CN114694991A - Assembling method of closed type annunciator - Google Patents
Assembling method of closed type annunciator Download PDFInfo
- Publication number
- CN114694991A CN114694991A CN202011589320.7A CN202011589320A CN114694991A CN 114694991 A CN114694991 A CN 114694991A CN 202011589320 A CN202011589320 A CN 202011589320A CN 114694991 A CN114694991 A CN 114694991A
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- China
- Prior art keywords
- silica gel
- reed
- sleeve
- flexible
- bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 86
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000000741 silica gel Substances 0.000 claims abstract description 40
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 229920000742 Cotton Polymers 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 2
- 244000273256 Phragmites communis Species 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/005—Apparatus or processes specially adapted for the manufacture of electric switches of reed switches
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention discloses an assembling method of a closed type annunciator, which comprises the following steps: 1) constructing a bracket for fixing the reed switch, and installing the reed switch forming the annunciator on the bracket; 2) constructing a flexible cushion containing a metal wire, inserting pins of the reed pipe into the flexible cushion, and communicating the pins of the reed pipe through the metal wire in the flexible cushion; 3) extending the metal wires in the flexible pad along the same radial direction and connecting the metal wires with the conducting wires; 4) sleeving the sleeves outside the support provided with the reed pipe and the flexible gaskets at two ends for fixing the reed pipe, then respectively injecting liquid silica gel into the cavities in the sleeves at two ends, wherein the liquid silica gel is injected for multiple times, the thickness in the sleeve does not exceed 3mm each time, the liquid silica gel is not injected once, and the liquid silica gel can be injected again only after standing for more than 24 hours at normal temperature until the liquid silica gel is full, and forming sealed silica gel gaskets at two ends of the sleeve to obtain the liquid-phase-free reed pipe. The assembling method can be assembled and finished only by a plurality of parts, and has the advantages of easy assembly, easy control and high qualification rate.
Description
Technical Field
The invention relates to the technical field of reed switch application equipment, in particular to an assembling method of a closed annunciator.
Background
The dry reed pipe is a passive electronic switch element with contact, and has the advantages of simple structure, small size and easy control. Normally, two leaves made of special material in the glass tube are separated. When magnetic substance is near the glass tube, under the action of magnetic force line of magnetic field, the two reeds in the tube are magnetized and mutually attracted and contacted, and then the reeds are attracted together, so that the circuit connected with the node is communicated. After the external magnetic force disappears, the two reeds are separated due to the elasticity of the reeds, and the circuit is disconnected. Therefore, as a line switching device controlled by a magnetic field signal, a reed switch can be installed in a guide rod to be used as a signaler.
The existing method for installing the reed switch on the guide rod is to directly wrap the reed switch welded with a lead by using capacitance paper, fix and form the reed switch by a cotton thread, then assemble the reed switch in the guide rod, finally inject epoxy resin into the guide rod, use the reed switch wrapped with the capacitance paper as a signaler and integrally fix the reed switch in the guide rod. However, the guide rod is often used in severe environments such as high-magnitude vibration, low temperature and high temperature, and a signal device (a reed switch wrapped with capacitance paper) in the guide rod is easily deformed due to vibration or the influence of thermal expansion and cold contraction (mainly epoxy resin, especially epoxy resin is hardened after low temperature and has high hardness), and especially the deformation of the reed switch is easily caused, and the signal device product is easily deformed due to performance reduction or even failure in environmental tests and machine use. In addition, two reed switches are arranged in the guide rod, so that the situation is easier to occur, the annunciator in the guide rod cannot normally operate, the service life of the annunciator in the guide rod is seriously influenced, and the rejection rate is extremely high.
Disclosure of Invention
The invention aims to provide an assembling method of a closed type annunciator, which is convenient to operate, easy to install and convenient to manufacture.
