Castor brakes and castors

Abstract

The present invention discloses a caster brake and a caster with a caster brake, wherein the caster brake comprises a shell seat, a rotating member, a sliding member and a transmission member; the rotating member is arranged on the shell seat, the rotating member can rotate relative to the shell seat, a first clamping member is arranged inside the rotating member, a second clamping member that can be clamped and matched with the first clamping member is arranged inside the shell seat, and the second clamping member is slidably arranged on the shell seat; the sliding member is arranged on the shell seat and can slide along the outer periphery of the shell seat; one end of the transmission member is rotatably connected with the sliding member, and the other end of the transmission member is connected with the second clamping member, and the transmission member can drive the second clamping member to move to match with the first clamping member as the sliding member slides. This caster brake has a simple structure and reliable operation, and can keep the gap between the actuator and the shell seat unchanged, thereby preventing external foreign matter from entering the brake.

Description

Technical Field

[0001] The invention relates to the technical field of brake devices, and in particular to a caster brake and a caster. Background Art

[0002] The most common way to carry and move objects now is to set casters at the bottom of the objects. The casters can make the objects move more conveniently. However, a problem with existing casters is that the brake system is relatively complicated, the stability is not strong during use, and it is easy to malfunction. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a castor brake with stable and reliable braking action.

[0004] The present invention also provides a caster with the caster brake.

[0005] The caster brake according to the first aspect of the present invention comprises a shell seat, a rotating member, a sliding member and a transmission member; the rotating member is arranged on the shell seat, the rotating member can rotate relative to the shell seat, a first clamping member is arranged in the rotating member, a second clamping member capable of clamping and cooperating with the first clamping member is arranged in the shell seat, and the second clamping member is slidably arranged on the shell seat; the sliding member is arranged on the shell seat and can slide along the outer periphery of the shell seat; one end of the transmission member is rotatably connected to the sliding member, and the other end of the transmission member is connected to the second clamping member, and the transmission member can drive the second clamping member to move to cooperate with the first clamping member as the sliding of the sliding member slides.

[0006] The caster brake according to the embodiment of the present invention has at least the following beneficial effects:

[0007] The sliding member drives the transmission member to move by sliding along the outer periphery of the shell seat. The transmission member is connected to the second clamping member, and the second clamping member slides with the shell seat. Therefore, the movement of the transmission member can drive the second clamping member to slide relative to the shell seat. The transmission member is rotationally connected to the sliding member, so the transmission member adapts to the movement of the second clamping member by rotating relative to the sliding member. The second clamping member slides with the shell seat to achieve clamping with the first clamping member, thereby locking the rotating member. The rotating member is used to be installed and fixed with the wheel body of the caster, thereby achieving effective braking of the caster; on the contrary, if the brake is to be released, it is only necessary to control the sliding member to slide in the opposite direction, and the second clamping member can be disengaged from the first clamping member through the transmission of the transmission member. It can be seen that the caster brake proposed in this application has only the sliding member, the transmission member and the rotating member as the action parts, and the structure is simple, the braking action is stable and reliable, and it is easy to maintain.

[0008] Moreover, compared with some common caster brakes that use a lever to perform braking action, resulting in a large gap change between its actuator and the shell, which in turn makes it easy for foreign matter to enter the brake from the gap and affect the normal operation of the brake. The caster brake of the present application uses a sliding member as the actuator of the brake, which has a sliding gap with the outer peripheral edge of the shell seat to support the sliding of the sliding member along the outer peripheral edge of the shell seat, that is, the gap between the sliding member and the shell seat remains basically unchanged, and it is difficult for foreign matter to enter the shell seat from the gap and affect the normal operation of the internal components of the shell seat; compared with common caster brakes, the caster brake of the present application can ensure convenient and effective braking while keeping the gap between the sliding member and the shell seat basically unchanged, thereby implementing stable and reliable protection for the internal structure of the shell seat.

[0009] According to some embodiments of the present invention, one of the housing and the second clamping member is provided with a guide groove, and the other is provided with a guide column that can slide relative to the guide groove. The relative sliding of the guide groove and the guide column enables the second clamping member to slide relative to the housing, thereby enabling the second clamping member to engage with or separate from the first clamping member.

[0010] According to some embodiments of the present invention, a fixing column is provided in the shell base, and the guide groove is formed between the fixing column and a side wall of the shell base, the other end of the transmission member is provided with a fixing hole, and the second clamping member is also provided with a clamping column, and the clamping column is inserted and fixed in the fixing hole so that the guide column is fixed on the first clamping member, and the transmission member drives the guide column to slide along the guide groove, so that the clamping column and the first clamping member are engaged or disengaged, thereby achieving braking or releasing the brake of the caster.

