CN112780111A - Tensioning lock with safety function - Google Patents

Tensioning lock with safety function Download PDF

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Publication number
CN112780111A
CN112780111A CN202110176738.3A CN202110176738A CN112780111A CN 112780111 A CN112780111 A CN 112780111A CN 202110176738 A CN202110176738 A CN 202110176738A CN 112780111 A CN112780111 A CN 112780111A
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CN
China
Prior art keywords
lock
lock cylinder
shell
rod
pin
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.)
Pending
Application number
CN202110176738.3A
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Chinese (zh)
Inventor
周发展
王金平
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.)
Suzhou D Snap Technologies Co ltd
Original Assignee
Suzhou D Snap Technologies Co ltd
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 Suzhou D Snap Technologies Co ltd filed Critical Suzhou D Snap Technologies Co ltd
Priority to CN202110176738.3A priority Critical patent/CN112780111A/en
Publication of CN112780111A publication Critical patent/CN112780111A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/10Bolts of locks or night latches
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices

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  • Lock And Its Accessories (AREA)

Abstract

A tensioning lock with a safety function comprises a lock shell, a lock cylinder cover, a lock cylinder sleeve, a lock rod and a lock tongue; the lock core is arranged in the lock shell in a penetrating way and only rotates; the upper end of the lock core is convexly provided with an acting part, and the lock core cover is sleeved on the acting part; the lock cylinder sleeve is sleeved on the lock cylinder and fixedly arranged on the lock shell; the lock rod is arranged in the lock core in a penetrating way, and the lower part of the lock rod is fixedly connected with the lock tongue; the pin body is horizontally arranged in the lock rod in a penetrating way, and the end part of the pin body extends out of the outer side of the lock rod; the lock core is provided with a chute, the end part of the pin body extends into the chute, and when the lock core rotates, the lock rod is driven to move in the vertical direction through the matching of the pin body and the chute; the lock cylinder sleeve is provided with an elongated slot at the periphery, the elongated slot is horizontally arranged, and one end of the elongated slot is upwards connected with a vertical slot. The invention has the advantages of ingenious design, convenient unlocking and locking operation, smooth operation process, strong tension of the tensioning lock during locking, and capability of ensuring the reliability and stability of the locking state of the tensioning lock.

