CN210593804U - Telescopic conveyor - Google Patents

Abstract

The utility model provides a telescopic conveyor relates to telescopic conveyor spare part technical field, has solved the installation of the bearing wheel mechanism that exists among the prior art and has dismantled inconvenient technical problem relatively. The device comprises a bearing wheel mechanism and a connecting plate, wherein the connecting plate is arranged on a frame of the telescopic conveyor, an opening limiting groove is formed in the connecting plate, and the end part of the bearing wheel mechanism is positioned in the opening limiting groove and clamped on the connecting plate; the opening limiting groove is communicated with one circumferential side face of the connecting plate, and the bearing wheel mechanism can move to the outside of the connecting plate along the opening limiting groove under the action of external force. The utility model is used for support and moving frame.

Description

Telescopic conveyor

Technical Field

The utility model belongs to the technical field of telescopic conveyor spare part technique and specifically relates to a telescopic conveyor is related to.

Background

The telescopic conveyor is also called as a telescopic car loader, can be matched with other conveying equipment and a material sorting system for use, realizes the automatic production of material warehousing or vehicle loading and unloading, is generally used for occasions such as logistics centers, enterprise warehousing, express delivery, airports and the like, and greatly improves the time saving, labor saving and high efficiency in the process of cargo handling through the application of the telescopic conveyor. At present, the existing telescopic conveyor is a five-section telescopic conveyor, which comprises a first-stage fixed section (a first-stage frame), a second-stage telescopic section (a second-stage frame), a third-stage telescopic section (a third-stage frame), a fourth-stage telescopic section (a fourth-stage frame) and a fifth-stage telescopic section (a fifth-stage frame), wherein the first-stage telescopic section is a fixed end, is connected by fixed support legs and is fixed on a ground surface, and the other telescopic sections at different stages are connected in sequence.

The traditional five-section telescopic conveyor comprises a bearing wheel mechanism and a limiting wheel mechanism (the limiting wheel mechanism comprises an upper limiting wheel, a lower limiting wheel and a side limiting wheel), the bearing wheel mechanism is fixed at the front end of each level of frame, and the bearing wheel mechanism has the functions of supporting the frame and facilitating the movement of the frame; the limiting wheel mechanism is fixed at the tail end of each level of frame and is convenient for the frame to move.

The applicant has found that the prior art has at least the following technical problems:

the bearing wheel mechanism is relatively inconvenient to mount and dismount; the limiting wheel mechanism is simple in structure and difficult to achieve fine adjustment between two adjacent frames.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a telescopic conveyor to solve the bearing wheel mechanism installation that exists among the prior art and dismantle inconvenient technical problem relatively. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a telescopic conveyor, including bearing wheel mechanism and connecting plate, wherein, the connecting plate sets up on telescopic conveyor's frame, be provided with the opening spacing groove on the connecting plate, the tip of bearing wheel mechanism is located the opening spacing inslot and blocks on the connecting plate; the opening limiting groove is communicated with one circumferential side face of the connecting plate, and the bearing wheel mechanism can move to the outside of the connecting plate along the opening limiting groove under the action of external force.

Optionally, the structure of the opening limiting groove is an L-shaped structure; the opening limiting groove comprises an opening moving groove and a limiting square groove, the opening moving groove is communicated with the limiting square groove, the opening moving groove is communicated with one circumferential side face of the connecting plate, and the end part of the bearing wheel mechanism is clamped in the limiting square groove;

the connecting plate is also provided with a first threaded hole, and a bolt penetrates through the frame and is in threaded connection with the first threaded hole.

Optionally, a first upper limiting wheel is arranged between the primary frame of the telescopic conveyor and the secondary frame of the telescopic conveyor, the first upper limiting wheel is connected with the tail end of the secondary frame through a first adjusting structure, and the first upper limiting wheel is rotatably connected with the primary frame;

the first upper limiting wheel comprises a bracket and a first roller wheel, the first roller wheel is rotatably connected with the bracket, and the first roller wheel is rotatably connected with the primary frame;

the first adjusting structure comprises a first adjusting screw and a cushion block, the cushion block is fixedly arranged on the secondary frame, the first adjusting screw penetrates through the support and is fixedly connected with the cushion block, a nut is connected onto the first adjusting screw, and the support is limited on the first adjusting screw through the nut.

