Silent press brake double row caster

Abstract

The utility model discloses a mute press formula brake double row caster, related to brake caster technical field, this caster includes support and two wheel cores respectively arranged in the both sides of support, and the lateral upper area of support is passed through and is equipped with the assembly slot, is equipped with the brake assembly for realizing the caster brake function in the assembly slot, and the brake assembly includes the self -lock button of detachable in the assembly slot, and the self -lock button mainly is by the button shell of the top for the opening and the button block of elastic lifting in button shell, and the outer wall of support is equipped with the rectangular hole of communicating with the inboard of assembly slot, and the rectangular hole is worn and is reduced and is detachably connected with the button block top end press pedal, the utility model discloses through the detachable connection of press pedal and button block's setting, the detachable setting of brake assembly in the assembly slot and the layout design of press pedal corresponding assembly in the lateral upper of support, realizes multiple use advantage.

Description

Technical Field

[0001] This utility model relates to the field of brake caster technology, specifically to a silent push-button brake double-row caster. Background Technology

[0002] Double-row casters, widely used in furniture, logistics equipment, medical devices, and other fields, directly impact the overall user experience due to their ease of use, stability, and quiet operation. As people's demands for comfort in their living and working environments continue to rise, and as various devices upgrade their performance requirements for moving parts, existing double-row casters are gradually revealing numerous issues that need improvement.

[0003] In terms of braking structure, the braking mechanism of traditional double-row casters mostly adopts an integrated design, which is complicated in assembly process and requires high precision between parts, resulting in low installation efficiency and inconvenient disassembly and maintenance. At the same time, the traditional brake pedal is not positioned reasonably, mostly located on the side or below the wheel, requiring a large force to operate, making it more strenuous to use and resulting in a poor user experience. Utility Model Content

[0004] To solve the above-mentioned technical problems, a silent push-button brake double-row caster is provided, which solves the problems existing in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a silent press-type brake double-row caster, the caster includes a bracket and two wheel cores respectively disposed on both sides of the bracket, and an assembly groove is provided through the upper side area of ​​the bracket, and a brake component for realizing the caster braking function is provided in the assembly groove;

[0006] The brake assembly includes a self-locking button detachable from the mounting slot. The self-locking button mainly consists of a button housing with an open top and a button block that can be elastically raised and lowered within the button housing. The outer wall of the bracket has a rectangular hole that communicates with the inner side of the mounting slot. A pressing pedal that is detachably connected to the top of the button block is inserted into the rectangular hole.

[0007] Preferably, the inner walls on both sides of the assembly groove are provided with corresponding slots, and the outer wall of the button housing is provided with a flexible insert that is adapted to each slot. The flexible insert can be elastically fitted into the corresponding slot.

[0008] Preferably, a stop block is fixedly provided on the inner wall of the bottom end of the assembly groove, and the stop block abuts against the side wall of the button housing.

[0009] Preferably, the bottom end of the pressing pedal is provided with a movable groove, and two hook-shaped levers are symmetrically arranged in the movable groove. The two levers can slide elastically in the lateral direction, and the hook end of the lever is provided with an inclined guide wall. The inner wall of the top of the button block is provided with a locking cavity, and the top of the button block is provided with a through-slot groove that communicates with the inside of the locking cavity. The width of the through-slot groove is adapted to the thickness of the hook end of the lever.

[0010] Preferably, the two sides of the pressing pedal are respectively provided with compression rods that can move laterally, and the inner ends of the two compression rods are respectively fixed to the outer side walls of the two clamping rods.

[0011] Compared with the prior art, the advantages of this utility model are as follows: Multiple advantages are achieved through the detachable connection between the pressing pedal and the button block, the detachable arrangement of the brake assembly within the mounting slot, and the layout design where the pressing pedal is correspondingly mounted on the upper side of the bracket.

[0012] On the one hand, the installation position of the pressing pedal on the upper side is more ergonomic, so there is no need to bend over or exert effort to reach it when operating. In addition, the structure of the pressing pedal protruding from the outer wall of the bracket increases the force-bearing area. Compared with the traditional brake operation position, the force is applied more smoothly and with less effort. At the same time, this position is intuitive and easy to find, and there is no need to deliberately position it when using it, further improving the convenience of operation.

