Moving assembly utilizing ejection structure for braking

Abstract

The utility model discloses a moving component utilizing an ejection structure to brake, which comprises a support, the support comprises a mounting plate, trundles are respectively fixed on two sides of the mounting plate, a guide plate is arranged at the bottom of the mounting plate, the top of the mounting plate is rotatably connected with a rotating shaft, a first swing piece and a second swing piece are fixed on the rotating shaft, the second swing piece is hinged with a swing plate, and the swing plate is hinged with the first swing piece. The rocking plate is hinged to an ejector rod, the ejector rod penetrates through the through holes in the mounting plate and the guide plate, and a spring is arranged between the ejector rod and the guide plate; the middle part of the brake rod is bent deviating from the two end parts, and the two ends of the brake rod are fixedly connected with the first swinging sheets of the two supports respectively. The device is simple and compact in structure, guiding and limiting functions are achieved by driving the ejector rod through the connecting rod mechanism, and braking is achieved by matching with the trundles with small wheel diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of bed foot mechanism improvement design, in particular to a moving component utilizing an ejection structure brake. Background Art

[0002] At present, the central control caster bed frame of a common medical bed mainly includes left and right central control caster bed frame main beams, which are connected by a crossbeam, and caster connecting seats formed by die-casting of aluminum alloy or zinc alloy are fixed by screws at both ends of the left and right central control caster bed frame main beams, and caster sleeves are integrally formed on the caster connecting seats. The connecting seat of this structure has high production cost, cumbersome processing, poor load-bearing strength, and unsatisfactory use effect; there is also a structure in which caster sleeves are directly welded at both ends of the left and right central control caster bed frame main beams, so that the front and rear caster control connecting rods are exposed on the outside of the central control caster bed frame main beam, resulting in the shape of the bed frame being not neat and tidy, which damages the overall appearance.

[0003] In the prior art, a patent with announcement number CN201832063U discloses a medical bed central control caster bed frame, comprising left and right central control caster bed frame main beams, the left and right central control caster bed frame main beams are connected by a cross beam, and caster sleeve fixing seats are welded to the front and rear ends of the left and right central control caster bed frame main beams respectively, and caster sleeves are connected to the caster sleeve fixing seats, and the caster sleeves are placed on the outer side of the central control caster bed frame main beam, and the bottom of the caster sleeves is connected to the central control caster; the utility model has reasonable structure, low production cost, convenient processing, good use effect and beautiful appearance, and is a central control caster bed frame widely used in medical beds.

[0004] The patent with announcement number CN2068477 discloses a vehicle emergency repair bed, which is an easily disassembled and swivel bed that can arbitrarily adjust the overall bed structure by utilizing the telescopic distance of threaded rotation and combining with new universal casters. The bed is a bed length rod that is swivel-connected by a threaded rod, and a canvas is used to enable the bed width rod to be inserted into and withdrawn from the headboard pin, thereby changing the overall bed structure. The bed feet use threaded rods with universal casters, which can arbitrarily adjust the height and movement of the bed body. A stopper screw is used to prevent the bed from moving under force and to support the bed body. The overall bed of the vehicle emergency repair bed is easy to disassemble and assemble, and is easy to carry and store after disassembly and assembly. It is flexible to use and is a new auxiliary tool for a mobile component that utilizes a ejection structure brake.

[0005] In the above technical solution, the stopper screw is slightly longer than the foot of the bed. A hole is dug in the middle of the outer wall of the bed length rod, and the stopper nut is connected with a pin shaft with a length of 25 mm. When the stopper screw is perpendicular to the bed length rod, it plays a stopping role and can reduce the force on both ends of the bed. In order to keep the bed balanced, the screws on both sides need to be rotated at the same time, and the lengths of the two screws relative to the screw holes must be kept the same. For on-site operation, two people are required to complete it synchronously.

[0006] In order to solve one of the above problems, the present application provides a moving assembly using an ejection structure for braking. Utility Model Content

[0007] The utility model aims to solve the problems existing in the prior art and proposes a mobile assembly using a push-out structure brake, which has a simple and compact structure, uses a connecting rod mechanism to drive the push rod to achieve guiding and limiting functions, and cooperates with casters with smaller wheel diameters to achieve braking.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mobile assembly using a ejection structure brake, comprising a support, the support comprising a mounting plate, casters are respectively fixed on both sides of the mounting plate, a guide plate is arranged at the bottom of the mounting plate, the top of the mounting plate is rotatably connected to a rotating shaft, a first swinging piece and a second swinging piece are fixed on the rotating shaft, the second swinging piece is hinged to a rocking plate, the rocking plate is hinged to a push rod, the push rod passes through the through holes on the mounting plate and the guide plate, when the rotating shaft rotates, the second swinging piece is driven to rotate, so that the hinged rocking plate pushes the push rod to move linearly along the through hole, a spring is arranged between the push rod and the guide plate, the spring is sleeved outside the push rod to play an upward pushing role on the push rod, that is, the push rod can be reset upward;

[0009] The brake rod has a middle portion that is bent away from the two end portions, and is easy to operate at the bend to allow it to rotate itself, which is equivalent to a rotating handle and can be operated with little effort. The two ends of the brake rod are respectively fixedly connected to the first swinging pieces of the two supports, and the rotation of the brake rod drives the first swinging piece to rotate around the rotating shaft, thereby causing the rotating shaft to rotate on the mounting plate.

