Trundle structure convenient for replacing trundle body

Abstract

The utility model discloses a trundle structure convenient for replacing a trundle body, which is arranged on a mounting seat of a connecting bracket and comprises a mounting frame body and an adjusting frame body which are oppositely arranged, and the mounting frame body and the adjusting frame body are matched with each other and are used for clamping and mounting a trundle main body, comprising an adjusting supporting plate arranged at the bottom of the mounting base and a trundle shaft body arranged on the adjusting supporting plate. The mounting frame body is arranged at the bottom of the mounting base and used for controlling contact and separation with the trundle shaft body; and the inner side of the trundle main body is sleeved on the trundle shaft body through a bearing. By arranging the mounting frame body, the trundle can be conveniently and quickly disassembled, assembled and replaced on the trundle shaft body, the situation that the trundle is abraded, loosened and even damaged is avoided, and trundle bodies of different specifications can be conveniently mounted, clamped and used on the trundle shaft body through the adjusting frame body. The trundle can adapt to different scenes for installation and use of trundle bodies of different specifications, and is convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of casters, in particular to a caster structure which is convenient for replacing a wheel body. Background Art

[0002] Casters, also known as pulleys or rollers, are a common small component installed at the bottom of various mobile equipment. They are mainly used to make the equipment easier to move, turn and carry.

[0003] Casters are an important part of load-bearing mobile equipment (such as trolleys, office chairs, medical beds, etc.). Due to the frequent weight, friction and different ground conditions, casters are prone to wear, looseness or even damage over time and need to be replaced frequently.

[0004] To this end, the present application specifically proposes a caster structure that is easy to replace the wheel body to solve the above-mentioned technical problems, and the above-mentioned content is only used to assist in understanding the technical solution of the present application, and does not represent an admission that the above-mentioned content is the closest prior art. Utility Model Content

[0005] The main purpose of the utility model is to provide a caster structure which is convenient for replacing the wheel body, so as to solve the technical problems raised in the background technology.

[0006] In order to solve the above technical problems, the utility model provides a caster structure that is easy to replace the wheel body, which is arranged on a mounting seat of a connecting bracket, and includes a mounting frame and an adjustment frame that are relatively arranged. The mounting frame and the adjustment frame cooperate with each other to clamp and install the caster body, wherein:

[0007] The adjusting frame comprises an adjusting support plate arranged at the bottom of the mounting seat and a caster shaft arranged on the adjusting support plate;

[0008] The mounting frame is arranged at the bottom of the mounting seat and is used to control the contact and separation with the caster shaft body;

[0009] The inner side of the caster body is arranged on the caster shaft body through a bearing sleeve.

[0010] Furthermore, the mounting frame includes a rotatable mounting plate arranged at the bottom of the mounting seat, and a rotatable connecting plate rotatably arranged on the rotatable mounting plate, and a support plate assembly for mounting on the caster shaft body is movably arranged on the rotatable connecting plate.

[0011] Furthermore, a sliding through groove is provided on the rotating connecting plate for slidingly installing the supporting plate assembly, and a locking piece is provided on the sliding through groove for fixing the sliding position of the supporting plate assembly.

[0012] Furthermore, the locking member includes a latch rod and a slot formed on the inner side of the sliding slot. When the support plate assembly is in a fixed position, the latch rod passes through the side wall of the rotating connecting plate, enters the sliding slot, and then slides into the slot, and the latch rod contacts the support plate assembly.

[0013] Furthermore, the support plate assembly includes a connecting column block sliding in the sliding groove and two groups of parallel distributed support plate bodies arranged on the connecting column block, and the support plate bodies are used to cooperate with the adjustment of the support plate limit clamping caster body.

[0014] Furthermore, the supporting plate bodies are slidably fitted on the rotating connecting plate at one side thereof close to each other, and the supporting plate bodies are provided with openings for the caster shafts to be engaged and slidably installed.

[0015] Furthermore, the adjustment support plates are arranged in two groups, one end of the caster shaft is fixed to one group of adjustment support plates, and the middle part of the caster shaft passes through the other group of adjustment support plates to extend to the mounting frame.

[0016] Furthermore, an adjustment component is also provided on the adjustment support plate on one side close to the mounting frame, for cooperating with the mounting frame to limit and clamp the caster body.

[0017] Furthermore, an external thread is provided at one end of the caster shaft, and the adjustment assembly includes an internal threaded sleeve, an adjusting nut arranged at one end of the internal threaded sleeve, and a gasket ring arranged at the other end of the internal threaded sleeve, and the gasket ring is used to cooperate with the mounting frame to limit and clamp the caster body, and the caster shaft passes through the adjusting nut, the internal threaded sleeve and the gasket ring in sequence, and the inner sides of the adjusting nut and the internal threaded sleeve are threadedly connected to the external thread.

