Supporting rod

Abstract

The embodiment of the invention provides a supporting rod, and the supporting rod comprises a sleeve which is provided with a sliding groove and a clamping groove, the clamping groove is communicated with one end of the sliding groove, and the inner wall of the clamping groove is provided with a first protrusion and a second protrusion which are opposite to each other; the rod piece structure is in sliding connection with the sleeve; the elastic piece is connected with the sleeve and the rod piece structure; the movable pin block is rotationally connected with the rod piece structure and is provided with a first groove and a second groove which are opposite to each other; in the process that the rod piece structure shrinks relative to the sleeve, the movable pin block can slide into the clamping groove along the sliding groove, and the first protrusion abuts against the inner wall of the first groove so that the movable pin block can rotate from the initial position to the first position relative to the rod piece structure. In the process that the rod piece structure extends out relative to the sleeve, the second protrusion abuts against the inner wall of the second groove, so that the movable pin block rotates from the first position to the second position relative to the rod piece structure and is clamped in the clamping groove, the rod piece structure can overcome the elastic force of the elastic piece and keep contracting relative to the sleeve, and operation is easy.

Description

Technical Field

[0001] The invention relates to the technical field of telescopic rods, in particular to a support rod. Background Art

[0002] The support rod is a common component used in door panels such as house doors and cabinet doors. One end of the support rod is connected to the door frame, and the other end of the support rod is connected to the door panel. The support rod can realize the opening and closing of the door panel through telescopic action.

[0003] In the related art, the support rod includes a sleeve, a rod and an elastic member. The sleeve and the rod slide to achieve extension and retraction. The elastic member connects the sleeve and the rod to provide elastic force for the rod to extend relative to the sleeve. The existing support rod cannot position the rod after the rod is retracted relative to the sleeve, and has poor applicability. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a brace that can be positioned in a retracted state and has strong applicability.

[0005] The cam is configured to move the rods toward the support frame, and the cam is configured to move the rods toward the support frame, wherein the cam is configured to move the rods toward the support frame, wherein the cam is configured to move the rods toward the support frame.

[0006] The support rod provided by the embodiment of the present invention has at least the following beneficial effects:

[0007] By arranging a movable pin block that can rotate relatively on the rod structure, and providing a connecting slide groove and a clamping groove on the sleeve, the movable pin block can slide along the slide groove into the clamping groove during the process of the rod structure contracting relative to the sleeve, and at the same time, relative first protrusions and second protrusions are provided on the inner wall of the clamping groove, and first grooves and second grooves opposite to each other are provided on the movable pin block. During the process of the rod structure continuing to extend and retract relative to the sleeve, the first protrusion abuts against the inner wall of the first groove of the movable pin block, so that the movable pin block rotates from the initial position to the first position relative to the rod structure, and during the process of the rod structure extending relative to the sleeve, the second protrusion abuts against the inner wall of the second groove of the movable pin block, so that the movable pin block rotates from the first position to the second position and is clamped in the clamping groove, thereby completing the positioning of the rod structure in the contracted state. The support rod has strong applicability. During use, the user can press and then release the rod structure so that the rod structure can overcome the elastic force of the elastic member and maintain contraction relative to the sleeve, and the operation is relatively simple.

[0008] In one embodiment of this implementation, the movable pin block includes a first connecting surface and a second connecting surface opposite to each other, the two sides of the first connecting surface are respectively connected to the inner walls of the first groove and the second groove, and the two sides of the second connecting surface are respectively connected to the inner walls of the first groove and the second groove;

[0009] When the movable pin block is in the second position, during the process of the rod structure contracting relative to the sleeve, the first connecting surface abuts against the first protrusion to allow the movable pin block to rotate to the third position relative to the rod structure; when the movable pin block is in the third position, during the process of the rod structure extending relative to the sleeve, the second connecting surface abuts against the second protrusion to allow the movable pin block to rotate to the fourth position relative to the rod structure, and the movable pin block can slide along the slide groove.

[0010] In an example of this implementation manner, the first groove and the second groove are symmetrically arranged along a plane, and when the rod structure is in the fourth position, the inner wall of the second groove is opposite to the first protrusion.