[0010] Furthermore, the first swing piece as described above is fixed to one end of the rotating shaft, generally by welding, or a special-shaped hole is processed on the first swing piece, and the end of the rotating shaft is a shape matching the special-shaped hole, so that the first swing piece and the rotating shaft will not rotate relative to each other.

[0011] Furthermore, a U-shaped plate is set on the top of the mounting plate as described above, a hole is opened on the U-shaped plate and a rotating shaft is installed. The U-shaped plate is more stable than the structure of two parallel plates, so that the rocking plate rotates at the opening of the U-shaped plate without interfering with the rocking plate.

[0012] Furthermore, the installation position of the second swing plate as mentioned above is between the two openings of the U-shaped plate. The U-shaped plate is a straight plate with both ends bent at right angles in the same direction. The two right-angle plates are arranged opposite to each other and have openings for installing the rotating shaft.

[0013] Furthermore, the two second swinging pieces are connected to a rocking plate via a pivot, the rocking plate is limited by the two swinging pieces, and the deflection direction of the rocking plate is stable.

[0014] Furthermore, as described above, a groove for accommodating a rocking plate is processed on the upper portion of the push rod, holes are opened on both sides of the groove and the rocking plate is connected via a pin shaft, and the groove can also play a limiting role in the deflection of the rocking plate.

[0015] Furthermore, a step is provided on the push rod as described above, and the spring is sleeved on the push rod and connected by the step. The step is designed to facilitate the installation of the spring so that it has the elastic reset function for the push rod.

[0016] Furthermore, the diameter of the through hole processed on the mounting plate as described above is larger than the through hole processed on the guide plate. Due to the design of the step position and to meet the structural strength requirements of the groove, the upper diameter of the push rod needs to be enlarged, and the corresponding through hole size should also be larger at the top and smaller at the bottom.

[0017] Furthermore, a washer is provided at the step position of the push rod as described above. The washer is made of metal, and the force of the spring is directly applied to the washer to reduce the wear on the step position.

[0018] Furthermore, the brake rod as described above is shaped like an "X" to facilitate application of braking force; bearing seats are also installed on both sides of the mounting plate, the bearing seats are located between the two casters, and the bottom bracket of the bed can be installed in the bearing seats, so that the bed has walking and braking functions.

[0019] Compared with the prior art, the beneficial effects of the utility model are: the structure of the device is simple and compact, and the connecting rod mechanism and the reset spring are used to drive the push rod to achieve the guiding, resetting and limiting functions, and the caster with a smaller wheel diameter can be used to achieve braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is an explosion diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of the explosion of the support of the utility model.

[0023] In the figure: 1. support; 10. caster; 11. first swing plate; 12. rotating shaft; 13. second swing plate; 14. rocker plate; 15. push rod; 16. spring; 17. U-shaped plate; 18. mounting plate; 19. guide plate; 2. brake rod. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a central element. When an element is considered to be "installed on" another element, it can be directly installed on the other element or there can be a central element. When an element is considered to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two elements.

[0026] For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] Reference Figure 1-3As shown, a mobile assembly using a ejection structure brake of the utility model comprises a support 1, wherein the support 1 comprises a mounting plate 18, casters 10 are respectively fixed on both sides of the mounting plate 18, and the casters 10 generally use universal wheels to meet the multi-directional movement requirements of the mobile assembly, a guide plate 19 is arranged at the bottom of the mounting plate 18, and the top of the mounting plate 18 is rotatably connected to a rotating shaft 12, and a first swinging piece 11 and a second swinging piece 13 are fixed on the rotating shaft 12, so that the rotating shaft 12, the first swinging piece 11 and the second swinging piece 13 are The three movable plates 13 have the function of synchronous rotation. The second swing plate 13 is hinged to the rocking plate 14, and the rocking plate 14 is hinged to the push rod 15. The push rod 15 passes through the through holes on the mounting plate 18 and the guide plate 19. When the rotating shaft 12 rotates, it drives the second swing plate 13 to rotate, so that the hinged rocking plate 14 pushes the push rod 15 to move linearly along the through hole. A spring 16 is arranged between the push rod 15 and the guide plate 19. The spring 16 is sleeved outside the push rod 15 to push the push rod 15 upward, that is, the push rod 15 can be reset upward.

