CN210166894U

CN210166894U - Collision-proof device for fire detector

Info

Publication number: CN210166894U
Application number: CN201920768105.XU
Authority: CN
Inventors: 单兆宇
Original assignee: Zhong Xing Construction Group Co Ltd
Current assignee: Zhong Xing Construction Group Co Ltd
Priority date: 2019-05-25
Filing date: 2019-05-25
Publication date: 2020-03-20
Anticipated expiration: 2029-05-25

Abstract

The utility model discloses an anti-collision device of a fire detector, which comprises a shell seat and a shell cover in threaded connection with the bottom wall of the shell seat, and further comprises a protective cover sleeved outside the shell cover and two semi-spherical buffer balls oppositely arranged on the bottom wall of the protective cover, wherein the bottom wall of the shell cover is provided with a semicircular groove matched with the buffer balls, a plurality of air inlets are uniformly distributed on the side wall of the protective cover, the outer wall of the protective cover is provided with a buffer component at the air inlet, and the shell seat is provided with a connecting component fixedly connected with the protective cover; this fire detector has good buffering effect, prevents that the inside component of detector from damaging or misplacing under the striking, avoids influencing the testing result.

Description

Collision-proof device for fire detector

Technical Field

The utility model relates to a fire detector's technical field, in particular to fire detector's buffer stop.

Background

The fire detector is a device for exploring and finding fire in the field in a fire-fighting fire automatic alarm system, is a sensing organ of the system, and has the functions of monitoring whether a fire occurs in the environment, converting characteristic physical quantities of the fire, such as temperature, smoke, gas, radiation intensity and the like into electric signals once the fire occurs, and immediately acting to send alarm signals to a fire alarm controller.

The traditional Chinese patent with the authorization publication number of CN208141559U discloses an intelligent temperature-sensing fire detector, which comprises a hollow upper cover, a middle button at the bottom and an internal thermistor, wherein the bottom of the middle button is connected with a bottom plate, and the upper part of the middle button is buckled with the upper cover; the card positions the printing plate and the transition positioning plate; the upper surface of the printing plate is connected with a thermistor support plate, the thermistor support plate is provided with a hollow circular truncated cone-shaped support ring protruding upwards, the sensing head of the thermistor is exposed outside the support ring, and a sensing rod of the thermistor penetrates through the support ring to be connected with an internal circuit board and transmits a sensing signal outwards through the circuit board; the printing plate is provided with a bulb, the periphery of the bulb is surrounded by a partition wall, the upper part of the bulb is provided with a light guide column, and the light guide column extends upwards and is exposed out of the upper cover; the detector has the advantages of good sensing effect, convenient assembly and disassembly and reliable detection.

However, the above technical solutions have the following use limitations: because the fire detector mainly adopts hard connection, internal photoelectric elements are easy to be misplaced or damaged after collision, and the detection result is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fire detector's buffer stop, its advantage: this fire detector has good buffering effect, prevents that the inside component of detector from damaging or misplacing under the striking, avoids influencing the testing result.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a fire detector's buffer stop, includes shell seat and the cap of threaded connection on the shell seat diapire, still establishes the safety cover outside the cap and is hemispherical buffering ball double-phase relative setting on the diapire in the safety cover, be equipped with on the diapire of cap and cushion ball matched with semicircular groove, the equipartition is equipped with a plurality of air inlets on the lateral wall of safety cover, the outer wall of safety cover is located air inlet department and is equipped with the buffering subassembly, be equipped with coupling assembling and safety cover fixed connection on the shell seat.

Through the technical scheme, the protective cover is fixed on the bottom wall of the shell seat through the connecting assembly; when the protective cover is impacted, the protective cover tilts, the buffer ball rotates in the semicircular groove, and the semicircular groove is arranged to limit the movement of the buffer ball so as to avoid overlarge tilt angle of the protective cover; utilize the buffering subassembly simultaneously, play the cushioning effect to the impact force, reduced the dynamics that the cap was strikeed, prevent that interior component from taking place to damage or misplace under the striking, avoid influencing detection effect.

The utility model discloses further set up to: buffering subassembly is including surrounding a plurality of crashproof boards and buffer spring that set up at the protective cover outer wall and arrange along its direction of height, crashproof board sets up on the outer wall of protective cover to ground slope, buffer spring's one end and crashproof board's lower one end lateral wall fixed connection, buffer spring's the other end is fixed on the outer wall of protective cover, crashproof board's higher one end is articulated with the outer wall of protective cover.

