CN203584044U - Lock with screw rod adjusting characteristics - Google Patents

Lock with screw rod adjusting characteristics Download PDF

Info

Publication number
CN203584044U
CN203584044U CN201320735574.4U CN201320735574U CN203584044U CN 203584044 U CN203584044 U CN 203584044U CN 201320735574 U CN201320735574 U CN 201320735574U CN 203584044 U CN203584044 U CN 203584044U
Authority
CN
China
Prior art keywords
rod
adjusting screw
screw
screw rod
lockset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201320735574.4U
Other languages
Chinese (zh)
Inventor
张宗志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai One Top Corp
Original Assignee
Shanghai One Top Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai One Top Corp filed Critical Shanghai One Top Corp
Priority to CN201320735574.4U priority Critical patent/CN203584044U/en
Application granted granted Critical
Publication of CN203584044U publication Critical patent/CN203584044U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

Links

Images

Landscapes

  • Magnetically Actuated Valves (AREA)

Abstract

The utility model discloses a lock with screw rod adjusting characteristics. The lock comprises a lock shell (21), a main shaft (22), a lock catch (23), an adjusting screw rod (241), an adjusting block (242), a solenoid (26) and a reset spring (25), wherein the main shaft (22) is fixed in the lock shell, the lock catch (23) is capable of rotating around the main shaft, the adjusting screw rod (241) extends parallel to the main shaft, the adjusting block (242) is arranged on the adjusting screw rod in a sleeved mode and is capable of moving in the axial direction of the adjusting screw rod when the adjusting screw rod rotates around an axis, the solenoid (26) is provided with a spindle (261), and the reset spring (25) acts at one end of the adjusting screw rod to enable the other end of the adjusting screw rod to make contact with the spindle of the solenoid. The adjusting block can move synchronously with the adjusting screw rod when the adjusting screw rod carries out linear motion, and one end of the adjusting block is matched with an adjusting block limit structure (243) fixed in the lock shell to prevent the adjusting block from rotating around the adjusting screw rod. According to the lock, the supporting effect of the lock catch is enhanced, original lever type supporting is avoided, the tensile force of the lock is enhanced, and the adjustment of normally open and normally close modes is easier and more convenient.

