Nail special for assembling infrared correlation detector

Abstract

The utility model belongs to the technical field of infrared correlation detectors, and particularly relates to a nail special for assembling an infrared correlation detector. The mandrel penetrates into the sleeve column, the third section of the sleeve column is sleeved with the positioning hole of the U-shaped mounting base plate, then the mandrel is pulled to enable the clamping position on the mandrel to be mounted in the long groove in the sleeve column, the height of the third section of the sleeve column is consistent with the thickness of the U-shaped mounting plate, the bottom face of the second section of the sleeve column abuts against the U-shaped mounting plate, and it is guaranteed that the sleeve column is stably mounted; then the infrared light head is arranged on the first section of the sleeve column in a sleeving mode, the height of the first section of the sleeve column is consistent with the thickness of the infrared light head PCB, the top face of the second section of the sleeve column abuts against the bottom face of the infrared light head PCB, then the rivet sleeve is arranged on the mandrel in a sleeving mode and installed above the infrared light head PCB, and then the rivet sleeve is riveted through the punch; therefore, the assembly of the infrared correlation detector can be conveniently realized, the production efficiency is improved, and the problem that the infrared correlation detector cannot be produced on a large scale is solved.

Description

[Technical field]

[0001] The utility model belongs to the technical field of infrared radiation detectors, and in particular relates to a special nail for assembling infrared radiation detectors. [Background technology]

[0002] Infrared radiation detectors are one of the important components of the physical protection system and have been very mature and widely used. However, with the further development of the current physical protection market, the demand for infrared radiation detectors with excellent performance has increased significantly, so there is a need to improve their production efficiency.

[0003] During the production process, in the infrared beam detector, when the infrared transmitting and receiving units are assembled, the infrared light head PCB board needs to be fixed on the U-shaped mounting pad. In the prior art, when fixing the infrared light head PCB board, it is usually connected to the U-shaped mounting pad by setting a plastic column sleeve, and it needs to be set on the inner side of the shell of the infrared transmitting and receiving unit. The plastic column sleeve is hollow and is set under the infrared light head PCB board. The operator cannot put his hand into this position to operate, and the overall assembly of the product is difficult, which hinders the improvement of product production efficiency and is not conducive to mass production of the product. [Utility Model Content]

[0004] The utility model provides a special nail for assembling an infrared radiation detector to solve the problems in the prior art of low product production efficiency and difficulty in mass production due to difficulty in overall assembly of infrared radiation detector products.

[0005] The utility model provides a special nail for assembling an infrared radiation detector, and the technical solution is:

[0006] A special nail for assembling an infrared radiation detector, comprising:

[0007] The mandrel comprises a straight section and a conical section, the straight section is cylindrical as a whole and is provided with an annular groove near the top, the bottom of the straight section is connected to the top of the conical section, the conical section is truncated cone as a whole, the top area of ​​the conical section is the same as the bottom area of ​​the straight section, and the bottom area of ​​the conical section is larger than the top area of ​​the conical section;

[0008] The rivet sleeve is in the shape of a truncated cone, the top area of ​​the rivet sleeve is smaller than the bottom area, and a first mounting hole for mounting the mandrel is provided at the center of the rivet sleeve;

[0009] The sleeve column comprises, from top to bottom, the first section, the second section, the third section and the fourth section, the diameter of the second section is larger than the diameters of the first section and the third section, a second mounting hole for fitting the core shaft is provided at the center of the sleeve column, the second mounting hole comprises a straight hole section and a tapered hole section, and a long groove is provided from bottom to top, the end of the long groove ends in the third section of the sleeve column, the first section is used for assembly with the infrared light head PCB board, the height of the first section is consistent with that of the infrared light head PCB board, and the third section is used for assembly with the positioning hole on the U-shaped mounting plate; the rivet sleeve is used for fitting and riveting onto the core shaft after the first section is assembled with the infrared light head PCB board.

[0010] Furthermore, there are four long grooves in total, which are evenly distributed on the wall of the second mounting hole.

[0011] Furthermore, the diameters of the first section, the third section and the fourth section of the sleeve are equal.

[0012] Furthermore, a transition section is provided between the third section and the fourth section. The transition section is conical, with a smaller top and a larger bottom, and the bottom has the same diameter as the fourth section.

