CN108181179B - A kind of tensile strength test device - Google Patents
A kind of tensile strength test device Download PDFInfo
- Publication number
- CN108181179B CN108181179B CN201711491043.4A CN201711491043A CN108181179B CN 108181179 B CN108181179 B CN 108181179B CN 201711491043 A CN201711491043 A CN 201711491043A CN 108181179 B CN108181179 B CN 108181179B
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- movable block
- chamber
- pressure
- gas injection
- air
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
Abstract
The invention discloses a kind of tensile strength test devices, including frame body and the stretching device being installed on inside the frame body and installation settings are set in the gas injection device of the frame body upper end, the stretching device includes the first air chamber being set on the right side of the stretching device, the first movable block is provided on the left of first air chamber, first movable block and first air chamber sliding connection cooperation, first movable block side is provided with the first sealing recess portion, the first sealing ring is provided in the first sealing recess portion, the first motion bar is provided on the left of first movable block, cooperation is fixedly connected with first movable block on the right side of first motion bar, first motion bar left end is fixedly installed stretch rod, the stretch rod right end is fixedly connected with cooperation with first motion bar, the stretch rod left end is fixedly connected with fixture.
Description
Technical field
The present invention relates to tensile strength test technical field, specifically a kind of tensile strength test device.
Background technique
It is essential in life production process now that some bars are carried out with tensile strength test, such as we are often
Its trip safety belt all to be used by bus, travelling belt used in building site V belt translation transport article etc. will guarantee certain
Otherwise intensity will cause unpredictable accident, therefore in these safety belts, before belt and other items is produced in batches or
Required in batch production process sampling carry out tensile strength test, but to these articles carry out strength test when due to lack
Special equipment, so these tests can only be contracted out to other companies or research institute by many companies, it is so not only with high costs, and
And slower is reacted for test result, just know whether test result is qualified after often having produced large-tonnage product, therefore design one
The simple effective tensile strength test device of kind, it is very necessary that enterprise, which oneself can carry out product test,.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of tensile strength test devices, are able to solve above-mentioned present
The problems in technology.
The present invention is achieved through the following technical solutions: a kind of tensile strength test device of the invention, including frame
Body and setting are installed on stretching device inside the frame body and installation settings in the gas injection device of the frame body upper end, the drawing
Stretching device includes the first air chamber being set on the right side of the stretching device, and the first activity is provided on the left of first air chamber
Block, first movable block and first air chamber sliding connection cooperation, it is close that first movable block side is provided with first
Recess portion is sealed, the first sealing ring is provided in the first sealing recess portion, is provided with the first motion bar on the left of first movable block,
Cooperation is fixedly connected with first movable block on the right side of first motion bar, first motion bar left end is fixedly installed drawing
Boom, the stretch rod right end are fixedly connected with cooperation with first motion bar, and the stretch rod left end is fixedly connected with fixture,
Stretch rod slide opening is offered on the left of the frame body, the stretch rod and stretch rod slide opening sliding are cooperatively connected, and described first
First annular seal space is offered on the left of movable block, is provided with bracket on the left of the first annular seal space, the bracket side is provided with branch
Frame seals recess portion, is provided with bracket sealing ring in the bracket sealing recess portion, and the first annular seal space lower end is provided with pressure relief opening,
It is provided with pressure overload protection device on the left of the first annular seal space upper end, is provided with gas injection on the right side of the first annular seal space upper end
Device.
Preferably technical solution, the gas injection device include handle portion and part of calming the anger, the handle portion subpackage
Handle is included, the handle connect cooperation using first axle turn with the branch head that upper surface on the left of the frame body is arranged in, described
The middle of the handle position is provided with part of calming the anger, and the part of calming the anger includes the second gas injection chamber, is provided in the second gas injection chamber
Second movable block, second movable block and the second gas injection chamber sliding are cooperatively connected, the setting of second movable block side
There is the second sealing recess portion, is provided with the second sealing ring in the second sealing recess portion, second movable block passes through described second
Sealing ring is isolated by the second gas injection chamber, and second movable block upper end is provided with pull rod, the pull rod lower end and described the
Two movable block upper surfaces are fixedly connected with cooperation, the pull rod upper end and the handle middle-end and are connected using second hinge turn cooperation
It connects, the second gas injection chamber lower end offers air inlet, is fixedly installed one-way cock in the air inlet, realizes described the
The intracavitary one-way conduction of two gas injections, the air inlet lower end are connected to the first annular seal space.
