CN111795056A

CN111795056A - Bolt

Info

Publication number: CN111795056A
Application number: CN202010635987.XA
Authority: CN
Inventors: 孙浩; 高力
Original assignee: 孙浩
Current assignee: ZHEJIANG TIANLI MOTOR PARTS Co.,Ltd.
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2020-10-20
Anticipated expiration: 2040-07-04
Also published as: CN111795056B

Abstract

The invention relates to the field of bolts, in particular to a bolt which comprises a main body mechanism, a fixing mechanism, a strain mechanism, a temperature compensation mechanism and a sealing mechanism, wherein the main body mechanism is provided with a first fixing hole and a second fixing hole; when the strain gauge meets a high-temperature environment, the strain gauge expands due to thermal expansion and cold contraction, so that the use process is influenced; at the moment, the two first air bags are thermally expanded to respectively push the two abutting blocks, the two abutting blocks respectively push the two springs, the two springs respectively push the two push plates, and then the two push plates push the strain gauge to enable the strain gauge to be extruded, so that the strain gauge is compensated and restored due to the deformation caused by thermal expansion, and therefore the device can compensate the change of the strain gauge caused by environmental influence when being used at a high temperature state, and the device can guarantee the accuracy of pressure induction of the strain gauge in the high temperature environment in actual use.

Description

Bolt

Technical Field

The invention relates to the field of bolts, in particular to a bolt.

Background

The bolt is a cylindrical threaded fastener with a nut. A fastener consisting of a head and a screw is matched with a nut and used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

However, in the process of installing and using the generator, the existing bolt has certain requirements on waterproofness and sealability when in use due to the fact that the interior of the bolt contains a plurality of intelligent elements, but the traditional intelligent bolt has poor sealability and waterproofness; in addition, under the high temperature environment, because numerous mechanisms in the device expand with heat and contract with cold for the deviation appears in the response of meeting an emergency.

Disclosure of Invention

The invention provides a bolt aiming at the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a bolt comprises a main body mechanism, a fixing mechanism, a strain mechanism, a temperature compensation mechanism and a sealing mechanism, wherein the fixing mechanism is fixedly arranged at the top of the side wall of the main body mechanism and is used for fixing an electric connecting wire, the strain mechanism is arranged in the main body mechanism and is used for detecting stress change, the temperature compensation mechanism is fixedly arranged in the main body mechanism top and is used for compensating the strain mechanism for temperature, and the sealing mechanism is fixedly arranged at the top of the main body mechanism and is used for protecting the strain mechanism for protection.

Specifically, the main part mechanism includes screw rod, screw tooth, end, nut and sealing plug, is cylindric the fixed a plurality of that is equipped with in bottom of screw rod lateral wall the screw tooth, just the bottom fixedly connected with of screw rod is round platform form the end, the top fixed mounting of screw rod has and is regular hexagonal prism form the nut, the top block of nut is connected with and is the cake form the sealing plug.

Specifically, the fixing mechanism comprises a fixing ring and a fixing fixture block, the top of the side wall of the screw is fixedly provided with the fixing ring in a circular ring shape, and the fixing ring is fixedly connected with the fixing fixture block in a block shape.

Specifically, straining device is including settling chamber, fixture block, slide bar, foil gage and spout, the inside of nut is equipped with to be cylindricly settle the chamber, the bottom in settle the chamber be located fixed mounting has on the nut be discoid the fixture block, the inside of fixture block is equipped with the cross-section and is the font of falling T the spout, inside both ends of spout slide block respectively slide the block and be connected with the cross-section equally be the font of falling T the slide bar, two fixedly connected with is the disk form between the slide bar the foil gage.

Specifically, temperature compensation mechanism includes temperature compensation frame, first gasbag, supports piece, spring and push pedal, the inside both sides in nut middle part are equipped with one respectively and are the rectangle frame form the temperature compensation frame, two the inside of temperature compensation frame all is equipped with one first gasbag, the one end of first gasbag contradict in support the piece, support the piece sliding card in the port department of temperature compensation frame, support the other end fixed connection of piece in the spring, the other end fixed connection of spring is in the rectangle is massive the push pedal.

