CN212497533U - Bicycle bowl group mounting tool - Google Patents
Bicycle bowl group mounting tool Download PDFInfo
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- CN212497533U CN212497533U CN202021091017.XU CN202021091017U CN212497533U CN 212497533 U CN212497533 U CN 212497533U CN 202021091017 U CN202021091017 U CN 202021091017U CN 212497533 U CN212497533 U CN 212497533U
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- pressure plate
- bowl
- concentric circles
- screw rod
- lower pressure
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Abstract
A bicycle bowl group mounting tool comprises a handle, a connecting piece, a screw rod, a plane thrust bearing, an upper pressure plate, a lower pressure plate and a fixing nut; the handle is horizontally arranged on the connecting piece, and the connecting piece and the screw are locked and fixed through threads; the centers of the upper pressure plate and the lower pressure plate are provided with through holes which are respectively sleeved on the screw rod; the upper pressure plate and the lower pressure plate are provided with a plurality of layers of concentric circles, and the diameters of the concentric circles are gradually reduced from the middle to the two ends; the bottom of the upper pressure plate presses an upper bowl of the bowl group or presses the upper end of the head pipe of the frame; the top of the lower pressure plate is propped against the lower bowl of the bowl group; the plane thrust bearing is sleeved on the screw rod; the bottom of the lower pressure plate presses the fixing nut. The utility model discloses effectively solved present bowl group mounting tool installation in-process pressure disk and bowl and taken place the dislocation skew easily and lead to bowl group to press the skew, press the deformation, press not advance, frame head pipe press even and break the scheduling problem, can satisfy the installation that multiple common specification bowl was organized simultaneously, the commonality is strong.
Description
Technical Field
The utility model relates to a bowl group installs technical field, especially relates to a bicycle bowl group mounting tool.
Background
The mounting tool for the bicycle bowl group is an auxiliary tool for assembling an upper bowl and a lower bowl of the bowl group on a head pipe of a bicycle frame. The upper and lower bowls of the bicycle bowl group are in interference fit with the inner hole of the head tube of the bicycle frame, and the bowls can be pressed into the inner hole of the head tube by providing external force in the assembling process. In addition, through the development of the bicycle for many years, specifications of a frame head pipe and a bowl group are diversified.
At present, no axial positioning exists between a mounting tool pressure plate and a bowl or a frame head pipe on the market, dislocation and deviation can easily occur between the tool and the bowl or the frame head pipe in the assembling process, so that the problems that the bowl group is biased in pressure, deformed in pressure, not pressed in pressure, even the frame head pipe is broken in pressure and the like are caused, and in addition, along with the diversification of the specifications of the bowl group, the universality of a plurality of bowl group tools is increasingly poor.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a bicycle bowl group mounting tool can effectively solve in the bowl group installation because instrument and bowl or frame head pipe take place the dislocation skew easily and lead to the problem of installation difficulty, can satisfy the installation of the bowl group of multiple common specification simultaneously again, and the commonality is strong.
(II) technical scheme
The utility model provides a mounting tool for a bicycle bowl group, which comprises a handle, a connecting piece, a screw rod, a plane thrust bearing, an upper pressure plate, a lower pressure plate and a fixing nut;
the handle is horizontally arranged on the connecting piece, the screw rod is vertically arranged, and the connecting piece and the screw rod are locked and fixed through threads;
the centers of the upper pressure plate and the lower pressure plate are provided with through holes which are respectively sleeved on the screw rod, and the upper pressure plate is positioned above the lower pressure plate; the upper pressure plate is provided with a plurality of layers of concentric circles, the bottom of the upper pressure plate presses an upper bowl of the bowl group and is sleeved in an inner hole of the upper bowl through the concentric circles or presses the upper end of the frame head pipe and is sleeved in an inner hole at the upper end of the frame head pipe through the concentric circles; the lower pressure plate is provided with a plurality of layers of concentric circles, the top of the lower pressure plate props against the lower bowl of the bowl group and is sleeved in the inner hole of the lower bowl through the concentric circles;
the plane thrust bearing is sleeved on the screw rod, the upper end face of the plane thrust bearing abuts against the connecting piece, and the lower end face presses the upper pressure plate; the bottom of the lower pressure plate presses the fixing nut, and the fixing nut is in threaded connection with the screw. The fixing nut is clamped by the wrench, the handle is rotated, the screw rod and the fixing nut perform relative spiral motion, the upper pressure plate and the lower pressure plate are pulled to perform axial opposite motion, and finally the upper bowl and the lower bowl are pressed into two ends of the frame head pipe.
