Wavelength division collimation detector

Abstract

The utility model discloses a wavelength division collimation detector, relates to the technical field of wavelength division collimation detectors, and aims to solve the problem that when internal elements of an existing wavelength division collimation detector are installed, the connection compactness of the internal elements is insufficient. The inner cavity is installed in the metal outer pipe body, a second rubber cushion layer is arranged on the circle of the lower side of the inner wall of the inner cavity, a protruding buckle block is arranged on one side of the second rubber cushion layer, and the protruding buckle block and the inner wall of the metal outer pipe body are integrally formed. A first rubber body cushion layer is arranged on a circle of the upper side of the inner wall of the inner cavity, the first inward-deviated rubber strips are installed in the first rubber body cushion layer, the number of the first inward-deviated rubber strips is multiple, and second inward-deviated rubber strips are arranged on one sides of the multiple first inward-deviated rubber strips; and the plurality of first inwards-deviated rubber strips and the second inwards-deviated rubber strips are integrally formed with the first rubber body cushion layer in a hot melting manner.

Description

Technical Field

[0001] The utility model relates to the technical field of wavelength division collimation detectors, in particular to a wavelength division collimation detector. Background Art

[0002] The wavelength division collimation detector detects the signal efficiently.

[0003] For example, the announcement number is CN213877605U, and the name of the Chinese authorized patent is (a wavelength division collimation detector assembly without a glass tube), including: a metal outer tube, a filter glass, a self-focusing lens and a dual fiber. The top opening size of the metal outer tube is 2.8mm, and the bottom opening size is 2.2mm. The filter glass is fixed to the front end of the self-focusing lens by gluing, and the dual fiber coupling is fixed to the tail of the self-focusing lens. The upper section of the inner part of the metal outer tube is provided with a fastening channel with an inner diameter of 1.8mm. The top of the fastening channel is provided with a glue chamfer with a size of 0.3mm. The self-focusing lens is inserted from the bottom of the metal outer tube and extends upward to the front end of the metal outer tube. The dual fiber is clamped and fixed through the fastening channel. The inner side of the lower end of the metal outer tube is provided with a glue feeding channel with a length of 4.5mm. There is no need to use a glass tube to fix the dual fiber through the fastening channel, so fewer parts are used and the cost is low. The assembly is simple and efficient. The top of the metal outer tube is a straight through hole without steps, which will not get stuck with the filter glass. The glue feeding channel is long, has a large pull-out force and good reliability.

[0004] However, when installing internal components of the existing wavelength division collimation detector, the internal component connection has the problem of insufficient compactness; therefore, it does not meet the existing needs. In this regard, we propose a wavelength division collimation detector. Utility Model Content

[0005] The utility model aims to provide a wavelength division collimation detector to solve the problem of insufficient compactness of internal component connection when installing internal components of the existing wavelength division collimation detector mentioned in the background art.

[0006] To achieve the above object, the utility model provides the following technical solution: a wavelength division collimation detector, comprising: a metal outer tube body, the front end face of the metal outer tube body is provided with an output terminal, the rear end face of the metal outer tube body is provided with a post-installation connection terminal, the rear end face of the post-installation connection terminal is provided with a signal connection circuit, and one end of the signal connection circuit is fixedly connected to the post-installation connection terminal;

[0007] Also includes:

[0008] An inner cavity body is installed inside the metal outer tube body, a circle of the lower inner wall of the inner cavity is provided with a second colloid cushion layer, a side of the second colloid cushion layer is provided with a protruding buckle block, and the protruding buckle block is formed integrally with the inner wall of the metal outer tube body, and a circle of the upper inner wall of the inner cavity is provided with a first colloid cushion layer;

[0009] A first inner rubber strip is installed inside the first colloid cushion layer. There are a plurality of first inner rubber strips, and a second inner rubber strip is arranged on one side of each of the first inner rubber strips. The first inner rubber strips and the second inner rubber strips are integrally formed with the first colloid cushion layer by hot-melt.

