Automatic mounting device for PU (polyurethane) sleeve of pedal shaft
By setting a snap ring and a buckle assembly on the foot pedal shaft, combined with a U-shaped pin, the problems of cumbersome installation and easy corrosion of PU sleeves are solved, achieving a simple and stable connection and protective effect.
Patent Information
- Application Number
- CN202520744782.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-19
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-19
AI Technical Summary
In the existing technology, the PU sleeve of the foot pedal axle is cumbersome to install and is easily corroded, while the screw fixing is inconvenient and not waterproof.
The upper and lower PU sleeves are respectively equipped with interlocking ring components and buckle components, combined with U-shaped pins that pass through and lock the round holes to achieve automatic installation and stable connection.
It enables easy installation and stable connection of the PU sleeve, prevents rainwater and dust from entering, and improves service life.
Smart Images

Figure CN223905231U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to footboard shaft assembly technical field, concretely relates to a kind of automatic installation device for footboard shaft PU cover. BACKGROUND
[0002] As the important component of footboard, in order to ensure that user can let foot stable place on footboard shaft and carry out power, it needs to be fixed in the upper and lower surface of footboard shaft PU or rubber material sleeve, and the sleeve is usually locked on the surface of pedal shaft by screw, and the screw needs to be arranged around the pedal, so more screws are needed to be fixed, and the operation is more complicated;At the same time, when installing PU cover locking screw, not only the posture of screw hole needs to be paid attention to, but also hole needs to be opened on PU cover, rainwater and dust are easy to enter between PU cover and pedal shaft along the joint in daily use, so that pedal shaft is easy to be eroded. SUMMARY
[0003] The utility model aims at the deficiency of prior art, provide a kind of automatic installation device for footboard shaft PU cover, to solve the problem proposed in background art.
[0004] To achieve this purpose, the utility model adopts the following technical scheme:
[0005] A kind of automatic installation device for footboard shaft PU cover, including footboard shaft, the pedal of fixed in the lateral arrangement of footboard shaft outer circle surface, and the upper layer PU cover and the lower layer PU cover of clamping and being arranged on the upper and lower surfaces of pedal;Wherein, 12 locking round holes are arranged in the equal distance in the inside of pedal, and U-shaped bolt that is transversely through pedal is arranged in every two rows of locking round holes;
[0006] The upper surface of lower layer PU cover is fixed with 12 pairs of plug-in buckle assemblies arranged at equal distance, and the lower surface of upper layer PU cover is fixed with 12 pairs of plug-in ring assemblies arranged at equal distance, and plug-in buckle assembly is inserted into the inside of plug-in ring assembly, and plug-in ring assembly and plug-in buckle assembly are all located in the inner cavity of locking round hole;
[0007] The plug-in buckle assembly includes base, buckle, which is annularly arranged and fixed on the upper surface of base, and fixed plate, which is fixed between buckle and located at the central position of the top surface of base;
[0008] The plug-in ring assembly includes clamp pipe, and annular clamping slot, which is arranged on the sidewall of the inner cavity of clamp pipe for the clamping of buckle.
[0009] As a preferred scheme of the automatic installation device for the foot pedal shaft PU sleeve, the U-shaped bolt is in a U shape as a whole, and the two ends of the U-shaped bolt are transversely penetrated through the locking round hole, wherein the pedal and the locking round hole are internally provided with hole grooves for transversely penetrating the U-shaped bolt, and the inner cavities of the hole grooves are in a tightly coupled state with the outer circle of the U-shaped bolt.
[0010] As a preferred scheme of the automatic installation device for the foot pedal shaft PU sleeve, the outer diameter of the clamping pipe is consistent with the inner diameter of the locking round hole, the clamping pipe is internally provided with an insertion hole for transversely penetrating the U-shaped bolt, and the insertion hole is in the same horizontal line with the locking round hole of the pedal and has a consistent hole diameter.
