A connection assembly for a smoke alarm

Abstract

The utility model discloses a connection assembly of smoke alarm, including locating top seat, sealed pipe, smoke alarm main part, sealed pipe sets up in locating top seat bottom side, sealed pipe bottom is fixedly connected with smoke alarm main part top side through -going, locating top seat top is connected with locating rod in symmetry, locating top seat top is equipped with the line through -going and opens the mouth, has guaranteed under the condition of not using screw connection installation, smoke alarm main part will not shake up and down the situation, can according to the demand of installation, the height of flexible adjustment locating top seat makes its bottom installation smoke alarm main part stretch out the distance of ceiling bottom and adjust, in the process of installation construction, do not need to carry a large number of punch tool, bolt accessory to carry out the damage to the ceiling in the room to the connection structure of clamping limit is located in ceiling top, avoided the situation of being deliberately disassembled by people, and the safety greatly improves.

Description

TECHNICAL FIELD

[0001] The utility model relates to smoke alarm technology field, concretely related to a kind of connection assembly of smoke alarm. BACKGROUND

[0002] Smoke alarm is to realize fire prevention by monitoring the concentration of smoke, internally adopt ion type smoke sensor, ion type smoke sensor is a kind of advanced technology, stable and reliable sensor, is widely used in various fire alarm systems, performance is far superior to gas resistance class fire alarm.

[0003] In prior art, smoke alarm is often fixed on the top of house by screw during installation, but when smoke alarm needs to be disassembled and changed due to failure, it needs to be installed by screw again, which is very inconvenient, application No.202320628953.7 discloses a smoke alarm convenient to install, which comprises an alarm body and a base, the top of the alarm body is provided with the base, two spring grooves are formed in the inside of the alarm body, a first spring is installed in the inside of the two spring grooves, an L-shaped clamping block is connected to one side of the first spring, a limiting block is connected to one side of the L-shaped clamping block, a spring sheet is connected to one end of the limiting block, a limiting ring is installed at the bottom of the base, four clamping grooves are formed at the bottom of the base, and a screw is threadedly connected to one side of the base;The stability of the above device connected by spring is insufficient, it is necessary to form an installation hole on the ceiling of the top of building and form a screw hole on the lower surface of the ceiling at the same time, which affects the appearance of the ceiling, and the installation structure is arranged outside, which is easily disassembled by non-workers, increasing the safety hazard.

[0004] For the problems in the related art, there is no effective solution at present. UTILITY MODEL CONTENTS

[0005] For the problems in the related art, the utility model provides a connection assembly of smoke alarm to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] A connection assembly of smoke alarm, comprising a positioning top seat, a sealing pipe and a smoke alarm body, the sealing pipe is arranged at the bottom side of the positioning top seat, the bottom end of the sealing pipe is fixedly connected with the top side of the smoke alarm body in penetration, the top of the positioning top seat is symmetrically connected with positioning rods, the top of the positioning top seat is provided with wire passing openings in penetration, and the wire passing openings are connected with the sealing pipe and the inner cavity of the smoke alarm body in penetration respectively.

[0008] As preferred, the sealing tube comprises a base plate, an outer threaded tube, the outer threaded tube is fixedly sleeved with the base plate at the bottom end, and the base plate is fixedly connected with the top side of the smoke alarm main body.

[0009] As preferred, the outer threaded tube is fixedly connected with a limiting ring at the top end, the limiting ring has a hole diameter smaller than the inner hole diameter of the outer threaded tube, a threaded ring is sleeved with matching threads on the outer wall of the outer threaded tube, and a sealing washer is embeddedly fixed at the top side edge of the threaded ring.

[0010] As preferred, the positioning rod comprises an expansion bolt and a locking nut, the locking nut is symmetrically connected with the outer wall of the expansion bolt through matching threads, and the expansion bolt is movably penetrated into the inside of the positioning top seat.

[0011] As preferred, a rectangular groove is excavated in the middle of the bottom side of the positioning top seat, a connecting through hole is penetratingly arranged at one side of the rectangular groove, an adjusting knob is arranged in the inside of the connecting through hole, and a positive and negative toothed lead screw is connected with the left side of the inner wall of the rectangular groove through a bearing.

[0012] As preferred, a guide rod is arranged at one side of the positive and negative toothed lead screw, the guide rod is fixedly connected between the both ends and the inner wall of the rectangular groove, and a moving block is symmetrically sleeved with the outer side of the guide rod.

