Rolling wheel with adjustable pressure

Abstract

The utility model relates to the field of rolling wheels, in particular to a pressure-adjustable rolling wheel which comprises a limiting assembly, a pressure adjusting assembly and a rolling assembly, and the rolling assembly is connected with the pressure adjusting assembly. The end, close to the rolling assembly, of the limiting assembly is a limiting end. The pressure regulating assembly comprises a reset piece; a reset piece is arranged between the limiting assembly and the rolling assembly, and the limiting end and the rolling assembly are connected in a relatively movable mode. When the limiting end is far away from the rolling assembly in the axial direction of the reset piece, the rolling assembly can roll relative to the pressure adjusting assembly. Pressure needed by deformation of the reset piece is matched with pressure needed during rolling, the position relation between the limiting end and the rolling assembly is controlled through the deformation quantity of the reset piece, rolling limitation on the rolling assembly is kept or relieved, and rolling pressure during rolling is controllable and adjustable. Therefore, it is ensured that rolling pressure meets the product quality requirement during manual operation, and the product yield is increased.

Description

Technical Field

[0001] The utility model relates to the field of rolling wheels, in particular to a rolling wheel with adjustable pressure. Background Art

[0002] Many existing automotive glass accessories require 3M pressure-sensitive adhesives for bonding. In addition to the validity period of the primer activator, the pressure on each unit area (mm2) during installation must be between 2 and 5 kg to achieve maximum bonding performance. Most of the current accessories have a large variety and small quantity, so there is basically no special equipment to control the pressure when the accessories are bonded. Generally, rollers are used manually to roll. The existing rolling wheels are only a handle and a bearing roller, so the pressure of the roller needs to be manually controlled. The yield of the product is affected by the rolling experience of the operator, and stable quality cannot be guaranteed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pressure-adjustable rolling wheel with controllable and adjustable pressure, which can avoid the problem of low product yield caused by manual control of the rolling pressure.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a pressure-adjustable rolling wheel, comprising a limit assembly, a pressure regulating assembly and a rolling assembly, wherein the rolling assembly is connected to the pressure regulating assembly; the end of the limit assembly close to the rolling assembly is the limit end;

[0005] The voltage regulating assembly includes a reset member;

[0006] A reset member is provided between the limit assembly and the rolling assembly, and the limit end is connected to the rolling assembly so as to be relatively movably connected;

[0007] When the limiting end is away from the rolling assembly in the axial direction of the reset member, the rolling assembly can roll relative to the pressure regulating assembly.

[0008] Furthermore, one end of the reset member connected to the limiting assembly is movably arranged in the axial direction of the reset member.

[0009] Furthermore, an adjusting bolt is provided at one end of the reset member connected to the limiting assembly, and the limiting assembly is threadedly connected to the adjusting bolt.

[0010] Furthermore, the pressure regulating assembly also includes a piston, the piston is connected to the rolling assembly, and the piston is connected to the limiting assembly so as to be relatively movably connected.

[0011] Furthermore, the rolling assembly includes a roller, and a plurality of limiting grooves arranged at intervals along its circumference are provided on the axial side wall of the roller; when the limiting end is engaged with the limiting groove, the limiting assembly limits the rolling of the rolling assembly relative to the pressure regulating assembly.

[0012] Furthermore, both axial side walls of the roller are provided with limiting grooves, and each limiting end is provided corresponding to the two axial side walls of the roller.

[0013] Furthermore, a rotation groove is provided on the axial side wall of the roller, a plurality of the limiting grooves are arranged around the outer side of the rotation groove and are connected to the rotation groove, and the limiting end can move between the rotation groove and the limiting groove.

[0014] Furthermore, the pressure regulating assembly also includes a connecting piece, and both sides of the rolling assembly are respectively connected to the connecting pieces. The pressure regulating assembly is movable relative to the connecting piece in the axial direction of the resetting piece and a resetting piece is connected between the pressure regulating assembly and the connecting piece.

[0015] Furthermore, the connecting member is provided with a limiting waist hole, the length direction of which is parallel to the axial direction of the reset member; and the limiting end is inserted into the limiting waist hole.

