CN216055275U

CN216055275U - Detector shell fragment structure

Info

Publication number: CN216055275U
Application number: CN202122688787.3U
Authority: CN
Inventors: 黄岭; 周彬; 胡仕林; 张景乐
Original assignee: Guanghedian Technology Guangdong Co ltd
Current assignee: Guanghedian Technology Guangdong Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-03-15
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a detector spring plate structure, which mainly solves the problems that a traditional detector jack plugging structure is difficult to disassemble and maintain, and poor contact between a base and a detection part can occur after plugging for many times. The structure comprises a base, a contact elastic sheet and a detector electric contact sheet, wherein the base is provided with an elastic sheet mounting mechanism and an elastic sheet mounting groove, the contact elastic sheet is mounted on the elastic sheet mounting mechanism through a screw assembly and clamped in the elastic sheet mounting groove, and the contact elastic sheet is prevented from being exposed; wherein, the detector and the base are rotationally matched to enable the electric contact piece of the detector to be clamped with the contact spring piece to realize electric connection. Through the design, the utility model mainly solves the problems of high design cost and poor contact of the elastic sheet after repeated disassembly and assembly of the traditional detector elastic sheet by utilizing the elastic sheet type contact electric connection mode on the premise of not increasing the whole volume of the detector base and the assembly difficulty. Therefore, the method is suitable for popularization and application.

Description

Detector shell fragment structure

Technical Field

The utility model belongs to the technical field of fire safety, and particularly relates to a detector spring plate structure.

Background

At present, in the field of fire fighting equipment, most equipment structures are in the form of detectors and bases, for example, temperature detectors and smoke detectors are important components of fire alarm systems and are the most used components in the fire alarm systems. Because current smoke detector all designs for the form of base with the detector, acquires power and signal through the shell fragment on the base, so to the shell fragment performance requirement on the base is very high. In order to increase the hardness and the contact area of the elastic sheet, most manufacturers design the elastic sheet in a thickening mode, and the design mode is high in cost; also, manufacturers design the elastic sheet into a bending mode, but the elastic sheet needs to be disassembled and assembled for many times during installation and later-stage detection, and the elastic sheet is easy to deform, so that the problems that the detector cannot be normally used and the like are caused by difficult installation and disassembly and even poor contact. Therefore, it is very necessary to provide a detector spring structure to reduce the design cost while ensuring the power supply and signal acquisition of the smoke detector.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a detector spring plate structure, which mainly solves the problems that the traditional detector spring plate is high in design cost and poor in contact with the spring plate after being disassembled and assembled for many times.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a detector elastic sheet structure comprises a base, a contact elastic sheet and a detector electric contact sheet, wherein the base is provided with an elastic sheet mounting mechanism and an elastic sheet mounting groove, the contact elastic sheet is mounted on the elastic sheet mounting mechanism through a screw assembly and clamped into the elastic sheet mounting groove, and the contact elastic sheet is prevented from being exposed; wherein, the detector and the base are rotationally matched to enable the electric contact piece of the detector to be clamped with the contact spring piece to realize electric connection.

Further, in the utility model, the contact elastic sheet comprises a contact clamping part and an extension section which is integrally formed with the contact clamping part; the extension section is matched with the screw assembly to install the contact elastic sheet on the elastic sheet installation mechanism.

Further, in the present invention, the detector electrical contact is integrated on the circuit board of the smoke detector and extends from the bottom of the smoke detector.

Furthermore, in the present invention, the contact clamping portion of the contact spring piece includes a lower contact spring piece and an upper contact spring piece integrally bent with the lower contact spring piece, and the lower contact spring piece and the upper contact spring piece are designed in parallel.

Further, in the utility model, the lower contact elastic sheet is bent and formed with a first upper protrusion and a second upper protrusion; the height of the first upper bulge is lower than that of the second upper bulge; a lower bulge is formed on the upper contact elastic sheet in a bending way; the lower protrusion is positioned between the first upper protrusion and the second upper protrusion.

Furthermore, in the utility model, the elastic piece mounting mechanism is also provided with an elastic piece supporting block, the outline of the elastic piece supporting block is matched with that of the lower contact elastic piece, when the contact elastic piece is installed, the lower contact elastic piece is propped against the elastic piece supporting block, and the upper contact elastic piece is propped against the lower part of the elastic piece mounting groove; when the contact clamping part is installed in the elastic piece installation groove, the contact clamping part is supported and limited by the common cooperation of the elastic piece installation groove and the elastic piece supporting block.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the utility model designs the spring piece mounting grooves on the base respectively, then designs a spring piece mounting mechanism to match with the spring piece mounting grooves correspondingly, and when the contact spring piece is assembled, the contact spring piece is firstly mounted on the spring piece mounting mechanism and then is integrally mounted in the spring piece mounting groove. Therefore, through the structural design different from the prior art, the situation that the contact failure is caused by deformation of the elastic sheet of the detector in the process of installing and later-stage detection of the detector is avoided.