Specifically, the sealing mechanism comprises a second air bag frame, a second air bag, a connecting rod, a collision ball, a vent pipe and a sealing air cushion, wherein two frame-shaped second air bag frames are fixedly mounted on two sides inside the screw cap respectively, the second air bag in an ellipsoidal shape is fixedly mounted inside the second air bag frame, the bottom of the second air bag penetrates through the second air bag and the screw cap, the connecting rod in a round rod shape is fixedly mounted on the screw cap, and the bottom end of the connecting rod is clamped and slidably connected with the collision ball; one end of the second air bag is fixedly communicated with the vent pipe in a tubular shape, the other end of the vent pipe is communicated with the flat sealing air cushion, and the sealing air cushion is fixedly connected to the bottom of the sealing plug.

The invention has the beneficial effects that:

(1) according to the bolt, the end head of the end part of the screw rod is aligned to the screw hole to be fastened, the bolt is made to extend into the screw hole and rotate continuously, the screw teeth rotate and push in the screw hole continuously to drive the screw rod to move, when the interference ball at the bottom of the connecting rod is abutted against the mounting surface, the interference ball is pressed, the collision ball is pressed and transmitted to the connecting rod, the connecting rod extrudes the second air bag after being pressed, after the second air bag is extruded, the gas in the second air bag enters the sealing air cushion through the vent pipe, and the sealing air cushion is continuously expanded after entering the gas, therefore, the gap between the sealing plug and the nut is further sealed, so that the device can further seal the electric appliance element in the main body mechanism.

(2) According to the bolt, when a high-temperature environment is met, due to the effects of expansion with heat and contraction with cold, the strain gauge is heated to expand, and a certain influence is caused on the whole using process; at the moment, the two first air bags are thermally expanded, the two first air bags respectively push the two abutting blocks, the two abutting blocks respectively push the two springs, the two springs respectively further push the push plate, and then the two push plates push the strain gauge to ensure that the strain gauge is extruded and the strain gauge is compensated and restored due to the deformation caused by thermal expansion, so that the device can compensate the change of the strain gauge caused by the environmental influence when being used at a high temperature, and the device can ensure the accuracy of pressure sensing of the strain gauge in the high temperature environment when being used in practice.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of an overall structure of a bolt according to a preferred embodiment of the present invention;

FIG. 2 is a radial cross-sectional view of the overall structure of a bolt provided by the present invention;

FIG. 3 is a radial cross-sectional view of a fixture block and a slide bar of a bolt provided by the present invention;

fig. 4 is an enlarged view of the portion a shown in fig. 2.

In the figure: 1. the device comprises a main body mechanism, 11, a screw rod, 12, a screw thread, 13, an end head, 14, a nut, 15, a sealing plug, 2, a fixing mechanism, 21, a fixing ring, 22, a fixing clamping block, 3, a strain mechanism, 31, a placement cavity, 32, a clamping block, 33, a sliding rod, 34, a strain sheet, 35, a sliding groove, 4, a temperature compensation mechanism, 41, a temperature compensation frame, 42, a first air bag, 43, a resisting block, 44, a spring, 45, a push plate, 5, a sealing mechanism, 51, a second air bag frame, 52, a second air bag, 53, a connecting rod, 54, a resisting ball, 55, a vent pipe, 56 and a sealing air cushion.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the bolt of the present invention includes a main body mechanism 1, a fixing mechanism 2, a strain mechanism 3, a temperature compensation mechanism 4 and a sealing mechanism 5, wherein the fixing mechanism 2 for fixing an electrical connection line is fixedly installed at the top of a side wall of the main body mechanism 1 for being in threaded connection with other devices, the strain mechanism 3 for detecting stress change is installed inside the main body mechanism 1, the temperature compensation mechanism 4 for performing a temperature compensation function on the strain mechanism 3 is fixedly installed inside the top of the main body mechanism 1, and the sealing mechanism 5 for performing a protection function on the strain mechanism 3 is fixedly installed at the top of the main body mechanism 1.

Specifically, the main body mechanism 1 comprises a screw rod 11, screw teeth 12, an end head 13, a screw cap 14 and a sealing plug 15, wherein the screw teeth 12 are fixedly arranged at the bottom of the side wall of the cylindrical screw rod 11, the end head 13 in a circular truncated cone shape is fixedly connected to the bottom of the screw rod 11, the screw cap 14 in a regular hexagonal prism shape is fixedly arranged at the top of the screw rod 11, and the sealing plug 15 in a circular cake shape is connected to the top of the screw cap 14 in a clamping manner; when in use, the device is integrally fixed and installed.