[0016] Furthermore, the limiting assembly includes a moving part, a limiting part and a fastening screw, the reset part is arranged between the moving part and the rolling assembly, the moving part is provided with a mounting hole, one end of the limiting part is passed through the mounting hole; the other end of the limiting part is inserted into the rolling assembly, and the limiting end is located on the other end of the limiting part; one side of the mounting hole is connected to a fixing hole, the fastening screw is locked in the fixing hole and against the limiting part.

[0017] The beneficial effect of the utility model is that the pressure required for the deformation of the reset member matches the pressure required for rolling, and the positional relationship between the limit end and the rolling assembly is controlled by the deformation of the reset member to maintain or release the rolling restriction of the rolling assembly, so that the rolling pressure during rolling can be controlled and adjusted, thereby ensuring that the rolling pressure meets the product quality requirements during manual operation and improving the product yield. When the user operates the downward rolling assembly, when the pressure applied to the rolling assembly meets the pressure required for the rolling process, the reset member deforms so that the limit assembly can move relative to the rolling assembly, thereby making the limit end of the limit assembly away from the rolling assembly, releasing its restriction on the rolling of the rolling assembly, and rolling that meets a certain pressure can be achieved; on the contrary, when the user operates the downward rolling assembly, when the pressure applied to the rolling assembly does not meet the pressure required for the rolling process, the deformation generated by the reset member is not enough to make the limit assembly far enough away from the rolling assembly to release the rolling restriction of the rolling assembly, and thus feedback makes the user need to take further measures to increase the downward pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a pressure-adjustable rolling wheel according to a specific implementation mode of the utility model;

[0019] Figure 2 A cross-sectional view of a pressure-adjustable rolling wheel according to a specific embodiment of the utility model;

[0020] Figure 3 It is a schematic structural diagram of the coordination of the limiting groove, the rotating groove and the limiting member of the pressure-adjustable rolling wheel in a specific implementation manner of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the cooperation between the connecting member and the limiting member of the pressure-adjustable rolling wheel according to a specific implementation manner of the utility model.

[0022] Description of labels:

[0023] 1. Limiting assembly; 11. Moving part; 12. Limiting part; 13. Fastening screw;

[0024] 2. Pressure regulating assembly; 21. Reset member; 22. Adjusting bolt; 23. Piston; 24. Connecting member; 25. Limiting waist hole;

[0025] 3. Rolling assembly; 31. Roller; 32. Rolling shaft; 33. Roller sleeve; 34. Bearing; 35. Retaining spring; 36. Limiting groove; 37. Rotating groove. DETAILED DESCRIPTION

[0026] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0027] Please refer to Figures 1 to 4 A pressure-adjustable rolling wheel comprises a limit assembly 1, a pressure regulating assembly 2 and a rolling assembly 3, wherein the rolling assembly 3 is connected to the pressure regulating assembly 2; an end of the limit assembly 1 close to the rolling assembly 3 is a limit end;

[0028] The voltage regulating assembly 2 includes a reset member 21;

[0029] A reset member 21 is provided between the position limiting assembly 1 and the rolling assembly 3, and the position limiting end is connected to the rolling assembly 3 so as to be relatively movable;

[0030] When the limiting end is away from the rolling assembly 3 in the axial direction of the reset member 21 , the rolling assembly 3 can roll relative to the pressure regulating assembly 2 .

[0031] From the above description, it can be seen that the beneficial effects of the utility model are: the pressure required for the deformation of the reset member 21 is used to match the pressure required for rolling, and the deformation amount of the reset member 21 is used to control the positional relationship between the limit end and the rolling assembly 3 to maintain or release the rolling restriction of the rolling assembly 3, so as to achieve controllable and adjustable rolling pressure during rolling, thereby ensuring that the rolling pressure during manual operation meets the product quality requirements and improves the product yield. When the user operates to press down the rolling component 3, if the pressure applied to the rolling component 3 meets the pressure required for the rolling process, the reset member 21 is deformed so that the limit component 1 can move relative to the rolling component 3, thereby making the limit end of the limit component 1 away from the rolling component 3, thereby releasing the restriction on the rolling of the rolling component 3, and realizing rolling that meets a certain pressure; conversely, when the user operates to press down the rolling component 3, if the pressure applied to the rolling component 3 does not meet the pressure required for the rolling process, the deformation produced by the reset member 21 is not enough to make the limit component 1 far enough away from the rolling component 3 to release the restriction on the rolling of the rolling component 3, thereby feedback requires the user to take measures to further increase the pressing pressure.