Preferably, the diameters of the concentric circles on the upper pressure plate are gradually reduced from the middle to the two ends, except the maximum diameter concentric circle, each layer of concentric circles are correspondingly matched with the inner holes of the upper bowls with different specifications or the inner holes of the upper ends of the frame head pipes, and the matching is clearance fit.
Preferably, the diameters of the concentric circles on the lower pressure plate are gradually reduced from the middle to the two ends, except the concentric circle with the maximum diameter, each layer of concentric circles are correspondingly matched with the inner holes of the lower bowls with different specifications, and the matching is clearance fit.
Preferably, the upper pressure plate and the screw rod are in clearance fit, and the lower pressure plate and the screw rod are in clearance fit.
Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has: the utility model discloses an upper pressure disk and lower pressure disk are provided with the concentric circles with bowl or frame head pipe hole matched with respectively, the pressure disk concentric circles just overlaps on corresponding bowl hole or frame head pipe hole during use, therefore pressure disk and bowl or frame head pipe just can not produce the dislocation skew during installation, simultaneously, the screw rod passes the center of pressure disk and makes screw thread rotary motion with fixation nut, provide the extrusion force of pressure disk evenly distributed, make the bowl can steady press in on the frame head pipe, guarantee the stability of installation, the precision, the installation effectiveness is improved, the problem that bowl group easily presses and does not advance when having solved the installation of the former bowl group, press partially, press the deformation, the head pipe breaks, etc., effectively reduced the damage probability of bowl group, frame, improved the life of bowl group, the steering operation performance of bicycle is improved; in addition, the concentric circles with different diameters of the pressure plate correspond to bowl groups or head pipes with different specifications, so that the mounting requirements of the bowl groups with different specifications on the market can be met, and the universality is high; the design of the plane thrust bearing converts the direct sliding friction of the connecting piece and the pressure plate into the rolling friction of the bearing, greatly reduces the installation resistance and is convenient to install.
Drawings
Fig. 1 is a schematic structural view of a bicycle bowl group mounting tool provided by the present invention.
Fig. 2 is a working state diagram of the lower bowl mounted by the mounting tool for the bicycle bowl group provided by the utility model.
Fig. 3 is a working state diagram of the mounting upper bowl of the mounting tool for bicycle bowl group provided by the utility model.
Fig. 4 is a schematic structural view of an upper pressure plate in the mounting tool for a bicycle bowl group provided by the present invention.
