Profile end piece connecting structure applied to conveying system

Abstract

The invention relates to the technical field of sectional material connection, in particular to a sectional material end piece connecting structure applied to a conveying system, which comprises a conveying system, an assembling groove is formed in the inner side of the conveying system, a supporting sectional material is arranged in the middle of the conveying system, and sectional material fixing pieces are symmetrically arranged at the two ends of the supporting sectional material; a connecting end piece is arranged on the outer side of the profile fixing piece; the connecting structure has the beneficial effects that the connecting end piece, the auxiliary fixing piece and the sectional material fixing piece are arranged to be matched and connected with the conveying system and the supporting sectional material, and a self-locking structure between the connecting end piece and the auxiliary fixing piece is designed, so that the self-locking positioning column penetrates through the assembling positioning block and is clamped into the self-locking positioning hole in the inner side of the sectional material fixing piece to complete self-locking in the assembling process; the supporting profile and the transportation system are connected and fixed at a time, the structure is simple, installation is convenient, meanwhile, the gap adjusting blocks and the limiting strips on the outer sides of the connecting end pieces are designed, and the vertical installation state of the supporting profile and the transportation system can be corrected through movement of the correction sliding blocks.

Description

Technical Field

[0001] The invention relates to the technical field of profile connection, in particular to a profile end piece connection structure used in a conveying system. Background Art

[0002] Profiles refer to materials that are standardized and mass-produced using artificial materials according to certain standards. Such materials have certain appearance dimensions, certain cross-section shapes, and certain mechanical and physical properties. In the transportation system, a group of parallel aluminum alloy profiles are generally used to form a transportation mounting frame. In order to ensure stability during transportation, vertical aluminum alloy profiles need to be installed between the transportation frames to play a supporting role. In order to connect the profiles, an aluminum profile connection structure is used. In the prior art, the first aluminum profile and the second aluminum profile are generally placed vertically, and then the strip groove on the first side of the first aluminum profile close to the triangular connector is used, and the other side is close to the first side of the second aluminum profile. Bolts are used to fix one side of the two aluminum profiles to connect vertically, and the other side of the two aluminum profiles is also connected vertically using the same method. Although its structure is simple, it will appear that the two sides of the aluminum profile need to occupy a certain space to install the triangular connector, which is not very convenient to install, and the two sides of the two aluminum profiles are connected separately. The transportation system is prone to vibration during use, and the connection port will be offset to produce gaps, affecting the support stability of the aluminum profile.

[0003] Therefore, the present invention proposes a profile end piece connection structure applied to a conveying system, which solves the problem of the inconvenience of installing the two sides of mutually perpendicular profiles independently fixed by triangular connectors in the prior art. The sampling arrangement can use self-locking connectors to install and fix the vertical profiles at one time, and cooperate with the gap adjustment block to correct the offset of the profile connection end, thereby achieving the purpose of facilitating installation. At the same time, it is convenient for the later maintenance of the connecting profiles and prolonging the service life of the transportation system. Summary of the invention

[0004] The object of the present invention is to provide a profile end piece connection structure applied to a conveying system to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a profile end piece connection structure used in a conveying system, comprising a transportation system, an assembly groove is arranged on the inner side of the transportation system, a supporting profile is arranged in the middle of the transportation system, profile fixing parts are symmetrically arranged at both ends of the supporting profile, a connecting end piece is arranged on the outer side of the profile fixing part, an auxiliary fixing part is arranged on the outer side of the connecting end piece, fixing bolts are symmetrically and movably installed on both sides of the connecting end piece, threaded holes matching the fixing bolts are arranged inside the auxiliary fixing part and the assembly groove, the fixing bolts pass through the auxiliary fixing part and are fixedly connected to the inner side of the assembly groove, expansion bolts are arranged on the outer side of the profile fixing part, and the profile fixing part is fixedly installed on both ends of the supporting profile by the expansion bolts.