[0011] In an example of this implementation manner, both the first groove and the second groove are V-shaped grooves.

[0012] In one embodiment of this implementation manner, the direction in which the movable pin block rotates from the initial position to the first position, the direction in which the movable pin block rotates from the first position to the second position, the direction in which the movable pin block rotates from the second position to the third position, and the direction in which the movable pin block rotates from the third position to the fourth position are the same.

[0013] In an example of this implementation manner, the first connecting surface and the second connecting surface are arranged in parallel.

[0014] In an example of this implementation manner, when the movable pin block is in the second position, the first connecting surface is opposite to the first protrusion.

[0015] In an embodiment of this implementation mode, the sleeve is provided with a guide groove, and part of the rod structure slides in cooperation with the guide groove; a limiting protrusion is formed on the inner wall of the guide groove, and the rod structure is provided with a limiting groove, or a limiting groove is formed on the inner wall of the guide groove, and the rod structure forms a limiting protrusion; one end of the elastic member is sleeved on the limiting protrusion, and the other end of the elastic member is accommodated in the limiting groove.

[0016] In an example of this implementation manner, the support rod includes a buffer sleeve, and the buffer sleeve is sleeved on the outer periphery of the elastic member.

[0017] In an embodiment of this implementation, a plurality of retaining grooves are provided on the outer periphery of the rod structure, and the plurality of retaining grooves are arranged in sequence and at intervals along the axial direction of the rod structure. The support rod also includes a retaining ring, which is clamped in one of the retaining grooves and abuts against the sleeve to limit the rod structure from detaching from the sleeve.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 is a schematic diagram of a three-dimensional structure of a support rod in an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of the local structure of the support rod;

[0022] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the rod structure of the support rod and related components;

[0023] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the sleeve of the support rod and related components in an exploded state;

[0024] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of the support rod after the hollow tube is removed;

[0025] Figure 6It is a schematic diagram of the local structure of the support rod when the movable pin block is in the initial position;

[0026] Figure 7 is a schematic diagram of the local structure of the support rod when the movable pin block is in the first position;

[0027] Figure 8 is a schematic diagram of a partial structure of the support rod when the movable pin block is between the first position and the second position;

[0028] Fig. 9 is a schematic diagram of the local structure of the support rod when the movable pin block is in the second position;

[0029] Fig.10 is a schematic diagram of the local structure of the support rod when the movable pin block is between the second position and the third position;

[0030] Fig.11 is a schematic diagram of the local structure of the support rod when the movable pin block is in the third position;

[0031] Fig.12 is a schematic diagram of the local structure of the support rod when the movable pin block is between the third position and the fourth position;

[0032] Fig.13 It is a schematic diagram of the local structure of the support rod when the movable pin block is in the fourth position.

[0033] Reference numerals:

[0034] The support rod 100; the sleeve 10; the slide groove 101; the clamping groove 102; the first protrusion 103; the second protrusion 104; the inclined surface 105; the assembly groove 107; the guide groove 108; the limiting protrusion 109; the hollow tube 11; the first end cover 12; the second end cover 13; the rod structure 20; the connecting rod 21; the slider 22; the clamping ring 23; the limiting groove 201; the retaining groove 202; the elastic member 30; the movable pin block 40; the first groove 401; the second groove 402; the first connecting surface 403; the second connecting surface 404; the first fixing seat 51; the first locking member 511; the second fixing seat 52; the second locking member 521; the retaining ring 53; the buffer sleeve 60. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0039] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the three-dimensional structure of a support rod 100 according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of a partial structure of a support rod 100. An embodiment of the present invention provides a support rod 100, which includes a sleeve 10, a rod structure 20, an elastic member 30 and a movable pin block 40. The sleeve 10 is provided with a slide groove 101 and a clamping groove 102, the clamping groove 102 is connected to one end of the slide groove 101, and the inner wall of the clamping groove 102 is provided with a first protrusion 103 and a second protrusion 104 opposite to each other. The rod structure 20 is slidably connected to the sleeve 10, and the elastic member 30 connects the sleeve 10 and the rod structure 20. The movable pin block 40 is rotatably connected to the rod structure 20, and is provided with a first groove 401 and a second groove 402 opposite to each other.

