Bearing for mechanical door handle

Abstract

The utility model discloses a bearing for a mechanical door handle, which relates to the field of bearings and comprises an inner collar, an outer collar and a ball, the ball is arranged between the inner collar and the outer collar, a protective component is arranged outside the inner collar and the outer collar, the inner collar and the outer collar are arranged between a first protective circular ring and a second protective circular ring, and the first protective circular ring and the second protective circular ring are arranged in parallel. The support assembly is arranged between the first protection circular ring and the second protection circular ring and used for limiting the balls, and the first protection circular ring and the second protection circular ring are oppositely installed through the fixing columns and the fixing screws. The inner shaft ring, the outer shaft ring, the balls and the protection assembly are used in a matched mode, the first protection circular ring and the second protection circular ring can be assembled on the two sides of the inner shaft ring and the outer shaft ring through the fixing columns and the fixing screws, the inner shaft ring and the outer shaft ring can be subjected to compression resistance protection, and under the effect of the support assembly, the protection effect is good. The inner collar, the outer collar, and the balls may be assembled.

Description

Technical Field

[0001] The utility model relates to the field of bearings, and particularly relates to a bearing for a mechanical door handle. Background Art

[0002] A bearing is an important component in mechanical equipment. Its main function is to support a mechanical rotating body, reduce the friction coefficient during movement, and ensure the rotational accuracy. The bearing realizes the transmission of load by rolling elements rolling between the inner and outer rings.

[0003] When installing a mechanical door handle, in order to reduce the resistance of the handle rotation, a bearing is installed at the transmission shaft rod of the handle to reduce its frictional resistance. Due to the limitation of the installation space of the mechanical door handle, the width dimension of the installed bearing is usually thin, and when installing the mechanical door handle, the inner and outer rings may be extruded, resulting in a reduction in the bearing performance, so there are certain defects. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bearing for a mechanical door handle to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A bearing for a mechanical door handle includes an inner shaft ring, an outer shaft ring, and rolling balls. The rolling balls are arranged between the inner shaft ring and the outer shaft ring;

[0006] A protective component is arranged outside the inner shaft ring and the outer shaft ring. The protective component includes:

[0007] A first protective ring and a second protective ring. The inner shaft ring and the outer shaft ring are arranged between the first protective ring and the second protective ring;

[0008] A bracket component is arranged between the first protective ring and the second protective ring. The bracket component is used for limiting the rolling balls;

[0009] A fixing column and a fixing screw. The first protective ring and the second protective ring are relatively installed through the fixing column and the fixing screw.

[0010] Preferably, the fixing column is located between the inner shaft ring and the outer shaft ring. One end of the fixing column is fixedly connected to the first protective ring. A screw hole is formed on the back of the second protective ring. The fixing screw passes through the screw hole and is threadedly connected to the fixing column.

[0011] Preferably, the length of the fixing column is greater than the width of the inner shaft ring and the outer shaft ring. The inner diameter of the first protective ring is greater than the inner diameter of the inner shaft ring, and the outer diameter of the first protective ring is less than the outer diameter of the outer shaft ring.

[0012] Preferably, the bracket assembly includes:

[0013] A first clamping member, which is installed on the side of the first protective ring facing the ball;

[0014] A second clamping member, which is installed on the side of the second protective ring facing the ball, and arc grooves corresponding to the balls are formed on the opposite sides of the first clamping member and the second clamping member.

[0015] Preferably, connecting columns are fixedly connected to the opposite sides of the first clamping member and the second clamping member, through holes are formed on one side of the first protective ring and the second protective ring, and the outer wall of the connecting column is slidably sleeved with the through holes.

[0016] Preferably, the bracket assembly further includes:

[0017] A positioning rod, one side of which is fixedly connected to the second clamping member, a positioning groove is formed on the side of the first clamping member facing the second clamping member, and the outer wall of the positioning rod is slidably clamped with the inner cavity of the positioning groove;

[0018] Positioning blocks, which are fixedly connected to both sides of the bottom of the first clamping member and both sides of the bottom of the second clamping member, and one side of the positioning block is in contact with the fixed column.

[0019] Preferably, an oil injection hole is formed at one end of the connecting column, an oil inlet hole communicating with the oil injection hole is formed on the front surface of the first clamping member, and a rubber plug is fixedly sleeved at one end of the inner cavity of the oil injection hole.

[0020] Preferably, first sealing rings and second sealing rings are fixedly connected to the opposite sides of the first protective ring and the second protective ring, annular grooves are formed on the side edges of the inner shaft ring and the outer shaft ring, and the outer walls of the first sealing ring and the second sealing ring are respectively slidably sleeved with the inner cavities of the annular grooves.

