CN209966839U

CN209966839U - Magnetic positioning device

Info

Publication number: CN209966839U
Application number: CN201821953399.5U
Authority: CN
Inventors: 曹锋平; 宋宗鸿; 宋宗团; 李祖志; 张益招
Original assignee: SHANGHAI CHAOCHENG ELECTRONICS CO Ltd
Current assignee: SHANGHAI CHAOCHENG ELECTRONICS CO Ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2020-01-21
Anticipated expiration: 2028-11-26

Abstract

The utility model discloses a magnetism positioner, including electro-magnet, soft pad, base and rolling mechanism, wherein, electro-magnet and rolling mechanism set up on the base, a surface of electro-magnet be used for with the object contact that attracts, the partial position on this surface sets up soft pad. The utility model discloses set up soft pad, can alleviate the electro-magnet and receive the collision sound of hitting and increase the friction dynamics when attracting the primer body contact. The soft pad is arranged on a partial area of the surface of the electromagnet, so that the vertical attraction of the electromagnet is not influenced; the rolling mechanism is arranged, so that the bed board can slide conveniently; the fixing bulge is used for fixing the electromagnet, and the limiting bulge is used for preventing the electromagnet from rotating and avoiding the winding of the electric wire; the rolling shaft is tightly matched with the base and provided with the knurls, so that the rolling shaft is prevented from being driven to rotate when the roller rotates, the stability of the roller is improved, and unnecessary abrasion can be avoided; and a retainer ring is arranged to prevent the axial movement of the roller. The utility model discloses noise when can reduce the bed board and slide and attract.

Description

Magnetic positioning device

Technical Field

The utility model relates to a magnetism positioner.

Background

The bed board of hospital needs the slide adjustment position occasionally, needs fixed position after the adjustment. At this time, an electromagnet is usually installed on the bed frame, and the bed plate is attracted after the electromagnet is energized. However, the sound of the operation of the suction is loud. Therefore, there is a need to mitigate this noise through structural design.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem, provide a magnetism positioner.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a magnetic positioning device comprises an electromagnet, a soft pad, a base and a rolling mechanism, wherein the electromagnet and the rolling mechanism are arranged on the base, one surface of the electromagnet is used for being in contact with an attracted object, and the soft pad is arranged at part of the surface.

According to an embodiment of the present invention, the partial position of the surface is a circular ring-shaped region, and the outer circle of the circular ring is spaced from the edge of the surface of the electromagnet.

According to an embodiment of the present invention, the soft pad is made of rubber or urethane rubber.

According to an embodiment of the utility model, the soft pad inlay and locate on the electro-magnet, the surface of soft pad is higher than the surface of electro-magnet.

According to the utility model discloses an embodiment, the base include first layer and the second floor that the interval set up, electro-magnet and rolling mechanism all set up on the first layer, first layer and second floor pass through the connecting rod and link to each other.

According to the utility model discloses an embodiment, first layer and second floor between set up elasticity resetting means, elasticity resetting means is used for providing the holding power between first layer and the second floor to and first layer or second floor receive the cushioning power and the restoring force when extrudeing.

According to the utility model discloses an embodiment, elasticity resetting means include compression spring, compression spring cover is located on the connecting rod.

According to the utility model discloses an embodiment, the electro-magnet and the one side of first layer contact on set up fixed protrusion, fixed protrusion passes the first layer setting, set up the nut on the fixed protrusion and realize the fixed of fixed protrusion and first layer.

According to the utility model discloses an embodiment, the electro-magnet and the one side of first layer contact on set up spacing arch, spacing arch is worn to locate in the first layer or is passed the first layer setting.

According to an embodiment of the present invention, the rolling mechanism includes a roller and a roller, and the roller is connected to the first layer through the roller.

According to the utility model discloses an embodiment, roller bearing and first layer be tight fit, the part that roller bearing and first layer contacted sets up the annular knurl.

According to the utility model discloses an embodiment, the both ends of roller bearing and first layer between set up the retaining ring.

According to the utility model discloses an embodiment, the first layer set up the position of roller bearing for the structure that three panels connected gradually, the both ends of roller bearing set up on relative two panels.

The utility model is provided with the soft pad, which can relieve the collision sound when the electromagnet contacts with the attracted primer body and increase the friction force of the electromagnet; the soft pad is arranged on a partial area of the surface of the electromagnet, so that the positive attraction of the electromagnet is not influenced; the rolling mechanism is arranged, so that the bed board can slide conveniently; the fixing bulge is used for fixing the electromagnet, and the limiting bulge is used for preventing the electromagnet from rotating and avoiding the winding of the electric wire; the rolling shaft is tightly matched with the base and provided with the knurls, so that the rolling shaft is prevented from being driven to rotate when the roller rotates, the stability of the roller is improved, and unnecessary abrasion can be avoided; and a retainer ring is arranged to prevent the axial movement of the roller.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a top view of FIG. 1;

fig. 5 is a structural view of the roller.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1 to 4, the magnetic positioning device of the present embodiment includes an electromagnet 1, a soft pad 2, a base, and a rolling mechanism, wherein the electromagnet 1 and the rolling mechanism are disposed on the base, one surface of the electromagnet 1 is used for contacting an attracted object, and the soft pad 2 is disposed at a part of the surface, which is the upper surface in fig. 1 in the present embodiment. As shown in fig. 4, the partial position of the surface refers to a circular ring-shaped area, and the outer circle of the circular ring is spaced from the edge of the surface of the electromagnet 1.

The soft pad 2 is made of rubber or polyurethane rubber. The soft pad 2 is embedded on the electromagnet 1, and the surface of the soft pad 2 is 0.1mm higher than the surface of the electromagnet 1. The friction force of the electromagnet can be increased without influencing the forward attraction force.