[0032] Furthermore, one end of the reset member 21 connected to the limiting assembly 1 is movably arranged in the axial direction of the reset member 21 .

[0033] From the above description, it can be seen that the degree of rebound of the reset member 21 can be adjusted by the movable setting of one end connected to the limit assembly 1; the reset member 21, taking a spring as an example, can change its elastic force when its length is shortened or extended, thereby adjusting the deformation amount when subjected to pressure and stress, so as to produce the same deformation amount under different set pressures to release the rolling restriction of the limit end on the rolling assembly 3, and match the different pressure requirements required for the rolling process.

[0034] Furthermore, an adjusting bolt is provided at one end of the reset member 21 connected to the limiting assembly 1, and the limiting assembly 1 is threadedly connected to the adjusting bolt.

[0035] From the above description, it can be seen that by threading the adjusting bolt at one end of the reset member 21 with the limit assembly 1, the length of the reset member 21 can be adjusted by rotating the adjusting bolt, and the rebound degree of the reset member 21 under different pressures can be adjusted to meet the control of the movement of the limit end.

[0036] Furthermore, the pressure regulating assembly 2 further comprises a piston 23 , wherein the piston 23 is connected to the rolling assembly 3 , and the piston 23 is connected to the limiting assembly 1 so as to be relatively movably connected.

[0037] It can be seen from the above description that the piston 23 can be used as a guiding structure when the limiting assembly 1 moves, ensuring that the limiting end moves accurately in a predetermined direction, and maintaining or releasing the rolling restriction on the rolling assembly 3.

[0038] Furthermore, the rolling assembly 3 includes a roller 31 , and a plurality of limiting grooves 36 arranged at intervals along its circumference are provided on the axial side wall of the roller 31 ; when the limiting end is engaged with the limiting groove 36 , the limiting assembly 1 limits the rolling of the rolling assembly 3 relative to the pressure regulating assembly 2 .

[0039] It can be seen from the above description that the multiple limit grooves 36 set on the axial side wall of the roller 31 serve as a matching structure to limit the rolling of the roller 31. When the limit end moves to any of the limit grooves 36, the rotation of the roller 31 is limited by the limit end; when the limit end moves out of the limit groove 36, the roller 31 can roll freely.

[0040] Furthermore, limiting grooves 36 are provided on both axial side walls of the roller 31 , and one limiting end is provided corresponding to each of the two axial side walls of the roller 31 .

[0041] It can be seen from the above description that the limiting grooves 36 and the limiting ends symmetrically arranged on both sides of the roller 31 ensure that the limiting ends restrict the roller 31 from being fixed, and the symmetrical design also improves the uniformity and stability of the force applied to the roller 31 when it rolls.

[0042] Furthermore, a rotation groove 37 is provided on the axial side wall of the roller 31 , and a plurality of limit grooves 36 are arranged around the outer side of the rotation groove 37 and communicated with the rotation groove 37 , and the limit end can move between the rotation groove 37 and the limit groove 36 .

[0043] From the above description, it can be seen that the rotation groove 37 is connected to each limit groove 36 and serves as a limit end at the displacement position when the rolling restriction of the rolling component is released; at the same time, the surrounding arrangement of the rotation groove 37 and the limit groove 36 can prevent the limit end from interfering with the roller 31 when it rolls.

[0044] Furthermore, the pressure regulating assembly 2 also includes a connecting member 24, and both sides of the rolling assembly 3 are rotatably connected to the connecting member 24 respectively. The limiting assembly 1 is movable relative to the connecting member 24 in the axial direction of the reset member 21 and a reset member 21 is connected between the connecting member 24.

[0045] From the above description, it can be seen that through the connection between the connecting member 24 and the rolling assembly 3, a reset member 21 is set between the connecting member 24 and the limit assembly 1, so as to realize the relative movement of the limit assembly 1 and the rolling assembly 3 and to cooperate with the limit end to regulate the downward pressure of the rolling assembly 3.

[0046] Furthermore, a limiting waist hole 25 is provided on the connecting member 24 , and the length direction of the limiting waist hole 25 is parallel to the axial direction of the reset member 21 ; and the limiting end is penetrated in the limiting waist hole 25 .

