Automatic fire alarm device

Abstract

The utility model belongs to the technical field of fire alarm devices, and discloses an automatic fire alarm device, which comprises a mounting seat and a mounting cover, the bottom surface of the mounting seat is provided with guide mechanisms in a circumferential array, the bottom surface of the mounting seat is provided with two opposite clamping grooves, and the top end of the mounting cover is fixedly connected with two opposite clamping blocks. The handle can be held by hand, the guide plate is aligned with the clamping grooves, then the top end of the mounting cover is directly pushed into the mounting base, the two clamping blocks are also inserted into the two clamping grooves respectively, the pressing plate is squeezed to move upwards, then the mounting cover is rotated to enable the two clamping blocks to move to be close to the two clamping plates respectively, and the clamping plates are squeezed to move downwards. And when the two clamping blocks move to one side of the clamping plate, the clamping plate automatically resets to block the clamping blocks, reverse rotation of the clamping blocks is avoided, fixing of the mounting cover can be completed, operation is more convenient, and the mounting cover can be easily inserted into the mounting base to be mounted.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire alarm devices, in particular to an automatic fire alarm device. Background Art

[0002] There are fire hazards in many places such as buildings, factories, and public places. In order to discover and deal with them in time and avoid the expansion of dangerous situations, it is usually necessary to install an automatic fire alarm device on the top wall of the room. Existing automatic fire alarm devices usually include a controller, a smoke sensor, an alarm light, and a sounder. The smoke sensor, the alarm light, and the sounder are all electrically connected to the controller, and the controller is connected to a power supply. When a fire hazard occurs, thick smoke will trigger the smoke sensor, and the smoke sensor will send an electrical signal to the controller. The controller controls the alarm light to send a warning light signal, and the sounder to send a warning sound signal.

[0003] According to the patent number CN214507609U, an automatic fire alarm device for fire detection is disclosed, including a mounting base, a connecting ring is arranged on the top of the mounting base, a protective cover is arranged on the top of the connecting ring, the connecting surface of the protective cover and the connecting ring is provided with the mounting assembly, and fixing assemblies are arranged on both sides of the bottom of the connecting ring. The mounting assembly includes a limiting protrusion, a card slot, a rubber block, a rubber protrusion and a limiting groove. The top end surface of the connecting ring is provided with a plurality of the card slots at equal angles, and the bottom end surface of the protective cover is provided with a plurality of the limiting protrusions at equal angles. The utility model facilitates the disassembly and assembly of the protective cover through the designed mounting assembly, so that the sensor inside the automatic fire alarm device can be quickly repaired when damaged, so that the automatic fire alarm device can maintain a normal operating state for a long time, which is convenient for firefighters to operate and improves work efficiency.

[0004] In the above patents and existing known technical means, since the alarm is installed on various types of walls or wall tops in the building, the installation posture of the installer is relatively uncoordinated, and the installation position needs to be adjusted many times. It is not easy to accurately insert the installation cover into the installation slot, which is not conducive to the subsequent maintenance and replacement of the alarm. To this end, we provide a fire automatic alarm device to solve the above problems. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an automatic fire alarm device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic fire alarm device, comprising a mounting seat and a mounting cover, the bottom surface of the mounting seat is provided with a circular array of guide mechanisms, the bottom surface of the mounting seat is provided with two opposite card slots, the top of the mounting cover is fixedly connected with two opposite card blocks, the surface of the mounting cover is fixedly connected with two opposite guide plates, and the two guide plates correspond to the two card blocks respectively, and each of the card slots is provided with a card connection mechanism for positioning the card block.

[0007] The guide mechanism comprises a guide frame slidably arranged on the bottom surface of the mounting seat, a second guide rod fixedly connected to the surface of the mounting seat is arranged above the guide frame, a first set of plates is elastically slidably arranged on the second guide rod, and the first set of plates is connected to the guide frame.

[0008] The clamping mechanism includes a sliding groove opened in the clamping groove and a pressure plate elastically sliding in the sliding groove, and the clamping block slides in the sliding groove and contacts the bottom surface of the pressure plate, and the inner bottom wall of the sliding groove is elastically provided with a clamping plate, and a side surface of the clamping plate close to the clamping groove is inclined, and the clamping block is located on one side of the vertical surface of the clamping plate.

[0009] In the above technical solution, preferably, a handle is fixedly connected to the bottom end of the mounting cover, and two ends of the handle correspond to the two clamping blocks respectively.

