CN214621703U - Gasket for detecting bolt looseness - Google Patents
Gasket for detecting bolt looseness Download PDFInfo
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- CN214621703U CN214621703U CN202121157172.1U CN202121157172U CN214621703U CN 214621703 U CN214621703 U CN 214621703U CN 202121157172 U CN202121157172 U CN 202121157172U CN 214621703 U CN214621703 U CN 214621703U
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- gasket
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- annular elastic
- resistance wire
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Abstract
The utility model relates to a gasket for detecting bolt is not hard up, gather the part including gasket body and resistance value, the gasket body is for taking open-ended annular elastic gasket, resistance value is gathered the part and is included resistance spare and gleitbretter, resistance spare set up in the opening part, the gleitbretter with resistance spare contact, and when the bolt is in not hard up state respectively and not hard up state, the relative position between gleitbretter and the resistance spare changes to realize that the resistance value changes. The utility model discloses simple structure only carries out very simple transformation to original gasket, and is with low costs, can realize the not hard up accurate detection of bolt through detecting that resistance value changes, and utilizes the sliding resistance principle to realize that resistance change detects, and the implementation mode is simple, the good reliability.
Description
Technical Field
The utility model relates to a bolt technical field, in particular to a gasket for detecting bolt is not hard up.
Background
Bolt looseness detection is a big problem faced in the current engineering field, and for example, bolt looseness detection requirements exist in power towers, high-speed rail lines and the like. At present, most of the work needs manual inspection, and the workload is large and the efficiency is low. In recent years, bolt looseness detection is realized through pressure change borne by piezoresistive materials, one scheme is direct detection through pressure change, the other scheme is detection through resistance change caused by pressure change, and the method can realize intelligent detection without manual work, but has defects, such as high cost, sensitivity to environmental temperature change, failure caused by factors such as corrosion and rusting in an open-air environment and the like, so that the bolt looseness detection is difficult to popularize and use in actual life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gasket for detecting bolt is not hard up, not only can realize automated inspection, moreover can greatly reduce cost.
In order to realize the purpose of the utility model, the embodiment of the utility model provides a following technical scheme:
the utility model provides a gasket for detecting bolt is not hard up, gather the part including gasket body and resistance value, the gasket body is for taking open-ended annular elastic gasket, resistance value gathers the part including resistance spare and gleitbretter, resistance spare set up in the opening part, the gleitbretter with resistance spare contact, and when the bolt was in not hard up state respectively and not hard up state, the relative position between gleitbretter and the resistance spare changed to realize that the resistance value changes.
It should be noted that the utility model discloses the scheme does not inject not hard up the scope the utility model discloses in the scheme, the bolt only has two kinds of states, is not the not hard up state and not hard up state respectively, just deems the bolt to be in not hard up state when detecting the resistance value change (allowing to have certain fault-tolerant error, the resistance value variation is greater than the settlement threshold value promptly) at annular elastic gasket opening both ends, otherwise then the bolt is in not hard up state.
In the scheme, the principle of the sliding resistor is utilized, the resistor piece and the sliding sheet form a sliding resistor structure, when the bolt is loosened, the gasket body deforms due to pressure loss, the relative position between the resistor piece and the sliding sheet changes, therefore, the length of the resistor piece connected to the circuit changes, the resistor changes when being detected, and then the bolt loosening detection is realized.
In one embodiment, when the annular elastic gasket deforms due to the loosening of the bolt, the resistor or the sliding sheet can move or deform synchronously along with the annular elastic gasket in the deformation direction. When the annular elastic gasket is deformed due to the looseness of the bolt, the resistance piece or the slip sheet can synchronously move in the deformation direction or respectively follow the annular elastic gasket, only one of the resistance piece or the slip sheet is limited to move in a following mode, and therefore the structure is simplified.
In one embodiment, the resistance piece is an elastic spiral resistance wire, two ends of the spiral resistance wire are respectively connected with two end portions of the opening, when the annular elastic gasket deforms due to loosening of the bolt, the spiral resistance wire deforms synchronously along with the annular elastic gasket, one end of the slip sheet is fixed at one end portion of the opening, and two pins of the detection circuit are respectively connected with the slip sheet and the spiral resistance wire.
