CN206740528U - A kind of universal tensile testing machine - Google Patents
A kind of universal tensile testing machine Download PDFInfo
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- CN206740528U CN206740528U CN201720582242.5U CN201720582242U CN206740528U CN 206740528 U CN206740528 U CN 206740528U CN 201720582242 U CN201720582242 U CN 201720582242U CN 206740528 U CN206740528 U CN 206740528U
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- testing machine
- tensile testing
- universal tensile
- crossbeam
- clutch gear
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Abstract
The utility model discloses a kind of universal tensile testing machine, including base and power motor, organic frame is fixedly installed on base, two screw mandrels of frame both sides rotation connection, crossbeam is slidably connected between screw mandrel, two clampers for being used for fixation test sample are provided between crossbeam and base, it is characterised in that：Two screw mandrels realize the drive connection of power with power motor by symmetrically arranged transmission component one and transmission component two, and Power Component one includes rotating spindle, the rotate gear for being fixedly connected on rotating spindle end, the clutch gear engaged with rotate gear being connected to by belt on power motor；The adjusting set being fixedly connected on the one end of driven shaft, driven shaft away from screw mandrel that Power Component two includes being rotatably connected on by commutating structure on screw mandrel, clutch gear is set in adjusting set, and adjusting set, which is provided with, makes its transmission regulating part with clutch gear clutch action.Pass through above-mentioned setting, there is provided a kind of universal tensile testing machine for making Levelling operation very easy.
Description
Technical field
Textile lab instrument field is the utility model is related to, more particularly to a kind of universal tensile testing machine.
Background technology
Universal tensile testing machine is applied to the multiple materials such as plastic sheeting, rubber, paper, enamel-covered wire, non-woven fabrics, textile
Experiment, change different fixtures i.e. can be achieved to different materials carry out different tests, so referred to as universal testing machine；Its
In be used for the materials such as textile, non-woven fabrics carry out tension test instrument be referred to as universal tensile testing machine.
Authorization Notice No. is CN205861453U Chinese patent《A kind of electronic fabric strength test machine》Disclose one kind
Universal tensile testing machine with water-proof function, including base and frame, a pair of screw mandrels that frame both sides are provided with, screw mandrel pass through rolling
Pearl is rotatably connected in frame, and crossbeam is slidably connected on screw mandrel, is provided between crossbeam and base for the upper of clamp assay sample
Lower gripper.During test operation, the drive lead screw on both sides need to be controlled while rotated, drive is slidably connected on the crossbeam on screw mandrel
Lower motion, so as to by upper and lower holder by test specimen tension failure.
It just can guarantee that crossbeam is in horizontality because two screw mandrels must keep rotating simultaneously, such scheme uses leading screw
Reach transmission effect with the combined mechanism of ball, but in the long-term use of equipment, not only can be not of uniform size because of frictional force
Cause, also due to the deviation of screw mandrel size itself, produces and accumulate many errors, cause crossbeam both ends present position no longer water
It is flat.
Now general maintenance personal needs comprehensively to overhaul machinery, dismantles frame and screw mandrel and leveling again, into
This is high, very complicated.
Utility model content
The purpose of this utility model is to provide a kind of universal tensile testing machine, can reach simple and easy in equipment leveling
Effect.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of universal tensile experiment
Machine, including base and power motor, organic frame is fixedly installed on base, frame both sides are arranged with two silks of rotation connection
Bar, crossbeam is slidably connected between screw mandrel, below the crossbeam is fixedly connected with the upper clamper for clamp assay sample, upper clamper
Underface be provided with the lower gripper being fixed on base.Power motor by symmetrically arranged two transmission mechanisms respectively with
Two screw mandrel connections, transmission mechanism include transmission component one and transmission component two, and transmission component one includes being connected to by belt
On power motor and synchronous axial system rotating spindle, be fixedly connected on the rotate gear of rotating spindle end, nibbled with rotate gear
The clutch gear of conjunction；Transmission component two includes being rotatably connected on driven shaft on screw mandrel, driven shaft by commutating structure away from silk
The adjusting set being fixedly connected on one end of bar, clutch gear are set in adjusting set, and adjusting set, which is provided with, makes itself and clutch gear
The transmission regulating part of clutch action.
