Flame detector

Abstract

The utility model discloses a flame detector, belongs to the optical detection technical field, said support subassembly includes support seat, rotator and a plurality of restricting member, said support seat is equipped with first jack post, said rotator includes longitudinal portion and transverse portion, said longitudinal portion is sleeved in said first jack post, said detection head is equipped with second jack post, said second jack post is equipped with a plurality of restricting members, said restricting member is equipped with a plurality of restricting members, said restricting member is equipped with a plurality of restricting members, said restricting member is equipped with a plurality of restricting members. The transverse part is arranged in the second shaft column, the limiting pieces are arranged between the longitudinal part and the first shaft column and between the transverse part and the second shaft column, the support base is fixedly connected with a building, the rotating body is connected with the first shaft column of the support base, then the detection head is connected with the transverse part of the rotating body, the detection head is rotated left and right, and the support base is fixedly connected with the building. The longitudinal part is driven to rotate around the first shaft column, the detection head is swung up and down, and the second shaft column is driven to rotate around the transverse part, so that after the detection head is fixed on a building, bidirectional angle adjustment of the detection head can still be carried out, and the monitoring range is ensured as much as possible.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical detection, and in particular relates to a flame detector. Background Art

[0002] When a substance burns, it produces smoke and heat, as well as visible or invisible light radiation that is not in the atmosphere. Flame detectors detect the presence of flames by detecting light of specific wavelengths in the air, and use the photoelectric effect to convert these specific wavelengths of light into electrical signals to detect the presence of flames. When the control system receives the alarm information from the flame detector, it will quickly start the extinguishing device and the sound and light alarm device.

[0003] Flame detectors are used in residential areas, hotels, shopping malls, exhibition halls, hospitals, biological laboratories and other places. Due to the frequent occurrence of electric vehicle fires and the densely parked vehicles in electric vehicle sheds, once a fire occurs, it may lead to dangerous situations such as explosions. In order to ensure the safety of people and property, flame detectors are installed for timely detection and alarm, which can ensure the smooth implementation of fire emergency plans.

[0004] However, since fixed flame detectors can ensure that flame monitoring can be performed without interference at a predetermined position, thereby improving the stability and accuracy of monitoring, most flame detectors currently on the market are fixed; however, after the flame detector is fixed on a wall or building, it is difficult to adjust the angle of the flame detector.

[0005] Therefore, how to solve the problem of the inconvenience of adjusting the angle of the flame detector is a technical problem that currently needs to be solved by those skilled in the art. Utility Model Content

[0006] In order to solve the problem that it is difficult to adjust the angle of the existing flame detector after it is fixed on a wall or a building, the utility model provides an arbitrary stop-rotation type flame detector with dual adjustment directions.

[0007] The technical solution of the utility model is:

[0008] The utility model discloses a flame detector, comprising a detection head and a bracket assembly, wherein the bracket assembly comprises a bracket seat, a rotating body and a plurality of limiting members, wherein a first shaft column is arranged on the bracket seat, the rotating body comprises a longitudinal portion and a transverse portion, the longitudinal portion is sleeved in the first shaft column, the detection head is provided with a second shaft column, the transverse portion is arranged in the second shaft column, and the limiting members are arranged between the longitudinal portion and the first shaft column and between the transverse portion and the second shaft column.

[0009] Furthermore, the bracket seat includes a first base and a second base, a connecting piece is provided in the first base, a connecting hole is provided at the bottom of the second base, the connecting piece is detachably connected to the connecting hole, and the first shaft column is provided on the surface of the second base.

[0010] Furthermore, the connecting member includes a rotating part and a connecting rod, a receiving groove and a through hole are provided in the first base, the rotating part is placed in the receiving groove, one end of the connecting rod is inserted into the through hole and fixedly connected to the rotating part, and the other end of the connecting rod is detachably connected to the connecting hole.

[0011] Furthermore, the first base is also provided with a plurality of through grooves, and the through grooves are located around the through hole.

[0012] Furthermore, a tightening piece is provided at the end of the first shaft column, and the tightening piece abuts against the longitudinal portion of the rotating body.

[0013] Furthermore, the first shaft column is also sleeved with a gasket, and the gasket abuts against the longitudinal portion of the rotating body.

[0014] Furthermore, the limiting member is a bushing or a notch.

