Frame tube mounting structure

Abstract

The utility model discloses a frame tube mounting structure which comprises a main frame body, a mounting space for mounting an engine is arranged in the main frame body, a mounting opening for placing the engine into the mounting space is formed in the rear side of the main frame body, and guide plates for allowing the engine to slide into the mounting space are arranged on the two sides of the mounting opening. A limiting rod for preventing the engine from continuously sliding forwards is arranged on the front side of the installation space, vertically-protruding fixing lugs are arranged on the two sides of the installation space, the fixing lugs are used for fixing the engine and limiting the two sides of the engine, and an elastic limiting piece which shrinks downwards when pressed and rebounds when force pressure is lost is arranged between the two guide plates. Compared with the prior art, the engine mounting structure has the advantages that the engine can quickly slide into a mounting space and is limited in the front direction, the rear direction, the left direction and the right direction, complex adjusting or fastening operation is not needed, mounting is more convenient, the engine cannot move during mounting, and mounting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motorcycle technical field especially relates to motorcycle's frame pipe mounting structure. BACKGROUND

[0002] Motorcycle is loved by the public because of its lightness and flexibility, rapid travel, and is usually used for patrol, passenger and freight transportation, sports equipment, etc. It is driven by fuel power device or electric power device and controlled by handlebar to turn front wheel. The motorcycle frame is an important part of motorcycle, which is usually formed by welding multiple steel pipes and mounting lugs.

[0003] For example, the patent publication No. CN 205 1 1 1 1 1 1 U discloses a motorcycle frame, which comprises a frame body, the frame body is composed of a steering cylinder, a cross beam fixedly connected with the top of the side wall of the steering cylinder, an inclined beam fixedly connected with the bottom of the side wall of the steering cylinder, two first curved rods fixedly connected with the bottom of the side wall of the inclined beam, two second curved rods fixedly connected with the bottom end of the side wall of the cross beam, and a bottom rod located between the two second curved rods. The bottom end of the two second curved rods is fixed with the bottom rod. The cross beam, the inclined beam, the first curved rod, the second curved rod and the bottom rod are mutually welded to form a space for placing the engine. The first curved rod is provided with a fixing lug for fixing the engine.

[0004] In the above-mentioned scheme, the engine needs to be placed in the space for installing the engine and moved to align the connecting part of the engine with the fixing lug before being fixed. In the fixing process, the engine is prone to displacement, which is inconvenient to install. UTILITY MODEL CONTENTS

[0005] The utility model discloses a motorcycle frame pipe mounting structure to solve the above-mentioned problems.

[0006] The utility model discloses a technical scheme that solves the above technical problem is adopted: including main frame body, the installation space of having the installation engine in main frame body, the rear side of main frame body has the installation port of putting engine into to the installation space, and the both sides of installation port are equipped with the guide plate of sliding into the installation space for engine, the front side of installation space is equipped with the limiting rod of preventing engine to continue to slide forward, the both sides of installation space are equipped with the fixed lug of vertical protruding, and fixed lug is used for fixing engine and can limit the both sides of engine, and the elastic limiting piece of rebounding when losing force when pressing is equipped between two guide plates, when engine is down-sliding along the guide plate, engine presses elastic limiting piece and makes limiting piece to shrink down, when engine is completely entered the installation space, elastic limiting piece rebounds and resets and leans against the rear end of engine, and limiting rod abuts at the front end of engine, and engine is located between two fixed lug and leans against two fixed lug and limits the both sides thereof.

[0007] The further preferred scheme of the utility model is that: the main frame body includes the main pipe of vertical front inclination, the crossbeam of fixed installation on the upper side wall of main pipe, the inclined beam of fixed installation on the lower side wall of main pipe and downward inclination and two open upward elbow pipes, the front end of two elbow pipes is fixed on the both sides of inclined beam respectively, the rear end of two elbow pipes is fixed on the both sides of crossbeam respectively, the lower side of two elbow pipes has the straight pipe parallel with ground, and the support rod of supporting engine is fixed between two straight pipes, and the main pipe, crossbeam, inclined beam, two elbow pipes and support rod form the installation space.

