Supporting rod

Abstract

The utility model relates to the technical field of supporting rods, in particular to a supporting rod which comprises a first support, a second support and a third support. The bottom end of the first supporting arm is connected to one side of the first supporting seat and can rotate relative to the first supporting seat; the second supporting arm and the third supporting arm are arranged on the two sides of the top end of the first supporting arm in parallel and can rotate relative to the first supporting arm. The first supporting arm, the second supporting arm, the third supporting arm, the self-locking mechanism and the steel wire rope are used in cooperation, when the supporting rod is opened, the first supporting arm can push the sliding block to move, the sliding block drives the two clamping blocks to move rightwards in the limiting holes through the limiting screws and the connecting plate, meanwhile, the sliding block compresses the spring, and when the spring is driven to the notch, the spring is locked. During unlocking, the steel wire rope can be pulled through the handle, so that the steel wire rope drives the sliding block to be separated from the notch through the clamping block, and unlocking is achieved.

Description

Technical Field

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

[0002] A support rod is a connecting structure used to support an object to maintain a certain state. When the support rod is used on a door panel that opens upward, it can realize the upward opening and closing of the door panel and maintain the state of the door panel after it is opened upward.

[0003] The existing support rod includes a support, a support arm and a self-locking structure, through which the door panel can be self-locked. However, in actual production, the existing support rod has more self-locking structure parts, which makes assembly complicated and increases costs. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a support rod to solve the technical problems of the existing support rod having more self-locking structural parts, complicated assembly and increased cost.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A support rod comprising:

[0007] First support;

[0008] A first support arm, wherein a bottom end of the first support arm is connected to one side of the first support and can rotate relative to the first support;

[0009] A second support arm and a third support arm, wherein the second support arm and the third support arm are arranged in parallel on both sides of the top end of the first support arm and can rotate relative to the first support arm;

[0010] A second support, wherein the bottom end of the second support is connected to the top end of the second support arm and the top end of the third support arm and can rotate relative to the second support arm and the third support arm;

[0011] A self-locking mechanism, which is installed between the second arm and the third arm and close to one end of the first arm and can lock the first arm;

[0012] A steel wire rope is arranged on the front side of the second support arm, one end of the steel wire rope is connected to the self-locking mechanism and the other end of the steel wire rope is fixedly connected to a handle for unlocking.

[0013] Furthermore, a gasket is provided between the first arm and the first support, a second rivet is provided inside the first arm, one end of the second rivet passes through the first arm and the gasket and extends to the rear side of the first support and is threadedly matched with a first nut.

[0014] Furthermore, a first washer is provided between the second arm, the third arm and the first arm, and the third arm, the second arm and the first arm are riveted together by a first rivet.

[0015] Furthermore, two triangular plates are fixedly connected to the bottom of the second support, the two triangular plates are located between the second arm and the third arm, and a third gasket is provided between the triangular plates and the second arm and the third arm, and the two triangular plates, the second arm and the third arm are riveted together by a third rivet.

[0016] Furthermore, a limiting hole and a mounting hole matching with the self-locking mechanism are provided at the middle part of the third arm and the middle part of the second arm, and the mounting hole is located on the right side of the limiting hole.

[0017] Furthermore, the self-locking mechanism comprises:

[0018] Two clamping blocks, a connecting plate is fixedly connected between the lower ends of the two clamping blocks, the ends of the two clamping blocks that are away from each other are respectively slidably matched in the interior of the limiting holes, and a corner of the front clamping block is provided with a wire hole for inserting a wire rope;

[0019] A slider, wherein a matching groove matching with the connecting plate is provided at the middle of the bottom end of the slider, the slider is installed between the two clamping blocks and the matching groove at the bottom end thereof contacts with the connecting plate, an adjustment hole connected with the matching groove is provided at the top end of the slider, a limit screw is inserted inside the bottom end of the connecting plate, and the top end of the limit screw sequentially penetrates the connecting plate, the matching groove and the adjusting hole and extends to the upper part and is threadedly matched with a second nut;

[0020] A sleeve, the sleeve is arranged on the right side of the slider, and a clearance groove is provided in the middle of both ends of the sleeve, and the clearance groove on the right side is slidably matched with the right end of the slider;

[0021] A fixing block, the fixing block is cross-shaped and is inserted into the inside of the air avoidance groove on the right side, and the front and rear ends of the fixing block are respectively inserted into the inside of the mounting hole;

[0022] A spring is arranged inside the left end of the sleeve, and two ends of the spring are respectively in contact with the slider and the fixed block.