Optionally, second upper limiting wheels are respectively arranged between the secondary frame of the telescopic conveyor and the tertiary frame of the telescopic conveyor and between the tertiary frame and the quaternary frame of the telescopic conveyor, the second upper limiting wheels are connected with the tail end of the tertiary frame or the quaternary frame through a second adjusting structure, and the second upper limiting wheels are rotatably connected with the secondary frame or the tertiary frame;

the second upper limiting wheel comprises a connecting shaft, first connecting pieces and second rollers, two end parts of the connecting shaft are respectively connected with one first connecting piece, each first connecting piece is rotatably connected with two second rollers, and the second rollers are rotatably connected with the secondary frame or the tertiary frame;

the second adjusting structure comprises a second adjusting screw and a second connecting piece, the second connecting piece is connected to the third-level frame or the fourth-level frame, the second connecting piece is in contact with the connecting shaft and can limit the moving direction of the connecting shaft, the second adjusting screw can penetrate through the second connecting piece and can be in contact with the connecting shaft, and the connecting shaft can be pushed by the second adjusting screw to move.

Optionally, the second connecting piece includes joint plate and regulating plate, the joint plate with the regulating plate passes through bolted connection, the joint plate with tertiary frame or the level four frame is connected, be provided with U type open slot on the regulating plate, be provided with second screw hole and breach on the joint plate, the connecting axle can pass U type open slot with the breach, second adjusting screw with the second screw hole is connected and passes the second screw hole with the connecting axle contacts.

Optionally, a third upper limiting wheel is arranged between the fourth-stage frame of the telescopic conveyor and the fifth-stage frame of the telescopic conveyor, the third upper limiting wheel is connected with the tail end of the fifth-stage frame through a third adjusting structure, and the third upper limiting wheel is rotatably connected with the fourth-stage frame;

the third upper limiting wheel comprises a third connecting piece and a third roller wheel, and the third connecting piece is rotatably connected with the third roller wheel;

the third adjusting structure comprises a third adjusting screw and a first connecting block, the first connecting block is connected with the five-stage frame, the first connecting block is rotatably connected with the third connecting piece, the third adjusting screw penetrates through the first connecting block and is in contact with the third connecting piece, and the third connecting piece can rotate under the pushing of the third adjusting screw.

Optionally, the first connecting block includes a first fixing block and a first supporting block, and the fifth-stage frame and the first supporting block are connected through the first fixing block;

the first fixing block is provided with a first rotating hole, the first supporting block is provided with a third threaded hole, the first rotating hole is perpendicular to the axes of the third threaded hole, the third connecting piece is rotatably connected with the first rotating hole, and the third adjusting screw penetrates through the third threaded hole and is in contact with the third connecting piece.

Optionally, a side limiting wheel is arranged between two adjacent frames on the telescopic conveyor, the side limiting wheel is connected with the tail end of one frame through a fourth adjusting structure, and the side limiting wheel is rotatably connected with the other frame;

the side limiting wheel comprises a fourth roller, fourth connecting pieces and a rotating block, the fourth roller and the rotating block are both positioned between the two fourth connecting pieces, the fourth roller is rotationally connected with the fourth connecting pieces, the rotating block is fixedly connected with the fourth connecting pieces, and the fourth roller is rotationally connected with the frame;

the fourth adjusting structure comprises a fourth adjusting screw and a second connecting block, the second connecting block is located between the two fourth connecting pieces and is connected with the fourth connecting pieces in a rotating mode, the second connecting block is connected with the tail end of the frame, the fourth adjusting screw penetrates through the second connecting block and is in contact with the rotating block, and the rotating block can rotate under the pushing of the fourth adjusting screw.

Optionally, a lower limiting wheel is arranged between two adjacent frames on the telescopic conveyor, the lower limiting wheel is connected with the tail end of one frame through a fifth adjusting structure, and the lower limiting wheel is rotatably connected with the other frame;

the lower limiting wheel comprises a fifth connecting piece and a fifth roller, and the fifth connecting piece is rotationally connected with the fifth roller;

the fifth adjusting structure comprises a fifth adjusting screw and a third connecting block, the third connecting block is connected with the tail end of the frame, the third connecting block is rotatably connected with a fifth connecting piece, the fifth adjusting screw penetrates through the third connecting block and is in contact with the fifth connecting piece, and the fifth connecting piece can be driven by the fifth adjusting screw to rotate.