Description

Tensioning lock with safety function
Technical Field
The invention relates to a lock, in particular to a tension lock with a safety function for industries of rail transit, wind power generation, communication equipment and the like. The rotating tongue of the lock has a locking function and a tensioning function, and can be applied to a door body, a window body, a cabinet body and the like.
Background
Industrial locks are widely used for locking door bodies or window bodies on vehicles or equipment in the industries of rail transit, wind power generation, communication equipment and the like. The Chinese patent CN2549104Y discloses an invention patent named as retractable lock bolt door lock. The patent door lock comprises a lock shell, an outer guide sleeve, an inner guide sleeve, a lock cylinder, a rotating shaft, a pin, a lock tongue and other parts, wherein a set of spiral guide mechanism is arranged in the lock shell, and the guide mechanism is formed by penetrating and closing the outer guide sleeve, the inner guide sleeve and the rotating shaft through the pin. The lock is designed aiming at a tight door cabinet, wherein a lock tongue (a rotating tongue) has double functions of locking and tensioning, but has the defects that a lock core lacks an effective locking mechanism, the lock tongue is easy to rotate due to misoperation, certain potential safety hazards exist, namely, the door panel is not reliably locked by the tensioning lock, and the safety is poor; further, the convenience of the unlocking and locking operations is yet to be improved.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The invention aims to provide a tensioning lock with a safety function.
In order to achieve the purpose, the invention adopts the technical scheme that:
a tensioning lock with a safety function comprises a lock shell, a lock cylinder cover, a lock cylinder sleeve, a lock rod and a lock tongue;
the lock core penetrates and is arranged in the lock shell in the vertical direction, and the lock core and the lock shell are in sealing fit and only rotate relative to the lock shell through limiting; the upper end of the lock core is provided with an acting part in an upward convex manner, and the lock core cover is sleeved on the acting part and positioned in a through hole at the upper end of the lock shell; the action part is also sleeved with a first spring, and the first spring acts between the lock cylinder cover and the lock cylinder to keep the lock cylinder cover in an upward displacement trend;
the upper end surface of the lock shell, the upper surface of the lock cylinder cover and the upper end surface of the action part of the lock cylinder are all positioned on the same horizontal plane in the locking state and the unlocking state of the tensioning lock;
the lock cylinder sleeve is sleeved on the lock cylinder and fixedly arranged on the inner wall of the lock shell;
the lock rod penetrates in the lock cylinder in the vertical direction, the lower part of the lock rod is fixedly connected with the lock tongue, and the lock tongue is horizontally arranged;
the lock rod is characterized by also comprising a pin body, wherein the pin body is horizontally arranged in the lock rod in a penetrating way, and the end part of the pin body extends out of the outer side of the lock rod;
the lock cylinder is characterized in that the periphery of the lock cylinder is provided with a chute, and the end part of the pin body extends into the chute in the assembly state of the lock rod and the lock cylinder, so that the lock rod is driven to move in the vertical direction through the matching of the pin body and the chute when the lock cylinder rotates; in the unlocking state, the end part of the pin body is positioned at the second end of the chute; in a locking state, the end part of the pin body is positioned at the first end of the chute;
the periphery of the lock cylinder sleeve is also provided with a long groove, the long groove is horizontally arranged, and one end of the long groove is upwards provided with a vertical groove; in the unlocking state, the end part of the pin body is positioned in the long groove; in the locked state, the end of the pin body is located in the vertical slot.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, in the vertical direction, the first end of the chute is located above the second end; in the horizontal direction, the first end of the chute is positioned at the right side of the second end;
the vertical groove is connected with the left end of the long groove.
2. In the scheme, the lock shell further comprises a pair of first knurling pins, and the two first knurling pins are symmetrically arranged on the side part of the upper end of the lock shell in a penetrating mode along the horizontal direction; the lock cylinder cover corresponds first annular knurl round pin is equipped with the groove of stepping down, first annular knurl round pin stretches into in the groove of stepping down, constitute the rotation that first annular knurl round pin has spacing the lock cylinder cover, the lock cylinder cover can only move from top to bottom.
3. In the scheme, the lock shell further comprises a pair of second knurled pins, and the two second knurled pins are symmetrically arranged on the side part of the lower end of the lock shell in a penetrating mode along the horizontal direction;
the lock cylinder sleeve is fixedly arranged on the inner wall of the lock shell through the second knurled pin;