[0041] During the process of the rod structure 20 contracting relative to the sleeve 10, the movable pin block 40 can slide along the slide groove 101 into the clamping groove 102, and the first protrusion 103 abuts against the inner wall of the first groove 401, so that the movable pin block 40 rotates from the initial position to the first position relative to the rod structure 20; during the process of the rod structure 20 extending relative to the sleeve 10, the second protrusion 104 abuts against the inner wall of the second groove 402, so that the movable pin block 40 rotates from the first position to the second position relative to the rod structure 20, and is clamped in the clamping groove 102.

[0042] Specifically, the extension direction of the slide groove 101 is parallel to the sliding direction of the rod structure 20 relative to the sleeve 10, that is, when the rod structure 20 slides relative to the sleeve 10 and expands and contracts, the movable pin block 40 also slides along the slide groove 101. The elastic member 30 is in a compressed state, and the direction in which the elastic member 30 applies elastic force to the rod structure 20 corresponds to the direction in which the rod structure 20 extends relative to the sleeve 10, that is, when the rod structure 20 extends relative to the sleeve 10, the elastic member 30 recovers its deformation, and when the rod structure 20 contracts relative to the sleeve 10, the elastic member 30 is compressed. The clamping groove 102 is connected to one end of the slide groove 101 in the direction in which the rod structure 20 contracts relative to the sleeve 10, so that when the rod structure 20 contracts relative to the sleeve 10, the movable pin block 40 can enter the clamping groove 102 along the slide groove 101 to achieve clamping.

[0043] In this embodiment, the elastic member 30 is configured as a spring, one end of the spring is connected to the sleeve 10, and the other end of the spring is connected to the rod structure 20, and the spring is in a compressed state. In other embodiments, the elastic member 30 can also be configured as other elastic devices such as a leaf spring and a clip spring.

[0044] In this embodiment, the rod structure 20 is provided with an axial hole extending in the radial direction, one end of the movable pin block 40 extends into the axial hole and rotatably cooperates with the axial hole, and the other end of the movable pin block 40 extends into the slide groove 101 or the clamping groove 102. In other embodiments, a radially extending protrusion may also be provided on the rod structure 20, the axial hole is provided in the movable pin block 40, and the protrusion and the rotating shaft are rotatably cooperated.

[0045] In this embodiment, in order to facilitate the assembly of the movable pin block 40, an assembly groove 107 is opened on the sleeve 10, and the assembly groove 107 is connected to the end of the slide groove 101 away from the card groove 102. The size and shape of the assembly groove 107 correspond to the movable pin block 40, so that the movable pin block 40 can be installed on the rod structure 20 through the assembly groove 107, which simplifies the assembly process.

[0046] In this embodiment, please refer to Figure 6 and Figure 7 , Figure 6 is a schematic diagram of a partial structure of the support rod 100 when the movable pin block 40 is in the initial position; Figure 7It is a schematic diagram of the partial structure of the support rod 100 when the movable pin block 40 is in the first position. When the rod structure 20 is in the process of contraction relative to the sleeve 10, that is, when the user presses the rod structure 20 and the movable pin block 40 slides along the slide groove 101, the movable pin block 40 will not rotate relative to the rod structure 20 or will only rotate at a small angle relative to the rod structure 20. At this time, the position of the movable pin block 40 relative to the rod structure 20 is the initial position. When the movable pin block 40 just enters the slot 102, the first groove 401 is opposite to the first protrusion 103. Therefore, when the rod structure 20 continues to contract relative to the sleeve 10, that is, the user continues to press the rod structure 20, the inner wall of the first groove 401 will collide with the first protrusion 103, causing the movable pin block 40 to rotate counterclockwise to the first position relative to the rod structure 20. At this time, the second groove 402 of the movable pin block 40 is opposite to the second protrusion 104. Please refer to Figure 8 and Fig. 9 , Figure 8 is a schematic diagram of a partial structure of the support rod 100 when the movable pin block 40 is between the first position and the second position; Fig. 9 1 is a partial structural diagram of the support rod 100 when the movable pin block 40 is in the second position; when the user releases the rod structure 20 and the elastic force of the elastic member 30 is applied, the rod structure 20 extends relative to the sleeve 10, and the inner wall of the second groove 402 collides with the second protrusion 104, so that the movable pin block 40 continues to rotate counterclockwise to the second position relative to the rod structure 20. When the movable pin block 40 is in the second position, the movable pin block 40 is engaged in the engagement groove 102.

