Pendulum body mechanism and swinger

Abstract

The utility model relates to a pendulum body mechanism and a swinger. The pendulum body mechanism comprises a rotating head, a pendulum body structure and a locking structure, the rotating head comprises an outer sleeve and an inner sleeve, two ends of an inner cavity of the outer sleeve in the axial direction are respectively provided with a stopping part, and the inner sleeve is arranged in the inner cavity of the outer sleeve and is stopped between the two stopping parts; the pendulum body structure comprises a connecting shaft and a pendulum body, one end of the connecting shaft is connected with the pendulum body, the other end of the connecting shaft extends into the inner sleeve, and a positioning platform is arranged on the outer side wall of the connecting shaft and stopped at the end of the inner sleeve. The locking structure is detachably connected to the connecting shaft and the inner sleeve and used for limiting the connecting shaft to be separated from the inner sleeve in the axial direction of the connecting shaft. The scheme can ensure that the axis of the rotating head coincides with the axis of the pendulum body, facilitates subsequent laser light path adjustment, and is simple in structure and easy and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of sweepers, in particular to a swing mechanism and a sweeper. Background Art

[0002] A leveling instrument is an instrument that provides a plane or straight line reference. It works with a detector to control the horizontal height of any measuring point within a certain radius. It can combine measurement with construction to achieve construction automation and is widely used in various civil engineering construction occasions.

[0003] For example, patent CN 217442559 U discloses a slope liquid crystal laser leveler, which includes a shell, a base and a swing mechanism arranged between the shell and the base. It realizes sweeping an inclined plane through digital settings, solving the problem that the existing leveler can only scan horizontal planes and vertical planes, and broadening the scope of use of the leveler.

[0004] However, the pendulum body and the connecting shaft in the existing patents are generally arranged in sections. During assembly, the parallelism of the docking positioning surfaces does not meet the assembly requirements, which results in the axis center of the rotating head not coinciding with the axis center of the pendulum body and the direction being random, which brings inconvenience to the subsequent laser optical path adjustment. Utility Model Content

[0005] In view of this, it is necessary to provide a pendulum mechanism and a leveling instrument to solve the technical problem that the pendulum body and the connecting shaft are arranged in sections in the prior art, and the parallelism of the docking positioning surfaces does not meet the assembly requirements during assembly, which leads to the axis center of the rotating head not coinciding with the axis center of the pendulum body and the direction being random, causing inconvenience to the subsequent laser optical path adjustment.

[0006] The utility model provides a swing body mechanism, which comprises:

[0007] The rotating head comprises an outer sleeve and an inner sleeve, wherein the inner cavity of the outer sleeve is provided with stoppers at both ends in the axial direction, and the inner sleeve is placed in the inner cavity of the outer sleeve and is stopped between the two stoppers;

[0008] A pendulum structure, comprising a connecting shaft and a pendulum, wherein one end of the connecting shaft is connected to the pendulum, and the other end extends into the inner sleeve, and a positioning platform is provided on the outer wall thereof, and the positioning platform stops at the end of the inner sleeve; and

[0009] The locking structure is detachably connected to the connecting shaft and the inner sleeve to limit the connecting shaft from being separated from the inner sleeve along its axial direction.

[0010] Optionally, the connecting shaft is provided with a locking channel along its axial direction, and one end of the locking channel away from the pendulum body is open and provided with an internal thread;

[0011] The locking structure includes a locking column, one end of which is provided with an external thread, and the other end is provided with a limit platform extending along its circumference. The end of the locking column with the external thread is screwed into the locking channel, and the limit platform is stopped at the end of the inner sleeve away from the positioning platform.

[0012] Optionally, the locking column is provided with a connecting channel, and the connecting channel connects the outside with the locking channel;

[0013] The pendulum body is provided with a receiving cavity connected to the locking channel, and the receiving cavity is used for placing the laser.

[0014] Optionally, the positioning platform is extended along the circumference of the connecting shaft.

[0015] Optionally, the inner sleeve includes a rotating spacer and two bearings, and the rotating spacer and the two bearings are respectively mounted outside the connecting shaft, and the two bearings are respectively located at both ends of the rotating spacer, and the bearing close to the pendulum body is positioned on the positioning platform, wherein the locking structure is connected to the connecting shaft and the bearing away from the pendulum body.

[0016] Optionally, the outer sleeve comprises a bearing sleeve and a locking plate, the locking plate is threadedly connected to one axial end of the bearing sleeve, one of the two stoppers is arranged on the locking plate, and the other is arranged on the bearing sleeve;

[0017] The inner sleeve is placed in a cavity formed by the bearing sleeve and the locking disk.