the periphery of the lower end of the lock cylinder is provided with an annular positioning groove, the second knurled pin penetrates through the lock cylinder sleeve inwards and then extends into the annular positioning groove to form the limiting effect of the second knurled pin, and the lock cylinder only rotates relative to the lock shell.
4. In the above scheme, the lock cylinder is further provided with a first dismounting hole corresponding to the second knurled pin, and the first dismounting hole is located in the annular positioning groove;
a second dismounting hole is formed in the lock rod corresponding to the second knurled pin;
at least under the locking state, the second knurled pin, the first dismounting hole and the second dismounting hole are aligned and matched in the horizontal direction.
5. In the above scheme, the lock further comprises a second spring, and the second spring is arranged in the lock cylinder and acts between the lock cylinder and the lock rod to enable the lock rod to keep a downward displacement trend.
6. In the above solution, the first end of the chute is further provided with a downward concave portion, and the end of the pin body is located in the concave portion in the locked state, so as to keep the locked state stable.
7. In the scheme, the lock shell further comprises a sealing ring, a sawtooth washer and a nut, wherein the sealing ring, the sawtooth washer and the nut are sequentially sleeved on the lock shell from top to bottom;
the nut assembles the tensioning lock on the door plate, the sealing ring ensures the sealing performance of the combination of the tensioning lock and the door plate, and the sawtooth washer ensures the stability of the combination of the tensioning lock and the door plate.
The working principle and the advantages of the invention are as follows:
the invention relates to a tensioning lock with a safety function, which comprises a lock shell, a lock cylinder cover, a lock cylinder sleeve, a lock rod and a lock tongue; the lock core is arranged in the lock shell in a penetrating way and only rotates; the upper end of the lock core is convexly provided with an acting part, and the lock core cover is sleeved on the acting part; the lock cylinder sleeve is sleeved on the lock cylinder and fixedly arranged on the lock shell; the lock rod is arranged in the lock core in a penetrating way, and the lower part of the lock rod is fixedly connected with the lock tongue; the pin body is horizontally arranged in the lock rod in a penetrating way, and the end part of the pin body extends out of the outer side of the lock rod; the lock core is provided with a chute, the end part of the pin body extends into the chute, and when the lock core rotates, the lock rod is driven to move in the vertical direction through the matching of the pin body and the chute; the lock cylinder sleeve is provided with an elongated slot at the periphery, the elongated slot is horizontally arranged, and one end of the elongated slot is upwards connected with a vertical slot.
Compared with the prior art, the invention has the advantages of ingenious design, convenient unlocking and locking operation, smooth operation process, strong tensioning of the tensioning lock during locking and capability of ensuring the reliability and stability of the locking state of the tensioning lock.
More importantly, through the design of lock cylinder lid, locate the lock cylinder on the lock cylinder with lock cylinder lid cover, no matter be in locking state or unblock state, the lock cylinder lid can both keep with the level of lock cylinder up end, it is spacing to rotate the lock cylinder through the rotation of lock cylinder lid self simultaneously, avoided the lock cylinder to take place to rotate because of the maloperation, guaranteed the safety, the reliability of taut lock locking state.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention in a locked state;
FIG. 2 is a top view of an embodiment of the present invention in a locked state;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention in a locked state;
FIG. 4 is a perspective view of an unlocked state of the embodiment of the present invention;
FIG. 5 is a top view of an unlocked state of an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of an unlocked state of an embodiment of the present invention;
FIG. 7 is an exploded view of an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a lock cylinder according to an embodiment of the present invention;
FIG. 9 is a state diagram of an unlocked state of an embodiment of the present invention;
FIG. 10 is a state diagram during locking or unlocking of an embodiment of the present invention;
FIG. 11 is a state diagram of the locked state of the embodiment of the present invention.
In the above drawings: 1. a lock case; 2. a lock cylinder; 3. a lock cylinder cover; 4. a lock cylinder sleeve; 5. a lock lever; 6. a latch bolt; an O-ring; 8. an action part; 9. a through hole; 10. a first spring; 11. a screw; 12. a gasket; 13. a pin body; 14. a chute; 15. a long groove; 16. a vertical slot; 17. a first knurled pin; 18. a yielding groove; 19. a second knurled pin; 20. an annular positioning groove; 21. a first disassembly hole; 22. a second disassembly hole; 23. a second spring; 24. a recess; 25. a seal ring; 26. a serrated washer; 27. a nut; 28. a door panel.
Detailed Description
The invention is further described with reference to the following figures and examples:
example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.
