CN212377043U

CN212377043U - Connection device

Info

Publication number: CN212377043U
Application number: CN201922479175.6U
Authority: CN
Inventors: 邓涛; 刘爱华
Original assignee: Shenzhen Lightlink Display Technology Co Ltd
Current assignee: Shenzhen Lightlink Display Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-01-19
Anticipated expiration: 2029-12-31

Abstract

The application relates to the field of splicing screens, in particular to connecting equipment. Move in the vertical bar hole through promoting the second body of rod, make the first body of rod remove in the tube hole, make the connector stretch into splicing mechanism, promote the second body of rod again and remove in the horizontal bar hole, make the connector rotate, and then make connector and splicing mechanism chucking, the pipe clamp is connected with linking bridge, thereby the realization is being installed the concatenation screen on linking bridge, it adopts the fix with screw to solve the concatenation screen and fix with the support, the dismouting needs the instrument, the problem that the dismouting is inefficient.

Description

Connection device

Technical Field

The application relates to the field of splicing screens, in particular to connecting equipment.

Background

In the prior art, the spliced screen needs to be fixed with the support to enable the spliced screen to be erected, most of the spliced screen and the support are fixed by screws, tools are needed for dismounting, and the purpose of quick dismounting cannot be achieved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, this application provides a jointing equipment, aims at solving the concatenation screen and adopts the fix with screw with the support, and the dismouting needs the instrument, the inefficient problem of dismouting.

The technical scheme provided by the application is as follows:

a connecting device comprises a connecting mechanism and a connecting support, wherein the connecting mechanism comprises a tube body, a first rod body and a second rod body, the tube body is provided with a tube hole, the tube body is provided with a transverse bar hole and a vertical bar hole, one end of the transverse bar hole is communicated with the vertical bar hole, the transverse bar hole and the vertical bar hole are communicated with the tube hole, the first rod body is arranged in the tube hole, one end of the second rod body penetrates through the vertical bar hole and extends into the tube hole to be connected with one end of the first rod body, the other end of the second rod body is exposed out of the tube body, the other end of the first rod body is provided with a connector, the connector is used for being connected with a splicing mechanism, when the second rod body moves in the vertical bar hole, the second rod body pushes the first rod body to move in the tube hole, so that the connector extends out of or retracts into the tube hole at one end of the tube body, when the second rod body moves from the vertical bar hole to the transverse bar hole, the second rod body pushes the first rod body to rotate in the tube hole, so that the connector extending out of the tube hole rotates, the connector is clamped with the splicing mechanism, a circular tube clamp is arranged at the other end of the tube body, and the circular tube clamp is used for being connected with a connecting support;

the linking bridge includes at least one support unit, the support unit includes first round bar, second round bar and at least one bracing piece, the one end of bracing piece is located first round bar, the other end is located the second round bar, first round bar is used for supplying the pipe clamp on the concatenation screen to connect, the lower extreme of first round bar with the lower extreme of second round bar is used for being connected with the base respectively.

Further, the body includes first section body and second section body, first section body has head end and end, the end of first section body is equipped with the internal thread, second section body has head end and end, the end of second section body is equipped with the external screw thread, through the internal thread with external threaded connection, the end of first section body with the head end of second section body is connected.

Furthermore, the outer pipe wall of the second section of pipe body is provided with first anti-skid stripes.

Further, the tube body further comprises a hollow polygonal body, the inner side wall of the polygonal body is connected with the outer tube wall at the tail end of the first section of the tube body, and second anti-skid stripes are arranged on the outer side wall of the polygonal body.

Further, the circular tube clamp comprises a first arc-shaped body, a second arc-shaped body, a rotating rod and a locking nut, wherein the first arc-shaped body is arranged at the tail end of the second section of tube body, the first arc-shaped body is provided with a head end and a tail end, the second arc-shaped body is provided with a head end and a tail end, the tail end of the second arc-shaped body is rotatably arranged at the tail end of the first arc-shaped body, one end of the rotating rod is rotatably arranged at the head end of the first arc-shaped body, the head end of the second arc-shaped body is provided with a first lug and a second lug, a first open slot is formed between the first lug and the second lug, the locking nut is in threaded connection with the other end of the rotating rod, when the second arc-shaped body rotates at the tail end of the first arc-shaped body, so that the second arc-shaped body and the first arc-shaped body form a circular mounting hole, the rotating, and then the second arc-shaped body and the first arc-shaped body clamp the connecting support by being clamped into the first open slot and moving on the rotating rod through the locking nut.