[0013] On the other hand, the detachable structure enables modular assembly and maintenance of components. When the pedal is worn, damaged, or needs to be replaced with a different size / shape to suit different usage scenarios, the pedal can be directly removed through the rectangular hole for replacement without disassembling the entire brake assembly. If the internal parts of the brake assembly need to be repaired, they can also be removed from the assembly slot as a whole without disassembling the bracket and wheel core structure, reducing maintenance difficulty and cost and improving the flexibility of component replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the separation structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the support structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the self-locking button structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the movable groove of this utility model.

[0019] The numbers on the map are:

[0020] 1. Bracket; 2. Support shaft; 3. Slotted bearing; 4. Wheel core; 5. Assembly slot; 6. Button housing; 7. Button block; 8. Movable slot; 9. Limiting rod; 10. Limiting slot; 11. Pressing pedal; 12. Locking rod; 13. Locking cavity; 14. Movable slot; 15. Slide rod; 16. Pressing rod; 17. Flexible insert; 18. Insertion groove; 19. Stop block. Detailed Implementation

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0022] Reference Figure 1-5 As shown, a silent push-button brake double-row caster includes a bracket 1 and two wheel cores 4 respectively disposed on both sides of the bracket 1;

[0023] A support shaft 2 is fixedly installed through the center of the bracket 1. Both ends of the support shaft 2 are rotatably fitted with slotted bearings 3, and the wheel core 4 is fitted on the outside of the slotted bearings 3.

[0024] The outer ring of the slotted bearing 3 is provided with several connecting grooves at intervals. The inner wall of the wheel core 4 is provided with a connecting part that matches each connecting groove. The connecting part is embedded in the corresponding connecting groove to achieve a tight connection between the wheel core 4 and the slotted bearing 3.

[0025] By setting the slotted bearing 3, the slotted design of the slotted bearing 3 allows its outer ring connecting groove to form an embedded fit with the inner wall connecting part of the wheel core 4, so that the two are tightly connected. Moreover, the wheel core 4 can rely on the rotation characteristics of the slotted bearing 3 to smoothly link with the support shaft 2, making the caster rotate more smoothly and reducing the noise generated by component shaking and friction from the root, thus achieving a silent effect.

[0026] Furthermore, referring to Figure 2 As shown, it is worth noting that an assembly groove 5 is provided through the upper side area of ​​the bracket 1, and a brake assembly for realizing the caster braking function is provided in the assembly groove 5.

[0027] The brake assembly includes a self-locking button that can be detached from the mounting slot 5. The self-locking button mainly consists of a button housing 6 with an open top and a button block 7 that can be elastically raised and lowered within the button housing 6. Movable slots 8 extending along the height direction are provided on both sides of the button housing 6. A limiting rod 9 is horizontally fixed through the inner wall of the button block 7. The two ends of the limiting rod 9 are respectively slidably inserted into the movable slots 8 on the corresponding sides.

[0028] The wheel core 4 has an annular groove on one side of the end face facing the bracket 1. The inner wall of the annular groove is provided with several limiting grooves 10 at intervals. The end of the limiting rod 9 can be retracted into the limiting groove 10.

[0029] The brake assembly employs a press-type self-locking operation. When button block 7 is pressed once, the self-locking button automatically unlocks. Under the elastic force of the elastic reset member, button block 7 can drive the limiting rod 9 to slide down along the movable groove 8, so that the end of the limiting rod 9 is precisely embedded in one of the limiting grooves 10 on the inner wall of the annular groove of the wheel core 4, thereby achieving rotational locking of the wheel core 4. Conversely, when button block 7 is pressed again, button block 7 will drive the limiting rod 9 down and disengage from the limiting groove 10. Subsequently, the self-locking button can automatically lock and fix the position of button block 7, forming a positioning of button block 7, thereby releasing the braking restriction of the caster.

[0030] In addition, the self-locking button is a conventional structure used for press-type self-locking and unlocking. It is widely used in stationery, small electronic device accessories, household hardware and other products. It is a mature self-locking operation structure in the industry. The specific structural principle of how it achieves self-locking and unlocking by pressing is existing technology and will not be elaborated here.