[0011] As a preferred scheme of the automatic installation device for the foot pedal shaft PU sleeve, the inner portion of the fixed plate is provided with a through hole for penetrating and inserting the U-shaped bolt, and the through hole is in the same horizontal line with the insertion hole in the inner portion of the clamping pipe and has a consistent hole diameter.
[0012] As a preferred scheme of the automatic installation device for the foot pedal shaft PU sleeve, the side, away from the buckle, of the base is fixedly connected with the upper surface of the lower layer PU sleeve.
[0013] As a preferred scheme of the automatic installation device for the foot pedal shaft PU sleeve, the outer surfaces of the buckles are fixedly provided with clamping blocks capable of being clamped into the inner portion of the annular clamping groove, and the buckles have a gap of 1mm-2.5mm therebetween, for providing a contracted space for inserting the buckles into the inner portion of the clamping pipe.
[0014] As a preferred scheme of the automatic installation device for the foot pedal shaft PU sleeve, the sides, close to each other, of the lower layer PU sleeve and the upper layer PU sleeve are provided with grooves abutting the upper and lower surfaces of the pedal, and the sides, away from each other, of the lower layer PU sleeve and the upper layer PU sleeve are linearly and equidistantly fixedly provided with a plurality of rubber protrusions.
[0015] The present application has the following beneficial effects:
[0016] The present application is provided with 12 pairs of plug-in clamping ring assemblies and 12 pairs of plug-in buckles on the surfaces of the upper and lower layer PU sleeves, and 12 corresponding round holes are formed on the foot pedal shaft, the plug-in clamping ring assemblies and the plug-in buckles are clamped with each other to achieve connection, and the PU sleeve can be automatically installed and connected on the foot pedal shaft, and the U-shaped bolt is penetrated through the round hole and the two assemblies to achieve the effect of reinforcing the connection stability of the two assemblies and preventing the separation of the PU sleeve. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.
[0018] Figure 1 Figure 1 is a structural schematic diagram of the automatic mounting device for the foot pedal shaft PU sleeve according to the present application.
[0019] Figure 2 Figure 2 is a split structural schematic diagram of the foot pedal shaft and the PU sleeve according to the present application.
[0020] Figure 3 Figure 3 is a structural schematic diagram of the upper PU sleeve according to the present application.
[0021] Figure 4 Figure 4 is a structural schematic diagram of the lower PU sleeve according to the present application.
[0022] Figure 5 Figure 5 is an enlarged structural schematic diagram of the A area in Figure 1. Figure 3
[0023] Figure 6 is an enlarged structural schematic diagram of the B area in Figure 1. Figure 6 Figure 4 Figure 7 is a structural schematic diagram of the automatic mounting device for the foot pedal shaft PU sleeve according to the present application.
[0024] 1, foot pedal shaft; 2, pedal; 3, lower PU sleeve; 4, upper PU sleeve; 5, locking round hole; 6, U-shaped bolt; 7, clamping pipe; 8, annular clamping groove; 9, insertion hole; 10, base; 11, buckle; 12, fixed plate. DETAILED DESCRIPTION
[0025] The technical scheme of the present application will be further described below by combining the drawings and through specific embodiments.
[0026] The drawings are only used for exemplary illustration, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the present patent; in order to better illustrate the embodiments of the present application, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it can be understood that some known structures and their descriptions in the drawings may be omitted.
[0027] The drawings are only used for exemplary illustration, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the present patent; in order to better illustrate the embodiments of the present application, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it can be understood that some known structures and their descriptions in the drawings may be omitted.