[0018] The beneficial effects of the utility model are embodied in:

[0019] 1. The utility model sets a mounting frame and utilizes a latch rod to control the movement and fixation of the support plate assembly, thereby further controlling the connection and separation between the support plate assembly and the caster shaft body. Since the support plate assembly is in a separated state from the caster shaft body, the caster can be disassembled and installed only by sliding along the axis on the caster shaft body. Therefore, the connection and separation control between the support plate assembly and the caster shaft body can facilitate the rapid disassembly, assembly and replacement of the caster on the caster shaft body, thereby reducing the continuous wear of the caster, improving the use effect and service life of the caster components, and facilitating use.

[0020] 2. The adjustment frame of the utility model is provided with an adjustment component, and by rotating the adjustment nut, it can cooperate with the external thread of the caster shaft to control the gasket ring to move along the axial length direction of the caster shaft, thereby cooperating with the mounting frame to complete the installation and clamping of caster bodies of different specifications, which is convenient for the installation and use of caster bodies of different specifications according to actual usage scenarios, has strong applicability and is easy to use.

[0021] 3. The utility model is provided with a mounting frame and an adjusting frame which are relatively arranged, and the caster body is clamped and installed by the mounting frame and the adjusting frame cooperating with each other. At the same time, by setting the mounting frame, it is convenient to quickly disassemble and replace the caster on the caster shaft, and by adjusting the frame, it is convenient to install and clamp caster bodies of different specifications on the caster shaft for use. In summary, the caster structure can not only quickly replace the caster body to avoid wear, looseness or even damage of the caster, but also can adapt to different scenarios to install and use caster bodies of different specifications, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 It is an overall three-dimensional schematic diagram of the utility model Figure 1 ;

[0024] Figure 2 It is an overall three-dimensional schematic diagram of the utility model Figure 2 ;

[0025] Figure 3 It is a three-dimensional schematic diagram of the separated main structure of the caster of the utility model;

[0026] Figure 4 It is a three-dimensional schematic diagram of the overall structure of the mounting frame of the utility model;

[0027] Figure 5 It is a three-dimensional schematic diagram of the structure separation of the mounting frame of the utility model;

[0028] Figure 6 It is a cross-sectional perspective schematic diagram of the installation structure of the adjustment component of the utility model;

[0029] Figure 7 It is a schematic three-dimensional diagram of the structure for preventing the support plate assembly from rotating excessively in the present invention.

[0030] In the figure:

[0031] 1. Connecting bracket; 2. Mounting seat; 3. Caster body; 4. Bearing;

[0032] 5. Mounting frame; 51. Rotating mounting plate; 52. Rotating connecting plate; 521. Sliding slot; 522. Card slot; 523. Latch rod; 53. Support plate assembly; 531. Connecting column block; 532. Support plate body; 533. Opening;

[0033] 6. Adjustment frame; 61. Adjustment support plate; 62. Caster shaft; 621. External thread; 63. Adjustment assembly; 631. Adjustment nut; 632. Internal thread sleeve; 633. Gasket ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] In the embodiment, see Figures 1 to 7 .

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a caster structure that is easy to replace the wheel body, which is arranged on a mounting seat 2 connected to a bracket 1, and includes a mounting frame 5 and an adjustment frame 6 that are relatively arranged. The mounting frame 5 and the adjustment frame 6 cooperate with each other to clamp and install the caster body 3, wherein:

[0037] The adjusting frame 6 is used to cooperate with the mounting frame 5 to mount and clamp the caster bodies 3 of different specifications on the caster shaft 62, and includes an adjusting support plate 61 arranged at the bottom of the mounting seat 2 and a caster shaft 62 arranged on the adjusting support plate 61;

[0038] The mounting frame 5 is arranged at the bottom of the mounting seat 2 and is used to control the contact and separation with the caster shaft 62;

[0039] The inner side of the caster body 3 is sleeved on the caster shaft body 62 through the bearing 4.

[0040] In a specific implementation, since a mounting frame 5 and an adjusting frame 6 are relatively arranged, and the caster body 3 is clamped and installed by cooperating with the mounting frame 5 and the adjusting frame 6, the mounting frame 5 can facilitate the quick disassembly, assembly and replacement of the caster body 3 on the caster shaft 62, thus avoiding wear, looseness or even damage to the caster. The adjusting frame 6 can also facilitate the installation and clamping of caster bodies 3 of different specifications on the caster shaft 62 for use. Therefore, the caster structure can not only quickly replace the caster body 3, thus avoiding wear, looseness or even damage to the caster, but also can adapt to the installation and use of caster bodies 3 of different specifications in different scenarios, which is convenient and practical.

[0041] It should be noted that, in actual use, the caster body 3 can be directly replaced by a nylon wheel.

