CN110725836A

CN110725836A - Connecting lock

Info

Publication number: CN110725836A
Application number: CN201911087277.1A
Authority: CN
Inventors: 彭彬; 傅高武; 彭岳棋
Original assignee: HUNAN MINGHE OPTO TECH Co Ltd
Current assignee: HUNAN MINGHE OPTO TECH Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-01-24

Abstract

The invention discloses a connecting lock which comprises a first fixing device, a second fixing device, a clamping frame, a rotating frame and a locking device, wherein one end of the rotating frame is rotatably connected to the first fixing device, the locking device is arranged on the rotating frame, one end of the clamping frame is rotatably connected to the middle of the rotating frame, the other end of the clamping frame is a clamping part, and the clamping part is movably clamped on the second fixing device. The rotating shafts are arranged on the first fixing device and in the middle of the rotating frame respectively, one end of the rotating frame is connected to the first fixing device in a rotating mode through the rotating shafts, and one end of the buckle frame is connected to the middle of the rotating frame in a rotating mode through the rotating shafts. Simple structure, easy dismounting, firm in connection, convenient to use. The invention is applied to the technical field of locks.

Description

Connecting lock

Technical Field

The invention belongs to the technical field of locks, and particularly relates to a connecting lock.

Background

The connecting lock is a lock commonly used in the connecting process of the LED lamp box, and the connecting lock on the LED lamp box in the prior art has the defects of inconvenient disassembly and assembly, inconvenient use and the like.

The patent document with publication number CN207246170U discloses an assembling connecting lock and an LED display screen, wherein the assembling connecting lock comprises a first connecting piece and a second connecting piece for connecting two adjacent box bodies, and a fastener for tensioning the first connecting piece and the second connecting piece; the lower part of the first connecting piece is provided with a first fixing part fixed with the external box body; the second connector includes: the lock sleeve is in fit connection with the first connecting piece and is provided with an arc-shaped track, and the arc-shaped track extends in an arc shape back to the first connecting piece; the lock seat is connected with the lock sleeve and can slide back and forth along the arc-shaped track; the lower part of the lock seat is also provided with a second fixing part fixed with the external box body; the limiting piece is connected with the lock sleeve and the lock base and is used for fixing the lock sleeve and the lock base when the lock base moves in place; the fastener is connected with the first connecting piece and the lock sleeve and used for fixing the first connecting piece and the lock sleeve.

The assembly connecting lock in the comparison file is complex in structure and not firm in connection.

Disclosure of Invention

The invention mainly aims to provide a connecting lock which is simple in structure, convenient to disassemble and assemble, firm in connection and convenient to use.

In order to achieve the purpose, the invention provides a connecting lock which comprises a first fixing device, a second fixing device, a clamping frame, a rotating frame and a locking device, wherein one end of the rotating frame is rotatably connected to the first fixing device, the locking device is arranged on the rotating frame, one end of the clamping frame is rotatably connected to the middle of the rotating frame, the other end of the clamping frame is a clamping part, and the clamping part is movably clamped on the second fixing device. The rotating shafts are arranged on the first fixing device and in the middle of the rotating frame respectively, one end of the rotating frame is connected to the first fixing device in a rotating mode through the rotating shafts, and one end of the buckle frame is connected to the middle of the rotating frame in a rotating mode through the rotating shafts.

When the connecting seat is connected with the two box body units of the LED box body, the first fixing device is fixed on one box body unit, and the second fixing device is fixed on the other box body unit. Then the rotating frame is rotated to enable the buckle frame to be buckled on the second fixing device, and then the buckle frame is locked through the locking device on the rotating frame, so that the connection of the two box body units can be completed. Because the first fixing device and the second fixing device are respectively fixed on the two unit box bodies, when the buckle frame is buckled on the second fixing frame, the connection of the two box body units is firmer.

The invention has simple structure, convenient disassembly and assembly, firm connection and convenient use.

In a further improvement, the first fixing device comprises a first connecting rod and at least two first fixing seats, and the first fixing seats are sequentially connected through the first connecting rod; preferably, the number of the first fixing seats is two, and in the fixing device, the number of the first fixing seats is two, so that the stability, balance and firmness of the first fixing device can be improved through the first connecting rod and the two first fixing seats.