Preferably technical solution, the pressure overload protection device include Pressure chamber, the Pressure chamber lower end setting
There is closed portion, third movable block is provided in the Pressure chamber, third movable block upper end is set in Pressure chamber, and described
Three movable block upper ends side are provided with third sealing recess portion, are provided with third sealing ring in third sealing recess portion, and described the
Three movable block lower ends are set in the closed portion, and the third movable block and Pressure chamber sliding are cooperatively connected, and described the
Three movable block lower ends are covered with diaphragm seal, and the closed subordinate end, which offers, lets out gas entering opening, are provided with and let out on the left of the closed portion
Gas portals, the diaphragm seal and the third movable block cooperate by it is described let out gas entering opening with it is described it is discouraged portal be isolated, it is described to let out
Gas entering opening is connected with the first annular seal space, it is described lose heart portal and be in communication with the outside, the Pressure chamber upper end is provided with valve port,
Air of the valve port to fill certain pressure to the Pressure chamber.
Preferably technical solution, the handle right end are provided with casing, and described sleeve pipe and the handle use screw thread
It is cooperatively connected.
Preferably technical solution, the frame body lower end, which is provided with, keeps a foothold, and can keep the frame body by described keep a foothold
Balance when being placed in ground.
The beneficial effects of the present invention are: the configuration of the present invention is simple, easy to operate, only need to be arranged in Pressure chamber in advance certain
The air of pressure value is that third movable block moves down, and closes the gas connection that closed portion completely cuts off lose heart import and air bleed outlets, together
When pressure relief opening is closed, at this point, first annular seal space keep air-tightness, meanwhile, by casing turn increase handle length, at this point,
Upper and lower lift-pull handle, handle is around hinge turn, while the screw movement up and down of handle drives pull rod to move repeatedly up and down, simultaneously
Pull rod drives the second movable block to do and moves repeatedly up and down, and one-way cock ensure that the one-way conduction of air in the second gas injection chamber
Property, guarantee for the air in the second gas injection chamber to be endlessly pressed into first annular seal space, at this time the sky in first annular seal space
Atmospheric pressure is gradually increased, pressure in first annular seal space pushes the second movable block constantly to move to right, while the second movable block moves to right
It ensure that air pressure is consistent with the pressure of the first air chamber in first annular seal space, the second movable block constantly moves to right drive first
Motion bar moves to right, while the first motion bar has driven determinand clamped on fixture constantly to stretch to the right, at this time the first sealing
The consistency of pressure in chamber and the pressure in the first air chamber, which ensure that, has certain pulling force to folded article, when first close
When air pressure reaches consistent with the air pressure being pre-charged in Pressure chamber in envelope chamber, third movable block is by first annular seal space
The pressure of middle air acts on, and third movable block moves up, and exposes closed portion, lose heart at this time import and air bleed outlets gas connection, the
One seal chamber starts pressure release, and when first annular seal space pressure drops in Pressure chamber below air pressure value, third movable block is again
Closed portion is closed, so ensure that the maximum pressure being subject to institute's determinand is only pressure value set in advance, terminating
After extension test, pressure relief opening is opened, the high pressure gas in first annular seal space is released, the first movable block is by the first sky at this time
Air pressure effect in air cavity moves to left, until the first movable block returns to initial position, i.e., in first annular seal space air pressure with
The stopping of the first movable block moves to left when air pressure is consistent in first air chamber, meanwhile, valve port is opened, is laid down in Pressure chamber
Air pressure, present apparatus structure simple operations are convenient, while ensure that preset stretching force value when in use.
Detailed description of the invention
The present invention is described in detail by following specific embodiments and drawings for ease of explanation,.