[0010] In the above technical solution, preferably, the guide mechanism also includes two first guide rods arranged above the guide frame, and the two first guide rods are respectively located on both sides of the second guide rod, one end of the two first guide rods are fixedly connected to the surface of the mounting seat, and the guide frame is fixedly connected with a second set of plates respectively sleeved on the surfaces of the two first guide rods.

[0011] In the above technical solution, preferably, each of the first guide rods is provided with a slide groove, and the inner wall of each of the second set plates is rotatably provided with a roller, and the roller slides in the slide groove on the first guide rod.

[0012] In the above technical solution, preferably, a tension spring is fixedly connected between the first set plate and the mounting seat, and the tension spring is sleeved on the surface of the second guide rod.

[0013] In the above technical solution, preferably, a plurality of first compression springs are fixedly connected to the upper surface of the pressure plate, and the top ends of the first compression springs are fixedly connected to the inner top wall of the sliding groove.

[0014] In the above technical solution, preferably, the inner bottom wall of the sliding groove is provided with a mounting groove, and the card plate is slidably arranged in the mounting groove, the inner bottom wall of the mounting groove is fixedly connected with a second compression spring, and the top end of the second compression spring is connected to the bottom surface of the card plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] When the mounting cover needs to be removed, it is only necessary to push the mounting cover upward and squeeze the pressure plate to move upward so that the bottom surface of the blocking block is higher than the top of the blocking plate, and then rotate the mounting cover so that the two blocking blocks are in the two slots, and the mounting cover can be removed downward, which is beneficial to the inspection and replacement of the alarm.

[0017] 2. The utility model can ensure the sliding stability of the guide frame by setting the guide mechanism. When the mounting cover is pushed to the bottom of the mounting seat, the guide frame can be squeezed to move outward to ensure the installation accuracy of the mounting cover by personnel, so that the mounting cover can be moved along the inclined surface of the guide frame to the bottom of the mounting seat when pushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the top-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the installation cover of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the pallet of the utility model;

[0023] Figure 6 For this utility model Figure 1 A magnified schematic diagram of the structure at center A;

[0024] Figure 7 It is a structural schematic diagram of the guide frame of the utility model.

[0025] In the figure: 1, mounting seat; 2, mounting cover; 21, guide plate; 22, handle; 3, card slot; 41, card block; 42, sliding slot; 43, first compression spring; 44, pressure plate; 51, first guide rod; 52, second guide rod; 53, guide frame; 54, first set of plates; 55, tension spring; 56, second set of plates; 57, roller; 61, card plate; 62, mounting slot; 63, second compression spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 7 As shown, the utility model provides an automatic fire alarm device, including a mounting base 1 and a mounting cover 2. The bottom surface of the mounting base 1 is provided with a circular array of guide mechanisms, which can facilitate pushing the mounting cover 2 into the mounting base 1 so that the mounting cover 2 can be more accurately snapped into the mounting base 1. The bottom surface of the mounting base 1 is provided with two opposite card slots 3, and the top of the mounting cover 2 is fixedly connected with two opposite card blocks 41, and the two card blocks 41 correspond to the two card slots 3, so that the mounting cover 2 can be inserted into the two card slots 3 through the two card blocks 41. The surface of the mounting cover 2 is fixedly connected with two opposite guide plates 21, and the two guide plates 21 correspond to the two card blocks 41 respectively, so that when installing the mounting cover 2, the personnel can refer to the two guide plates 21 to facilitate the clear position of the two card blocks 41, so that the two card blocks 41 can be better inserted into the two card slots 3, and each card slot 3 is provided with a snap connection mechanism for positioning the card block 41.

[0028] The guide mechanism includes a guide frame 53 slidably arranged on the bottom surface of the mounting seat 1, a second guide rod 52 fixedly connected to the surface of the mounting seat 1 is arranged above the guide frame 53, a first set of plates 54 are elastically slidably arranged on the second guide rod 52, and the first set of plates 54 are connected to the guide frame 53. Through the arrangement of the above structure, the sliding stability of the guide frame 53 can be guaranteed. When the mounting cover 2 is pushed to the bottom of the mounting seat 1, the guide frame 53 can be squeezed to move outward to ensure the installation accuracy of the mounting cover 2 by personnel, so that the mounting cover 2 can be moved along the inclined surface of the guide frame 53 to the bottom of the mounting seat 1 when being pushed.