[0008] The further preferred scheme of the utility model is that: the elbow pipe includes front elbow pipe and rear elbow pipe, the front elbow pipe is integrally formed by front connecting pipe, rear connecting pipe and the straight pipe, and the front connecting pipe and rear connecting pipe are all curved upward, and two front connecting pipes are fixed on the both sides of inclined beam respectively, the rear connecting pipe is fixedly connected with installation pipe, one end of two rear elbow pipes is fixed on the both ends of installation pipe respectively, and the other end is fixed on the both side walls of crossbeam, and the installation pipe and two rear elbow pipes form the installation port.

[0009] The further preferred scheme of the utility model is that: two straight pipes have the interval adapted to the width of engine.

[0010] The further preferred scheme of the utility model is that: the installation pipe is equipped with the panel of tilting to straight pipe, and the panel is used to guide engine to slide into the installation space.

[0011] The further preferred scheme of the utility model is that: the both ends of installation pipe extend to both sides, two rear connecting pipes are the arc surface of opening upward and extend to the outside from the one end of straight pipe and are fixed on the end of installation pipe respectively, and the intersection of rear connecting pipe and straight pipe and rear connecting pipe and installation pipe is the curved surface of smooth transition.

[0012] The further preferred scheme of the utility model is that the inner side of the two rear connecting pipes is equipped with reinforcing sleeves, the reinforcing sleeves have the same curvature as the rear connecting pipes, the outer side of the reinforcing sleeves has openings for the rear connecting pipes to extend into the interiors, the upper inner wall and the lower inner wall of the opening of the reinforcing sleeve are on the rear connecting pipe, and the side of the reinforcing sleeve close to the mounting pipe is welded on the mounting pipe.

[0013] The further preferred scheme of the utility model is that the two guide plates extend from the two sides of the reinforcing sleeves to the straight pipes and are welded on the reinforcing sleeves and the straight pipes through the bottoms, the two guide plates are arranged from the outside to the inside in an inclined manner, the inner walls of the two guide plates form guide inclined surfaces that incline to the interiors, and the height of the guide plate gradually decreases from the opening to the straight pipe.

[0014] The further preferred scheme of the utility model is that a connecting rod is arranged between the two reinforcing sleeves, the elastic limiting piece is fixed on the connecting rod, the elastic limiting piece comprises a fixing sleeve fixed on the connecting rod, a reset spring and a lifting column arranged in the fixing sleeve, one end of the lifting column is arranged in the fixing sleeve and can slide up and down on the inner wall of the fixing sleeve to press the reset spring, and the other end of the lifting column has a spherical limiting cap.

[0015] The further preferred scheme of the utility model is that the limiting rod is arranged between the two front connecting pipes and is welded on the two front connecting pipes at two ends, and the mounting hole for mounting the engine is arranged on the supporting rod and the limiting rod.

[0016] Compared with the prior art, the utility model has the advantages that the mounting hole is arranged on the rear side of the main frame body, the guide plates are arranged on the two sides of the mounting hole, the limiting rod is arranged on the front side of the mounting space, the vertical protruding fixing ears are arranged on the two sides of the mounting space, the elastic limiting piece that is pressed to be lowered and rebounded when the force is lost is arranged between the two guide plates, the engine can be quickly slid into the mounting space and is limited in four directions of front, rear, left and right through the cooperation of the mounting hole, the guide plates, the fixing ears and the elastic limiting piece, the engine is not displaced during installation, the installation efficiency is improved, and the engine is not displaced during installation. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described in detail below in combination with the drawings and the preferred embodiments, but the person skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be regarded as the limitation to the scope of the utility model, and in addition, unless specifically pointed out, the drawings only schematically show the composition or structure of the described objects and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a three-dimensional structure schematic view of the preferred embodiment of the utility model;