The terms "first," "second," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.
As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.
As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
The terms "upper", "lower", "left", "right", and the like used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the protection schemes and the actual implementation directions.
Referring to the attached drawings 1-11, a tensioning lock with a safety function comprises a lock shell 1, a lock cylinder 2, a lock cylinder cover 3, a lock cylinder sleeve 4, a lock rod 5 and a lock tongue 6.
The lock core 2 is arranged in the lock shell 1 in a penetrating manner in the vertical direction, is in sealing fit with the lock shell 1 through an O-shaped ring 7 and only rotates relative to the lock shell 1 through limiting; the upper end of the lock core 2 is provided with an acting part 8 in an upward protruding way, and the acting part 8 is used for an operator to operate and unlock through a special key.
The lock cylinder cover 3 is sleeved on the action part 8 and is positioned in a through hole 9 at the upper end of the lock shell 1; the action part 8 is also sleeved with a first spring 10, and the first spring 10 acts between the lock cylinder cover 3 and the lock cylinder 2 to keep the lock cylinder cover 3 in an upward displacement trend.
In the locked state and the unlocked state of the tension lock, the upper end surface of the lock case 1, the upper surface of the lock cylinder cover 3 and the upper end surface of the action part 8 of the lock cylinder 2 are all located on the same horizontal plane.
The lock cylinder sleeve 4 is sleeved on the lock cylinder 2 and is fixedly arranged on the inner wall of the lock shell 1.
The lock rod 5 is arranged in the lock cylinder 2 in a penetrating mode in the vertical direction, the lower portion of the lock rod 5 is fixedly connected with the lock bolt 6 through a screw 11 and a gasket 12, and the lock bolt 6 is horizontally arranged.
The lock rod structure further comprises a pin body 13, wherein the pin body 13 is horizontally arranged in the lock rod 5 in a penetrating mode, and the end portion of the pin body 13 extends out of the outer side of the lock rod 5.
A chute 14 is formed in the peripheral part of the lock cylinder 2, and in the assembled state of the lock rod 5 and the lock cylinder 2, the end part of the pin body 13 extends into the chute 14, so that the lock rod 5 is driven to move in the vertical direction through the matching of the pin body 13 and the chute 14 when the lock cylinder 2 rotates; in the unlocked state, the end of the pin 13 is located at the second end of said chute 14; in the locked state, the end of the pin 13 is located at a first end of said chute 14.
The periphery of the lock cylinder sleeve 4 is also provided with a long groove 15, the long groove 15 is horizontally arranged, and one end of the long groove 15 is upwards provided with a vertical groove 16; in the unlocked state, the end of the pin body 13 is located in the elongated slot 15; in the locked state, the end of the pin body 13 is located in said vertical slot 16.
Wherein the chute 14 has a first end located above a second end in a vertical direction; the first end of the chute 14 is located to the right of the second end in the horizontal direction; the vertical groove 16 is connected to the left end of the long groove 15.
The lock shell comprises a lock shell 1 and is characterized by further comprising a pair of first knurled pins 17, wherein the two first knurled pins 17 are symmetrically arranged on the side part of the upper end of the lock shell in a penetrating mode along the horizontal direction; the lock cylinder cover 3 is provided with a yielding groove 18 corresponding to the first knurled pin 17, the first knurled pin 17 extends into the yielding groove 18 to form a first knurled pin 17, the rotation of the lock cylinder cover 3 is limited, and the lock cylinder cover 3 can only move up and down.
The lock shell further comprises a pair of second knurled pins 19, and the two second knurled pins 19 symmetrically penetrate through the side portion of the lower end of the lock shell 1 along the horizontal direction.
The lock cylinder sleeve 4 is fixedly arranged on the inner wall of the lock shell 1 through the second knurled pin 19.
The periphery of the lower end of the lock core 2 is provided with an annular positioning groove 20, the second knurled pin 19 penetrates through the lock core sleeve 4 inwards and then extends into the annular positioning groove 20, the position limitation by the second knurled pin 19 is formed, and the lock core 2 only rotates relative to the lock shell 1.
Preferably, the lock core 2 is further provided with a first dismounting hole 21 corresponding to the second knurled pin 19, and the first dismounting hole 21 is located in the annular positioning groove 20; the lock rod 5 is also provided with a second dismounting hole 22 corresponding to the second knurled pin 19; at least in the locked state, the second knurled pin 19, the first removal hole 21, and the second removal hole 22 are aligned and fitted in the horizontal direction.