Specifically, the fixing mechanism 2 includes a fixing ring 21 and a fixing fixture block 22, the circular fixing ring 21 is fixedly installed at the top of the side wall of the screw rod 11, and the fixing ring 21 is fixedly connected with the two block-shaped fixing fixture blocks 22; when the device is used, the fixed clamping block 22 is opened and closed, so that the exposed electrical connection line in the device can be conveniently and fixedly clamped.

Specifically, the strain mechanism 3 includes a mounting cavity 31, a fixture block 32, a slide rod 33, a strain gauge 34 and a slide groove 35, the cylindrical mounting cavity 31 is disposed inside the nut 14, the bottom of the mounting cavity 31 is located on the nut 14, the fixture block 32 is fixedly mounted in a disc shape, the slide groove 35 with an inverted T-shaped cross section is disposed inside the fixture block 32, the slide rod 33 with an inverted T-shaped cross section is slidably engaged with two ends inside the slide groove 35, respectively, and the strain gauge 34 with a disc shape is fixedly connected between the two slide rods 33; when the device is used, the sensing effect of the strain gauge 34 is used for conveniently detecting the bolt pretightening force.

Specifically, the temperature compensation mechanism 4 includes a temperature compensation frame 41, a first air bag 42, a resisting block 43, a spring 44 and a push plate 45, two sides of the inside of the middle portion of the nut 14 are respectively provided with the temperature compensation frame 41 in a rectangular frame shape, the inside of each of the two temperature compensation frames 41 is provided with one first air bag 42, one end of the first air bag 42 is abutted against the resisting block 43, the resisting block 43 is slidably clamped at the port of the temperature compensation frame 41, the other end of the resisting block 43 is fixedly connected to the spring 44, and the other end of the spring 44 is fixedly connected to the push plate 45 in a rectangular block shape; when the temperature compensation device is used, the first air bag 42 is heated and expanded to generate pushing force, so that the temperature compensation is carried out on the deformation of the strain gauge 34.

Specifically, the sealing mechanism 5 includes a second air bag frame 51, a second air bag 52, a connecting rod 53, a contact ball 54, a vent pipe 55 and a sealing air cushion 56, two sides inside the nut 14 are respectively and fixedly provided with the second air bag frame 51 in a frame shape, the second air bag 52 in an ellipsoid shape is fixedly arranged inside the second air bag frame 51, the bottom of the second air bag 52 penetrates through the second air bag 52 and the nut 14 and is fixedly provided with the connecting rod 53 in a round rod shape, and the bottom end of the connecting rod 53 is connected with the contact ball 54 in a clamping and sliding manner; one end of the second air bag 52 is fixedly communicated with the tubular vent pipe 55, the other end of the vent pipe 55 is communicated with the flat sealing air cushion 56, and the sealing air cushion 56 is fixedly connected to the bottom of the sealing plug 15; when in use, the pressure applied to the interference ball 54 is transmitted to the connecting rod 53, the connecting rod 53 presses the second air bag 52 after being pressed, and the gas is transmitted into the sealing air cushion 56 through the vent pipe 55 after the second air bag 52 is pressed, so that the sealing of the sealing plug 15 is protected.

