阅读说明：本技术 缓冲型旋钮折叠式跑步机 (Buffer type knob folding running machine ) 是由 宋明超 刘剑 于 2020-12-24 设计创作，主要内容包括：本发明公开了一种缓冲型旋钮折叠式跑步机,包括立柱、机架、跑板和盖板,机架处设有底座,底座安装于机架；立柱和跑板之间通过折叠结构连接,通过拧松所述折叠结构使得所述立柱能够向后折叠于所述跑板实现收纳；机架包括前支架、左支架和右支架,左支架的前端与前支架的后端组装连接,右支架的前端与所述前支架的后端组装连接,左支架、右支架和前支架分别为铝合金浇铸一体件；底座设有多个安装槽,每一安装槽均安装有一气垫。本发明的跑步机质轻,便于折叠收纳,且具有较佳的减震缓冲效果。(The invention discloses a buffer type knob folding treadmill, which comprises a stand column, a rack, a running plate and a cover plate, wherein a base is arranged at the rack and is arranged on the rack; the upright post and the running board are connected through a folding structure, and the upright post can be folded backwards on the running board to be stored by unscrewing the folding structure; the rack comprises a front support, a left support and a right support, the front end of the left support is assembled and connected with the rear end of the front support, the front end of the right support is assembled and connected with the rear end of the front support, and the left support, the right support and the front support are respectively an aluminum alloy cast integral piece; the base is equipped with a plurality of mounting grooves, and an air cushion is all installed to each mounting groove. The treadmill is light in weight, convenient to fold and store and has better damping and buffering effects.)

1. The utility model provides a foldable treadmill of buffering type knob which characterized in that: the running machine comprises an upright post (1), a rack (2), a running plate (3) and a cover plate (5), wherein the running plate is mounted on the rack, the cover plate is also mounted on the rack, a base (7) is arranged at the rack, and the base is mounted on the rack;

the upright post and the running board are connected through the folding structure (4), and the upright post can be folded backwards on the running board to achieve storage by unscrewing the folding structure;

the folding structure comprises an installation block (41), a connecting seat (42), a shaft sleeve (43), a knob shaft (44) and a knob (45), wherein one side of the installation block is installed on the edge of the running board, and the other side of the installation block is provided with a first clamping part (411);

a first threaded hole (412) is formed in the mounting block, a mounting through hole (421) is formed in the connecting seat, the rotating shaft, the shaft sleeve and the connecting seat are sequentially sleeved outside the inner sleeve, the rotating shaft comprises a threaded section (441) and a fixed section (442), the threaded section of the rotating shaft can be in threaded connection with the mounting block, and the fixed section of the rotating shaft can be fixedly connected with the shaft sleeve;

a second clamping part (422) matched with the first clamping part is arranged on one side of the connecting seat, which is close to the mounting block;

the upper part of the connecting seat is connected with the upright post;

whether the thread section of the rotating shaft is separated from the first threaded hole of the mounting block or not is driven by rotating the knob, so that whether the second clamping part of the connecting seat is separated from the first clamping part of the mounting block or not is realized, and whether the upright post rotates or not is further realized;

the rack comprises a front support (21), a left support (22) and a right support (23), the front end of the left support is assembled and connected with the rear end of the front support, the front end of the right support is assembled and connected with the rear end of the front support, and the left support, the right support and the front support are respectively an aluminum alloy cast integral piece;

the front bracket is provided with two first motor mounting seats (211) which are provided with grooves (2111) matched with a motor shaft, and the motors are mounted on the front bracket through screws and detachable fixing seats (24);

the front support and the rear support are provided with a first running board mounting seat (221) for mounting a running board, the upper surface of the first running board mounting seat is a plane, the lower surface of the first running board mounting seat is provided with a plurality of reinforcing ribs for increasing the strength of the first running board mounting seat, and the thickness of the first running board mounting seat is 10-14 mm;

a buffer sheet (25) for buffering is arranged between the first running plate mounting seat and the running plate;

the front bracket and the rear bracket are also provided with a second running board mounting seat (222) for mounting a running board, the upper surface of the second running board mounting seat is a plane, the lower surface of the second running board mounting seat is provided with a plurality of reinforcing ribs (2221) for increasing the strength of the second running board mounting seat, and the thickness of the second running board mounting seat is 6-8 mm;

the running boards of different models are installed by installing the running boards on the first running board installation seat or the second running board installation seat;

the base is provided with a plurality of mounting grooves (71), each mounting groove is provided with an air cushion (8), each air cushion comprises an air cushion body (81), an upper cover (82) and an air pipe connector (83), the air cushion body is a plastic part, the upper cover is a metal part, the upper cover and the air cushion body are integrally coated, the upper cover is provided with a second threaded hole (821), and the air cushions are mounted in the mounting grooves of the base through bolts (84);

one end of the air pipe joint penetrates through the upper cover to be communicated with the air cushion body, and the other end of the air pipe joint is connected with the air pump through an air pipe.

