumferential inner wall of the smoke hood (1) and the circumferential outer wall of the inner liner layer (6) being symmetrically fixed to the outer circumferential wall of the inner liner layer (6). A displacement chamber (10) is formed by a circular annular channel between the connecting plates (7), a diffusion head (11) is slidably connected in the displacement chamber (10), the diffusion head (11) is in the shape of a hollow circular ring, a smoke inlet is provided at the bottom of the diffusion head (11), a matching circular annular mesh plate (14) is fixed at the smoke inlet, an electric push rod (15) is fixed on the upper surface of the connecting plate (7), and the top end of the telescopic rod of the electric push rod (15) is fixed to the lower surface of the annular mesh plate (14); an annular baffle (27), the annular baffle (27) being slidably disposed in the inner cavity of the hollow interlayer of the diffuser head (11), and the circumferential inner wall of the annular baffle (27) being in contact with the circumferential wall on the inner side of the hollow interlayer of the diffuser head (11), and a plurality of evenly distributed smoke outlets (28) being provided on the circumferential wall on the inner side of the diffuser head (11); A lifting assembly, the lifting assembly being arranged in the hollow sandwich cavity of the diffuser head (11) and used to control the lifting and lowering of the annular baffle (27); A docking rod (29) is fixedly mounted on the lower surface of the bottom shield (2) to facilitate the inspection personnel to hold it.

2. The high-rise building fire equipment detection device according to claim 1 is characterized in that: The lifting assembly comprises: An inner gear ring (16), the inner gear ring (16) is rotatably mounted on the upper surface of the annular mesh plate (14), a plurality of limit blocks (17) equidistantly distributed in a circumference are fixed on the upper surface of the annular mesh plate (14) and in contact with the circumferential outer wall of the inner gear ring (16), a lifting plate (18) is fixed on the circumferential inner wall of the outer side of the diffusion head (11) and on the back side of the plurality of guide grooves (12), a sliding groove (19) is provided in the lifting plate (18), a threaded rod (20) is rotatably connected in the sliding groove (19), a threaded block (21) is threadedly connected on the threaded rod (20) and is slidably matched with the sliding groove (19), the threaded block (21) is fixed to the circumferential outer wall of the annular baffle (27), and the bottom end of the threaded rod (20) is coaxially connected to a driven wheel (22) meshing with the inner gear ring (16).

3. The high-rise building fire equipment detection device according to claim 2 is characterized in that: The lifting assembly also includes: A support frame (23), the support frame (23) being fixedly mounted in the hollow interlayer inner cavity of the diffuser head (11), a motor (24) being fixed on the lower surface of the support frame (23), an output shaft end of the motor (24) being coaxially connected to a connecting shaft (25), and a bottom end of the connecting shaft (25) being coaxially connected to a driving wheel (26) meshing with an inner gear ring (16).

4. The high-rise building fire equipment detection device according to claim 1, characterized in that: The circumferential outer wall of the diffusion head (11) is provided with a plurality of guide rail grooves (12) distributed at equal distances around the circumference, and the circumferential inner wall of the smoke hood (1) is fixed with a plurality of limiting protrusions (13) distributed at equal distances around the circumference near the upper opening, and the guide rail grooves (12) are slidably matched with the corresponding limiting protrusions (13).

5. The high-rise building fire equipment detection device according to claim 1, characterized in that: An interlayer mesh plate (5) is fixed in the inner cavity of the bottom protective cover (2) and directly above the fan (4).

6. The high-rise building fire equipment detection device according to claim 1, characterized in that: A second docking rod (30) is provided at the bottom end of the first docking rod (29), a threaded sleeve (31) is provided at the connection between the first docking rod (29) and the second docking rod (30), and the upper and lower ends of the threaded sleeve (31) are respectively threadably matched with the first docking rod (29) and the second docking rod (30), and the first docking rod (29) and the second docking rod (30) are fixedly connected via the threaded sleeve (31).

7. The high-rise building fire fighting equipment detection device according to claim 1, characterized in that: A control switch (32) is installed on the docking rod (29), and the control switch (32) is electrically connected to the fan (4), the smoke generator (9), the electric push rod (15), and the motor (24).

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