[0013] Further, the tapered hole segment includes a first tapered hole segment and a second tapered hole segment.

[0014] Furthermore, the height of the third section of the sleeve column is consistent with the thickness of the U-shaped mounting plate.

[0015] The beneficial effect is that when assembling the infrared radiometer, you only need to insert the core shaft into the sleeve column, then insert the third section of the sleeve column into the positioning hole of the U-shaped mounting pad, and then pull the core shaft to make the card position on the core shaft be installed into the long groove in the sleeve column, after the infrared light head is installed on the first section of the sleeve column, the rivet sleeve is installed on the core shaft, and then it is riveted with a punch, and the infrared radiometer can be conveniently assembled. The assembly process is simple and the installation structure is stable, which is conducive to improving the assembly efficiency of the product and solves the problem that the infrared radiometer is difficult to mass produce.

Brief Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the assembly structure of the infrared radiation detector of Example 1 provided by the utility model;

[0017] Figure 2 It is a schematic diagram of the core shaft structure of Example 1 provided by the utility model;

[0018] Figure 3 It is a schematic diagram of the riveting sleeve structure of Example 1 provided by the utility model;

[0019] Figure 4 It is a cross-sectional view of the sleeve column of Example 1 provided by the utility model;

[0020] Figure 5It is a bottom view of the sleeve column of Example 1 provided by the utility model;

[0021] Figure 6 This is a schematic diagram of the pre-installed structure of the sleeve column and the mandrel of Example 1 provided by the utility model;

[0022] Figure 7 This is a schematic diagram of the pre-installed structure of the special nail for assembling the infrared radiation detector provided in Example 1 of the utility model.

[0023] 1. Infrared beam detector housing; 2. Infrared light head PCB board; 3. Special nails for assembling infrared beam detector; 301. Mandrel; 302. Rivet sleeve; 303. Sleeve column; 4. U-shaped mounting plate. [Specific implementation method]

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings.

[0025] Specific embodiment 1 of a special nail for assembling an infrared radiation detector provided by the utility model:

[0026] The present embodiment provides a special nail for assembling an infrared radiation detector, comprising a core shaft, a rivet sleeve, and a sleeve column.

[0027] like Figure 2 The core shaft includes a straight section and a tapered section. The straight section is cylindrical as a whole and has an annular groove near the top. The bottom of the straight section is connected to the top of the tapered section. The tapered section is truncated cone-shaped as a whole. The top of the tapered section has the same area as the bottom of the straight section, and the area of ​​the bottom of the tapered section is larger than the area of ​​the top of the tapered section.

[0028] like Figure 3 The rivet sleeve is used for riveting the mandrel and the sleeve column. The rivet sleeve is in a truncated cone shape, and the top area is smaller than the bottom area. A first mounting hole is provided at the center of the rivet sleeve for sleeve mounting the mandrel. The edges of the top and bottom surfaces of the rivet sleeve are chamfered.

[0029] like Figure 4 , Figure 5, the sleeve column is composed of the first section, the second section, the third section and the fourth section from the top to the bottom, the diameters of the first section, the third section and the fourth section are equal, the diameter of the second section is larger than the diameters of the first section and the third section, and a transition section is provided between the third section and the fourth section, the transition section is conical, the top is smaller and the bottom is larger, and the bottom is equal to the diameter of the fourth section, and a second mounting hole is provided at the center of the sleeve column for sleeve core shaft, the second mounting hole includes a straight hole section and a tapered hole section, the tapered hole section includes a first tapered hole section and a second tapered hole section, and a long groove is provided from the bottom to the top, the end of the long groove ends at the third section of the sleeve column, and there are four long grooves in total, which are evenly distributed on the wall of the second mounting hole. In this embodiment, the sleeve column is made of nylon. In other embodiments, two long grooves can be provided on the tapered hole section, and the two long grooves are symmetrically distributed on the tapered hole section, or one, three, five or more long grooves can be provided, and the specific number of long grooves provided depends on the size of the sleeve, and when the number of long grooves is greater than one, the long grooves can be selected to be evenly distributed on the tapered hole section.