[0015] The beneficial effects of the utility model are:

[0016] The shape structure of the bracket assembly of the traditional flame detector is changed. The bracket assembly includes a bracket seat, a rotating body and a plurality of limiting members. The bracket seat is provided with a first shaft column. The rotating body includes a longitudinal portion and a transverse portion. The longitudinal portion is sleeved in the first shaft column. The detection head is provided with a second shaft column. The transverse portion is arranged in the second shaft column. The limiting member is arranged between the longitudinal portion and the first shaft column and between the transverse portion and the second shaft column. The bracket seat is fixedly connected to the building. The rotating body is first connected to the first shaft column of the bracket seat, and then the detection head is connected to the transverse portion of the rotating body. The detection head is rotated left and right to drive the longitudinal portion to rotate around the first shaft column. The detection head is swung up and down to drive the second shaft column to rotate around the transverse portion. After the detection head is fixed on the building, the two-way angle adjustment of the detection head can still be performed, and the monitoring range is guaranteed as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0018] Figure 2 This is an exploded structural diagram of Example 1 of the utility model;

[0019] Figure 3 This is a structural diagram of the combined state of the first base and the connecting member of Example 1 of the utility model;

[0020] Figure 4 This is a structural diagram of the first base and the connecting member in an exploded state of Example 1 of the utility model;

[0021] Figure 5 This is an exploded structural diagram of Example 2 of the utility model;

[0022] Figure 6 This is an exploded structural diagram of Example 3 of the utility model;

[0023] Figure markings: 1. detection head, 11. second shaft column, 2. bracket assembly, 21. bracket seat, 211. first base, 2111. accommodating groove, 2112. through hole, 2113. through groove, 212. second base, 2121. first shaft column, 2122. connecting hole, 213. connecting piece, 2131. rotating part, 2132. connecting rod, 214. tightening piece, 215. gasket, 22. rotating body, 221. longitudinal part, 222. transverse part, 23. limiting piece. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] It should be noted that when a component is referred to as being "installed on", "provided on", "covered on", "sleeved on", or "locked on" another component, it can be directly on the other component or indirectly on the other component.

[0026] It should be understood that, in the description of the present utility model, “several” means two or more than two, unless otherwise clearly and specifically defined.

[0027] In addition, the orientations or positional relationships indicated by terms such as "inside", "upper", "between", "both sides", "one side", "top", "bottom", and "side" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] It should be noted that the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the features.

[0029] It should be noted that the "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. Among them, A and B can be singular or plural respectively.

[0030] Example 1

[0031] Please refer to Figure 1-Figure 4 The utility model provides a flame detector, including a detection head 1 and a bracket assembly 2, the bracket assembly 2 includes a bracket seat 21, a rotating body 22 and a plurality of limiting members 23, the bracket seat 21 is provided with a first shaft column 2121, the rotating body 22 includes a longitudinal portion 221 and a transverse portion 222, the longitudinal portion 221 is sleeved in the first shaft column 2121, the detection head 1 is provided with a second shaft column 11, the transverse portion 222 is arranged in the second shaft column 11, the limiting member 23 is arranged between the longitudinal portion 221 and the first shaft column 2121 and between the transverse portion 222 and the second shaft column 11; the bracket seat 21 It is responsible for fixing with the building, and the detection head 1 is connected to the bracket seat 21; the rotating body 22 is used to realize the horizontal rotation of the detection head 1, and the second shaft column 11 of the detection head 1 cooperates with the transverse part 222 of the rotating body 22 to realize the pitch angle adjustment of the detection head 1; the limiting member 23 is a sleeve, and the rotating body 22, the limiting member 23 and the shaft column are combined into a sleeve-type rotating shaft, so that the rotating body, the limiting member 23 and the shaft column interfere with each other, and torque is generated during rotation, and the torque value can be adjusted by the limiting member 23; because the torque value of the rotating shaft decays quickly, it can stay at the current angle after the angle is adjusted, and it is not easy to be blown by wind to change the current angle.

[0032] Furthermore, since the existing flame detector needs to be removed after being installed on the building, it is always necessary to use auxiliary tools such as screwdrivers, wrenches, electric drills, etc. to remove the flame detector, so it is necessary to design a structure that is convenient for disassembly and installation, as follows:

[0033] The bracket seat 21 includes a first base 211 and a second base 212 . A connecting piece 213 is provided in the first base 211 . A connecting hole 2122 is provided at the bottom of the second base 212 . The connecting piece 213 is detachably connected to the connecting hole 2122 . The first shaft column 2121 is provided on the surface of the second base 212 .