[0006] Preferably, a self-locking positioning column is slidably installed in the middle of the auxiliary fixing piece, and a movable pin plate is movably installed inside the auxiliary fixing piece, and one side surface of the movable pin plate is fixedly connected to one end of the self-locking positioning column, and an assembly positioning block is fixedly installed in the middle of a side surface of the connecting end piece close to the auxiliary fixing piece, and a socket compatible with the self-locking positioning column is provided in the middle of the inner wall of the assembly positioning block, and a self-locking positioning hole compatible with the self-locking positioning column is provided in the middle of a side surface of the profile fixing piece close to the connecting end piece.

[0007] Preferably, a return spring rod is fixedly installed on the surface of one side of the movable pin plate, one end of the return spring rod is fixedly connected to the inner wall of the auxiliary fixing piece, and a rotating gasket is symmetrically provided on the other side of the movable pin plate. The rotating gasket is rotatably installed inside the auxiliary fixing piece, and a movable extrusion gasket is threadedly connected to the middle part of the connecting end piece, and one side of the movable extrusion gasket is in contact with one side of the rotating gasket.

[0008] Preferably, a sliding rod is fixedly installed inside the other end of the self-locking positioning column, a sliding plate is slidably installed in the middle of the sliding rod, a spring is sleeved on the outside of the sliding rod, one end of the spring is in contact with the side surface of the sliding plate, a locking cone pin is rotatably installed on the outer side of the sliding plate, and a sliding hole adapted for the sliding plate is opened on the side wall of the self-locking positioning column.

[0009] Preferably, an extrusion cone is fixedly installed in the middle of the inner surface of the self-locking positioning hole, the inner surface of the self-locking positioning hole is provided with a locking socket adapted to the locking cone pin, and the side wall of the extrusion cone is provided with a clamping hole adapted to the locking cone pin.

[0010] Preferably, a limit strip and a gap adjustment block are symmetrically arranged on a side surface of the connecting end piece close to the auxiliary fixing piece, the limit strip is arranged on the outside of the gap adjustment block, correction sliders are symmetrically arranged on both sides of the gap adjustment block, a gear plate is fixedly installed on one side of the correction slider, a sliding groove matched with the gear plate is arranged inside the gap adjustment block, a gear is rotatably installed in the middle of the inner wall of the gap adjustment block, the side surfaces of the gear are respectively meshed with the side surfaces of the gear plate, and a rotating shaft is fixedly installed in the middle of the gear.

[0011] Preferably, a push roller is rotatably mounted on one side surface of the correction slider close to the auxiliary fixing piece, a slider plate is fixedly mounted on the other side surface of the gap adjustment block close to the limiting strip, and a spring column is fixedly mounted on the side surface of the slider plate.

[0012] Preferably, a wedge is fixedly installed on one side of the limit strip, a locking wedge matching the wedge is provided on one side of the wedge, a locking bolt is provided on one side of the locking wedge, the locking bolt is rotatably installed on the inner side of the connecting end piece, and the side wall of the locking wedge is threadedly connected to the outer surface of the locking bolt.

[0013] Preferably, an extrusion movable block is movably mounted on the inner surface of the limit strip, and an elastic supporting pad is fixedly mounted on the inner wall of the limit strip.

[0014] Preferably, an arc groove is provided on the inner side of the extrusion movable block, adaptive pads are symmetrically and movably installed on both sides of the arc groove, an adjustment support pad is fixedly installed in the middle of the arc groove, and the outer side of the adjustment support pad contacts one side of the adaptive pad.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention connects the transportation system and the supporting profile by setting a connecting end piece, an auxiliary fixing piece and a profile fixing piece, and designs a self-locking structure between the connecting end piece and the auxiliary fixing piece, so that the self-locking positioning column passes through the assembly positioning block and is inserted into the self-locking positioning hole on the inner side of the profile fixing piece to complete self-locking during the assembly process, so that the supporting profile and the transportation system are connected and fixed at one time. The structure is simple and the installation is convenient. At the same time, the gap adjustment block and the limit strip on the outer side of the connecting end piece are designed so that the correction slider can be moved to correct the vertical installation state of the supporting profile and the transportation system, and the vibration generated during the use of the transportation system to cause the supporting profile to have an offset gap is maintained, thereby ensuring the stability of the transportation system and extending the service life of the transportation system, and solving the problem of the inconvenience of installing the two sides of the mutually perpendicular profiles independently fixed by the triangular connecting pieces in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the assembly position structure of the transportation system of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure after the support profile of the present invention is installed.