Furthermore, the connecting device further comprises a first connecting piece, a second connecting piece and a first rotating shaft, wherein the first connecting piece comprises a first bottom plate, a first plate and a second plate, the first plate and the second plate are arranged on the first bottom plate at intervals, a second open slot is formed between the first plate and the second plate, the first plate is provided with a first connecting hole, the second plate is provided with a second connecting hole corresponding to the first connecting hole, the bottom plate is arranged at the tail end of the second section pipe body, the second connecting piece comprises a second bottom plate and a third plate, the third plate is arranged on the second bottom plate, the second bottom plate is arranged on the outer side wall of the first arc-shaped body, the third plate is provided with a first rotating hole, the third plate is arranged in the second open slot, the first rotating shaft penetrates through the first rotating hole, one end of the first rotating shaft is arranged in the first connecting hole, the other end of the first rotating shaft is arranged in the second connecting hole.

Further, jointing equipment still includes the head rod, first recess is established to the lateral wall of the first arc body, the second bottom plate be equipped with first recess assorted third lug, the tank bottom wall of first recess is equipped with the through-hole, the third lug is equipped with the third connecting hole, third lug card is gone into first recess, the head rod respectively with the through-hole the third connecting hole is connected.

Further, the circular pipe clamp further comprises an elastic gasket, and the elastic gasket is sleeved on the rotating rod and located between the locking nut and the first bump.

Furthermore, the outer side wall of the polygonal body is provided with an unlocking mark and a locking mark, the position of the unlocking mark corresponds to the vertical bar hole, and the position of the locking mark also corresponds to the transverse bar.

Further, the connector comprises a third rod body, a first clamping block and a second clamping block, the third rod body is arranged on the first rod body, and the first clamping block and the second clamping block are arranged on the circumferential surface of the third rod body relatively.

According to the technical scheme, the method has the advantages that: move in the vertical bar hole through promoting the second body of rod, make the first body of rod remove in the tube hole, make the connector stretch into splicing mechanism, promote the second body of rod again and remove in the horizontal bar hole, make the connector rotate, and then make connector and splicing mechanism chucking, the pipe clamp is connected with linking bridge, thereby the realization is being installed the concatenation screen on linking bridge, it adopts the fix with screw to solve the concatenation screen and fix with the support, the dismouting needs the instrument, the problem that the dismouting is inefficient.

Drawings

FIG. 1 is a schematic structural diagram of a connection mechanism provided by an embodiment of the present application;

FIG. 2 is a schematic view of another direction structure of a connecting mechanism provided by the application of the embodiment of the application;

FIG. 3 is an exploded view of a connection mechanism provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a connecting bracket provided by an embodiment of the application;

FIG. 5 is a schematic structural diagram of a connecting bracket provided by an embodiment of the application;

FIG. 6 is an exploded view of a first round bar provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a support base according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a clamping device provided by an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1 to 3, the present embodiment provides a connection device, which includes a connection mechanism 2 and a connection bracket 3, where the connection mechanism 2 includes a pipe body 21, a first rod 22, and a second rod 23.

The tube body 21 has a tube hole 211, the tube body 21 is provided with a horizontal bar hole 212 and a vertical bar hole 213, one end of the horizontal bar hole 212 is communicated with the vertical bar hole 213, and both the horizontal bar hole 212 and the vertical bar hole 213 are communicated with the tube hole 211.

The first rod 22 is disposed in the tube hole 211, one end of the second rod 23 passes through the vertical bar hole 213 and extends into the tube hole 211 to be connected with one end of the first rod 22, the other end of the second rod 23 is exposed out of the tube body 21, the other end of the first rod 22 is provided with a connector 24, and the connector 24 is used for being connected with the splicing mechanism.

The exposed end of the second rod 23 is used for being grasped and pushed by a user. The splicing mechanism splices more than two LED display screens together.

In this embodiment, the diameter of the first rod 22 is slightly smaller than the diameter of the tube hole 211.

In this embodiment, the first rod 22 includes a first section of rod and a second section of rod, the diameter of the first section of rod is smaller than the diameter of the second section of rod, the second section of rod is disposed at one end of the first section of rod, and the connector 24 is disposed at the other end of the first section of rod.

