CN215922444U - Gravity die-casting forming structure for integrated lower pipe and motor seat of electric bicycle - Google Patents
Gravity die-casting forming structure for integrated lower pipe and motor seat of electric bicycle Download PDFInfo
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- CN215922444U CN215922444U CN202121761828.0U CN202121761828U CN215922444U CN 215922444 U CN215922444 U CN 215922444U CN 202121761828 U CN202121761828 U CN 202121761828U CN 215922444 U CN215922444 U CN 215922444U
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Abstract
The utility model relates to the technical field of electric bicycles, in particular to a gravity die-casting molding structure of an integrated lower pipe and a motor seat of an electric bicycle, which comprises an integrated casting of the lower pipe and the motor seat, wherein a motor is installed at one end, close to the motor seat, of the integrated casting of the lower pipe and the motor seat, a mounting groove is formed in the middle of the integrated casting of the lower pipe and the motor seat, a battery assembly is arranged in the mounting groove, the battery assembly comprises a battery, a battery bracket fixing plate and a battery protection cover plate, the battery bracket fixing plate is detachably fixed on the groove wall of the mounting groove through a bracket connector, the battery is fixedly connected with the battery bracket fixing plate, and the battery protection cover plate is arranged on the outer side of the battery and is fixed at an opening of the mounting groove through a buckle. The utility model solves the problem of the traditional combined welding of the lower tube and the motor seat, simplifies the production process, reduces the production cost, improves the production efficiency and increases the overall strength.
Description
Technical Field
The utility model relates to the technical field of electric bicycles, in particular to a gravity die-casting forming structure of an integrated lower pipe and a motor seat of an electric bicycle.
Background
An electric bicycle is a mechatronic personal transportation tool which takes a storage battery as auxiliary energy and is provided with an electric motor, a controller, the storage battery, a rotating handle brake handle and other operation parts and a display instrument system on the basis of a common bicycle, and most electric bicycles adopt a hub type motor to directly drive a front wheel or a rear wheel to rotate.
An integral component of a lower tube and a motor base of an electric bicycle, which is disclosed in the Chinese utility model with the application number of CN201821640339.8, comprises the lower tube and the motor base; one end of the lower pipe is provided with a first connecting end; one end of the motor base is provided with a second connecting end; the first connecting end and the second connecting end are connected in a welding mode after being connected in an inserting mode, and the outer surface of a lower pipe at the connecting position in the inserting mode is flush with the outer surface of the motor base. Although the device has the advantages that the connection part of the lower pipe and the motor seat of the frame is smooth and attractive, the welding position needs to be reserved in the welding mode of the motor seat and the lower pipe in the device, so that the product is too long, the too long product has a restrictive requirement on the hand length of a user, the rider cannot use the device when the hand length of the rider cannot meet the restrictive requirement, or the use experience is extremely poor, the combined welding process is multiple, the production efficiency is low, and the quality is not easy to control; and current electric bicycle lower tube does not set up suitable battery installation position, leads to the battery installation inconvenient.
In view of this, we propose a gravity die-casting structure for an integrated lower tube and motor seat of an electric bicycle.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a gravity die-casting structure for an integrated lower tube and a motor seat of an electric bicycle, so as to solve the problems of the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: electric bicycle integral type low tube and motor seat gravity die-casting shaping structure, including low tube and the integrative foundry goods of motor seat, the motor is installed near the one end of motor seat to low tube and the integrative foundry goods of motor seat, the middle part of low tube and the integrative foundry goods of motor seat is equipped with the mounting groove, be equipped with battery pack in the mounting groove, battery pack includes battery, battery support fixed plate and battery protection apron, and battery support fixed plate passes through the detachable fixing of leg joint head on the cell wall of mounting groove, and battery fixed connection battery support fixed plate, battery protection apron set up in the outside of battery and fix the opening part at the mounting groove through the buckle.
Preferably, the bracket connectors are provided with two groups, and the two groups of bracket connectors are fixedly connected at two ends of the battery bracket fixing plate.
Preferably, the inside cavity of having seted up of coupling head, be equipped with the V-arrangement billet in the cavity, the fixed laminating in the reference column of turning inner wall of V-arrangement billet, the fixed setting of reference column is in the cavity, the equal fixedly connected with fixture block of two expansion ends of V-arrangement billet.
Preferably, the one end setting that the V-arrangement billet was kept away from to the fixture block is circular-arc, and two sets of slots that hold the leg joint head are seted up to the symmetry on the mounting groove inner wall, and the locating hole that holds the fixture block is all seted up to the both sides of slot.
Preferably, the one end that the leg joint head is close to the battery holder fixed plate has seted up the slot, and slidable mounting has T shape ejector pad in the slot, and T shape ejector pad is close to the one end fixed connection spring of V-arrangement billet, and the both ends of spring all are equipped with a set of depression bar, depression bar one end fixed connection ejector pad, and the depression bar other end stretches into the cavity and contradicts at the bent angle outer wall of V-arrangement billet.