By means of the design, when the tensioning lock needs to be disassembled for maintenance or part replacement due to faults and the like, the second knurled pin 19 can be directly pressed into the lock rod 5 through the arrangement of the first disassembly holes 21 and the second disassembly holes 22, so that the tensioning lock is completely immersed into the lock rod 5, and then all parts which are directly or indirectly positioned by the second knurled pin 19 before unlocking, such as the lock shell 1, the lock cylinder 2, the lock cylinder sleeve 4 and the lock rod 5, can be unlocked. Not only makes the maintenance of the tensioning lock become possible, but also avoids the problem of high maintenance cost caused by directly and integrally replacing the lock when the lock fails in the past.
The lock cylinder further comprises a second spring 23, wherein the second spring 23 is arranged in the lock cylinder 2 and acts between the lock cylinder 2 and the lock rod 5 to enable the lock rod 5 to keep a downward displacement trend.
Preferably, a recess 24 is further formed downward in the first end of the chute 14, and the end of the pin body 13 is located in the recess 24 in the locked state, so as to maintain the locked state stably.
The lock shell further comprises a sealing ring 25, a sawtooth washer 26 and a nut 27, wherein the sealing ring, the sawtooth washer 26 and the nut 27 are sequentially sleeved on the lock shell 1 from top to bottom.
The nut 27 is used for assembling the tensioning lock on the door panel 28, the sealing ring 25 is used for ensuring the sealing performance of the combination of the tensioning lock and the door panel 28, and the sawtooth washer 26 is used for ensuring the stability of the combination of the tensioning lock and the door panel 28.
The working principle of the present invention is now explained as follows:
when the lock is closed: firstly, the key presses the lock cylinder cover 3 to expose the action part 8 of the lock cylinder 2;
then, acting the acting part 8 of the lock core 2 by a key, enabling the lock core 2 to rotate clockwise for the first time by 90 degrees, further driving the pin body 13 to horizontally shift to the left end of the long groove 15 of the lock core sleeve 4, simultaneously driving the lock tongue 6 to rotate clockwise by 90 degrees through the lock rod 5 to enter a locking position, and at the moment, the pin body 13 is still positioned at the second end of the chute 14;
finally, operating the lock cylinder 2 to rotate clockwise for the second time by 90 degrees, namely, the lock cylinder 2 rotates clockwise continuously by 180 degrees; at the moment, the pin body 13 is driven to move upwards from the second end of the chute 14 to the first end of the chute 14, and simultaneously moves upwards from the left end of the long groove 15 to the upper end of the vertical groove 16, so that the lock bolt 6 is driven to move upwards through the lock rod 5 to realize tensioning;
when unlocking: firstly, the key presses the lock cylinder cover 3 to expose the action part 8 of the lock cylinder 2;
then, acting the acting part 8 of the lock cylinder 2 by the key, and rotating the lock cylinder 2 counterclockwise for the first time by 90 degrees, so that the pin body 13 is displaced downwards from the first end of the inclined groove 14 to the second end of the inclined groove 14, and is displaced downwards from the upper end of the vertical groove 16 to the left end of the long groove 15, at this time, the lock rod 5 drives the lock tongue 6 to displace downwards to release tension, and the trend of downward displacement is kept under the action of the second spring 23;
and finally, operating the lock cylinder 2 to rotate 90 degrees anticlockwise for the second time, further driving the pin body 13 to horizontally shift to the right end of the long groove 15 of the lock cylinder sleeve 4, and simultaneously driving the lock tongue 6 to rotate 90 degrees anticlockwise through the lock rod 5 to complete unlocking.
Compared with the prior art, the invention has the advantages of ingenious design, convenient unlocking and locking operation, smooth operation process, strong tensioning of the tensioning lock during locking and capability of ensuring the reliability and stability of the locking state of the tensioning lock.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides a take safety function's taut lock which characterized in that:
the lock comprises a lock shell, a lock cylinder cover, a lock cylinder sleeve, a lock rod and a lock tongue;
the lock core penetrates and is arranged in the lock shell in the vertical direction, and the lock core and the lock shell are in sealing fit and only rotate relative to the lock shell through limiting; the upper end of the lock core is provided with an acting part in an upward convex manner, and the lock core cover is sleeved on the acting part and positioned in a through hole at the upper end of the lock shell; the action part is also sleeved with a first spring, and the first spring acts between the lock cylinder cover and the lock cylinder to keep the lock cylinder cover in an upward displacement trend;
the upper end surface of the lock shell, the upper surface of the lock cylinder cover and the upper end surface of the action part of the lock cylinder are all positioned on the same horizontal plane in the locking state and the unlocking state of the tensioning lock;
the lock cylinder sleeve is sleeved on the lock cylinder and fixedly arranged on the inner wall of the lock shell;
the lock rod penetrates in the lock cylinder in the vertical direction, the lower part of the lock rod is fixedly connected with the lock tongue, and the lock tongue is horizontally arranged;
the lock rod is characterized by also comprising a pin body, wherein the pin body is horizontally arranged in the lock rod in a penetrating way, and the end part of the pin body extends out of the outer side of the lock rod;