[0011] According to some embodiments of the present invention, the transmission member is provided with a U-shaped groove cooperating with the fixed column, and the two side walls of the U-shaped groove clamp and limit the guide column to prevent the transmission member from shaking too much.

[0012] According to some embodiments of the present invention, one of the sliding member and the housing seat is provided with a sliding groove, and the other is provided with a slider that can slide relative to the sliding groove. The sliding member and the housing seat can slide together by the slider and the sliding groove.

[0013] According to some embodiments of the present invention, the first clamping member is configured as a plurality of latching teeth arranged axially around the rotating member, and a limiting area capable of clamping and limiting the second clamping member is formed between two adjacent latching teeth. When the second clamping member falls into the limiting area, the side walls of the two adjacent latching teeth limit the second clamping member, restricting the circumferential rotation of the rotating member, thereby achieving braking of the caster.

[0014] According to some embodiments of the present invention, the outer circumference of the shell seat is configured to be an arc shape, so that the sliding track of the sliding member is an arc shape, thereby reducing the space occupied by the sliding member and improving the compactness of the shell seat structure.

[0015] According to some embodiments of the present invention, there are two rotating parts, which are respectively arranged on both sides of the shell base, and both rotating parts are correspondingly provided with a first clamping part, thereby improving the matching strength when the first clamping part and the second clamping part are clamped, thereby ensuring the reliability of the caster braking operation.

[0016] According to some embodiments of the present invention, a pedal is provided on the sliding member, so that the sliding member can be moved by the pedal to quickly brake the caster.

[0017] The caster according to the second aspect of the present invention comprises the caster brake according to the first aspect of the present invention.

[0018] The caster according to the embodiment of the present invention has at least the following beneficial effects: the sliding member serves as an actuator of the brake, and has a sliding gap with the outer peripheral edge of the shell seat to support the sliding member to slide along the outer peripheral edge of the shell seat, that is, the gap between the sliding member and the shell seat remains basically unchanged, so it is difficult for foreign matter to enter the shell seat from the gap and affect the normal operation of the internal components of the shell seat; the sliding member drives the transmission member to move by sliding along the outer peripheral edge of the shell seat, and the transmission member is connected to the second clamping member, and the second clamping member is slidably matched with the shell seat, so the movement of the transmission member can drive the second clamping member to slide relative to the shell seat, and the transmission member is rotatably connected to the sliding member, so the transmission member adapts to the movement of the second clamping member by rotating relative to the sliding member, and the second clamping member slides with the shell seat to achieve clamping cooperation with the first clamping member, thereby locking the rotating member, and the rotating member is used to be installed and fixed with the wheel body of the caster, thereby achieving effective braking of the caster; on the contrary, if the brake is to be released, it is only necessary to control the sliding member to slide in the opposite direction, and the second clamping member can be disengaged from the first clamping member through the transmission of the transmission member. Compared with common caster brakes, the caster brake of the present application has a simple structure and reliable operation. While ensuring convenient and effective braking, it keeps the gap between the sliding part and the shell seat basically unchanged, thereby providing stable and reliable protection for the structure inside the shell seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of a caster brake according to an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of a braking state of a caster brake according to an embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of a caster brake in a released braking state according to an embodiment of the present invention;

[0023] Figure 4 for Figure 1 A partial structural exploded schematic diagram of a castor brake is shown;

[0024] Figure 5 for Figure 1 A schematic diagram showing the cooperation between the transmission member of the caster brake and the second clamping member is shown.

[0025] The shell base 100, the slider 110, the guide groove 120, the fixing column 130, the rotating member 200, the first clamping member 210, the limiting area 220, the sliding member 300, the slide groove 310, the pedal 320, the transmission member 400, the second clamping member 410, the guide column 411, the clamping column 412, the fixing hole 420, and the U-shaped groove 430. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] like Figure 1 and Figure 2As shown, the caster brake according to the first embodiment of the present invention includes a shell base 100, a rotating member 200, a sliding member 300 and a transmission member 400; the rotating member 200 is arranged on the shell base 100, and the rotating member 200 can rotate relative to the shell base 100, and a first clamping member 210 is provided in the rotating member 200, and a second clamping member 410 that can be clamped and matched with the first clamping member 210 is provided in the shell base 100, and the second clamping member 410 is slidably arranged on the shell base 100; the sliding member 300 is arranged on the shell base 100 and can slide along the outer periphery of the shell base 100; one end of the transmission member 400 is rotatably connected to the sliding member 300, and the other end of the transmission member 400 is connected to the second clamping member 410, and the transmission member 400 can drive the second clamping member 410 to move to match with the first clamping member 210 as the sliding member 300 slides.