[0013] As preferred, a clamping block is fixedly connected with the bottom side of the moving block, the clamping block is located between the inner walls of the limiting ring, a lead screw nut is connected with the inside of the moving block through a bearing, and the lead screw nut is matchedly threadedly connected with the positive helical groove and the negative helical groove on the positive and negative toothed lead screw respectively, and the inside of the adjusting knob is fixedly connected with one end of the positive and negative toothed lead screw.

[0014] As preferred, a trapezoidal clamping groove is excavated in the inside of the clamping block, the clamping block is clampedly connected with the inside of the limiting ring through the trapezoidal clamping groove, a strong magnet is embeddedly fixed on the inner wall of the trapezoidal clamping groove, and the strong magnet is fixedly attracted with the inner wall of the limiting ring through magnetic conduction.

[0015] The utility model discloses a smoke alarm main body fixing device, which comprises a smoke alarm main body, a base plate, an outer threaded tube, a limiting ring, a threaded ring, a sealing washer, a positioning top seat, a positioning rod, a positive and negative toothed lead screw, a guide rod, a moving block, a clamping block, a lead screw nut and an adjusting knob. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 is a general structure schematic diagram of a connection assembly of a smoke alarm according to an embodiment of the present application;

[0018] Figure 2 is a sealing tube appearance structure schematic diagram of a connection assembly of a smoke alarm according to an embodiment of the present application;

[0019] Figure 3 is a positioning top seat bottom structure schematic diagram of a connection assembly of a smoke alarm according to an embodiment of the present application;

[0020] Figure 4 is an internal structure schematic diagram of a clamping block of a connection assembly of a smoke alarm according to an embodiment of the present application.

[0021] In the drawings:

[0022] 1, positioning top seat; 2, sealing tube; 3, smoke alarm main body; 4, positioning rod; 5, wire through port; 6, bottom disc; 7, external threaded tube; 8, limiting ring; 9, strong magnet; 10, internal threaded ring; 11, sealing washer; 12, expansion bolt; 13, locking nut; 14, rectangular groove; 15, connecting through hole; 16, adjusting knob; 17, positive and negative toothed screw; 18, guide rod; 19, moving block; 20, clamping block; 21, trapezoidal clamping groove. DETAILED DESCRIPTION

[0023] In order to further illustrate the embodiments, the present application provides drawings which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operation principle of the embodiments in cooperation with the related description of the specification. With reference to these contents, those skilled in the art should understand other possible embodiments and advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to the embodiments of the present application, a connection assembly of a smoke alarm is provided.

[0025] Embodiment one

[0026] As Figures 1-4As shown, a connecting assembly for a smoke alarm according to an embodiment of the present invention includes a positioning top seat 1, a sealing tube 2, and a smoke alarm body 3. The sealing tube 2 is disposed on the bottom side of the positioning top seat 1, and its bottom end is fixedly connected to the top side of the smoke alarm body 3. Positioning rods 4 are symmetrically connected to the top of the positioning top seat 1. A wire feeding port 5 is provided through the top of the positioning top seat 1, which is connected to the sealing tube 2 and the inner cavity of the smoke alarm body 3 respectively. The sealing tube 2 includes a base plate 6 and an external threaded tube 7. The bottom end of the external threaded tube 7 is fixedly fitted through the base plate 6. The base plate 6 is fixedly connected to the top side of the smoke alarm body 3. A limiting ring 8 is fixedly connected to the top of the external threaded tube 7. The diameter of the limiting ring 8 is smaller than the inner diameter of the external threaded tube 7. An internal threaded ring 10 is threadedly fitted on the outer wall of the external threaded tube 7. A sealing gasket 11 is embedded and fixed on the top edge of the 10. The positioning top seat 1 is installed on the ceiling surface of the room. A hole is made in the ceiling, and the smoke alarm body 3 can be passed through the hole made in the ceiling through the external threaded tube 7. Under the action of the fixed connection limit ring 8 and the movable threaded connection internal thread ring 10, the internal thread ring 10 can be flexibly screwed according to the thickness of the ceiling, so that the internal thread ring 10 and the limit ring 8 clamp the ceiling from top to bottom, thereby clamping and positioning the smoke alarm body 3. This ensures that the smoke alarm body 3 will not shake up and down when it is not installed with screws. The internal thread ring 10 can cover the gap between the external threaded tube 7 and the hole made in the ceiling, avoiding the situation where the hole cannot be accurately fitted to the external threaded tube 7, which would reduce the aesthetics of the ceiling.