[0047] By providing a relatively rotatable movable pin block 40 on the rod structure 20, and providing a communicating slide groove 101 and a clamping groove 102 on the sleeve 10, when the rod structure 20 is contracted relative to the sleeve 10, the movable pin block 40 can slide along the slide groove 101 into the clamping groove 102, and at the same time, a first protrusion 103 and a second protrusion 104 are provided on the inner wall of the clamping groove 102, and a first groove 401 and a second groove 402 opposite to each other are provided on the movable pin block 40. When the rod structure 20 continues to extend and retract relative to the sleeve 10, the first protrusion 103 abuts against the inner wall of the first groove 401 of the movable pin block 40. So that the movable pin block 40 can rotate from the initial position to the first position relative to the rod structure 20, and in the process of the rod structure 20 extending relative to the sleeve 10, the second protrusion 104 abuts against the inner wall of the second groove 402 of the movable pin block 40, so that the movable pin block 40 can rotate from the first position to the second position and be engaged in the slot 102, thereby completing the positioning of the rod structure 20 in the retracted state. The support rod 100 has strong applicability. During use, the user can press and then release the rod structure 20 so that the rod structure 20 can overcome the elastic force of the elastic member 30 and remain retracted relative to the sleeve 10, and the operation is relatively simple.

[0048] In one embodiment of this implementation, please refer to Figures 3 to 5 , Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the rod structure 20 and related components of the support rod 100; Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the sleeve 10 of the support rod 100 and related components in an exploded state; Figure 5 yes Figure 1 Schematic diagram of the three-dimensional structure of the support rod 100 after the hollow tube 11 is removed. The sleeve 10 is provided with a guide groove 108, and part of the rod structure 20 is slidably matched with the guide groove 108. The inner wall of the guide groove 108 forms a limiting protrusion 109, and the rod structure 20 is provided with a limiting groove 201. One end of the elastic member 30 is sleeved on the limiting protrusion 109, and the other end of the elastic member 30 is accommodated in the limiting groove 201. It can be understood that in order to facilitate the assembly of the elastic member 30 and the smooth deformation of the elastic member 30, a gap is usually reserved between the elastic member 30 and the groove wall of the guide groove 108. The existence of this gap makes it easy for the elastic member 30 to move radially when it is compressed, affecting the use function. By forming a limiting protrusion 109 on the inner wall of the guide groove 108 and opening a limiting groove 201 on the rod structure 20, the two ends of the elastic member 30 are respectively sleeved on the limiting protrusion 109 and accommodated in the limiting groove 201, the risk of radial displacement of the elastic member 30 can be effectively reduced.

[0049] In other embodiments, the limiting groove 201 may also be provided on the inner wall of the guide groove 108 , and the limiting protrusion 109 may be formed on the rod structure 20 , which may also reduce the risk of radial displacement of the elastic member 30 .

[0050] In one embodiment of this implementation, please refer to Figures 3 to 5 The rod structure 20 includes a connecting rod 21, a slider 22 and a clamping ring 23. The slider 22 is sleeved on the connecting rod 21. The slider 22 is slidably matched with the guide groove 108. The elastic member 30 is sleeved on the outer periphery of the connecting rod 21. The limiting groove 201 is opened on one side of the slider 22 and is opposite to the limiting protrusion 109. The clamping ring 23 is clamped and fixed to the connecting rod 21 and abuts against the side of the slider 22 facing away from the elastic member 30 to limit the slider 22 from separating from the connecting rod 21. Such a configuration facilitates the sliding connection between the rod structure 20 and the sleeve 10 and facilitates assembly.

[0051] In this embodiment, the movable pin block 40 is relatively rotatably mounted on the connecting rod 21 and is located on the side of the slider 22 facing away from the elastic member 30. In other embodiments, the movable pin block 40 may also be located at other positions.