(2) The utility model designs the overall shape of the contact elastic sheet, the contact elastic sheet is divided into an elastic sheet clamping part and an extension section, the contact elastic sheet is formed by adopting a bending process, and the upper contact elastic sheet and the lower contact elastic sheet are formed with bulges, so that the contact elastic sheet can be better matched with an elastic sheet mounting mechanism and a screw assembly, and meanwhile, the contact between the detector electric contact sheet and the contact elastic sheet is more reliable.

(3) According to the utility model, the cover body of the elastic piece mounting mechanism is also provided with the elastic piece supporting block, when the mounting of the contact elastic piece is completed, the lower contact elastic piece is propped against the elastic piece supporting block, and the upper contact elastic piece is propped against the lower part of the elastic piece mounting groove; when the elastic sheet mounting groove is filled, the contact clamping part is limited by the common matching of the elastic sheet mounting groove and the elastic sheet supporting block. Therefore, after the elastic sheet mounting mechanism and the contact elastic sheet are arranged in the elastic sheet mounting groove, the stability of the contact elastic sheet can be improved, and the protection effect of the contact elastic sheet is further enhanced.

Drawings

Fig. 1 is a schematic diagram of an explosive structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic sectional view along the direction a-a in fig. 2.

Fig. 4 is a schematic cross-sectional view taken along the direction B-B in fig. 2.

Fig. 5 is a schematic structural view of the contact spring of the present invention.

Fig. 6 is a schematic cross-sectional view illustrating a circuit board according to an embodiment of the utility model when the circuit board is snapped into contact with the spring.

Wherein, the names corresponding to the reference numbers are:

1-base, 2-contact spring, 3-spring mounting groove, 7-screw, 8-gasket, 9-bolt, 10-spring mounting mechanism, 12-spring support block, 13-bolt mounting groove, 14-detector electrical contact, 201-spring clamping part, 202-extension section, 203-lower contact spring, 204-upper contact spring, 205 a-first upper bump, 205 b-second upper bump, 206-lower bump.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Examples

As shown in fig. 1 to 6, the detector spring plate structure disclosed by the utility model comprises a base 1, a contact spring plate 2 and a detector electric contact plate 14, wherein the base 1 is provided with a spring plate mounting mechanism and a spring plate mounting groove 3, the contact spring plate 2 is mounted on the spring plate mounting mechanism 10 through a screw assembly and is clamped in the spring plate mounting groove 3, so that the contact spring plate 2 is prevented from being exposed; wherein, the detector is rotationally matched with the base to enable the detector electric contact piece 14 to be tightly clamped with the contact spring piece 2 to realize electric connection.

In this embodiment, the base and the spring plate mounting mechanism can be made of plastic parts and can be obtained by an integral molding process. The bottom of the base 1 is provided with a notch, and the elastic piece mounting groove 4 is arranged in the notch.

In the present invention, the contact spring piece 2 includes a contact clamping portion 201, and an extension section 202 integrally formed with the contact clamping portion 201; the extension 202 cooperates with the screw assembly to mount the contact spring to the spring mounting mechanism. The contact clamping portion 201 of the contact spring 2 includes a lower contact spring 203 and an upper contact spring 204 integrally bent with the lower contact spring 203. A first upper protrusion 205a and a second upper protrusion 205b are bent and formed on the lower contact spring 203; when the probe electric contact 12 is rotated to be caught in the contact spring piece 2, the probe electric contact 14 passes through the first upper protrusion 205a and then passes through the second upper protrusion 205b, and contact conduction is achieved by the second upper protrusion 205 b. In order to facilitate the probe electric contact 12 to pass through the first upper protrusion 205a, the height of the first upper protrusion 205a is lower than that of the second upper protrusion 205b during design and manufacture. Similarly, the upper contact spring is bent to form a lower protrusion 206; the lower protrusion 206 is located between the first upper protrusion 205a and the second upper protrusion 205 b. When installing detector circuit part and base like this, realize the lock through conventional card income, rotation form, rotatory back that targets in place, the electric contact on the detector circuit board directly blocks in the contact clamping part 201, contacts detector electric contact 14 through upper and lower contact shell fragment and realizes switching on. And the contact is more compact due to the staggered upper and lower bulges.

The shape of the extension is adapted to the shape of the spring mounting mechanism 10 so as to be able to be placed in the spring mounting mechanism 10. fig. 2 shows an extension design similar to an "L" (which can be formed by a bending process) with a through hole at one side for matching with a screw assembly.