[0031] Furthermore, referring to Figure 2 and Figure 3 As shown, it is worth noting that the outer wall of the bracket 1 has a rectangular hole that communicates with the inner side of the assembly groove 5, and a pressing pedal 11 that is detachably connected to the top of the button block 7 is inserted into the rectangular hole.

[0032] The detachable connection between the pressing pedal 11 and the button block 7, the detachable arrangement of the brake assembly in the mounting slot 5, and the layout design of the pressing pedal 11 being mounted on the upper side of the bracket 1 achieve multiple advantages in use:

[0033] On the one hand, the side and upper mounting position of the pressing pedal 11 is more ergonomic, so there is no need to bend over or exert effort to reach it when operating. In addition, the structure of the pressing pedal 11 protruding from the outer wall of the bracket 1 increases the force-bearing area. Compared with the traditional brake operation position, the force is applied more smoothly and with less effort when pressing, which greatly reduces the operating fatigue when braking frequently. At the same time, this position is intuitive and easy to find, and there is no need to deliberately position it when using it, which further improves the convenience of operation.

[0034] On the other hand, the detachable structure enables modular assembly and maintenance of components. When the pressing pedal 11 is worn or damaged, or when it needs to be replaced with a pressing pedal of different specifications / shapes to adapt to different usage scenarios, the pressing pedal 11 can be directly removed through the rectangular hole for replacement without disassembling the entire brake assembly. If the internal parts of the brake assembly need to be repaired, they can also be taken out of the assembly slot 5 as a whole without disassembling the bracket and wheel core structure, reducing maintenance difficulty and cost, and improving the flexibility of component replacement.

[0035] In addition, the pressing action is smooth and there is no extra friction noise under this setting, which is compatible with the silent design of the caster. While the pressing pedal 11 is firmly connected to the button block 7, the side and upper layout of the pressing pedal 11 will not interfere with the rotation of the caster, ensuring that the braking and movement functions do not affect each other, resulting in a better overall user experience.

[0036] Specifically, refer to Figure 3 and Figure 4 As shown, it is worth noting that the inner walls on both sides of the assembly groove 5 are provided with corresponding slots 18, and the outer wall of the button housing 6 is provided with corresponding flexible inserts 17 that are adapted to each slot 18. The flexible inserts 17 can be elastically fitted into the corresponding slots 18.

[0037] A stop block 19 is fixedly provided on the inner wall at the bottom of the assembly groove 5, and the stop block 19 abuts against the side wall of the button housing 6;

[0038] With the flexible insert 17, the groove 18, and the stop block 19, the flexible insert 17 can be made of flexible materials such as rubber. Its elastic fit with the groove 18 does not require additional fasteners. During assembly, simply align the button housing 6 with the assembly groove 5 and press it down. The flexible insert 17 shrinks and deforms under the pressure of the inner wall of the assembly groove 5. When the button housing 6 moves to the position corresponding to the flexible insert 17 and the groove 18 with the pressing action, the flexible insert 17 recovers its elastic memory and embeds itself into the groove 18, quickly completing the positioning and fixing of the button housing 6. During disassembly, only a slight pull or push of the button housing 6 is needed, and the flexible insert 17 can elastically deform again and disengage from the groove 18, realizing the quick disassembly and assembly of the brake assembly, significantly improving the assembly efficiency of the caster and the convenience of subsequent maintenance.

[0039] In addition, the stop block 19 serves as an assembly limit reference, which can accurately limit the assembly depth of the button housing 6 in the assembly groove 5, and prevent the brake assembly from shifting due to the button housing 6 being assembled too deep or too shallow. This ensures the matching accuracy of the button block 7 driving the limit rod 9 and the limit groove 10, and guarantees the reliability of the caster brake locking and unlocking actions.

[0040] Furthermore, referring to Figure 5 As shown, it is worth noting that the bottom of the pressing pedal 11 is provided with a movable groove 14, and two hook-shaped locking rods 12 are symmetrically arranged in the movable groove 14. The two locking rods 12 can slide elastically in the lateral direction, and the hook end of the locking rod 12 is provided with an inclined guide wall. The inner wall of the top of the button block 7 is provided with a locking cavity 13, and the top of the button block 7 is provided with a through-slot groove that communicates with the inside of the locking cavity 13. The width of the through-slot groove is adapted to the thickness of the hook end of the locking rod 12.