Optionally, the third connecting block includes a second fixing block, a second supporting block and a fixing plate, the second fixing block and the fixing plate are fixedly connected through the second supporting block, and the fixing plate is connected to the frame;

the second fixing block is provided with a second rotating hole, the second supporting block is provided with a fourth threaded hole, the second rotating hole is perpendicular to the axes of the fourth threaded hole, the fifth connecting piece is rotatably connected with the second rotating hole, and the fifth adjusting screw penetrates through the fourth threaded hole and is in contact with the fifth connecting piece.

The utility model provides a telescopic conveyor will be very convenient to install it on the frame or dismantle from the frame through removing bearing wheel mechanism, and bearing wheel mechanism's tip can move outside the connecting plate along the opening spacing groove under the exogenic action, perhaps removes outside the connecting plate to opening spacing inslot and joint on the connecting plate to solve the bearing wheel mechanism installation that exists among the prior art and dismantle inconvenient technical problem relatively.

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 these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a telescopic conveyor provided by an embodiment of the present invention;

fig. 2 is a cross-sectional view of a telescopic conveyor according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a bearing wheel mechanism of a telescopic conveyor according to an embodiment of the present invention;

fig. 4 is a partial schematic structural view of a bearing wheel mechanism of a telescopic conveyor according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a position of a bearing wheel mechanism of a telescopic conveyor on the telescopic conveyor according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first upper limiting wheel of the telescopic conveyor according to the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second upper limiting wheel of the telescopic conveyor according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a second upper limiting wheel of the telescopic conveyor according to the embodiment of the present invention;

fig. 9 is a schematic structural view of a third upper limiting wheel of the telescopic conveyor according to the embodiment of the present invention;

fig. 10 is an exploded view of a third upper limiting wheel of the telescopic conveyor according to the embodiment of the present invention;

fig. 11 is a schematic structural view of a side limiting wheel of a telescopic conveyor according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a lower limit wheel of a telescopic conveyor according to an embodiment of the present invention;

fig. 13 is an exploded view of a lower limit wheel of a telescopic conveyor according to an embodiment of the present invention;

fig. 14 is a position diagram of a spacing wheel of the telescopic conveyor between a primary frame and a secondary frame according to an embodiment of the present invention;

fig. 15 is a position diagram of a spacing wheel of the telescopic conveyor according to the embodiment of the present invention between the secondary frame and the tertiary frame;

fig. 16 is a position diagram of a spacing wheel of the telescopic conveyor between a tertiary frame and a quaternary frame according to an embodiment of the present invention;

fig. 17 is a position diagram of a spacing wheel of the telescopic conveyor between a fourth-stage frame and a fifth-stage frame according to the embodiment of the present invention;