Preferably, the lower pipe and the motor seat in the lower pipe and motor seat integrated casting are integrally formed through gravity die-casting, and the lower pipe and the motor seat are cast into an integrated structure through a gravity die-casting mode at one time.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the lower pipe, the motor seat is integrally formed by gravity die casting, the lower pipe and the motor seat are cast into an integrated structure in one step in a gravity die casting mode, the function of installing a battery and a motor is achieved by a CNC technician, the step of combined welding of the lower pipe and the motor seat is omitted, the cost of manpower and material resources is reduced, the production efficiency and the quality of accessories production engineering and frame factories can be well improved, the service life of a frame is prolonged, the appearance design of the frame can be more diversified by the integrated gravity die casting process, the problem of installation of the battery and the motor can be solved in one step, and an electric wire can be hidden in the lower pipe, so that the motor, the electric wire and the battery are better protected.
2. The utility model solves the problem that the product length is limited in functionality; the length of the bicycle frame is improved, so that the bicycle frame is more suitable for the function of the length of a rider, and the integral strength of the bicycle frame structure is increased;
3. when the bracket connector is just inserted into the slot, the elastic force of the V-shaped steel bar acts on the clamping blocks at the two ends, so that the clamping blocks are quickly inserted into the positioning holes, the bracket connector is limited and fixed conveniently and quickly, and the assembly steps of the frame are simplified;
drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a cross-sectional view of a structure of the present invention;
fig. 3 is an exploded view of the bracket connector in the structure of the present invention.
In the figure: the motor comprises a motor 1, a battery 2, a lower pipe and motor seat integrated casting 3, a battery support fixing plate 4, a battery protection cover plate 5, a support connector 6, a clamping block 7, a V-shaped steel bar 8, a positioning column 9, a pressing rod 10, a spring 11 and a pushing block 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: the gravity die-casting forming structure of the integrated lower pipe and the motor seat of the electric bicycle comprises an integrated lower pipe and motor seat casting 3, wherein the lower pipe and the motor seat in the integrated lower pipe and motor seat casting 3 are integrally formed by gravity die-casting, and the integrated structure is cast by the lower pipe and the motor seat in one step in a gravity die-casting mode; reach the function that can install battery and motor through the CNC technician again, save low tube and motor seat combination welded step, the cost reduction of manpower and materials, to accessory production engineering and frame mill, promotion production efficiency and quality that all can be fine, and increase the life of frame, and integral type gravity die-casting technology can let the appearance design of frame more manifold words, can once only solve the installation of battery and motor and can let the electric wire hide in the inside of low tube, make the motor, the electric wire, the battery obtains better protection.
As shown in fig. 1 and 2, motor 1 is installed to the one end that low tube and the integrative foundry goods 3 of motor seat are close to the motor seat, the middle part of low tube and the integrative foundry goods 3 of motor seat is equipped with the mounting groove, be equipped with battery pack in the mounting groove, battery pack includes battery 2, battery holder fixed plate 4 and battery protection apron 5, battery holder fixed plate 4 passes through the removable fixing on the cell wall of mounting groove of 6 of leg joint, battery 2 fixed connection battery holder fixed plate 4, battery protection apron 5 sets up in the outside of battery 2 and fixes the opening part at the mounting groove through the buckle.
As shown in fig. 2 and 3, two sets of bracket connectors 6 are provided, and the two sets of bracket connectors 6 are fixedly connected to two ends of the battery bracket fixing plate 4. A cavity is formed in the support connector 6, a V-shaped steel bar 8 is arranged in the cavity, the inner wall of the corner of the V-shaped steel bar 8 is fixedly attached to a positioning column 9, the positioning column 9 is fixedly arranged in the cavity, and two movable ends of the V-shaped steel bar 8 are fixedly connected with clamping blocks 7; the one end setting that V-arrangement billet 8 was kept away from to fixture block 7 is circular-arcly, and the symmetry is seted up two sets of slots that hold leg joint head 6 on the mounting groove inner wall, and the locating hole that holds fixture block 7 has all been seted up to the both sides of slot. When the bracket connector 6 is just inserted into the slot, the elastic force of the V-shaped steel bar 8 acts on the fixture blocks 7 at the two ends, so that the fixture blocks 7 are quickly inserted into the positioning holes, the bracket connector 6 is limited and fixed, convenience and rapidness are realized, and the assembly steps of the frame are simplified.
As shown in fig. 2 and 3, the bracket connection head 6 has been seted up near the one end of battery support fixed plate 4 in the slot, and slidable mounting has T shape ejector pad 12 in the slot, and T shape ejector pad 12 is close to the one end fixed connection spring 11 of V-arrangement billet 8, and the both ends of spring 11 all are equipped with a set of depression bar 10, depression bar 10 one end fixed connection ejector pad 12, and the depression bar 10 other end stretches into the cavity and contradicts at the bent angle outer wall of V-arrangement billet 8. Through pressing ejector pad 12 for ejector pad 12 extrudees spring 11 and drives depression bar 10 and go deep into the cavity constantly, to the inside extrusion of V-arrangement billet 8, thereby makes V-arrangement billet 8 take place to deform and drive fixture block 7 and break away from out fast from the locating hole, removes the spacing effect to the leg joint head 6 with this, makes battery holder fixed plate 4 can easily take out from the mounting groove, is convenient for to the dismantlement and the change of battery 2.
