A shock absorbing caster
By using a triangular shock absorbing mechanism composed of a buffer member, a first shock absorbing rod group and a second shock absorbing rod group in the shock absorbing casters, the problem of weakening the shock absorbing effect in the prior art is solved, and effective vibration absorption and load-bearing capacity are improved under large load conditions.
Patent Information
- Application Number
- CN202421265224.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-04
AI Technical Summary
When existing shock absorbing casters carry large equipment, the shock absorption effect is weakened and they cannot effectively absorb shock power.
A triangular shock absorbing mechanism consisting of a buffer member, a first shock absorbing rod group and a second shock absorbing rod group is adopted to absorb shock force through the bending of the buffer member and the expansion and contraction of the shock absorbing rod, and the triangular structure is further stabilized through the buffer rod.
It can effectively absorb vibration power under large load conditions, enhancing the load-bearing capacity and shock absorption effect of casters.
Smart Images
Figure CN222698213U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary equipment for transport devices, in particular to a shock-absorbing caster. Background Art
[0002] Casters are installed on objects that need to be moved frequently. For some precision equipment, shock-absorbing casters need to be installed. Existing shock-absorbing casters use springs to achieve shock absorption, but when the mass of the equipment that the casters need to carry is large, if the casters are still used for shock absorption.
[0003] For example, the Chinese patent: application number is 2022232932419, and the patent name is a shock-absorbing caster, "including: a roller assembly; a bracket installed on one side of the roller assembly and in a vertical direction, a mounting seat is installed on the top of the bracket, a first rotating shaft is installed on the bottom end of the bracket, and the roller assembly is rotatably mounted on the first rotating shaft; a shock-absorbing mechanism installed in the vertical direction of the side of the bracket away from the roller assembly, the bottom end of the shock-absorbing mechanism is installed on the roller assembly; a supporting mechanism installed on the first rotating shaft, the supporting mechanism includes two supporting seats symmetrically installed on both sides of the bracket, The cam is secured to the chassis and has two camshafts that are each secured to a first position and a second position and are adapted to move the camshafts relative to the chassis. The camshafts are secured to the chassis and are adapted to move the camshafts relative to the chassis. Utility Model Content
[0004] The purpose of the utility model is to provide a shock-absorbing caster.
[0005] In order to achieve the above purpose, the utility model adopts the following scheme:
[0006] A shock-absorbing caster comprises a mounting plate, a downwardly bent buffer member is connected to the mounting plate below, a wheel is arranged below the buffer member, a downwardly vertical first shock-absorbing rod group is hinged on both sides of the top of the buffer member, the rotating shaft of the wheel is mounted on the end of the first shock-absorbing rod group, a connecting shaft is horizontally arranged at the end of the buffer member, and a second shock-absorbing rod group inclined toward the direction of the wheel rotating shaft is respectively arranged at both ends of the connecting shaft, one end of the second shock-absorbing rod group is mounted on the wheel rotating shaft, and a buffer rod is connected between the first shock-absorbing rod group and the connecting shaft. The utility model is composed of the buffer member, the first shock-absorbing rod group and the second shock-absorbing rod group to form a triangular shock-absorbing mechanism. The triangular structure is stable and not easy to deform, so when the caster vibrates under load, it can stably absorb the vibration force well, and a buffer rod is hinged between the first shock-absorbing rod group and the second shock-absorbing rod group, which can further stabilize the triangular structure, so that the caster can carry more load and further increase the vibration force that the caster can absorb.
[0007] As a preferred solution of the utility model, the buffer component includes a base plate fixed below the mounting plate, a downwardly curved C-shaped buffer plate is symmetrically provided at one end of the base plate, and the connecting shaft rotates between the ends of the C-shaped buffer plates.
[0008] As a further solution of the utility model, the first shock-absorbing rod group includes a first connecting tube symmetrically hinged on both sides of the base plate, a first guide rod is inserted into the first connecting tube, a first rotating shaft plate is fixed to one end of the first guide rod, the rotating shaft of the wheel is rotatably arranged between the first rotating shaft plates, and a first spring is arranged between the first rotating shaft plate and the first connecting tube and is sleeved on the first guide rod.
[0009] As a further solution of the utility model, a connecting rod is provided between the two first connecting tubes, the connecting rod is in an inverted U-shape, a first hinged ear is provided on the top of the connecting rod, a second hinged ear is provided on the connecting shaft, and the two ends of the buffer rod are respectively hinged on the first hinged ear and the second hinged ear.
