CN218791367U - Opening and closing joint - Google Patents

Abstract

The utility model relates to a folding step ladder technical field discloses a joint opens and shuts, including first support arm and second support arm, first support arm includes first hinged end, the second support arm includes the second hinged end, the cavity has been seted up in the second hinged end, first hinged end is located the cavity and rotates with the second hinged end and be connected, be provided with spacing subassembly and display element in the cavity, spacing subassembly includes the stopper, the stopper slides and sets up in the cavity, a plurality of draw-in grooves have been seted up on the first hinged end, the stopper can block and locate in the draw-in groove, the display element passes through the torsional spring and rotates and install in the cavity, the one end of display element with be located the cavity, the other end is worn out outside the cavity, one end that the display element is located the cavity is located the slip direction of stopper. The utility model discloses before can solving user's use stool or stool, need through pressing down many times whether the block of inspection limit structure targets in place, more troublesome problem.

Description

Opening and closing joint

Technical Field

The utility model relates to a folding step stool technical field especially relates to a joint opens and shuts.

Background

Ladders or stools in the prior art are mostly arranged as folding ladders or stools for convenient carrying and storage, and rotary opening and closing joints are often used in the folding ladders or stools.

At present, the rotary opening and closing joint mostly realizes the angle of fixing two arms after rotation through a limiting structure. For aesthetic reasons, the limiting structure is mostly hidden inside the opening and closing joint. But the user can't audio-visually observe whether the block of limit structure targets in place, if limit structure does not block and targets in place, the user uses with ease, and the block joint is very easily appeared and is rotatory, leads to the user to tumble or fall down, before needing user's use stool or stool, whether block of limit structure targets in place through pressing down the inspection many times, and is troublesome.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an open and shut joint solves before the user uses stool or stool, need through pressing down many times to inspect whether block of limit structure targets in place, more troublesome problem.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

the utility model provides a joint opens and shuts, includes first support arm and second support arm, first support arm includes first hinged end, the second support arm includes the second hinged end, the cavity has been seted up in the second hinged end, first hinged end is located the cavity and rotates with the second hinged end and be connected, be provided with spacing subassembly and display element in the cavity, spacing subassembly includes the stopper, the stopper slides and sets up in the cavity, a plurality of draw-in grooves have been seted up on the first hinged end, the stopper can block and locate in the draw-in groove, the display element passes through the torsional spring and rotates and install in the cavity, the one end of display element with be located the cavity, the other end is worn out outside the cavity, one end that the display element is located the cavity is located the sliding direction of stopper.

Furthermore, the two sides of the cavity are provided with sliding grooves, and the two ends of the limiting block are inserted into the two sliding grooves respectively.

Furthermore, the second support arm is provided with the installation piece in the cavity internal fixation, be provided with the spring on the installation piece, the one end and the stopper fixed connection of spring, the other end and installation piece fixed connection.

Further, the display part includes two lamellar bodies that the structure is the same, two the lamellar body is located the both sides of first hinged end respectively, two all be provided with the installation ear on the lamellar body, two the installation ear passes through the torsional spring and rotates and install in the cavity, the one end of lamellar body is located the cavity, and the other end is worn out outside the cavity.

Furthermore, two the one end that the lamellar body is located the cavity all is equipped with the contact, two the one end that the lamellar body is located the cavity outside is provided with same display head, the distance of contact and installation ear is less than the distance of display head and installation ear.

Further, a trigger is fixedly arranged on the display head.

The utility model has the advantages that:

1. the utility model discloses a set up the display part, the stopper card is gone into the in-process of draw-in groove, and the stopper will promote the contact head removal of display part to make the display part rotatory, drive the display head rotation of display part, can judge whether the stopper card goes into the draw-in groove completely according to the position of display head, simple, clear, need not to put in place through pressing down the check limit structure block many times.

2. The utility model discloses a set up installation piece and spring, when first support arm and second support arm expand, the spring can promote the stopper in to the draw-in groove automatically, need not the manual stopper that removes.