[0018] Optionally, the stopping portion is a stopping platform provided on the inner wall of the outer sleeve, and the stopping platform extends along the axial direction of the outer sleeve.

[0019] Optionally, the end surface of the positioning platform that is attached to the inner sleeve is a positioning surface, and the positioning surface is spaced apart at a side of the adjacent stopper away from the pendulum body to form an adjustment gap with the adjacent stopper;

[0020] The rotating head further comprises an elastic member, which is arranged in the adjustment gap and connected to the inner sleeve and the adjacent stopper.

[0021] Optionally, a pressing platform is provided on the outer side of one end of the inner sleeve positioned on the positioning platform along its circumference;

[0022] The elastic member is an elastic washer, which is arranged in a corrugated shape along its axial direction and is pressed between the pressing platform and the adjacent stopping portion.

[0023] In addition, the utility model also provides a swinging instrument, which includes the swinging body mechanism as described above.

[0024] Compared with the prior art, in the pendulum body mechanism provided by the utility model, the connecting shaft and the pendulum body are integrally arranged to avoid the situation where the parallelism of the positioning surfaces of the connecting shaft and the pendulum body are inconsistent, and the coincidence degree between the axis center of the rotating head and the axis center of the pendulum body is improved. At the same time, the positioning platform is arranged on the outer wall of the connecting shaft to position the inner sleeve, and is detachably connected to the connecting shaft and the inner sleeve through a locking structure, so that the positioning platform can be disassembled and replaced when the parallelism of the inner sleeve is inconsistent, thereby ensuring that the axis center of the rotating head coincides with the axis center of the pendulum body, which is convenient for subsequent laser optical path adjustment, and has a simple structure and is easy to operate.

[0025] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. 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:

[0027] Figure 1 A structural schematic diagram of an embodiment of the swing body mechanism provided by the utility model;

[0028] Figure 2 for Figure 1 A partial cross-sectional view of the middle swing body mechanism;

[0029] Figure 3 for Figure 1 Exploded view of the middle swing body mechanism;

[0030] Figure 4 for Figure 3 A cross-sectional view of the middle pendulum structure;

[0031] Figure 5 for Figure 3 A cross-sectional view of the middle jacket;

[0032] Figure 6 for Figure 3 Exploded view of the inner sleeve and locking post;

[0033] Figure 7 for Figure 2 A magnified schematic diagram of center A.

[0034] Description of reference numerals:

[0035] 100, pendulum mechanism; 1, rotating head; 11, outer sleeve; 111, stopper; 112, bearing sleeve; 113, locking disk; 12, inner sleeve; 121, rotary spacer; 122, bearing; 123, pressing platform; 2, pendulum structure; 21, connecting shaft; 21a, locking channel; 211, positioning platform; 212, positioning surface; 212a, adjustment gap; 22, pendulum; 22a, accommodating chamber; 3, locking structure; 31, locking column; 31a, connecting channel; 32, limit platform; 4, laser; 5, elastic member. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0037] See also Figures 1 to 7 The present pendulum mechanism 100 comprises a rotating head 1, a pendulum structure 2 and a locking structure 3; the rotating head 1 comprises an outer sleeve 11 and an inner sleeve 12, the inner cavity of the outer sleeve 11 is provided with stoppers 111 at both ends in the axial direction, the inner sleeve 12 is placed in the inner cavity of the outer sleeve 11 and is stopped between the two stoppers 111; the pendulum structure 2 comprises a connecting shaft 21 and a pendulum 22, one end of the connecting shaft 21 is connected to the pendulum 22, the other end extends into the inner sleeve 12, and a positioning platform 211 is provided on its outer wall, and the positioning platform 211 is stopped at the end of the inner sleeve 12; the locking structure 3 is detachably connected to the connecting shaft 21 and the inner sleeve 12, so as to limit the connecting shaft 21 from being separated from the inner sleeve 12 along its axial direction. It should be understood that in this solution, the connection between the connecting shaft 21 and the pendulum 22 is an integral connection.

[0038] In the pendulum body mechanism 100 provided by the utility model, the connecting shaft 21 and the pendulum body 22 are integrally arranged to avoid the situation that the parallelism of the positioning surfaces of the connecting shaft 21 and the pendulum body 22 are not consistent, and the coincidence degree between the axis center of the rotating head 1 and the axis center of the pendulum body 22 is improved. At the same time, the positioning platform 211 is arranged on the outer wall of the connecting shaft 21 to position the inner sleeve 12, and is detachably connected to the connecting shaft 21 and the inner sleeve 12 through the locking structure 3, so that the positioning platform 211 can be disassembled and replaced when the parallelism of the inner sleeve 12 is inconsistent, thereby ensuring that the axis center of the rotating head 1 coincides with the axis center of the pendulum body 22, which is convenient for the subsequent laser light path adjustment, and the structure is simple and easy to operate.