Fig. 1 is a kind of tensile strength test device overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram of pressure overload protection device of the invention；
Fig. 3 is the structural schematic diagram of gas injection device of the invention.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, a kind of tensile strength test device of the invention, including frame body 11 and setting installation
Stretching device and installation settings inside the frame body 11 is in the gas injection device of 11 upper end of frame body, the stretching device packet
The first air chamber 31 being set on the right side of the stretching device is included, is provided with the first movable block on the left of first air chamber 31
32, first movable block 32 cooperates with first air chamber 31 sliding connection, and 32 side of the first movable block is provided with
First seals recess portion 33, is provided with the first sealing ring 40 in the first sealing recess portion 33, first sealing ring 40 ensures
The air-tightness of first air chamber 31 is provided with the first motion bar 35, first activity on the left of first movable block 32
35 right side of bar is fixedly connected with cooperation with first movable block 32, and 35 left end of the first motion bar is fixedly installed stretch rod
39,39 right end of stretch rod is fixedly connected with cooperation with first motion bar 35, and 39 left end of stretch rod is fixedly connected with
Fixture 21, stretch rod slide opening 22 is offered on the left of the frame body 11, and the stretch rod 39 is matched with the stretch rod slide opening 22 sliding
Connection is closed, first annular seal space 34 is offered on the left of first movable block 32, is provided with bracket on the left of the first annular seal space 34
37,37 side of bracket is provided with bracket sealing recess portion 38, is provided with bracket sealing ring 41 in the bracket sealing recess portion 37,
The bracket sealing ring 41 ensures the leakproofness of the first annular seal space 34, and 34 lower end of first annular seal space is provided with pressure relief opening
36, pressure is provided with by 36 pressure release of pressure relief opening on the left of 34 upper end of first annular seal space in the first annular seal space 34
Pressure overload protection device 70,34 upper end of the first annular seal space right side are provided with gas injection device 50.
Valuably, the gas injection device 50 includes handle portion and part of calming the anger, and the handle portion includes handle 14, institute
It states handle 14 and connect cooperation with use 13 turn of first axle of branch head 12 that the 11 left side upper surface of frame body is arranged in, described
14 medium position of hand is provided with part of calming the anger, and the part of calming the anger includes the second gas injection chamber 56, sets in the second gas injection chamber 56
It is equipped with the second movable block 58, second movable block 58 is cooperatively connected with the second gas injection chamber 56 sliding, second activity
58 side of block is provided with the second sealing recess portion 53, is provided with the second sealing ring 57 in the second sealing recess portion 53, and described second
The second gas injection chamber 56 is isolated by second sealing ring 57 for movable block 58, and 58 upper end of the second movable block is provided with
Pull rod 52,52 lower end of pull rod are fixedly connected with cooperation, 52 upper end of pull rod and institute with 58 upper surface of the second movable block
14 middle-end of handle to be stated to be cooperatively connected using 51 turn of second hinge, 56 lower end of the second gas injection chamber offers air inlet 55,
It is fixedly installed one-way cock 54 in the air inlet 55, realizes the one-way conduction in the second gas injection chamber 56, the air inlet
55 lower end of hole is connected to the first annular seal space 34, is endlessly infused by the gas injection device 50 into first annular seal space 34
Gas, air pressure constantly increases in the first annular seal space 34, and first movable block 32 is by the first annular seal space 34
Air pressure constantly move to right, to balance the pressure balance in the first annular seal space and first air chamber 31.
Valuably, the pressure overload protection device 70 includes Pressure chamber 79, and 79 lower end of Pressure chamber is provided with closed
Portion 74 is provided with third movable block 78 in the Pressure chamber 79, and 78 upper end of third movable block is set in Pressure chamber 79, institute
It states 78 upper end side of third movable block and is provided with third sealing recess portion 77, be provided with third sealing in the third sealing recess portion 77
Circle 72,78 lower end of third movable block is set in the closed portion 74, the third movable block 78 and the Pressure chamber 79
Sliding is cooperatively connected, and 78 lower end of third movable block is covered with diaphragm seal 73, closed 74 lower end of portion offer lose heart into
Hole 75 is provided on the left of the closed portion 74 to lose heart and portals 76, and the diaphragm seal 73 cooperates with the third movable block 78 by institute
State let out gas entering opening 75 with it is described lose heart in portalling 76 be isolated, the gas entering opening 75 of letting out is connected with the first annular seal space 34, described
Lose heart in portalling and 76 be in communication with the outside, 79 upper end of Pressure chamber is provided with valve port 80, and the valve port 80 is to give the Pressure chamber
79 fill the air of certain pressure.