[0021] The technical effects and advantages of the present utility model:

[0022] The present utility model utilizes the cooperation of the inner shaft ring, the outer shaft ring, the balls and the protective assembly. The protective assembly includes a first protective ring, a second protective ring, a bracket assembly, a fixed column and a fixing screw. The first protective ring and the second protective ring can be assembled on both sides of the inner shaft ring and the outer shaft ring through the fixed column and the fixing screw, which can provide compressive protection for the inner shaft ring and the outer shaft ring, and under the action of the bracket assembly, the inner shaft ring, the outer shaft ring and the balls can be assembled. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0024] Figure 2This is a schematic diagram of the internal structure of a part of the front side of the utility model.

[0025] Figure 3 This is a schematic diagram of the internal structure of a part of the top side of the utility model.

[0026] Figure 4 This is a schematic diagram of the internal structure of a part of the side of the utility model.

[0027] In the figure: 1, inner shaft ring; 2, outer shaft ring; 3, ball; 4, protection component; 41, first protection ring; 42, second protection ring; 43, bracket component; 431, first clamping part; 432, second clamping part; 433, connecting column; 434, positioning rod; 435, positioning block; 436, oil injection hole; 437, oil inlet hole; 438, rubber plug; 44, fixing column; 45, fixing screw; 46, first sealing ring; 47, second sealing ring. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] The present utility model provides a bearing for a mechanical door handle as shown in Figures 1-4 , which includes an inner shaft ring 1, an outer shaft ring 2 and balls 3. The balls 3 are arranged between the inner shaft ring 1 and the outer shaft ring 2. A protection component 4 is arranged outside the inner shaft ring 1 and the outer shaft ring 2. The protection component 4 includes a first protection ring 41, a second protection ring 42, a bracket component 43, a fixing column 44 and a fixing screw 45. The inner shaft ring 1 and the outer shaft ring 2 are arranged between the first protection ring 41 and the second protection ring 42. The bracket component 43 is arranged between the first protection ring 41 and the second protection ring 42. The bracket component 43 is used to limit the balls 3. Under the action of the bracket component 43, the stability of multiple balls 3 installed between the inner shaft ring 1 and the outer shaft ring 2 can be ensured. The first protection ring 41 and the second protection ring 42 are relatively installed through the fixing column 44 and the fixing screw 45. Under the action of the fixing column 44, the first protection ring 41 and the second protection ring 42 can provide compressive protection for both sides of the inner shaft ring 1 and the outer shaft ring 2.

[0030] Further, the fixing column 44 is located between the inner shaft ring 1 and the outer shaft ring 2. One end of the fixing column 44 is fixedly connected to the first protective ring 41. A screw hole is formed in the back surface of the second protective ring 42. The fixing screw 45 passes through the screw hole and is threadedly connected to the fixing column 44. The length of the fixing column 44 is greater than the widths of the inner shaft ring 1 and the outer shaft ring 2, that is, the distance between the first protective ring 41 and the second protective ring 42 is greater than the widths of the inner shaft ring 1 and the outer shaft ring 2. The inner diameters of the first protective ring 41 and the second protective ring 42 are greater than the inner diameter of the inner shaft ring 1, and the outer diameters of the first protective ring 41 and the second protective ring 42 are smaller than the outer diameter of the outer shaft ring 2. Thus, the inner and outer diameters of the first protective ring 41 and the second protective ring 42 installed thereon will not affect the normal installation and use of the inner shaft ring 1 and the outer shaft ring 2.

[0031] In particular, the bracket assembly 43 includes a first clamping member 431 and a second clamping member 432. The first clamping member 431 is installed on the side of the first protective ring 41 facing the ball 3, and the second clamping member 432 is installed on the side of the second protective ring 42 facing the ball 3. Arc grooves corresponding to the ball 3 are formed on the opposite sides of the first clamping member 431 and the second clamping member 432. Thus, the first clamping member 431 and the second clamping member 432 can ensure the stability of the position of the ball 3 installed between the inner shaft ring 1 and the outer shaft ring 2. Connecting columns 433 are fixedly connected to the opposite sides of the first clamping member 431 and the second clamping member 432. Through holes are formed on one side of the first protective ring 41 and the second protective ring 42. The outer wall of the connecting column 433 is slidably sleeved with the through hole. The first clamping member 431 and the second clamping member 432 are respectively assembled and docked with the first protective ring 41 and the second protective ring 42 through the connecting column 433. Thus, it is convenient to replace and maintain the damaged first clamping member 431 and the second clamping member 432.

[0032] Further, the bracket assembly 43 further includes a positioning rod 434 and a positioning block 435. One side of the positioning rod 434 is fixedly connected to the second clamping member 432. A positioning groove is formed on the side of the first clamping member 431 facing the second clamping member 432. The outer wall of the positioning rod 434 is slidably clamped with the inner cavity of the positioning groove. The positioning rod 434 can ensure the stability of the docking of the first clamping member 431 and the second clamping member 432. The two sides of the bottom of the first clamping member 431 and the two sides of the bottom of the second clamping member 432 are fixedly connected to the positioning block 435. One side of the positioning block 435 is attached to the fixing column 44. The fixing column 44 can squeeze and position the first clamping member 431 and the second clamping member 432 through the positioning block 435. Thus, the stability of the installation of the first clamping member 431 and the second clamping member 432 is ensured again.