[0019] Figure 2 is a right view of the preferred embodiment of the present application;

[0020] Figure 3 is a right view of the preferred embodiment of the present application Figure 2 is a sectional view at A-A;

[0021] Figure 4 is a right view of the preferred embodiment of the present application Figure 3 is an enlarged view of B;

[0022] Figure 5 is a perspective structural schematic view of the preferred embodiment of the present application after the reinforcing sleeve and the connecting rod are disassembled;

[0023] Figure 6 is a perspective structural schematic view of the preferred embodiment of the present application after the reinforcing sleeve and the connecting rod are disassembled;

[0024] Figure 7 is a perspective structural schematic view of the preferred embodiment of the present application after the reinforcing sleeve and the connecting rod are disassembled.

[0025] In the figure: 1, main frame body; 11, main pipe; 12, cross beam; 13, inclined beam; 14, elbow pipe; 141, front elbow pipe; 1411, front connecting pipe; 1412, straight pipe; 1413, rear connecting pipe; 142, rear elbow pipe; 15, supporting rod; 2, installation space; 3, installation port; 4, guide plate; 5, limiting rod; 6, fixed lug; 7, elastic limiting piece; 71, fixed sleeve; 72, reset spring; 73, lifting column; 74, limiting cap; 8, installation pipe; 81, panel; 9, reinforcing sleeve; 10, connecting rod. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, and those skilled in the art will appreciate that these descriptions are merely descriptive, exemplary, and should not be interpreted as limiting the scope of protection of the present application.

[0027] It should be noted that: similar reference numerals represent similar items in the following drawings, so once an item is defined in one drawing, it can not be further defined and explained in the subsequent drawings.

[0028] The present embodiment mainly describes the frame pipe installation structure, which is as follows:

[0029] As Figures 1 to 7The frame pipe mounting structure shown, the frame pipe mounting structure, including main frame body 1, main frame body 1 mainly play the role of support, install motorcycle parts, main frame body 1 inside has for installing engine installation space 2, main frame body 1 rear side has the installation port 3 of putting engine into installation space 2, the two sides of installation port 3 have guide plate 4, guide plate 4 has the guiding effect, engine can along guide plate 4 slide into installation space 2, compared with the traditional engine needs to be manually lifted into, the installation of guide inclined plane is more labor-saving;The front side of installation space 2 is provided with the limiting rod 5 of preventing engine from continuing to slide forward, because engine slides along guide inclined plane into installation space 2, engine slides into installation space 2, because of inertia effect continues to tilt forward, limiting rod 5 limits engine to continue to go forward at this time, the both sides of installation space 2 are welded with vertical protruding fixed lug 6, fixed lug 6 is used for fixing engine and can be engine;Two sides are limited to prevent engine from shifting left or right during installation, the both guide plates 4 are provided with elastic limiting piece 7, when elastic limiting piece 7 is subjected to downward pressure, it is shrunk, when losing pressing force, it will rebound upward under the action of its elastic force, when installing engine, engine is placed at installation port 3, and the pushing force of engine to installation space 2 is applied, at this time, engine slides down along guide inclined plane under the action of pushing force, engine is extruded elastic limiting piece 7 during sliding, elastic limiting piece 7 is shrunk under the pressure of engine, when engine slides to its complete entry into installation space 2, elastic limiting piece 7 rebounds and resets against the rear end of engine under the action of its elastic force, at this time, limiting rod 5 is abutted on the front end of engine, engine is located between two fixed lug 6 and is abutted on two fixed lug 6, two fixed lug 6 limit left and right sides of engine, engine is limited in four directions of front, rear, left and right, and the position of engine does not need to be manually adjusted during installation, and engine does not move during installation, it is more convenient to install, and installation efficiency is improved.