The invention is realized by the following technical scheme: a method of assembling an enclosed signal comprising the steps of:
(1) constructing a bracket for fixing the reed switch, and installing the reed switch forming the annunciator on the bracket;
(2) constructing a flexible cushion containing a metal wire, inserting pins of the reed pipe into the flexible cushion, and communicating the pins of the reed pipe through the metal wire in the flexible cushion;
(3) extending the metal wires in the flexible pad along the same radial direction and connecting the metal wires with the conducting wires;
(4) sleeving the sleeves outside the support provided with the reed pipe and the flexible gaskets at two ends for fixing the reed pipe, then respectively injecting liquid silica gel into the cavities in the sleeves at two ends, wherein the liquid silica gel is injected for multiple times, the thickness in the sleeve does not exceed 3mm each time, the liquid silica gel is not injected once, and the liquid silica gel can be injected again only after standing for more than 24 hours at normal temperature until the liquid silica gel is full, and forming sealed silica gel gaskets at two ends of the sleeve to obtain the liquid-phase-free reed pipe.
The working principle of the technical scheme is that the bracket is used for fixing the two reed switches, so that the reed switches are not influenced by each other; the flexible pads at the two ends fix the pins of the reed pipes, the metal wires are arranged in the flexible pads, and the pins of the two reed pipes can be connected through the metal wires in the flexible pads when being fixed on the flexible pads, so that the flexible pads protect the pins of the reed pipes and avoid the deformation of the pins; the two reed switches are completely sealed in the sleeve by the outermost sleeve to protect the sleeve, so that the reed switches are prevented from being adversely affected by the external environment; the silica gel layer is tightly fixed inside the sleeve with the flexible pad at both ends to realize the fixed to the tongue tube, keep the stability of tongue tube in the sleeve. The pins of the two reed pipes extend out from the upper part of the sleeve, and the same connecting wire facilitates the connection of an external power line when the annunciator is arranged in the guide rod.
The closed annunciator comprises a sleeve arranged in a guide rod, wherein a support is arranged in the sleeve, two reed pipes are fixedly arranged on the support, and flexible pads are arranged at two ends of the support; pins at two ends of the reed pipe extend out of the support and are fixed in flexible cushions at two ends, and metal wires for connecting the two reed pipe pins are arranged in the flexible cushions; the sleeve both ends still are provided with the silica gel layer of fixed flexible pad, and the wire is installed on the silica gel layer of upper end, and the wire in the flexible pad all extends to sleeve upper portion to it is connected with the wire to pass the silica gel layer on upper portion.
In order to better implement the method of the invention, further, in the step (1), the bracket is composed of a support tube in the middle and fixing plates at two ends, the fixing plates at two ends are provided with two through holes for fixing the reed pipe, and two ends of the reed pipe are respectively inserted into the through holes of the fixing plates at two ends of the bracket; the free surface of the fixing plate is tightly attached to the flexible pad.
In order to better implement the method of the invention, further, in the step (1), the reed pipes are distributed on two sides of the support pipe of the bracket, and the two reed pipes are axisymmetrical with the central axis of the support pipe.
In order to better implement the method of the present invention, further, in the step (2), the metal wire in the lower flexible pad passes through the support tube of the bracket and extends to the upper portion, passes through the upper flexible pad and the silica gel layer and is connected with the lead, and the metal wire in the upper flexible pad passes through the upper silica gel layer and is connected with the lead.
In order to better implement the method of the present invention, further, in the step (4), through holes are respectively formed at two ends of the sleeve, and an adjusting device capable of adjusting the position of the sleeve in the guide rod is respectively disposed in the through holes.
In order to better implement the method of the invention, further, the adjusting device comprises a clamping plug clamped in the through hole at the end part of the sleeve, cotton threads are fixed on the clamping plug, and the cotton threads extend out of the through hole at the end part of the sleeve.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the assembling method, the signaler consisting of the two reed pipes is in a fully-closed structure through the matching of the structures such as the sleeve, the support, the flexible pad containing the metal wire, the silica gel layer and the like, so that the position fixation of the reed pipes is ensured, the closed components of the reed pipes are isolated from the outside, the influence of the environment such as external vibration, temperature and the like on the reed pipes is avoided, the reliability of the signaler product in use is greatly improved, and the problems that the performance is reduced and the faults are easy to occur in the test and use process in the traditional assembling mode are solved;
(2) the assembly method can be assembled by only a plurality of parts, is easy to assemble, does not need complex auxiliary equipment for tools, can be assembled by hand, and can be quickly operated by related operators, thereby being easy to popularize;
(3) the assembly method can ensure that the components of the annunciator are integrated, is easy to control, has high qualification rate and low labor intensity, can save cost and improve efficiency, has high reliability, and is suitable for wide popularization and application.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is an exploded perspective view of an assembled close-form annunciator in accordance with the present invention;
FIG. 2 is a cross-sectional view of the internal structure of the assembled close-type annunciator of the present invention;
FIG. 3 is a schematic diagram of an assembled closed annunciator of the present invention.