Description

There is the lockset of screw rod adjustment feature
Technical field
The utility model relates to a kind of lock, relates in particular to a kind of lockset with screw rod adjustment feature.
Background technology
Fig. 1 and Fig. 2 illustrate a kind of existing lock with normally-open normally-close mode tuning function.The snap close 13 that this lock comprises lock housing 11, is fixed on the main shaft (not shown) in lock housing 11 and can rotates around main shaft.This lock also comprises the dumbbell shape regulating part 14 extending in parallel with main shaft 12, dumbbell shape regulating part 14 comprises stem portion and two regulating blocks that axial length is different that are separately fixed at stem portion two ends, and the axial length of the first regulating block is greater than the axial length of the second regulating block.Fig. 1 illustrates that this lock with normally-open normally-close mode tuning function is set in normally closed pattern, the free end of the first regulating block of dumbbell shape regulating part 14 is subject to the effect of back-moving spring 15, and the free end of the second regulating block of dumbbell shape regulating part 14 is contacted with the axle 161 of solenoid 16 all the time.During solenoid 16 power-off, the reset response that dumbbell shape regulating part 14 is subject to back-moving spring 15 is pressed against in the axle 161 of solenoid 16, makes the axle 161 of solenoid 16 in retracted position, the position of the first regulating block of dumbbell shape regulating part 14 in braking snap close 13; When solenoid 16 is switched on, the axle 161 of solenoid 16 is stretched out, under the effect of axle 16, dumbbell shape regulating part 14 is to the direction motion away from solenoid 16, thus the position of the first regulating block that makes dumbbell shape regulating part 14 in releasable catch 13, compression reseting spring 15 simultaneously.Fig. 2 illustrates that this lock with normally-open normally-close mode tuning function is set in normal on-mode, the free end of the second regulating block of dumbbell shape regulating part 14 is subject to the effect of back-moving spring 15, and the free end of the first regulating block of dumbbell shape regulating part 14 is contacted with the axle 161 of solenoid 16 all the time.During solenoid 16 power-off, the reset response that dumbbell shape regulating part 14 is subject to back-moving spring 15 is pressing the axle 161 of solenoid 16, makes the axle 161 of solenoid 16 in retracted position, the position of the first regulating block of dumbbell shape regulating part 14 in releasable catch 13; When solenoid 16 is switched on, the axle 161 of solenoid 16 is stretched out, the position of the first regulating block of dumbbell shape regulating part 14 in braking snap close 13 under the effect of axle 161.
Visible, the existing lock with normally-open normally-close mode tuning function is changed normally-open normally-close pattern by dumbbell shape regulating part 14.In order to convert another kind of pattern to from a kind of pattern, first by being positioned at back-moving spring 15, away from the end cap 17 at the place, one end of dumbbell shape regulating part 14, take off, back-moving spring 15 and dumbbell shape regulating part 14 are taken out from lock housing 11, by dumbbell shape regulating part 14 around axially packing lock housing 11 into after 180 ° of vertical direction rotations with self, then pack back-moving spring 15 into, finally cover end cap 17, pattern converts.Therefore, the normally-open normally-close mode tuning complexity of the existing lock with normally-open normally-close mode tuning function, needs dismounting parts, inconvenience.In addition, dumbbell shape regulating part 14 is stressed is lever, and easy stress deformation also causes lock housing 11 to be damaged, and the spring on dumbbell shape regulating part 14 also exists the hidden danger of stress deformation simultaneously.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of lockset with screw rod adjustment feature.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
Have a lockset for screw rod adjustment feature, the snap close that comprise lock housing, be fixed on main shaft in lock housing, can rotate around main shaft, the adjusting screw(rod) extending in parallel with main shaft, being nested with on adjusting screw(rod) and when adjusting screw(rod) pivots can be along the regulating block of adjusting screw(rod) axially-movable, have the solenoid of axle and act on the back-moving spring that on adjusting screw(rod) one end, the adjusting screw(rod) other end and solenoidal axle is kept in touch.Wherein, regulating block can be synchronized with the movement with it when adjusting screw(rod) linear movement, one end of regulating block be fixed on regulating block limiting structure in lock housing and match and stop regulating block to rotate around adjusting screw(rod).
For the above-mentioned lockset with screw rod adjustment feature, adjusting screw(rod) is provided with external screw thread, and regulating block is provided with internal thread, and adjusting screw(rod) passes regulating block and external screw thread and internal thread and matches.
For the above-mentioned lockset with screw rod adjustment feature, regulating block can be provided with in the scope of continuous thread with respect to adjusting screw(rod) axially-movable when adjusting screw(rod) pivots on adjusting screw(rod).