2. The cushioned knob folding treadmill of claim 1, wherein: the first clamping part is a circle of concave parts and convex parts which are arranged at intervals, the second clamping part is also a circle of concave parts and convex parts which are arranged at intervals, the concave parts of the first clamping part can be clamped into the convex parts of the second clamping part, and the convex parts of the first clamping part can be clamped into the concave parts of the second clamping part.

3. The cushioned knob folding treadmill of claim 1, wherein: one side of rotation axis is equipped with round boss (443), the installation of one side of boss the knob, just the opposite side of boss with form round recess (444) between the axle sleeve, the protruding (423) of round of the internal face of the mounting hole of connecting seat can block in the recess carries out spacingly.

4. The cushioned knob folding treadmill of claim 1, wherein: the rotating shaft and the shaft sleeve are provided with radially extending mounting holes (445), and the fixed section of the rotating shaft and the shaft sleeve are fixedly connected by screwing bolts or screws into the mounting holes.

5. The cushioned knob folding treadmill of claim 1, wherein: the mounting block is provided with two first limiting strips (413) used for limiting the rotation angle of the connecting seat along the axial direction of a first threaded hole of the mounting block, the two first limiting strips are parallel to each other, the connecting seat is provided with second limiting strips (424) matched with the first limiting strips, and the connecting seat is limited to rotate within the range between the two first limiting strips through the matching of the first limiting strips and the second limiting strips.

6. The cushioned knob folding treadmill of claim 1, wherein: the included angle (alpha) between the two first limiting strips is 145-155 degrees.

7. The cushioned knob folding treadmill of claim 1, wherein: the lower surface of the air cushion body is provided with a plurality of anti-skid lines (811) for increasing friction.

8. The cushioned knob folding treadmill of claim 1, wherein: the lower surface of the air cushion body is in contact with the ground, and the lower surface of the air cushion body is an arc-shaped surface.

9. The cushioned knob folding treadmill of claim 1, wherein: and a pressure sensor for testing the air pressure in the air cushion is connected to each air cushion and is connected with the controller of the treadmill.

10. The cushioned knob folding treadmill of claim 1, wherein: the buffer sheet is an EVA sheet, and the EVA sheet is bonded on the upper surface of the first running board mounting seat.

Technical Field

The invention belongs to the technical field of treadmill production, and particularly relates to a buffer type knob folding treadmill.

Background

Along with the continuous improvement of living standard of people, the rhythm of life is also faster and faster, and people have less time to take part in outdoor exercise, so more and more people have selected indoor motion body-building, and the treadmill is used as the main equipment of indoor motion body-building, and is widely popular in families and gymnasiums. Moreover, more and more people are purchasing home treadmills, which need to be light in weight with sufficient strength.

The existing treadmill frame is made of cast iron pipes and metal plates through stamping and welding, and the joints need to be welded, so that the treadmill frame is easy to deform, and has larger weight and larger volume under the condition of achieving the same strength; secondly, welding is adopted, so that the process is complex; thirdly, the cast iron is easy to rust, so that the working procedures such as baking finish and the like need to be added, and the complexity of the working procedures is further increased.

In addition, especially for the household running machine, the user wants to fold and store the running machine after the running machine is used up, so as to reduce the space, while the existing folding running machine needs to use a tool such as a wrench to disassemble the connecting part at the connecting part of the upright post and the frame when being folded, firstly, the tool is needed, so that the operation is troublesome; secondly, the disassembled connecting parts need to be kept separately and are easy to lose; thirdly, the disassembly and assembly process is laborious due to the requirement of large strength.

Disclosure of Invention

The invention mainly solves the technical problem of providing a buffer type knob folding treadmill which is light in weight, convenient to fold and store and has better shock absorption and buffer effects.