[0052] In one embodiment of this implementation, please refer to Figures 3 to 5The sleeve 10 includes a hollow tube 11, a first end cover 12 and a second end cover 13. The first end cover 12 and the second end cover 13 are respectively installed at both ends of the hollow tube 11 to enclose and form a guide groove 108. A limiting protrusion 109 is provided on the surface of the first end cover 12. The slide groove 101, the clamping groove 102 and the assembly groove 107 are all opened in the hollow tube 11 and communicated with the guide groove 108.

[0053] In one embodiment of this implementation, please refer to Figures 3 to 5 The support rod 100 includes a first fixing seat 51 and a second fixing seat 52, wherein the first fixing seat 51 is mounted on the first end cover 12 and the hollow tube 11 through a first locking member 511, and the second fixing seat 52 is mounted on an end of the connecting rod 21 away from the first fixing seat 51 through a second locking member 521. The first fixing seat 51 is used to be connected and fixed to the door frame, and the second fixing seat 52 is used to be connected and fixed to the door panel.

[0054] In one embodiment of this implementation, please refer to Figures 3 to 5 The support rod 100 includes a buffer sleeve 60, which is sleeved on the outer periphery of the elastic member 30. Specifically, the material of the buffer sleeve 60 can be selected from various materials that can absorb vibration, such as polymers such as rubber and silicone. It can be understood that since a gap is reserved between the elastic member 30 and the groove wall of the guide groove 108, during use, the elastic member 30 and the sleeve 10 are prone to collision and noise. By providing the buffer sleeve 60, the buffer sleeve 60 is sleeved on the outer periphery of the elastic member 30, and the buffer sleeve 60 can separate the elastic member 30 and the sleeve 10, thereby reducing noise. At the same time, the buffer sleeve 60 can guide the deformation of the elastic member 30.

[0055] In this embodiment, in order to facilitate the installation of the buffer sleeve 60, the buffer sleeve 60 is configured as an annular sleeve with a notch, which can be buckled to the outer periphery of the elastic member 30 to cover at least part of the elastic member 30. In this embodiment, the buffer sleeve 60 is located at one end of the elastic member 30 away from the limiting groove 201.

[0056] In one embodiment of this implementation, please refer to Figures 3 to 5 The outer circumference of the rod structure 20 is provided with a plurality of retaining grooves 202, which are arranged in sequence along the axial direction of the rod structure 20. The support rod 100 further includes a retaining ring 53, which is clamped in one of the retaining grooves 202 and abuts against the sleeve 10 to limit the rod structure 20 from leaving the sleeve 10. Specifically, the retaining ring 53 abuts against the second end cover 13 to limit the rod structure 20 from leaving the guide groove 108. By providing a plurality of retaining grooves 202 on the rod structure 20, the retaining ring 53 can be selectively installed in the corresponding retaining groove 202 according to actual application requirements to adjust the maximum extension length and the minimum contraction length of the support rod 100.

[0057] In one embodiment of this implementation, please refer to Figure 2 The movable pin block 40 includes a first connecting surface 403 and a second connecting surface 404 facing each other, and both sides of the first connecting surface 403 are respectively connected to the inner walls of the first groove 401 and the second groove 402, and both sides of the second connecting surface 404 are respectively connected to the inner walls of the first groove 401 and the second groove 402.

[0058] Please also read Fig. 9 and Fig.10 , Fig.10 1 is a partial structural diagram of the support rod 100 when the movable pin block 40 is between the second position and the third position. When the movable pin block 40 is in the second position, during the process of the rod structure 20 contracting relative to the sleeve 10, the first connecting surface 403 abuts against the first protrusion 103, so that the movable pin block 40 rotates relative to the rod structure 20 to the third position. Figures 11 to 13 , Fig.11 is a schematic diagram of a partial structure of the support rod 100 when the movable pin block 40 is in the third position; Fig.12 is a partial structural schematic diagram of the support rod 100 when the movable pin block 40 is between the third position and the fourth position; Fig.13 1 is a partial structural diagram of the support rod 100 when the movable pin block 40 is in the fourth position. When the movable pin block 40 is in the third position, during the process of the rod structure 20 extending relative to the sleeve 10, the second connecting surface 404 abuts against the second protrusion 104, so that the movable pin block 40 rotates relative to the rod structure 20 to the fourth position, and the movable pin block 40 can slide along the slide groove 101.

