Line casting device and damping supporting leg thereof
By designing a shock absorbing foot of the line projector including support, movable parts, elastic parts and feet, the problem of the lack of shock absorbing members of the existing line projector feet is solved, and effective protection and accuracy maintenance of the line projector is achieved. .
Patent Information
- Application Number
- CN202323587807.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The existing line projector feet lack shock-absorbing components, resulting in a decrease in the accuracy and stability of the internal components of the line projector under strong impact, and there is a risk of falling.
A shock absorbing foot including a support member, a movable member, an elastic member and a foot is designed to buffer the impact force through repeated compression and stretching of the elastic member to ensure that the foot can stably support the line projector under impact.
Through the design of shock absorbing feet, it can effectively buffer the impact force brought by falling, protect the accuracy and stability of the internal components of the line projector, and extend the service life of the feet.
Smart Images
Figure CN222503382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a line-casting instrument, in particular to a line-casting instrument and a shock-absorbing support foot thereof. Background Art
[0002] The laser line projector is called a laser marking instrument or a laser level. The laser line projector emits a laser beam, which passes through a prism light guide system to form a laser surface to project horizontal and plumb laser lines, ultimately achieving the purpose of measurement.
[0003] The existing line-casting instrument needs to be supported by legs, which are generally connected to the base of the line-casting instrument by special-shaped bolts. In many cases, the line-casting instrument needs to be placed at a high place for use, so there is a risk of the line-casting instrument falling from a high place. The existing line-casting instrument legs lack shock-absorbing components, so that the internal components of the line-casting instrument will suddenly swing in a large arc under strong impact, resulting in reduced accuracy and stability of the internal components of the line-casting instrument.
[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content
[0005] The utility model aims to provide a shock-absorbing support foot of a line-casting instrument, which can buffer the impact force on the shock-absorbing support foot through repeated compression and stretching of an elastic member.
[0006] To achieve the above-mentioned purpose, the utility model provides a shock-absorbing support foot for a line-casting instrument, comprising a support member, a movable member, an elastic member and a support foot. The support member is arranged on the line-casting instrument, and a receiving cavity is arranged on the support member. The movable member is arranged in the receiving cavity and can move up and down. The elastic member is arranged in the receiving cavity, one end of the elastic member abuts against the bottom wall of the receiving cavity, and the other end of the elastic member abuts against the movable member. One end of the support foot is connected to the movable member.
[0007] In one or more embodiments, the shock-absorbing support foot of the line-casting instrument further includes a limiting member, which is fixed in the accommodating cavity and is located on a side of the movable member away from the elastic member.
[0008] In one or more embodiments, the limiting member is a retaining spring, and a retaining spring groove for accommodating part of the limiting member is provided in the accommodating cavity.
[0009] In one or more embodiments, the movable part includes a movable shaft and a movable sheet. The movable sheet is arranged at one end of the movable shaft away from the bottom wall of the accommodating cavity. One end of the elastic part abuts against the bottom wall of the accommodating cavity, and the other end of the elastic part abuts against the movable sheet. The elastic part is sleeved on the movable shaft.
[0010] In one or more embodiments, a plurality of protrusions are arranged around the movable sheet in the circumference, a plurality of movable grooves extending outward from the accommodating cavity are arranged in the accommodating cavity, each protrusion is snapped into the corresponding movable groove, and the height of the movable groove is greater than the thickness of the protrusion.
[0011] In one or more embodiments, the support leg further includes a bolt connected to the movable part.
[0012] In one or more embodiments, the bolt includes a first connecting column and a second connecting column, a matching portion is provided on the support leg, threaded holes are provided on the matching portion and the movable part, and the matching portion and the movable part are respectively connected to the first connecting column and the second connecting column through the threaded holes.
[0013] In one or more embodiments, the elastic member is a spring.
[0014] On one hand, the utility model further provides a line casting instrument, comprising a plurality of the above-mentioned shock-absorbing supporting feet.
[0015] In one or more embodiments, the line casting instrument further includes a line casting instrument body and a base, a plurality of shock-absorbing feet are arranged around one side of the base, and the line casting instrument body is installed on the other side of the base.
[0016] Compared with the prior art, the shock-absorbing foot of the line-casting instrument according to one embodiment of the utility model can buffer the impact force of the shock-absorbing foot by repeatedly compressing and stretching the internal elastic member, and the internal components of the shock-absorbing foot are easy to disassemble, which is also conducive to the maintenance of the shock-absorbing foot. In addition, the line-casting instrument according to one embodiment of the utility model can use the shock-absorbing foot to stably support the body of the line-casting instrument to ensure the accuracy of the line-casting, and can also use the shock-absorbing foot to buffer the impact force caused by falling to the ground, so as to protect the body of the line-casting instrument. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram of a line casting instrument according to one embodiment of the utility model;
[0019] Figure 2 This is a schematic structural diagram of a shock-absorbing support foot according to an embodiment of the utility model;
[0020] Figure 3 A cross-sectional view of a shock-absorbing support foot according to an embodiment of the utility model;
[0021] Figure 4 It is a schematic structural diagram of a base and a support member according to an embodiment of the utility model.