The second fixing device comprises an adjusting device and at least two second fixing seats, and the second fixing seats are connected in sequence through the adjusting device; preferably, the number of the second fixing seats is two, and in the invention, the number of the second fixing seats is two, so that the stability, balance and firmness of the second fixing device can be improved through the adjusting device and the two second fixing seats.

The rotating frame comprises a second connecting rod and at least two rotating rods, one end of each rotating rod is respectively and rotatably connected to each first fixing seat, the other end of each rotating rod is sequentially connected through the second connecting rod, and at least one rotating rod is provided with a locking device; preferably, the number of the rotating rods is two, and in the invention, the number of the rotating rods is two, so that the stability, balance and firmness of the rotating frame can be improved through the second connecting rod and the two rotating rods.

The buckle frame comprises a third connecting rod and at least two buckle rods, one ends of the buckle rods are respectively rotatably connected to the middle of the rotating rod, the other ends of the buckle rods are bent towards the same direction to form buckle parts, and the buckle rods are sequentially connected through the third connecting rod. Preferably, the number of the buckling rods is two, and in the invention, the number of the buckling rods is two, so that the stability, balance and firmness of the buckling frame can be improved through the third connecting rod and the two buckling rods.

Further improved, locking device includes catch bar and first elastic element, the catch bar slides along dwang axial frame and sets up, be equipped with first couple and handle on the catch bar, first elastic element supports to establish between one end and the dwang that the catch bar is close to first rotation seat. The first elastic element is a spring, a loop bar is arranged at the end part of the push rod close to one end of the first rotating seat, and the first elastic element is sleeved on the loop bar. And a second hook corresponding to the first hook is arranged on the box body unit where the first fixing device is arranged. When the push rod is pushed by the handle, the first hook leans against the second hook and then is loosened, the first hook is hung on the second hook under the action of the elastic force of the first elastic element, and the first hook cannot easily fall off from the second hook due to the fact that the elastic force of the first elastic element is tensioned.

In a further improvement, the first fixing seats are provided with first fixing parts, each first fixing part is detachably connected with each first fixing seat, a first fixing through hole is formed between each first fixing part and each first fixing seat, and the first fixing through holes are opposite;

the second fixing seats are provided with second fixing parts, each second fixing part is detachably connected with each second fixing seat, second fixing through holes are formed between each second fixing part and each second fixing seat respectively, and the second fixing through holes are opposite to each other. The box body unit is provided with a fixed shaft, the first fixed seats are fixed on the fixed shaft of the box body unit through the first fixed through holes, and the second fixed seats are fixed on the fixed shaft of the other box body unit through the second fixed through holes.

In a further improvement, a second elastic element is arranged in the second fixing through hole, one end of the second elastic element is connected to the second fixing seat, and the other end of the second elastic element extends towards the second fixing portion. The second elastic element is a spring, and when the fixing shaft is inserted into the second fixing through hole, the second elastic element, namely the spring, can be abutted against the fixing shaft, and can apply certain pressure to the fixing shaft to prevent deviation.

In a further improvement, the adjusting device comprises an adjusting piece and two adjusting rods, the second fixing portion is provided with third through holes, the third through holes are opposite, the two adjusting rods are respectively inserted between the third through holes, the two adjusting rods are butted through the adjusting piece, and the two adjusting rods are not in direct contact but are butted through the adjusting rods. The butt joint end of the two adjusting rods is provided with external threads respectively, the two sides of the adjusting piece are provided with internal threads respectively, and the two adjusting rods are connected with the adjusting piece through the external threads and the internal threads respectively. The distance between two adjusting rods can be controlled by screwing the adjusting piece, so that the gap between the box body units can be adjusted, the gap adjusting box body unit does not refer to the two box body units connected by the connecting lock but refers to other box body units adjacent to the box body unit, and the common LED box body is formed by splicing and assembling a plurality of box body units.