[0023] Furthermore, the length of the mating groove is greater than the length of the connecting plate, the length of the blocking block is less than the length of the limiting hole, the upper surface of the connecting plate and the inner top wall of the mating groove are provided with mutually meshing rolling teeth, the end of the slider away from the sleeve is provided with an inclined surface, the end of the first support arm close to the slider is provided with a notch and a slope surface is provided below the notch to cooperate with the inclined surface to push the slider to move.

[0024] Furthermore, a wire-passing mechanism and a limiting mechanism for guiding and limiting the wire rope are provided on the front side of the second supporting arm, and the wire-passing mechanism is located on the right side of the limiting mechanism.

[0025] Furthermore, the wire passing mechanism includes two rollers arranged opposite to each other, both of the rollers are threadedly engaged with the second support arm through step screws, a second washer is provided between the roller and the second support arm, and the wire rope is located between the two rollers.

[0026] Furthermore, the limiting mechanism includes a limiting member, the limiting member is in a "X" shape and is coaxial with the wire rope, and the limiting member is fixedly mounted on the second arm by screws.

[0027] Beneficial effects of the utility model:

[0028] The utility model adopts a first support arm, a second support arm, a third support arm, a self-locking mechanism and a steel wire rope for use together. When the support rod is opened, the first support arm will push the slider to move, and the slider drives the two clamping blocks to move rightward in the limiting hole through the limiting screw and the connecting plate. At the same time, the slider compresses the spring. When it hits the notch, the slider will be pressed into the notch of the first support arm by the spring to achieve a self-locking effect. When unlocking, the steel wire rope can be pulled by the handle, so that the steel wire rope drives the slider to disengage from the notch through the clamping block to achieve unlocking. In addition, the self-locking mechanism has fewer parts and can greatly reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a schematic diagram of the three-dimensional structure of the brace rod embodiment;

[0031] Figure 2 It is a partial exploded schematic diagram of the brace rod embodiment;

[0032] Figure 3 is an overall exploded schematic diagram of the brace rod embodiment;

[0033] Figure 4 A three-dimensional schematic diagram of the self-locking mechanism of the support rod embodiment;

[0034] Figure 5 This is an exploded schematic diagram of the self-locking mechanism of the support rod embodiment;

[0035] Figure 6 For the embodiment of the present support rod Figure 2 Enlarged schematic diagram at point A in the middle.

[0036] Explanation of the symbols in the figure: 1. first arm; 101. notch; 2. second arm; 201. first rivet; 202. first washer; 3. first support; 301. second rivet; 302. gasket; 303. first nut; 4. second support; 401. third rivet; 5. wire rope; 501. handle; 6. limiter; 601. screw; 602. step screw; 603. roller; 604. second washer; 7. third arm; 701. limit hole; 702. mounting hole; 8. self-locking mechanism; 801. block; 802. slider; 803. gear rolling; 804. matching groove; 805. limit screw; 806. sleeve; 807. air avoidance groove; 808. spring; 809. fixing block; 810. adjustment hole; 811. wire hole; 812. second nut. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0039] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0040] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0041] See also Figure 1As shown, a support rod comprises: a first support 3; a first support arm 1, the bottom end of the first support arm 1 is connected to one side of the first support arm 3 and can rotate relative to the first support arm 3; a second support arm 2 and a third support arm 7, the second support arm 2 and the third support arm 7 are arranged in parallel on both sides of the top of the first support arm 1 and can rotate relative to the first support arm 1; a second support 4, the bottom end of the second support 4 is connected to the top of the second support arm 2 and the top of the third support arm 7 and can rotate relative to the second support arm 2 and the third support arm 7; a self-locking mechanism 8, the self-locking mechanism 8 is installed between the second support arm 2 and the third support arm 7 and is close to one end of the first support arm 1 and can lock the first support Arm 1 is locked; wire rope 5, wire rope 5 is arranged on the front side of the second arm 2, one end of wire rope 5 is connected to the self-locking mechanism 8 and the other end thereof is fixedly connected with a handle 501 for unlocking, the handle 501 can be coated with PVC and is in the shape of an 8, the wire rope 5 is passed through the handle 501 and fixed, which can increase the contact area between the palm and the wire rope 5, making it more comfortable for the palm to pull the wire rope 5; when the support rod is opened, the first arm 1 will drive the self-locking mechanism 8 to cooperate with it to achieve the effect of self-locking. When unlocking is required, the handle 501 can be pulled to make the wire rope 5 pull the self-locking mechanism 8 to disengage from the first arm 1 to achieve unlocking.