When the second rod 23 moves in the vertical bar hole 213, the second rod 23 pushes the first rod 22 to move in the tube hole 211, so that the connector 24 extends out of or retracts into the tube hole 211 at one end of the tube body 21, and when the second rod 23 moves from the vertical bar hole 213 to the horizontal bar hole 212, the second rod 23 pushes the first rod 22 to rotate in the tube hole 211, so that the connector 24 extending out of the tube hole 211 rotates, and the connector 24 is clamped with the splicing mechanism.

In this embodiment, the vertical bar hole 213 has two end points, which are a starting point and an end point, respectively, where the vertical bar hole 213 communicates with the horizontal bar hole 212, and the horizontal bar hole 212 has two end points, one end point is the end point of the vertical bar hole 213, and the other end point is a locking point. The second rod 23 is pushed from the starting point to the end point of the vertical bar hole 213, the first rod 22 moves in the tube hole 211, so that the connector 24 extends out of the tube hole 211 and extends into the splicing mechanism, and then the second rod 23 is pushed from the end point of the vertical bar hole 213 to the locking point of the horizontal bar hole 212, so that the first rod 22 rotates in the tube hole 211, the connector 24 rotates, and the connector 24 and the splicing mechanism are clamped.

The other end of the pipe body 21 is provided with a circular pipe clamp 25, and the circular pipe clamp 25 is used for being connected with the connecting support.

For this reason, move in vertical bar hole 213 through promoting the second body of rod 23, make first body of rod 22 move in tube hole 211, make connector 24 stretch into the splicing mechanism, promote the second body of rod 23 again and move in horizontal bar hole 212, make connector 24 rotate, and then make connector 24 and splicing mechanism chucking, pipe clamp 25 and linking bridge connection, thereby the realization is installing the concatenation screen on the linking bridge, it adopts the fix with screw to solve the concatenation screen and support is fixed, the dismouting needs the instrument, the problem of dismouting inefficiency.

In this embodiment, the pipe body 21 includes a first section pipe body 214 and a second section pipe body 215, the first section pipe body 214 has a head end and an end, the end of the first section pipe body 214 is provided with an internal thread, the second section pipe body 215 has a head end and an end, the end of the second section pipe body 215 is provided with an external thread, the end of the first section pipe body 214 is connected with the head end of the second section pipe body 215 through the internal thread and the external thread. And the sectional connection is adopted, so that the overlong of one section of pipe body is avoided, and the processing difficulty is reduced.

In this embodiment, the outer wall of the second tube 215 is provided with first anti-slip stripes 2151. The first anti-slip stripe 2151 is convenient for a user to manually disassemble and assemble.

In this embodiment, the tube body 21 further includes a hollow polygonal body 216, an inner sidewall of the polygonal body 216 is connected to an outer wall of the end of the first section of the tube body 214, and an outer sidewall of the polygonal body 216 is provided with a second anti-slip stripe 2161. Second anti-slip stripe 2161 is convenient for users to manually disassemble and assemble. If the joint of the first section of pipe 214 and the second section of pipe 215 rusts, the polygonal body 216 can be disassembled and assembled by using an assembling and disassembling tool.

In this embodiment, the circular pipe clamp 25 includes a first arc-shaped body 251, a second arc-shaped body 252, a rotating rod 253 and a locking nut 254, the first arc-shaped body 251 is disposed at the end of the second pipe section 215, the first arc-shaped body 251 has a head end and a tail end, the second arc-shaped body 252 has a head end and a tail end, the tail end of the second arc-shaped body 252 is rotatably disposed at the tail end of the first arc-shaped body 251, one end of the rotating rod 253 is rotatably disposed at the head end of the first arc-shaped body 251, the head end of the second arc-shaped body 252 is provided with a first projection 2521 and a second projection 2522, a first opening slot 2523 is formed between the first projection 2521 and the second projection 2522, the locking nut 254 is in threaded connection with the other end of the rotating rod 253, when the second arc-shaped body 252 is rotated at the tail end of the first arc-shaped body 251 to enable the second arc-shaped body 252 to form a circular mounting, and then is snapped into the first open slot 2523 to allow the second arcuate body 252 to clamp the bracket to the first arcuate body 251 by moving the locking nut 254 over the rotating rod 253.