Valuably, the handle right end is provided with casing 15, and described sleeve pipe 15 and 14 use of handle are threadedly engaged company
It connects, when in use, the extension of handle 14 can be realized by rotating the sleeve 15, when air pressure in first air chamber 31
When strong excessive, increase the torque of handle 14 to reduce force.
Valuably, 11 lower end of frame body, which is provided with, keeps a foothold 16,16 the frame body 11 can be kept to put by described keep a foothold
It is placed in balance when ground.
Specifically used mode is filled with the air of certain pressure into Pressure chamber 79 before using the present apparatus, at this point, the
Three movable blocks 78 are under pressure the pressure of air in storehouse 79, and third movable block 78 is displaced downwardly to 79 lowest positions of Pressure chamber, will let out
Gas import 75 is isolated with air bleed outlets 76, while pressure relief opening 36 being closed, at this point, first annular seal space 34 keeps air-tightness, meanwhile,
15 turn of casing is increased to the length of handle 14, at this point, lift-pull handle 14 up and down, handle 14 is around 13 turn of hinge, while handle
The screw movement up and down of hand 14 drives about 52 pull rod to move repeatedly, while pull rod 52 drives the second movable block 52 to do up and down repeatedly
Movement, and one-way cock 54 ensure that the one-way conduction of air in the second gas injection chamber 56, guarantee will be in the second gas injection chamber 56
Air is endlessly pressed into first annular seal space 34, and the air pressure in first annular seal space 34 is gradually increased at this time, and first
Pressure in seal chamber 34 pushes the second movable block 32 constantly to move to right, while moving to right for the second movable block 32 ensure that the first sealing
Air pressure is consistent with the pressure of the first air chamber 31 in chamber 34, and constantly moving to right for the second movable block 32 drives the first motion bar 35
It moves to right, while the first motion bar 35 has driven determinand clamped on fixture 21 constantly to stretch to the right, at this time first annular seal space
The consistency of the pressure in pressure and the first air chamber 31 in 34 ensure that there is certain pulling force to folded article, when first
When air pressure reaches consistent with the air pressure being pre-charged in Pressure chamber 79 in seal chamber 34, third movable block 78 is by
The pressure effect of air in one seal chamber 34, third movable block 78 moves up, and exposes closed portion 74, lose heart at this time import 75 with lose heart
76 gas connections are exported, first annular seal space 34 starts pressure release, when 34 pressure of first annular seal space drops to air pressure in Pressure chamber 79
When value is following, third movable block 78 again closes closed portion 74, so ensure that the maximum pressure being subject to institute's determinand only
Pressure relief opening 36 is opened, by the high pressure gas in first annular seal space 34 after terminating extension test for pressure value set in advance
Body is released, and the first movable block 32 is moved to left by the air pressure effect in the first air chamber 31 at this time, until the first movable block 32
Initial position is returned to, i.e., first is living when air pressure is consistent with air pressure in the first air chamber 31 in first annular seal space 34
The stopping of motion block 32 moves to left, meanwhile, valve port 80 is opened, air pressure in Pressure chamber 79 is laid down.