[0010] As a preferred embodiment of the present invention, the buffer rod is arranged at an angle, the connecting rod is located above the connecting shaft, the end of the buffer rod hinged to the first hinged ear is the highest end, and the end of the buffer rod hinged to the second hinged ear is the lowest end.
[0011] As a further solution of the utility model, the buffer rod includes a first hinge plate and a second hinge plate respectively hinged on the first hinge ear and the second hinge ear, a second guide rod is fixed to one end of the first hinge plate, a second connecting tube mounted on the second guide rod is fixed on the second hinge ear, and a second spring is mounted at the connection between the second guide rod and the second connecting tube.
[0012] As a preferred solution of the utility model, the connecting shaft is located above the wheel shaft, and the second shock-absorbing rod group is arranged obliquely, with the end fixed to the connecting shaft being the top and the end fixed to the wheel shaft being the lowest end.
[0013] As a further solution of the present invention, the second shock-absorbing rod group includes a third connecting tube fixed at both ends of the connecting shaft, and second rotating shaft plates are hinged at both ends of the rotating shaft of the wheel. A third guide rod passing through the third connecting tube is fixed at one end of the second rotating shaft plate, and a third spring is provided between the second rotating shaft plate and the third connecting tube and is sleeved on the third guide rod.
[0014] To sum up, the utility model has the following beneficial effects compared with the prior art: the utility model is composed of a buffer, a first shock-absorbing rod group and a second shock-absorbing rod group to form a triangular shock-absorbing mechanism. The triangular structure is stable and not easy to deform, so when the caster is loaded and vibrates, it can absorb the vibration force very stably, and a buffer rod is hinged between the first shock-absorbing rod group and the second shock-absorbing rod group, which can further stabilize the triangular structure, so that the caster can carry more load and further increase the vibration force that the caster can absorb. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is one of the three-dimensional views of the present utility model.
[0016] Figure 2 This is the second stereoscopic view of the present utility model.
[0017] Figure 3 This is an exploded view of the utility model.
[0018] Figure 4 It is a cross-sectional view of the utility model.
[0019] Explanation of the reference numerals: 1. mounting plate; 2. buffer member; 3. wheel; 20. first shock-absorbing rod group; 4. connecting shaft; 40. second shock-absorbing rod group; 60. buffer rod; 11. bottom plate; 12. C-shaped buffer plate; 21. first connecting tube; 22. first guide rod; 23. first pivot plate; 24. first spring; 31. connecting rod; 32. first hinge ear; 33. second hinge ear; 61. first hinge plate; 62. second hinge plate; 63. second guide rod; 64. second connecting tube; 65. second spring; 41. third connecting tube; 42. second pivot plate; 43. third guide rod. DETAILED DESCRIPTION
[0020] The following specific implementation content provides a variety of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.
[0021] In addition, space-related words may be used, such as "below", "lower side", "from the inside out", "above", "upper side" and similar words. These relative words are for the convenience of describing the relationship between one element or feature and another element or feature in the drawings. These spatial relative words include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be turned to different orientations, rotations or other orientations, and the space-related adjectives used therein may also be interpreted in the same way. Therefore, it cannot be understood as a limitation on the utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0022] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods: Figures 1 to 4 A shock-absorbing caster shown in the figure includes a mounting plate 1, a downwardly bent buffer member 2 is connected below the mounting plate 1, a wheel 3 is arranged below the buffer member 2, a downwardly vertical first shock-absorbing rod group 20 is hinged on both sides of the top of the buffer member 2, the rotating shaft of the wheel 3 is installed at the end of the first shock-absorbing rod group 20, a connecting shaft 4 is transversely provided at the end of the buffer member 2, and a second shock-absorbing rod group 40 inclined toward the rotating shaft direction of the wheel 3 is respectively provided at both ends of the connecting shaft 4, one end of the second shock-absorbing rod group 40 is installed on the rotating shaft of the wheel 3, and a buffer rod 60 is connected between the first shock-absorbing rod group 20 and the connecting shaft 4.
[0023] A further embodiment of the buffer member 2 in the utility model: the buffer member 2 includes a base plate 11 fixed under the mounting plate 1, and a downwardly bent C-shaped buffer plate 12 is symmetrically provided at one end of the base plate 11, and the connecting shaft 4 rotates between the ends of the C-shaped buffer plate 12. The C-shaped buffer plate 12 is elastic. When the caster is subjected to vibration, the C-shaped buffer plate 12 will bend and deform at the same time, thereby absorbing the vibration force.