Through above-mentioned technical scheme, when receiving the striking, buffer spring compression, and then anticollision board keeps away from articulated one end and removes to the guard shield inner wall, because buffer spring has good stretching force, and can realize the reseing of anticollision board, prevents that the cap from receiving the striking, causes internal element to damage or misplace, avoids influencing the testing result.

The utility model discloses further set up to: coupling assembling is including encircleing collar and the bolt of setting on the protective cover lateral wall, be equipped with a plurality of mounting holes along its circumference equipartition on the collar, be equipped with the screw hole corresponding with the mounting hole on the diapire of shell seat, the bolt is by supreme mounting hole, the threaded hole of inserting in proper order down.

According to the technical scheme, the mounting hole in the mounting ring is aligned to the threaded hole, then the bolt is inserted into the mounting hole, and the mounting ring can be fixed on the bottom wall of the shell base by rotating the bolt, so that the protection cover is fixed; this connected mode, simple structure makes things convenient for the dismouting.

The utility model discloses further set up to: and a cushion pad is arranged on the outer wall of the anti-collision plate.

Through above-mentioned technical scheme, the cushioning effect to the impact force has been strengthened in the setting of blotter, prevents that the cap from receiving the striking, avoids internal element to damage or misplace.

The utility model discloses further set up to: a plurality of reset springs are uniformly distributed on the groove wall of the semicircular groove, and one ends, far away from the groove wall of the semicircular groove, of the reset springs are fixed on the outer wall of the buffer ball.

Through above-mentioned technical scheme, receive the striking when the safety cover, when taking place the slope, the buffering ball is at the rotation in-process, and reset spring compresses, because reset spring has good flexible ability and reset ability, can pull back the buffering ball to normal condition, and then has realized the reseing of safety cover, avoids the cap to receive the striking, has improved the stability of internal elements working process.

The utility model discloses further set up to: the buffer ball is made of rubber materials.

Through above-mentioned technical scheme, because rubber has the effect of increase friction for the safety cover is receiving the striking, can increase the frictional force of buffering ball rotation process, avoids safety cover inclination too big.

The utility model discloses further set up to: the outer wall equipartition of cap is equipped with the inner wall fixed connection of a plurality of rubber pieces and safety cover.

Through above-mentioned technical scheme, the block rubber has the setting of good compressibility, blotter, has strengthened the cushioning effect to the impact force, prevents that the cap from receiving the striking, avoids internal element to damage or misplace.

The utility model discloses further set up to: and a reflective film is adhered to the outer wall of the buffer pad.

Through above-mentioned technical scheme, the setting of reflective membrane has the effect of sign, can remind people's position of safety cover, avoids the mistake to strike the safety cover, has improved the stability of the inside component working process of cap.

To sum up, the utility model discloses following beneficial effect has:

1. fixing the protective cover on the bottom wall of the shell base through a connecting assembly; when the protective cover is impacted, the protective cover tilts, the buffer ball rotates in the semicircular groove, and the semicircular groove is arranged to limit the movement of the buffer ball so as to avoid overlarge tilt angle of the protective cover; meanwhile, the buffer component is utilized to buffer the impact force, so that the impact force of the shell cover is reduced, internal elements are prevented from being damaged or dislocated under impact, and the detection effect is prevented from being influenced;

2. when the collision-proof shield is impacted, the buffer spring is compressed, and then one end of the collision-proof plate, which is far away from the hinge joint, moves towards the inner wall of the shield;

3. the setting of reflective membrane has the effect of sign, can remind people's position of safety cover, avoids the mistake to strike the safety cover, has improved the stability of the inside component working process of cap.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural view of a connecting assembly used to embody the present embodiment.

Fig. 3 is a schematic diagram of a partially enlarged structure for embodying a in fig. 2.

Reference numerals: 1. a housing base; 2. a shell cover; 3. a protective cover; 4. a buffer ball; 5. a semicircular groove; 6. an air inlet; 7. a buffer assembly; 71. an anti-collision plate; 72. a buffer spring; 8. a connecting assembly; 81. a mounting ring; 82. a bolt; 9. mounting holes; 10. a threaded hole; 11. a cushion pad; 12. a return spring; 13. a rubber block; 14. a light-reflecting film.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

an anti-collision device of a fire detector, referring to fig. 1, comprises a rectangular shell base 1, a screw rod on the lower surface of the shell base 1 is connected with a shell cover 2 (fig. 2), and an element is arranged between the inner wall of the shell cover 2 (fig. 2) and the lower surface of the shell base 1.