[0027] Example 2

[0028] like Figures 1-4 As shown, a connection assembly for a smoke alarm according to an embodiment of the present invention includes a positioning top seat 1, a sealing tube 2, and a smoke alarm body 3. The sealing tube 2 is disposed on the bottom side of the positioning top seat 1, and its bottom end is fixedly connected to the top side of the smoke alarm body 3. Positioning rods 4 are symmetrically connected to the top of the positioning top seat 1. A wire transmission port 5 is provided through the top of the positioning top seat 1, which is connected to the inner cavity of the sealing tube 2 and the smoke alarm body 3 respectively. The positioning rods 4 include expansion bolts 12 and locking nuts 13. The locking nuts 13 are symmetrically threaded and connected to the outer wall of the expansion bolts 12. The expansion bolts 12 movably penetrate the interior of the positioning top seat 1 and are connected and fixed to the concrete roof surface of the building through the expansion bolts 12. The positioning top seat 1 is sleeved on the outside of the expansion bolts 12, and the locking nuts 13 are screwed onto the outer wall of the expansion bolts 12 to clamp and limit the positioning top seat 1 vertically. The height of the positioning top seat 1 can be flexibly adjusted according to the installation requirements, so that the distance of the smoke alarm body 3 installed at the bottom extends out of the bottom of the ceiling can be adjusted.

[0029] Example 3

[0030] As Figures 1-4 shown in the smoke alarm connecting assembly, the sealing pipe 2 is arranged at the bottom side of the positioning top seat 1, the bottom end of the sealing pipe 2 is fixedly connected with the top side of the smoke alarm main body 3, the top of the positioning top seat 1 is symmetrically connected with the positioning rod 4, the top of the positioning top seat 1 is provided with the wire through hole 5, the wire through hole 5 is connected with the inner cavities of the sealing pipe 2 and the smoke alarm main body 3, the middle part of the bottom side of the positioning top seat 1 is provided with the rectangular groove 14, one side of the rectangular groove 14 is provided with the connecting through hole 15, the connecting through hole 15 is provided with the adjusting knob 16, the left side of the inner wall of the rectangular groove 14 is connected with the positive and negative screw rod 17 through a bearing, one side of the positive and negative screw rod 17 is provided with the guide rod 18, the both ends of the guide rod 18 are fixedly connected with the inner wall of the rectangular groove 14, the guide rod 18 and the positive and negative screw rod 17 are symmetrically provided with the moving block 19, the bottom side of the moving block 19 is fixedly connected with the clamping block 20, the clamping block 20 is located between the inner walls of the limiting ring 8, the inside of the moving block 19 is connected with the screw nut through a bearing, and is matched with the positive helical groove and the reverse helical groove on the positive and negative screw rod 17 through thread connection, the inside of the adjusting knob 16 is fixedly connected with one end of the positive and negative screw rod 17, the inside of the clamping block 20 is provided with the trapezoidal clamping groove 21, the clamping block 20 is connected with the inside of the limiting ring 8 through the trapezoidal clamping groove 21, the trapezoidal clamping groove 21 is embedded with the strong magnet 9, the strong magnet 9 is fixedly connected with the inner wall of the limiting ring 8 through magnetic attraction, by rotating the adjusting knob 16, the adjusting knob 16 drives the positive and negative screw rod 17 to rotate, under the action of the guide rod 18 guiding and limiting the clamping block, the moving block 19 provided outside the guide rod 18 is driven by the positive and negative screw rod 17 to move outward or inward, the clamping block 20 can be clamped outside the inner wall of the limiting ring 8 through the trapezoidal clamping groove 21, in the process of installation and construction, a large number of punching tools and bolt accessories do not need to be carried to damage the ceiling in the room, and the clamping and limiting connecting structure is located at the top of the ceiling, so that the situation of being intentionally disassembled is avoided, and the safety is greatly improved.