The beneficial effects of the present invention are: the configuration of the present invention is simple, easy to operate, only need to be arranged in Pressure chamber in advance certain
The air of pressure value is that third movable block moves down, and closes the gas connection that closed portion completely cuts off lose heart import and air bleed outlets, together
When pressure relief opening is closed, at this point, first annular seal space keep air-tightness, meanwhile, by casing turn increase handle length, at this point,
Upper and lower lift-pull handle, handle is around hinge turn, while the screw movement up and down of handle drives pull rod to move repeatedly up and down, simultaneously
Pull rod drives the second movable block to do and moves repeatedly up and down, and one-way cock ensure that the one-way conduction of air in the second gas injection chamber
Property, guarantee for the air in the second gas injection chamber to be endlessly pressed into first annular seal space, at this time the sky in first annular seal space
Atmospheric pressure is gradually increased, pressure in first annular seal space pushes the second movable block constantly to move to right, while the second movable block moves to right
It ensure that air pressure is consistent with the pressure of the first air chamber in first annular seal space, the second movable block constantly moves to right drive first
Motion bar moves to right, while the first motion bar has driven determinand clamped on fixture constantly to stretch to the right, at this time the first sealing
The consistency of pressure in chamber and the pressure in the first air chamber, which ensure that, has certain pulling force to folded article, when first close
When air pressure reaches consistent with the air pressure being pre-charged in Pressure chamber in envelope chamber, third movable block is by first annular seal space
The pressure of middle air acts on, and third movable block moves up, and exposes closed portion, lose heart at this time import and air bleed outlets gas connection, the
One seal chamber starts pressure release, and when first annular seal space pressure drops in Pressure chamber below air pressure value, third movable block is again
Closed portion is closed, so ensure that the maximum pressure being subject to institute's determinand is only pressure value set in advance, terminating
After extension test, pressure relief opening is opened, the high pressure gas in first annular seal space is released, the first movable block is by the first sky at this time
Air pressure effect in air cavity moves to left, until the first movable block returns to initial position, i.e., in first annular seal space air pressure with
The stopping of the first movable block moves to left when air pressure is consistent in first air chamber, meanwhile, valve port is opened, is laid down in Pressure chamber
Air pressure, present apparatus structure simple operations are convenient, while ensure that preset stretching force value when in use.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection scope should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of tensile strength test device, the stretching device being installed on inside the frame body including frame body and setting is set with installation
It is placed in the gas injection device of the frame body upper end, the stretching device includes the first air being set on the right side of the stretching device
Chamber, the first air chamber left side are provided with the first movable block, and first movable block and first air chamber sliding connect
Cooperation, first movable block side are provided with the first sealing recess portion, are provided with the first sealing ring in the first sealing recess portion,
It is provided with the first motion bar on the left of first movable block, is fixedly connected on the right side of first motion bar with first movable block
Cooperation, first motion bar left end are fixedly installed stretch rod, the stretch rod right end and the fixed company of first motion bar
Connect cooperation, the stretch rod left end is fixedly connected with fixture, offer stretch rod slide opening on the left of the frame body, the stretch rod with
The stretch rod slide opening sliding is cooperatively connected, and offers first annular seal space, the first annular seal space on the left of first movable block
Left side is provided with bracket, and the bracket side is provided with bracket sealing recess portion, and it is close to be provided with bracket in the bracket sealing recess portion
Seal, the first annular seal space lower end are provided with pressure relief opening, are provided with pressure overload protection on the left of the first annular seal space upper end
Device, the first annular seal space upper end right side are provided with gas injection device.
2. a kind of tensile strength test device according to claim 1, it is characterised in that: the gas injection device includes handle
Part and part of calming the anger, the handle portion include handle, the handle and the branch head that upper surface on the left of the frame body is arranged in
It is connected and is cooperated using first axle turn, the middle of the handle position is provided with part of calming the anger, and the part of calming the anger includes second
Gas injection chamber, the second movable block is provided in the second gas injection chamber, and second movable block is matched with the second gas injection chamber sliding
Connection is closed, second movable block side is provided with the second sealing recess portion, is provided with the second sealing in the second sealing recess portion
The second gas injection chamber is isolated by second sealing ring for circle, second movable block, and second movable block upper end is set
Be equipped with pull rod, the pull rod lower end is fixedly connected with cooperation with second movable block upper surface, the pull rod upper end with described
Hand middle-end is cooperatively connected using second hinge turn, and the second gas injection chamber lower end offers air inlet, in the air inlet
It is fixedly installed one-way cock, realizes the intracavitary one-way conduction of second gas injection, the air inlet lower end and described first close
Seal chamber connection.