For the above-mentioned lockset with screw rod adjustment feature, regulating block is meshed with the regulating block limiting structure being fixed in lock housing away from one end of snap close.
For the above-mentioned lockset with screw rod adjustment feature, regulating block away from one end of snap close is and the fin of the axially parallel of adjusting screw(rod), and regulating block limiting structure is and the groove of the axially parallel of adjusting screw(rod).
The above-mentioned lockset with screw rod adjustment feature also comprises the regulating sleeve that is positioned at back-moving spring one end, and adjusting screw(rod) inserts regulating sleeve away from solenoidal end from axially extended hole in regulating sleeve.
For the above-mentioned lockset with screw rod adjustment feature, the end that adjusting screw(rod) inserts in regulating sleeve is subject to axially extended hole restriction in regulating sleeve, can either be along with regulating sleeve synchronous rotary, and again can be with respect to regulating sleeve axially-movable.
For the above-mentioned lockset with screw rod adjustment feature, the cross section that extends axially hole of regulating sleeve is larger at the diameter of corresponding position away from the cross section of solenoidal end than adjusting screw(rod).
For the above-mentioned lockset with screw rod adjustment feature, regulating sleeve periphery is also equipped with locating ring, and locating ring is coated with annular pressing plate with the axial vertical lateral wall of adjusting screw(rod), and locating ring and annular pressing plate are fixed in lock housing.
For the above-mentioned lockset with screw rod adjustment feature, regulating sleeve is fixed on locating ring by set screw.
Compared with prior art, the main advantage of technical solutions of the utility model is as follows:
Lockset of the present utility model is because regulating block one end is subject to the support of regulating block limiting structure, so strengthened the support effect of snap close, avoided the lever of original dumbbell shape regulating part to support, strengthen the pulling force of lock, also avoided the hidden danger of original spring stress distortion on dumbbell shape regulating part simultaneously; The adjusting of normally-open normally-close pattern is more simple and convenient, only needs rotation adjusting screw(rod), needn't take out regulating block.
Accompanying drawing explanation
Fig. 1 illustrates locking state when a kind of existing lockset with screw rod adjustment feature is set as normally closed pattern;
Fig. 2 illustrates unlocking condition when this existing lockset with screw rod adjustment feature is set as normal on-mode shown in Fig. 1;
Fig. 3 illustrates the locking state when lockset with screw rod adjustment feature described in embodiment of the utility model is set as normally closed pattern;
Fig. 4 is the viewgraph of cross-section of the lockset with screw rod adjustment feature shown in Fig. 3 along line C-C;
Fig. 5 is the right view of the lockset with screw rod adjustment feature shown in Fig. 3;
Fig. 6 illustrates the unlocking condition when lockset with screw rod adjustment feature shown in Fig. 3 is set as normally closed pattern.
Fig. 7 illustrates the unlocking condition when lockset with screw rod adjustment feature shown in Fig. 3 is set as normal on-mode.
The specific embodiment
As shown in Figure 3 and Figure 4, the snap close 23 that the lockset with screw rod adjustment feature described in embodiment of the utility model comprises lock housing 21, is fixed on the main shaft 22 in lock housing 21 and can rotates around main shaft 22.This lockset also comprises the adjusting screw(rod) 241 that extends in parallel with main shaft 22, being sleeved on adjusting screw(rod) 241 and when adjusting screw(rod) 241 pivots can be along the regulating block 242 of adjusting screw(rod) 241 axially-movables, have the solenoid 26 of axle 261 and act on the back-moving spring 25 that on adjusting screw(rod) 241 one end, the axle 261 of adjusting screw(rod) 241 other ends and solenoid 26 is kept in touch.Wherein, regulating block 242 can be synchronized with the movement with it when adjusting screw(rod) 241 linear movement, one end of regulating block 242 be fixed on regulating block limiting structure 243 in lock housing 21 and match and stop regulating block 242 to rotate around adjusting screw(rod) 241.
Adjusting screw(rod) 241 is provided with external screw thread, and regulating block 242 is provided with internal thread, and adjusting screw(rod) 241 is through regulating block 242, and both match by screw thread.When adjusting screw(rod) 241 pivots, regulating block 242 can be provided with in the scope of continuous thread with respect to adjusting screw(rod) 241 axially-movables on adjusting screw(rod) 241.Adjusting screw(rod) 241 is provided with the ring-type shaft shoulder from its periphery outwardly convex away from the end of solenoid 26, is nested with at the back-moving spring 25 of adjusting screw(rod) 241 peripheries and is stuck between the shaft shoulder of adjusting screw(rod) 241 and the axial vertical and fixing sidewall with respect to adjusting screw(rod) 241.