The improved structure is characterized in that the ends, not provided with external threads, of the two adjusting rods are respectively and fixedly sleeved with a retaining ring, the diameter of each retaining ring is larger than that of the corresponding third through hole, the two adjusting rods are respectively sleeved with a third elastic element, and the two third elastic elements are respectively positioned between the corresponding retaining rings and the corresponding third through holes. The retaining ring is used for preventing the two adjusting rods from sliding out of the second fixing part. The third elastic element is a spring, and the spring generates elastic force between the baffle ring and the second fixing part, so that the adjusting rod and the second fixing part can be tensioned, and the whole LED box body is prevented from shaking. Preferably, the third elastic element is further sleeved with a sleeve for protecting the third elastic element and the internal structure thereof, and the whole appearance is more attractive.

In a further improvement, the third through hole is square, a wedge corresponding to the third through hole can be detachably sleeved at one end of the adjusting rod without the external thread, and the smaller end of the wedge is movably inserted in the third through hole. Go into square third through-hole through the wedge card, make and adjust and can not take place relative rotation between pole and the second fixed part, can also realize the pretension fixed to adjusting lever and second fixed part, make whole second fixing base and even whole connecting seat and LED box can not take place to rock.

In a further improvement, a stop lever is arranged at the end part of one bent end of the buckle rod, the stop lever is perpendicular to the buckle rod, and the stop lever is a buckle part; the second fixing part is provided with a clamping groove corresponding to the stop lever, and the clamping rod is movably clamped on the clamping groove of the second fixing part through the stop lever. Preferably, the stop lever is cylindrical, and the clamping groove is semi-cylindrical. When the stop lever is clamped in the clamping groove, the connecting lock locks the two box body units; when the clamping frame is lifted up through the rotating frame, the stop lever also withdraws from the clamping groove, so that the two locked box body units can be disassembled, and the disassembly and the assembly are convenient.

Further improved, be equipped with anti-skidding line along regulating part circumference, still be equipped with the regulation hole on the regulating part, the direction in regulation hole sets up along the axial of regulating part. The anti-skidding line is the bar, and the regulating part is cylindrical, and the anti-skidding line sets up along the regulating part axial. Through the anti-skidding line, it is more convenient to twist the regulating part, can adopt instruments such as bottle opener to insert in the regulation hole when necessary, can screw up the regulating part.

Compared with the prior art, the technical scheme of the invention has the beneficial effects that:

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a perspective view of the connecting lock (the internal structure of the second fixing seat can be seen);

FIG. 2 is a perspective view of FIG. 1 from another perspective;

FIG. 3 is another perspective view of the attachment lock (with the internal structure of the locking mechanism visible);

FIG. 4 is a front view of the attachment lock;

fig. 5 is a schematic view of a connection relationship between the second fixing seat and the second fixing portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two or more, for example, three or the like, unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 5, a connecting lock comprises a first fixing device 5, a second fixing device 6, a buckle frame 7, a rotating frame 8 and a locking device 9, wherein one end of the rotating frame 8 is rotatably connected to the first fixing device 5, the locking device 9 is arranged on the rotating frame 8, one end of the buckle frame 7 is rotatably connected to the middle of the rotating frame 8, the other end of the buckle frame 7 is a buckling part, and the buckling part is movably buckled on the second fixing device 6. The rotating shafts 81 are respectively arranged on the first fixing device 5 and in the middle of the rotating frame 8, one end of the rotating frame 8 is rotatably connected to the first fixing device 5 through the rotating shafts 81, and one end of the buckle frame 7 is rotatably connected to the middle of the rotating frame 8 through the rotating shafts 81.

When the connecting seat of the embodiment is used for connecting two box body units of an LED box body, the first fixing device 5 is fixed on one box body unit, and the second fixing device 6 is fixed on the other box body unit. Then the rotating frame 8 is rotated to enable the buckling frame 7 to be buckled on the second fixing device 6, and then the locking device 9 on the rotating frame 8 is used for locking, so that the two box body units can be connected and locked. Because the first fixing device 5 and the second fixing device 6 are respectively fixed on the two unit box bodies, when the buckle frame 7 is buckled on the second fixing frame, the connection of the two box body units is firmer.