By using above-mentioned technical proposal, when starting power motor, power is transferred to clutch gear by transmission component one
On, now by being driven the regulation of regulating part so that transmission component two and the clamping of transmission component one or disengaging, so as to realize power
Conduction or interruption, can individually drive the screw mandrel on one side to rotate, be finally reached to the crossbeam that is slidably connected on screw mandrel
Leveling works.
It is of the present utility model to be further arranged to：Pressing plate is fixedly installed on adjusting set both sides, pressing plate is arranged at clutch tooth
Wheel both sides simultaneously limit clutch gear axial movement.
By using above-mentioned technical proposal, when clutch gear is with adjusting set clamping or disengaging, the relative of stabilization can be kept
Position, ensure the normal transmission effect of transmission regulating part.
It is of the present utility model to be further arranged to：The inner peripheral surface of clutch gear is provided with equally distributed neck, regulation
Set on set outer circumference surface fluted；Transmission regulating part include be slidably connected in groove projection, run through and be rotationally connected with
Rotary shaft on pressing plate, the one end of rotary shaft away from projection are fixedly connected with the revolving part for rotation tabs.
By using above-mentioned technical proposal, when revolving part rotates up projection, bring it about and tilt and depart from groove, and then
The neck being provided with clutch gear inner periphery abuts, it is achieved thereby that the synchronous axial system of driven shaft and rotating spindle；Revolving part
When being rotated down transmission regulating part, drive projection to be overturn into groove, depart from neck and simultaneously fall after rise in groove, so as to interrupted from
The power of moving axis and rotating spindle part conducts, it is achieved thereby that the clutch action between transmission component one and transmission component two.
It is of the present utility model to be further arranged to：Revolving part includes being fixedly connected with body on the rotating shaft, is wholely set
Claw on body, the spring being fixedly connected on claw, the other end of spring are fixedly connected on pressing plate, also supported on claw
Gag lever post is connected to, the upper end of gag lever post is connected to base on through the upper surface of base and by compression spring.
By using above-mentioned technical proposal, when pressing down on gag lever post, the circumference model of claw rotation is stretched into gag lever post lower end
In enclosing, when claw turns to gag lever post present position, it is connected on gag lever post, so as to be rotated around rotary shaft and drive projection
Fall after rise to chute so that driven shaft disconnects power conduction with clutch gear, and now spring is in extended state.When no longer pressing
During gag lever post, claw, claw rotate gag lever post again under the elastic reaction of spring upwardly and out, drive projection
Tilt and be connected in the neck of clutch gear so that driven shaft realizes synchronous axial system with rotating spindle.
It is of the present utility model to be further arranged to：Power motor uses alternating current servomotor.
By using above-mentioned technical proposal, servomotor, which can be realized, precisely to be started and stops, can be in work or leveling
When control it is more accurate.
It is of the present utility model to be further arranged to：The middle part of crossbeam is provided with supply unit and fan-shaped cavity, is provided with cavity
The metal fixing axle being fixedly connected, be rotatably connected to metal finger in fixing axle, be fixedly connected in the side wall of cavity two sections it is symmetrical
Isometric resistance wire is set, and resistance wire middle position is disconnected, and the bottom sliding of metal finger is connected on resistance wire.Cavity
Top is bright aobvious velocitron provided with energization, and velocitron one end connects fixing axle, other end connection supply unit by wire；And
The other end of the supply unit connects the both ends that resistance wire is apart from each other in cavity sidewalls by conductor in parallel.
By using above-mentioned technical proposal, when crossbeam is in non-standard state, metal finger deflects toward one side, gold
The bottom sliding of category pointer is connected on resistance wire, and the current loop of closure can be formed by now switching on power so that velocitron
It is bright aobvious, remind operating personnel to need to carry out Levelling operation to crossbeam.
It is of the present utility model to be further arranged to：Cavity outer surface is covered with transparent cover body, is carved with below lid and symmetrically sets
The angle index line put, angle index line it is curved arrangement and centre be 0 scale.
By using above-mentioned technical proposal, when metal finger deflects, deflection occurred can be intuitively observed
Angle and direction, personnel or maintenance personal easy to operation carry out leveling work.