In order to solve the technical problems, the invention adopts a technical scheme that: the treadmill comprises a stand column, a rack, a running plate and a cover plate, wherein the running plate is installed on the rack, the cover plate is also installed on the rack, a base is arranged at the rack, and the base is installed on the rack;

the upright post and the running board are connected through the folding structure, and the upright post can be folded backwards on the running board to be stored by unscrewing the folding structure;

the folding structure comprises an installation block, a connecting seat, a shaft sleeve, a knob shaft and a knob, wherein one side of the installation block is installed on the edge of the running plate, and the other side of the installation block is provided with a first clamping part;

the inner sleeve is sleeved with the rotating shaft, the shaft sleeve and the connecting seat in sequence from the inner sleeve, the rotating shaft comprises a threaded section and a fixed section, the threaded section of the rotating shaft can be in threaded connection with the mounting block, and the fixed section of the rotating shaft can be in fixed connection with the shaft sleeve;

a second clamping part matched with the first clamping part is arranged on one side, close to the mounting block, of the connecting seat;

the upper part of the connecting seat is connected with the upright post;

whether the thread section of the rotating shaft is separated from the first threaded hole of the mounting block or not is driven by rotating the knob, so that whether the second clamping part of the connecting seat is separated from the first clamping part of the mounting block or not is realized, and whether the upright post rotates or not is further realized;

the rack comprises a front support, a left support and a right support, the front end of the left support is assembled and connected with the rear end of the front support, the front end of the right support is assembled and connected with the rear end of the front support, and the left support, the right support and the front support are respectively an aluminum alloy cast integral piece;

the front bracket is provided with two first motor mounting seats, the motor mounting seats are provided with grooves matched with a motor shaft, and the motors are mounted on the front bracket through screws and detachable fixing seats;

the front support and the rear support are provided with a first running board mounting seat for mounting a running board, the upper surface of the first running board mounting seat is a plane, the lower surface of the first running board mounting seat is provided with a plurality of reinforcing rib plates for increasing the strength of the first running board mounting seat, and the thickness of the first running board mounting seat is 10-14 mm;

a buffer sheet for buffering is arranged between the first running plate mounting seat and the running plate;

the front support and the rear support are also provided with a second running board mounting seat for mounting a running board, the upper surface of the second running board mounting seat is a plane, the lower surface of the second running board mounting seat is provided with a plurality of reinforcing rib plates for increasing the strength of the second running board mounting seat, and the thickness of the second running board mounting seat is 6-8 mm;

the running boards of different models are installed by installing the running boards on the first running board installation seat or the second running board installation seat;

the base is provided with a plurality of mounting grooves, each mounting groove is provided with an air cushion, each air cushion comprises an air cushion body, an upper cover and an air pipe joint, the air cushion body is a plastic part, the upper cover is a metal part, the upper cover and the air cushion body are integrally coated, the upper cover is provided with a second threaded hole, and the air cushions are mounted in the mounting grooves of the base through bolts;

one end of the air pipe joint penetrates through the upper cover to be communicated with the air cushion body, and the other end of the air pipe joint is connected with the air pump through an air pipe.

The first engaging portion is a circle of concave portions and convex portions arranged at intervals, the second engaging portion is a circle of concave portions and convex portions arranged at intervals, the concave portions of the first engaging portion can be engaged with the convex portions of the second engaging portion, and the convex portions of the first engaging portion can be engaged with the concave portions of the second engaging portion.

Further, one side of rotation axis is equipped with the round boss, the installation of one side of boss the knob, just the opposite side of boss with form the round recess between the axle sleeve, the round arch of the internal face of the mounting hole of connecting seat can be blocked in the recess carries on spacingly.

Furthermore, the rotating shaft and the shaft sleeve are provided with mounting holes extending in the radial direction, and the fixed section of the rotating shaft is fixedly connected with the shaft sleeve by screwing bolts or screws into the mounting holes.

Furthermore, the mounting block is provided with two first limiting strips used for limiting the rotation angle of the connecting seat along the axial direction of a first threaded hole of the mounting block, the two first limiting strips are parallel to each other, the connecting seat is provided with a second limiting strip matched with the first limiting strip, and the rotation of the connecting seat in the range between the two first limiting strips is limited through the matching of the first limiting strip and the second limiting strip.

Furthermore, the included angle between the two first limiting strips is 145-155 degrees.

Furthermore, the lower surface of the air cushion body is provided with a plurality of anti-skid lines for increasing friction.

Furthermore, the lower surface of the air cushion body is in contact with the ground, and the lower surface of the air cushion body is an arc-shaped surface.

Furthermore, a pressure sensor for testing the air pressure in the air cushions is connected to each air cushion, and the pressure sensor is connected with the controller of the treadmill.