Regulating block 242 matches with the configuration of snap close 23 near the configuration of one end of snap close 23, regulating block 242 during in snap close application position regulating block 242 stop snap close 23 to the interior revolution of lock housing 21, regulating block 242 during in snap close off-position snap close 23 can freely be turned back in lock housing 21.Regulating block 242 is meshed with the regulating block limiting structure 243 being fixed in lock housing 21 away from one end of snap close 23, for example regulating block 242 away from one end of snap close 23 is and the fin of the axially parallel of adjusting screw(rod) 241, correspondingly, regulating block limiting structure 243 is and the groove of the axially parallel of adjusting screw(rod) 241.
Preferably, the lockset with screw rod adjustment feature of this embodiment also comprises the regulating sleeve 28 that is positioned at back-moving spring 25 one end, therefore in the situation that being provided with regulating sleeve 28, back-moving spring 25 can be stuck in the shaft shoulder of adjusting screw(rod) 241 and regulating sleeve 28 towards between the sidewall of solenoid 26.Adjusting screw(rod) 241 inserts regulating sleeve 28 away from the end of solenoid 26 from the interior axially extended hole of regulating sleeve 28, the end that adjusting screw(rod) 241 inserts in regulating sleeve 28 is subject to the interior axially extended hole restriction of regulating sleeve 28, cannot rotate with respect to regulating sleeve 28, but can be with respect to regulating sleeve 28 axially-movables, adjusting screw(rod) 241 is inserted to end in regulating sleeve 28 and the cross section that extends axially hole of regulating sleeve 28 for this reason and be all set to approximate half-circular, oval, rectangle, triangle or irregularly shaped etc., as shown in Figure 5, the cross section that is to say them can be for making adjusting screw(rod) 241 insert that end in regulating sleeve 28 cannot rotate with respect to regulating sleeve 28 but can be with respect to any shape of regulating sleeve 28 axially-movables.And, the cross section that extends axially hole of regulating sleeve 28 is slightly larger at the diameter of corresponding position away from the cross section of the end of solenoid 26 than adjusting screw(rod) 241, so that adjusting screw(rod) 241 can either be along with regulating sleeve 28 synchronous rotaries, again can be with respect to regulating sleeve 28 axial free movements.
More preferably, regulating sleeve 28 peripheries are also equipped with locating ring 281, and locating ring 281 is coated with annular pressing plate 282 with the axial vertical lateral wall of adjusting screw(rod) 241.The lateral wall of regulating sleeve 28 also can have part surface to be blocked by annular pressing plate 282, and the remainder of the lateral wall of regulating sleeve 28 exposes to rotate adjusting from the through hole of annular pressing plate 282.Locating ring 281 and annular pressing plate 282 are for example screwed in lock housing 21, and regulating sleeve 28 is fixed on locating ring 282 by set screw 283, have so just avoided regulating sleeve 28 to be rotated unintentionally adjusting, as shown in Figure 5.Regulating sleeve 28 can freely rotate in the situation that set screw 283 unclamps.
Below, the operating principle of the lockset with screw rod adjustment feature to this embodiment describes.
As shown in Figure 6, when solenoid 26 is switched on, the axle 261 of solenoid 26 is stretched out and is promoted adjusting screw(rod) 241, compression reseting spring 25, regulating block 242, along with adjusting screw(rod) 241 is to being synchronized with the movement away from the direction of solenoid 26, moves to snap close off-position from snap close application position, and realization is unblanked.As shown in Figure 3, during solenoid 26 power-off, adjusting screw(rod) 241 under the effect of back-moving spring 25 near the direction rectilinear motion of solenoid 26, adjusting screw(rod) 241 is pressed the axle of solenoid 26 261 to return, regulating block 242 is along with adjusting screw(rod) 241 is synchronized with the movement, from snap close off-position, move to snap close application position, realization is locked.Otherwise operating principle when lockset is set in normal on-mode and while being set in normally closed pattern is similar.
The transfer process of the lockset with screw rod adjustment feature of this embodiment between normal on-mode and normally closed pattern is as follows:
Suppose as shown in Figure 3, the lockset of this embodiment is current is set in normally closed pattern, be converted into normal on-mode, first set screw 283 is unclamped, then the through hole from annular pressing plate 282 along a direction ratio as counter clockwise direction rotary regulating sleeve 28, at this moment regulating sleeve 28 drives adjusting screw(rod) 241 to rotate, adjusting screw(rod) 241 drives regulating block 242 to move to the direction near solenoid 26 simultaneously, until regulate, put in place, for example, while feeling to have larger resistance till, at this moment lock is set as normally open, then set screw 283 is tightened, as shown in Figure 7.Otherwise, when lockset of the present utility model is converted to normally closed pattern from normal on-mode, from the different opposite directions that are only to rotate adjusting screw(rod) 3 that are converted to from normally closed pattern between normal on-mode, such as clockwise direction.