[0059] Through the above-mentioned structural design, when the user continues to press the rod structure 20 so that the rod structure 20 contracts relative to the sleeve 10, the movable pin block 40 can be rotated until it is no longer restricted by the slot 102, thereby releasing the positioning of the rod structure 20 in the compressed state. The operation is relatively simple, which is conducive to improving the user experience.

[0060] In this embodiment, please refer to Fig. 9 Arc surfaces are provided between the inner wall of the first groove 401 and the first connecting surface 403 and the second connecting surface 404, arc surfaces are provided between the inner wall of the second groove 402 and the first connecting surface 403 and the second connecting surface 404, and the top of the first protrusion 103 and the top of the second protrusion 104 are also constructed as arc surfaces. This arrangement allows the movable pin block 40 to rotate relative to the rod structure 20 under the action of the first protrusion 103 and the second protrusion 104.

[0061] In this embodiment, please refer to Fig. 9The inner wall of the slot 102 includes an inclined surface 105, which is inclined downward relative to the inner wall of the slide slot 101. When the movable pin block 40 is in the second position, the inner wall of the second groove 402, the arc surface between the inner wall of the second groove 402 and the second connecting surface 404 abut against the top wall of the slot 102, and the arc surface between the inner wall of the first groove 401 and the second connecting surface 404 abut against the inclined surface 105, so that the movable pin block 40 is clamped in the slot 102. The existence of the inclined surface 105, on the one hand, provides a larger space for the movable pin block 40 to facilitate the rotation of the movable pin block 40 in the slot 102, and on the other hand, can abut against the movable pin block 40 when the movable pin block 40 is in the second position to limit the movable pin block 40 from entering the slide slot 101.

[0062] In one embodiment of this implementation, please refer to Figure 2 and Fig.13 , the first groove 401 and the second groove 402 are symmetrically arranged along a plane, and when the rod structure 20 is in the fourth position, the inner wall of the second groove 402 is opposite to the first protrusion 103. It can be understood that after the movable pin block 40 returns to the slide groove 101 at the fourth position, the next press will cause the inner wall of the second groove 402 to collide with the first protrusion 103, so that the movable pin block 40 rotates relative to the rod structure 20. By arranging the first groove 401 and the second groove 402 to be symmetrical along a plane, it can be achieved that after the movable pin block 40 exits the card slot 102, the user can press again to engage in the card slot 102, and the user can also leave the card slot 102 by continuing to press.

[0063] In one embodiment of this implementation, please refer to Figure 2 and Figure 6 , the first groove 401 and the second groove 402 are both V-shaped grooves. Specifically, the first groove 401 and the second groove 402 are both symmetrical V-shaped grooves. The inner wall of the first groove 401 forms an angle of 120°, and the inner wall of the second groove 402 forms an angle of 120°, so as to better abut with the first protrusion 103 and the second protrusion 104 to form a torque.

[0064] In one embodiment of this implementation, please refer to Figures 9 to 13 , the direction in which the movable pin block 40 rotates from the initial position to the first position, the direction in which the movable pin block 40 rotates from the first position to the second position, the direction in which the movable pin block 40 rotates from the second position to the third position, and the direction in which the movable pin block 40 rotates from the initial position to the fourth position are the same. In this embodiment, the direction in which the movable pin block 40 rotates from the initial position to the fourth position is always counterclockwise.

[0065] In one embodiment of this implementation, please refer to Figure 2 and Figure 6The first connecting surface 403 and the second connecting surface 404 are arranged in parallel. In this way, after the movable pin block 40 exits the card slot 102, the user can press it again to be engaged in the card slot 102, and the user can also leave the card slot 102 by continuing to press it.

[0066] In one embodiment of this implementation, please refer to Figure 2 and Fig. 9 When the movable pin block 40 is in the second position, the first connecting surface 403 is opposite to the first protrusion 103. This arrangement allows the first connecting surface 403 to abut against the first protrusion 103 and generate a rotational torque when the rod structure 20 contracts relative to the sleeve 10.

[0067] Specifically, when the movable pin block 40 is in the second position, the first connecting surface 403 is inclined relative to the extending direction of the sliding groove 101 so as to smoothly generate the rotational torque.