The base include first layer 3 and the second floor 4 that the interval set up, electro-magnet 1 and rolling mechanism all set up on first layer 3, first layer 3 and second floor 4 link to each other through connecting rod 5. And an elastic resetting device is arranged between the first layer 3 and the second layer 4 and is used for providing a supporting force between the first layer 3 and the second layer 4 and a buffering force and a restoring force when the first layer 3 or the second layer 4 is extruded. The elastic reset device comprises a compression spring 6, and the compression spring 6 is sleeved on the connecting rod 5. The electromagnet 1 is provided with a fixing protrusion 7 on one surface contacting with the first layer 3, the fixing protrusion 7 penetrates through the first layer 3, and the fixing protrusion 7 is provided with a nut to fix the fixing protrusion 7 and the first layer 3.

As shown in fig. 3, a limiting protrusion 8 is disposed on a surface of the electromagnet 1 contacting the first layer 3, and the limiting protrusion 8 is disposed in the first layer 3 or disposed through the first layer 3. In this embodiment the stop protrusion 8 penetrates the first layer 3. The number of the fixed bulges 7 is one, the fixed bulges are arranged at the central part of the electromagnet 1, and the number of the limiting bulges 8 is two, and the two limiting bulges are respectively positioned at the two sides of the fixed bulges 7. The rolling mechanism comprises a roller 9 and a roller 10, and the roller 10 is connected to the first layer 3 through the roller 9. As shown in fig. 5, the roller 9 is tightly fitted with the first layer 3, and the portion of the roller 9 contacting the first layer 3 is provided with knurls 11.

And retainer rings 12 are arranged between the two ends of the roller 9 and the first layer 3. One end of the roller 9 can be provided with a circle of bulges along the circumferential direction, the other end of the roller is locked by a nut after passing through the first layer 3, a retainer ring 12 is arranged between the nut and the first layer 3, and the retainer ring 12 is arranged between the bulges and the first layer 3. The first layer 3 is provided with the rollers 9, the positions of the three panels are connected in sequence, and two ends of each roller 9 are arranged on the two opposite panels. In this embodiment, the number of the electromagnets 1 is two, and a set of rollers 10 and a set of rollers 9 are respectively disposed on two sides of the electromagnets 1.

When the bed is used, the base is arranged on the support, the bed board rolls on the roller 10, when the bed board is at a specific position, the surface, provided with the soft pad 2, of the electromagnet 1 faces the bed board, the electromagnet 1 is electrified to suck the bed board, and therefore the bed board is fixed.

The utility model is provided with the soft pad 2, which can relieve the collision sound when the electromagnet 1 contacts with the attracted primer body; the soft pad 2 is arranged on a partial area of the surface of the electromagnet 1, so that the attraction force of the electromagnet 1 is not influenced; the rolling mechanism is arranged, so that the bed board can slide conveniently; the fixing protrusion 7 is used for fixing the electromagnet 1, and the limiting protrusion 8 is used for preventing the electromagnet 1 from rotating so as to avoid winding of the electric wire; the roller 9 is tightly matched with the base and provided with knurls 11, so that the roller 9 is prevented from being driven to rotate when the roller 10 rotates; a retainer ring 12 is provided to prevent axial movement of the roller 9.

The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.

Claims

1. A magnetic positioning device is characterized by comprising an electromagnet, a soft pad, a base and a rolling mechanism, wherein the electromagnet and the rolling mechanism are arranged on the base, one surface of the electromagnet is used for being in contact with an attracted object, and the soft pad is arranged on part of the surface.

2. A magnetic positioning device according to claim 1 wherein the partial position of the surface is an annular region, the outer circumference of the annular region being spaced from the edge of the electromagnet surface.

3. The magnetic positioning device of claim 1, wherein the soft pad is made of rubber or polyurethane rubber.

4. A magnetic positioning device as claimed in claim 1, 2 or 3 wherein the soft pad is embedded in the electromagnet and the surface of the soft pad is higher than the surface of the electromagnet.

5. The magnetic positioner of claim 1, wherein the base includes first and second layers spaced apart from each other, the electromagnet and the rolling mechanism being disposed on the first layer, the first and second layers being connected by a connecting rod.

6. The magnetic positioning device of claim 5, wherein a resilient return means is provided between the first and second layers for providing a supporting force between the first and second layers and a cushioning and restoring force when the first or second layers are compressed.

7. The magnetic positioning device of claim 6, wherein the resilient return means comprises a compression spring, and the compression spring is disposed on the connecting rod.

8. The magnetic positioning device of claim 5, wherein the electromagnet is provided with a fixing protrusion on a surface contacting with the first layer, the fixing protrusion is arranged to penetrate through the first layer, and the fixing protrusion is provided with a nut to fix the fixing protrusion and the first layer.

9. A magnetic positioning device as claimed in claim 5 or 8, in which the surface of the electromagnet in contact with the first layer is provided with a limiting projection, and the limiting projection is arranged to penetrate into or through the first layer.

10. The magnetic positioning device of claim 5, wherein the rolling mechanism comprises a roller and a roller, the roller being attached to the first layer by the roller.

11. The magnetic positioning device of claim 10 wherein the roller is a close fit with the first layer and the portion of the roller in contact with the first layer is knurled.

12. The magnetic positioning device of claim 11, wherein a retainer ring is disposed between each end of the roller and the first layer.

13. The magnetic positioning device of claim 10, 11 or 12, wherein the first layer is provided with rollers, and the first layer is provided with three panels connected in sequence, and two ends of each roller are provided on two opposite panels.