the lock cylinder is characterized in that the periphery of the lock cylinder is provided with a chute, and the end part of the pin body extends into the chute in the assembly state of the lock rod and the lock cylinder, so that the lock rod is driven to move in the vertical direction through the matching of the pin body and the chute when the lock cylinder rotates; in the unlocking state, the end part of the pin body is positioned at the second end of the chute; in a locking state, the end part of the pin body is positioned at the first end of the chute;
the periphery of the lock cylinder sleeve is also provided with a long groove, the long groove is horizontally arranged, and one end of the long groove is upwards provided with a vertical groove; in the unlocking state, the end part of the pin body is positioned in the long groove; in the locked state, the end of the pin body is located in the vertical slot.
2. The tension lock with security function of claim 1, wherein: the first end of the chute is positioned above the second end in the vertical direction; in the horizontal direction, the first end of the chute is positioned at the right side of the second end;
the vertical groove is connected with the left end of the long groove.
3. The tension lock with security function of claim 1, wherein: the lock shell is characterized by also comprising a pair of first knurling pins, wherein the two first knurling pins are symmetrically arranged on the side part of the upper end of the lock shell in a penetrating manner along the horizontal direction; the lock cylinder cover corresponds first annular knurl round pin is equipped with the groove of stepping down, first annular knurl round pin stretches into in the groove of stepping down, constitute the rotation that first annular knurl round pin has spacing the lock cylinder cover, the lock cylinder cover can only move from top to bottom.
4. The tension lock with security function of claim 1, wherein: the lock shell is characterized by also comprising a pair of second knurling pins, wherein the two second knurling pins are symmetrically arranged on the side part of the lower end of the lock shell in a penetrating manner along the horizontal direction;
the lock cylinder sleeve is fixedly arranged on the inner wall of the lock shell through the second knurled pin;
the periphery of the lower end of the lock cylinder is provided with an annular positioning groove, the second knurled pin penetrates through the lock cylinder sleeve inwards and then extends into the annular positioning groove to form the limiting effect of the second knurled pin, and the lock cylinder only rotates relative to the lock shell.
5. The tension lock with security function of claim 4, wherein: the lock core is also provided with a first dismounting hole corresponding to the second knurling pin, and the first dismounting hole is positioned in the annular positioning groove;
a second dismounting hole is formed in the lock rod corresponding to the second knurled pin;
at least under the locking state, the second knurled pin, the first dismounting hole and the second dismounting hole are aligned and matched in the horizontal direction.
6. The tension lock with security function of claim 1, wherein: the lock also comprises a second spring which is arranged in the lock cylinder and acts between the lock cylinder and the lock rod to ensure that the lock rod keeps the trend of downward displacement.
7. The tension lock with security function of claim 6, wherein: the first end of the chute is also provided with a recess downwards, and the end part of the pin body is positioned in the recess under the locking state so as to keep the locking state stable.
8. The tension lock with security function of claim 1, wherein: the lock shell is characterized by also comprising a sealing ring, a sawtooth washer and a nut which are sequentially sleeved on the lock shell from top to bottom;
the nut assembles the tensioning lock on the door plate, the sealing ring ensures the sealing performance of the combination of the tensioning lock and the door plate, and the sawtooth washer ensures the stability of the combination of the tensioning lock and the door plate.
CN202110176738.3A 2021-02-09 2021-02-09 Tensioning lock with safety function Pending CN112780111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110176738.3A CN112780111A (en) 2021-02-09 2021-02-09 Tensioning lock with safety function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110176738.3A CN112780111A (en) 2021-02-09 2021-02-09 Tensioning lock with safety function

Publications (1)

Publication Number Publication Date
CN112780111A true CN112780111A (en) 2021-05-11

Family

ID=75761356

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110176738.3A Pending CN112780111A (en) 2021-02-09 2021-02-09 Tensioning lock with safety function

Country Status (1)

Country Link
CN (1) CN112780111A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114961442A (en) * 2022-04-27 2022-08-30 江西锐耐博科技有限公司 Stainless steel tensioning lock with anti-vibration structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114961442A (en) * 2022-04-27 2022-08-30 江西锐耐博科技有限公司 Stainless steel tensioning lock with anti-vibration structure
CN114961442B (en) * 2022-04-27 2023-10-13 江西锐耐博科技有限公司 Stainless steel tensioning lock with vibration-resistant structure

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