[0042] Specifically, Figure 1 and Figure 3 As shown, a gasket 302 is provided between the first arm 1 and the first support 3, a second rivet 301 is provided inside the first arm 1, one end of the second rivet 301 passes through the first arm 1 and the gasket 302 and extends to the rear side of the first support 3 and is threadedly matched with a first nut 303; the first arm 1 can be connected to the first support 3 through the second rivet 301, and at the same time, the gasket 302 separates the first arm 1 from the first support 3 and cooperates with the first nut 303, so that the bottom end of the first arm 1 can be connected to the first support 3 so that it can rotate, so that the first arm 1 can drive the self-locking mechanism 8 to move and realize self-locking.

[0043] Specifically, Figure 1 and Figure 3A first washer 202 is provided between the second arm 2, the third arm 7 and the first arm 1, and the third arm 7, the second arm 2 and the first arm 1 are riveted together by a first rivet 201; two triangular plates are fixedly connected to the bottom of the second support 4, the two triangular plates are located between the second arm 2 and the third arm 7, and a third washer is provided between the triangular plates and the second arm 2 and the third arm 7, and the two triangular plates, the second arm 2 and the third arm 7 are riveted together by a third rivet 401; the first arm 1, the second arm 2 and the third arm 7 are connected together by the first rivet 201 and matched with the first washer 202, and the second arm 2 and the third arm 7 are riveted together by the third rivet 401 and the triangular plate and matched with the third washer, so that the second arm 2 and the third arm 7 can rotate relative to the first arm 1 and the second support 4, so that they can cooperate with the first arm 1 and the self-locking mechanism 8 to achieve self-locking.

[0044] Specifically, Figure 3 As shown, the middle part of the third arm 7 and the middle part of the second arm 2 are provided with a limiting hole 701 and a mounting hole 702 that cooperate with the self-locking mechanism 8, and the mounting hole 702 is located on the right side of the limiting hole 701; the limiting hole 701 can limit and guide the block 801 on the self-locking mechanism 8, so that the self-locking mechanism 8 can achieve self-locking and subsequent unlocking, and the mounting hole 702 can provide support for the fixed block 809 on the self-locking mechanism 8, thereby facilitating the movement of the self-locking mechanism 8.

[0045] like Figure 3 , Figure 4 and Figure 5As shown, the self-locking mechanism 8 includes: two blocks 801, a connecting plate is fixedly connected between the lower ends of the two blocks 801, the ends of the two blocks 801 that are away from each other are slidably matched in the inside of the limiting hole 701, and a corner of the front block 801 is provided with a wire hole 811 for inserting the wire rope 5; a slider 802, a matching groove 804 that matches the connecting plate is provided in the middle of the bottom end of the slider 802, the slider 802 is installed between the two blocks 801 and the matching groove 804 at its bottom end contacts the connecting plate, an adjusting hole 810 that is connected to the matching groove 804 is provided at the top of the slider 802, a limiting screw 805 is inserted inside the bottom end of the connecting plate, and the top of the limiting screw 805 passes through the connecting plate, the matching groove 804 and the adjusting hole 810 in sequence and extends to the upper thread to match the second nut 812; a sleeve 806, the sleeve 806 is arranged on the right side of the slider 802 On the side, both ends of the sleeve 806 are provided with an air avoidance groove 807 in the middle, and the right air avoidance groove 807 is slidably matched with the right end of the slider 802; the fixed block 809 is cross-shaped and the fixed block 809 is inserted into the inside of the air avoidance groove 807 on the right, and the front and rear ends of the fixed block 809 are respectively inserted into the inside of the mounting hole 702; the spring 808, the spring 808 is arranged inside the left end of the sleeve 806, and the two ends of the spring 808 are respectively in contact with the slider 802 and the fixed block 809; when the support rod is opened, the first arm 1 will push the slider 802 to move, and the slider 802 drives the two blocks 801 to move to the right in the limiting hole 701 through the limiting screw 805 and the connecting plate, and at the same time, the slider 802 compresses the spring 808, and when it is hit to the notch 101, the slider 802 will be pressed into the notch 101 of the first arm 1 by the spring 808, so as to achieve a self-locking effect.