in the figure 1, a bearing wheel mechanism; 2. a connecting plate; 21. opening a limit groove; 211. an opening moving groove; 212. a limiting square groove; 22. a first threaded hole; 3. a first upper limiting wheel; 31. a support; 32. a first roller; 4. a first adjustment structure; 41. a first adjusting screw; 42. cushion blocks; 43. a nut; 5. a second upper limiting wheel; 51. a connecting shaft; 52. a first connecting member; 53. a second roller; 6. a second adjustment structure; 61. a second adjusting screw; 62. a second connecting member; 621. a clamping and connecting plate; 6211. a second threaded hole; 6212. a notch; 622. an adjusting plate; 6221. a U-shaped open slot; 7. a third upper limiting wheel; 71. a third connecting member; 711. a first receiving part; 72. a third roller; 8. a third adjustment structure; 81. a third adjusting screw; 82. a first connection block; 821. a first fixed block; 8211. a first rotation hole; 822. a first support block; 8221. a third threaded hole; 9. a side limiting wheel; 91. a fourth roller; 92. a fourth connecting member; 93. rotating the block; 10. a fourth adjustment structure; 101. a fourth adjusting screw; 102. a second connecting block; 20. a lower limiting wheel; 201. a fifth connecting member; 2011. a second receiving part; 202. a fifth roller; 30. a fifth adjustment feature; 301. a fifth adjusting screw; 302. a third connecting block; 3021. a second fixed block; 30211. a second rotation hole; 3022. a second support block; 30221. a fourth threaded hole; 3023. a fixing plate; 40. a primary frame; 50. a secondary frame; 60. a tertiary framework; 70. a four-stage frame; 80. a five-stage frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a telescopic conveyor, including bearing wheel mechanism 1 and connecting plate 2, wherein, see fig. 2-5, connecting plate 2 sets up on telescopic conveyor's frame, connecting plate 2 and frame can be bolted connection, also can be welded connection, connecting plate 2 distributes on two relative inside walls of frame and is located the front end of frame at all levels, be provided with opening spacing groove 21 on connecting plate 2, opening spacing groove 21 is the through-hole, the tip of bearing wheel mechanism 1 is located opening spacing groove 21 and blocks on connecting plate 2; the opening limiting groove 21 is communicated with one circumferential side face of the connecting plate 2, and the bearing wheel mechanism 1 can move to the outside of the connecting plate 2 along the opening limiting groove 21 under the action of external force. The utility model provides a telescopic conveyor, through removing bearing wheel mechanism 1 will be very convenient install it on the frame or dismantle from the frame, bearing wheel mechanism 1's tip can move to outside connecting plate 2 along opening spacing groove 21 under the exogenic action, perhaps moves to opening spacing groove 21 in and the joint is on connecting plate 2 from connecting plate 2 outward to solve the bearing wheel mechanism installation that exists among the prior art and dismantle inconvenient technical problem relatively.

As an alternative embodiment, referring to fig. 3 and 4, the structure of the opening limiting groove 21 is an L-shaped structure; the opening limiting groove 21 comprises an opening moving groove 211 and a limiting square groove 212, the opening moving groove 211 and the limiting square groove 212 are through holes, the opening moving groove 211 is communicated with the limiting square groove 212, the opening moving groove 211 is communicated with one circumferential side face of the connecting plate 2, the end part of the bearing wheel mechanism 1 is clamped in the limiting square groove 212, and the end part of the bearing wheel mechanism 1 can be of a milling square structure and can be matched with the limiting square groove 212;

the connecting plate 2 is also provided with a first threaded hole 22, and a bolt penetrates through the frame and is in threaded connection with the first threaded hole 22.

As an alternative embodiment, referring to fig. 6 and 14, a first upper limiting wheel 3 is arranged between the primary frame 40 of the telescopic conveyor and the secondary frame 50 of the telescopic conveyor, the first upper limiting wheel 3 is connected with the tail end of the secondary frame 50 through a first adjusting structure 4, and the first upper limiting wheel 3 is rotatably connected with the primary frame 40;

the first upper limiting wheel 3 comprises a bracket 31 and first rollers 32, the first rollers 32 are rotatably connected with the bracket 31, the first rollers 32 are rotatably connected with the primary frame 40, the bracket 31 can be of a frame structure, one side of the bracket 31 is rotatably connected with the two first rollers 32, one first upper limiting wheel 3 can be connected with two first adjusting structures 4, and the two first adjusting structures 4 are respectively positioned at two end areas of the bracket 31;

the first adjusting structure 4 comprises a first adjusting screw 41 and a cushion block 42, the cushion block 42 is fixedly arranged on the second-stage frame 50, the first adjusting screw 41 penetrates through the support 31 and is fixedly connected with the cushion block 42, two ends of the support 31 can be in contact with the cushion block 42 or the second-stage frame 50, the first adjusting screw 41 is connected with nuts 43, the number of the nuts 43 on one first adjusting screw 41 is at least two, the two nuts 43 are respectively positioned on two opposite sides of the support 31, the support 31 is limited on the first adjusting screw 41 through the nuts 43, when the nuts 43 are rotated, the support 31 can move along the length direction of the first adjusting screw 41, and the fine adjustment of the distance between the first-stage frame 40 and the second-stage frame 50 in the height direction can be realized.