In one embodiment, the resistance piece is a spiral resistance wire, one end of the spiral resistance wire is connected with one end of the opening, the other end of the spiral resistance wire is suspended, when the annular elastic gasket deforms due to loosening of the bolt, the spiral resistance wire synchronously moves in the deformation direction along with the annular elastic gasket, one end of the sliding piece is fixed at the other end of the opening, and two pins of the detection circuit are respectively connected with the sliding piece and the spiral resistance wire.
In one embodiment, the resistance piece is a resistance column made of a resistance material, one end of the slip sheet is fixed to one end of the opening, when the annular elastic gasket deforms due to looseness of the bolt, the slip sheet moves synchronously in the deformation direction along with the annular elastic gasket, and two pins of the detection circuit are connected with the slip sheet and the resistance column respectively.
Compared with the prior art, the utility model discloses the structure of gasket is all fairly simple, and is with low costs, only need carry out suitable transformation on original gasket and can realize that the bolt is not hard up to detect, and operation is simple, consequently is favorable to popularizing and applying.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIGS. 1a and 1b are schematic views of a partial structure of an opening of a gasket in a structure provided in example 1, in two states of non-loosening and loosening; fig. 1c and 1d are schematic views of partial structures at the opening of the gasket in an alternative structure provided in embodiment 1, in two states of unfastening and loosening.
Fig. 2a and 2b are schematic views of a partial structure at an opening of a gasket provided in embodiment 2 in two states of unfastening and loosening.
The labels in the figure are: 10-annular elastic gasket; 50-spiral resistance wire; 60-sliding sheets; a resistive post 70.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The devices of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The gasket for detecting bolt looseness provided in the embodiment includes a gasket body and a resistance value acquisition component, wherein the gasket body is an annular elastic gasket 10 with an opening. Since the gasket of the present embodiment is only partially modified, only a partial structure is shown in the drawings, such as shown in fig. 1a and 1 b.
Referring to fig. 1a and 1b, in the present embodiment, the resistance value collecting component includes an elastic spiral resistance wire 50 and a sliding sheet 60, the spiral resistance wire 50 is disposed at the opening, two ends of the spiral resistance wire 50 are respectively connected to two ends of the opening, the spiral resistance wire 50 contacts with one end of the sliding sheet 60, the other end of the sliding sheet 60 is fixed to one end of the opening, and two pins of the detection circuit are respectively connected to the sliding sheet 60 and the spiral resistance wire 50. Since the sliding piece 60 is a metal sliding piece, in order to avoid the influence of the annular elastic gasket, the annular elastic gasket is made of a non-metal material.
In the structure shown in fig. 1a and 1b, two ends of the spiral resistance wire 50 are respectively connected with two ends of the opening, and the spiral resistance wire 50 has elasticity, so that the spiral resistance wire can be deformed synchronously along with the annular elastic gasket when the bolt is loosened, but the spiral resistance wire 50 also has no elasticity, namely, the spiral resistance wire is made of a resistance material without elasticity. As shown in fig. 1c and fig. 1d, at this time, the spiral resistance wire 50 is connected to only one end of the opening of the annular elastic pad, but the end is deformed and displaced due to the loosening of the bolt, and then the spiral resistance wire 50 is driven to displace in the deformation direction, and the end of the opening of the annular elastic pad connected to the sliding piece 60 is not displaced due to the loosening of the bolt.
In the embodiment, the principle of the sliding resistor is utilized to detect the change of the resistance value, so that the bolt looseness is detected. Specifically, spiral resistance wire 50 and gleitbretter 60 have constituted the sliding resistance structure, annular elastic gasket takes place deformation because of losing pressure when the bolt is not hard up, use the position shown in the picture as the reference, annular elastic gasket's tip can be at vertical rebound, then can drive spiral resistance wire 50 rebound or deformation, and gleitbretter 60 is fixed, consequently, spiral resistance wire 50 inserts the length of circuit and just changes (diminishes this moment), as shown in fig. 1b, annular elastic gasket can take elastic spiral resistance wire synchronous deformation when the bolt is not hard up, in the structure shown in fig. 1d, then spiral resistance wire and annular elastic gasket synchronous movement, two kinds of circumstances all make the coil number of turns that inserts the circuit diminish, then resistance length shortens, can detect out resistance and change, then realize the bolt not hard up detection.