3. The utility model discloses the display part passes through the torsional spring and rotates and install in the cavity, and when the stopper broke away from with the contact head that shows the piece, the torsional spring can make display part automatic re-setting, guarantees that the display part can accurately show the block state of stopper.

4. The utility model discloses a set up the trigger, when the block of stopper and draw-in groove is relieved to needs, through pulling the trigger, release the draw-in groove with the stopper, can relieve the block of stopper and draw-in groove.

Drawings

Fig. 1 is a schematic structural view of an opening and closing joint of the present invention;

fig. 2 is a schematic view of a split structure of an opening and closing joint of the present invention;

fig. 3 is a schematic view of a state structure of the opening/closing joint of the present invention when it is unfolded at a certain angle, the limiting block is clamped into the clamping groove;

fig. 4 is a schematic view of a state structure of the opening/closing joint of the present invention when it is unfolded at a certain angle, the limiting block is not clamped into the slot;

the display device comprises a first support arm 1, a first hinged end 11, a clamping groove 111, a second support arm 2, a second hinged end 21, a cavity 22, a sliding groove 221, an installation block 23, a spring 231, a plate body 24, a display part 3, a sheet body 31, an installation lug 311, a contact head 32, a display head 33, a trigger 331, a limiting block 4 and a torsion spring 5.

Detailed Description

The following description is given by way of specific embodiments, and those skilled in the art will appreciate the advantages and effects of the present invention from the disclosure provided in the present specification. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, and are only schematic drawings rather than actual drawings, which should not be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "front", "back", etc. indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore the terms describing the position relationship in the drawings are used only for exemplary illustration, and not for limiting the present invention, and those skilled in the art can understand the specific meaning according to the specific situation.

As shown in fig. 1-4, the utility model discloses a joint opens and shuts, including first support arm 1 and second support arm 2, first support arm 1 includes first hinged end 11, and second support arm 2 includes second hinged end 21, has seted up cavity 22 in the second hinged end 21, and first hinged end 11 is located cavity 22 and rotates with second hinged end 21 to be connected, and first hinged end 11 and second hinged end 21's rotation connected mode is with abundant disclosure among the prior art, so this no longer has been described in too much detail.

In this embodiment, the second arm 2 is formed by combining two plates 24, and the area between the two plates 24 is the cavity 22.

Be provided with spacing subassembly and display member 3 in the cavity 22, spacing subassembly includes stopper 4, and spout 221 has all been seted up to the both sides of cavity 22, and stopper 4's both ends are inserted respectively and are located two spout 221 in, realize that stopper 4 slides and set up in cavity 22. A plurality of slots 111 are formed in the first hinge end 11, and the number of the slots 111 can be set according to actual needs, and an included angle between two adjacent slots 111. When the limiting block 4 is clamped in the clamping groove 111, the angle between the first support arm 1 and the second support arm 2 is locked, and when the limiting block 4 exits from the clamping groove 111, the first support arm 1 and the second support arm 2 can rotate relatively.

In this embodiment, display 3 includes two lamellar bodies 31 that the structure is the same, and two lamellar bodies 31 are located the both sides of first hinged end 11 respectively, avoid display 3 to influence first hinged end 11 and rotate, all are provided with installation ear 311 on two lamellar bodies 31, and two installation ears 311 rotate through torsional spring 5 and install in cavity 22, realize that display 3 rotates and installs in cavity 22. One end of the sheet 31 is located in the cavity 22, and the other end passes through the cavity 22. One end of the display part 3 is located in the cavity 22, the other end penetrates out of the cavity 22, one end of the display part 3 located in the cavity 22 is located in the sliding direction of the limiting block 4, namely, one end of the two sheet bodies 31 located in the cavity 22 is provided with the contact head 32, the contact head 32 is located in the sliding direction of the limiting block 4, one end of the two sheet bodies 31 located outside the cavity 22 is provided with the same display head 33, and the distance between the contact head 32 and the mounting lug 311 is smaller than the distance between the display head 33 and the mounting lug 311.