[0030] Specifically, the sliding member 300 drives the transmission member 400 to move by sliding along the outer periphery of the shell seat 100, and the transmission member 400 is connected to the second clamping member 410, and the second clamping member 410 is slidably matched with the shell seat 100. Therefore, the movement of the transmission member 400 can drive the second clamping member 410 to slide relative to the shell seat 100. The transmission member 400 is rotatably connected to the sliding member 300, so the transmission member 400 adapts to the movement of the second clamping member 410 by rotating relative to the sliding member 300. The second clamping member 410 slides with the shell seat 100 to achieve clamping cooperation with the first clamping member 210, and then locks the rotating member 200. The rotating member 200 is used to be installed and fixed with the wheel body of the caster, thereby achieving effective braking of the caster; on the contrary, if the brake is to be released, it is only necessary to control the sliding member 300 to slide in the opposite direction, and the second clamping member 410 can be disengaged from the first clamping member 210 through the transmission of the transmission member 400. It can be seen that the caster brake proposed in the present application has only the sliding member 300, the transmission member 400 and the rotating member 200 as the moving parts, has a simple structure, stable and reliable braking action, and is easy to maintain.

[0031] Moreover, compared with some common caster brakes that use a lever to perform braking action, resulting in a large gap change between its actuator and the shell, which in turn makes it easy for foreign matter to enter the brake from the gap and affect the normal operation of the brake. The caster brake of the present application uses a sliding member 300 as the actuator of the brake, which has a sliding gap with the outer periphery of the shell base 100 to support the sliding member 300 to slide along the outer periphery of the shell base 100, that is, the gap between the sliding member 300 and the shell base 100 remains basically unchanged, and it is difficult for foreign matter to enter the shell base 100 from the gap and affect the normal operation of the internal components of the shell base 100; compared with common caster brakes, the caster brake of the present application can ensure convenient and effective braking while keeping the gap between the sliding member 300 and the shell base 100 basically unchanged, thereby implementing stable and reliable protection for the internal structure of the shell base 100.

[0032] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the housing 100 is provided with a guide groove 120, and the first connecting member is provided with a guide column 411 that can slide relative to the guide groove 120. The relative sliding of the guide groove 120 and the guide column 411 realizes the relative sliding of the second clamping member 410 and the housing 100, thereby enabling the second clamping member 410 to engage or separate with the first clamping member 210. In other embodiments, the positions of the guide groove 120 and the guide column 411 can be interchanged, and the effects are the same as above, which can be understood by those skilled in the art and will not be described in detail here.

[0033] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, a fixing column 130 is provided in the shell base 100, and a guide groove 120 is formed between the fixing column 130 and a side wall of the shell base 100. A fixing hole 420 is provided at the other end of the transmission member 400. The second clamping member 410 is also provided with a clamping column 412. The clamping column 412 is inserted and fixed in the fixing hole 420 so that the guide column 411 is fixed on the first clamping member 210. The transmission member 400 drives the guide column 411 to slide along the guide groove 120, so that the clamping column 412 is engaged or disengaged with the first clamping member 210, thereby realizing the braking or releasing of the caster.

[0034] In some embodiments of the present invention, Figure 2 and Figure 5 As shown, the transmission member 400 is provided with a U-shaped groove 430 that cooperates with the fixing column 130 , and the two side walls of the U-shaped groove 430 clamp and limit the guide column 411 to prevent the transmission member 400 from shaking too much.

[0035] Among them, Figure 5 As shown, the second clamping member 410 can be configured as a long column as a whole. After being installed and matched with the transmission member 400, the two ends of the second clamping member 410 protrude to the two sides of the transmission member 400 to form a clamping column 412, and the middle part is used to cooperate with the guide groove 120 to form a guide column 411. This simple and effective design is conducive to the processing of the second clamping member 410 and reduces the overall processing cost.

[0036] In some embodiments of the present invention, the sliding member 300 is provided with a slide groove 310, and the housing 100 is provided with a slider 110 that can slide relative to the slide groove 310. The slider 110 cooperates with the slide groove 310 to achieve sliding cooperation between the sliding member 300 and the housing 100. In other embodiments, the positions of the slide groove 310 and the slider 110 can be interchanged, and the effects are the same as above, which can be understood by those skilled in the art and will not be described in detail here.