In summary, the utility model has the advantages that：By the setting of metal finger in velocitron and cavity,
It can find whether the crossbeam of universal tensile testing machine is in horizontality in time during operation；Need Levelling operation
When, it can realize that individually regulation one side screw mandrel moves up and down by the transmission regulating part set between clutch gear and driven shaft,
Simple and easy, operation is accurate, largely reduces the maintenance maintenance cost of plant equipment.
Brief description of the drawings
Fig. 1 is the isometric views of the present embodiment；
Fig. 2 is the isometric views of base；
Fig. 3 is the isometric views that base does not show top plate, be mainly presented with power motor, rotating spindle, clutch gear, from
Position annexation between moving axis and screw mandrel；
Fig. 4 is the annexation figure between rotate gear, clutch gear, driven shaft, gag lever post and pressing plate；
Fig. 5 is the annexation figure between clutch gear, neck, adjusting set, groove, transmission regulating part and driven shaft；
Fig. 6 is the annexation figure between pressing plate, revolving part and transmission regulating part；
Fig. 7 is enlarged drawing at Fig. 1 B, cavity that major embodiment crossbeam is provided with, fixing axle, pointer, resistance wire, electronics
Position view between lamp.
In figure：1st, base；2nd, power motor；21st, belt；22nd, rotating spindle；221st, rotate gear；3rd, frame；4th, silk
Bar；5th, crossbeam；51st, supply unit；52nd, cavity；521st, fixing axle；522nd, metal finger；523rd, resistance wire；53rd, velocitron；
54th, transparent cover body；541st, angle index line；6th, clutch gear；61st, neck；7th, driven shaft；71st, adjusting set；711st, groove；72、
Pressing plate；73rd, horizontal bevel gear；74th, vertical bevel gear；8th, it is driven regulating part；81st, projection；82nd, rotary shaft；9th, revolving part；91、
Claw；92nd, spring；10th, gag lever post；101st, compression spring；102nd, button.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Specific embodiment is only that it is not to limitation of the present utility model, this area to explanation of the present utility model
Technical staff can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but only
All to be protected in right of the present utility model by Patent Law.
Embodiment：
As shown in Figure 1 and Figure 2：A kind of universal tensile testing machine, including base 1 and power motor 2, it is fixedly installed on base 1
Organic frame 3, the both sides of frame 3 are arranged with a pair of screw mandrels 4 of rotation connection, crossbeam 5, crossbeam 5 and bottom are slidably connected on screw mandrel 4
The upper and lower holder for clamp assay sample is provided between seat 1.Test specimen is fixed on by universal tensile testing machine when running
On clamper, two screw mandrels 4 are driven to rotate in same direction simultaneously by power motor 2 and the mechanism of transmission, it is further to drive horizontal stroke
Beam 5 moves upwards, is also secured to the upper clamper on crossbeam 5 away from lower gripper, completes the stretching to test specimen and make
With.
As shown in Fig. 3~Fig. 5：Power motor 2 is fixed in base 1, and power motor 2 passes through transmission mechanism and two screw mandrels
4 realize that power conducts, and transmission mechanism includes transmission component one and transmission component two.Transmission component one includes connecting by belt 21
On to power motor 2 and a rotating spindle 22 of synchronous axial system, it is fixedly installed on two turning gears at the both ends of rotating spindle 22
Wheel 221, two clutch gears 6 engaged with two rotate gears 221, the both sides of Power Component one are connected with symmetrically arranged two
Power Component two.Driven shaft 7, the driven shaft 7 that Power Component two includes being rotatably connected on by bevel-gear sett on screw mandrel 4 are remote
The adjusting set 71 being fixedly connected on one end of screw mandrel 4, adjusting set 71, which is provided with, adjusts the transmission of itself and the clutch action of clutch gear 6
Save part 8.By being driven the clutch action of regulating part 8, between transmission component one and transmission component two power can transmit also can in
It is disconnected, so as to two screw mandrels 4 can synchronous axial system, also can individually rotate, be finally reached independent regulation crossbeam 5 one end and highly imitated
Fruit.