In this embodiment, the connection mechanism 2 further includes a first connection member 26, a second connection member 27 and a first rotation shaft 28, the first connection member 26 includes a first bottom plate 261, a first plate 262 and a second plate 263, the first plate 262 and the second plate 263 are alternately disposed on the first bottom plate 261, a second open slot 264 is formed between the first plate 262 and the second plate 263, the first plate 262 is provided with a first connection hole 2621, the second plate 263 is provided with a second connection hole 2631 corresponding to the first connection hole 2621, the first bottom plate 261 is disposed at the end of the second segment pipe body 215, the second connection member 27 includes a second bottom plate 271 and a third plate 272, the third plate 272 is disposed on the second bottom plate 271, the second bottom plate 271 is disposed on the outer side wall of the first arc-shaped body 251, the third plate 272 is provided with a first rotation hole 2721, the third plate 272 is disposed in the second open slot 264, the first rotation shaft 28 passes through the first rotation hole 2721, one end of the first rotation shaft 28 is disposed in the first connection hole 2621, the other end of the first rotating shaft 28 is disposed in the second connecting hole 2631.

The third plate 272 is rotated in the second opening groove 264 about the first rotating shaft 28 to rotate the circular pipe clamp 25 relative to the pipe body 21, thereby enabling the connecting mechanism 2 to adapt to connections between different distances.

Specifically, the first bottom plate 261 has a first side wall and a second side wall opposite to each other, the end of the second pipe 215 is disposed on the first side wall of the first bottom plate 261, and the first plate 262 and the second plate 263 are disposed on the second side wall of the first bottom plate 261. The second bottom plate 271 has a first side wall and a second side wall opposite to each other, the third plate 272 is disposed on the first side wall of the second bottom plate 271, and the outer side wall of the first arc-shaped body 251 is disposed on the second side wall of the second bottom plate 271.

In the present embodiment, the axial line of the circular mounting hole and the first rotating shaft 28 are balanced with each other.

In this embodiment, the connecting mechanism 2 further includes a first connecting rod 29, a first recess 2511 is disposed on an outer side wall of the first arc-shaped body 251, a third protrusion 2711 matched with the first recess 2511 is disposed on the second bottom plate 271, a through hole 25111 is disposed on a bottom wall of the first recess 2511, the third protrusion 2711 is disposed with a third connecting hole 27111, the third protrusion 2711 is clamped into the first recess 2511, and the first connecting rod 29 is respectively connected with the through hole 25111 and the third connecting hole 27111. The third protrusion 2711 is snapped into the first groove 2511 and positioned such that the third connection hole 27111 is aligned with the through hole 25111, and the first connection rod 29 is connected with the through hole 25111 and the third connection hole 27111.

In this embodiment, the circular tube clamp 25 further includes an elastic washer 255, and the elastic washer 255 is sleeved on the rotating rod 253 and located between the locking nut 254 and the first protrusion 2521.

In this embodiment, the outer side wall of the polygonal body 216 is provided with an unlocking mark 2162 and a locking mark 2163, the position of the unlocking mark 2162 corresponds to the vertical bar hole 213, and the position of the locking mark 2163 corresponds to the horizontal bar. Through the unlocking mark 2162 and the locking mark 2163, the user can quickly know the connection state of the connector 24 and the splicing mechanism.

In this embodiment, the connector 24 includes a third rod 241, a first latch 242 and a second latch 243, the third rod 241 is disposed on the first rod 22, and the first latch 242 and the second latch 243 are disposed on a circumferential surface of the third rod 241. After the first latch 242 and the second latch 243 extend into the splicing mechanism, the rotation of the third rod 241 changes the positions of the first latch 242 and the second latch 243 in the splicing mechanism, and the first latch 242 and the second latch 243 are clamped with the splicing mechanism by dislocation.

As shown in fig. 4, the connecting bracket 3 includes at least one bracket unit 31.

As shown in fig. 5, the holder unit 31 includes a first round bar 311, a second round bar 312, and at least one support bar 313.

First round bar 311 is located to the one end of bracing piece 313, and second round bar 312 is located to the other end, and first round bar 311 is used for supplying to splice the pipe clamp on the screen and connects, and the lower extreme of first round bar 311 and the lower extreme of second round bar 312 are used for being connected with the base respectively.

Because linking bridge 3 includes first round bar 311, installs the pipe clamp on the concatenation screen, and the pipe clamp is connected with first round bar 311 to the realization is installing the concatenation screen on linking bridge 3, solves the concatenation screen and adopts the fix with screw with the support is fixed, and the dismouting needs the instrument, the inefficient problem of dismouting.

In the present embodiment, the first round bar 311 and the second round bar 312 have the same structure.