[0024] A further embodiment of the first shock-absorbing rod group 20 in the utility model: the first shock-absorbing rod group 20 includes a first connecting tube 21 symmetrically hinged on both sides of the base plate 11, a first guide rod 22 is inserted in the first connecting tube 21, a first pivot plate 23 is fixed to one end of the first guide rod 22, the pivot rotation of the wheel 3 is set between the first pivot plates 23, a first spring 24 is provided between the first pivot plate 23 and the first connecting tube 21 and is sleeved on the first guide rod 22, when the caster is subjected to vibration, the first guide rod 22 will extend into the first connecting tube 21, absorb the vibration force through the first spring 24, and reset the first guide rod 22 and the first connecting tube 21.
[0025] A further embodiment of the first connecting tube 21 in the utility model: a connecting rod 31 is provided between the two first connecting tubes 21, the connecting rod 31 is in an inverted U shape, a first hinged ear 32 is provided on the top of the connecting rod 31, and a second hinged ear 33 is provided on the connecting shaft 4, and the two ends of the buffer rod 60 are respectively hinged on the first hinged ear 32 and the second hinged ear 33. The connecting rod 31 can link the two first connecting tubes 21 together to increase the strength of the caster, and the first hinged ear 32 and the second hinged ear 33 can fix the buffer rod 60.
[0026] A further embodiment of the buffer rod 60 in the utility model: the buffer rod 60 is arranged at an angle, the connecting rod 31 is located above the connecting shaft 4, the end of the buffer rod 60 and the first hinged ear 32 are hinged to each other as the highest end, and the end of the buffer rod 60 and the second hinged ear 33 are hinged to each other as the lowest end. The buffer rod 60 is arranged at an angle to further stabilize the triangular structure formed by the buffer part, the first shock-absorbing rod group and the second shock-absorbing rod group, so that the triangular structure is kept from deformation when the caster continuously absorbs vibration force.
[0027] A further embodiment of the buffer rod 60 in the utility model: the buffer rod 60 includes a first hinge plate 61 and a second hinge plate 62 respectively hinged on the first hinge ear 32 and the second hinge ear 33, a second guide rod 63 is fixed to one end of the first hinge plate 61, a second connecting tube 64 sleeved on the second guide rod 63 is fixed on the second hinge ear 33, and a second spring 65 is sleeved at the connection between the second guide rod 63 and the second connecting tube 64. When the caster vibrates, the second guide rod 63 will extend into the second connecting tube 64, and the vibration force is absorbed by the second spring 65 to reset the second guide rod 63 and the second connecting tube 64.
[0028] A further embodiment of the connecting shaft 4 in the utility model: the connecting shaft 4 is located above the rotating shaft of the wheel 3, the second shock-absorbing rod group 40 is arranged at an angle, the end fixed on the connecting shaft 4 is the uppermost end, and the end fixed on the rotating shaft of the wheel 3 is the lowest end. The second shock-absorbing rod group 40 is arranged at an angle to form a triangular structure with the first shock-absorbing rod group and the fixed buffer part, so that the caster is more stable and not easy to deform when absorbing vibration force.
[0029] A further embodiment of the second shock-absorbing rod group 40 in the utility model: the second shock-absorbing rod group 40 includes a third connecting tube 41 respectively fixed at both ends of the connecting shaft 4, and second rotating shaft plates 42 are respectively hinged at both ends of the rotating shaft of the wheel 3, and a third guide rod 43 passing through the third connecting tube 41 is fixed at one end of the second rotating shaft plate 42, and a third spring 44 is provided between the second rotating shaft plate 42 and the third connecting tube 41 and is sleeved on the third guide rod 43. When the caster vibrates, the third guide rod 43 will extend into the third connecting tube 41, and the vibration force is absorbed by the third spring 44 to reset the third guide rod 43 and the third connecting tube 41.