Referring to fig. 1 and 2, a protective cover 3 is sleeved outside a shell cover 2, two opposite buffer balls 4 are arranged on the inner bottom wall of the protective cover 3 along the length direction of the protective cover, the buffer balls 4 are arranged in a hemispherical shape, the buffer balls 4 are made of rubber materials, two semicircular grooves 5 matched with the buffer balls 4 are oppositely arranged on the outer bottom wall of the shell cover 2, and a plurality of air inlets 6 are uniformly distributed on the outer wall of the protective cover 3; the setting of air inlet 6 for detector internal element can normally work, and when suffering the collision, the bottom of safety cover 3 takes place to incline, and buffering ball 4 produces multi-directional displacement in semicircular groove 5 this moment, and semicircular groove 5 and buffering ball 4's cooperation plays limiting displacement to the multidirectional removal of safety cover 3, when preventing that the clamshell from receiving the striking, and the inside component of detector damages or misplaces under the striking, avoids influencing the testing result.

Referring to fig. 2, the inner wall of the protective cover 3 is provided with a plurality of rubber blocks 13 fixedly connected with the outer wall of the shell cover 2; because the rubber block 13 has good compressibility, wear resistance and elongation force, the impact force to the protection cover 3 plays a role in buffering, the shell cover 2 is prevented from shaking, and the detection result is prevented from being influenced.

Referring to fig. 2, the cushion ball 4 is made of rubber; buffering ball 4 is the rubber material, because rubber has the frictional effect of increase for safety cover 3 has increased the frictional force of buffering ball 4 rotation process when receiving the striking, avoids 3 inclination oversize of safety cover.

Referring to fig. 2, a plurality of return springs 12 are uniformly distributed on the side wall of the buffer ball 4 along the circumferential direction thereof, and one ends of the return springs 12 far away from the buffer ball 4 are fixed on the groove wall of the semicircular groove 5; buffering ball 4 is rotating the in-process, and reset spring 12 compresses, because reset spring 12 has good flexible ability and reset ability, can pull back buffering ball 4 to normal condition, and then has realized the reseing of safety cover 3, avoids cap 2 to receive the striking, has improved the stability of internal elements working process.

Referring to fig. 1, a buffer assembly 7 is arranged on the outer wall of the protective cover 3 at the air inlet 6, and a connecting assembly 8 is arranged at the top end of the protective cover 3 and fixedly connected with the bottom wall of the shell base 1; firstly, fixing the protective cover 3 on the lower surface of the shell seat 1 through a connecting assembly 8; when the protective cover 3 is impacted and inclined, the impact force is buffered by the buffer component 7, so that the impact force of the shell cover 2 (shown in figure 2) is reduced, and the internal elements are prevented from being damaged or dislocated under the impact; adopt the buffer stop that above-mentioned structure constitutes, have good buffering effect, prevent that the inside component of detector from damaging or misplacing under the striking, avoid influencing the testing result.

Referring to fig. 2, the connecting assembly 8 includes two mounting rings 81 and bolts 82 which are oppositely arranged on the side wall of the protective cover 3, a plurality of mounting holes 9 are uniformly distributed on the mounting rings 81 along the circumferential direction thereof, threaded holes 10 corresponding to the mounting holes 9 are arranged on the bottom wall of the shell base 1, and the bolts 82 are sequentially inserted into the mounting holes 9 and the threaded holes 10 from bottom to top; inserting the bolt 82 into the mounting hole 9, and rotating the bolt 82 to enable the mounting ring 81 to cling to the bottom wall of the shell base 1, so that the protection cover 3 is fixed on the shell base 1; this connected mode, simple structure makes things convenient for the dismouting.

