Telescopic mechanism

Abstract

The invention provides a telescopic mechanism. The telescopic mechanism comprises a driving assembly, a cam assembly and a plurality of telescopic assemblies. The driving assembly is used for outputting rotation torque. The cam assembly is in driving connection with the driving assembly and comprises an abutting end arranged in a protruding mode. The cam assembly is driven by the driving assembly, so that the abutting end sequentially pushes the telescopic assemblies to stretch out. The driving assembly outputs rotating torque and transmits the rotating torque to the cam assembly, and the cam assembly moves relative to the telescopic assembly. The abutting end sequentially pushes the multiple telescopic assemblies to sequentially stretch out, and the multiple telescopic assemblies make contact with the part so that part of buckles of the part can be buckled till all the buckles are buckled. In other words, the buckling action is decomposed into multiple times, the external force acting on the buckle under the same time or one-time pressing action is dispersed, the deformation quantity of the part corresponding to each buckling action is small, the multiple times of deformation are generated respectively, the part can be restored to a better degree after deformation, and then the negative influence of the deformation on the part can be effectively relieved.

Description

Technical Field

[0001] The present application relates to the technical field of assembly jigs, and in particular to a telescopic mechanism capable of realizing step-by-step assembly. Background Art

[0002] When installing plastic product parts, snap-on connection is a very common installation and fixing method, which can achieve quick fixation of two different parts. When using snap-on connection to fix different parts, in order to ensure the firmness of the connection, the number of snaps is usually two or more.

[0003] When assembling parts connected by snap connections, the snap connections are made by manual or jig-type pressure to cause the snap connections to plastically deform. However, those skilled in the art will appreciate that since the snap connection process requires the application of external force to the parts to cause them to deform, especially when multiple snap connections are made at the same time, multiple external forces to which the multiple snap connections are subjected will act on the parts at the same time, causing the parts to be subjected to excessive force in a short period of time, which may lead to irreversible deformation of the parts, or excessive deformation that exceeds the tolerance range.

[0004] How to solve the above problems and provide a mechanism suitable for the installation of multi-buckle parts and which can effectively mitigate the negative impact of deformation is what technicians in this field need to consider. Summary of the invention

[0005] In order to solve the problems in the prior art, the embodiments of the present application provide a telescopic mechanism that is suitable for the installation of multiple buckle parts and can effectively mitigate the negative impact of deformation.

[0006] The embodiment of the present application provides a telescopic mechanism, comprising:

[0007] A drive assembly for outputting a rotational torque;

[0008] A cam assembly, which is drivingly connected to the driving assembly, and the cam assembly includes a protruding abutting end;

[0009] A plurality of telescopic components, wherein the cam component is driven by the driving component so that the abutting end sequentially pushes the plurality of telescopic components to extend.

[0010] In one embodiment, the driving assembly drives the cam assembly to rotate, and the abutting end contacts the plurality of telescopic assemblies in a time-sharing manner, and one abutting end contacts at most one telescopic assembly at the same time.

[0011] In one embodiment, the plurality of telescopic components are arranged at intervals, and the plurality of telescopic components are all located on a movement path of the abutting end when the cam component rotates.

[0012] In one embodiment, the telescopic mechanism further includes a bracket, and the plurality of telescopic components are respectively connected to the bracket, and the bracket is used to guide the extension direction of the telescopic components.

[0013] In one embodiment, the bracket includes a guide portion and a loading portion, the guide portion and the loading portion are spaced apart, the guide portion is provided with a plurality of guide holes, and the guide holes are used to allow the telescopic component to be movably disposed therein, and the driving component is connected to the loading portion.

[0014] In one embodiment, the telescopic component is columnar, and the two opposite ends of the telescopic component are respectively located on the opposite sides of the guide portion, the driving component is arranged on the side of the loading portion facing the guide portion, the cam assembly is connected to the driving component and is arranged on the side of the driving component facing the guide portion, and the supporting end is located on the side where the guide portion is located.

[0015] In one embodiment, the telescopic component includes a column, an elastic member and a blocking portion, the column is movably disposed in the guide hole, the blocking portion is fixedly connected to the column, the elastic member is supported between the guide portion and the blocking portion, and the elastic member is used to push the extended telescopic component to retract.