[0010] Preferably, an extended dual-fiber collimator is disposed inside the inner cavity, a connection block is disposed in a circle below the outer wall of the extended dual-fiber collimator, and the connection block is formed integrally with the extended dual-fiber collimator.

[0011] Preferably, a filter glass is provided on the front end surface of the extended dual-fiber collimator.

[0012] Preferably, an inner connector is provided at one end of the rear-installed connecting terminal, the inner connector is installed inside the inner cavity, and the inner connector is fixedly connected to the rear-installed connecting terminal.

[0013] Preferably, the second colloid cushion layer is connected to the inner wall of the metal outer tube body by hot-melt connection.

[0014] Preferably, the first colloid cushion layer is connected to the inner wall of the metal outer tube body by hot-melt connection.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model arranges a first colloid cushion layer, a second colloid cushion layer and a raised snap-fit ​​block on the inner wall of the metal outer tube body, and a connecting block on the outer wall of the lengthened dual-fiber collimator, and arranges a second colloid cushion layer, so that the friction force of the second colloid cushion layer 105 improves the tightness of the connection between the inner connector 10201 and the metal outer tube body 100, and the first inner biased rubber strip 10401 and the second inner biased rubber strip 10402 arranged on the end face of the metal outer tube body 104 can provide bilateral opposite friction forces for the end face of the lengthened dual-fiber collimator 200 internally, further improving the stability of the internal component fixation, and the raised snap-fit ​​block and the connecting block effectively provide a limit for the position installation of the internal component, thereby avoiding the problem of insufficient compactness of the internal component connection when the internal components of the existing wavelength division collimation detector are installed. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the internal structure of the metal outer tube body of the utility model;

[0019] Figure 3 This is a schematic diagram of the partial structure of the first colloid cushion layer of the utility model;

[0020] Figure 4 It is a partial enlarged structural schematic diagram of A of the utility model;

[0021] In the figure: 100, metal outer tube body; 101, output terminal; 102, connection terminal after installation; 10201, internal connection terminal; 103, signal connection line; 104, first colloid cushion layer; 10401, first inner bias rubber strip; 10402, second inner bias rubber strip; 105, second colloid cushion layer; 106, raised buckle block; 200, extended dual-fiber collimator; 201, connection block; 300, filter glass. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1

[0024] See also Figure 1-4 The utility model provides an embodiment: a wavelength division collimation detector, comprising: a metal outer tube body 100, the front end face of the metal outer tube body 100 is provided with an output terminal 101, the rear end face of the metal outer tube body 100 is provided with a post-installation connection terminal 102, the rear end face of the post-installation connection terminal 102 is provided with a signal connection line 103, and one end of the signal connection line 103 is fixedly connected to the post-installation connection terminal 102;

[0025] Also includes:

[0026] The inner cavity 100-1 is installed inside the metal outer tube body 100. A second colloid cushion layer 105 is arranged on a circle on the lower side of the inner wall of the inner cavity 100-1. A protruding buckle block 106 is arranged on one side of the second colloid cushion layer 105. The protruding buckle block 106 is formed integrally with the inner wall of the metal outer tube body 100. A first colloid cushion layer 104 is arranged on a circle on the upper side of the inner wall of the inner cavity 100-1.

[0027] The first inner rubber strip 10401 is installed inside the first colloid cushion layer 104. There are several first inner rubber strips 10401. One side of each of the first inner rubber strips 10401 is provided with a second inner rubber strip 10402. The first inner rubber strips 10401 and the second inner rubber strips 10402 are formed integrally with the first colloid cushion layer 104 by hot melting.

[0028] The provision of the raised snap block 106 also provides a limit for the position of the internal components. The provision of the first inner biased rubber strip 10401 and the second inner biased rubber strip 10402 can provide bilateral opposing friction forces for the end faces of the internal extended dual-fiber collimator 200, thereby improving the stability of the component connection.