[0047] As can be seen from the above description, the upper and lower movement limits of the limit end can be limited and the movement of the limit end can be guided by the matching of the limit waist hole 25 on the connecting member 24 and the limit end. Specifically, the upper end and the lower end of the limit waist hole 25 correspond to the position where the limit end maintains and releases the rolling restriction of the rolling assembly 3.

[0048] Furthermore, the limiting component 1 includes a moving part 11, a limiting part 12 and a fastening screw 13, the reset part 21 is arranged between the moving part 11 and the rolling component 3, the moving part 11 is provided with a mounting hole, one end of the limiting part 12 is passed through the mounting hole; the other end of the limiting part 12 is inserted into the rolling component 3, and the limiting end is located on the other end of the limiting part 12; one side of the mounting hole is connected to a fixing hole, the fastening screw 13 is locked in the fixing hole and against the limiting part 12.

[0049] From the above description, it can be seen that a reset member 21 is provided between the movable member 11 and the rolling assembly 3, which cooperates to realize the movement of the movable member 11 relative to the rolling assembly 3 to a certain distance under a certain pressure; and the mounting hole on the movable member 11 cooperates with the limit member 12 to realize the installation of the limit member 12; and then the limit member 12 is fixed by laterally locking it through the fastening screw 13.

[0050] Embodiment 1:

[0051] Application scenario: In the production process of existing automotive glass accessories and other products that need to be bonded with 3M pressure-sensitive adhesive, there is a certain requirement for the pressure per unit area (mm2) of 3M pressure-sensitive adhesive during installation, which is required to be between 2 and 5 kg to achieve the maximum bonding performance. At present, for the small-scale production of accessory products, it is generally manually rolled using a simple roller 31, and the pressure of the roller 31 during rolling needs to be manually controlled to achieve good bonding performance; the yield of the product is affected by the rolling experience of the operator, and stable quality cannot be guaranteed.

[0052] like Figures 1 to 4 As shown, the pressure-adjustable rolling wheel of this embodiment includes a rolling component 3, a pressure regulating component 2 and a limiting component 1.

[0053] like Figure 2 and Figure 3As shown, the rolling assembly 3 includes a roller 31, a roller shaft 31, a roller sleeve 33, a bearing 34, a sleeve and a retaining spring 35. The roller sleeve 33 is arranged on the roller shaft 31, a bearing 34 is arranged between the roller 31 and the roller shaft 31, retaining springs 35 for fixing the bearing 34 are arranged on both sides of the bearing 34, sleeves are arranged on both sides of the roller shaft 31, and a roller sleeve 33 is also arranged on the outside of the roller 31. The two side walls of the roller 31 are provided with a rotation groove 37 and a limit groove 36, wherein the rotation groove 37 is a circular ring structure concentric with the side wall of the roller 31, and a plurality of limit grooves 36 are arranged in sequence along the length direction of the rotation groove 37.

[0054] like Figure 2 and Figure 4 As shown, the pressure regulating assembly 2 includes a piston 23, a reset member 21 and a connecting member 24. The connecting member 24 is U-shaped, and its two ends are rotatably connected to the two sides of the roller 31 axis respectively; the piston 23 is arranged on the upper side of the connecting member 24, and the reset member 21 is connected to the upper side of the piston 23; limiting waist holes 25 are arranged on both sides of the connecting member 24, and the length direction of the limiting waist holes 25 is parallel to the length direction of the piston 23.

[0055] like Figure 1 and Figure 2 As shown, the limiting assembly 1 includes a moving member 11 and a limiting member 12. The moving member 11 is a handle structure for holding, which is sleeved with the piston 23, and the piston 23 serves as a moving guide structure. In addition, the piston 23 can be eliminated, and only the movement of the entire rolling wheel is limited so that it can only move along the length direction of the original piston 23. For example, when the material to be rolled is transmitted via the conveying structure, the rolling wheel can only press it down without pushing the rolling wheel. Such directional downward pressure can eliminate the guide design of the piston 23.