Furthermore, the buffer sheet is an EVA sheet, and the EVA sheet is bonded on the upper surface of the first running board mounting seat.

The invention has the beneficial effects that:

the treadmill of the invention is light, easy to fold and take in, and have better shock attenuation buffer effect, it is as follows specifically:

firstly, the folding structure comprises an installation block, a connecting seat, a shaft sleeve, a knob shaft and a knob, wherein one side of the installation block is installed on the edge of a running plate, and the other side of the installation block is provided with a first clamping part; the inner part of the mounting block is provided with a first threaded hole, the connecting seat is provided with a mounting through hole, the rotating shaft, the shaft sleeve and the connecting seat are sequentially sleeved outside the inner sleeve, the rotating shaft comprises a threaded section and a fixed section, the threaded section of the rotating shaft can be in threaded connection with the mounting block, and the fixed section of the rotating shaft can be fixedly connected with the shaft sleeve; a second clamping part matched with the first clamping part is arranged on one side of the connecting seat close to the mounting block; whether the thread section of the rotating shaft is separated from the first threaded hole of the mounting block or not is driven by rotating the knob, so that whether the second clamping part of the connecting seat is separated from the first clamping part of the mounting block or not is realized, and whether the upright post rotates or not is further realized; therefore, the folding and accommodating of the treadmill can be realized without tools through the design of the knob type folding structure, the occupied space is reduced, and the dismounting and mounting process is convenient and quick and is easy to realize;

secondly, the rack comprises a front support, a left support and a right support, the front end of the left support is assembled and connected with the rear end of the front support, the front end of the right support is assembled and connected with the rear end of the front support, and the left support, the right support and the front support are respectively an aluminum alloy casting integrated piece, so that the rack does not need a complicated iron casting process, the cast aluminum alloy can be directly assembled without deformation, the weight is relatively light under the condition of achieving the same strength, and the assembly and the transportation are relatively easy; the anti-rust paint is not oxidized and rusted, an additional anti-rust procedure such as baking finish is not needed, welding of various parts on a rack is not needed, the process flow is simplified, and the anti-rust paint is more suitable for household use;

thirdly, the base of the running machine is provided with a plurality of mounting grooves, each mounting groove is provided with an air cushion, each air cushion comprises an air cushion body, an upper cover and an air pipe connector, the upper cover and the air cushion body are integrally wrapped and molded, the upper cover is provided with a second threaded hole, and the air cushions are mounted in the mounting grooves of the base through bolts; one end of the air pipe joint penetrates through the upper cover to be communicated with the air cushion body, and the other end of the air pipe joint is connected with the air pump through the air pipe.

Drawings

FIG. 1 is one of the appearance views of the present invention (from an angle);

FIG. 2 is an external view of the present invention with running boards and the like installed;

FIG. 3 is an exploded view of the present invention showing the installation of running boards and the like;

FIG. 4 is one of the schematic structural views of the present invention (from an angle);

FIG. 5 is a schematic view of an exploded structure of the present invention;

FIG. 6 is a second schematic structural view (from another perspective) of the present invention;

FIG. 7 is an external view of the running board of the present invention;

FIG. 8 is an external view of the present invention with running boards and the like installed;

FIG. 9 is an exploded view of the present invention (the two running boards are shown only to show that the machine frame can be used to install two running boards of different models, not to show that two running boards are installed at the same time);

FIG. 10 is one of the structural schematics of the housing of the present invention (from an angle);

FIG. 11 is an exploded view of the housing of the present invention;

FIG. 12 is a second schematic view of the frame of the present invention (from another perspective);

FIG. 13 is a second external view (from another perspective) of the treadmill of the present invention;

FIG. 14 is a schematic view of the construction of the cushion of the present invention;

figure 15 is a front view of the cushion of the present invention

The parts in the drawings are numbered as follows:

the structure comprises a vertical column 1, a frame 2, a front bracket 21, a first motor mounting seat 211, a groove 2111, a bottom plate 212, a left bracket 22, a first running board mounting seat 221, a second running board mounting seat 222, a reinforcing rib plate 2221, a right bracket 23, a fixed seat 24 and a buffer sheet 25;

a running board 3;

the folding structure 4, the mounting block 41, the first clamping part 411, the first threaded hole 412, the first limit strip 413, the connecting seat 42, the mounting through hole 421, the second clamping part 422, the protrusion 423, the second limit strip 424, the shaft sleeve 43, the knob shaft 44, the threaded section 441, the fixing section 442, the boss 443, the groove 444, the mounting hole 445, the knob 45 and the included angle α between the two first limit strips;