As an alternative embodiment, referring to fig. 7, 8, 15 and 16, a second upper limiting wheel 5 is arranged between the secondary frame 50 of the telescopic conveyor and the tertiary frame 60 of the telescopic conveyor, and between the tertiary frame 60 and the quaternary frame 70 of the telescopic conveyor, the second upper limiting wheel 5 is connected with the tail end of the tertiary frame 60 or the quaternary frame 70 through a second adjusting structure 6, and the second upper limiting wheel 5 is rotatably connected with the secondary frame 50 or the tertiary frame 60;

the second upper limiting wheel 5 comprises a connecting shaft 51, first connecting pieces 52 and second rollers 53, the two ends of the connecting shaft 51 are connected with one first connecting piece 52, each first connecting piece 52 is rotatably connected with two second rollers 53, the two second rollers 53 are positioned on the same side of the first connecting piece 52, the connecting shaft 51 and the second rollers 53 are respectively positioned on two opposite sides of the first connecting piece, the second rollers 53 are rotatably connected with the secondary frame 50 or the tertiary frame 60, and the two end regions of the second upper limiting wheel 5 are respectively connected with one second adjusting structure 6;

the second adjusting structure 6 comprises a second adjusting screw 61 and a second connecting piece 62, the second connecting piece 62 is connected to the third-level frame 60 or the fourth-level frame 70, the second connecting piece 62 is in contact with the connecting shaft 51, the second connecting piece 62 can limit the moving direction of the connecting shaft 51, the second adjusting screw 61 can penetrate through the second connecting piece 62 and is in contact with the connecting shaft 51, the connecting shaft 51 can move under the pushing of the second adjusting screw 61, the second upper limiting wheel 5 can move along the height direction of the telescopic conveyor, and the fine adjustment of the distance between the second-level frame 50 and the third-level frame 60 and the distance between the third-level frame 60 and the fourth-level frame 70 in the height direction can be realized.

As an alternative embodiment, referring to fig. 8, the second connecting member 62 includes a clamping plate 621 and an adjusting plate 622, the clamping plate 621 is connected to the adjusting plate 622 through a bolt, the clamping plate 621 is connected to the tertiary frame 60 or the quaternary frame 70, a U-shaped open slot 6221 is provided on the adjusting plate 622, the U-shaped open slot 6221 is a through hole, a second threaded hole 6211 and a notch 6212 are provided on the clamping plate 621, the connecting shaft 51 can pass through the U-shaped open slot 6221 and the notch 6212, the second adjusting screw 61 is connected to the second threaded hole 6211 and contacts the connecting shaft 51 through the second threaded hole 6211, and when the second adjusting screw 61 is rotated, the connecting shaft 51 can move along the U-shaped open slot 6221.

As an alternative embodiment, referring to fig. 9, 10 and 17, a third upper limiting wheel 7 is arranged between the fourth-stage frame 70 of the telescopic conveyor and the fifth-stage frame 80 of the telescopic conveyor, the third upper limiting wheel 7 is connected with the tail end of the fifth-stage frame 80 through a third adjusting structure 8, and the third upper limiting wheel 7 is rotatably connected with the fourth-stage frame 70;

the third upper limiting wheel 7 comprises a third connecting piece 71 and a third roller 72, the end part of the third connecting piece 71 is rotatably connected with the third roller 72, and the end part of the third connecting piece 71 extends to the side to form a first bearing part 711;

the third adjusting structure 8 includes a third adjusting screw 81 and a first connecting block 82, the first connecting block 82 is connected to the fifth-stage frame 80, the first connecting block 82 is rotatably connected to another end of the third connecting member 71, the third adjusting screw 81 passes through the first connecting block 82 and contacts with the first receiving portion 711, and the third connecting member 71 can rotate under the pushing of the third adjusting screw 81, so that the distance between the fourth-stage frame 70 and the fifth-stage frame 80 in the height direction can be finely adjusted.