[0016] In one embodiment, the telescopic component includes a column, a roller and a pressure block, the roller and the pressure block are respectively arranged at two opposite ends of the column, the supporting end contacts the roller to push the column to extend, and the pressure block is used to perform a pressing action when the telescopic component is extended.

[0017] In one embodiment, the roller is rotatably connected to the column, the abutting end has a contact surface, the driving component drives the abutting end to move relative to the column, the contact surface contacts the roller and guides the roller to be offset from the abutting end via the contact surface.

[0018] In one embodiment, the abutting end protrudes toward the direction in which the telescopic component extends, and the contact surface is arc-shaped.

[0019] The telescopic mechanism of the present application is provided with a plurality of telescopic components, and the plurality of telescopic components can be extended to apply external force to the parts to realize the buckle engagement of the parts. The driving component outputs a rotational torque and transmits the rotational torque to the cam component connected thereto, and the cam component moves relative to the plurality of telescopic components. The abutting end sequentially pushes the plurality of telescopic components to extend in sequence, and each telescopic component contacts the parts and applies external force respectively, so that part of the buckle of the parts is buckled, and the plurality of telescopic components are extended in sequence to complete the buckle engagement of all the buckles of the parts. That is, the buckling action is decomposed into multiple times, and the external force acting on the buckle at the same time or in one pressing action is dispersed, and the deformation amount of the parts corresponding to each buckling action is small, and the multiple deformations occurring separately also enable the parts to recover to a better degree after deformation, thereby effectively mitigating the negative impact of deformation on the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of the telescopic mechanism provided in an embodiment of the present application, the parts to be fastened together, and the fixture for fixing the parts in a mating state.

[0021] Figure 2 This is a three-dimensional schematic diagram of the telescopic mechanism provided in an embodiment of the present application from a top view angle.

[0022] Figure 3 This is a three-dimensional schematic diagram of the telescopic mechanism provided in an embodiment of the present application when viewed from a bottom up angle.

[0023] Figure 4 A three-dimensional schematic diagram of a cam assembly of a telescopic mechanism provided in an embodiment of the present application.

[0024] Figure 5 A three-dimensional schematic diagram of the telescopic assembly of the telescopic mechanism provided in an embodiment of the present application.

[0025] Main component symbols

[0026] Telescopic mechanism 1

[0027] Bracket 11

[0028] Loading unit 111

[0029] Support column 112

[0030] Guide part 113

[0031] Guide hole 114

[0032] Drive assembly 12

[0033] Cam assembly 13

[0034] Plate 131

[0035] Abutment end 132

[0036] Contact surface 133

[0037] Telescopic components 14

[0038] Column 141

[0039] First end 1411

[0040] Second end 1412

[0041] Roller 142

[0042] Blocking portion 143

[0043] Elastic member 144

[0044] Briquetting 145

[0045] Part 2

[0046] First buckle 21

[0047] The second buckle 22

[0048] Jig 3

[0049] Pressing direction D1

[0050] Ring path R

[0051] Center axis AX1

[0052] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0053] The following description will refer to the accompanying drawings to more fully describe the content of the present application. The accompanying drawings show exemplary embodiments of the present application. However, the present application can be implemented in many different forms and should not be interpreted as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals represent identical or similar components. The terms used herein are only used for the purpose of describing specific exemplary embodiments and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to also include plural forms. In addition, when used herein, "including" and / or "comprising" and / or "having", integers, steps, operations, components and / or components, but do not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components and / or their groups. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as those generally understood by ordinary technicians in the field to which the present application belongs. In addition, unless explicitly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the relevant technology and the content of this application, and will not be interpreted as an idealized or overly formal meaning. The following will describe exemplary embodiments in conjunction with the accompanying drawings. It should be noted that the components depicted in the reference drawings are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar technical terms.

[0054] Usually, when assembling parts connected by snap connections, the snap connections are made by manual or jig-type pressure to cause the snap connections to plastically deform. However, those skilled in the art will appreciate that since the snap connection process requires the application of external force to the parts to cause them to deform, especially when multiple snap connections are engaged at the same time, the multiple snap connections will be subjected to external forces at multiple angles acting on the parts at the same time, causing the parts to be subjected to excessive force in a short period of time, which may lead to irreversible deformation of the parts, or excessive deformation that exceeds the tolerance range.