As shown in Figure 4：Clutch gear 6 is set in adjusting set 71, and the both sides of adjusting set 71 are fixedly installed pressing plate 72, pressing plate
72 are also at the both sides of clutch gear 6 simultaneously, so as to which pressing plate 72 can play the position-limiting action being axially moved to clutch gear 6.
As shown in figure 5, the inner peripheral surface of clutch gear 6 is provided with an equally distributed neck 61 of circle, adjusting set 71 is outside
Fluted 711 are set at circumference, transmission regulating part 8 is slidably connected in groove 711, and transmission regulating part 8 includes being slidably connected at
Projection 81 in groove 711, the rotary shaft 82 for running through and being rotationally connected with pressing plate 72.
As shown in Figure 6：The revolving part 9 for rotary drive regulating part 8 is fixed with rotary shaft 82, revolving part 9 includes solid
The fixed body of revolving part 9 connected on the rotating shaft, the claw 91 being integrally disposed upon on body, the bullet being fixedly connected on claw 91
Spring 92, the other end of spring 92 are fixedly connected on pressing plate 72, and spring 92 is in extended state.
When on claw 91 without external force is applied, revolving part 9 rotates in the presence of spring 92, is now fixedly connected
Rotary shaft 82 on revolving part 9 synchronously rotates, so as to drive the projection 81 being fixedly installed in rotary shaft 82 outwards to turn
Move and tilt, the projection 81 after tilting is connected in neck 61, drives the synchronous axial system of transmission component two and transmission component one.When
When applying position-limiting action to claw 91, revolving part 9 rotates backward while spring 92 is stretched, and final projection 81 departs from card
Groove 61 is slid into groove 711, and Power Component two departs from the interruption that clutch gear 6 realizes power conduction.
As shown in Figure 4：Being abutted on claw 91 has a gag lever post 10, and gag lever post 10 is located in base 1 through the top plate of base 1
Portion, the through hole passed through for gag lever post 10 is provided with the top plate of base 1, compression spring 101 is provided with through hole, compression spring 101
Lower end is fixedly connected in the top plate of base 1, and the upper end of compression spring 101 is fixedly connected on the top of gag lever post 10, gag lever post 10
The button 102 that is provided in round of top.
Keep down pressing gag lever post 10, and the lower end of gag lever post 10 enters in the circumference range that claw 91 rotates, 91 turns of claw
When moving to 10 present position of gag lever post, being connected on gag lever post 10 to be rotated further.With respect to follower lever and turn of adjusting set 71
Dynamic direction, claw 91 drive transmission regulating part 8 to rotate in the opposite direction, projection 81 is departed from neck 61 and slide into cunning
In groove so that the power conduction between Power Component one and Power Component two disconnects, and now spring 92 is in extended state.When not
When pressing gag lever post 10 again, gag lever post 10 resilience and departs from claw 91 under the elastic reaction of compression spring 101, and claw 91 is in bullet
Rotated under the elastic reaction of spring 92, drive projection 81 to tilt and be connected in the neck 61 of clutch gear 6 so that driven shaft
7 realize synchronous axial system with rotating spindle 22.
As shown in Figure 7：The middle part of crossbeam 5 is provided with supply unit 51 and fan-shaped cavity 52, is provided with and is fixedly connected in cavity 52
Fixing axle 521 in crossbeam 5, fixing axle 521 are conductive metal system and are rotatably connected to metal finger 522.Cavity 52
Side wall on be fixedly installed two sections and be symmetrical arranged isometric resistance wire 523, the middle position of resistance wire 523 disconnects, metal finger
The bottom sliding of pin 522 is connected on resistance wire 523.
As shown in Figure 7：The top of cavity 52 is bright aobvious velocitron 53 provided with energization, and the one end of velocitron 53 is connected by wire
Logical fixing axle 521, other end connection supply unit 51；And the other end of supply unit 51 connects the side of cavity 52 by conductor in parallel
The both ends apart from each other of resistance wire 523 on wall so that power supply, resistance wire 523, metal finger 522, fixing axle 521, velocitron 53
Form a current loop.