Wherein: the device comprises a sleeve, a support, a flexible pad, a reed pipe, a silica gel layer, a lead and a regulating device, wherein the sleeve is 1, the support is 2, the flexible pad is 3, the reed pipe is 4, the silica gel layer is 5, and the lead is 6 and the regulating device is 7.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
the embodiment provides an assembling method of a closed type annunciator, which comprises the following steps:
(1) constructing a bracket for fixing the reed switch, and installing the reed switch forming the annunciator on the bracket;
(2) constructing a flexible cushion containing a metal wire, inserting pins of the reed pipe into the flexible cushion, and communicating the pins of the reed pipe through the metal wire in the flexible cushion;
(3) extending the metal wires in the flexible pad along the same radial direction and connecting the metal wires with the conducting wires;
(4) sleeving the sleeves outside the support provided with the reed pipe and the flexible gaskets at two ends for fixing the reed pipe, then respectively injecting liquid silica gel into the cavities in the sleeves at two ends, wherein the liquid silica gel is injected for multiple times, the thickness in the sleeve does not exceed 3mm each time, the liquid silica gel is not injected once, and the liquid silica gel can be injected again only after standing for more than 24 hours at normal temperature until the liquid silica gel is full, and forming sealed silica gel gaskets at two ends of the sleeve to obtain the liquid-phase-free reed pipe.
The main structure of the annunciator is shown in fig. 1 and 2, and comprises a sleeve 1 arranged in a guide rod, wherein a support 2 is arranged in the sleeve 1, two reed switches 4 are fixedly arranged on the support 2, and flexible pads 3 are arranged at two ends of the support 2; pins at two ends of the reed pipe 4 extend out of the support 2 and are fixed in the flexible pads 3 at two ends, and metal wires for connecting the two reed pipes 4 are arranged in the flexible pads 3; the two ends of the sleeve 1 are also provided with silica gel layers 5 for fixing the flexible pads 3, the silica gel layers 5 at the upper ends are provided with wires 6, and the metal wires in the flexible pads 3 extend to the upper part of the sleeve 1 and penetrate through the silica gel layers 5 at the upper part to be connected with the wires 6.
The specific implementation mode is that two reed switches 4 are installed on a support 2, the glass part of each reed switch 4 is completely arranged on the support 2, pins of the two reed switches 4 are aligned, then the pins above and below the two reed switches 4 are installed in flexible pads 3 at two ends, the pins of the two reed switches 4 are connected through metal wires in the flexible pads 3 at the moment, and then the metal wires in the flexible pads 3 are all led out upwards to be connected with a lead 6.
Inserting the support 2 provided with the reed pipe 4 and the flexible pads 3 with the pins of the reed pipe 4 fixed at two ends into the sleeve 1, adjusting the support 2 and the flexible pads 3 to proper positions, injecting liquid silica gel into two ends of the sleeve 1, adhering the flexible pads 3 at two ends with the inner wall of the sleeve 1 by the liquid silica gel, sealing the reed pipe 4 arranged on the support 2, forming silica gel layers 5 at two ends of the sleeve 1 after the silica gel is cooled and solidified, and sealing the support 2, the flexible pads 3 and the reed pipe 4 in the sleeve 1.