[0028] The same or similar reference signs in the drawings of the embodiments of the present utility model correspond to the same or similar components; in the description of the present utility model, it is understood that, if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for ordinary skilled persons in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0029] In the description of the present utility model, unless otherwise explicitly specified and limited, if the terms "connection" and the like indicate the connection relationship between components, the term should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For ordinary skilled persons in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0030] As shown in Figures 1 to 6 The utility model provides a kind of automatic installation device for footboard shaft PU cover, including footboard shaft 1, fixed in the lateral arrangement of footboard 2 of the outer circle surface of footboard shaft 1, and the upper layer PU cover 4 and lower layer PU cover 3 of clamping setting on the upper and lower surfaces of footboard 2;Wherein, 12 locking round holes 5 are arranged in the inside of footboard 2 at equal distances, and U-shaped bolt 6 is arranged in every two rows of locking round holes 5 and transversely penetrates footboard 2;
[0031] Specifically, the upper surface of the lower layer PU cover 3 of the embodiment is fixed with 12 plug-in snap components at equal distances, and the lower surface of the upper layer PU cover 4 is fixed with 12 plug-in snap ring components at equal distances, the plug-in snap component is inserted into the inside of the plug-in snap ring component, and the plug-in snap ring component and the plug-in snap component are located in the inner cavity of locking round hole 5.
[0032] More specifically, the plug-in snap component includes base 10, snap 11 fixed on the upper surface of base 10 in annular array, and fixed plate 12 fixed on the central position of the top surface of base 10 between snap 11.
[0033] Preferably, the U-shaped latch 6 of the embodiment is in a U shape as a whole, and both ends of the U-shaped latch 6 transversely pass through the locking round hole 5, wherein the pedal 2 and the inside of the locking round hole 5 are both provided with a hole slot for the U-shaped latch 6 to transversely pass through, and the inner cavity of the hole slot and the outer ring of the U-shaped latch 6 are in a tightly coupled state.
[0034] The outer diameter of the clamping pipe 7 is consistent with the inner diameter of the locking round hole 5, and the clamping pipe 7 is internally provided with an insertion hole 9 for the U-shaped latch 6 to transversely pass through, the insertion hole 9 is in the same horizontal line as the pedal 2 and the locking round hole 5, and the hole diameters are consistent. The inside of the fixed plate 12 is provided with a through hole for the U-shaped latch 6 to pass through and insert, and the through hole is in the same horizontal line as the insertion hole 9 inside the clamping pipe 7 and the hole diameters are consistent.
[0035] The side of the base 10 away from the buckles 11 is fixedly connected with the upper surface of the lower PU sleeve 3. The outer surface of the buckles 11 is fixedly provided with a clamping block capable of being clamped into the annular clamping slot 8, and the buckles 11 have a gap of 1mm-2.5mm between each other, which is used for the buckles 11 to be inserted into the space with contraction inside the clamping pipe 7.
[0036] The side of the lower PU sleeve 3 and the upper PU sleeve 4 close to each other is provided with a groove matched with the upper and lower surfaces of the pedal 2, and the side of the lower PU sleeve 3 and the upper PU sleeve 4 away from each other is linearly and equidistantly fixedly provided with a plurality of rubber protrusions.
[0037] According to the above-mentioned preferred technical scheme, the working process of the technical scheme is described:
[0038] When either the lower PU sleeve 3 or the upper PU sleeve 4 is in the upper or lower position, by making the side of the lower PU sleeve 3 and the upper PU sleeve 4 with the plug-in assembly face the pedal 2, after synchronously inserting the clamping pipe 7 on the lower surface of the upper PU sleeve 4 into the inside of the locking round hole 5, the outer ring surface of the clamping pipe 7 contacts the inner cavity surface of the locking round hole 5, and at the same time, the lower surface of the upper PU sleeve 4 contacts the surface of the pedal 2. Then, the buckles 11 on the upper surface of the lower PU sleeve 3 are inserted into the inside of the locking round hole 5, and at the same time, the buckles 11 are inserted into the inner cavity of the clamping pipe 7. After the buckles 11 and the annular clamping slot 8 of the inner cavity of the clamping pipe 7 are mutually inserted and clamped, the U-shaped latch 6 is transversely inserted into the pedal 2, the locking round hole 5, the clamping pipe 7 and the through hole of the fixed plate 12, thereby realizing the stable connection of the lower PU sleeve 3 and the upper PU sleeve 4 on the upper and lower surfaces of the pedal 2.