When in use, firstly, the screw rod 11 is clamped by a clamp manually, then, the end 13 of the end of the screw rod 11 is aligned with a screw hole to be fastened, the bolt is extended into the screw hole and continuously rotates, the screw thread 12 is continuously rotated and pushed in the screw hole to drive the screw rod 11 to move, when the interference ball 54 at the bottom of the connecting rod 53 is abutted against a mounting surface, the interference ball 54 is pressed, the pressure is transmitted to the connecting rod 53, the connecting rod 53 is pressed to extrude the second air bag 52, after the second air bag 52 is extruded, the gas in the second air bag 52 enters the sealing air cushion 56 through the vent pipe 55, and the sealing air cushion 56 is continuously expanded after entering the gas, so as to further seal a gap between the sealing plug 15 and the nut 14, so that the device can further seal the electrical elements inside the main body mechanism 1; when the screw 11 continuously rotates to enter or exit a required screw hole, the strain gauge 34 can sense pressure through sensors distributed on the strain gauge in the process so as to detect the change of pretightening force of the intelligent bolt in the use process; in the process, when the high-temperature environment is met, the strain gauge 34 is heated to expand due to the effects of thermal expansion and cold contraction, so that the whole using process is influenced to a certain extent; at this moment, the two first airbags 42 are heated to expand, the two first airbags 42 respectively push the two abutting blocks 43, the two abutting blocks 43 respectively push the two springs 44, the two springs 44 respectively further push the push plate 45, and then the two push plates 45 push the strain gauge 34 to enable the strain gauge 34 to be extruded, so that the strain gauge 34 is compensated and restored due to deformation caused by thermal expansion, and therefore the device can compensate for changes of the strain gauge 34 caused by environmental influences when used at a high temperature, so that the device can ensure accuracy of pressure sensing of the strain gauge 34 in a high-temperature environment during actual use, and finally complete the whole using process of the device.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A bolt, characterized in that: including main part mechanism (1), fixed establishment (2), straining mechanism (3), temperature compensation mechanism (4) and sealing mechanism (5), be used for with other device threaded connection the lateral wall top fixed mounting of main part mechanism (1) has fixed electrical connection line be used for fixed electrical connection fixed establishment (2), the inside of main part mechanism (1) is equipped with and is used for detecting stress variation straining mechanism (3), just the inside fixed arrangement at main part mechanism (1) top has and is used for corresponding straining mechanism (3) play the temperature compensation effect temperature compensation mechanism (4), simultaneously the top fixed mounting of main part mechanism (1) has and is used for straining mechanism (3) play the guard action sealing mechanism (5).

2. A bolt according to claim 1, wherein: main part mechanism (1) includes screw rod (11), screw tooth (12), end (13), nut (14) and sealing plug (15), is cylindric the bottom of screw rod (11) lateral wall is fixed and is equipped with a plurality of screw tooth (12), just the bottom fixedly connected with of screw rod (11) is the round platform form end (13), the top fixed mounting of screw rod (11) has and is regular hexagonal prism form nut (14), the top block of nut (14) is connected with and is the cake form sealing plug (15).

3. A bolt according to claim 2, wherein: the fixing mechanism (2) comprises a fixing ring (21) and a fixing clamping block (22), the top of the side wall of the screw rod (11) is fixedly provided with the fixing ring (21) in a ring shape, and the fixing ring (21) is fixedly connected with the fixing clamping block (22) in a block shape.

4. A bolt according to claim 2, wherein: strain mechanism (3) are including settling chamber (31), fixture block (32), slide bar (33), foil gage (34) and spout (35), the inside of nut (14) is equipped with to be cylindricly settle chamber (31), the bottom of settling chamber (31) is located fixed mounting has to be discoid on nut (14) fixture block (32), the inside of fixture block (32) is equipped with the cross-section and is the font of falling T spout (35), the inside both ends of spout (35) slip block respectively are connected with the cross-section and equally be the font of falling T slide bar (33), two fixedly connected with is the disk between slide bar (33) foil gage (34).

5. A bolt according to claim 2, wherein: temperature compensation mechanism (4) are including warm-up frame (41), first gasbag (42), support piece (43), spring (44) and push pedal (45), the inside both sides in nut (14) middle part are equipped with one respectively and are the rectangle frame form warm-up frame (41), two the inside of warm-up frame (41) all is equipped with one first gasbag (42), the one end of first gasbag (42) contradict in support piece (43), support piece (43) slip joint in the port department of warm-up frame (41), support the other end fixed connection of piece (43) in spring (44), the other end fixed connection of spring (44) is the rectangle cubic push pedal (45).

6. A bolt according to claim 2, wherein: the sealing mechanism (5) comprises a second air bag frame (51), a second air bag (52), a connecting rod (53), a collision ball (54), a vent pipe (55) and a sealing air cushion (56), two sides inside the nut (14) are respectively fixedly provided with the second air bag frame (51) in a frame shape, the second air bag (52) in an ellipsoid shape is fixedly arranged inside the second air bag frame (51), the bottom of the second air bag (52) penetrates through the second air bag (52) and the nut (14) and is fixedly provided with the connecting rod (53) in a round rod shape, and the bottom end of the connecting rod (53) is clamped and slidably connected with the collision ball (54); one end of the second air bag (52) is fixedly communicated with a tubular vent pipe (55), the other end of the vent pipe (55) is communicated with the flat sealing air cushion (56), and the sealing air cushion (56) is fixedly connected to the bottom of the sealing plug (15).