[0056] A reset member 21 is connected between the upper end of the moving member 11 and the piston 23, and the reset member 21 can be optionally a spring. The reset member 21 is arranged with the U-shaped connecting member 24 near the lower end of the moving member 11 to form a U-shaped structure with two sides abutting against the outside of the connecting member 24. A limiting member 12 is extended toward the roller 31 on the U-shaped structure. The limiting member 12 passes through the limiting waist hole 25 of the connecting plate, and its end is located in the rotation groove 37 and the limiting groove 36 of the side wall of the roller 31. By the movement and switching of the limiting member 12 between the rotation groove 37 and the limiting groove 36, the rolling restriction of the roller 31 is respectively released and maintained. With respect to the design of the rotation groove 37 and the limiting groove 36, the present embodiment provides a form in which the side wall of the roller 31 is arranged, and correspondingly, it can also be arranged on the rolling shaft 32 or the extension structure of the rolling shaft 32.

[0057] In this embodiment, the movable member 11 moves up and down, and the corresponding limit member 12 moves up and down to adjust the state of the roller 31. In other feasible implementation modes, the movable member 11 can also be moved up and down, and combined with linkage structures such as connecting rods and circuit trigger mechanisms, the limit member 12 can be moved left and right or in other directions close to or away from the side wall of the roller 31 to achieve rolling restriction of the roller 31. In this case, the yielding design of the rotating groove 37 can be cancelled; in other feasible implementation modes, the cooperation of the rolling restriction of the limit member 12 and the side wall of the roller 31 can also adopt a clutch design similar to a brake disc, and the rotation of the roller 31 is restricted by the limit member 12 pressing against the side wall of the roller 31.

[0058] In the above design, the limit member 12 is pressed against the end of the limit waist hole 25, the limit groove 36 and the rotation groove 37 after movement. In order to avoid damage caused by repeated collisions between components, a buffer layer can be set in the limit member 12 and the limit waist hole 25, the limit groove 36 and the rotation groove 37.

[0059] The working principle of the utility model is as follows: the user holds the moving part 11 and presses down toward the material to be rolled. When the pressing pressure meets the preset pressure, the reset part 21 is pressed to produce a certain deformation, thereby causing the limiter 12 to shift, so that the limiter 12 falls from the limiter groove 36 to the moving groove. This is the rolling process with the appropriate pressure. Under this pressing pressure, the user can push the entire structure to move, and the roller 31 rolls forward to press the product. After the pressing pressure is released, under the restoring action of the reset part 21, the limiter 12 moves up and presses into the adjacent limiter groove 36 to limit the rolling of the roller 31.

[0060] Embodiment 2:

[0061] The difference between the second embodiment and the first embodiment is that: Figure 2 As shown, the limit assembly 1 also includes a fastening screw 13, a mounting hole is provided on the moving member 11, and the limit member 12 is inserted into the mounting hole; one side of the mounting hole is connected to a fixing hole, and the fastening screw 13 is locked in the fixing hole and abuts against the limit member 12. Through the locking and cooperation of the fastening screw 13, the limit member 12 can be quickly disassembled, assembled, and replaced.

[0062] Embodiment three:

[0063] The difference between the third embodiment and the first embodiment is that: Figure 2As described above, the upper end of the moving member 11 is provided with an internal threaded hole, and the end of the reset member 21 connected to the upper end of the moving member 11 is provided with an adjusting bolt 22. By adjusting the bolt 22 and the internal threaded hole, the length of the reset member 21 can be adjusted, and then the set pressure can be adjusted. Before use, the length between the reset member 21 and the moving member 11 and the piston 23 is changed by rotating the adjusting bolt 22, and the compressive deformation of the reset member 21 is adjusted and arranged, so as to adapt to different rolling pressures.