[0031] In summary, by means of the above technical scheme of the utility model, when the device is used, the expansion bolts 12 are connected and fixed with the concrete roof surface of the top of the house, the positioning top seat 1 is sleeved outside the expansion bolts 12, and the positioning top seat 1 is clamped and limited up and down by rotating and screwing the locking nuts 13 with the outer wall of the expansion bolts 12, the positioning top seat 1 is installed on the roof surface in the room, holes are formed on the suspended ceiling, the smoke alarm main body 3 can be penetrated into the holes formed on the suspended ceiling of the room through the outer threaded pipe 7, under the action of the fixedly connected limiting ring 8 and the movably threaded connected inner threaded ring 10, the inner threaded ring 10 can be flexibly rotated according to the thickness of the suspended ceiling, the inner threaded ring 10 and the limiting ring 8 clamp the suspended ceiling up and down, the clamping block 20 is clamped on the outer side of the inner wall of the limiting ring 8 by rotating and adjusting the knob 16, driving the forward and reverse lead screw 17 to rotate, guiding and limiting the clamping block by the guide rod 18, driving the moving block 19 outside the guide rod 18 to move outward or inward with the clamping block 20, and the clamping block 20 is clamped on the outer side of the inner wall of the limiting ring 8.

[0032] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A connecting assembly for a smoke alarm, comprising a positioning top seat (1), a sealing tube (2), and a smoke alarm body (3), characterized in that, The sealing tube (2) is located on the bottom side of the positioning top seat (1). The bottom end of the sealing tube (2) is fixedly connected to the top side of the smoke alarm body (3). The positioning top seat (1) is symmetrically connected with positioning rods (4). The top of the positioning top seat (1) is provided with a wire transmission port (5). The wire transmission port (5) is connected to the sealing tube (2) and the inner cavity of the smoke alarm body (3) respectively.

2. The connection assembly for a smoke alarm according to claim 1, characterized in that, The sealing tube (2) includes a chassis (6) and an external threaded tube (7). The bottom end of the external threaded tube (7) is fixedly fitted through the chassis (6). The chassis (6) is fixedly connected to the top side of the smoke alarm body (3).

3. The connection assembly for a smoke alarm according to claim 2, characterized in that, The top end of the external threaded tube (7) is fixedly connected to a limiting ring (8). The diameter of the limiting ring (8) is smaller than the inner diameter of the external threaded tube (7). An internal threaded ring (10) is fitted on the outer wall of the external threaded tube (7) with matching threads. A sealing gasket (11) is embedded and fixed on the top edge of the internal threaded ring (10).

4. The connection assembly for a smoke alarm according to claim 3, characterized in that, The positioning rod (4) includes an expansion bolt (12) and a locking nut (13). The locking nut (13) is symmetrically matched with the threaded connection to the outer wall of the expansion bolt (12). The expansion bolt (12) moves through the interior of the positioning top seat (1).

5. The connection assembly for a smoke alarm according to claim 4, characterized in that, A rectangular groove (14) is provided in the middle of the bottom side of the positioning top seat (1). A connecting through hole (15) is provided on one side of the rectangular groove (14). An adjustment knob (16) is provided inside the connecting through hole (15). A positive and negative thread screw (17) is connected to the left side of the inner wall of the rectangular groove (14) through a bearing.

6. The connection assembly for a smoke alarm according to claim 5, characterized in that, The positive and negative threaded screw (17) is provided with a guide rod (18) on one side. The two ends of the guide rod (18) are fixedly connected to the inner wall of the rectangular groove (14). The guide rod (18) and the positive and negative threaded screw (17) are symmetrically fitted with moving blocks (19).

7. The connection assembly for a smoke detector according to claim 6, characterized in that, The bottom side of the moving block (19) is fixedly connected to a clamping block (20), which is located between the inner walls of the limiting ring (8). The moving block (19) is connected to a lead screw nut through a bearing, and is threadedly connected to the positive spiral groove and the negative spiral groove on the positive and negative thread screws (17), respectively. The inner side of the adjusting knob (16) is fixedly connected to one end of the positive and negative thread screws (17).

8. The connection assembly for a smoke alarm according to claim 7, characterized in that, The clamping block (20) has a trapezoidal slot (21) on its inner side. The clamping block (20) is engaged with the inner side of the limiting ring (8) through the trapezoidal slot (21). A strong magnet (9) is embedded and fixed on the inner wall of the trapezoidal slot (21). The strong magnet (9) is magnetically attracted and fixed to the inner wall of the limiting ring (8).

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