Referring to fig. 1 and 3, the buffer assembly 7 includes a plurality of crash-proof plates 71 and buffer springs 72, which are disposed around the outer wall of the protective cover 3 and are arranged along the height direction thereof, the crash-proof plates 71 are disposed on the outer wall of the protective cover 3 in an inclined manner toward the ground, the higher end of the crash-proof plates 71 is hinged to the outer wall of the protective cover 3, the lower end of the crash-proof plates 71 faces the ground, one end of the buffer springs 72 is fixed to the side wall of the lower end of the crash-proof plates 71 facing the outer wall of the protective cover 3, and the other end of the buffer springs 72 is fixed to the; when the collision occurs, the buffer spring 72 is compressed, and then the end of the anti-collision plate 71 far away from the hinge moves towards the inner wall of the shield, because the buffer spring 72 has good stretching force, the anti-collision plate 71 can be reset, the shell cover 2 (shown in fig. 2) is prevented from being collided, internal elements are prevented from being damaged or dislocated, and the detection result is prevented from being influenced.

Referring to fig. 3, a cushion pad 11 is provided on an outer wall of the impact plate 71; the cushion pad 11 enhances the buffering effect on the impact force, prevents the shell cover 2 (figure 2) from being impacted, and avoids the damage or dislocation of the internal components.

Referring to fig. 3, a reflective film 14 is adhered to the outer wall of the cushion pad 11; the setting of reflective membrane 14 plays the effect of sign, reminds people to pay attention to the position of safety cover 3, avoids cap 2 (fig. 2) to receive the striking, has improved the stability of internal component working process.

The working process is as follows: when the protective cover 3 is impacted, the buffer spring 72 is compressed, and then one end, far away from the hinge joint, of the anti-collision plate 71 is close to the outer wall of the protective cover 3, and the buffer spring 72 is compressed by utilizing the extension tension of the buffer spring 72, so that the anti-collision plate 71 is reset; when the striking dynamics is great, the safety cover 3 takes place the slope, and buffering ball 4 utilizes reset spring 12 to realize the reseing of buffering ball 4 at semicircular groove 5 internal rotation, and then safety cover 3 resets, can prevent that cap 2 from receiving the striking, avoids internal element to damage or the dislocation.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a fire detector's buffer stop, includes shell seat (1) and cap (2) of threaded connection on shell seat (1) diapire, its characterized in that: still establish safety cover (3) and two relative settings that are hemispherical buffering ball (4) on the diapire in safety cover (3) outside cap (2) including the cover, be equipped with on the diapire of cap (2) with buffering ball (4) matched with semicircular groove (5), the equipartition is equipped with a plurality of air inlets (6) on the lateral wall of safety cover (3), the outer wall of safety cover (3) is located air inlet (6) and locates to be equipped with buffering subassembly (7), be equipped with coupling assembling (8) and safety cover (3) fixed connection on shell seat (1).

2. A fire detector collision avoidance device according to claim 1, wherein:

buffer unit (7) are including surrounding a plurality of crashproof boards (71) and buffer spring (72) that set up at protection cover (3) outer wall and arrange along its direction of height, crashproof board (71) set up on the outer wall of protection cover (3) to ground slope, the lower one end lateral wall fixed connection of one end and crashproof board (71) of buffer spring (72), the other end of buffer spring (72) is fixed on the outer wall of protection cover (3), the higher one end of crashproof board (71) is articulated with the outer wall of protection cover (3).

3. A fire detector collision avoidance device according to claim 2, wherein: coupling assembling (8) are including encircleing collar (81) and bolt (82) that set up on protecting cover (3) lateral wall, collar (81) are gone up and are equipped with a plurality of mounting holes (9) along its circumference equipartition, be equipped with on the diapire of shell seat (1) and screw hole (10) corresponding with mounting hole (9), bolt (82) are by lower supreme inserting mounting hole (9), screw hole (10) in proper order.

4. A fire detector collision avoidance device according to claim 2, wherein: and a buffer cushion (11) is arranged on the outer wall of the anti-collision plate (71).

5. A fire detector collision avoidance device according to claim 1, wherein: a plurality of reset springs (12) are uniformly distributed on the groove wall of the semicircular groove (5), and one ends, far away from the groove wall of the semicircular groove (5), of the reset springs (12) are fixed on the outer wall of the buffer ball (4).

6. A fire detector collision avoidance device according to claim 2, wherein: the buffer ball (4) is made of rubber materials.

7. A fire detector collision avoidance device according to claim 2, wherein: the outer wall equipartition of cap (2) is equipped with the inner wall fixed connection of a plurality of rubber blocks (13) and safety cover (3).

8. A fire detector collision avoidance device according to claim 4, wherein: a reflective film (14) is stuck on the outer wall of the buffer pad (11).