This embodiment simple structure, easy dismounting, firm in connection, convenient to use.

In this embodiment, as a further improvement of the above technical solution, the first fixing device 5 includes a first connecting rod 51 and at least two first fixing seats 52, and the first fixing seats 52 are connected in sequence by the first connecting rod 51; preferably, the number of the first fixing seats 52 is two, in this embodiment, the number of the first fixing seats 52 is two, and the stability, balance and firmness of the first fixing device 5 can be improved by the first connecting rod 51 and the two first fixing seats 52.

The second fixing device 6 comprises an adjusting device 61 and at least two second fixing seats 62, and the second fixing seats 62 are connected in sequence through the adjusting device 61; preferably, the number of the second fixing seats 62 is two, in this embodiment, the number of the second fixing seats 62 is two, and the stability, balance and firmness of the second fixing device 6 can be improved by the adjusting device 61 and the two second fixing seats 62.

The rotating frame 8 comprises a second connecting rod 81 and at least two rotating rods 82, one end of each rotating rod 82 is respectively and rotatably connected to each first fixed seat 52, the other end of each rotating rod 82 is sequentially connected through the second connecting rod 81, and a locking device 9 is arranged on at least one rotating rod 82; preferably, the number of the rotating rods 82 is two, and in this embodiment, the number of the rotating rods 82 is two, so that the stability, balance and firmness of the rotating frame 8 can be improved by the second connecting rod 81 and the two rotating rods 82.

The buckling frame 7 comprises a third connecting rod 71 and at least two buckling rods 72, one ends of the buckling rods 72 are respectively and rotatably connected to the middle of the rotating rod 82, the other ends of the buckling rods 72 are bent towards the same direction to form buckling parts, and the buckling rods 72 are sequentially connected through the third connecting rod 71. Preferably, the number of the buckling rods 72 is two, in this embodiment, the number of the buckling rods 72 is two, and the stability, balance and firmness of the buckling frame 7 can be improved by the third connecting rod 71 and the two buckling rods 72.

In this embodiment, as a further improvement of the above technical solution, the locking device 9 includes a push rod 91 and a first elastic element 92, the push rod 91 is disposed to slide along the axial direction of the rotating rod 82, the push rod 91 is provided with a first hook 93 and a handle 94, and the first elastic element 92 is abutted between one end of the push rod 91 close to the first rotating seat and the rotating rod 82. The first elastic element 92 is a spring, a sleeve rod 95 is disposed at an end of the pushing rod 91 close to the first rotating base, and the sleeve rod 95 is sleeved with the first elastic element 92. The box unit where the first fixing device 5 is located is provided with a second hook 41 corresponding to the first hook 93. When the push lever 91 is pushed by the handle 94, the first hook 93 is abutted against the second hook 41 and then released, the first hook 93 is hooked on the second hook 41 by the elastic force of the first elastic member 92, and the first hook 93 is not easily detached from the second hook 41 due to the elastic force of the first elastic member 92 being tightened.

In this embodiment, as a further improvement of the above technical solution, the first fixing seats 52 are provided with first fixing portions 53, each first fixing portion 53 is detachably connected to each first fixing seat 52, a first fixing through hole 54 is formed between each first fixing portion 53 and each first fixing seat 52, and each first fixing through hole 54 is opposite to each other;

the second fixing seats 62 are provided with second fixing parts 63, each second fixing part 63 is detachably connected with each second fixing seat 62, second fixing through holes 64 are formed between each second fixing part 63 and each second fixing seat 62, and the second fixing through holes 64 are opposite. The box body unit is provided with a fixed shaft 42, the first fixed seat 52 is fixed on the fixed shaft 42 of the box body unit through the first fixed through holes 54, and the second fixed seat 62 is fixed on the fixed shaft 42 of the other box body unit through the second fixed through hole 64.