As an alternative embodiment, the first connecting block 82 has an L-shaped structure, the first connecting block 82 includes a first fixing block 821 and a first supporting block 822, the five-stage frame 80 and the first supporting block 822 are connected by the first fixing block 821, and the five-stage frame 80 and the first supporting block 822 are located at two opposite sides of the first fixing block 821;

first fixed block 821 is provided with first rotation hole 8211, first supporting block 822 is provided with third screw hole 8221, first rotation hole 8211 and third screw hole 8221 are perpendicular to each other in axis, third connecting piece 71 is connected with first rotation hole 8211 in a rotating manner, first fixed block 821 and third gyro wheel 72 are located on the same side of third connecting piece 71, and third adjusting screw 81 passes through third screw hole 8221 and contacts with third connecting piece 71.

As an alternative embodiment, referring to fig. 11 and fig. 14 to 17, a side limiting wheel 9 is arranged between two adjacent frames on the telescopic conveyor, the side limiting wheel 9 is connected with the tail end of one frame through a fourth adjusting structure 10, and the side limiting wheel 9 is rotatably connected with the other frame;

the side limiting wheel 9 comprises a fourth roller 91, a fourth connecting piece 92 and a rotating block 93, the fourth roller 91 and the rotating block 93 are both positioned between the two fourth connecting pieces 92, the fourth connecting pieces 92 can be of an L-shaped structure, the fourth roller 91 is rotatably connected with the end parts of the fourth connecting pieces 92, the rotating block 93 is fixedly connected with the fourth connecting pieces 92, the rotating block 93 is positioned in the middle area of the fourth connecting pieces 92, the rotating block 93 can protrude out of the fourth connecting pieces 92, and the fourth roller 91 is rotatably connected with the frame;

the fourth adjusting structure 10 includes a fourth adjusting screw 101 and a second connecting block 102, the second connecting block 102 is located between two fourth connecting members 92, the second connecting block 102 is rotatably connected to another end of the fourth connecting member 92, the second connecting block 102 is connected to the tail end of the frame, one side of the second connecting block 102, which is far away from the frame, protrudes out of the fourth connecting member 92, the fourth adjusting screw 101 passes through the protruding portion of the second connecting block 102 and contacts with the protruding portion of the rotating block 93, the rotating block 93 can rotate under the pushing of the fourth adjusting screw 101, and the fine adjustment of the distance between two adjacent frames in the width direction can be realized.

As an alternative embodiment, referring to fig. 12 to 17, a lower limiting wheel 20 is arranged between two adjacent frames on the telescopic conveyor, the lower limiting wheel 20 is connected with the tail end of one frame through a fifth adjusting structure 30, and the lower limiting wheel 20 is rotatably connected with the other frame; the structure of the lower limiting wheel 20 between the primary frame 40 and the secondary frame 50 is the same as that of the third upper limiting wheel 7, and the structures of the other lower limiting wheels 20 are as follows:

the lower limit wheel 20 comprises a fifth connecting piece 201 and a fifth roller 202, the end part of the fifth connecting piece 201 is rotatably connected with the fifth roller 202, and the end part of the fifth connecting piece 201 extends to the side to form a second bearing part 2011;

the fifth adjusting structure 30 includes a fifth adjusting screw 301 and a third connecting block 302, the third connecting block 302 is connected to the tail end of the frame, the third connecting block 302 is rotatably connected to another end of the fifth connecting member 201, the fifth adjusting screw 301 passes through the third connecting block 302 and contacts with the second receiving portion 2011, the fifth connecting member 201 can rotate under the pushing of the fifth adjusting screw 301, and therefore the distance between two adjacent frames in the height direction can be finely adjusted.

As an alternative embodiment, the third connecting block 302 includes a second fixing block 3021, a second supporting block 3022 and a fixing plate 3023, the second fixing block 3021 and the fixing plate 3023 are fixedly connected through the second supporting block 3022, and the fixing plate 3023 is connected with the frame;

a second rotary hole 30211 is formed in the second fixed block 3021, a fourth screw hole 30221 is formed in the second support block 3022, the second rotary hole 30211 is perpendicular to the fourth screw hole 30221, the fifth connecting member 201 is rotatably connected to the second rotary hole 30211, and the fifth adjusting screw 301 passes through the fourth screw hole 30221 and contacts with the fifth connecting member 201.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A telescopic conveyor, characterized in that it comprises a bearing wheel mechanism (1) and a connecting plate (2), wherein,

the connecting plate (2) is arranged on a frame of the telescopic conveyor, an opening limiting groove (21) is formed in the connecting plate (2), and the end part of the bearing wheel mechanism (1) is located in the opening limiting groove (21) and clamped on the connecting plate (2); the opening limiting groove (21) is communicated with one circumferential side face of the connecting plate (2), and the bearing wheel mechanism (1) can move to the outside of the connecting plate (2) along the opening limiting groove (21) under the action of external force.