[0037] Among them, further, Figure 2As shown, a housing cavity is provided in the shell base 100, and an opening communicating with the housing cavity is provided at the outer peripheral edge of the shell base 100, and the sliding member 300 is provided at the opening. The sliding member 300 includes a protective plate for covering the opening, and an assembly block is provided on the inner side of the protective plate. The protective plate covers the opening and is close to the outer peripheral edge of the shell base 100, and the slide groove 310 is provided on the assembly block. One end of the transmission member 400 is rotatably connected to the assembly block, that is, the protective plate realizes its sliding and drives the transmission member 400 to move through the assembly block, and the opening is used to avoid the sliding stroke of the assembly block, so as to realize the sliding effect of the sliding member 300 along the outer peripheral edge of the shell base 100. The gap between the sliding member 300 and the shell base 100 during the sliding process will not be too large, so that foreign objects such as dust, powder, and debris are difficult to enter from the gap between the sliding member 300 and the shell base 100, thereby ensuring the normal braking of the caster.

[0038] Of course, it is easy to think that, in some embodiments, the slide groove 310 is arranged on the outer peripheral edge of the shell seat 100 and is connected to the accommodating cavity, the sliding member 300 is arranged as a protective plate, and the slider 110 is arranged on the inner side of the protective plate. The slider 110 cooperates with the slide groove 310, and the slider 110 is provided with a hinged seat rotatably connected to the transmission member 400, which can also achieve the effect of the sliding member 300 sliding along the outer peripheral edge of the shell seat 100.

[0039] In some embodiments of the present invention, Figure 4 As shown, the first clamping member 210 is configured as a plurality of latching teeth arranged axially around the rotating member 200, and a limiting area 220 is formed between two adjacent latching teeth to limit the second clamping member 410. When the second clamping member 410 falls into the limiting area 220, the side walls of the two adjacent latching teeth limit the second clamping member 410, restricting the circumferential rotation of the rotating member 200, thereby braking the caster. The latching teeth can be arranged as follows: Figure 4 The gear ring shown makes the limiting area 220 uniform and tight, and when the clamping column 412 falls into the limiting area 220, it can be quickly limited by the side wall of the limiting area 220, achieving a quick braking effect. The density of arrangement and the number of settings of the clamping teeth can be set accordingly according to actual needs and are not limited here.

[0040] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, the outer circumference of the housing 100 is set to be an arc shape, so that the sliding track of the sliding member 300 is an arc shape, which reduces the space occupied by the sliding member 300 and improves the compactness of the structure of the housing 100. Among them, the guiding direction of the guide groove 120 and the tangential direction of the sliding member 300 have an inclined angle, which can ensure that the guide column 411 can be smoothly driven to slide during the sliding process of the sliding member 300.

[0041] Of course, it is understandable that in some embodiments, the housing 100 is provided with a straight side surface, and the sliding member 300 is provided on this side surface, so that its sliding track is a straight line, and the guiding direction of the guide groove 120 and the sliding direction of the sliding member 300 have an inclined angle, which can also achieve the sliding of the sliding member 300 and drive the guide column 411 to slide along the guide groove 120, thereby achieving the braking of the caster. It is worth noting that if the guiding direction of the guide groove 120 and the sliding direction of the sliding member 300 are vertical or nearly vertical, it is difficult for the sliding member 300 to drive the transmission member 400 to move, and it is difficult to make the guide column 411 slide along the guide groove 120.

[0042] In some embodiments of the present invention, Figure 4 As shown, there are two rotating members 200, which are respectively arranged on both sides of the housing 100, and the two rotating members 200 are respectively provided with a first clamping member 210, thereby improving the matching strength when the first clamping member 210 and the second clamping member 410 are clamped, and ensuring the reliability of the caster braking operation. Among them, fixed rings are arranged on both sides of the housing 100, and the rotating member 200 is sleeved on the fixed ring and rotates concentrically with the fixed ring to realize the rotation connection between the rotating member 200 and the housing 100.

[0043] In some embodiments of the present invention, Figure 1 As shown, a pedal 320 is provided on the sliding member 300, so that the sliding member 300 can be moved by the pedal 320 to quickly brake the caster.

[0044] The caster according to the second aspect of the present invention comprises the caster brake according to the first aspect of the present invention.