When universal tensile testing machine is in non-standard state, metal finger 522 is inclined to low one side and is connected to resistance
On silk 523, now current loop closes, and velocitron 53 is bright aobvious, illustrates that universal tensile testing machine needs to carry out Levelling operation.And work as
When universal tensile testing machine is in horizontality, metal finger 522 is located at the interruption of resistance wire 523, and now current loop disconnects,
Velocitron 53 does not show light.
As shown in Figure 7：The outer surface of cavity 52 is additionally provided with a transparent lid and covers cavity 52, is carved with below lid
Symmetrically arranged angle index line 541, angle index line 541 it is curved arrangement and centre be 0 scale.Pass through the setting of graduation mark
522 signified angle index of metal finger can be intuitively observed, so that foundation during leveling, more convenient.
The operation principle of the present embodiment is：
When running universal tensile testing machine, the supply unit 51 that crossbeam 5 is provided with is connected, whether observation velocitron 53 is bright
It is aobvious.If bright aobvious, direction and the angle of throw of pointer are observed, and makees following Levelling operation；If it is aobvious not work, illustrate at equipment
, can be with normal work in horizontality.During Levelling operation, the both ends of crossbeam 5 are judged by the direction and angle of observing throw of pointer
Height, illustrated exemplified by adjusting the relatively low one end of crossbeam 5：
By the gag lever post 10 being provided with below the higher one end of sill 5, make the lower end of gag lever post 10 be maintained at card walk around it is dynamic
In circumference.Now start power motor 2, this relatively low one end of crossbeam 5, power is transferred to transmission component two by transmission component one
On, transmission component two drives screw mandrel 4 to rotate, and crossbeam 5 moves upwards.And one end that crossbeam 5 is higher, transmission component drive transmission group
When part two rotates, because gag lever post 10 is connected on claw 91 so that projection 81, which departs from neck 61, to be fallen after rise to groove 711
In.Adjusting set 71 is changed into rotation connection with clutch gear 6 from clamping, and power can not conduct, so as to this higher one end of crossbeam 5
Screw mandrel 4 will not rotate.
This relatively low one end of crossbeam 5 is during rising, by the angle for observing velocitron 53 and the meaning of metal finger 522
Degree graduation mark 541 may determine that the degree of leveling, the velocitron when metal finger 522 is in 523 center off position of resistance wire
53 do not work it is aobvious, illustrate leveling work completed.
Claims (10)
1. a kind of universal tensile testing machine, including base (1) and power motor (2), organic frame is fixedly installed on the base (1)
(3), frame (3) both sides are arranged with two screw mandrels (4) of rotation connection, and crossbeam is slidably connected on the screw mandrel (4)
(5) the upper clamper for clamp assay sample, the underface of the upper clamper, are fixedly connected with below the crossbeam (5)
It is provided with the lower gripper being fixed on base (1), it is characterised in that：The power motor (2) passes through symmetrically arranged two
Transmission mechanism is connected with two screw mandrels (4) respectively, and the transmission mechanism includes transmission component one and transmission component two, the transmission
Component one includes being connected on power motor (2) and the rotating spindle (22) of synchronous axial system, being fixedly connected on by belt (21)
The rotate gear (221) of rotating spindle (22) end, the clutch gear (6) engaged with the rotate gear (221)；It is described
Driven shaft (7), the driven shaft (7) that transmission component two includes being rotatably connected on by commutating structure on the screw mandrel (4) are remote
The adjusting set (71) being fixedly connected on one end from screw mandrel (4), the clutch gear (6) are set in the adjusting set (71),
The adjusting set (71), which is provided with, makes its transmission regulating part (8) with clutch gear (6) clutch action.
A kind of 2. universal tensile testing machine according to claim 1, it is characterised in that：Adjusting set (71) outer circumference surface
It is upper that fluted (711) are set, pressing plate (72) is further fixedly arranged on adjusting set (71) both sides, the pressing plate (72) is arranged at
Clutch gear (6) both sides simultaneously limit clutch gear (6) axial movement；The transmission regulating part (8) includes being slidably connected at
Projection (81) in the groove (711), the rotary shaft (82) for running through and being rotationally connected with the pressing plate (72), the rotation
The one end of axle (82) away from the projection (81) is fixedly connected with the revolving part (9) for rotating the projection (81).