[0029] Example 2

[0030] See also Figure 2 An extended dual-fiber collimator 200 is arranged inside the inner cavity 100-1, a connection block 201 is arranged in a circle below the outer wall of the extended dual-fiber collimator 200, and the connection block 201 is formed integrally with the extended dual-fiber collimator 200, a filter glass 300 is arranged on the front end face of the extended dual-fiber collimator 200, an inner connector 10201 is arranged at one end of the rear connecting terminal 102, the inner connector 10201 is installed in the inner cavity 100-1, the inner connector 10201 is fixedly connected to the rear connecting terminal 102, the second colloid cushion layer 105 is hot-melt connected to the inner wall of the metal outer tube body 100, and the first colloid cushion layer 104 is hot-melt connected to the inner wall of the metal outer tube body 100.

[0031] The first colloid cushion layer 104 and the second colloid cushion layer 105 are both connected to the metal outer tube body 100 by heat melting, so as to improve the stability of the colloid connection.

[0032] Working principle: the extended dual-fiber collimator 200 is installed inside the metal outer tube body 100, and is connected by the buckle connection of the raised buckle block 106 and the connecting block 201, so that the extended dual-fiber collimator 200 is more stably fixed inside the metal outer tube body 100. A second colloid cushion layer 105 is arranged between the inner connector 10201 and the inner wall of the metal outer tube body 100. The friction force of the second colloid cushion layer 105 can improve the tightness of the connection between the inner connector 10201 and the metal outer tube body 100. At the same time, the first inner biased rubber strip 10401 and the second inner biased rubber strip 10402 arranged on the end face of the metal outer tube body 104 can provide bilateral opposite friction forces for the end face of the extended dual-fiber collimator 200 internally, thereby further improving the stability of the internal component fixation.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A wavelength division collimation detector, comprising a metal outer tube body (100), wherein the front end face of the metal outer tube body (100) is provided with an output terminal (101), the rear end face of the metal outer tube body (100) is provided with a post-installation connection terminal (102), the rear end face of the post-installation connection terminal (102) is provided with a signal connection circuit (103), and one end of the signal connection circuit (103) is fixedly connected to the post-installation connection terminal (102); Features: Also includes: An inner cavity (100-1) is installed inside the metal outer tube body (100), a second colloid cushion layer (105) is arranged around the lower side of the inner wall of the inner cavity (100-1), a protruding buckle block (106) is arranged on one side of the second colloid cushion layer (105), and the protruding buckle block (106) is formed integrally with the inner wall of the metal outer tube body (100), and a first colloid cushion layer (104) is arranged around the upper side of the inner wall of the inner cavity (100-1); A first inner rubber strip (10401) is installed inside the first colloid cushion layer (104), and a plurality of the first inner rubber strips (10401) are provided, and a second inner rubber strip (10402) is provided on one side of the plurality of the first inner rubber strips (10401), and the plurality of the first inner rubber strips (10401) and the second inner rubber strips (10402) are formed integrally with the first colloid cushion layer (104) by hot melting.

2. A wavelength division collimation detector according to claim 1, characterized in that: An extended dual-fiber collimator (200) is arranged inside the inner cavity (100-1), a connection block (201) is arranged in a circle below the outer wall of the extended dual-fiber collimator (200), and the connection block (201) and the extended dual-fiber collimator (200) are formed in one piece.

3. A wavelength division collimation detector according to claim 2, characterized in that: A filter glass (300) is provided on the front end surface of the extended dual-fiber collimator (200).

4. The wavelength division collimation detector according to claim 1, characterized in that: An inner connector (10201) is provided at one end of the rear-mounted connecting terminal (102); the inner connector (10201) is installed inside the inner cavity (100-1); and the inner connector (10201) is fixedly connected to the rear-mounted connecting terminal (102).

5. The wavelength division collimation detector according to claim 1, characterized in that: The second colloid cushion layer (105) is connected to the inner wall of the metal outer tube body (100) by hot melting.

6. The wavelength division collimation detector according to claim 1, characterized in that: The first colloid cushion layer (104) is connected to the inner wall of the metal outer tube body (100) by hot melting.

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