As shown in fig. 6, in this embodiment, the first round bar 311 includes a first section round bar 3111, a second section round bar 3112 and a support seat 3113, one end of the first section round bar 3111 is provided with a first protrusion 31111, the other end is provided with a third groove, the second section round bar 3112 is provided with a second protrusion 31121, the other end is provided with a second groove, the support seat 3113 includes a third bottom plate 31131 and a third protrusion 31132, the third protrusion 31132 is provided on the third bottom plate 31131, the third protrusion 31132 is connected with the third groove, and the first protrusion 31111 is connected with the second groove. This enables the first round bar 311 to be adapted to different length requirements, and enables the first round bar 311 to be assembled quickly.

The length of the first round bar 311 is composed of multiple segments of round bars, and the user can use the first round bar 311 with corresponding length according to the height of the spliced screen, so that the corresponding number of segments of round bars are used.

As shown in fig. 7, in the present embodiment, the third base plate 31131 is provided with a fourth connection hole 3114, the fourth connection hole 3114 is provided with a second connection bar 3115, and the second connection bar 3115 is used for connecting with the base.

Specifically, the number of the fourth connection holes 3114 is four. The second connecting rod 3115 may be a screw.

In this embodiment, the first round bar 311 further includes a first connecting pin 3116 and a second connecting pin 3117, the first protruding head 31111 is provided with a first through hole 311a, the first segment round bar 3111 is provided with a second through hole 312a penetrating the third groove, the second segment round bar 3112 is provided with a third through hole 313a penetrating the second groove, the third protruding head 31132 is provided with a fourth through hole 314a, the first connecting pin 3116 is inserted into the second through hole 312a and the fourth through hole 314a, and the second connecting pin 3117 is inserted into the third through hole 313a and the first through hole 311 a. The stability of the connection of the first round bar 311 itself is increased.

In the present embodiment, the connecting bracket 3 includes connecting means 32, and the connecting means 32 are connected to two bracket units 31 spaced by one bracket unit 31, respectively. For example, the number of the rack units 31 is three, i.e., a first rack unit, a second rack unit, and a third rack unit, and two rack units 31 spaced apart by one rack unit 31 are the first rack unit and the third rack unit. This increases the stability of the connecting bracket 3.

As shown in fig. 4 and 8, in the present embodiment, the connecting device 32 includes a third rod 321 and two clamping devices 322, the two clamping devices 322 are respectively disposed at two ends of the third rod 321, each clamping device 322 includes a first circular pipe clamp 3221 and a second circular pipe clamp 3222 disposed on the first circular pipe clamp 3221, the first circular pipe clamp 3221 is clamped on the second rod 312, and the second circular pipe clamp 3222 is clamped on the third rod 321. The first round pipe clamp 3221 is used to tightly clamp the second round rod 312, and the second round pipe clamp 3222 is used to tightly clamp the third round rod 321, so that the first round pipe clamp 3221 can be quickly disassembled and assembled.

In this embodiment, the first circular tube clamp 3221 includes a third arc-shaped body 323, a fourth arc-shaped body 324, a first rotating rod 325 and a first locking nut 326, the third arc-shaped body 323 has a head end and a tail end, the fourth arc-shaped body 324 has a head end and a tail end, the tail end of the fourth arc-shaped body 324 is rotatably disposed at the tail end of the third arc-shaped body 323, one end of the first rotating rod 325 is rotatably disposed at the head end of the third arc-shaped body 323, the head end of the fourth arc-shaped body 324 is disposed with a fourth protrusion 3241 and a fifth protrusion 3242, a third opening slot 3243 is formed between the fourth protrusion 3241 and the fifth protrusion 3242, the first locking nut 326 is in threaded connection with the other end of the first rotating rod 325, when the fourth arc-shaped body 324 rotates at the tail end of the third arc-shaped body 323 to enable the fourth arc-shaped body 324 and the third arc-shaped body 323 to form a circular mounting hole, the first rotating rod 325 rotates at the head end of the third arc-, the fourth arc-shaped body 324 and the third arc-shaped body 323 clamp the second round bar 312 by moving the first lock nut 326 on the first rotating rod 325.

In this embodiment, the first clip 3221 and the second clip 3222 are identical in construction.