[0030] When in use: the buffer, the first shock-absorbing rod group and the second shock-absorbing rod group form a triangular structure, the C-shaped buffer plate 12 is elastic, and when the caster is subjected to vibration, the C-shaped buffer plate 12 will bend and deform at the same time to absorb the vibration force. When the caster is subjected to vibration, the first guide rod 22 will extend into the first connecting tube 21, absorb the vibration force through the first spring 24, and reset the first guide rod 22 and the first connecting tube 21. The connecting rod 31 can link the two first connecting tubes 21 together to increase the strength of the caster. The first hinged ear 32 and the second hinged ear 33 can fix the buffer rod 60. The buffer rod 60 is inclined to further stabilize the triangular structure formed by the buffer, the first shock-absorbing rod group and the second shock-absorbing rod group. When the caster continuously absorbs the vibration force, the triangular structure is kept from deformation. When the caster vibrates, the third guide rod 43 will extend into the third connecting tube 41, absorb the vibration force through the third spring 44, and reset the third guide rod 43 and the third connecting tube 41.
[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A shock-absorbing caster, comprising a mounting plate (1), a downwardly curved buffer (2) connected below the mounting plate (1), and a wheel (3) provided below the buffer (2), characterized in that: A first shock-absorbing rod group (20) is hinged downwardly on both sides of the top of the buffer (2); the rotating shaft of the wheel (3) is installed at the end of the first shock-absorbing rod group (20); a connecting shaft (4) is transversely provided at the end of the buffer (2); and second shock-absorbing rod groups (40) are respectively provided at both ends of the connecting shaft (4) and are inclined toward the rotating shaft direction of the wheel (3); one end of the second shock-absorbing rod group (40) is installed on the rotating shaft of the wheel (3); and a buffer rod (60) is connected between the first shock-absorbing rod group (20) and the connecting shaft (4).
2. The shock-absorbing caster according to claim 1, characterized in that: The buffer member (2) comprises a bottom plate (11) fixed below the mounting plate (1), a downwardly curved C-shaped buffer plate (12) is symmetrically provided at one end of the bottom plate (11), and the connecting shaft (4) rotates between the ends of the C-shaped buffer plate (12).
3. The shock-absorbing caster according to claim 2, characterized in that: The first damping rod group (20) comprises a first connecting tube (21) symmetrically hinged on both sides of the bottom plate (11); a first guide rod (22) is inserted into the first connecting tube (21); a first rotating shaft plate (23) is fixed at one end of the first guide rod (22); the rotating shaft of the wheel (3) is rotatably arranged between the first rotating shaft plates (23); a first spring (24) is arranged between the first rotating shaft plate (23) and the first connecting tube (21) and is sleeved on the first guide rod (22).
4. The shock-absorbing caster according to claim 3, characterized in that: A connecting rod (31) is provided between the two first connecting tubes (21), the connecting rod (31) is in an inverted U shape, a first hinged ear (32) is provided on the top of the connecting rod (31), a second hinged ear (33) is provided on the connecting shaft (4), and two ends of the buffer rod (60) are respectively hinged on the first hinged ear (32) and the second hinged ear (33).
5. The shock-absorbing caster according to claim 4, characterized in that: The buffer rod (60) is arranged at an angle, the connecting rod (31) is located above the connecting shaft (4), the end of the buffer rod (60) hinged to the first hinged ear (32) is the highest end, and the end of the buffer rod (60) hinged to the second hinged ear (33) is the lowest end.
6. The shock-absorbing caster according to claim 4, characterized in that: The buffer rod (60) comprises a first hinge plate (61) and a second hinge plate (62) which are respectively hinged on a first hinge ear (32) and a second hinge ear (33); a second guide rod (63) is fixed to one end of the first hinge plate (61); a second connecting tube (64) sleeved on the second guide rod (63) is fixed to the second hinge ear (33); and a second spring (65) is sleeved at the connection between the second guide rod (63) and the second connecting tube (64).
7. The shock-absorbing caster according to claim 6, characterized in that: The connecting shaft (4) is located above the rotating shaft of the wheel (3); the second shock-absorbing rod group (40) is arranged in an inclined manner, with the end fixed to the connecting shaft (4) being the uppermost end and the end fixed to the rotating shaft of the wheel (3) being the lowest end.
8. The shock-absorbing caster according to claim 7, characterized in that: The second damping rod group (40) comprises a third connecting tube (41) respectively fixed at both ends of the connecting shaft (4); a second rotating shaft plate (42) is respectively hinged at both ends of the rotating shaft of the wheel (3); a third guide rod (43) passing through the third connecting tube (41) is fixed at one end of the second rotating shaft plate (42); a third spring (44) is provided between the second rotating shaft plate (42) and the third connecting tube (41) and is sleeved on the third guide rod (43).