[0055] Therefore, the present application provides a telescopic mechanism, which includes a driving assembly, a cam assembly and a plurality of telescopic assemblies. The driving assembly is used to output a rotational torque. The cam assembly is drivingly connected to the driving assembly, and the cam assembly includes a protruding abutting end. The cam assembly is driven by the driving assembly, so that the abutting end sequentially pushes the plurality of telescopic assemblies to extend.

[0056] The telescopic mechanism of the present application is provided with a plurality of telescopic components, and the plurality of telescopic components can be extended to apply external force to the parts to realize the buckle engagement of the parts. The driving component outputs a rotational torque and transmits the rotational torque to the cam component connected thereto, and the cam component moves relative to the plurality of telescopic components. The abutting end sequentially pushes the plurality of telescopic components to extend in sequence, and each telescopic component contacts the parts and applies external force respectively, so that part of the buckle of the parts is buckled, and the plurality of telescopic components are extended in sequence to complete the buckle engagement of all the buckles of the parts. That is, the buckling action is decomposed into multiple times, and the external force acting on the buckle at the same time or in one pressing action is dispersed, and the deformation amount of the parts corresponding to each buckling action is small, and the multiple deformations occurring separately also enable the parts to recover to a better degree after deformation, thereby effectively mitigating the negative impact of deformation on the parts.

[0057] Those skilled in the art will understand that a “telescopic mechanism” refers to a mechanism in which at least a portion of the mechanism is able to move and displace.

[0058] Those skilled in the art will understand that “snap-on” refers to a structure that achieves a fixing effect by pressing.

[0059] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings.

[0060] like Figures 1 to 3 As shown, the embodiment of the present application provides a telescopic mechanism 1. The telescopic mechanism 1 includes a driving component 12, a cam component 13, a plurality of telescopic components 14 and a bracket 11, wherein the driving component 12 and the plurality of telescopic components 14 are arranged at intervals and are respectively connected to the bracket 11, and the cam component 13 is arranged between the driving component 12 and the plurality of telescopic components 14 and is drivingly connected to the driving component 12.

[0061] In one embodiment, the driving assembly 12 is used to output a rotation torque. The cam assembly 13 includes a protruding abutting end 132 , and the cam assembly 13 is driven by the driving assembly 12 so that the abutting end 132 pushes the multiple telescopic assemblies 14 to extend in sequence.

[0062] In one embodiment, the telescopic mechanism 1 cooperates with the part 2 to be fastened to realize the assembly of the part 2. The part 2 to be fastened can be fixed by the fixture 3 first, so that the part 2 to be fastened and the telescopic mechanism 1 are in a predetermined position, and the part 2 to be fastened is pushed by the multiple telescopic components 14 of the telescopic mechanism 1. The telescopic mechanism 1 and the fixture 3 apply forces in at least two directions to the part 2 to be fastened, so that the part 2 to be fastened is deformed by the force, thereby completing the fastening assembly process.

[0063] Specifically, before the assembly process starts: the part 2 to be pressed includes a first fastener 21 and a second fastener 22, the first fastener 21 is fixed to the fixture 3, and the second fastener 22 is arranged on one side of the first fastener 21; the telescopic mechanism 1 is arranged on the side of the second fastener 22 away from the first fastener 21, so that one end of the telescopic assembly 14 that is not pushed by the cam assembly 13 contacts the surface of the second fastener 22 or is in a posture of being about to contact. After the assembly process starts: the driving component 12 outputs a rotational torque to rotate the cam component 13, so that the supporting end 132 moves along an annular path R, and contacts with the ends of multiple telescopic components 14 away from the second latch 22 in turn, and pushes the end of the telescopic component 14 close to the second latch 22 to extend and press the second latch 22 along a downward direction D1 until the second latch 22 is engaged with at least one pair of matching latches on the first latch 21; the cam component 13 continues to move, contacts with subsequent telescopic components 14 in turn and pushes all telescopic components 14 to contact with the second latch 22, and completes the full engagement of the first latch 21 with the second latch 22.

[0064] It can be understood that the downward pressing direction D1 refers to the direction in which the telescopic assembly 14 is pushed by the cam assembly 13 to extend and press the first buckle 21. For the convenience of demonstration, in this embodiment, the downward pressing direction D1 is shown in the vertical downward direction as an example. The annular path R refers to the shape of the rotation trajectory of the abutting end 132. The annular path R may include the rotation direction. For the convenience of demonstration, in this embodiment, the annular path R is shown as a circle as an example. In other embodiments, the downward pressing direction D1 and the annular path R can also be other feasible or matching directions, and the annular path R can be clockwise or counterclockwise.