[0041] A slide rod 15 is horizontally fixed between the inner walls on both sides of the movable groove 14. Two locking rods 12 are slidably sleeved on the body of the slide rod 15. A spring is sleeved on the section of the slide rod 15 between the two locking rods 12. The two ends of the spring abut against the opposite sides of the two locking rods 12 respectively. A pressing rod 16 that can move laterally is correspondingly inserted through both sides of the pressing pedal 11. The inner ends of the two pressing rods 16 are respectively fixed to the outer walls of the two locking rods 12.

[0042] With the locking lever 12 in place, when assembling the pressing pedal 11 and the button block 7, the hook end of the locking lever 12 is pre-aligned with the insertion groove and inserted. The inclined guide wall of the hook end is automatically subjected to the squeezing force of the inner wall of the insertion groove, driving the locking lever 12 to slide laterally along the slide rod 15 and compress the spring. When the hook end of the locking lever 12 completely penetrates the insertion groove and enters the locking cavity 13, the bottom end of the pressing pedal 11 and the top end of the button block 7 are just in contact. At this time, the squeezing force of the inner wall of the insertion groove on the hook end is released, and the spring synchronously and elastically resets and pushes the locking lever 12 to slide in the opposite direction. The movement allows the hook end to be securely engaged with the inner wall of the locking cavity 13, completing the locking and fixing of the two. During disassembly, simply press the squeezing rod 16 inward to drive the two locking rods 12 to slide inward and make the hook end accurately aligned with the through groove. Then, easily lift and press the pedal 11 to make the hook end smoothly disengage from the through groove, quickly separating the pressing pedal 11 from the button block 7. The entire operation process requires no additional tools, is simple and labor-saving, and is compatible with the overall modular design of the caster, further enhancing the convenience of component replacement and subsequent maintenance.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A silent push-button brake double-row caster, the caster comprising a bracket (1) and two wheel cores (4) respectively disposed on both sides of the bracket (1), characterized in that, The bracket (1) has a through-hole (5) in the upper side area, and a brake assembly for realizing the caster braking function is provided in the mounting slot (5). The brake assembly includes a self-locking button that can be detached from the mounting slot (5). The self-locking button is mainly composed of a button housing (6) with an open top and a button block (7) that can be elastically raised and lowered within the button housing (6). The outer wall of the bracket (1) is provided with a rectangular hole that communicates with the inner side of the mounting slot (5). A pressing pedal (11) that is detachably connected to the top of the button block (7) is inserted into the rectangular hole.

2. The silent push-button brake double-row caster according to claim 1, characterized in that, The inner walls on both sides of the assembly groove (5) are provided with corresponding slots (18), and the outer wall of the button shell (6) is provided with a flexible insert (17) that is adapted to each slot (18). The flexible insert (17) can be elastically fitted into the corresponding slot (18).

3. A silent push-button brake double-row caster according to claim 2, characterized in that, A stop block (19) is fixedly provided on the inner wall at the bottom of the assembly groove (5), and the stop block (19) abuts against the side wall of the button housing (6).

4. A silent push-button brake double-row caster according to claim 1, characterized in that, The bottom end of the pressing pedal (11) is provided with a movable groove (14). Two hook-shaped levers (12) are symmetrically arranged in the movable groove (14). The two levers (12) can slide elastically in the lateral direction. The hook end of the lever (12) is provided with an inclined guide wall. The inner wall of the top of the button block (7) is provided with a locking cavity (13). The top of the button block (7) is provided with a through-sinking groove that communicates with the inside of the locking cavity (13). The width of the through-sinking groove is adapted to the thickness of the hook end of the lever (12).

5. A silent push-button brake double-row caster according to claim 4, characterized in that, The two sides of the pressing pedal (11) are respectively provided with compression rods (16) that can move laterally, and the inner ends of the two compression rods (16) are respectively fixed to the outer side walls of the two clamps (12).

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