[0017] Figure 3 This is a schematic diagram of the structure before the support profile of the present invention is installed.

[0018] Figure 4 This is a schematic diagram of the structure of one side before the connecting end piece of the present invention is installed.

[0019] Figure 5 This is a schematic diagram of the structure on the other side before the connecting end piece of the present invention is installed.

[0020] Figure 6 This is a schematic diagram of the top view of the structure after the connecting end piece of the present invention is installed.

[0021] Figure 7 It is a schematic diagram of the structure of the connecting end piece in an independent state of the present invention.

[0022] Figure 8 It is a schematic diagram of the internal structure after the connecting end piece and the auxiliary fixing piece of the present invention are connected.

[0023] Fig. 9 For the present invention Figure 8 A is an enlarged structural diagram of FIG.

[0024] Fig.10 It is a schematic diagram of the overall cross-sectional structure after the auxiliary fixing member and the connecting end member of the present invention are locked and connected.

[0025] Fig.11 It is a schematic diagram of the overall cross-sectional structure of the auxiliary fixing member and the connecting end member of the present invention before being locked and connected.

[0026] Fig.12 It is a schematic diagram of the limit strip structure of the present invention.

[0027] Fig.13 It is a schematic diagram of the internal structure of the limiting strip of the present invention.

[0028] Fig.14 It is a schematic diagram of the internal structure of the extrusion movable block of the present invention.

[0029] Fig.15 It is a schematic diagram of the internal structure of the self-locking positioning column of the present invention.

[0030] Fig.16 It is a schematic diagram of the structure after the self-locking positioning column and the profile fixing piece of the present invention are locked.

[0031] Fig.17 For the present invention Fig.16 Schematic diagram of the enlarged structure at B.

[0032] In the figure: 1, transport system; 11, assembly groove; 2, support profile; 3, connecting end piece; 31, fixing bolt; 311, movable extrusion gasket; 32, limit strip; 321, wedge block; 3211, locking wedge block; 3212, locking bolt; 322, extrusion movable block; 3221, adaptive pad; 3222, adjustment support pad; 323, elastic support pad; 33, gap adjustment block; 331, correction slider; 3311, push roller; 33 12. Slider plate; 3313. Spring column; 332. Gear plate; 333. Gear; 334. Rotating shaft; 34. Assembly positioning block; 4. Auxiliary fixings; 41. Self-locking positioning column; 411. Sliding rod; 412. Sliding sheet; 413. Locking cone pin; 42. Active pin plate; 43. Reset spring rod; 44. Rotating gasket; 5. Profile fixings; 51. Expansion bolt; 52. Self-locking positioning hole; 521. Extrusion cone; 522. Locking socket. DETAILED DESCRIPTION