The working principle is as follows: in the in-service use, at first pass through the fix with screw with battery 2 at battery holder fixed plate 4, then fill in its whole mounting groove in, when the leg joint head 6 just pegs graft in the slot, utilize the elasticity of V-arrangement billet 8 self to act on fixture block 7 at both ends this moment for fixture block 7 inserts fast and establishes in the locating hole, realizes fixed convenient and fast to the spacing of leg joint head 6, has simplified the equipment step of frame. According to the utility model, the lower pipe and the motor seat are integrally formed by gravity die casting, the lower pipe and the motor seat are cast into an integrated structure in one step by a gravity die casting mode, the function of installing a battery and a motor is achieved by a CNC technician, the step of combined welding of the lower pipe and the motor seat is omitted, the cost of manpower and material resources is reduced, the production efficiency and the quality of accessories production engineering and a frame factory can be well improved, the service life of a frame is prolonged, the appearance design of the frame can be more diversified by the integrated gravity die casting process, the installation of the battery and the motor can be solved in one step, and an electric wire can be hidden in the lower pipe, so that the motor, the electric wire and the battery are better protected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Electric bicycle integral type low tube and motor seat gravity die-casting shaping structure, including low tube and motor seat integrative foundry goods (3), its characterized in that: the utility model discloses a motor, including motor seat, low tube, battery support fixed plate (4), battery protection apron (5), mounting groove, battery (2) and battery support fixed plate (4), battery support fixed plate (5) are fixed on the cell wall of mounting groove through leg joint head (6) are removable, battery (2) fixed connection battery support fixed plate (4), and battery protection apron (5) set up in the outside of battery (2) and fix the opening part at the mounting groove through the buckle with the one end that motor seat integrative foundry goods (3) are close to motor seat and install motor (1), the low tube is equipped with the mounting groove with the middle part of motor seat integrative foundry goods (3), be equipped with battery pack in the mounting groove, battery pack includes battery (2), battery support fixed plate (4) and battery protection apron (5).
2. The gravity die-casting structure for the integrated lower tube and the motor seat of the electric bicycle according to claim 1, wherein: the support connectors (6) are provided with two groups, and the two groups of support connectors (6) are fixedly connected to two ends of the battery support fixing plate (4).
3. The gravity die-casting structure for the integrated lower tube and the motor seat of the electric bicycle as claimed in claim 2, wherein: the support connection head (6) is inside to be seted up the cavity, is equipped with V-arrangement billet (8) in the cavity, and the turning inner wall of V-arrangement billet (8) is fixed to be laminated in reference column (9), and reference column (9) are fixed to be set up in the cavity, two equal fixedly connected with fixture blocks (7) of expansion end of V-arrangement billet (8).
4. The gravity die-casting structure for the integrated lower tube and the motor seat of the electric bicycle according to claim 3, wherein: the one end setting that V-arrangement billet (8) were kept away from in fixture block (7) is circular-arcly, and two sets of slots that hold leg joint head (6) are seted up to the symmetry on the mounting groove inner wall, and the locating hole that holds fixture block (7) is all seted up to the both sides of slot.
5. The gravity die-casting structure for the integrated lower tube and the motor seat of the electric bicycle according to claim 4, wherein: the one end that the leg joint head (6) are close to battery holder fixed plate (4) has seted up the slot, and slidable mounting has T shape ejector pad (12) in the slot, and one end fixed connection spring (11) that T shape ejector pad (12) are close to V-arrangement billet (8), and the both ends of spring (11) all are equipped with a set of depression bar (10), depression bar (10) one end fixed connection ejector pad (12), and depression bar (10) other end stretches into the cavity and contradicts at the bent angle outer wall of V-arrangement billet (8).
6. The gravity die-casting structure for the integrated lower tube and the motor seat of the electric bicycle according to claim 5, wherein: the lower pipe and the motor seat in the lower pipe and motor seat integrated casting (3) are integrally formed through gravity die-casting, and the lower pipe and the motor seat are cast into an integrated structure through a gravity die-casting mode at one time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121761828.0U CN215922444U (en) | 2021-07-30 | 2021-07-30 | Gravity die-casting forming structure for integrated lower pipe and motor seat of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121761828.0U CN215922444U (en) | 2021-07-30 | 2021-07-30 | Gravity die-casting forming structure for integrated lower pipe and motor seat of electric bicycle |
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| CN215922444U true CN215922444U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121761828.0U Active CN215922444U (en) | 2021-07-30 | 2021-07-30 | Gravity die-casting forming structure for integrated lower pipe and motor seat of electric bicycle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564124A (en) * | 2023-10-23 | 2024-02-20 | 太仓升达机械有限公司 | Processing device and processing method for integrated motor seat middle tube of electric bicycle |
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2021
- 2021-07-30 CN CN202121761828.0U patent/CN215922444U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564124A (en) * | 2023-10-23 | 2024-02-20 | 太仓升达机械有限公司 | Processing device and processing method for integrated motor seat middle tube of electric bicycle |
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