In this embodiment, as a further improvement of the above technical solution, a second elastic element 65 is disposed in the second fixing through hole 64, one end of the second elastic element 65 is connected to the second fixing seat 62, and the other end of the second elastic element 65 extends toward the second fixing portion 63. The second elastic member 65 is a spring, and when the fixing shaft 42 is inserted into the second fixing through hole 64, the second elastic member 65, i.e., the spring, can be abutted against the fixing shaft 42, and can apply a certain pressure to the fixing shaft 42 to prevent the deviation.

In this embodiment, as a further improvement of the above technical solution, the adjusting device 61 includes an adjusting member 611 and two adjusting rods 612, the second fixing portion 63 is provided with third through holes 66, the third through holes 66 are opposite, the two adjusting rods 612 are respectively inserted between the third through holes 66, and the two adjusting rods 612 are butted through the adjusting member 611, where the two adjusting rods 612 are butted not directly but through the adjusting rods 612. The abutting ends of the two adjusting rods 612 are respectively provided with an external thread, the two sides of the adjusting piece 611 are respectively provided with an internal thread, and the two adjusting rods 612 are respectively connected with the adjusting piece 611 through the external thread and the internal thread. The distance between the two adjusting rods 612 can be controlled by screwing the adjusting piece 611, so that the gap between the box units can be adjusted, the box unit for adjusting the gap here does not refer to the two box units connected by the connecting lock, but refers to other box units adjacent to the box unit, and a general LED box is assembled by splicing a plurality of box units.

In this embodiment, as a further improvement of the above technical solution, the ends of the two adjusting rods 612, which are not provided with external threads, are respectively and fixedly sleeved with a retaining ring 613, the diameter of the retaining ring 613 is larger than the diameter of the third through hole 66, the two adjusting rods 612 are also respectively sleeved with a third elastic element 614, and the two third elastic elements 614 are respectively located between the corresponding retaining ring 613 and the corresponding third through hole 66. The retaining ring 613 is to prevent the two adjustment rods 612 from slipping out of the second fixing portion 63. The third elastic element 614 is a spring, which generates an elastic force between the baffle ring 613 and the second fixing portion 63, and can tighten the adjusting lever 612 and the second fixing portion 63, thereby preventing the entire LED housing from shaking. Preferably, the third elastic element 614 is further sleeved with a sleeve 615 for protecting the third elastic element 614 and the internal structure thereof and making the overall appearance more beautiful.

In this embodiment, as a further improvement of the above technical solution, the third through hole 66 is square, the end of the adjusting rod 612 not provided with the external thread can also be detachably sleeved with a wedge 67 corresponding to the third through hole 66, and the smaller end of the wedge 67 is movably inserted into the third through hole 66. The wedge 67 is clamped into the square third through hole 66, so that the adjusting rod 612 and the second fixing part 63 cannot rotate relatively, the adjusting rod 612 and the second fixing part 63 can be pre-tightened and fixed, and the whole second fixing seat 62, even the whole connecting seat and the LED box body cannot shake.

In this embodiment, as a further improvement of the above technical solution, a stop rod 73 is disposed at an end of the bent end of the buckling rod 72, the stop rod 73 is perpendicular to the buckling rod 72, and the stop rod 73 is a buckling portion; the second fixing portion 63 is provided with a locking groove 631 corresponding to the blocking rod 73, and the locking rod 72 is movably locked to the locking groove 631 of the second fixing portion 63 through the blocking rod 73. Preferably, the stop lever 73 is cylindrical and the catch 631 is semi-cylindrical. When the stop lever 73 is clamped in the clamping groove 631, the connecting lock locks the two box units; when the clamping frame 7 is lifted up through the rotating frame 8, the stop lever 73 is also withdrawn from the clamping groove 631, so that the two locked box body units can be disassembled, and the disassembly and the assembly are convenient.