3. a kind of tensile strength test device according to claim 1, it is characterised in that: the pressure overload protection device
Including Pressure chamber, the Pressure chamber lower end is provided with closed portion, and third movable block is provided in the Pressure chamber, and the third is living
Motion block upper end is set in Pressure chamber, and third movable block upper end side is provided with third sealing recess portion, the third sealing
Third sealing ring is provided in recess portion, third movable block lower end is set in the closed portion, the third movable block with
The Pressure chamber sliding is cooperatively connected, and third movable block lower end is covered with diaphragm seal, and the closed subordinate end, which offers, lets out
Gas entering opening, the closed portion left side, which is provided with to lose heart, portals, and the diaphragm seal and the third movable block cooperate and described will lose heart
Into hole with it is described lose heart portal and be isolated, the gas entering opening of letting out is connected with the first annular seal space, it is described lose heart portal and the external world
Connection, the Pressure chamber upper end are provided with valve port, air of the valve port to fill certain pressure to the Pressure chamber.
4. a kind of tensile strength test device according to claim 2, it is characterised in that: the handle right end is provided with set
Pipe, described sleeve pipe are threadedly engaged with the handle use and connect.
5. a kind of tensile strength test device according to claim 1, it is characterised in that: the frame body lower end is provided with vertical
Foot passes through the balance kept a foothold and can keep the frame body when being placed in ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491043.4A CN108181179B (en) | 2017-12-30 | 2017-12-30 | A kind of tensile strength test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491043.4A CN108181179B (en) | 2017-12-30 | 2017-12-30 | A kind of tensile strength test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108181179A CN108181179A (en) | 2018-06-19 |
| CN108181179B true CN108181179B (en) | 2018-12-14 |
Family
ID=62549454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711491043.4A Active CN108181179B (en) | 2017-12-30 | 2017-12-30 | A kind of tensile strength test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108181179B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089168B (en) * | 2019-12-19 | 2022-04-01 | 西北核技术研究院 | Anti-drop tensile end structure of glass fiber reinforced plastic pull rod |
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| US4332254A (en) * | 1980-11-17 | 1982-06-01 | Advanced Catheter Systems, Inc. | System for filling and inflating and deflating a vascular dilating cathether assembly |
| US7195610B1 (en) * | 2001-09-17 | 2007-03-27 | Cardinal Health 303, Inc. | Pneumatic syringe driver |
| CN102944489A (en) * | 2012-10-22 | 2013-02-27 | 宁波华美达机械制造有限公司 | Force-increasing test apparatus for tensile strength of pull rod |
| US9290222B1 (en) * | 2011-08-18 | 2016-03-22 | Steven D. Kuhl | Adjustable pneumatic bicycle saddle system with improved pump |
| CN205262865U (en) * | 2015-12-30 | 2016-05-25 | 长安大学 | Fibre tensile strength testing arrangement |
| CN206208653U (en) * | 2016-11-22 | 2017-05-31 | 东莞锐标检测技术有限公司 | Tensile strength test device is used in leather detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050042123A1 (en) * | 2003-03-24 | 2005-02-24 | Scott Wu | Apparatus for inflating and deflating |
| US10048217B2 (en) * | 2016-03-11 | 2018-08-14 | Southwest Research Institute | Calibrated volume displacement apparatus and method for direct measurement of specific heat of a gas |
| US20170311616A1 (en) * | 2016-04-29 | 2017-11-02 | Storage Control Systems, Inc. | Atmospheric pressure control system |
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- 2017-12-30 CN CN201711491043.4A patent/CN108181179B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332254A (en) * | 1980-11-17 | 1982-06-01 | Advanced Catheter Systems, Inc. | System for filling and inflating and deflating a vascular dilating cathether assembly |
| US7195610B1 (en) * | 2001-09-17 | 2007-03-27 | Cardinal Health 303, Inc. | Pneumatic syringe driver |
| US9290222B1 (en) * | 2011-08-18 | 2016-03-22 | Steven D. Kuhl | Adjustable pneumatic bicycle saddle system with improved pump |
| CN102944489A (en) * | 2012-10-22 | 2013-02-27 | 宁波华美达机械制造有限公司 | Force-increasing test apparatus for tensile strength of pull rod |
| CN205262865U (en) * | 2015-12-30 | 2016-05-25 | 长安大学 | Fibre tensile strength testing arrangement |
| CN206208653U (en) * | 2016-11-22 | 2017-05-31 | 东莞锐标检测技术有限公司 | Tensile strength test device is used in leather detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108181179A (en) | 2018-06-19 |
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