[0033] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] For example, see Figure 1 - Fig.17The present invention provides a technical solution: a profile end piece connection structure used in a conveying system, comprising a transport system 1, an assembly groove 11 is arranged on the inner side of the transport system 1, a supporting profile 2 is arranged in the middle of the transport system 1, profile fixing pieces 5 are symmetrically arranged at both ends of the supporting profile 2, a connecting end piece 3 is arranged on the outer side of the profile fixing piece 5, an auxiliary fixing piece 4 is arranged on the outer side of the connecting end piece 3, fixing bolts 31 are symmetrically and movably installed on both sides of the connecting end piece 3, threaded holes matching the fixing bolts 31 are arranged inside the auxiliary fixing piece 4 and the assembly groove 11, the fixing bolts 31 penetrate the auxiliary fixing piece 4 and are fixedly connected with the inner side of the assembly groove 11, expansion bolts 51 are arranged on the outer side of the profile fixing piece 5, the profile fixing piece 5 is fixedly installed on both ends of the supporting profile 2 through the expansion bolts 51, a self-locking positioning column 41 is slidably installed in the middle of the auxiliary fixing piece 4, and the inner part of the auxiliary fixing piece 4 A movable pin plate 42 is movably installed, and one side surface of the movable pin plate 42 is fixedly connected to one end of the self-locking positioning column 41. An assembly positioning block 34 is fixedly installed in the middle of one side surface of the connecting end piece 3 close to the auxiliary fixing piece 4. A jack compatible with the self-locking positioning column 41 is provided in the middle of the inner wall of the assembly positioning block 34. A self-locking positioning hole 52 compatible with the self-locking positioning column 41 is provided in the middle of one side surface of the profile fixing piece 5 close to the connecting end piece 3. A reset spring rod 43 is fixedly installed on one side surface of the movable pin plate 42, and one end of the reset spring rod 43 is fixedly connected to the inner wall of the auxiliary fixing piece 4. A rotating gasket 44 is symmetrically arranged on the other side of the movable pin plate 42. The rotating gasket 44 is rotatably installed inside the auxiliary fixing piece 4. A movable extrusion gasket 311 is connected to the middle of the connecting end piece 3 through a thread, and one side of the movable extrusion gasket 311 contacts one side of the rotating gasket 44.The support profile 2 is a general-purpose aluminum alloy profile commonly found on the market, and its end face is generally provided with a hole. The expansion bolt 31 is inserted into the end hole of the support profile 2 to fix the profile fixing part 5 at both ends of the support profile 2. The fixing bolt 31 not only fixes the auxiliary fixing part 4 to the inner side of the assembly groove 11, but also overlaps and fixes the connecting end part 3 with the auxiliary fixing part 4. The specific installation method is to first fix the profile fixing part 5 at both ends of the support profile 2, and then align the self-locking positioning column 41 with the inside of the assembly positioning block 34, overlap the auxiliary fixing part 4 with the connecting end part 3, use the fixing bolt 31 to rotate and pre-fix, and then insert the auxiliary fixing part 4 into the inner side of the assembly groove 11. Note that the auxiliary fixing part 4 and the connecting end part 3 need to be pre-installed on both sides of the transportation system 1, continue to rotate the fixing bolt 31 to insert the fixing bolt 31 into the front end of the threaded hole on the inner side of the assembly groove 11, and then visually align the middle groove of the support profile 2 with the assembly positioning block 34. The profile 2 is vertically pressed and inserted between the connecting end pieces 3. At this time, the movable pin plate 42 is pushed by the elasticity of the return spring rod 43 to shrink the self-locking positioning column 41 inside the assembly positioning block 34, which can facilitate the insertion of the supporting profile 2. Finally, the fixing bolt 31 is rotated and tightened to fix the auxiliary fixing piece 4, the connecting end piece 3 and the assembly groove 11. As the fixing bolt 31 is tightened, the movable extrusion gasket 311 will retreat with the rotation of the fixing bolt 31 due to the thread, and squeeze one side of the rotating gasket 44 until it is squeezed to the limit position. At this time, the fixing bolt 31 can be tightened further, but the rotating gasket 44 will rotate due to the extrusion of the movable extrusion gasket 311, so that the other side of the rotating gasket 44 pushes the movable pin plate 42 forward, promoting the self-locking positioning column 41 to penetrate the assembly positioning block 34 and insert into the self-locking positioning hole 52 on the inner side of the profile fixing piece 5, and complete self-locking during the assembly process, so that the supporting profile 2 and the transportation system 1 are connected and fixed once, and the structure is simple and easy to install. ;

[0035] Embodiment 2: On the basis of embodiment 1, in order to make the self-locking positioning column 41 and the self-locking positioning hole 52 more stably locked, this embodiment further proposes that a sliding rod 411 is fixedly installed inside the other end of the self-locking positioning column 41, a sliding sheet 412 is slidably installed in the middle of the sliding rod 411, a spring is sleeved on the outside of the sliding rod 411, one end of the spring is in contact with the side surface of the sliding sheet 412, a locking cone pin 413 is rotatably installed on the outer side of the sliding sheet 412, a sliding hole matched with the sliding sheet 412 is provided on the side wall of the self-locking positioning column 41, an extrusion cone 521 is fixedly installed in the middle of the inner surface of the self-locking positioning hole 52, a locking socket 522 matched with the locking cone pin 413 is provided on the inner surface of the self-locking positioning hole 52, and a locking cone pin 413 is provided on the side wall of the extrusion cone 521. When the locking pin 413 is engaged with the locking bolt 412, the locking bolt 413 is engaged with the locking bolt 413. When the locking bolt 41 is engaged with the locking bolt 412, the locking bolt 413 is engaged with the locking bolt 413.