Claims (10)

1. one kind has the lockset of screw rod adjustment feature, this lockset comprises lock housing (21), the snap close (23) that is fixed on the main shaft (22) in lock housing (21) and can rotates around main shaft (22), it is characterized in that, this lockset also comprises the adjusting screw(rod) (241) extending in parallel with main shaft (22), be nested with upper at adjusting screw(rod) (241) and can be along the regulating block (242) of adjusting screw(rod) (241) axially-movable when adjusting screw(rod) (241) pivots, there is the solenoid (26) of axle (261), and act on the back-moving spring (25) that on adjusting screw(rod) (241) one end, the axle (261) of adjusting screw(rod) (241) other end and solenoid (26) is kept in touch, wherein, regulating block (242) can be synchronized with the movement with it when adjusting screw(rod) (241) linear movement, one end of regulating block (242) regulating block limiting structure (243) interior with being fixed on lock housing (21) matches and stops regulating block (242) to rotate around adjusting screw(rod) (241).
2. there is as claimed in claim 1 the lockset of screw rod adjustment feature, it is characterized in that, adjusting screw(rod) (241) is provided with external screw thread, and regulating block (242) is provided with internal thread, and adjusting screw(rod) (241) passes regulating block (242) and external screw thread and internal thread and matches.
3. there is as claimed in claim 1 the lockset of screw rod adjustment feature, it is characterized in that, regulating block (242) can be provided with in the scope of continuous thread with respect to adjusting screw(rod) (241) axially-movable when adjusting screw(rod) (241) pivots on adjusting screw(rod) (241).
4. the lockset as claimed in claim 1 with screw rod adjustment feature, is characterized in that, regulating block (242) is meshed with the regulating block limiting structure (243) being fixed in lock housing (23) away from one end of snap close (23).
5. there is as claimed in claim 4 the lockset of screw rod adjustment feature, it is characterized in that, regulating block (242) away from one end of snap close (23) is and the fin of the axially parallel of adjusting screw(rod) (241), and regulating block limiting structure (243) is and the groove of the axially parallel of adjusting screw(rod) (241).
6. there is as claimed in claim 1 the lockset of screw rod adjustment feature, it is characterized in that, also comprise the regulating sleeve (28) that is positioned at back-moving spring (25) one end, adjusting screw(rod) (241) inserts regulating sleeve (28) away from the end of solenoid (26) from the interior axially extended hole of regulating sleeve (28).
7. there is as claimed in claim 6 the lockset of screw rod adjustment feature, it is characterized in that, the end that adjusting screw(rod) (241) inserts in regulating sleeve (28) is subject to axially extended hole restriction in regulating sleeve (28), can either be along with regulating sleeve (28) synchronous rotary, again can be with respect to regulating sleeve (28) axially-movable.
8. the lockset as described in claim 6 or 7 with screw rod adjustment feature, is characterized in that, the cross section that extends axially hole of regulating sleeve (28) is larger at the diameter of corresponding position away from the cross section of the end of solenoid (26) than adjusting screw(rod) (241).
9. as described in claim 6 or 7, there is the lockset of screw rod adjustment feature, it is characterized in that, regulating sleeve (28) periphery is also equipped with locating ring (281), locating ring (281) is coated with annular pressing plate (282) with the axial vertical lateral wall of adjusting screw(rod) (241), and locating ring (281) and annular pressing plate (282) are fixed in lock housing (21).
10. the lockset as claimed in claim 9 with screw rod adjustment feature, is characterized in that, regulating sleeve (28) is fixed on locating ring (282) by set screw (283).
CN201320735574.4U 2013-09-02 2013-11-19 Lock with screw rod adjusting characteristics Withdrawn - After Issue CN203584044U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320735574.4U CN203584044U (en) 2013-09-02 2013-11-19 Lock with screw rod adjusting characteristics

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201320542845.4 2013-09-02
CN201320542845 2013-09-02
CN201320735574.4U CN203584044U (en) 2013-09-02 2013-11-19 Lock with screw rod adjusting characteristics

Publications (1)

Publication Number Publication Date
CN203584044U true CN203584044U (en) 2014-05-07