[0068] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A support rod (100), characterized in that: include: The sleeve (10) is provided with a slide groove (101) and a clamping groove (102), wherein the clamping groove (102) is connected to one end of the slide groove (101), and the inner wall of the clamping groove (102) is provided with a first protrusion (103) and a second protrusion (104) opposite to each other; A rod structure (20) slidably connected to the sleeve (10); An elastic member (30) connecting the sleeve (10) and the rod structure (20); as well as A movable pin block (40) is rotatably connected to the rod structure (20) and is provided with a first groove (401) and a second groove (402) opposite to each other; During the process of the rod structure (20) contracting relative to the sleeve (10), the movable pin block (40) can slide along the slide groove (101) into the clamping groove (102), and the first protrusion (103) abuts against the inner wall of the first groove (401), so that the movable pin block (40) rotates from the initial position to the first position relative to the rod structure (20); during the process of the rod structure (20) extending relative to the sleeve (10), the second protrusion (104) abuts against the inner wall of the second groove (402), so that the movable pin block (40) rotates from the first position to the second position relative to the rod structure (20) and is clamped in the clamping groove (102).

2. The support rod (100) according to claim 1, characterized in that The movable pin block (40) comprises a first connecting surface (403) and a second connecting surface (404) which are opposite to each other, the two sides of the first connecting surface (403) are respectively connected to the inner walls of the first groove (401) and the second groove (402), and the two sides of the second connecting surface (404) are respectively connected to the inner walls of the first groove (401) and the second groove (402); When the movable pin block (40) is in the second position, during the process of the rod structure (20) contracting relative to the sleeve (10), the first connecting surface (403) abuts against the first protrusion (103), so that the movable pin block (40) rotates to the third position relative to the rod structure (20); when the movable pin block (40) is in the third position, during the process of the rod structure (20) extending relative to the sleeve (10), the second connecting surface (404) abuts against the second protrusion (104), so that the movable pin block (40) rotates to the fourth position relative to the rod structure (20), and the movable pin block (40) can slide along the slide groove (101).

3. The support rod (100) according to claim 2, characterized in that: The first groove (401) and the second groove (402) are symmetrically arranged along a plane, and when the rod structure (20) is in the fourth position, the inner wall of the second groove (402) is opposite to the first protrusion (103).

4. The support rod (100) according to claim 3, characterized in that: The first groove (401) and the second groove (402) are both V-shaped grooves.

5. The support rod (100) according to claim 2, characterized in that: The movable pin block (40) has the same direction of rotation from the initial position to the first position, direction of rotation from the first position to the second position, direction of rotation from the second position to the third position, and direction of rotation from the third position to the fourth position.

6. The brace (100) according to claim 2, characterized in that: The first connecting surface (403) and the second connecting surface (404) are arranged in parallel.

7. The brace (100) according to claim 2, characterized in that: When the movable pin block (40) is in the second position, the first connecting surface (403) is opposite to the first protrusion (103).

8. The brace (100) according to claim 1, characterized in that The sleeve (10) is provided with a guide groove (108), and part of the rod structure (20) is slidably matched with the guide groove (108); the inner wall of the guide groove (108) forms a limiting protrusion (109), and the rod structure (20) is provided with a limiting groove (201), or the inner wall of the guide groove (108) is provided with a limiting groove (201), and the rod structure (20) forms a limiting protrusion (109); one end of the elastic member (30) is sleeved on the limiting protrusion (109), and the other end of the elastic member (30) is accommodated in the limiting groove (201).

9. The brace (100) according to claim 1, characterized in that: The support rod (100) comprises a buffer sleeve (60), and the buffer sleeve (60) is sleeved on the outer circumference of the elastic member (30).

10. The brace (100) according to claim 1, characterized in that The outer circumference of the rod structure (20) is provided with a plurality of retaining grooves (202), and the plurality of retaining grooves (202) are arranged in sequence and at intervals along the axial direction of the rod structure (20). The support rod (100) further comprises a retaining ring (53), and the retaining ring (53) is clamped in one of the retaining grooves (202) and abuts against the sleeve (10) to limit the rod structure (20) from being separated from the sleeve (10).

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