[0036] Embodiment 3, on the basis of embodiment 2, in order to enable the connecting end piece 3 to maintain the vertical supporting state of the supporting profile 2 to the transportation system 1 after being connected to the profile fixing piece 5, this embodiment further proposes that a limit strip 32 and a gap adjustment block 33 are symmetrically arranged on the surface of one side of the connecting end piece 3 close to the auxiliary fixing piece 4, the limit strip 32 is arranged on the outside of the gap adjustment block 33, and correction sliders 331 are symmetrically arranged on both sides of the gap adjustment block 33, a gear plate 332 is fixedly installed on one side of the correction slider 331, a sliding groove adapted to the gear plate 332 is arranged inside the gap adjustment block 33, a gear 333 is rotatably installed on the middle part of the inner wall of the gap adjustment block 33, and the gear 331 is symmetrically arranged on both sides of the gap adjustment block 33. The side surfaces of 33 are respectively meshed with the side surfaces of the gear plate 332, a rotating shaft 334 is fixedly installed in the middle of the gear 333, a pushing roller 3311 is rotatably installed on the side surface of the correction slider 331 close to the auxiliary fixing member 4, a slider plate 3312 is fixedly installed on the other side surface of the gap adjustment block 33 close to the side of the limiting bar 32, a spring column 3313 is fixedly installed on the side surface of the slider plate 3312, a wedge block 321 is fixedly installed on one side of the limiting bar 32, a locking wedge block 3211 adapted to the wedge block 321 is provided on one side of the wedge block 321, a locking bolt 3212 is provided on one side of the locking wedge block 3211, and the locking bolt 3212 is rotatably installed on the connecting rod The inner side of the connecting piece 3, the side wall of the locking wedge block 3211 is threadedly connected to the outer surface of the locking bolt 3212; in the present embodiment, the locking bolt 3212 is first rotated and loosened to disengage the locking wedge block 3211 from locking the wedge block 321, and then, the rotating shaft 334 is rotated with a plum blossom screwdriver to rotate the gear 333, and the gear plate 332 is rotated by the gear 333 to cause the correction slider 331 to move to both sides, and the pushing roller 3311 contacts the profile fixing part 5 during the movement of the correction slider 331, and the profile fixing part 5 is slightly adjusted and corrected in the tilted state, and the spring column 3313 on the outer side of the slider plate 3312 will push the wedge block 321 to move slightly. Point distance, ensure the vertical support state between the supporting profile 2 and the transportation system 1, and then, rotate the locking bolt 3212 in the opposite direction to make the locking wedge 3211 squeeze and lock the wedge 321. At this time, the limit strip 32 will clamp and fix the profile fixing part 5 and the two sides of the supporting profile 2 to ensure its vertical support state, and then rotate the rotating shaft 334 in the opposite direction to retract the correction slider 331, and complete the vertical installation correction of the supporting profile 2 and the transportation system 1. The operation can be repeated during the later maintenance, and the vibration generated during the use of the transportation system to cause the offset gap of the supporting profile 2 can be maintained, thereby ensuring the stability of the transportation system and extending the service life of the transportation system.

[0037] Embodiment 4, on the basis of embodiment 3, in order to cooperate with the adjustment and correction of the supporting profile 2, this embodiment further proposes that an extrusion movable block 322 is movably installed on the inner surface of the limit strip 32, and an elastic support pad 323 is fixedly installed on the inner wall of the limit strip 32, and an arc groove is provided on the inner side of the extrusion movable block 322, and adaptive pads 3221 are symmetrically and movably installed on both sides of the arc groove, and an adjustment support pad 3222 is fixedly installed in the middle of the arc groove, and the outer side of the adjustment support pad 3222 is in contact with one side of the adaptive pad 3221; in this embodiment, the limit strip 32 mainly plays a clamping and limiting role on both sides of the supporting profile 2 and the profile fixing part 5 after connection, and the extrusion movable block 322 is on the elastic support pad Under the extrusion of 323, it continuously has the effect of extruding and limiting the two sides of the supporting profile 2, so that the limit strip 32 can better cooperate with the gap adjustment block 33 to correct the tilt state of the supporting profile 2. At the same time, after being locked by the locking wedge block 3211, the elastic support pad 323 and the extrusion movable block 322 are compressed, and have an inward extrusion force, and the elastic cooperation between the adaptive pad 3221 and the adjustment support pad 3222 increases the friction force, so that the limiting state of the limit strip 32 on the supporting profile 2 is more stable. In addition, the adaptive pad 3221 and the adjustment support pad 3222 also have the function of adaptive clamping according to the state of the supporting profile 2, so as to avoid the adverse effect of the vibration of the supporting profile 2 behind on the limit strip 32.