[0046] Specifically, Figure 2 , Figure 4 and Figure 5 As shown, the length of the matching groove 804 is greater than the length of the connecting plate, the length of the block 801 is less than the length of the limiting hole 701, the upper surface of the connecting plate and the inner top wall of the matching groove 804 are provided with mutually meshing rolling teeth 803, the end of the slider 802 away from the sleeve 806 is provided with an inclined surface, the end of the first arm 1 close to the slider 802 is provided with a notch 101 and the bottom of the notch 101 is provided with a slope that cooperates with the inclined surface to push the slider 802 to move; the matching groove 804 and the rolling teeth 803 on the connecting plate are meshed with each other and cooperate with the limiting screw 805 and the second nut 812. When wear occurs between the rolling teeth 803, the second nut 812 can be loosened to properly adjust the position of the slider 802 so that the upper and lower meshing rolling teeth 803 can be converted into meshing tooth grooves. When the second nut 812 is locked, the service life of the support rod is greatly improved, and the locking effect will not be poor due to wear.

[0047] like Figure 1 , Figure 2 and Figure 6As shown in the figure, a wire passing mechanism and a limiting mechanism for guiding and limiting the wire rope 5 are provided on the front surface of the second support arm 2. The wire passing mechanism is located on the right side of the limiting mechanism. Two sets of wire passing mechanisms can be provided. One set is provided on the second support arm 2, and the other set can be arranged according to the position of the handle 501. In addition, the other set of wire passing components is used to change the direction of the wire rope 5 so that the handle 501 is in a convenient position for use. Both sets of wire passing mechanisms include two relatively arranged rollers 603. The two left rollers 603 are both threadedly engaged with the second support arm 2 through step screws 602, and the two right rollers 603 are both threadedly engaged with the mounting plate through step screws 602. The position of the mounting plate is fixed as required. A second washer 604 is provided between the roller 603 and the second support arm 2. The wire rope 5 is located between the two rollers 603, which can greatly reduce the friction of the wire rope 5. The limiting mechanism includes a limiting member 6. The limiting member 6 is in a shape of "J" and is arranged coaxially with the wire rope 5. At the same time, the shape of the limiting member 6 is not limited to the "J" shape, and it can also be other shapes that can limit the wire rope 5 to prevent it from running off. The limiting member 6 is fixedly installed on the second support arm 2 through a screw 601. One end of the wire rope 5 is inserted into the wire passing hole 811 and fixed by a wire clip. The other end of the wire rope 5 passes between the limiting member 6, the two left rollers 603 and the two right rollers 603 in sequence. The mutually cooperating rollers 603 can guide the wire rope 5 and reduce the friction received by the wire rope 5. The limiting member 6 can limit the wire rope 5 to prevent the wire rope 5 from running off. When the wire rope 5 is pulled by the handle 501, the wire rope 5 can drive the block 801 at one end thereof to move rightward in the limiting hole 701, so that the slider 802 can move rightward and compress the spring 808, causing the left end of the slider 802 to disengage from the notch 101, completing the unlocking.

[0048] In summary, compared with the prior art, the strut has at least the following beneficial effects: The present utility model uses the first support arm 1, the second support arm 2, the third support arm 7, the self-locking mechanism 8 and the wire rope 5 in cooperation. When the strut is opened, the first support arm 1 will push the slider 802 to move. The slider 802 drives the two blocks 801 to move rightward in the limiting hole 701 through the limiting screw 805 and the connecting plate. At the same time, the slider 802 compresses the spring 808. When it reaches the notch 101, the slider 802 will be pressed into the notch 101 of the first support arm 1 by the spring 808 to achieve the self-locking effect. When unlocking, the wire rope 5 can be pulled by the handle 501, so that the wire rope 5 drives the slider 802 to disengage from the notch 101 through the block 801 to achieve unlocking. Moreover, the self-locking mechanism has fewer parts, which can greatly reduce the cost.

[0049] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A support rod, characterized in that: include: A first support (3); A first support arm (1), the bottom end of the first support arm (1) being connected to one side of the first support base (3) and being rotatable relative to the first support base (3); A second support arm (2) and a third support arm (7), wherein the second support arm (2) and the third support arm (7) are arranged in parallel on both sides of the top end of the first support arm (1) and can rotate relative to the first support arm (1); A second support (4), the bottom end of the second support (4) being connected to the top end of the second support arm (2) and the top end of the third support arm (7) and being rotatable relative to the second support arm (2) and the third support arm (7); A self-locking mechanism (8), the self-locking mechanism (8) being installed between the second support arm (2) and the third support arm (7) and close to one end of the first support arm (1) and capable of locking the first support arm (1); A steel wire rope (5), wherein the steel wire rope (5) is arranged on the front side of the second support arm (2), one end of the steel wire rope (5) is connected to the self-locking mechanism (8) and the other end of the steel wire rope is fixedly connected to a handle (501) for unlocking.