In the present invention, the screw assembly is substantially the same as the prior art, including a screw 7 provided with a washer 8, and a bolt 9 engaged with the screw. In this embodiment, the screw 7 penetrates the extending section 202 to be matched with the bolt 9, at this time, the gasket 8 and the bolt 9 are respectively located above and below the extending section 202, the bolt placing groove 13 for fixing the position of the bolt 9 is formed in the assembling groove 12, the bolt 9 is placed in the bolt placing groove 13, and then the screw 7 is tightened to fix the contact dome on the dome mounting mechanism 10.

As another preferred embodiment of the utility model, as shown in fig. 2, still be equipped with shell fragment supporting shoe 12 on the shell fragment installation mechanism 10, this shell fragment supporting shoe 12 profile and lower contact shell fragment 203 adaptation, when packing into the contact shell fragment, lower contact shell fragment 203 will support on shell fragment supporting shoe 12, then fix at shell fragment installation mechanism 10, shell fragment supporting shoe 12 and shell fragment clamping part 201 together pack into in shell fragment mounting groove 4, rely on shell fragment supporting shoe 12 and shell fragment mounting groove 4 to cooperate jointly to carry on spacing and firm to shell fragment clamping part 201.

As another preferred embodiment of the present invention, the back of the elastic piece mounting mechanism 10 can be provided with some anti-slip stripes (as shown in fig. 4) to improve the anti-slip performance of the whole base, so that the base can be better installed on the roof.

As another preferred embodiment of the present invention, when the base is assembled with the contact spring, the contact spring is first installed in the spring installation mechanism, and then the screw assembly is screwed (the screw passes through the through hole on the extension section 202 of the contact spring 2), so that the contact spring is assembled with the spring installation mechanism 10, and the lower contact spring is also abutted against the spring support block. And the elastic sheet clamping part 201 enters the elastic sheet mounting groove along the same way, thus completing the assembly of the base and the elastic sheet.

When the smoke detector or the temperature-sensitive detector is subsequently installed, the base is fixed on the installation position, the screw is unscrewed, then the signal wire is wound on the screw and screwed, finally the detector is installed on the base, and after the detector is installed in place, the electric contact piece of the detector is in good contact with the elastic piece, so that normal communication of signals can be realized.

Through the design, on the premise of not increasing the whole size of the detector base and the assembly difficulty, the problem that the traditional plug-in contact is unstable and reliable is solved by using the electric connection mode of the elastic sheet type contact, great convenience is provided for the installation and later detection of the detector, the manufacturing cost of the elastic sheet is reduced, and the elastic sheet is effectively protected. Thus, the present invention provides substantial features and improvements over the prior art.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.

Claims

1. A detector elastic sheet structure is characterized by comprising a base (1), a contact elastic sheet (2) and a detector electric contact sheet (14), wherein the base (1) is provided with an elastic sheet mounting mechanism and an elastic sheet mounting groove (3), the contact elastic sheet (2) is mounted on the elastic sheet mounting mechanism (10) through a screw assembly and clamped into the elastic sheet mounting groove (3), and the contact elastic sheet (2) is prevented from being exposed; wherein, the detector is rotationally matched with the base to enable the detector electric contact piece (14) to be clamped with the contact spring piece (2) to realize electric connection.

2. A probe spring structure according to claim 1, characterized in that the contact spring (2) comprises a contact clamping portion (201), and an extension section (202) integrally formed with the contact clamping portion (201); the extension section (202) is matched with the screw assembly to install the contact spring piece on the spring piece installation mechanism.

3. A detector spring structure according to claim 2, characterized in that the detector electrical contact (14) is integrated on the circuit board of the smoke detector and extends from the bottom of the smoke detector.

4. A probe spring structure according to claim 3, characterized in that the contact clamping portion (201) of the contact spring (2) comprises a lower contact spring (203) and an upper contact spring (204) integrally bent with the lower contact spring (203), and the lower contact spring and the upper contact spring are designed in parallel.

5. The probe spring structure according to claim 4, wherein the lower contact spring (203) is formed with a first upper protrusion (205a) and a second upper protrusion (205b) by bending; the height of the first upper projection (205a) is lower than that of the second upper projection (205 b); a lower bulge (206) is formed on the upper contact spring piece in a bending way; the lower protrusion (206) is positioned between the first upper protrusion (205a) and the second upper protrusion (205 b).

6. The detector spring structure according to claim 5, wherein the spring mounting mechanism (10) is further provided with a spring support block (12), the profile of the spring support block (12) is adapted to the lower contact spring (203), when the contact spring is installed, the lower contact spring (203) will abut against the spring support block (12), and the upper contact spring (204) is abutted by the lower portion of the spring mounting groove (3); when the elastic piece is arranged in the elastic piece mounting groove, the elastic piece mounting groove (3) and the elastic piece supporting block (12) are matched together to support and limit the contact clamping part (201).