Reference numerals: 1. a handle; 2. a connecting member; 3. a screw; 4. a planar thrust bearing; 5. an upper platen; 6. a lower platen; 7. fixing a nut; 8. a bowl is put; 9. putting the bowl on; 10. a frame head tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the utility model provides a bicycle bowl group mounting tool, which comprises a handle 1, a connecting piece 2, a screw rod 3, a plane thrust bearing 4, an upper pressure plate 5, a lower pressure plate 6 and a fixing nut 7;
the handle 1 is horizontally arranged on the connecting piece 2, the screw rod 3 is vertically arranged, and the connecting piece 2 and the screw rod 3 are locked and fixed through threads;
the bottom of the lower bowl 8 is provided with an inner hole, the top of the upper bowl 9 is provided with an inner hole, and two ends of the frame head pipe 10 are provided with inner holes;
through holes are formed in the centers of the upper pressure plate 5 and the lower pressure plate 6 and are respectively sleeved on the screw rods 3, and the upper pressure plate 5 is positioned above the lower pressure plate 6; the upper pressure plate 5 is provided with a plurality of layers of concentric circles, the bottom of the upper pressure plate presses an upper bowl 9 of the bowl group and is sleeved in an inner hole of the upper bowl 9 through the concentric circles or presses the upper end of the frame head pipe 10 and is sleeved in an inner hole of the upper end of the frame head pipe 10 through the concentric circles; the lower pressure plate 6 is provided with a plurality of layers of concentric circles, the top of the lower pressure plate props against a lower bowl 8 of the bowl group and is sleeved in an inner hole of the lower bowl 8 through the concentric circles;
the plane thrust bearing 4 is sleeved on the screw rod 3, the upper end face of the plane thrust bearing 4 abuts against the connecting piece 2, and the lower end face presses the upper pressure plate 5; the bottom of the lower pressure plate 6 presses the fixing nut 7, and the fixing nut 7 is in threaded connection with the screw rod 3. The fixing nut 7 is clamped by a wrench, the handle 1 is rotated, the screw 3 and the fixing nut 7 perform relative spiral motion, the upper pressure plate 5 and the lower pressure plate 6 are pulled to perform axial opposite motion, and finally the upper bowl 9 and the lower bowl 8 are pressed into two ends of the frame head pipe 10.
In an alternative embodiment, the upper platen 5 is provided with six layers of concentric rings, the largest diameter concentric circle is arranged in the second layer, the sizes of the other concentric circles are gradually decreased from layer to layer, except the largest diameter concentric circle, each layer of concentric circles is correspondingly matched with the inner hole of the upper bowl 9 or the inner hole of the upper end of the frame head pipe 10 with different specifications, and the matching is clearance fit.
In an alternative embodiment, the lower pressing disc 6 is provided with six layers of concentric circles, the largest diameter concentric circle is arranged in the penultimate layer, the sizes of the other concentric circles are gradually decreased upwards layer by layer, except the largest diameter concentric circle, each layer of concentric circles is correspondingly matched with the inner holes of the lower bowls 8 with different specifications, and the matching is clearance fit.
In an alternative embodiment, the upper pressure plate 5 is in clearance fit with the screw 3, and the lower pressure plate 6 is in clearance fit with the screw 3.
The utility model discloses in, for the installation accuracy of guaranteeing bowl group, avoid the damage of frame, bowl group, the last bowl 9 of bowl group, lower bowl 8 installation need separately go on successively. The lower bowl 8 is installed firstly, as shown in fig. 2, one end of the screw rod 3 is locked on the connecting piece 2, the screw rod 3 is connected with the plane thrust bearing 4 and the upper pressure plate 5 in series, a certain layer of concentric circles of the upper pressure plate 5 are just sleeved on an upper end inner hole of the frame head pipe 10, the head of the lower bowl 8 is aligned to a lower end inner hole of the frame head pipe 10, a certain section of concentric circles of the lower pressure plate 6 are just sleeved on an inner hole of the lower bowl 8, and the fixing nut 7 is pressed on the lower pressure plate 6. During installation, the handle 1 is rotated, the screw rod 3 rotates along with the screw rod, the fixing nut 7 pushes the lower pressing disc 6 and the lower bowl 8 to be continuously pushed upwards along with the rotation of the screw rod 3 until the lower bowl is completely pressed into the inner hole at the lower end of the frame head pipe 10. Then the handle 1 is rotated anticlockwise, the nut is loosened, the tool is removed, and the lower bowl 8 is installed.