In this embodiment, as a further improvement of the above technical solution, the anti-slip pattern 616 is disposed along the circumferential direction of the adjusting member 611, the adjusting member 611 is further provided with an adjusting hole 617, and the direction of the adjusting hole 617 is disposed along the axial direction of the adjusting member 611. The anti-slip pattern 616 is bar-shaped, the adjusting member 611 is cylindrical, and the anti-slip pattern 616 is axially disposed along the adjusting member 611. The anti-slip threads 616 facilitate screwing the adjusting member 611, and a tool such as a screwdriver can be inserted into the adjusting hole 617 to tighten the adjusting member 611 if necessary.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The connecting lock is characterized by comprising a first fixing device, a second fixing device, a clamping frame, a rotating frame and a locking device, wherein one end of the rotating frame is rotatably connected to the first fixing device, the locking device is arranged on the rotating frame, one end of the clamping frame is rotatably connected to the middle of the rotating frame, the other end of the clamping frame is a clamping portion, and the clamping portion is movably clamped on the second fixing device.

2. The connecting lock as claimed in claim 1, wherein the first fixing means comprises a first connecting rod and at least two first fixing seats, each first fixing seat being connected in turn by the first connecting rod;

the second fixing device comprises an adjusting device and at least two second fixing seats, and the second fixing seats are connected in sequence through the adjusting device;

the rotating frame comprises a second connecting rod and at least two rotating rods, one end of each rotating rod is respectively and rotatably connected to each first fixing seat, the other end of each rotating rod is sequentially connected through the second connecting rod, and at least one rotating rod is provided with a locking device;

the buckle frame comprises a third connecting rod and at least two buckle rods, one ends of the buckle rods are respectively rotatably connected to the middle of the rotating rod, the other ends of the buckle rods are bent towards the same direction to form buckle parts, and the buckle rods are sequentially connected through the third connecting rod.

3. A connecting lock as claimed in claim 2, characterized in that said locking means comprise a push rod slidably arranged along the axial frame of the swivelling levers, on which a first hook and a handle are provided, and a first elastic element which abuts between the end of the push rod close to the first swivelling seat and the swivelling levers.

4. The connecting lock of claim 2, wherein the first fixing seats are provided with first fixing portions, each first fixing portion is detachably connected with each first fixing seat, and a first fixing through hole is formed between each first fixing portion and each first fixing seat, and each first fixing through hole is opposite to each other;

the second fixing seats are provided with second fixing parts, each second fixing part is detachably connected with each second fixing seat, second fixing through holes are formed between each second fixing part and each second fixing seat respectively, and the second fixing through holes are opposite to each other.

5. The connecting lock of claim 4, wherein a second elastic element is disposed in the second fixing through hole, one end of the second elastic element is connected to the second fixing seat, and the other end of the second elastic element extends toward the second fixing portion.

6. The connecting lock as claimed in claim 4, wherein the adjusting means comprises an adjusting member and two adjusting rods, the second fixing portion is provided with third through holes, the third through holes are opposite, the two adjusting rods are respectively inserted between the third through holes, and are butted by the adjusting rods, the butted ends of the two adjusting rods are respectively provided with external threads, both sides of the adjusting member are respectively provided with internal threads, and the two adjusting rods are respectively connected with the adjusting member by the external threads and the internal threads.

7. The connecting lock as claimed in claim 6, wherein the ends of the two adjusting rods not provided with the external threads are respectively and fixedly sleeved with a retaining ring, the diameter of the retaining ring is larger than that of the third through hole, the two adjusting rods are respectively sleeved with a third elastic element, and the two third elastic elements are respectively located between the corresponding retaining ring and the corresponding third through hole.

8. The connecting lock as claimed in claim 6, wherein the third through hole is square, a wedge corresponding to the third through hole is detachably fitted at the end of the adjusting lever not provided with the external thread, and the smaller end of the wedge is movably inserted in the third through hole.

9. The connecting lock as claimed in claim 6, wherein the end of the curved end of the snap lever is provided with a stop lever perpendicular to the snap lever, the stop lever being a snap portion; the second fixing part is provided with a clamping groove corresponding to the stop lever, and the clamping rod is movably clamped on the clamping groove of the second fixing part through the stop lever.

10. The connecting lock as claimed in claim 6, wherein the adjusting member is provided with anti-slip threads along the circumferential direction thereof, and the adjusting member is further provided with an adjusting hole, and the direction of the adjusting hole is along the axial direction of the adjusting member.