[0042] In a specific embodiment, if Figure 4 and Figure 5 As shown, the mounting frame 5 includes a rotatable mounting plate 51 arranged at the bottom of the mounting seat 2, a rotatable connecting plate 52 rotatably arranged on the rotatable mounting plate 51, and a support plate assembly 53 for mounting on the caster shaft 62 is movably arranged on the rotatable connecting plate 52.

[0043] In a specific implementation, by rotating the mounting plate 51 , rotating the connecting plate 52 and the supporting plate assembly 53 , it is possible to ensure that the caster body 3 can stably support the mounting seat 2 and the main body connected to the connecting bracket 1 during normal use after installation.

[0044] Furthermore, a sliding groove 521 is provided on the rotating connecting plate 52 for slidingly installing the supporting plate assembly 53, and a locking member is provided on the sliding groove 521 for fixing the sliding position of the supporting plate assembly 53.

[0045] In a specific implementation, the locking member can prevent the support plate assembly 53 from sliding arbitrarily through the sliding groove 521 during the normal force movement of the caster body 3, thereby ensuring the force stability and posture level of the mounting seat 2 when the caster is supported, thereby ensuring the use effect of the caster.

[0046] Specifically, the locking member includes a latch rod 523 and a latch slot 522 provided inside the sliding slot 521;

[0047] When the support plate assembly 53 is in a fixed position, the latch rod 523 passes through the side wall of the rotating connecting plate 52 and enters the sliding groove 521 , and then slides into the inside of the card slot 522 , and the latch rod 523 contacts the support plate assembly 53 .

[0048] It can be further explained at this point that a corresponding rubber sleeve handle can also be provided at one end of the latch rod 523 to facilitate maintenance and replacement operators to manually pull out the latch rod 523.

[0049] In addition, it should be noted that the above-mentioned locking member can also be directly replaced by other existing technologies for controlling the positioning of sliding objects, such as a snap structure.

[0050] In a specific implementation, after the latch rod 523 is disengaged and pulled out from the locking slot 522 , the support plate assembly 53 can slide flexibly in the sliding slot 521 , and at this time, the support plate assembly 53 can also rotate flexibly in the sliding slot 521 .

[0051] Furthermore, the support plate assembly 53 includes a connecting column block 531 sliding in the sliding groove 521 and two sets of parallel distributed support plate bodies 532 arranged on the connecting column block 531, and the support plate body 532 is used to cooperate with the adjustment support plate 61 to limit and clamp the caster body 3.

[0052] At this time, the supporting plate bodies 532 are slidably fitted on the rotating connecting plate 52 at one side thereof, and the supporting plate bodies 532 are provided with openings 533 for the caster shaft 62 to be engaged and slidably installed.

[0053] Therefore, when the support plate assembly 53 moves flexibly in the sliding groove 521 , the support plate body 532 of the support plate assembly 53 can be directly controlled to separate from the caster shaft 62 through the opening 533 .

[0054] It should be noted that during normal installation and use of the caster, since the top of the rotating connecting plate 52 abuts against the surface of the mounting seat 2, and the connecting column block 531 is located above the line connecting the rotating shaft of the rotating connecting plate 52 and the caster shaft 62, the support plate assembly 53 will not move easily during normal use.

[0055] However, in actual products, in order to ensure the active positioning of the support plate assembly 53, reference Figure 7 Generally, a corresponding limit plate or limit structure is installed on the rotating connecting plate 52 to limit the unnecessary rotation of the supporting plate assembly 53.

[0056] In summary, in a specific implementation, by setting up the mounting frame 5 and utilizing the latch rod 523 to control the movement and fixation of the support plate assembly 53, the connection and separation of the support plate assembly 53 and the caster shaft 62 can be further controlled. Since the support plate assembly 53 and the caster shaft 62 are in a separated state, the caster can be disassembled and installed simply by sliding along the axis on the caster shaft 62. Therefore, the connection and separation control of the support plate assembly 53 and the caster shaft 62 can facilitate the rapid disassembly, assembly and replacement of the caster on the caster shaft 62, thereby reducing the continuous wear of the caster, improving the use effect and service life of the caster components, and facilitating use.

[0057] In a specific embodiment, if Figure 6As shown, the adjustment support plates 61 are arranged in two groups, one end of the caster shaft 62 is fixed to one group of adjustment support plates 61 , and the middle part of the caster shaft 62 passes through the other group of adjustment support plates 61 to extend to the mounting frame 5 .

[0058] Therefore, in a specific implementation, the two sets of adjustment support plates 61 can ensure the stability of the caster shaft 62 when supporting and installing the caster body 3 .

[0059] In addition, an adjustment component 63 is also provided on the adjustment support plate 61 close to the side of the mounting frame 5 , which is used to cooperate with the mounting frame 5 to limit and clamp the caster body 3 .