2. The telescopic conveyor according to claim 1, wherein the structure of the opening-limiting groove (21) is an L-shaped structure; the opening limiting groove (21) comprises an opening moving groove (211) and a limiting square groove (212), the opening moving groove (211) is communicated with the limiting square groove (212), the opening moving groove (211) is communicated with one circumferential side face of the connecting plate (2), and the end part of the bearing wheel mechanism (1) is clamped in the limiting square groove (212);

the connecting plate (2) is further provided with a first threaded hole (22), and a bolt penetrates through the frame and is in threaded connection with the first threaded hole (22).

3. The telescopic conveyor according to claim 1, wherein a first upper limiting wheel (3) is arranged between the primary frame (40) of the telescopic conveyor and the secondary frame (50) of the telescopic conveyor, the first upper limiting wheel (3) is connected with the tail end of the secondary frame (50) through a first adjusting structure (4), and the first upper limiting wheel (3) is rotatably connected with the primary frame (40);

the first upper limiting wheel (3) comprises a bracket (31) and a first roller (32), the first roller (32) is rotatably connected with the bracket (31), and the first roller (32) is rotatably connected with the primary frame (40);

the first adjusting structure (4) comprises a first adjusting screw rod (41) and a cushion block (42), the cushion block (42) is fixedly arranged on the secondary frame (50), the first adjusting screw rod (41) penetrates through the support (31) and is fixedly connected with the cushion block (42), a nut (43) is connected onto the first adjusting screw rod (41), and the support (31) is limited on the first adjusting screw rod (41) through the nut (43).

4. The telescopic conveyor according to claim 1, wherein a second upper limiting wheel (5) is arranged between the secondary frame (50) and the tertiary frame (60) of the telescopic conveyor and between the tertiary frame (60) and the quaternary frame (70) of the telescopic conveyor, the second upper limiting wheel (5) is connected with the tail end of the tertiary frame (60) or the quaternary frame (70) through a second adjusting structure (6), and the second upper limiting wheel (5) is rotatably connected with the secondary frame (50) or the tertiary frame (60);

the second upper limiting wheel (5) comprises a connecting shaft (51), first connecting pieces (52) and second rollers (53), two end parts of the connecting shaft (51) are connected with one first connecting piece (52), each first connecting piece (52) is rotatably connected with two second rollers (53), and the second rollers (53) are rotatably connected with the secondary frame (50) or the tertiary frame (60);

the second adjusting structure (6) comprises a second adjusting screw (61) and a second connecting piece (62), the second connecting piece (62) is connected to the third-stage frame (60) or the fourth-stage frame (70), the second connecting piece (62) is in contact with the connecting shaft (51) and the second connecting piece (62) can limit the moving direction of the connecting shaft (51), the second adjusting screw (61) can penetrate through the second connecting piece (62) and is in contact with the connecting shaft (51), and the connecting shaft (51) can move under the pushing of the second adjusting screw (61).

5. The telescopic conveyor according to claim 4, wherein the second connecting piece (62) comprises a clamping plate (621) and an adjusting plate (622), the clamping plate (621) is connected with the adjusting plate (622) through a bolt, the clamping plate (621) is connected with the tertiary frame (60) or the quaternary frame (70), a U-shaped open slot (6221) is arranged on the adjusting plate (622), a second threaded hole (6211) and a notch (6212) are arranged on the clamping plate (621), the connecting shaft (51) can penetrate through the U-shaped open slot (6221) and the notch (6212), and the second adjusting screw (61) is connected with the second threaded hole (6211) and penetrates through the second threaded hole (6211) to be in contact with the connecting shaft (51).