[0030] The brake rod 2 has a middle portion that is bent away from the two ends, and the bent portion is convenient for operation to make it rotate itself, which is equivalent to a rotating handle and can be operated with less effort. The two ends of the brake rod 2 are respectively fixedly connected to the first swinging pieces 11 of the two supports 1. The rotation of the brake rod 2 drives the first swinging piece 11 to rotate around the rotating shaft 12, and then the rotating shaft 12 rotates on the mounting plate 18. Specifically, the shape of the brake rod 2 is a "X" shape, which is convenient for applying braking force.

[0031] Embodiment 2

[0032] Reference Figure 1-3 As shown, based on the technical solution of the first embodiment, a mobile assembly using a ejection structure brake is provided. For the specific structural design of the support 1, the first swing plate 11 is fixed to one end of the rotating shaft 12, generally by welding, or by machining a special-shaped hole on the first swing plate 11, and the end of the rotating shaft 12 is a shape matching the special-shaped hole, and an interference fit is selected between the two, so that the first swing plate 11 and the rotating shaft 12 will not rotate relative to each other. Figure 3 As shown, the rotating shaft 12 is a hexagonal rod, and the corresponding first swinging piece 11 is processed with a hexagonal inner hole to match and install with the hexagonal rod.

[0033] Furthermore, a U-shaped plate 17 is provided on the top of the mounting plate 18. The U-shaped plate 17 has a hole and the rotating shaft 12 is installed. The U-shaped plate 17 is formed by bending the two ends of a straight plate at right angles in the same direction. The two right-angle plates are arranged opposite to each other and have holes for installing the rotating shaft 12. The U-shaped plate 17 is more stable than the structure of two parallel plates, so that the rocking plate 14 can rotate at the opening of the U-shaped plate 17 without interfering with the rocking plate 14. In addition, the installation position of the second swinging piece 13 is between the two holes of the U-shaped plate 17. As for the fixing method of the second swinging piece 13 and the rotating shaft 12, welding is generally used. Alternatively, a special-shaped hole can be machined on the second swinging piece 13. The end of the rotating shaft 12 is shaped to match the special-shaped hole, and a metal washer is used to clamp the groove of the rotating shaft 12 to limit the position. In this way, the second swinging piece 13 and the rotating shaft 12 will not rotate relative to each other. Figure 3 As shown, the rotating shaft 12 is made of a hexagonal rod, and the corresponding second swing piece 13 is processed with a hexagonal inner hole to match the hexagonal rod for installation. At the same time, grooves are opened at corresponding positions on the hexagonal rod to clamp metal washers to limit the positions of both sides of the second swing piece 13.

[0034] Furthermore, the two second swinging pieces 13 are connected to a rocking plate 14 via a pivot, and the rocking plate 14 is limited by the two swinging pieces. The deflection direction of the rocking plate 14 is stable, so that the hinge works smoothly.

[0035] Embodiment 3

[0036] Reference Figure 1-3 As shown, based on the technical solution of embodiment 1, a mobile component using an ejection structure brake is provided. As for the specific structural design of the support 1, a groove for accommodating the rocking plate 14 is processed on the upper part of the ejector rod 15, holes are opened on both sides of the groove and the rocking plate 14 is connected through a pin shaft. The groove can also play a limiting role in the deflection of the rocking plate 14. By setting the groove, the hinged installation of the rocking plate 14 is facilitated, and a hole can be opened on the ejector rod 15 to penetrate the groove, which is convenient for installing the pin shaft.

[0037] Furthermore, a step is provided on the push rod 15, and the spring 16 is sleeved on the push rod 15 and connected by the step. The step is designed to facilitate the installation of the spring 16 so that it has the elastic reset function of the push rod 15. In addition, the diameter of the through hole processed on the mounting plate 18 is larger than the through hole processed on the guide plate 19. Due to the design of the step and to meet the structural strength requirements of the groove, the upper diameter of the push rod 15 needs to be enlarged, and the corresponding through hole size should also be larger at the top and smaller at the bottom.

[0038] Furthermore, a washer is provided at the step position of the push rod 15, and the washer is made of metal. The force of the spring 16 is directly applied to the washer to reduce the wear on the step position. In addition, the shape of the brake rod 2 is a "F" shape, which is convenient for applying the braking force, such as using the foot brake rod 2; bearing seats are also installed on both sides of the mounting plate 18, and the bearing seats are located between the two casters 10. The bottom bracket of the bed can be installed in the bearing seats, so that the bed has walking and braking functions.