a cover plate 5;

a base 7, a mounting groove 71;

the air cushion 8, the air cushion body 81, the anti-skid veins 811, the upper cover 82, the second threaded hole 821, the air pipe joint 83 and the bolt 84.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Example (b): a buffer type knob folding treadmill is shown in figures 1 to 6 and comprises a stand column 1, a frame 2, a running board 3 and a cover board 5, wherein the running board is installed on the frame, the cover board is also installed on the frame, a base 7 is arranged at the frame and is installed on the frame;

the upright post and the running board are connected through the folding structure 4, and the upright post can be folded backwards on the running board to be stored by unscrewing the folding structure;

the folding structure comprises an installation block 41, a connecting seat 42, a shaft sleeve 43, a knob shaft 44 and a knob 45, wherein one side of the installation block is installed on the edge of the running board, and the other side of the installation block is provided with a first clamping part 411;

a first threaded hole 412 is formed in the mounting block, a mounting through hole 421 is formed in the connecting seat, the rotating shaft, the shaft sleeve and the connecting seat are sequentially sleeved outside the inner sleeve, the rotating shaft comprises a threaded section 441 and a fixed section 442, the threaded section of the rotating shaft can be in threaded connection with the mounting block, and the fixed section of the rotating shaft can be fixedly connected with the shaft sleeve;

a second clamping part 422 matched with the first clamping part is arranged on one side of the connecting seat close to the mounting block;

the upper part of the connecting seat is connected with the upright post;

whether the thread section of the rotating shaft is separated from the first threaded hole of the mounting block or not is driven by rotating the knob, so that whether the second clamping part of the connecting seat is separated from the first clamping part of the mounting block or not is realized, and whether the upright post rotates or not is further realized;

as shown in fig. 13 to 15, the base is provided with a plurality of mounting grooves 71, each mounting groove is provided with an air cushion 8, the air cushion comprises an air cushion body 81, an upper cover 82 and an air pipe connector 83, the air cushion body is a plastic part, the upper cover is a metal part, the upper cover and the air cushion body are integrally molded, the upper cover is provided with a second threaded hole 821, and the air cushion is mounted in the mounting groove of the base through a bolt 84;

one end of the air pipe joint penetrates through the upper cover to be communicated with the air cushion body, and the other end of the air pipe joint is connected with an air pump (not shown) through an air pipe (not shown).

The first clamping part is a circle of concave parts and convex parts which are arranged at intervals, the second clamping part is also a circle of concave parts and convex parts which are arranged at intervals, the concave parts of the first clamping part can be clamped into the convex parts of the second clamping part, and the convex parts of the first clamping part can be clamped into the concave parts of the second clamping part.

One side of rotation axis is equipped with round boss 443, the installation of one side of boss the knob, just the opposite side of boss with form round recess 444 between the axle sleeve, the round of arch 423 of the internal face of the mounting hole of connecting seat can block in the recess carries out spacingly.

The rotating shaft and the shaft sleeve are provided with mounting holes 445 extending in the radial direction, and the fixing section of the rotating shaft and the shaft sleeve are fixedly connected by screwing bolts or screws into the mounting holes.

The mounting block is provided with two first limiting strips 413 used for limiting the rotation angle of the connecting seat along the axial direction of a first threaded hole of the mounting block, the two first limiting strips are parallel to each other, the connecting seat is provided with second limiting strips 424 matched with the first limiting strips in the axial direction, and the connecting seat is limited to rotate in the range between the two first limiting strips through the matching of the first limiting strips and the second limiting strips.

As shown in fig. 6, the included angle α between the two first position-limiting bars is 145-155 °. In this example 150.

In this embodiment, the thread of the thread section of the rotating shaft is a three-thread.

The working principle of the folding structure is as follows: rotating the knob (for example, counterclockwise rotation in this embodiment) will drive the rotating shaft to withdraw from the first threaded hole of the mounting block until the second engaging portion of the connecting seat disengages from the first engaging portion of the mounting block, and then pulling the upright post with a hand to successively counterclockwise rotate until the second limiting strip of the connecting seat abuts against the first limiting strip on the right side of the mounting block (where the right side is shown in the position in fig. 6), so as to fold and store the treadmill; and all parts of the folding structure are still arranged on the running machine and cannot be lost;

when the treadmill is used, the upright post is pulled up until the second connecting strip of the connecting seat at the lower end of the upright post is tightly abutted against the first limiting strip at the left side of the mounting block (the left side of the position is shown as the position in figure 6), the knob is rotated towards the opposite direction, the threaded section of the rotating shaft is screwed into the first threaded hole of the mounting block until the second clamping part of the connecting seat is clamped and limited with the first clamping part of the mounting block, and the treadmill is mounted and used.