6. The telescopic conveyor according to claim 1, wherein a third upper limiting wheel (7) is arranged between the fourth-stage frame (70) of the telescopic conveyor and the fifth-stage frame (80) of the telescopic conveyor, the third upper limiting wheel (7) is connected with the tail end of the fifth-stage frame (80) through a third adjusting structure (8), and the third upper limiting wheel (7) is rotatably connected with the fourth-stage frame (70);

the third upper limiting wheel (7) comprises a third connecting piece (71) and a third roller (72), and the third connecting piece (71) is rotatably connected with the third roller (72);

the third is adjusted structure (8) and is included third adjusting screw (81) and first connecting block (82), first connecting block (82) with five-stage frame (80) are connected, first connecting block (82) with third connecting piece (71) rotate and are connected, third adjusting screw (81) pass first connecting block (82) and with third connecting piece (71) contact, third connecting piece (71) can take place to rotate under the promotion of third adjusting screw (81).

7. The telescopic conveyor according to claim 6, wherein the first connecting block (82) includes a first fixing block (821) and a first supporting block (822), the fifth stage frame (80) and the first supporting block (822) being connected by the first fixing block (821);

be provided with first rotation hole (8211) on first fixed block (821), be provided with third screw hole (8221) on first supporting block (822), first rotation hole (8211) with axis looks perpendicular between third screw hole (8221), third connecting piece (71) with first rotation hole (8211) is rotated and is connected, third adjusting screw (81) pass third screw hole (8221) and with third connecting piece (71) contacts.

8. The telescopic conveyor according to claim 1, wherein a side limiting wheel (9) is arranged between two adjacent frames on the telescopic conveyor, the side limiting wheel (9) is connected with the tail end of one frame through a fourth adjusting structure (10), and the side limiting wheel (9) is rotatably connected with the other frame;

the side limiting wheel (9) comprises a fourth roller (91), a fourth connecting piece (92) and a rotating block (93), the fourth roller (91) and the rotating block (93) are located between the two fourth connecting pieces (92), the fourth roller (91) is rotatably connected with the fourth connecting pieces (92), the rotating block (93) is fixedly connected with the fourth connecting pieces (92), and the fourth roller (91) is rotatably connected with the frame;

the fourth adjusting structure (10) comprises a fourth adjusting screw (101) and a second connecting block (102), the second connecting block (102) is located between the two fourth connecting pieces (92), the second connecting block (102) is rotatably connected with the fourth connecting pieces (92), the second connecting block (102) is connected with the tail end of the frame, the fourth adjusting screw (101) penetrates through the second connecting block (102) and is in contact with the rotating block (93), and the rotating block (93) can rotate under the pushing of the fourth adjusting screw (101).

9. The telescopic conveyor according to claim 1, wherein a lower limit wheel (20) is arranged between two adjacent frames on the telescopic conveyor, the lower limit wheel (20) is connected with the tail end of one frame through a fifth adjusting structure (30), and the lower limit wheel (20) is rotatably connected with the other frame;

the lower limiting wheel (20) comprises a fifth connecting piece (201) and a fifth roller (202), and the fifth connecting piece (201) is rotatably connected with the fifth roller (202);

the fifth adjusting structure (30) comprises a fifth adjusting screw (301) and a third connecting block (302), the third connecting block (302) is connected with the tail end of the frame, the third connecting block (302) is rotatably connected with the fifth connecting piece (201), the fifth adjusting screw (301) penetrates through the third connecting block (302) and is in contact with the fifth connecting piece (201), and the fifth connecting piece (201) can be driven by the fifth adjusting screw (301) to rotate.

10. The telescopic conveyor according to claim 9, wherein the third connecting block (302) comprises a second fixed block (3021), a second supporting block (3022) and a fixed plate (3023), the second fixed block (3021) and the fixed plate (3023) are fixedly connected through the second supporting block (3022), and the fixed plate (3023) is connected with the frame;

the second fixed block (3021) is provided with a second rotating hole (30211), the second supporting block (3022) is provided with a fourth threaded hole (30221), the second rotating hole (30211) is perpendicular to the fourth threaded hole (30221), the fifth connecting piece (201) is rotatably connected with the second rotating hole (30211), and the fifth adjusting screw (301) passes through the fourth threaded hole (30221) and contacts with the fifth connecting piece (201).

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