[0038] Embodiment 5. On the basis of embodiment 4, this embodiment further proposes a connection method for the profile end piece connection structure applied to the conveying system, comprising the following steps: step 1. Insert the expansion bolt 51 into the end hole of the supporting profile 2 to fix the profile fixing part 5 at both ends of the supporting profile 2; step 2. Align the self-locking positioning column 41 with the inside of the assembly positioning block 34 so that the auxiliary fixing part 4 coincides with the connecting end piece 3, use the fixing bolt 31 to rotate and pre-fix, and then insert the auxiliary fixing part 4 into the inside of the assembly groove 11, continue to rotate the fixing bolt 31 so that the fixing bolt 31 is inserted into the front end of the threaded hole on the inside of the assembly groove 11, and complete the installation on both sides of the transportation system 1; step 3. After visually aligning the middle groove of the supporting profile 2 with the assembly positioning block 34, press the supporting profile 2 vertically and insert it between the connecting end pieces 3, and rotate and tighten it. The fixed bolt 31 fixes and locks the profile fixing part 5, the connecting end part 3, the auxiliary fixing part 4 and the assembly groove 11 to complete the connection and assembly of the supporting profile 2 and the transportation system 1; Step 4, rotate and loosen the locking bolt 3212 to disengage the locking wedge 3211 from the lock on the wedge 321, use a plum blossom screwdriver to rotate the rotating shaft 334 to rotate the gear 333, and the gear plate 332 moves to both sides to fine-tune the tilt state of the profile fixing part 5, and then rotate the locking bolt 3212 in the opposite direction to make the locking wedge 3211 squeeze and lock the wedge 321, at this time, the limit strip 32 will clamp and fix the profile fixing part 5 and the two sides of the supporting profile 2 to ensure its vertical support state, completing the vertical installation correction of the supporting profile 2 and the transportation system 1, and repeat the operation during later maintenance.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A profile end piece connection structure for use in a conveying system, comprising a transport system (1), wherein an assembly groove (11) is provided on the inner side of the transport system (1), and a supporting profile (2) is provided in the middle of the transport system (1), wherein: The supporting profile (2) is symmetrically provided with profile fixing parts (5), the outer side of the profile fixing part (5) is provided with a connecting end part (3), the outer side of the connecting end part (3) is provided with an auxiliary fixing part (4), the two sides of the connecting end part (3) are symmetrically and movably provided with fixing bolts (31), the inside of the auxiliary fixing part (4) and the assembly groove (11) are both provided with threaded holes matching the fixing bolts (31), the fixing bolts (31) penetrate the auxiliary fixing part (4) and are fixedly connected to the inner side of the assembly groove (11), the outer side of the profile fixing part (5) is provided with expansion bolts (51), and the profile fixing part (5) is fixedly installed on the two ends of the supporting profile (2) by means of the expansion bolts (51).

2. The profile end piece connection structure used in a conveying system according to claim 1, characterized in that: A self-locking column (41) is slidably mounted in the middle of the auxiliary fixing member (4), a movable pin plate (42) is movably mounted inside the auxiliary fixing member (4), a side surface of the movable pin plate (42) is fixedly connected to one end of the self-locking column (41), an assembly positioning block (34) is fixedly mounted in the middle of a side surface of the connecting end member (3) close to the auxiliary fixing member (4), a plug hole matching the self-locking column (41) is provided in the middle of an inner wall of the assembly positioning block (34), and a self-locking hole (52) matching the self-locking column (41) is provided in the middle of a side surface of the profile fixing member (5) close to the connecting end member (3).