[0022] Among them, 1. shock-absorbing support foot, 11. supporting member, 111. accommodating cavity, 112. movable groove, 113. retaining ring groove, 12. elastic member, 13. movable member, 131. movable shaft, 132. movable sheet, 133. protrusion, 14. limiting member, 15. support foot, 151. matching part, 152. bolt, 1521. first connecting column, 1522. second connecting column, 2. line casting instrument body, 3. base. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0024] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.
[0025] like Figure 1-Figure 4 As shown, the shock-absorbing support leg 1 of the line-casting instrument according to one embodiment of the utility model comprises a support member 11, a movable member 13, an elastic member 12 and a support leg 15. The support member 11 is arranged on the line-casting instrument, and a receiving cavity 111 is provided on the support member 11. The movable member 13 is arranged in the receiving cavity 111 and can move linearly in the receiving cavity 111. The elastic member 12 is sleeved on the movable member 13, one end of the elastic member 12 abuts against the bottom wall of the receiving cavity 111, and the other end of the elastic member 12 abuts against the movable member 13. One end of the support leg 15 is connected to the movable member 13.
[0026] In the above embodiment, when the line casting instrument falls from a height and the support leg 15 contacts the ground, the support leg 15 is impacted, driving the movable member 13 to move in the accommodating chamber 111, and then the elastic member 12 is repeatedly compressed and stretched to buffer the impact force brought by the support leg 15. In addition, the collision between the movable member 13 and the elastic member 12 in the accommodating chamber 111 will not be too severe, ensuring that the movable member 13 and the elastic member 12 can have a certain service life, so that the support leg 15 can still maintain a good supporting and positioning function after being impacted.
[0027] The shock-absorbing support foot of the line-casting instrument in one embodiment of the utility model further includes a limiter 14, which is fixed in the accommodating cavity 111 and is located on the side of the movable part 13 away from the elastic part 12, and the matching portion 151 passes through the limiter 14. The limiter 14 serves to limit the position of the movable part 13, and the limiter 14 can prevent the movable part 13 from being separated from the accommodating cavity 111, thereby preventing the movable part 13 from moving too much. Moreover, after the limiter 14 is provided, it is convenient to install the movable part 13 and the elastic part 12 into the accommodating cavity 111 of the support part 11.
[0028] Further, such as Figure 3 and Figure 4 As shown, the limiting member 14 is a spring clip, and a spring clip groove 113 for accommodating part of the limiting member 14 is provided in the accommodating cavity 111. The spring clip groove 113 is used to fix the position of the limiting member 14, so that the limiting member 14 can limit the moving range of the movable member 13 and prevent the movable member 13 from popping out of the accommodating cavity 111 during the movement.
[0029] In order to facilitate the disassembly and assembly of the movable member 13 and the elastic member 12, Figure 2 and Figure 3 As shown, the movable member 13 includes a movable shaft 131 and a movable sheet 132. The movable sheet 132 is arranged at one end of the movable shaft 131 away from the bottom wall of the accommodating cavity 111. One end of the elastic member 12 abuts against the bottom wall of the accommodating cavity 111, and the other end of the elastic member 12 abuts against the movable sheet 132. The elastic member 12 is sleeved on the movable shaft 131. After the movable shaft 131 and the movable sheet 132 are arranged, it is possible to avoid directly fixing the elastic member 12 to the movable member 13. Instead, the elastic member 12 is sleeved on the movable shaft 131, and the end of the elastic member 12 is blocked by the movable sheet 132, thereby improving the installation efficiency of the movable member 13 and the elastic member 12. In addition, the movable shaft 131 can also play a guiding role, reducing the amplitude of the left-right swing of the elastic member 12 after being subjected to force.
[0030] In one embodiment, in order to limit the moving path of the movable member 13 so that the movable member 13 can only move along its own axis, a plurality of protrusions 133 are provided around the circumference of the movable sheet 132, and a plurality of movable grooves 112 extending to the outside of the accommodating cavity 111 are provided in the accommodating cavity 111, and each protrusion 133 is clamped in the corresponding movable groove 112, and the height of the movable groove 112 is greater than the thickness of the protrusion 133. The movable groove 112 can be used to limit the protrusion 133, so that the protrusion 133 can only move in the movable groove 112, and then the movable member 13 can only move along its own axis, so as to prevent the movable member 13 from deviating from its own axis when moving, and improve the stability of the movable member 13 and the elastic member 12.
[0031] In one embodiment, the support leg 15 further includes a bolt 152, and the bolt 152 is connected to the movable member 13. Of course, the support leg 15 is connected to the movable member 13 by the bolt 152 for easy installation and removal, so the fixed connection method of the support leg 15 and the movable member 13 is not limited to the above solution.