[0065] The telescopic mechanism 1 of the present application is provided with a plurality of telescopic components 14, which can be extended in sequence to apply external force to the part 2 to achieve the buckle of the part. The driving component 12 outputs a rotational torque and transmits the rotational torque to the cam component 13 connected thereto, and the cam component 13 rotates compared to the plurality of telescopic components 14. The abutting end 132 sequentially pushes the plurality of telescopic components 14 to extend in sequence, and each telescopic component 14 contacts the part 2 and applies external force respectively, so that part of the buckle of the part 2 is buckled, and the plurality of telescopic components 14 are extended in sequence to complete the buckle of all the buckles of the part 2. That is, the buckling action is decomposed into multiple times, and the external force acting on the buckle at the same time or in one pressing action is dispersed, and the deformation amount of the part 2 corresponding to each buckling action is small, and the multiple deformations occur separately, so that the part 2 can be restored to a better degree after deformation, thereby effectively mitigating the negative impact of deformation on the part 2.

[0066] In one embodiment, the plurality of telescopic components 14 are disposed at intervals, and the plurality of telescopic components 14 are all located on the movement path of the abutting end 132 when the cam component 13 rotates.

[0067] In one embodiment, the driving assembly 12 drives the cam assembly 13 to rotate, and the abutting end 132 contacts with a plurality of telescopic assemblies 14 in a time-sharing manner, and one abutting end 132 contacts with at most one telescopic assembly 14 at the same time.

[0068] In this embodiment, one cam assembly 13 is provided with a supporting end 132, and by rotating the cam assembly 13, one supporting end 132 can be respectively in contact with multiple telescopic assemblies 14. In other embodiments, one cam assembly 13 can also be provided with multiple supporting ends 132, and the number of the multiple supporting ends 132 is less than the number of the multiple telescopic assemblies 14.

[0069] It can be understood that the telescopic mechanism 1 of the present application realizes the step-by-step buckling process by setting a plurality of telescopic components 14. Therefore, the plurality of telescopic components 14 can be arranged at intervals so that each telescopic component 14 corresponds to at least one buckle on the part 2. The plurality of telescopic components 14 are all located on the movement path of the abutting end 132 when the cam component 13 rotates, and the cam component 13 can push the plurality of telescopic components 14 by rotating one circle.

[0070] In one embodiment, the bracket 11 includes a guide portion 113, a loading portion 111 and a plurality of support columns 112. The guide portion 113 and the loading portion 111 are spaced apart, and the plurality of support columns 112 are disposed between the guide portion 113 and the loading portion 111. The two ends of the spaced apart plurality of support columns 112 are respectively connected to the guide portion 113 and the loading portion 111 to fix the guide portion 113 and the loading portion 111.

[0071] In this embodiment, a plurality of telescopic components 14 are disposed on the guide portion 113, and the driving component 12 is connected to the loading portion 111 and disposed on the side of the loading portion 111 facing the guide portion 113. The cam component 13 is connected to the driving component 12 and disposed on the side of the driving component 12 facing the guide portion 113, and the abutting end 132 is located on the side where the guide portion 113 is located, so that the abutting end 132 can contact the guide portion 113.

[0072] It can be understood that the bracket 11 is used to fix the driving component 12 and the telescopic component 14 respectively, so that the relative position between the driving component 12 and the telescopic component 14 remains stable, thereby improving the stability of the telescopic mechanism 1.

[0073] In one embodiment, the position of the bracket 11 is fixed relative to the position of the fixture 3. For example, the bracket 11 can be fixed to the fixture 3 via a fixing structure (not shown) to improve the accuracy of the telescopic assembly 14 driving the first fastener 21 and the second fastener 22 to engage.

[0074] Further integration Figure 4As shown, in one embodiment, the cam assembly 13 further includes a plate body 131, and the abutting end 132 is connected to the plate body 131 and extends toward the side where the guide portion 113 is located. The distance between the telescopic assembly 14 and the plate body 131 is less than the height of the abutting end 132 protruding from the plate body 131.