[0039] The device of the utility model is suitable for casters 10 with smaller wheel diameters, such as three-inch casters 10, so that the height of the mounting seat from the ground is relatively small, and the push rod 15 can be pushed down for a short distance to achieve resistance against the ground, thereby realizing the limit brake function, and the guiding function of the push rod 15 relies on the through hole processed on the guide plate 19, assisted by the through hole on the mounting plate 18 to achieve vertical guidance. Combined with the step position design on the push rod 15 and the spring 16, the spring 16 is located between the step position of the push rod 15 and the guide plate 19, and the spring 16 is compressed to exert an upward elastic force on the push rod 15 to achieve the upward reset action of the push rod 15. The lifting and lowering action of the push rod 15 itself is realized by a connecting rod mechanism connected to the push rod 15. Since the push rod 15 is limited in the horizontal direction, it can only move up and down in the vertical direction. The rocking plate 14 hinged to the push rod 15 and the second swinging piece 13 hinged to the rocking plate 14 constitute a connecting rod mechanism. The second swinging piece 13 and the first swinging piece 11 are both fixedly mounted on the rotating shaft 12, and the rotating shaft 12 is rotatably and movably arranged on the U-shaped plate 17 at the top of the mounting plate 18. Then, the first swinging piece 11 fixed at both ends of the brake rod 2 rotates synchronously with the rotation of the brake rod 2, so that the rotating shaft 12 can synchronously drive the second swinging piece 13 to rotate around the rotating shaft 12. In this way, the connecting rod mechanism can only push the push rod 15 to lift and lower under the rotation of the second swinging piece 13, that is, to realize the action of the push rod 15 extending downward or resetting upward in the guide plate 19.

[0040] In the device of the utility model, the assembly and matching relationship of the various components involved, the spring 16 and the welding method or the bending forming process are existing technologies or materials, and the relevant technical personnel can directly purchase or customize them from the market according to the required product models and specifications.

[0041] The electrical components mentioned in the text are all connected to an external main controller and 220V mains or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0042] The above is only a preferred specific embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned embodiment, and the utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical scheme of the utility model and its utility model concept, shall be covered within the protection scope of the utility model.

Claims

1. A mobile assembly using a knockout structure for braking, characterized in that: The support (1) comprises a mounting plate (18), casters (10) are fixed on both sides of the mounting plate (18), a guide plate (19) is arranged at the bottom of the mounting plate (18), the top of the mounting plate (18) is rotatably connected to a rotating shaft (12), a first swinging piece (11) and a second swinging piece (13) are fixed on the rotating shaft (12), the second swinging piece (13) is hinged to a rocking plate (14), the rocking plate (14) is hinged to a push rod (15), the push rod (15) passes through through holes on the mounting plate (18) and the guide plate (19), and a spring (16) is arranged between the push rod (15) and the guide plate (19); A brake rod (2), wherein the middle portion of the brake rod (2) is bent away from the two end portions, and the two ends of the brake rod (2) are respectively fixedly connected to the first swinging plates (11) of the two supports (1).

2. A mobile assembly using a knockout structure brake according to claim 1, characterized in that: The first swinging piece (11) is fixed to one end of the rotating shaft (12).

3. A mobile assembly using a knockout structure brake according to claim 2, characterized in that: A U-shaped plate (17) is arranged on the top of the installation plate (18), and a hole is opened on the U-shaped plate (17) and a rotating shaft (12) is installed thereon.

4. A mobile assembly using a knockout structure brake according to claim 3, characterized in that: The installation position of the second swinging piece (13) is between the two openings of the U-shaped plate (17).

5. The mobile assembly using the ejection structure brake according to claim 1, characterized in that: The two second swinging pieces (13) are connected to a rocking plate (14) via a pivot.

6. A mobile assembly using a knockout structure brake according to claim 5, characterized in that: The upper part of the push rod (15) is processed with a groove for accommodating the rocking plate (14), and holes are opened on both sides of the groove and the rocking plate (14) is connected through a pin shaft.

7. A mobile assembly using a knockout structure brake according to claim 6, characterized in that: The push rod (15) is provided with a step position, and the spring (16) is sleeved on the push rod (15) and is connected by the step position.

8. The mobile assembly using the ejection structure brake according to claim 7, characterized in that: The diameter of the through hole processed on the mounting plate (18) is larger than the diameter of the through hole processed on the guide plate (19).

9. A mobile assembly using a knockout structure brake according to claim 8, characterized in that: A washer is also provided at the step position of the push rod (15).

10. A mobile assembly using a ejection structure for braking according to any one of claims 1 to 9, characterized in that: The brake rod (2) is in the shape of a "X"; bearing seats are also installed on both sides of the mounting plate (18), and the bearing seats are located between the two casters (10).

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