Next, the upper bowl 9 is installed, the operation steps are similar to the installation of the lower bowl 8, as shown in fig. 4, a certain layer of concentric circles of the upper pressure plate 5 is sleeved on the inner hole of the upper bowl 9, the lower end of the upper bowl 9 is aligned with the inner hole of the upper end of the frame head pipe 10, a certain section of concentric circles of the lower pressure plate 6 is sleeved on the inner hole of the lower bowl 8, and the fixing nut 7 is pressed against the lower pressure plate 6. During installation, the handle 1 is rotated, the screw rod 3 rotates along with the screw rod, the fixing nut 7 pushes the lower pressing disc 6 and the lower bowl 8 to keep still, and therefore the handle 1 continuously pushes the plane thrust bearing 4, the upper pressing disc 5 and the upper bowl 9 to be pressed downwards along with the rotation until the upper bowl is completely pressed into an inner hole at the upper end of the frame head pipe 10. Then the handle 1 is rotated anticlockwise, the nut is loosened, the tool is removed, and the upper bowl 9 is installed.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (4)
1. A bicycle bowl group mounting tool is characterized by comprising a handle (1), a connecting piece (2), a screw rod (3), a plane thrust bearing (4), an upper pressure plate (5), a lower pressure plate (6) and a fixing nut (7);
the handle (1) is horizontally arranged on the connecting piece (2), the screw rod (3) is vertically arranged, and the connecting piece (2) and the screw rod (3) are locked and fixed through threads;
the centers of the upper pressure plate (5) and the lower pressure plate (6) are provided with through holes which are respectively sleeved on the screw rod (3), and the upper pressure plate (5) is positioned above the lower pressure plate (6); the upper pressure plate (5) is provided with a plurality of layers of concentric circles, the bottom of the upper pressure plate presses an upper bowl (9) of the bowl group and is sleeved in an inner hole of the upper bowl (9) through the concentric circles or presses the upper end of the frame head pipe (10) and is sleeved in an inner hole of the upper end of the frame head pipe (10) through the concentric circles; the lower pressure plate (6) is provided with a plurality of layers of concentric circles, the top of the lower pressure plate props against a lower bowl (8) of the bowl group and is sleeved in an inner hole of the lower bowl (8) through the concentric circles;
the plane thrust bearing (4) is sleeved on the screw rod (3), the upper end face of the plane thrust bearing (4) abuts against the connecting piece (2), and the lower end face presses the upper pressure plate (5); the bottom of the lower pressure plate (6) presses the fixing nut (7), and the fixing nut (7) is in threaded connection with the screw (3).
2. The bicycle headset mounting tool according to claim 1, wherein the diameters of concentric circles on the upper pressure plate (5) decrease from the middle to the two ends, and except for the maximum diameter concentric circle, each layer of concentric circles are correspondingly matched with inner holes of upper bowls (9) with different specifications or inner holes of the upper ends of frame head pipes (10), and the matching is clearance fit.
3. The bicycle headset mounting tool according to claim 1, wherein the diameter of the concentric circles on the lower pressure plate (6) decreases from the middle to the two ends, and except for the maximum diameter concentric circle, each layer of concentric circles is correspondingly matched with the inner holes of the lower bowls (8) with different specifications, and the matching is clearance fit.
4. A bicycle headset mounting tool according to claim 1, characterized in that the upper pressure plate (5) is a clearance fit with the screw (3) and the lower pressure plate (6) is a clearance fit with the screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021091017.XU CN212497533U (en) | 2020-06-12 | 2020-06-12 | Bicycle bowl group mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021091017.XU CN212497533U (en) | 2020-06-12 | 2020-06-12 | Bicycle bowl group mounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212497533U true CN212497533U (en) | 2021-02-09 |
Family
ID=74395177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021091017.XU Active CN212497533U (en) | 2020-06-12 | 2020-06-12 | Bicycle bowl group mounting tool |
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| Country | Link |
|---|---|
| CN (1) | CN212497533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942131A (en) * | 2022-06-15 | 2022-08-26 | 宁波恒隆车业有限公司 | Bicycle bowl group strength test device |
-
2020
- 2020-06-12 CN CN202021091017.XU patent/CN212497533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942131A (en) * | 2022-06-15 | 2022-08-26 | 宁波恒隆车业有限公司 | Bicycle bowl group strength test device |
| CN114942131B (en) * | 2022-06-15 | 2023-04-07 | 宁波恒隆车业有限公司 | Bicycle bowl group strength test device |
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