As shown in fig. 7 to 12, the lower surface of the air cushion body is provided with a plurality of anti-slip lines 811 for increasing friction.

The lower surface of the air cushion body is in contact with the ground, and the lower surface of the air cushion body is an arc-shaped surface.

A pressure sensor (not shown) for testing the air pressure in the air cushions is connected with each air cushion, and the pressure sensor is connected with the controller of the treadmill.

In this embodiment, there are 6 air cushions, and there are 3 on the both sides of base respectively.

Each air cushion is connected with a pressure sensor for testing the air pressure in the air cushion, and the pressure sensor is connected with a controller of the treadmill, so that the air pressure in the air cushion is monitored in real time by science and technology, and the amount of air in the air cushion is controlled according to different hardness of different users, thereby realizing the adjustment of different hardness of the air cushion;

the lower surface of the air cushion body is an arc surface, so that the adaptability of contact with the body surface is improved, and the stability of the treadmill cannot be influenced when the air cushion is used on slightly uneven ground;

the upper cover of the air cushion and the air cushion body are wrapped and molded into a whole, so that the buffering effect of the plastic air cushion body can be exerted, and the metal can be easily installed on the base of the treadmill by utilizing the rigidity and the light degree of the metal.

As shown in fig. 7 to 12, the frame includes a front bracket 21, a left bracket 22 and a right bracket 23, a front end of the left bracket is assembled with a rear end of the front bracket, a front end of the right bracket is assembled with a rear end of the front bracket, and the left bracket, the right bracket and the front bracket are respectively an aluminum alloy cast integral piece;

the front bracket is provided with two first motor mounting seats 211 which are provided with grooves 2111 matched with a motor shaft, and the motors are mounted on the front bracket through screws and a detachable fixed seat 24;

the front bracket and the rear bracket are provided with a first running board mounting seat 221 for mounting a running board, the upper surface of the first running board mounting seat is a plane, the lower surface of the first running board mounting seat is provided with a plurality of reinforcing ribs (not shown) for increasing the strength of the first running board mounting seat, and the thickness of the first running board mounting seat is 10-14mm (in the embodiment, 12 mm);

a buffer sheet 25 for buffering is arranged between the first running board mounting seat and the running board;

the running boards of different models are installed by installing the running boards on the first running board installation seat or the second running board installation seat;

in this embodiment, the buffer sheet is an EVA (ethylene vinyl acetate copolymer) sheet, and the EVA sheet is bonded to the upper surface of the second running board mounting seat;

the front bracket and the rear bracket have a second running board mounting base 222 for mounting a running board, the upper surface of the second running board mounting base is a plane, the lower surface of the second running board mounting base has a plurality of reinforcing ribs 2221 for increasing the strength of the second running board mounting base, and the thickness of the second running board mounting base is 6-8mm (in this embodiment, 7 mm).

The front bracket is provided with two first motor mounting seats, the motor mounting seats are provided with grooves matched with a motor shaft, the motor is mounted on the front bracket through screws and detachable fixing seats, one part of the motor mounting seats is directly integrated on the rack, and only the other part of the motor mounting seats is assembled with the fixing seats matched with the motor mounting seats, so that the operation is easy;

a buffer sheet for buffering is arranged between the first running plate mounting seat and the running plate, so that the final damping and buffering effect between the running plate and the rack can be increased, and the comfort level in the running process is improved;

the lower surfaces of the second running board mounting seat and the first running board mounting seat can be provided with a plurality of reinforcing rib plates for increasing the strength of the second running board mounting seat and the first running board mounting seat, so that the strength of the mounting seats can be ensured, the weight of the mounting seats can be reduced, and the requirement of light rack is met under the condition that the whole thickness of the mounting seats is not too thick;

can realize the installation of the race board of different models through installing the race board in first race board mount pad or second race board mount pad, improve the commonality of same frame.

As shown in fig. 7 to 12, in the present embodiment, 2 to 3 reinforcing ribs are provided on each of the first and second deck mounting seats.

The front end of the left support is connected with the rear end of the front support through a bolt, and the front end of the right support is connected with the rear end of the front support through a bolt.

The front bracket has a base plate 212 for mounting a circuit board.

The length of the rack is 140 mm and 150mm, and the width of the rack is 50-60 mm.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.