[0060] Furthermore, an external thread 621 is provided at one end of the caster shaft 62, and the adjustment assembly 63 includes an internal thread sleeve 632, an adjustment nut 631 arranged at one end of the internal thread sleeve 632, and a gasket ring 633 arranged at the other end of the internal thread sleeve 632, and the gasket ring 633 is used to cooperate with the mounting frame 5 to limit and clamp the caster body 3.

[0061] Therefore, specifically, the caster shaft 62 passes through the adjusting nut 631 , the internal thread sleeve 632 and the spacer ring 633 in sequence, and the inner sides of the adjusting nut 631 and the internal thread sleeve 632 are threadedly connected with the external thread 621 .

[0062] In the specific implementation, by rotating the adjusting nut 631, the external thread 621 of the caster shaft 62 can be coordinated with the gasket ring 633 to move along the axial length direction of the caster shaft 62, thereby cooperating with the mounting frame 5 to complete the installation and clamping of caster bodies 3 of different specifications, which is convenient for the installation and use of caster bodies 3 of different specifications according to actual usage scenarios, and has strong applicability and is easy to use.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0064] In addition, it should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0065] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, in the embodiments of the utility model, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Claims

1. A caster structure for facilitating replacement of a wheel body, arranged on a mounting seat (2) of a connecting bracket (1), characterized in that: The caster wheel comprises a mounting frame (5) and an adjusting frame (6) which are arranged opposite to each other, wherein the mounting frame (5) and the adjusting frame (6) cooperate with each other to clamp and mount the caster wheel body (3), wherein: An adjustment frame (6) comprises an adjustment support plate (61) arranged at the bottom of the mounting seat (2) and a caster shaft (62) arranged on the adjustment support plate (61); A mounting frame (5) is arranged at the bottom of the mounting seat (2) and is used to control the contact and separation with the caster shaft (62); The inner side of the caster body (3) is sleeved on the caster shaft body (62) through a bearing (4).

2. The caster structure for facilitating wheel replacement according to claim 1, characterized in that: The mounting frame (5) comprises a rotatable mounting plate (51) arranged at the bottom of the mounting seat (2), and a rotatable connecting plate (52) rotatably arranged on the rotatable mounting plate (51), and a supporting plate assembly (53) for mounting on the caster shaft (62) is movably arranged on the rotatable connecting plate (52).

3. The caster structure for facilitating wheel replacement according to claim 2, characterized in that: The rotating connecting plate (52) is provided with a sliding groove (521) for slidingly installing the supporting plate assembly (53); the sliding groove (521) is provided with a locking piece for fixing the sliding position of the supporting plate assembly (53).

4. The caster structure for facilitating wheel replacement according to claim 3, characterized in that: The locking member comprises a latch rod (523) and a clamping groove (522) provided inside the sliding groove (521); When the support plate assembly (53) is in a fixed position, the latch rod (523) passes through the side wall of the rotating connecting plate (52) and enters the sliding groove (521), and then slides into the interior of the card slot (522), and the latch rod (523) contacts the support plate assembly (53).

5. The caster structure for facilitating wheel replacement according to claim 4, characterized in that: The support plate assembly (53) comprises a connecting column block (531) sliding in the sliding groove (521) and two groups of parallel distributed support plate bodies (532) arranged on the connecting column block (531), wherein the support plate bodies (532) are used to cooperate with the adjusting support plate (61) to limit and clamp the caster body (3); The supporting plate bodies (532) are slidably fitted on the rotating connecting plate (52) at one side thereof close to each other, and the supporting plate bodies (532) are provided with openings (533) for the caster shaft body (62) to be engaged and slidably installed.

6. The caster structure for facilitating wheel replacement according to any one of claims 1 to 5, characterized in that: The adjustment support plates (61) are arranged in two groups, one end of the caster shaft (62) is fixed to one group of adjustment support plates (61), and the middle part of the caster shaft (62) passes through the other group of adjustment support plates (61) to extend to the mounting frame (5).

7. The caster structure for facilitating wheel replacement according to claim 6, characterized in that: An adjustment component (63) is also provided on the adjustment support plate (61) on one side close to the mounting frame (5), and is used to cooperate with the mounting frame (5) to limit and clamp the caster body (3).

8. The caster structure for facilitating wheel replacement according to claim 7, characterized in that: One end of the caster shaft (62) is provided with an external thread (621), the adjustment assembly (63) comprises an internal thread sleeve (632), an adjustment nut (631) arranged at one end of the internal thread sleeve (632), and a gasket ring (633) arranged at the other end of the internal thread sleeve (632), the gasket ring (633) being used to cooperate with the mounting frame (5) to limit and clamp the caster body (3); The caster shaft (62) passes through the adjusting nut (631), the internal thread sleeve (632) and the gasket ring (633) in sequence, and the inner sides of the adjusting nut (631) and the internal thread sleeve (632) are threadedly connected to the external thread (621).

Images