In the present embodiment, the third round bar 321 and the second round bar 312 are arranged perpendicular to each other.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connecting device is characterized by comprising a connecting mechanism and a connecting support, wherein the connecting mechanism comprises a pipe body, a first pipe body and a second pipe body, the pipe body is provided with a pipe hole, the pipe body is provided with a transverse bar hole and a vertical bar hole, one end of the transverse bar hole is communicated with the vertical bar hole, the transverse bar hole and the vertical bar hole are communicated with the pipe hole, the first pipe body is arranged in the pipe hole, one end of the second pipe body penetrates through the vertical bar hole to extend into the pipe hole to be connected with one end of the first pipe body, the other end of the second pipe body is exposed out of the pipe body, the other end of the first pipe body is provided with a connector, the connector is used for being connected with a splicing mechanism, when the second pipe body moves in the vertical bar hole, the second pipe body pushes the first pipe body to move in the pipe hole, so that the connector extends out of or retracts into the pipe hole at one end of the pipe body, when the second rod body moves from the vertical bar hole to the transverse bar hole, the second rod body pushes the first rod body to rotate in the tube hole, so that the connector extending out of the tube hole rotates, the connector is clamped with the splicing mechanism, a circular tube clamp is arranged at the other end of the tube body, and the circular tube clamp is used for being connected with a connecting support;

2. The connection apparatus according to claim 1, wherein the pipe body comprises a first section pipe body having a head end and a tail end, the tail end of the first section pipe body is provided with an internal thread, the second section pipe body has a head end and a tail end, the tail end of the second section pipe body is provided with an external thread, the external thread is connected through the internal thread, and the tail end of the first section pipe body is connected with the head end of the second section pipe body.

3. The connecting apparatus according to claim 2, wherein the outer tubular wall of the second tubular section is provided with first non-slip striations.

4. The connecting apparatus according to claim 2, wherein the tubular body further comprises a hollow polygonal body, an inner side wall of the polygonal body is connected with an outer tubular wall of the end of the first section of tubular body, and an outer side wall of the polygonal body is provided with second anti-slip stripes.

5. The connecting device according to claim 2, wherein the circular tube clamp comprises a first arc-shaped body, a second arc-shaped body, a rotating rod and a locking nut, the first arc-shaped body is arranged at the tail end of the second section of tube body, the first arc-shaped body is provided with a head end and a tail end, the second arc-shaped body is provided with a head end and a tail end, the tail end of the second arc-shaped body is rotatably arranged at the tail end of the first arc-shaped body, one end of the rotating rod is rotatably arranged at the head end of the first arc-shaped body, the head end of the second arc-shaped body is provided with a first bump and a second bump, a first open slot is formed between the first bump and the second bump, the locking nut is in threaded connection with the other end of the rotating rod, when the second arc-shaped body rotates at the tail end of the first arc-shaped body, the second arc-shaped body and the first arc-shaped body form a, the dwang is in the head end of first arc body rotates, later the card is gone into first open slot, through lock nut is in move on the dwang, make the second arc body with first arc body presss from both sides tightly linking bridge.

6. The connecting apparatus according to claim 5, further comprising a first connecting member, a second connecting member and a first rotating shaft, wherein the first connecting member comprises a first bottom plate, a first plate and a second plate, the first plate and the second plate are alternately disposed on the first bottom plate, a second open slot is formed between the first plate and the second plate, the first plate is provided with a first connecting hole, the second plate is provided with a second connecting hole corresponding to the first connecting hole, the bottom plate is disposed at the end of the second segment of the pipe body, the second connecting member comprises a second bottom plate and a third plate, the third plate is disposed on the second bottom plate, the second bottom plate is disposed at an outer side wall of the first plate, the third plate is provided with a first rotating hole, the third plate is disposed in the second open slot, and the first rotating shaft passes through the first rotating hole, one end of the first rotating shaft is arranged in the first connecting hole, and the other end of the first rotating shaft is arranged in the second connecting hole.

7. The connecting device according to claim 6, further comprising a first connecting rod, wherein a first groove is formed on an outer side wall of the first arc-shaped body, a third protruding block matched with the first groove is arranged on the second bottom plate, a through hole is formed in a bottom wall of the first groove, a third connecting hole is formed in the third protruding block, the third protruding block is clamped into the first groove, and the first connecting rod is respectively connected with the through hole and the third connecting hole.

8. The connecting device according to claim 5, wherein the circular tube clamp further comprises an elastic gasket, and the elastic gasket is sleeved on the rotating rod and located between the locking nut and the first bump.

9. The connecting device according to claim 4, wherein the outer side wall of the polygonal body is provided with an unlocking mark and a locking mark, the unlocking mark is positioned corresponding to the vertical bar hole, and the locking mark is positioned corresponding to the horizontal bar.

10. The connection apparatus according to claim 1, wherein the connection head includes a third rod, a first block and a second block, the third rod is disposed on the first rod, and the first block and the second block are disposed on a circumferential surface of the third rod.