[0039] It should be noted that, in one embodiment, the locking structure 3 is configured in the form of a buckle and a slot, one of the buckle and the slot is provided on the inner sleeve 12, and the other is provided on the connecting shaft 21, so as to achieve detachability between the two.

[0040] In this embodiment, see Figure 2The connecting shaft 21 is provided with a locking channel 21a along its axial direction. The end of the locking channel 21a away from the pendulum body 22 is open and provided with an internal thread. The locking structure 3 includes a locking column 31. One end of the locking column 31 is provided with an external thread, and the other end is provided with a limiting platform 32 extending along its circumferential direction. The end of the locking column 31 with the external thread is screwed into the locking channel 21a, and the limiting platform 32 is stopped at the end of the inner sleeve 12 away from the positioning platform 211. In this solution, the limiting platform 32 cooperates with the inner sleeve 12 to limit the connection shaft 21 from being separated from the inner sleeve 12 in the direction close to the pendulum body 22; at the same time, the inner sleeve 12 and the connecting shaft 21 can be connected as a whole through the threaded cooperation between the locking column and the locking channel 21a, thereby preventing the connection shaft 21 from extending out of the inner sleeve 12 in the direction away from the pendulum body 22. In this way, the connecting shaft 21 is effectively prevented from moving axially relative to the inner sleeve 12, and the connecting shaft 21 and the inner sleeve 12 can be disassembled. The structure is simple and reliable, and the operation is easy.

[0041] Further, please refer to 6, the locking column 31 is provided with a connecting channel 31a, and the connecting channel 31a is connected to the outside and the locking channel 21a; the pendulum body 22 is provided with a receiving cavity 22a connected to the locking channel 21a, and the receiving cavity 22a is used to place the laser 4. In this embodiment, the locking column 31, the connecting shaft 21 and the cavity of the pendulum body 22 are connected, and the laser 4 is placed in the receiving cavity 22a of the pendulum body 22, which improves the space utilization of the leveling instrument and makes the overall structure more compact.

[0042] Furthermore, the positioning platform 211 is extended along the circumference of the connecting shaft 21. In this embodiment, the positioning platform 211 is extended along the circumference of the connecting shaft 21 to form a ring, so as to stably support the inner sleeve 12 and improve stability.

[0043] For further information, see Figure 4 The inner sleeve 12 includes a rotary spacer 121 and two bearings 122, which are respectively sleeved outside the connecting shaft 21, and the two bearings 122 are respectively located at both ends of the rotary spacer 121, and the bearing 122 close to the pendulum 22 is positioned on the positioning platform 211, wherein the locking structure 3 is connected to the connecting shaft 21 and the bearing 122 away from the pendulum 22. In this embodiment, the inner sleeve 12 is configured in the form of a rotary spacer 121 and two bearings 122, the rotary spacer 121 can play a good guiding role, and the bearings 122 can make the outer sleeve 11 stably rotate relative to the connecting shaft 21.

[0044] For further information, see Figure 5The outer sleeve 11 includes a bearing 122 sleeve 112 and a locking disk 113. The locking disk 113 is screwed to one end of the bearing 122 sleeve 112 in the axial direction. One of the two stoppers 111 is arranged on the locking disk 113, and the other is arranged on the bearing 122 sleeve 112. The inner sleeve 12 is placed in a cavity formed by the bearing 122 sleeve 112 and the locking disk 113. In this embodiment, the outer sleeve 11 is configured as a bearing 122 sleeve 112 and a locking disk 113 that are screwed together. In this way, the bearing 122 sleeve 112 and the locking disk 113 are detachably connected so that the internal structure can be repaired and replaced, thereby improving convenience. It should be understood that the screw connection structure between the bearing 122 sleeve 112 and the locking disk 113 is a combination of hole positions, bolts and nuts. This is a prior art and will not be described in detail here.

[0045] Similarly, in this embodiment, the stopper 111 is a stopper provided on the inner wall of the outer sleeve 11, and the stopper extends along the axial direction of the outer sleeve 11. In this solution, the two stopper portions 111 are respectively provided in the form of stoppers to effectively limit the inner sleeve 12 and prevent the inner sleeve 12 from axially separating from the outer sleeve 11, and the structure is simple and reliable.