Example 2:
in this embodiment, on the basis of the above embodiment, the structure of the bracket 2 in step (1) is further defined, as shown in fig. 1 and fig. 2, the bracket 2 is composed of a support tube at the middle part and fixing plates at both ends, the fixing plates at both ends are provided with two through holes for fixing the reed pipe 4, and both ends of the reed pipe 4 are respectively inserted into the through holes of the fixing plates at both ends of the bracket 2; the free surface of the fixing plate is tightly attached to the flexible pad 3. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 3:
the embodiment is based on the above embodiment, and the position of the reed switch 4 on the bracket 2 in step (1) is further defined, as shown in fig. 1 and fig. 2, the reed switch 4 is distributed on both sides of the support tube of the bracket 2, and the two reed switches 4 are axisymmetrical with the central axis of the support tube. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 4:
the present embodiment further defines the position of the metal wire in the flexible pad 3 in step (2), as shown in fig. 1 and fig. 2, the metal wire in the lower flexible pad 3 extends upward through the support tube of the bracket 2, and is connected to the lead 6 through the upper flexible pad 3 and the silicone rubber layer 5, and the metal wire in the upper flexible pad 3 is connected to the lead 6 through the silicone rubber layer 5. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 5:
in this embodiment, on the basis of the above embodiment, the structure of the sleeve 1 in step (4) is further defined, as shown in fig. 1 and fig. 2, through holes are further respectively provided at two ends of the sleeve 1, and an adjusting device 7 capable of adjusting the position of the sleeve 1 in the guide rod is provided in each through hole. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
Example 6:
the present embodiment further defines the structure of the adjusting device 7 on the basis of the above embodiments, as shown in fig. 3, the adjusting device 7 includes a plug clamped in the through hole at the end of the sleeve 1, and cotton threads fixed on the plug and extending out of the through hole at the end of the sleeve 1. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.
It is to be understood that the working principle and working process of the enclosing annunciator structure according to one embodiment of the present invention, such as the silicone pad 5 and the lead wire 6, are well known in the art and will not be described in detail herein.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A method of assembling an enclosed signal comprising the steps of:
(1) constructing a bracket for fixing the reed switch, and installing the reed switch forming the annunciator on the bracket;
(2) constructing a flexible cushion containing a metal wire, inserting pins of the reed pipe into the flexible cushion, and communicating the pins of the reed pipe through the metal wire in the flexible cushion;
(3) extending the metal wires in the flexible pad along the same radial direction and connecting the metal wires with the conducting wires;
(4) sleeving the sleeves outside the support provided with the reed pipe and the flexible gaskets at two ends for fixing the reed pipe, then respectively injecting liquid silica gel into the cavities in the sleeves at two ends, wherein the liquid silica gel is injected for multiple times, the thickness in the sleeve does not exceed 3mm each time, the liquid silica gel is not injected once, and the liquid silica gel can be injected again only after standing for more than 24 hours at normal temperature until the liquid silica gel is full, and forming sealed silica gel gaskets at two ends of the sleeve to obtain the liquid-phase-free reed pipe.
2. The method according to claim 1, wherein the bracket in step (1) is mainly composed of a support tube at the middle part and fixing plates at two ends, the fixing plates at two ends are provided with two through holes for fixing the reed switch, and two ends of the reed switch are respectively inserted into the through holes of the fixing plates at two ends of the bracket; the free surface of the fixing plate is tightly attached to the flexible pad.
3. The method according to claim 2, wherein in step (1), the reed switches are disposed on two sides of the support tube of the bracket, and the two reed switches are axisymmetrical about the central axis of the support tube.
4. The method according to claim 2 or 3, wherein in the step (2), the wires in the lower flexible pad extend through the support tube to the upper portion, and are connected to the wires through the upper flexible pad and the silicone layer, and the wires in the upper flexible pad are connected to the wires through the silicone layer.
5. The method according to any one of claims 1 to 3, wherein in the step (4), the two ends of the sleeve are respectively provided with a through hole, and the through holes are respectively provided with an adjusting device capable of adjusting the position of the sleeve in the guide rod.
6. The method of claim 5, wherein the adjustment device comprises a plug that is received in a through hole in the end of the sleeve, and wherein the plug has a cotton thread secured thereto that extends out of the through hole in the end of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011589320.7A CN114694991A (en) | 2020-12-29 | 2020-12-29 | Assembling method of closed type annunciator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011589320.7A CN114694991A (en) | 2020-12-29 | 2020-12-29 | Assembling method of closed type annunciator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114694991A true CN114694991A (en) | 2022-07-01 |
Family
ID=82131511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011589320.7A Pending CN114694991A (en) | 2020-12-29 | 2020-12-29 | Assembling method of closed type annunciator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114694991A (en) |
-
2020
- 2020-12-29 CN CN202011589320.7A patent/CN114694991A/en active Pending
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