[0075] In this embodiment, the outer contour of the plate body 131 can be circular, the plate body 131 can be disc-shaped, the central axis AX1 is the rotation center axis of the plate body 131, and the disc-shaped plate body 131 rotates along the annular path R with the central axis AX1 as the axis. The abutting end 132 is provided on one side of the plate body 131 and is located at the edge of the plate body 131, or the abutting end 132 and the central axis AX1 are in a mutually separated (or mutually spaced) posture. When the plate body 131 rotates along the annular path R with the central axis AX1 as the axis, the abutting end 132 also moves around the central axis AX1 along the annular path R. The abutting end 132 can protrude along the downward pressing direction D1 compared to the plate body 131, and the downward pressing direction D1 is parallel to the central axis AX1.

[0076] In one embodiment, the abutting end 132 has a contact surface 133 . The abutting end 132 protrudes in the direction in which the telescopic assembly 14 extends, and the contact surface 133 is arc-shaped.

[0077] It can be understood that the driving assembly 12 can be a slow rotating motor, and the driving assembly 12 drives the cam assembly 13 to rotate. Correspondingly, the movement process of the telescopic assembly 14 relative to the abutting end 132 should be first approaching and then moving away. The contact surface 133 is set to an arc shape, which can be a high arc in the middle and low arc on both sides, so that the process of the abutting end 132 approaching and moving away from the telescopic assembly 14 is smoother, thereby improving the stability of the telescopic mechanism 1 when working.

[0078] In one embodiment, a plurality of telescopic components 14 are respectively connected to the bracket 11 , and the bracket 11 is used to guide the extension direction of the telescopic components 14 .

[0079] In this embodiment, the guide portion 113 is provided with a plurality of guide holes 114 for allowing the telescopic assembly 14 to be movably disposed therein. The telescopic assembly 14 is columnar, and the opposite ends of the telescopic assembly 14 are respectively located on opposite sides of the guide portion 113 .

[0080] In this embodiment, the plurality of guide holes 114 formed in the guide portion 113 are parallel to each other. In other embodiments, the extension direction of each guide hole 114 can be adjusted according to the extension direction required by each telescopic assembly 14 .

[0081] It can be understood that by opening a plurality of guide holes 114 in the guide portion 113 and placing the columnar telescopic components 14 in the guide holes 114 , the extension direction of the telescopic components 14 after being pushed by the cam component 13 can be limited, thereby improving the accuracy of the telescopic mechanism 1 .

[0082] Further integration Figure 5 As shown, in one embodiment, the telescopic assembly 14 includes a column 141, an elastic member 144 and a blocking portion 143. The column 141 is movably disposed in the guide hole 114, and the guide hole 114 can limit the column 141 from moving in the downward pressing direction D1 or in the opposite direction of the downward pressing direction D1. The blocking portion 143 is fixedly connected to the column 141, and the elastic member 144 is supported between the guide portion 113 and the blocking portion 143. The elastic member 144 is used to push the extended telescopic assembly 14 to retract in the opposite direction of the downward pressing direction D1.

[0083] In one embodiment, the elastic member 144 may be an element with elastic deformation capability, such as a spring or an elastomer made of organic materials. In this embodiment, the elastic member 144 is shown as a spring.

[0084] In one embodiment, the telescopic assembly 14 includes a column 141, a roller 142 and a pressure block 145. The roller 142 and the pressure block 145 are respectively disposed at two opposite ends of the column 141, the abutting end 132 contacts the roller 142 to push the column 141 to extend, and the pressure block 145 is used to perform a pressing action when the telescopic assembly 14 is extended.

[0085] In one embodiment, the pressing block 145 is disposed at the end of the column 141 away from the cam assembly 13 . The pressing block 145 may include an elastic material or a flexible material to prevent the telescopic assembly 14 from damaging the surface of the part 2 .

[0086] In one embodiment, the driving assembly 12 drives the abutting end 132 to move relative to the column 141 , and the contact surface 133 contacts the roller 142 and guides the roller 142 to be offset from the abutting end 132 via the contact surface 133 .

[0087] In this embodiment, the telescopic assembly 14 includes a column 141, a roller 142, a blocking portion 143, an elastic member 144 and a pressing block 145. The main body includes a first end 1411 and a second end 1412, wherein the first end 1411 is disposed on a side of the guide portion 113 close to the loading portion 111, and the second end 1412 is disposed on a side of the guide portion 113 away from the loading portion 111.