[0064] To sum up, the pressure-adjustable rolling wheel provided by the utility model matches the pressure required for rolling by the pressure required for the deformation of the reset part, and controls the positional relationship between the limit end and the rolling assembly by the deformation amount of the reset part to maintain or release the rolling restriction of the rolling assembly, thereby achieving controllable and adjustable rolling pressure during rolling, thereby ensuring that the rolling pressure during manual operation meets the product quality requirements and improves the product yield. When the user operates to press the rolling assembly down, if the pressure applied to the rolling assembly meets the pressure required for the rolling process, the reset member is deformed so that the limit assembly can move relative to the rolling assembly, thereby making the limit end of the limit assembly move away from the rolling assembly, thereby releasing the restriction on the rolling of the rolling assembly, and realizing rolling that meets a certain pressure; conversely, when the user operates to press the rolling assembly down, if the pressure applied to the rolling assembly does not meet the pressure required for the rolling process, the deformation produced by the reset member is not enough to make the limit assembly move away enough from the rolling assembly to release the rolling restriction on the rolling assembly, and thus feedback requires the user to take measures to further increase the downward pressure; the degree of resilience of the reset member can be adjusted by the movable setting at one end of the reset member connected to the limit assembly; the adjusting bolt at one end of the reset member is threadedly connected to the limit assembly to rotate The length of the reset part is adjusted by means of a movable adjustment bolt, and the degree of rebound of the reset part under different pressures is adjusted to meet the control of the movement of the limit end; a piston is set to ensure that the limit end moves accurately in a predetermined direction to maintain or release the rolling restriction of the rolling component; a plurality of limit grooves are set on the side wall of the roller as a matching structure to limit the rolling of the roller; the limit grooves and limit ends are symmetrically arranged on both sides of the roller to ensure the restriction of the roller fixation by the limit end; the rotating groove connects the various limit grooves and serves as the displacement position of the limit end when the rolling restriction of the rolling component is released, while avoiding interference of the limit part; the limit waist hole on the connecting part is matched with the limit end, so that the upper and lower movement limits of the limit end can be limited and the movement of the limit end can be guided; the mounting hole, fastening screw and limit part on the moving part cooperate to realize the rapid installation of the limit part.

[0065] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A pressure-adjustable rolling wheel, characterized in that: It includes a limit assembly, a pressure regulating assembly and a rolling assembly, wherein the rolling assembly is connected to the pressure regulating assembly; One end of the limiting component close to the rolling component is the limiting end; The voltage regulating assembly includes a reset member; A reset member is provided between the limit assembly and the rolling assembly, and the limit end is connected to the rolling assembly so as to be relatively movably connected; When the limiting end is away from the rolling assembly in the axial direction of the reset member, the rolling assembly can roll relative to the pressure regulating assembly.

2. The pressure-adjustable rolling wheel according to claim 1, characterized in that: One end of the reset member connected to the limiting assembly is movably arranged in the axial direction of the reset member.

3. The pressure-adjustable rolling wheel according to claim 2, characterized in that: An adjusting bolt is arranged at one end of the reset member connected with the limiting assembly, and the limiting assembly is threadedly connected with the adjusting bolt.

4. The pressure-adjustable rolling wheel according to claim 1 or 3, characterized in that: The pressure regulating assembly further comprises a piston, the piston is connected to the rolling assembly, and the piston is connected to the limiting assembly so as to be relatively movably connected.

5. The pressure-adjustable rolling wheel according to claim 1, characterized in that: The rolling assembly comprises a roller, and a plurality of limiting grooves arranged at intervals along the circumference of the roller are provided on the axial side wall of the roller; when the limiting end is engaged with the limiting groove, the limiting assembly limits the rolling of the rolling assembly relative to the pressure regulating assembly.

6. The pressure-adjustable rolling wheel according to claim 5, characterized in that: The two axial side walls of the roller are both provided with limiting grooves, and the limiting end is respectively provided with one on the two axial side walls corresponding to the roller.

7. The pressure-adjustable rolling wheel according to claim 5, characterized in that: A rotation groove is also provided on the axial side wall of the roller, a plurality of limit grooves are arranged around the outer side of the rotation groove and are connected with the rotation groove, and the limit end can move between the rotation groove and the limit groove.

8. The pressure-adjustable rolling wheel according to claim 1, characterized in that: The pressure regulating assembly also includes a connecting piece, the rolling assembly is rotatably connected to the connecting piece, the limiting assembly is movable relative to the connecting piece in the axial direction of the resetting piece and a resetting piece is connected between the limiting assembly and the connecting piece.

9. The pressure-adjustable rolling wheel according to claim 8, characterized in that: The connecting piece is provided with a limiting waist hole, the length direction of which is parallel to the axial direction of the reset piece; and the limiting end is penetrated in the limiting waist hole.

10. The pressure-adjustable rolling wheel according to claim 1, characterized in that: The limiting assembly includes a moving part, a limiting part and a fastening screw, the reset part is arranged between the moving part and the rolling assembly, the moving part is provided with a mounting hole, one end of the limiting part is passed through the mounting hole, the other end of the limiting part is inserted into the rolling assembly, and the limiting end is located on the other end of the limiting part; one side of the mounting hole is connected to a fixing hole, the fastening screw is locked in the fixing hole and abuts against the limiting part.

Images