Example 2
Referring to fig. 2a and 2b, the detection pad provided in the present embodiment is different from that of embodiment 1 in the structure of the resistive member, in which embodiment 1 is the spiral resistance wire 50, and the resistive member is the resistive post 70 made of the resistive material. In this configuration, the resistor post 70 is either a separate component or is attached to one end of the opening of the annular elastomeric washer, and this end is not deformed by the loosening of the bolts. The slip sheet 60 is fixed to one end of the opening, and when the annular elastic gasket is deformed due to the loosening of the bolt, the slip sheet moves synchronously in the deformation direction along with the annular elastic gasket. Two pins of the detection circuit are respectively connected with the sliding sheet and the resistance column.
Since the deformation displacement caused by the loosening of the bolt may be small, that is, the length change of the resistor connected into the circuit is small, in order to improve the sensitivity, it is preferable to use a resistor material with a relatively large resistance value to manufacture the resistor column.
The annular resilient pad 10 is circular in shape, but it will be appreciated that it may be elliptical, rectangular, polygonal, etc. depending on the needs of the particular application.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a gasket for detecting bolt is not hard up, its characterized in that includes gasket body and resistance value acquisition unit, the gasket body is for taking open-ended annular elastic gasket, resistance value acquisition unit includes resistance spare and gleitbretter, resistance spare set up in the opening part, the gleitbretter with resistance spare contact, and when the bolt was in not hard up state respectively and not hard up state, the relative position between gleitbretter and the resistance spare changed to realize that the resistance value changes.
2. The gasket for detecting the loosening of the bolt as claimed in claim 1, wherein when the annular elastic gasket is deformed due to the loosening of the bolt, the resistive member or the sliding piece can move or deform synchronously along with the annular elastic gasket in the deformation direction.
3. The gasket for detecting the loosening of the bolt as claimed in claim 2, wherein the resistance member is a spiral resistance wire with elasticity, two ends of the spiral resistance wire are respectively connected with the two end portions of the opening, when the annular elastic gasket deforms due to the loosening of the bolt, the spiral resistance wire deforms synchronously along with the annular elastic gasket, one end of the slip sheet is fixed at one end portion of the opening, and two pins of the detection circuit are respectively connected with the slip sheet and the spiral resistance wire.
4. The gasket for detecting the loosening of the bolt as claimed in claim 2, wherein the resistance member is a spiral resistance wire, one end of the spiral resistance wire is connected with one end of the opening, the other end of the spiral resistance wire is suspended, when the annular elastic gasket deforms due to the loosening of the bolt, the spiral resistance wire synchronously moves along with the annular elastic gasket in the deformation direction, one end of the sliding sheet is fixed at the other end of the opening, and two pins of the detection circuit are respectively connected with the sliding sheet and the spiral resistance wire.
5. The gasket of claim 2, wherein the resistive member is a resistive post made of a resistive material, one end of the sliding piece is fixed to one end of the opening, and when the annular elastic gasket deforms due to the loosening of the bolt, the sliding piece moves synchronously along the deformation direction of the annular elastic gasket, and the two pins of the detection circuit are respectively connected with the sliding piece and the resistive post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121157172.1U CN214621703U (en) | 2021-05-27 | 2021-05-27 | Gasket for detecting bolt looseness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121157172.1U CN214621703U (en) | 2021-05-27 | 2021-05-27 | Gasket for detecting bolt looseness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214621703U true CN214621703U (en) | 2021-11-05 |
Family
ID=78410647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121157172.1U Active CN214621703U (en) | 2021-05-27 | 2021-05-27 | Gasket for detecting bolt looseness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214621703U (en) |
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2021
- 2021-05-27 CN CN202121157172.1U patent/CN214621703U/en active Active
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