3. The profile end piece connection structure used in a conveying system according to claim 2, characterized in that: A return spring rod (43) is fixedly mounted on one side surface of the movable pin plate (42), one end of the return spring rod (43) is fixedly connected to the inner wall of the auxiliary fixing member (4), a rotating gasket (44) is symmetrically arranged on the other side of the movable pin plate (42), the rotating gasket (44) is rotatably mounted inside the auxiliary fixing member (4), and a movable extrusion gasket (311) is threadedly connected to the middle part of the connecting end member (3), one side of the movable extrusion gasket (311) is in contact with one side of the rotating gasket (44).

4. The profile end piece connection structure used in a conveying system according to claim 2, characterized in that: A sliding rod (411) is fixedly mounted inside the other end of the self-locking positioning column (41), a sliding sheet (412) is slidably mounted in the middle of the sliding rod (411), a spring is sleeved on the outside of the sliding rod (411), one end of the spring is in contact with the side surface of the sliding sheet (412), a locking cone pin (413) is rotatably mounted on the outside of the sliding sheet (412), and a sliding hole matching the sliding sheet (412) is provided on the side wall of the self-locking positioning column (41).

5. The profile end piece connection structure used in a conveying system according to claim 2, characterized in that: An extrusion cone (521) is fixedly mounted in the middle of the inner surface of the self-locking positioning hole (52), a locking insertion hole (522) matching the locking cone pin (413) is provided on the inner surface of the self-locking positioning hole (52), and a clamping hole matching the locking cone pin (413) is provided on the side wall of the extrusion cone (521).

6. The profile end piece connection structure used in a conveying system according to claim 1, characterized in that: A limit strip (32) and a gap adjustment block (33) are symmetrically arranged on a side surface of the connecting end piece (3) close to the auxiliary fixing piece (4); the limit strip (32) is arranged on the outside of the gap adjustment block (33); correction sliders (331) are symmetrically arranged on both sides of the gap adjustment block (33); a gear plate (332) is fixedly mounted on one side of the correction slider (331); a sliding groove matching the gear plate (332) is arranged inside the gap adjustment block (33); a gear (333) is rotatably mounted on the middle part of the inner wall of the gap adjustment block (33); the side surfaces of the gear (333) are respectively meshed with the side surfaces of the gear plate (332); and a rotating shaft (334) is fixedly mounted in the middle of the gear (333).

7. The profile end piece connection structure used in a conveying system according to claim 6, characterized in that: A push roller (3311) is rotatably mounted on a surface of one side of the correction slider (331) close to the auxiliary fixing member (4), a slider plate (3312) is fixedly mounted on the surface of the other side of the gap adjustment block (33) close to the limiting strip (32), and a spring column (3313) is fixedly mounted on the side surface of the slider plate (3312).

8. The profile end piece connection structure used in a conveying system according to claim 6, characterized in that: A wedge block (321) is fixedly mounted on one side of the limit strip (32), a locking wedge block (3211) matched with the wedge block (321) is arranged on one side of the wedge block (321), a locking bolt (3212) is arranged on one side of the locking wedge block (3211), the locking bolt (3212) is rotatably mounted on the inner side of the connecting end piece (3), and the side wall of the locking wedge block (3211) is threadedly connected to the outer surface of the locking bolt (3212).

9. The profile end piece connection structure used in a conveying system according to claim 6, characterized in that: An extrusion movable block (322) is movably mounted on the inner surface of the limiting strip (32), and an elastic support pad (323) is fixedly mounted on the inner wall of the limiting strip (32).

10. The profile end piece connection structure used in a conveying system according to claim 9, characterized in that: An arc-shaped groove is provided on the inner side of the extrusion movable block (322), adaptive pads (3221) are symmetrically and movably mounted on both sides of the arc-shaped groove, an adjustment support pad (3222) is fixedly mounted in the middle of the arc-shaped groove, and the outer side of the adjustment support pad (3222) is in contact with one side of the adaptive pad (3221).

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