[0039] It should be noted that the above specific embodiments are only the preferred embodiments of the utility model and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent replacements, changes and the like can be made to the utility model. However, as long as these changes do not deviate from the spirit of the utility model, they should be within the protection scope of the utility model. In addition, some terms used in the application specification and claims are not limited, but only for the convenience of description.
Claims
1. An automatic installation device for a foot pedal shaft PU sleeve, characterized in that: it comprises a foot pedal shaft (1), a pedal (2) fixed on the outer surface of the foot pedal shaft (1) in a transverse arrangement, and an upper layer PU sleeve (4) and a lower layer PU sleeve (3) clamped on the upper and lower surfaces of the pedal (2); wherein 12 locking round holes (5) are arranged equidistantly in the interior of the pedal (2), and a U-shaped bolt (6) transversely penetrating the pedal (2) is arranged in every two rows of the locking round holes (5); the upper surface of the lower layer PU sleeve (3) is fixed with 12 plug-in buckle assemblies arranged equidistantly, the lower surface of the upper layer PU sleeve (4) is fixed with 12 plug-in ring assemblies arranged equidistantly, and the plug-in buckle assemblies are inserted into the plug-in ring assemblies, and both the plug-in ring assemblies and the plug-in buckle assemblies are located in the inner cavity of the locking round holes (5); the plug-in buckle assembly comprises a base (10), a buckle (11) arranged in a ring array and fixed on the upper surface of the base (10), and a fixed plate (12) fixed on the central position of the top surface of the base (10) between the buckles (11); the plug-in ring assembly comprises a clamping pipe (7), and a ring-shaped clamping groove (8) is formed on the side wall of the inner cavity of the clamping pipe (7) for clamping the buckle (11). The U-shaped bolt (6) is in a U shape, and the two ends of the U-shaped bolt (6) transversely penetrate the locking round holes (5), wherein the pedal (2) and the interior of the locking round holes (5) are both provided with hole grooves for transverse penetration of the U-shaped bolt (6), and the inner cavity of the hole grooves and the outer circle of the U-shaped bolt (6) are in a tightly coupled state.
2. The automatic mounting device for the foot pedal shaft PU sleeve according to claim 1, characterized in that, The outer diameter of the clamping pipe (7) is consistent with the inner diameter of the locking round hole (5), the clamping pipe (7) is provided with a plug hole (9) for transverse penetration of the U-shaped bolt (6) in the interior, the plug hole (9) is on the same horizontal line with the locking round hole (5) of the pedal (2), and the hole diameters are consistent.
3. The automatic mounting device for the foot pedal shaft PU sleeve according to claim 1, characterized in that, A through hole is formed in the interior of the fixed plate (12) for penetration and insertion of the U-shaped bolt (6), and the through hole is on the same horizontal line with the plug hole (9) in the interior of the clamping pipe (7) and has a consistent hole diameter.
4. The automatic mounting device for the foot pedal shaft PU sleeve according to claim 1, characterized in that, The base (10) is fixedly connected to the upper surface of the lower layer PU sleeve (3) on the side away from the buckle (11).
5. The automatic mounting device for footrest shaft PU sleeve according to claim 1, characterized in that, The outer surface of the buckle (11) is fixed with a clamping block capable of being clamped into the interior of the ring-shaped clamping groove (8), and the buckles (11) have a gap of 1mm-2.5mm between each other, which is used for the buckles (11) to be inserted into the space with contraction in the interior of the clamping pipe (7).
6. The automatic mounting device for footrest shaft PU sleeve according to claim 1, characterized in that, The side of the lower layer PU sleeve (3) and the upper layer PU sleeve (4) close to each other is provided with a groove matched with the upper and lower surfaces of the pedal (2), and the sides of the lower layer PU sleeve (3) and the upper layer PU sleeve (4) away from each other are both linearly and equidistantly fixed with a plurality of rubber protrusions.
7. The automatic mounting device for footrest shaft PU sleeve according to claim 1, characterized in that,