[0030] Specifically, the main frame body 1 is composed of a main pipe 11, a cross beam 12, an inclined beam 13 and two bent pipes 14, which are fixed together by welding or bolt connection to form a solid support frame. The main pipe 11 is the front end part of the main frame body 1, used for installing the steering system of the front wheel. The main pipe 11 is vertically and forwardly inclined. The cross beam 12 is fixedly installed on the upper side wall of the main pipe 11. The inclined beam 13 is fixedly installed on the lower side wall of the main pipe 11, and the other end of the inclined beam 13 is downwardly inclined. The inclined beam 13 and the cross beam 12 are located on the same side of the main pipe 11. The two bent pipes 14 have openings upward. The front ends of the two bent pipes 14 are welded on the two sides of the inclined beam 13, respectively. The rear ends of the two bent pipes 14 are welded on the two sides of the cross beam 12, respectively. The lower side of the two bent pipes 14 has a straight pipe 1412 parallel to the ground. The straight pipe 1412 and the support rod 15 fixed between the two straight pipes 1412 are used to support the engine, thereby improving the stability of the engine. The main pipe 11, the cross beam 12, the two bent pipes 14 and the support rod 15 form an installation space 2.

[0031] As shown in Figure 1 , Figure 5 and Figure 6 , the bent pipe 14 includes a front curved pipe 141 and a rear curved pipe 142. The front curved pipe 141 is integrally formed by a front connecting pipe 1411, a rear connecting pipe 1413 and the straight pipe 1412. The front connecting pipe 1411 and the rear connecting pipe 1413 are both upwardly curved. The two front connecting pipes 1411 are fixed on the two sides of the inclined beam 13, respectively. The rear connecting pipe 1413 is fixedly connected with the mounting pipe 8. The two rear curved pipes 142 are fixed on the two ends of the mounting pipe 8 and the two side walls of the cross beam 12, respectively. The mounting pipe 8 and the two rear curved pipes 142 form a mounting opening 3.

[0032] Specifically, in order to evenly distribute the weight of the engine to the support rod 15 and the main frame body, avoid metal fatigue or deformation caused by local stress concentration, and prolong the service life of the frame, the distance between the two straight pipes 1412 is designed to be the length suitable for the width of the engine, thereby improving the stability of the engine.

[0033] As shown in Figure 1 , Figure 2 and Figure 5 , in order to accurately slide into the preset position, a panel 81 inclined to the straight pipe 1412 is welded on the mounting pipe 8. The inclined panel 81 is used to guide the engine to slide into the installation space 2 along the preset direction, thereby reducing the installation resistance.

[0034] Specifically, both ends of the mounting pipe 8 extend to both sides, and the two rear connecting pipes 1413 are open upward and extend outward from one end of the straight pipe 1412 and are fixed to the ends of the mounting pipe 8. This design significantly increases the transverse width of the mounting opening 3, expands the mounting opening 3, facilitates the passage of the engine, improves the installation convenience, avoids the engine from being stuck or repeatedly adjusted due to narrow space, and the intersection of the rear connecting pipe 1413 and the straight pipe 1412 and the intersection of the rear connecting pipe 1413 and the mounting pipe 8 are both curved surfaces with smooth transitions. The rear connecting pipe 1413 is designed as an arc surface with an opening upward, and is connected to the straight pipe 1412 and the mounting pipe 8 through a curved surface with a smooth transition, avoiding wear caused by the contact between the straight angle or sharp corner and the engine. At the same time, the arc design and the extension structure form a stable geometric frame, enhancing the anti-deformation ability of the frame under the vibration of the engine or the impact of driving.