A kind of 3. universal tensile testing machine according to claim 2, it is characterised in that：The inner circle of the clutch gear (6)
Week is provided with multiple equally distributed necks (61), and the projection (81) departs from groove under the rotary action of the revolving part (9)
(711) it is connected to after in the neck (61).
A kind of 4. universal tensile testing machine according to claim 3, it is characterised in that：The revolving part (9) includes fixing
Connection body on the rotating shaft, the claw (91) being integrally disposed upon on body, the bullet being fixedly connected on the claw (91)
Spring (92), the other end of the spring (92) are fixedly connected on pressing plate (72).
A kind of 5. universal tensile testing machine according to claim 4, it is characterised in that：Also being abutted on the claw (91) has
Gag lever post (10), gag lever post (10) upper end through the upper surface of base (1) and are connected to base by compression spring (101)
(1) on.
A kind of 6. universal tensile testing machine according to claim 1, it is characterised in that：The power motor (2) is using friendship
Flow electric servomotor.
A kind of 7. universal tensile testing machine according to claim 1, it is characterised in that：Electricity is provided with the middle part of the crossbeam (5)
Source device (51) and fan-shaped cavity (52), the cavity (52) is interior to be provided with the fixing axle (521) being fixedly connected on crossbeam (5),
Metal finger (522) is rotatably connected on the fixing axle (521).
A kind of 8. universal tensile testing machine according to claim 7, it is characterised in that：It is solid in the side wall of the cavity (52)
Surely the resistance wire (523) that two sections of symmetric equal-lengths are set is connected, resistance wire (523) middle position disconnects, the metal finger
Pin (522) sliding is connected on resistance wire (523), the resistance wire (523) both ends apart from each other and the supply unit
(51) it is in parallel.
A kind of 9. universal tensile testing machine according to claim 8, it is characterised in that：The top of the cavity (52) is provided with
Energization is bright aobvious velocitron (53), and described velocitron (53) one end connects fixing axle (521), other end connection electricity by wire
Source device (51).
A kind of 10. universal tensile testing machine according to claim 9, it is characterised in that：Cavity (52) the appearance cover
Provided with transparent cover body (54), symmetrically arranged angle index line (541), the angle index line are carved with below the lid
(541) it is curved arrangement and centre be 0 scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582242.5U CN206740528U (en) | 2017-05-18 | 2017-05-18 | A kind of universal tensile testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582242.5U CN206740528U (en) | 2017-05-18 | 2017-05-18 | A kind of universal tensile testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206740528U true CN206740528U (en) | 2017-12-12 |
Family
ID=60567766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720582242.5U Active CN206740528U (en) | 2017-05-18 | 2017-05-18 | A kind of universal tensile testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206740528U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051301A (en) * | 2018-01-30 | 2018-05-18 | 海宁市力天袜业有限公司 | A kind of mechanical stocking stretching tester |
| CN108152144A (en) * | 2017-12-26 | 2018-06-12 | 方圆广电检验检测股份有限公司 | Exert a force detection device and force test method |
| CN110595759A (en) * | 2019-10-22 | 2019-12-20 | 浙江西沃电梯有限公司 | Safety performance detection device for elevator safety gear |
-
2017
- 2017-05-18 CN CN201720582242.5U patent/CN206740528U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152144A (en) * | 2017-12-26 | 2018-06-12 | 方圆广电检验检测股份有限公司 | Exert a force detection device and force test method |
| CN108152144B (en) * | 2017-12-26 | 2020-06-16 | 方圆广电检验检测股份有限公司 | Force application detection device and force application test method |
| CN108051301A (en) * | 2018-01-30 | 2018-05-18 | 海宁市力天袜业有限公司 | A kind of mechanical stocking stretching tester |
| CN110595759A (en) * | 2019-10-22 | 2019-12-20 | 浙江西沃电梯有限公司 | Safety performance detection device for elevator safety gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A universal tensile testing machine Effective date of registration: 20230209 Granted publication date: 20171212 Pledgee: Bank of China Limited Jiande Sub-branch Pledgor: ZHEJIANG HONGDU BEDDING Co.,Ltd. Registration number: Y2023330000331 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |