Novel anti-stiction bushing for a saddle tube

Abstract

Novel saddle pipe anti-jamming bushing, including saddle adjusting rod, fixed insertion pipe, fastening connecting sleeve, the saddle adjusting rod outside connection fixed insertion pipe, saddle adjusting rod in fixed insertion pipe sliding, fixed insertion pipe outside connection fastening connecting sleeve, saddle adjusting rod outside have two one exhaust hole, one exhaust hole symmetry sets up, saddle adjusting rod periphery has two rows of positioning protrusions, positioning protrusions symmetry sets up, fixed insertion pipe upper portion has two auxiliary adjusting plates, auxiliary adjusting plate symmetry sets up, auxiliary adjusting plate inside connection saddle adjusting rod, under the cooperation of two kinds of structures, improve the stability of the whole device, effectively avoid the jamming phenomenon caused by the saddle pipe falling too fast, install fast, simple operation, reasonable structure, good limiting effect, accurate positioning, prolong the service life.

Description

Technical Field

[0001] This utility model relates to the field of bicycles, and in particular to a novel anti-jamming bushing for saddle tubes. Background Technology

[0002] The existing bicycle saddle tube, which is directly attached to the bottom of the saddle, is mounted on the quick-release center tube without any protective device. When adjusting the saddle height, the saddle tube falls too quickly, causing it to jam and preventing it from being adjusted upwards, which is inconvenient for the user. The structure needs to be improved. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of the existing technology by providing a novel anti-jamming bushing for saddle tubes. This bushing improves the stability of the entire device through the combined use of two structures, effectively preventing jamming caused by excessively rapid descent of the saddle tube. It also offers quick installation, good limiting effect, accurate positioning, and extended service life.

[0004] The objective of this utility model is achieved through the following technical solution: A novel anti-jamming bushing for saddle tubes includes a saddle adjusting rod, a fixed insert tube, and a fastening connecting sleeve. The saddle adjusting rod is connected to the fixed insert tube on its outer side and slides within the fixed insert tube. The fastening connecting sleeve is connected to the outer side of the fixed insert tube. The saddle adjusting rod has two symmetrically arranged vent holes on its outer side. The saddle adjusting rod also has two rows of symmetrically arranged positioning protrusions on its periphery. The fixed insert tube has two symmetrically arranged auxiliary adjusting plates on its upper part. The saddle adjusting rod is connected to the inner side of each auxiliary adjusting plate and slides within the auxiliary adjusting plate.

[0005] The auxiliary adjustment plate of this utility model has multiple positioning slots on its inner side, which are symmetrically arranged. A positioning protrusion is connected to the inner side of the positioning slot. The positioning protrusion is adapted to the positioning slot and slides in the positioning slot. A fastening connecting sleeve is connected to the outer side of the auxiliary adjustment plate.

[0006] The fastening connecting sleeve of this utility model has two fixed connecting ears on the outside, which are symmetrically arranged. A fastening connecting rod is connected to the inside of the fixed connecting ear. The fastening connecting rod can rotate or slide inside the fixed connecting ear. One end of the fastening connecting rod is connected to a handle through a rotating shaft. The handle can rotate on the rotating shaft.

[0007] The saddle adjusting rod of this utility model has two rows of positioning slots at its lower part, which are symmetrically arranged. The inner side of the fixed insertion tube has two adjusting grooves, which are also symmetrically arranged. A positioning block is connected to the inner side of each adjusting groove, and the positioning block slides within the groove. One end of the positioning block is connected to a positioning slot, and the positioning block adapts to the positioning slot, sliding within it. A spring connecting sleeve is connected to the bottom of the saddle adjusting rod. The top of the spring connecting sleeve has a second vent hole, and a spring is connected to the inner side of the spring connecting sleeve. An auxiliary support plate is located inside the fixed insertion tube. The upper part of the auxiliary support plate has a spring positioning groove, and the bottom of the spring positioning groove has a third vent hole. The lower part of the spring is connected to the spring positioning groove. Beneficial effects

[0008] In this invention, the positioning protrusion and positioning slot cooperate during the adjustment process, which can effectively solve the jamming phenomenon caused by the saddle tube falling too fast when adjusting the height of the saddle tube. The limiting effect is good and the positioning is accurate.

[0009] This invention provides an upward force on the saddle adjusting rod through the cooperation of the spring connecting sleeve and the spring. This prevents the saddle tube from falling too quickly and getting stuck after repeated adjustments of the positioning insert during long-term use, thus extending the service life.

[0010] This invention, through the combined use of two structures, improves the stability of the entire device, effectively avoids jamming caused by the saddle tube falling too quickly, and features quick installation, simple operation, and a reasonable structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the combined structure of the novel saddle tube anti-jamming bushing, saddle adjusting rod, fixed insert, and fastening connecting sleeve described in this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the novel saddle tube anti-jamming bushing saddle adjusting rod described in this utility model.

[0013] Figure 3 This is a schematic diagram of the novel saddle tube anti-jamming bushing fixing insertion tube structure described in this utility model.

[0014] Figure 4 This is a cross-sectional view of the novel saddle tube anti-jamming bushing fixing insertion tube structure described in this utility model.

[0015] Figure 5 This is a schematic diagram of the novel anti-jamming bushing positioning block structure of the saddle tube described in this utility model.

[0016] Figure 6 This is a schematic diagram of the novel anti-jamming bushing fastening connection sleeve structure of the saddle tube described in this utility model.

[0017] Figure 7 This is a cross-sectional view of the novel saddle tube anti-jamming bushing, saddle adjusting rod, fixed insert, and fastening connecting sleeve combination structure described in this utility model.

[0018] Figure 8 This is a schematic diagram of the novel saddle tube anti-jamming bushing spring connecting sleeve and spring combination structure described in this utility model. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example 1: A novel anti-jamming bushing for saddle tubes includes a saddle adjusting rod 01, a fixed insertion tube 02, and a fastening connecting sleeve 03. The saddle adjusting rod 01 is connected to the fixed insertion tube 02 on its outer side and slides within the fixed insertion tube 02. The fixed insertion tube 02 is connected to the fastening connecting sleeve 03 on its outer side. The saddle adjusting rod 01 has two symmetrically arranged vent holes 09 on its outer side. The saddle adjusting rod 01 has two rows of symmetrically arranged positioning protrusions 07 on its outer periphery. The fixed insertion tube 02 has two symmetrically arranged auxiliary adjusting plates 06 on its upper part. The saddle adjusting rod 01 is connected to the inner side of the auxiliary adjusting plates 06 and slides within the auxiliary adjusting plates 06.

[0020] Example 2: The auxiliary adjustment plate 06 of this utility model has multiple positioning slots 08 on its inner side, which are symmetrically arranged. Positioning protrusions 07 are connected to the inner side of the positioning slots 08. The positioning protrusions 07 are adapted to the positioning slots 08 and slide within the positioning slots 08. The outer side of the auxiliary adjustment plate 06 is connected to a fastening sleeve 03. During the adjustment process, the positioning protrusions 07 cooperate with the positioning slots 08, which can effectively solve the jamming phenomenon caused by the saddle tube falling too fast when adjusting the height of the saddle tube. The limiting effect is good and the positioning is accurate.

[0021] Example 3: The fastening connecting sleeve 03 of this utility model has two fixed connecting ears 16 on the outside. The fixed connecting ears 16 are symmetrically arranged. The inner side of the fixed connecting ears 16 is connected to the fastening connecting rod 14. The fastening connecting rod 14 rotates within the fixed connecting ears 16 and slides within the fixed connecting ears 16. One end of the fastening connecting rod 14 is connected to the handle 15 through a rotating shaft. The handle 15 rotates on the rotating shaft.

[0022] Example 4: The saddle adjusting rod 01 of this utility model has two rows of positioning slots 10 at its lower part, which are symmetrically arranged. The inner side of the fixed insertion tube 02 has two adjusting grooves 05, which are also symmetrically arranged. Positioning blocks 04 are connected to the inner side of each adjusting groove 05 and slide within it. One end of each positioning block 04 is connected to a positioning slot 10, and the positioning blocks 04 are adapted to the positioning slots 10, allowing them to slide within the slots. A spring connecting sleeve 17 is connected to the bottom of the saddle adjusting rod 01. The top of the spring connecting sleeve 17 has a second vent hole 19. A spring 18 is connected to the inner side of the spring connecting sleeve 17. The fixed insertion tube 02... The inner side has an auxiliary support plate 11, the upper part of the auxiliary support plate 11 has a spring positioning groove 12, the bottom of the spring positioning groove 12 has a third exhaust hole 13, and the lower part of the spring 18 is connected to the spring positioning groove 12. With the cooperation of the spring connecting sleeve 17 and the spring 18, the saddle adjusting rod 01 has an upward pushing force, which prevents the saddle tube from getting too fast and jamming after repeated adjustments of the positioning plug 04 during long-term use. This extends the service life. With the cooperation of the two structures, the stability of the entire device is improved, effectively avoiding jamming caused by the saddle tube getting too fast. It is quick to install, easy to operate, and has a reasonable structure.

[0023] Example 5: Installation steps: To adjust the saddle height, first open handle 15 outwards, then pull the positioning blocks 04 to both sides to separate them from the positioning slots 10. Next, pull the saddle adjusting rod 01 upwards or downwards to move it downwards within the fixed tube 02 to adjust the saddle height. After adjustment, push the two positioning blocks 04 inwards into the fixed tube 02 to insert them into the positioning slots 10. Finally, press handle 15 towards the fixed tube 02. Handle 15, through the fastening connecting rod 14, drives the fastening connecting sleeve 03 to fasten the auxiliary adjusting plate 06, thus completing the saddle height adjustment. During adjustment, the positioning protrusion 07 cooperates with the positioning slot 08 to effectively solve the jamming problem caused by the saddle tube falling too quickly when adjusting its height. This provides good limiting effect and accurate positioning. Simultaneously, the spring connecting sleeve 17 and spring 18 work together to provide an upward force on the saddle adjusting rod 01, preventing the saddle tube from falling too quickly and jamming after repeated adjustments of the positioning insert 04 over a long period of use, thus extending its service life. The combined effect of these two structures improves the stability of the entire device, effectively preventing jamming caused by the saddle tube falling too quickly. It is quick to install, simple to operate, and has a reasonable structure. The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A new type of anti-stiction bushing for a saddle tube, characterized in that The device includes a saddle adjusting rod (01), a fixed insertion tube (02), and a fastening connecting sleeve (03). The saddle adjusting rod (01) is connected to the fixed insertion tube (02) on the outside and slides inside the fixed insertion tube (02). The fixed insertion tube (02) is connected to the fastening connecting sleeve (03) on the outside. The saddle adjusting rod (01) has two exhaust holes (09) on the outside and is symmetrically arranged. The saddle adjusting rod (01) has two rows of positioning protrusions (07) on the periphery and is symmetrically arranged. The fixed insertion tube (02) has two auxiliary adjusting plates (06) on the upper part and is symmetrically arranged. The saddle adjusting rod (01) is connected to the inside of the auxiliary adjusting plate (06) and slides inside the auxiliary adjusting plate (06).

2. The new type of anti-seize bushing for saddle tubes according to claim 1, characterized in that The auxiliary adjustment plate (06) has multiple positioning slots (08) on its inner side. The positioning slots (08) are symmetrically arranged. The positioning protrusions (07) are connected to the inner side of the positioning slots (08). The positioning protrusions (07) are adapted to the positioning slots (08). The positioning protrusions (07) slide in the positioning slots (08). The fastening connecting sleeve (03) is connected to the outer side of the auxiliary adjustment plate (06).

3. The new type of anti-seize bushing for saddle tubes according to claim 2, characterized in that The fastening connecting sleeve (03) has two fixed connecting ears (16) on the outside. The fixed connecting ears (16) are symmetrically arranged. The fastening connecting rod (14) is connected to the inside of the fixed connecting ear (16). The fastening connecting rod (14) rotates in the fixed connecting ear (16) and slides in the fixed connecting ear (16). One end of the fastening connecting rod (14) is connected to the handle (15) through a rotating shaft. The handle (15) rotates on the rotating shaft.

4. The new type of anti-seize bushing for saddle tubes according to claim 1, characterized in that The saddle adjusting rod (01) has two rows of positioning slots (10) at its lower part. The positioning slots (10) are symmetrically arranged. The inner side of the fixed insertion tube (02) has two adjusting grooves (05). The adjusting grooves (05) are symmetrically arranged. The inner side of the adjusting grooves (05) is connected to the positioning block (04). The positioning block (04) slides in the adjusting groove (05). One end of the positioning block (04) is connected to the positioning slot (10). The positioning block (04) is adapted to the positioning slot (10). The positioning block (04) slides in the positioning slot (10).

5. The new type of anti-seize bushing for saddle tubes according to claim 1, characterized in that The bottom of the saddle adjusting rod (01) is connected to the spring connecting sleeve (17), the top of the spring connecting sleeve (17) has a second exhaust hole (19), and the inner side of the spring connecting sleeve (17) is connected to the spring (18).

6. The new type of anti-seize bushing for saddle tubes according to claim 1, characterized in that The inner side of the fixed insertion tube (02) has an auxiliary support plate (11), the upper part of the auxiliary support plate (11) has a spring positioning groove (12), the bottom of the spring positioning groove (12) has a third exhaust hole (13), and the lower part of the spring (18) is connected to the spring positioning groove (12).

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