Family

ID=50581983

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320735574.4U Withdrawn - After Issue CN203584044U (en) 2013-09-02 2013-11-19 Lock with screw rod adjusting characteristics

Country Status (1)

Country Link
CN (1) CN203584044U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103590668A (en) * 2013-09-02 2014-02-19 上海欧一安保器材有限公司 Lock with screw rod adjusting characteristic
CN104278894A (en) * 2014-09-22 2015-01-14 上海欧一安保器材有限公司 Cathode lock and method for switching normally open state and normally closed state of cathode lock
CN107013103A (en) * 2017-03-22 2017-08-04 杭州科安辐射防护工程有限公司 A kind of nuclear radiation excess self-locking protective door

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103590668A (en) * 2013-09-02 2014-02-19 上海欧一安保器材有限公司 Lock with screw rod adjusting characteristic
CN103590668B (en) * 2013-09-02 2017-10-03 上海欧一安保器材有限公司 The lockset of feature is adjusted with screw rod
CN104278894A (en) * 2014-09-22 2015-01-14 上海欧一安保器材有限公司 Cathode lock and method for switching normally open state and normally closed state of cathode lock
WO2016045643A1 (en) * 2014-09-22 2016-03-31 上海欧一安保器材有限公司 Cathode lock and method allowing the cathode lock to switch between normally-opened state and normally-closed state
GB2545383A (en) * 2014-09-22 2017-06-14 Shanghai Onetop Corp Cathode lock and method allowing the cathode lock to switch between normally-opened state and normally-closed state
AU2015320101B2 (en) * 2014-09-22 2018-08-16 Shanghai Onetop Corporation Cathode lock and method allowing the cathode lock to switch between normally-opened state and normally-closed state
CN104278894B (en) * 2014-09-22 2019-01-11 上海欧一安保器材有限公司 Cathode lock and the method for making cathode lock switching normally open and normally off
US10519695B2 (en) 2014-09-22 2019-12-31 Shanghai One Top Corporation Cathode lock and method allowing the cathode lock to switch between normally-opened state and normally-closed state
GB2545383B (en) * 2014-09-22 2021-01-06 Shanghai Onetop Corp Cathode lock and method for swtiching the cathode lock from normally-opened state and normally-closed state
CN107013103A (en) * 2017-03-22 2017-08-04 杭州科安辐射防护工程有限公司 A kind of nuclear radiation excess self-locking protective door
CN107013103B (en) * 2017-03-22 2019-08-13 科安环境工程技术有限公司 A kind of nuclear radiation excess self-locking protective door

Similar Documents

Publication Publication Date Title
CN203584044U (en) Lock with screw rod adjusting characteristics
CN103590668A (en) Lock with screw rod adjusting characteristic
CN201003335Y (en) Rotary door locking device
CN203229808U (en) Hanger bar positioning device for garment steamer
CN109382780A (en) Torque adjusting device
CN208010112U (en) A kind of Double-lock-core Electric cabinet lock
CN203189860U (en) Simple type anti-dismantling ball valve
CN202612449U (en) Manual adjusting arm capable of dead locking adjusting shaft and worm
CN206530173U (en) A kind of springlock
CN201416662Y (en) Lock valve
CN202241099U (en) Three-jaw puller for dismounting part on shaft through small deep hole
CN201043379Y (en) Theft-proof lock
CN204857496U (en) Energy storage electricity behaviour device
CN206859851U (en) Intelligent lock handle reversing arrangement
CN202441141U (en) Two-way crescent lock
CN210979155U (en) Special calculator fixing device of engineering cost
CN203880134U (en) Plug valve lock
CN202689714U (en) Mechanical cipher lock core and door lock with lock core
CN202530851U (en) Lock cylinder shifting block positioning device
CN204114320U (en) Valve for guarding against theft
CN204175024U (en) With the Lock cylinder cover of rotational structure
CN203145599U (en) Cylinder or lock
CN203384170U (en) Loosening-stroke-limited locking device and leg tube of photography tripod
CN103527841B (en) A kind of magnetic locking valve
CN203291465U (en) Folding mechanism of inversion machine

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20140507

Effective date of abandoning: 20171003

AV01 Patent right actively abandoned