[0046] For further information, see Figure 7 The end surface of the positioning platform 211 that is attached to the inner sleeve 12 is the positioning surface 212. The positioning surface 212 is arranged at a distance from the side of the adjacent stopper 111 away from the pendulum 22 to form an adjustment gap 212a with the adjacent stopper 111. The rotary head 1 also includes an elastic member 5, which is arranged in the adjustment gap 212a and connected to the inner sleeve 12 and the adjacent stopper 111. In this embodiment, an adjustment gap 212a is set between one end of the inner sleeve 12 close to the positioning platform 211 and the adjacent stopper, and the elastic member 5 is placed accordingly, so that the inner sleeve 12 has a certain adjustment stroke in the axial direction to compensate for the assembly size error and improve practicality.

[0047] Furthermore, a pressing platform 123 is provided on the outer side of one end of the inner sleeve 12 positioned on the positioning platform 211 along its circumference; the elastic member 5 is an elastic washer, which is arranged in a corrugated shape along its axial direction and is pressed between the pressing platform 123 and the adjacent stopper 111. In this embodiment, the elastic member 5 is arranged in the form of an elastic washer to apply an axial elastic force to the inner sleeve 12, and the structure is simple and reliable.

[0048] In addition, the present invention further provides a sweeping machine, which includes the swinging mechanism 100 as described in any one of the above items. It should be noted that the detailed structure of the swinging mechanism 100 of the sweeping machine can refer to the above-mentioned embodiment of the swinging mechanism 100, which will not be described in detail here; since the above-mentioned swinging mechanism 100 is used in the sweeping machine of the present invention, the embodiment of the sweeping machine of the present invention includes all technical solutions of all the above-mentioned embodiments of the swinging mechanism 100, and the technical effects achieved are also completely the same, which will not be described in detail here.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A swing mechanism, characterized in that: It includes: The rotating head comprises an outer sleeve and an inner sleeve, wherein the inner cavity of the outer sleeve is provided with stoppers at both ends in the axial direction, and the inner sleeve is placed in the inner cavity of the outer sleeve and is stopped between the two stoppers; A pendulum structure, comprising a connecting shaft and a pendulum, wherein one end of the connecting shaft is connected to the pendulum, and the other end extends into the inner sleeve, and a positioning platform is provided on the outer wall thereof, and the positioning platform stops at the end of the inner sleeve; and The locking structure is detachably connected to the connecting shaft and the inner sleeve to limit the connecting shaft from being separated from the inner sleeve along its axial direction.

2. The swing mechanism according to claim 1, characterized in that: The connecting shaft is provided with a locking channel along its axial direction, and one end of the locking channel away from the pendulum body is open and provided with an internal thread; The locking structure includes a locking column, one end of which is provided with an external thread, and the other end is provided with a limit platform extending along its circumference. The end of the locking column with the external thread is screwed into the locking channel, and the limit platform is stopped at the end of the inner sleeve away from the positioning platform.

3. The swing mechanism according to claim 2, characterized in that: The locking column is provided with a connecting channel, and the connecting channel connects the outside with the locking channel; The pendulum body is provided with a receiving cavity connected to the locking channel, and the receiving cavity is used for placing the laser.

4. The swing mechanism according to claim 1, characterized in that: The positioning platform is extended along the circumference of the connecting shaft.

5. The swing mechanism according to claim 1, characterized in that: The inner sleeve includes a rotating spacer and two bearings, and the rotating spacer and the two bearings are respectively sleeved outside the connecting shaft. The two bearings are respectively located at the two ends of the rotating spacer, and the bearing close to the pendulum body is positioned on the positioning platform, wherein the locking structure is connected to the connecting shaft and the bearing away from the pendulum body.

6. The swing mechanism according to claim 5, characterized in that: The outer sleeve includes a bearing sleeve and a locking plate, wherein the locking plate is threadedly connected to one end of the bearing sleeve in the axial direction, and one of the two stoppers is arranged on the locking plate, and the other is arranged on the bearing sleeve; The inner sleeve is placed in a cavity formed by the bearing sleeve and the locking disk.

7. The swing mechanism according to claim 1, characterized in that: The stopping portion is a stopping platform provided on the inner wall of the outer sleeve, and the stopping platform extends along the axial direction of the outer sleeve.

8. The swing mechanism according to claim 1, characterized in that: The end surface of the positioning platform that is attached to the inner sleeve is a positioning surface, and the positioning surface is spaced apart at a side of the adjacent stopper away from the pendulum body to form an adjustment gap with the adjacent stopper; The rotating head further comprises an elastic member, which is arranged in the adjustment gap and connected to the inner sleeve and the adjacent stopper.

9. The swing mechanism according to claim 8, characterized in that: The inner sleeve is positioned at one end of the positioning platform and is provided with a pressing platform along its circumference; The elastic member is an elastic washer, which is arranged in a corrugated shape along its axial direction and is pressed between the pressing platform and the adjacent stopping portion.

10. A leveling instrument, characterized in that: It comprises a pendulum mechanism as claimed in any one of claims 1 to 9.

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