[0029] The clamping mechanism includes a sliding groove 42 provided in the clamping groove 3 and a pressure plate 44 elastically sliding in the sliding groove 42, and the clamping block 41 slides in the sliding groove 42 and contacts the bottom surface of the pressure plate 44, and the inner bottom wall of the sliding groove 42 is elastically provided with a clamping plate 61, and the side surface of the clamping plate 61 close to the clamping groove 3 is inclined, and the clamping block 41 is located on one side of the vertical surface of the clamping plate 61. With the above-mentioned structure, when the mounting cover 2 is inserted into the two clamping grooves 3 through the two clamping blocks 41, the pressure plate 44 is squeezed to move upward, and then the mounting cover 2 is rotated to make the two clamping blocks 41 move close to the two clamping plates 61 respectively, and squeeze the clamping plate 61 to move downward until the two clamping blocks 41 move to one side of the clamping plate 61. At this time, The card plate 61 will automatically reset to block the card block 41 to prevent the card block 41 from rotating in the opposite direction, thereby completing the fixation of the mounting cover 2, making the operation more convenient, and when the mounting cover 2 is inserted into the mounting seat 1 through the card block 41, the two guide plates 21 can determine the position of the two card blocks 41 to ensure that the two card blocks 41 are accurately inserted into the two card slots 3, so that personnel can still easily install the mounting cover 2 when holding it by hand. When the mounting cover 2 needs to be removed, it is only necessary to push the mounting cover 2 upward and squeeze the pressure plate 44 to move upward so that the bottom surface of the card block 41 is higher than the top of the card plate 61, and then rotate the mounting cover 2 so that the two card blocks 41 are in the two card slots 3, and then the mounting cover 2 can be removed downward.

[0030] like Figure 1 , Figure 4 As shown, a handle 22 is fixedly connected to the bottom end of the mounting cover 2, and the two ends of the handle 22 correspond to the two blocks 41 respectively. The setting of the handle 22 can facilitate personnel to take the mounting cover 2 for disassembly and assembly, and the two ends of the handle 22 also correspond to the two blocks 41, thereby ensuring the accuracy of the mounting cover 2 during installation.

[0031] like Figure 2 , Figure 3 , Figure 6 As shown, the guide mechanism also includes two first guide rods 51 arranged above the guide frame 53, and the two first guide rods 51 are respectively located on both sides of the second guide rod 52, one end of the two first guide rods 51 are fixedly connected to the surface of the mounting seat 1, and the guide frame 53 is fixedly provided with second sets of plates 56 respectively sleeved on the surfaces of the two first guide rods 51, each of the first guide rods 51 is provided with a slide groove, and the inner wall of each second set of plates 56 is rotatably provided with a roller 57, and the roller 57 slides in the slide groove on the first guide rod 51. Through the setting of the above structure, the sliding stability of the guide frame 53 can be guaranteed to avoid its tilting, so that the guide frame 53 can make the roller 57 slide in the first guide rod 51 when moving.

[0032] like Figure 2 , Figure 3 , Figure 6As shown, a tension spring 55 is fixedly connected between the first set plate 54 and the mounting seat 1, and the tension spring 55 is sleeved on the surface of the second guide rod 52. Through the setting of the tension spring 55, the guide frame 53 can have an elastic sliding effect. When the mounting cover 2 is fixed, the guide frame 53 can also squeeze and fix it.

[0033] like Figure 2 , Figure 5 As shown, a plurality of first compression springs 43 are fixedly connected to the upper surface of the pressure plate 44, and the top ends of the first compression springs 43 are fixedly connected to the inner top wall of the sliding groove 42. Through the arrangement of the first compression springs 43, the elastic force of the first compression springs 43 can be used to press the pressure plate 44 downward to ensure the tightness between the pressure plate 44 and the clamping block 41.

[0034] like Figure 5 As shown, the inner bottom wall of the sliding groove 42 is provided with a mounting groove 62, and the card plate 61 is slidably arranged in the mounting groove 62, and the inner bottom wall of the mounting groove 62 is fixedly connected with a second compression spring 63, and the top end of the second compression spring 63 is connected to the bottom surface of the card plate 61. Through the setting of the above structure, when the card block 41 slides on the inner bottom wall of the sliding groove 42, the inclined surface of the card plate 61 will be squeezed and moved downward into the mounting groove 62 until the card block 41 moves to the other side of the card plate 61, and the card plate 61 can be lifted up under the elastic force of the second compression spring 63, so that the card plate 61 blocks and limits the card block 41 on one side, ensuring that the card block 41 will not continue to slide in the sliding groove 42.