[0032] Further, the bolt 152 includes a first connecting column 1521 and a second connecting column 1522, the first connecting column 1521 and the second connecting column 1522 are provided with threads, the support leg 15 is provided with a matching portion 151, the matching portion 151 and the movable member 13 are provided with threaded holes, and the matching portion 151 and the movable member 13 are respectively connected to the first connecting column 1521 and the second connecting column 1522 through the threaded holes. Preferably, the cross-sectional dimension of the second connecting column 1522 can be larger than the cross-sectional dimension of the first connecting column 1521, and at the connection between the movable member 13 and the matching portion 151, the end dimension of the movable member 13 can be larger than the end dimension of the matching portion 151, so that the end of the matching portion 151 can completely abut against the movable member 13, which is conducive to the movable member 13 balancing the impact force brought by the support leg 15.
[0033] Of course, the connection method between the support leg 15 and the movable part 13 is not limited to the above solution, and riveting, welding, clamping, gluing, and integrated molding can also be used.
[0034] In one embodiment, the elastic member 12 is a spring. Of course, the elastic member 12 may also be other elastic buffer components, such as elastic sponge, rubber spring, etc.
[0035] like Figure 1-Figure 4 As shown, a line-casting instrument according to one embodiment of the present invention comprises a plurality of the above-mentioned shock-absorbing feet 1, a line-casting instrument body 2 and a base 3, wherein the plurality of shock-absorbing feet 1 are arranged around one side of the base 3, and the line-casting instrument body 2 is installed on the other side of the base 3.
[0036] In the above embodiment, the shock-absorbing support foot 1 can stably support the line-casting instrument body 2, so that the line-casting instrument body 2 can perform the line-casting work normally and ensure the line-casting accuracy. When the line-casting instrument falls from a high place, the shock-absorbing support foot 1 can timely buffer the impact force caused by the fall to the ground and protect the line-casting instrument body 2.
[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A shock-absorbing support foot for a line-casting instrument, characterized in that: include: A support member (11) is arranged on the line casting instrument, and a receiving cavity (111) is provided on the support member (11); A movable member (13) is disposed in the accommodating cavity (111) and is movable up and down; An elastic member (12) is disposed in the accommodating cavity (111), one end of the elastic member (12) abuts against the bottom wall of the accommodating cavity (111), and the other end of the elastic member (12) abuts against the movable member (13); and A support leg (15) has one end connected to the movable member (13).
2. The shock-absorbing foot of the line-casting instrument as claimed in claim 1, characterized in that: It also comprises a limiting member (14), which is fixed in the accommodating cavity (111) and is located on a side of the movable member (13) away from the elastic member (12).
3. The shock-absorbing foot of the line-casting instrument as claimed in claim 2, characterized in that: The limiting member (14) is a retaining spring, and a retaining spring groove (113) for accommodating part of the limiting member (14) is provided in the accommodating cavity (111).
4. The shock-absorbing foot of the line-casting instrument as claimed in claim 1, characterized in that: The movable member (13) comprises a movable shaft (131) and a movable sheet (132); the movable sheet (132) is arranged at one end of the movable shaft (131) away from the bottom wall of the accommodating cavity (111); one end of the elastic member (12) abuts against the bottom wall of the accommodating cavity (111); the other end of the elastic member (12) abuts against the movable sheet (132); and the elastic member (12) is sleeved on the movable shaft (131).
5. The shock-absorbing foot of the line-casting instrument as claimed in claim 4, characterized in that: A plurality of protrusions (133) are arranged around the circumference of the movable sheet (132); a plurality of movable grooves (112) extending toward the outside of the accommodating cavity (111) are arranged in the accommodating cavity (111); each of the protrusions (133) is snap-fitted into a corresponding movable groove (112); and the height of the movable groove (112) is greater than the thickness of the protrusion (133).
6. The shock-absorbing support foot of the line-casting instrument as claimed in claim 1, characterized in that: The support foot (15) further comprises a bolt (152), and the bolt (152) is connected to the movable part (13).
7. The shock-absorbing foot of the line-casting instrument as claimed in claim 6, characterized in that: The bolt (152) comprises a first connecting column (1521) and a second connecting column (1522); the support leg (15) is provided with a matching portion (151); the matching portion (151) and the movable member (13) are provided with threaded holes; the matching portion (151) and the movable member (13) are respectively connected to the first connecting column (1521) and the second connecting column (1522) through the threaded holes.
8. The shock-absorbing foot of the line-casting instrument as claimed in claim 1, characterized in that: The elastic member (12) is a spring.
9. A line casting instrument, characterized in that: The invention comprises a plurality of shock-absorbing feet of the line casting instrument as claimed in any one of claims 1 to 8.
10. The line casting instrument according to claim 9, characterized in that: It also comprises a line casting instrument body (2) and a base (3), wherein a plurality of shock-absorbing legs are arranged around one side of the base (3), and the line casting instrument body (2) is installed on the other side of the base (3).