The stopper 4 card goes into the in-process of draw-in groove 111, and stopper 4 will promote the contact 32 removal of display 3 to make display 3 rotatory, drive display 3's display 33 and rotate, can judge whether stopper 4 card goes into draw-in groove 111 completely according to display 33's position.

The second arm 2 is fixedly provided with a mounting block 23 in the cavity 22, the mounting block 23 is provided with a spring 231, and the elasticity of the spring 231 is much greater than that of the torsion spring 5, so that the spring 231 can push the limit block 4 into the slot 111. One end of the spring 231 is fixedly connected with the limiting block 4, and the other end is fixedly connected with the mounting block 23. By arranging the mounting block 23 and the spring 231, when the first arm 1 and the second arm 2 are unfolded, the spring 231 can automatically push the stop block 4 into the slot 111.

The trigger 331 is fixedly mounted on the display head 33, and by providing the trigger 331, when the engagement between the stopper 4 and the card slot 111 needs to be released, the stopper 4 is pushed out of the card slot 111 by pulling the trigger 331, so that the engagement between the stopper 4 and the card slot 111 can be released.

The utility model discloses a use method as follows: when adjusting the contained angle between first support arm 1 and the second support arm 2, rotatory first support arm 1 or second support arm 2, when stopper 4 aligns with draw-in groove 111, spring 231 promotes stopper 4 in to draw-in groove 111, the in-process that stopper 4 removed, contact 32 that will promote display element 3 removes, thereby make display element 3 rotatory, the display head 33 that drives display element 3 rotates, thereby can judge whether stopper 4 blocks completely in draw-in groove 111 according to display head 33's position, and is simple, clear, need not to target in place through pressing the block of check limit structure many times.

The limiting block 4 is clamped into the clamping groove 111, when the included angle between the first support arm 1 and the second support arm 2 needs to be adjusted again, the limiting block 4 is pushed out of the clamping groove 111 by pulling the trigger 331, the clamping between the limiting block 4 and the clamping groove 111 can be released, and the first support arm 1 or the second support arm 2 can be rotated again.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims (6)

1. The utility model provides a joint opens and shuts, includes first support arm and second support arm, first support arm includes the first hinged end, the second support arm includes the second hinged end, the cavity has been seted up in the second hinged end, the first hinged end is located the cavity and rotates with the second hinged end and be connected its characterized in that: the cavity is internally provided with a limiting component and a display part, the limiting component comprises a limiting block, the limiting block is arranged in the cavity in a sliding mode, the first hinged end is provided with a plurality of clamping grooves, the limiting block can be clamped in the clamping grooves, the display part is installed in the cavity in a rotating mode through a torsional spring, one end of the display part is located in the cavity, the other end of the display part penetrates out of the cavity, and one end of the display part, which is located in the cavity, is located in the sliding direction of the limiting block.

2. The opening-closing joint according to claim 1, wherein: the two sides of the cavity are provided with sliding grooves, and the two ends of the limiting block are inserted into the two sliding grooves respectively.

3. The opening-closing joint according to claim 1, characterized in that: the second support arm is fixedly provided with an installation block in the cavity, the installation block is provided with a spring, one end of the spring is fixedly connected with the limiting block, and the other end of the spring is fixedly connected with the installation block.

4. The opening-closing joint according to claim 1, wherein: the display part comprises two sheet bodies with the same structure, wherein the sheet bodies are respectively positioned on two sides of the first hinged end, and the two sheet bodies are provided with installation lugs which are installed in the cavity through torsion spring rotation, one end of each sheet body is positioned in the cavity, and the other end of each sheet body penetrates out of the cavity.

5. The opening-closing joint according to claim 4, wherein: two the one end that the lamellar body is located the cavity all is equipped with the contact head, two the one end that the lamellar body is located the cavity outside is provided with same display head, the distance of contact head and installation ear is less than the distance of display head and installation ear.

6. The opening-closing joint according to claim 5, wherein: and a trigger is fixedly arranged on the display head.

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