[0030] like Figure 1 , Figure 7 The first section is used to assemble with the infrared light head PCB board. The infrared light head PCB board is provided with corresponding assembly holes. The height of the first section is consistent with the infrared light head PCB board. The third section is used to assemble with the positioning hole on the U-shaped mounting plate; the rivet sleeve is used to be installed and riveted on the mandrel after the first section is assembled with the infrared light head PCB board.

[0031] The installation method of the special nails for assembling infrared beam detectors is as follows:

[0032] like Figure 1 , Figure 6 , Figure 7 As shown, first install the U-shaped mounting pad in the infrared beam detector housing, then insert the core shaft into the sleeve column to complete the pre-installation of the sleeve column and the core shaft, then put the third section of the sleeve column into the positioning hole of the U-shaped mounting pad, and then pull the core shaft to make the card position on the core shaft installed in the long groove in the sleeve column, the height of the third section of the sleeve column is consistent with the thickness of the U-shaped mounting plate, the bottom surface of the second section of the sleeve column is against the U-shaped mounting plate to ensure the stable installation of the sleeve column, and then put the infrared light head PCB board on the first section of the sleeve column, the height of the first section of the sleeve column is consistent with the thickness of the infrared light head PCB board, the top surface of the second section of the sleeve column is against the bottom surface of the infrared light head PCB board, and then the rivet sleeve is put on the core shaft and installed above the infrared light head PCB board, and then riveted with a punch to complete the assembly of the infrared transmitting and receiving unit.

[0033] Specific embodiment 2 of a special nail for assembling an infrared radiation detector provided by the utility model:

[0034] The only difference between this embodiment and Embodiment 1 is that the diameters of the first section, the third section and the fourth section of the sleeve are equal, the diameter of the sleeved first end is different from the diameter of the third section, and the specific diameters of the first section and the second section are determined according to the size of the assembly hole on the infrared light head PCB board and the size of the positioning hole on the U-shaped mounting pad.

[0035] Specific embodiment 3 of a special nail for assembling an infrared radiation detector provided by the utility model:

[0036] The only difference between this embodiment and Embodiment 1 is that no transition section is separately provided between the third section and the fourth section.

Claims

1. A special nail for assembling an infrared radiation detector, characterized in that: include: The mandrel comprises a straight section and a conical section, wherein the straight section is cylindrical as a whole and is provided with an annular groove near the top, the bottom of the straight section is connected to the top of the conical section, the conical section is truncated cone as a whole, the top area of ​​the conical section is the same as the bottom area of ​​the straight section, and the bottom area of ​​the conical section is larger than the top area of ​​the conical section; A rivet sleeve, the rivet sleeve is in a truncated cone shape, the top area of ​​the rivet sleeve is smaller than the bottom area, and a first mounting hole for sleeve-mounting the mandrel is provided at the center of the rivet sleeve; The sleeve column comprises a first section, a second section, a third section and a fourth section from top to bottom, the diameter of the second section is larger than the diameters of the first section and the third section, a second mounting hole for fitting a core shaft is provided at the center of the sleeve column, the second mounting hole comprises a straight hole section and a tapered hole section, and a long groove is provided from bottom to top, the end of the long groove ends in the third section of the sleeve column, the first section is used for assembly with an infrared light head PCB board, the height of the first section is consistent with that of the infrared light head PCB board, and the third section is used for assembly with a positioning hole on a U-shaped mounting plate; the rivet sleeve is used for fitting and riveting onto the core shaft after the first section is assembled with the infrared light head PCB board.

2. The special nail for assembling infrared radiation detectors according to claim 1 is characterized in that: There are four long grooves in total, which are evenly distributed on the wall of the second mounting hole.

3. The special nail for assembling infrared radiation detectors according to claim 2 is characterized in that: The first section, the third section and the fourth section of the sleeve have equal diameters.

4. The special nail for assembling infrared radiation detectors according to claim 3 is characterized in that: A transition section is provided between the third section and the fourth section. The transition section is conical, with a smaller top and a larger bottom, and the bottom has the same diameter as the fourth section.

5. The special nail for assembling infrared radiation detectors according to claim 4 is characterized in that: The tapered hole segment includes a first tapered hole segment and a second tapered hole segment.

6. The special nail for assembling infrared radiation detectors according to claim 5 is characterized in that: The height of the third section of the sleeve column is consistent with the thickness of the U-shaped mounting plate.

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