[0034] The connecting member 213 includes a rotating part 2131 and a connecting rod 2132. The first base 211 is provided with a accommodating groove 2111 and a through hole 2112. The rotating part 2131 is placed in the accommodating groove 2111. One end of the connecting rod 2132 penetrates into the through hole 2112 and is fixedly connected to the rotating part 2131. The other end of the connecting rod 2132 is detachably connected to the connecting hole 2122.

[0035] The first base 211 is further provided with three through slots 2113 , and the through slots 2113 are located around the through hole 2112 .

[0036] Combination Figure 2 and Figure 4 The connecting rod 2132 is a threaded rod, and the connecting hole 2122 is a threaded hole. First, screws are inserted into the through groove 2113 and the building to fix the first base 211 on the building, and then the connecting hole 2122 of the second base 212 fixed with the detection head 1 is aligned with the threaded rod, and the rotating part 2131 is rotated to connect and fix the connecting rod 2132 with the connecting hole 2122, so as to complete the quick and convenient detachable connection between the detection head 1 and the building, so that the detection head 1 can also be regularly disassembled for maintenance.

[0037] It is worth noting that if the building is a perforated plate structure, the first base 211 can also be installed at any position of the building, and the first base 211 can be quickly disassembled and installed by using screws and nuts.

[0038] Furthermore, a tightening member 214 is provided at the end of the first shaft column 2121, and the tightening member 214 abuts against the longitudinal portion 221 of the rotating body 22. The first shaft column 2121 is also sleeved with a gasket 215, and the gasket 215 abuts against the longitudinal portion 221 of the rotating body 22; Figure 2 The tightening member 214 is a sealing nut, and the rotating body 22 is further fixed by the gasket 215 and the tightening member 214 .

[0039] Example 2

[0040] The difference from Example 1 is that the second shaft column 11 at the end of the detection head 1 is designed as a circular hole, the transverse part 222 of the rotating body 22 is designed as a shaft column, the shaft column penetrates the limiting member 23 and the circular hole, and then the shaft column and the end of the detection head 1 are tightened with a nut.

[0041] Example 3

[0042] The difference from Example 2 is that the extension portion at the end of the detection head 1 is deleted and an angle code is used to fix the extension portion to the detection head 1 .

[0043] It is worth noting that when the limiting member 23 is a notch, it is arranged on a shaft column or a rotating body, and interference is generated through the notch, thereby generating torque during the rotation process.

[0044] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A flame detector, characterized in that: The invention comprises a detection head (1) and a support assembly (2), wherein the support assembly (2) comprises a support seat (21), a rotating body (22) and a plurality of limiting members (23), wherein a first shaft column (2121) is provided on the support seat (21), the rotating body (22) comprises a longitudinal portion (221) and a transverse portion (222), wherein the longitudinal portion (221) is sleeved in the first shaft column (2121), the detection head (1) is provided with a second shaft column (11), the transverse portion (222) is arranged in the second shaft column (11), and the limiting members (23) are arranged between the longitudinal portion (221) and the first shaft column (2121) and between the transverse portion (222) and the second shaft column (11).

2. The flame detector according to claim 1, characterized in that: The support seat (21) comprises a first base (211) and a second base (212); a connecting piece (213) is provided inside the first base (211); a connecting hole (2122) is provided at the bottom of the second base (212); the connecting piece (213) is detachably connected to the connecting hole (2122); and the first shaft column (2121) is provided on the surface of the second base (212).

3. The flame detector according to claim 2, characterized in that: The connecting member (213) comprises a rotating part (2131) and a connecting rod (2132); a receiving groove (2111) and a through hole (2112) are provided in the first base (211); the rotating part (2131) is placed in the receiving groove (2111); one end of the connecting rod (2132) penetrates into the through hole (2112) and is fixedly connected to the rotating part (2131); and the other end of the connecting rod (2132) is detachably connected to the connecting hole (2112).

4. The flame detector according to claim 3, characterized in that: The first base (211) is further provided with a plurality of through grooves (2113), and the through grooves (2113) are located around the through hole (2112).

5. The flame detector according to claim 4, characterized in that: A tightening member (214) is provided at the end of the first shaft column (2121), and the tightening member (214) abuts against the longitudinal portion (221) of the rotating body (22).

6. The flame detector according to claim 5, characterized in that: The first shaft column (2121) is also sleeved with a gasket (215), and the gasket (215) abuts against the longitudinal portion (221) of the rotating body (22).

7. The flame detector according to claim 6, characterized in that: The limiting member (23) is a shaft sleeve or a notch.

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