[0088] In this embodiment, the roller 142 is disposed at the top of the second end 1412 and is rotatably connected to the column 141 through a detachable shaft. The blocking portion 143 is disposed at the second end 1412 and is fixedly connected to the column 141. The blocking portion 143 may be in the shape of a latch. The blocking portion 143 protrudes to both sides of the column 141 on the plane along the radial direction of the column 141. The elastic member 144 is disposed at the second end 1412 and is sleeved on the outer side of the column 141.

[0089] It can be understood that, since the abutting end 132 and the telescopic assembly 14 may contact and move relative to each other, the provision of the roller 142 can reduce the friction between the telescopic assembly 14 and the abutting end 132 , thereby reducing the wear of the telescopic mechanism 1 .

[0090] It can be understood that the two ends of the elastic member 144 are respectively abutted against the guide portion 113 and the blocking portion 143. When the cam assembly 13 pushes the telescopic assembly 14 to extend, the elastic member 144 is in a compressed state. When the cam assembly 13 rotates to the abutting end 132 and separates from the telescopic assembly 14, the telescopic assembly 14 can retract under the elastic force of the elastic member 14, so that the telescopic assembly 14 returns to its original state, so that the telescopic mechanism 1 can work repeatedly, thereby improving the working efficiency of the telescopic mechanism 1.

[0091] In the above, the specific embodiments of the present application are described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific embodiments of the present application without departing from the scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. A telescopic mechanism, characterized in that: include: A drive assembly for outputting a rotational torque; A cam assembly, which is drivingly connected to the driving assembly, and the cam assembly includes a protruding abutting end; A plurality of telescopic components, wherein the cam component is driven by the driving component so that the abutting end sequentially pushes the plurality of telescopic components to extend.

2. The telescopic mechanism according to claim 1, characterized in that: The driving assembly drives the cam assembly to rotate, and the abutting end contacts with a plurality of the telescopic assemblies in a time-sharing manner, and one abutting end contacts with at most one telescopic assembly at the same time.

3. The telescopic mechanism according to claim 1, characterized in that: The plurality of telescopic components are arranged at intervals, and the plurality of telescopic components are all located on the movement path of the abutting end when the cam component rotates.

4. The telescopic mechanism according to claim 1, characterized in that: The telescopic mechanism also includes a bracket, and the plurality of telescopic components are respectively connected to the bracket, and the bracket is used to guide the extension direction of the telescopic components.

5. The telescopic mechanism according to claim 4, characterized in that: The bracket includes a guide part and a loading part, the guide part and the loading part are spaced apart, the guide part is provided with a plurality of guide holes, and the guide holes are used to allow the telescopic assembly to be movably arranged therein, and the driving assembly is connected to the loading part.

6. The telescopic mechanism according to claim 5, characterized in that: The telescopic component is columnar, and its two opposite ends are respectively located on opposite sides of the guide portion. The driving component is arranged on the side of the loading portion facing the guide portion. The cam component is connected to the driving component and is arranged on the side of the driving component facing the guide portion. The supporting end is located on the side where the guide portion is located.

7. The telescopic mechanism according to claim 5, characterized in that: The telescopic component includes a column, an elastic member and a blocking portion. The column is movably disposed in the guide hole. The blocking portion is fixedly connected to the column. The elastic member is supported between the guide portion and the blocking portion. The elastic member is used to push the extended telescopic component to retract.

8. The telescopic mechanism according to claim 1, characterized in that: The telescopic assembly includes a column, a roller and a pressure block, wherein the roller and the pressure block are respectively arranged at two opposite ends of the column, the abutting end contacts the roller to push the column to extend, and the pressure block is used to perform a pressing action when the telescopic assembly is extended.

9. The telescopic mechanism according to claim 8, characterized in that: The roller is rotatably connected to the column, the abutting end has a contact surface, the driving component drives the abutting end to move relative to the column, the contact surface contacts the roller and guides the roller to be offset from the abutting end via the contact surface.

10. The telescopic mechanism according to claim 9, characterized in that: The abutting end protrudes in the direction in which the telescopic component extends, and the contact surface is arc-shaped.

Images