[0033] Further, an oil injection hole 436 is formed at one end of one of the connecting columns 433, and an oil inlet hole 437 communicating with the oil injection hole 436 is formed on the front surface of the first clamping member 431. One end of the inner cavity of the oil injection hole 436 is fixedly sleeved with a rubber plug 438. By passing a syringe needle through the rubber plug 438, lubricating oil can be injected between the inner shaft ring 1 and the outer shaft ring 2. First sealing rings 46 and second sealing rings 47 are fixedly connected to the opposite sides of the first protective ring 41 and the second protective ring 42 respectively. Annular grooves are formed on the sides of the inner shaft ring 1 and the outer shaft ring 2. The outer walls of the first sealing ring 46 and the second sealing ring 47 are respectively slidably sleeved in the inner cavities of the annular grooves. The first sealing ring 46 and the second sealing ring 47 can improve the sealing performance between the inner shaft ring 1, the outer shaft ring 2, the first protective ring 41 and the second protective ring 42.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bearing for a mechanical door handle, comprising an inner shaft ring (1), an outer shaft ring (2) and balls (3), wherein the balls (3) are arranged between the inner shaft ring (1) and the outer shaft ring (2); It is characterized in that A protective component (4) is arranged outside the inner shaft ring (1) and the outer shaft ring (2), and the protective component (4) comprises: A first protective circular ring (41) and a second protective circular ring (42), and the inner shaft ring (1) and the outer shaft ring (2) are arranged between the first protective circular ring (41) and the second protective circular ring (42); A bracket component (43), which is arranged between the first protective circular ring (41) and the second protective circular ring (42), and the bracket component (43) is used for limiting the balls (3); Fixing columns (44) and fixing screws (45), and the first protective circular ring (41) and the second protective circular ring (42) are relatively installed through the fixing columns (44) and the fixing screws (45).

2. A bearing for a mechanical door handle according to claim 1, characterized in that The fixing column (44) is located between the inner shaft ring (1) and the outer shaft ring (2). One end of the fixing column (44) is fixedly connected to the first protective circular ring (41). A screw hole is formed in the back surface of the second protective circular ring (42), and the fixing screw (45) passes through the screw hole and is threadedly connected to the fixing column (44).

3. The bearing for a mechanical door handle according to claim 2, wherein, The length of the fixing column (44) is greater than the widths of the inner shaft ring (1) and the outer shaft ring (2). The inner diameter of the first protective circular ring (41) is greater than the inner diameter of the inner shaft ring (1), and the outer diameter of the first protective circular ring (41) is smaller than the outer diameter of the outer shaft ring (2).

4. A bearing for a mechanical door handle according to claim 1, characterized in that, The bracket component (43) comprises: A first clamping member (431), which is installed on the side of the first protective circular ring (41) facing the balls (3); A second clamping member (432), which is installed on the side of the second protective circular ring (42) facing the balls (3). Arc grooves corresponding to the balls (3) are formed on the opposite sides of the first clamping member (431) and the second clamping member (432).

5. A bearing for a mechanical door handle according to claim 4, characterized in that, Connecting columns (433) are fixedly connected to the opposite sides of the first clamping member (431) and the second clamping member (432). Through holes are formed on one side of the first protective circular ring (41) and the second protective circular ring (42), and the outer walls of the connecting columns (433) are slidably sleeved with the through holes.

6. A bearing for a mechanical door handle according to claim 5, characterized in that, The bracket component (43) further comprises: A positioning rod (434), one side of which is fixedly connected to the second clamping member (432). A positioning groove is formed on the side of the first clamping member (431) facing the second clamping member (432), and the outer wall of the positioning rod (434) is slidably clamped with the inner cavity of the positioning groove; Positioning blocks (435), which are fixedly connected to both sides of the bottom of the first clamping member (431) and both sides of the bottom of the second clamping member (432), and one side of the positioning blocks (435) is attached to the fixing column (44).

7. A bearing for a mechanical door handle according to claim 6, characterized in that, One end of the connecting column (433) is provided with an oil injection hole (436), a front surface of the first clamping member (431) is provided with an oil inlet hole (437) communicating with the oil injection hole (436), and one end of an inner cavity of the oil injection hole (436) is fixedly sleeved with a rubber plug (438).

8. A bearing for a mechanical door handle according to claim 1, characterized in that, One side of the first protective ring (41) and the second protective ring (42) which face each other are fixedly connected with a first sealing ring (46) and a second sealing ring (47) respectively. Annular grooves are formed on side edges of the inner shaft ring (1) and the outer shaft ring (2). Outer walls of the first sealing ring (46) and the second sealing ring (47) are respectively slidably sleeved with inner cavities of the annular grooves.

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