[0035] The working principle and use process of the utility model are as follows: first, observe the positions of the two card slots 3 on the bottom surface of the mounting seat 1, then hold the handle 22 and align the guide plate 21 with the card slot 3, then directly push the top end of the mounting cover 2 directly into the mounting seat 1 and squeeze each guide frame 53, and squeeze the guide frame 53 to one side, at the same time, the two card blocks 41 are also inserted into the two card slots 3 respectively, and the squeezing pressing plate 44 is moved upward, and then the mounting cover 2 is rotated to make the two card blocks 41 move close to the two card plates 61 respectively, and squeeze the card plate 61 to move downward until the two card blocks 41 move to one side of the card plate 61, at this time The card plate 61 will automatically reset to block the card block 41 to prevent the card block 41 from rotating in the opposite direction, and the fixing of the mounting cover 2 can be completed, and the operation is more convenient. When it is necessary to remove the mounting cover 2, it is only necessary to push the mounting cover 2 upward and squeeze the pressing plate 44 to move upward so that the bottom surface of the card block 41 is higher than the top of the card plate 61, and then rotate the mounting cover 2 so that the two card blocks 41 are in the two card slots 3, and the mounting cover 2 can be removed downward.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Contents not described in detail in the specification belong to the prior art known to professional and technical personnel in this field.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic fire alarm device, comprising a mounting seat (1) and a mounting cover (2), characterized in that: The bottom surface of the mounting seat (1) is provided with a circular array of guide mechanisms, the bottom surface of the mounting seat (1) is provided with two opposite card slots (3), the top end of the mounting cover (2) is fixedly connected with two opposite card blocks (41), the surface of the mounting cover (2) is fixedly connected with two opposite guide plates (21), and the two guide plates (21) correspond to the two card blocks (41) respectively, and each of the card slots (3) is provided with a card connection mechanism for positioning the card block (41); The guide mechanism comprises a guide frame (53) slidably arranged on the bottom surface of the mounting seat (1); a second guide rod (52) fixedly connected to the surface of the mounting seat (1) is arranged above the guide frame (53); a first set plate (54) is elastically slidably arranged on the second guide rod (52), and the first set plate (54) is connected to the guide frame (53); The clamping mechanism comprises a sliding groove (42) provided in the clamping groove (3) and a pressure plate (44) elastically sliding in the sliding groove (42), and the clamping block (41) slides in the sliding groove (42) and contacts the bottom surface of the pressure plate (44), and a clamping plate (61) is elastically provided on the inner bottom wall of the sliding groove (42), and a side surface of the clamping plate (61) close to the clamping groove (3) is inclined, and the clamping block (41) is located on one side of the vertical surface of the clamping plate (61).

2. An automatic fire alarm device according to claim 1, characterized in that: A handle (22) is fixedly connected to the bottom end of the mounting cover (2), and two ends of the handle (22) correspond to two clamping blocks (41) respectively.

3. An automatic fire alarm device according to claim 1, characterized in that: The guide mechanism further comprises two first guide rods (51) arranged above the guide frame (53), and the two first guide rods (51) are respectively located on both sides of the second guide rod (52), one end of the two first guide rods (51) are both fixedly connected to the surface of the mounting seat (1), and the guide frame (53) is fixedly connected with second sleeve plates (56) respectively sleeved on the surfaces of the two first guide rods (51).

4. An automatic fire alarm device according to claim 3, characterized in that: Each of the first guide rods (51) is provided with a slide groove, and the inner wall of each of the second sleeve plates (56) is rotatably provided with a roller (57), and the roller (57) slides in the slide groove on the first guide rod (51).

5. The automatic fire alarm device according to claim 1, characterized in that: A tension spring (55) is fixedly connected between the first sleeve plate (54) and the mounting seat (1), and the tension spring (55) is sleeved on the surface of the second guide rod (52).

6. The automatic fire alarm device according to claim 1, characterized in that: A plurality of first compression springs (43) are fixedly connected to the upper surface of the compression plate (44), and the top ends of the first compression springs (43) are fixedly connected to the inner top wall of the sliding groove (42).

7. An automatic fire alarm device according to claim 1, characterized in that: The inner bottom wall of the sliding groove (42) is provided with a mounting groove (62), and the clamping plate (61) is slidably arranged in the mounting groove (62). The inner bottom wall of the mounting groove (62) is fixedly connected with a second compression spring (63), and the top end of the second compression spring (63) is connected to the bottom surface of the clamping plate (61).

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