[0045] Specifically, the sliding member 300 serves as an actuator of the brake, and has a sliding gap with the outer peripheral edge of the shell base 100 to support the sliding member 300 to slide along the outer peripheral edge of the shell base 100, that is, the gap between the sliding member 300 and the shell base 100 remains basically unchanged, so it is difficult for foreign matter to enter the shell base 100 through the gap and affect the normal operation of the internal components of the shell base 100; the sliding member 300 drives the transmission member 400 to move by sliding along the outer peripheral edge of the shell base 100, and the transmission member 400 is connected to the second clamping member 410, and the second clamping member 410 is slidably matched with the shell base 100, so the movement of the transmission member 400 can drive the second clamping member 410 to move. The second clamping member 410 slides relative to the housing seat 100, and the transmission member 400 is rotatably connected with the sliding member 300, so the transmission member 400 adapts to the movement of the second clamping member 410 by rotating relative to the sliding member 300, and the second clamping member 410 slides with the housing seat 100 to achieve clamping cooperation with the first clamping member 210, thereby locking the rotating member 200, and the rotating member 200 is used to be installed and fixed with the wheel body of the caster, thereby achieving effective braking of the caster; on the contrary, if the brake is to be released, it is only necessary to control the sliding member 300 to slide in the opposite direction, and the second clamping member 410 can be disengaged from the first clamping member 210 through the transmission of the transmission member 400. Compared with the common caster brake, the caster brake of the present application has a simple structure and reliable operation. While ensuring convenient and effective braking, the gap between the sliding member 300 and the housing seat 100 remains basically unchanged, and the structure inside the housing seat 100 is stably and reliably protected.

[0046] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A caster, characterized in that: A caster brake is included, wherein the caster brake comprises: Shell seat (100); A rotating member (200), the rotating member (200) being arranged on the shell base (100), the rotating member (200) being capable of rotating relative to the shell base (100), the rotating member (200) being provided with a first clamping member (210), the shell base (100) being provided with a second clamping member (410) capable of clamping with the first clamping member (210), the second clamping member (410) being slidably arranged on the shell base (100); A sliding member (300), the sliding member (300) being arranged on the housing seat (100) and being capable of sliding along the outer periphery of the housing seat (100); a transmission member (400), one end of the transmission member (400) being rotatably connected to the sliding member (300), and the other end of the transmission member (400) being connected to the second clamping member (410), and the transmission member (400) being able to drive the second clamping member (410) to move to cooperate with the first clamping member (210) as the sliding member (300) slides; A fixing column (130) is provided in the shell seat (100), and a guide groove (120) is formed between the fixing column (130) and a side wall of the shell seat (100); a fixing hole (420) is provided at the other end of the transmission member (400); the second clamping member (410) is provided with a clamping column (412) and a guide column (411) capable of relatively slidingly cooperating with the guide groove (120), and the clamping column (412) is inserted and fixed in the fixing hole (420); the sliding member (300) is provided with a slide groove (310), and the shell seat (100) is provided with a sliding block (110) capable of relatively slidingly cooperating with the slide groove (310); the first clamping member (210) is configured as a plurality of clamping teeth arranged axially around the rotating member (200), and a limiting area (220) capable of clamping and limiting the clamping column (412) of the second clamping member (410) is formed between two adjacent clamping teeth; The shell seat (100) is provided with a receiving cavity, the outer periphery of the shell seat (100) is provided with an opening communicating with the receiving cavity, the sliding member (300) is provided at the opening, the sliding member (300) comprises a protective plate for covering the opening, an assembly block is provided on the inner side of the protective plate, the protective plate covers the opening and is close to the outer periphery of the shell seat (100), the slide groove (310) is provided on the assembly block, and one end of the transmission member (400) is rotatably connected to the assembly block; The protective plate in the sliding member (300) slides along the outer periphery of the shell seat (100) through the assembly block, driving the transmission member (400) to move, and then the transmission member (400) drives the guide column (411) of the second clamping member (410) to slide along the guide groove (120), so that the clamping column (412) of the second clamping member (410) is engaged or disengaged with the first clamping member (210), thereby achieving braking or releasing the brake of the caster.

2. The caster according to claim 1, characterized in that: The transmission member (400) is provided with a U-shaped groove (430) that cooperates with the fixing column (130).

3. The caster according to claim 1, characterized in that: The outer periphery of the housing seat (100) is arranged in an arc shape.

4. The caster according to claim 3, characterized in that: The rotating members (200) are provided in two numbers, and the two rotating members (200) are respectively arranged on two sides of the housing seat (100).

5. The caster according to claim 1, characterized in that: The sliding member (300) is provided with a pedal (320).

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