2. A brace according to claim 1, characterized in that: A gasket (302) is provided between the first support arm (1) and the first support seat (3); a second rivet (301) is provided inside the first support arm (1); one end of the second rivet (301) passes through the first support arm (1) and the gasket (302) and extends to the rear side of the first support seat (3) and is threadedly engaged with a first nut (303).

3. A brace according to claim 1, characterized in that: A first washer (202) is provided between the second arm (2), the third arm (7) and the first arm (1); the third arm (7), the second arm (2) and the first arm (1) are riveted together by a first rivet (201).

4. A brace according to claim 1, characterized in that: Two triangular plates are fixedly connected to the bottom of the second support (4); the two triangular plates are located between the second support arm (2) and the third support arm (7); and a third gasket is provided between the triangular plates and the second support arm (2) and the third support arm (7); the two triangular plates, the second support arm (2) and the third support arm (7) are riveted together by a third rivet (401).

5. A brace according to claim 1, characterized in that: The middle part of the third arm (7) and the middle part of the second arm (2) are both provided with a limiting hole (701) and a mounting hole (702) that match the self-locking mechanism (8), and the mounting hole (702) is located on the right side of the limiting hole (701).

6. A brace according to claim 5, characterized in that: The self-locking mechanism (8) comprises: Two clamping blocks (801), a connecting plate being fixedly connected between the lower ends of the two clamping blocks (801), the ends of the two clamping blocks (801) being away from each other being respectively slidably fitted into the interior of the limiting holes (701), and a wire hole (811) for inserting a steel wire rope (5) is provided at a corner of the front clamping block (801); A slider (802), wherein a matching groove (804) matching with the connecting plate is provided at the middle of the bottom end of the slider (802), the slider (802) is installed between the two clamping blocks (801) and the matching groove (804) at the bottom end thereof contacts the connecting plate, an adjustment hole (810) connected with the matching groove (804) is provided at the top end of the slider (802), a limiting screw (805) is inserted inside the bottom end of the connecting plate, the top end of the limiting screw (805) passes through the connecting plate, the matching groove (804) and the adjusting hole (810) in sequence and extends to the upper part to be threadedly matched with a second nut (812); A sleeve (806), the sleeve (806) being arranged on the right side of the slider (802), and a clearance groove (807) being arranged in the middle of both ends of the sleeve (806), and the clearance groove (807) on the right side is slidably matched with the right end of the slider (802); A fixing block (809), the fixing block (809) is cross-shaped and is inserted into the inside of the air avoidance groove (807) on the right side, and the front and rear ends of the fixing block (809) are respectively inserted into the inside of the mounting hole (702); A spring (808), wherein the spring (808) is arranged inside the left end of the sleeve (806), and two ends of the spring (808) are respectively in contact with the slider (802) and the fixed block (809).

7. A brace according to claim 6, characterized in that: The length of the matching groove (804) is greater than the length of the connecting plate, the length of the clamping block (801) is less than the length of the limiting hole (701), the upper surface of the connecting plate and the inner top wall of the matching groove (804) are both provided with mutually meshing rolling teeth (803), the end of the slider (802) away from the sleeve (806) is provided with an inclined surface, the end of the first support arm (1) close to the slider (802) is provided with a notch (101) and a slope surface is provided below the notch (101) for cooperating with the inclined surface to push the slider (802) to move.

8. A brace according to claim 1, characterized in that: The front side of the second arm (2) is provided with a wire-passing mechanism and a limiting mechanism for guiding and limiting the steel wire rope (5), and the wire-passing mechanism is located on the right side of the limiting mechanism.

9. A brace according to claim 8, characterized in that: The wire passing mechanism comprises two rollers (603) arranged opposite to each other, the two rollers (603) are threadedly engaged with the second support arm (2) through a step screw (602), a second washer (604) is provided between the roller (603) and the second support arm (2), and the steel wire rope (5) is located between the two rollers (603).

10. A brace according to claim 8, characterized in that: The limiting mechanism comprises a limiting member (6), the limiting member (6) is in a "X" shape and the limiting member (6) is coaxial with the steel wire rope (5). The limiting member (6) is fixedly mounted on the second supporting arm (2) by means of screws (601).

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