[0035] Specifically, the inner side of the two rear connecting pipes 1413 is provided with a reinforcing sleeve 9, as shown in Figure 7 , the reinforcing sleeve 9 has the same curvature as the rear connecting pipe 1413, and the outer side of the reinforcing sleeve 9 has an opening for the rear connecting pipe 1413 to extend into the interior, the upper and lower inner walls of the opening of the reinforcing sleeve 9 are on the rear connecting pipe 1413, and the side of the reinforcing sleeve 9 close to the mounting pipe 8 is welded to the mounting pipe 8. The reinforcing sleeve 9 is designed to have the same curvature as the rear connecting pipe 1413, and the rear connecting pipe 1413 is wrapped inside through the opening, forming a double-layer structure, which significantly enhances the anti-deformation ability of the rear connecting pipe 1413 under the vibration of the engine or the impact of driving, and prolongs the service life of the rear connecting pipe 1413. At the same time, the reinforcing sleeve 9 is rigidly connected to the rear connecting pipe 1413 and the mounting pipe 8, forming a stable triangular support structure, further improving the stability of the mounting space 2.

[0036] As shown in Figure 1 , Figure 2 , and Figure 3 , the two guide plates 4 extend from the two reinforcing sleeves 9 to the straight pipe 1412 and are welded to the reinforcing sleeves 9 and the straight pipe 1412 at the bottom, and the two guide plates 4 are inclined from outside to inside, so that the inner walls of the two guide plates 4 form an inclined guide slope inward, and the height of the guide plate 4 gradually decreases from the opening to the straight pipe 1412. When the engine enters from the mounting opening 3, the inclined angle of the guide slope guides the engine to slide into the mounting space 2 along the preset path without manual adjustment of the direction. At the same time, the inclined slope and the height gradient design of the guide plate 4 can disperse the contact pressure when the engine slides in, reducing the frictional resistance between the engine and the guide plate 4. When installing, the worker only needs to push the engine along the guide plate 4 without additional force or adjustment, significantly simplifying the installation process and shortening the installation time.

[0037] Specifically, a connecting rod 10 is welded between the two reinforcing sleeves 9, and the elastic limiting piece 7 is fixed to the connecting rod 10, as shown inFigure 4 As shown, the elastic limiting part 7 comprises a fixing sleeve 71 welded on the connecting rod 10, a reset spring 72 located in the fixing sleeve 71 and a lifting column 73, one end of which is located in the fixing sleeve 71 and can slide up and down along the inner wall of the fixing sleeve 71 to press the reset spring 72, and the other end has a spherical limiting cap 74. When the engine slides into the mounting space 2, the lower end of the engine contacts the spherical limiting cap 74 of the elastic limiting part 7, pushes the lifting column 73 to move downward along the inner wall of the fixing sleeve 71 and compresses the reset spring 72; after the engine completely enters the mounting space 2, the reset spring 72 rebounds, the lifting column 73 moves upward, and the limiting cap 74 abuts against the rear end of the engine, at this time, the front end of the engine abuts against the limiting rod 5 and is located between the two fixing ears 6, so that the engine is limited in four directions of front, rear, left and right, the engine position does not need to be adjusted during installation, and the engine displacement is not worried, and the installation efficiency is improved.

[0038] Specifically, in order to facilitate the installation of the lifting column 73, the upper end of the fixing sleeve 71 can be designed to be threadedly connected with a sleeve cap, the sleeve cap is provided with a perforation for the pipe of the lifting column 73 to pass through, and the lower end of the lifting column 73 is detachably connected with a limiting ring to prevent the lifting column 73 from falling off and limit the sliding range of the lifting column 73.

[0039] In the description of the present application, it should be pointed out that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] The frame tube mounting structure provided by the present application is described in detail above, and the principles and implementation modes of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the present application and the core idea, and it should be pointed out that, for ordinary skilled persons in the technical field, without departing from the principles of the present application, the present application can be improved and modified in many ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A frame tube mounting structure, including a main frame body, characterized in that: The main frame has an installation space for mounting the engine. The rear side of the main frame has an installation port for placing the engine into the installation space. Guide plates are provided on both sides of the installation port for the engine to slide into the installation space. A limiting rod is provided on the front side of the installation space to prevent the engine from sliding forward. Vertically protruding fixing ears are provided on both sides of the installation space. The fixing ears are used to fix the engine and limit the movement of the engine on both sides. There is an elastic limiting member between the two guide plates that retracts when pressed and rebounds when the pressure is released. When the engine slides down along the guide plate, the engine presses down on the elastic limiting member to retract the limiting member. When the engine is fully inserted into the installation space, the elastic limiting member rebounds and rests against the rear end of the engine. The limiting rod abuts against the front end of the engine. The engine is located between the two fixing ears and is in contact with the two fixing ears to limit the movement of the engine on both sides.

2. The frame tube mounting structure according to claim 1, characterized in that: The main frame includes a vertically inclined main pipe, a crossbeam fixedly installed on the upper side wall of the main pipe, a downwardly inclined beam fixedly installed on the lower side wall of the main pipe, and two upwardly opening curved pipes. The front ends of the two curved pipes are respectively fixed to both sides of the inclined beam, and the rear ends of the two curved pipes are respectively fixed to both sides of the crossbeam. The lower side of the two curved pipes has a straight pipe parallel to the ground, and a support rod for supporting the engine is fixed between the two straight pipes. The main pipe, crossbeam, inclined beam, two curved pipes, and support rod together form the installation space.

3. The frame tube mounting structure according to claim 2, characterized in that: The bend includes a front bend and a rear bend. The front bend is integrally formed from a front connecting pipe, a rear connecting pipe, and the straight pipe. Both the front and rear connecting pipes are bent upwards, and the two front connecting pipes are fixed to both sides of the inclined beam. An installation pipe is fixedly connected to the rear connecting pipe. One end of each of the two rear bends is fixed to both ends of the installation pipe, and the other end is fixed to the two side walls of the crossbeam. The installation pipe and the two rear bends together form the installation opening.

4. The frame tube mounting structure according to claim 3, characterized in that: The two straight pipes have a spacing adapted to the width of the engine.

5. The frame tube mounting structure according to claim 3, characterized in that: The mounting tube is equipped with a panel that is inclined towards the straight tube, and the panel is used to guide the engine to slide into the mounting space.

6. The frame tube mounting structure according to claim 3, characterized in that: Both ends of the mounting tube extend to the sides. The two rear connecting tubes are arc surfaces with openings facing upwards and extend outwards from the end away from the straight tube and are respectively fixed to the end of the mounting tube. The intersections of the rear connecting tubes with the straight tube and the rear connecting tubes with the mounting tube are all smooth transition curved surfaces.

7. The frame tube mounting structure according to claim 6, characterized in that: The inner side of the two rear connecting pipes is provided with a reinforcing sleeve. The reinforcing sleeve has a curved surface with the same curvature as the rear connecting pipe, and the outer side of the reinforcing sleeve has an opening that allows the rear connecting pipe to extend into the interior. The upper inner wall and lower inner wall of the opening of the reinforcing sleeve are on the rear connecting pipe, and the side of the reinforcing sleeve closest to the mounting pipe is welded to the mounting pipe.

8. The frame tube mounting structure according to claim 7, characterized in that: Both guide plates extend from the reinforcing sleeves on both sides to the straight pipe and are welded to the reinforcing sleeves and the straight pipe at the bottom. Both guide plates are inclined from the outside to the inside, so that the inner walls of the two guide plates form an inwardly inclined guide slope. The height of the guide plates gradually decreases from the opening towards the straight pipe.

9. The frame tube mounting structure according to claim 7, characterized in that: A connecting rod is provided between the two reinforcing sleeves. The elastic limiting member is fixed on the connecting rod. The elastic limiting member includes a fixed sleeve fixed on the connecting rod, a return spring located inside the fixed sleeve, and a lifting column. One end of the lifting column is located inside the fixed sleeve and can slide up and down along the inner wall of the fixed sleeve to compress the return spring. The other end has a spherical limiting cap.

10. The frame tube mounting structure according to claim 3, characterized in that: The limiting rod is located between the two front connecting pipes, and its two ends are welded to the two front connecting pipes respectively. Both the support rod and the limiting rod are provided with mounting holes for mounting the engine.

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