Self-locking handheld sucker

Abstract

The invention provides a self-locking handheld suction cup. The self-locking handheld suction cup comprises a suction cup body and a pull rod. The suction cup body is provided with an annular sealing face, a negative pressure cavity, an air suction chamber and an air hole communicating the negative pressure cavity with the air suction chamber. A flange and a diaphragm are arranged on the inner side of the suction chamber; the flange is provided with a plurality of guide holes which are annularly and uniformly distributed, and sliding blocks and spring pieces are arranged in the guide holes; the diaphragm divides the air suction chamber into a first air suction chamber and a second air suction chamber; a bone rod is arranged on the diaphragm, the far end of the bone rod is movably connected to the sliding block, and the near end of the bone rod is movably connected to the first end of the pull rod; in the initial state, the diaphragm is in a conical surface shape, the conical top end of the diaphragm faces the first air suction chamber, and all the spring pieces are in the natural state. In the adsorption state, the diaphragm is pulled by the pull rod to enter the state symmetrical to the diaphragm in the initial state, the conical top end of the diaphragm faces the second air suction chamber, and all the spring pieces are in the natural state. When the device is in an adsorption state, an operator can loosen the pull rod and does not need to keep the pull state of the pull rod all the time.

Description

Technical Field

[0001] The invention relates to the technical field of glass processing, and in particular to a self-locking handheld suction cup. Background Art

[0002] When transporting glass plates, manual transport is sometimes required due to factors such as flexibility and convenience. Currently, a handheld suction cup (patent number: CN201810783971.6) is disclosed. The suction cup is provided with a suction cup pad, a suction cup cover fixed on the suction cup pad, and an operating part arranged opposite to the suction cup pad. The operating part can be used to change the volume of the first suction cup space formed in the handheld suction cup, so that the air groove on the suction cup pad can generate a negative pressure relative to the object to be transported, thereby generating suction so that the glass waiting to be transported is adsorbed by the suction cup pad for transportation.

[0003] However, when this structure is in the adsorption state, the pull ring needs to be manually pulled, and the pull ring cannot be loosened during the entire handling process. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a self-locking handheld suction cup.

[0005] The present invention provides a self-locking handheld suction cup, which has an initial state and a suction state. The suction cup comprises: a suction cup body and a pull rod slidably mounted on the suction cup body, wherein:

[0006] The suction cup body has an annular sealing surface in contact with the object to be transported, a negative pressure cavity formed inside the annular sealing surface, an air suction chamber located above the negative pressure cavity, and an air hole connecting the negative pressure cavity and the air suction chamber;

[0007] The inner side of the suction chamber is provided with a flange arranged along the circumference of the inner wall thereof and a deformable diaphragm; the flange is provided with a plurality of guide holes evenly distributed in an annular shape, all of which are linear holes, and one end of all of which faces the center of the suction chamber; each guide hole is provided with a slider that can slide inside the slider and a spring member arranged on the side of the slider away from the center of the suction chamber, and one end of each spring is connected to the flange, and the other end is connected to the corresponding slider;

[0008] The diaphragm is arranged on the inner side of the flange, and the outer edge of the diaphragm is connected to the flange to divide the suction chamber into a first suction chamber close to the negative pressure chamber and a second suction chamber away from the negative pressure chamber; the diaphragm is provided with a plurality of bone rods arranged radially, and the distal ends of the bone rods are movably connected to the sliders one by one, and the proximal ends of the bone rods are movably connected to the first ends of the pull rods, and the first ends of the pull rods are located in the second suction chamber, and the second ends of the pull rods are located outside the suction cup body away from the adsorption surface;

[0009] In the initial state, the diaphragm is in a conical shape, the top of the cone of the diaphragm faces the first suction chamber, and all spring parts are in a natural state;

[0010] In the adsorption state, the diaphragm is pulled by the pull rod into a state symmetrical to the diaphragm in the initial state, and the cone top of the diaphragm faces the second suction chamber, and all spring parts are in a natural state.

[0011] Preferably, both ends of the bone rod are separated from the diaphragm, and the portion between the two ends of the bone rod is attached to and fixed to the diaphragm.

[0012] Preferably, a circular hole is provided in the center of the diaphragm, and a flexible sheet made of a flexible material and connected to the diaphragm is provided in the circular hole.

[0013] Preferably, a radially stretchable elastic band is provided at the contact point between the diaphragm and the flange.

[0014] Preferably, the elastic band is a circular ring structure, the outer circle of which is connected to the flange, and the inner circle of which is connected to the outer edge of the diaphragm.

[0015] Preferably, a pull ring is provided at the second end of the pull rod.

[0016] Preferably, a gripping portion is provided on the side of the suction cup body located on the side where the second end of the pull rod is located.

[0017] Preferably, the diaphragm is made of a deformable flexible material.

[0018] Preferably, the diaphragm is made of soft rubber, silicone or soft magnetic material.

[0019] In the present invention, a flange and a deformable diaphragm are arranged on the inner side of the suction chamber; a plurality of annularly evenly distributed guide holes are arranged on the flange, and all the guide holes are linear holes, and one end of all the guide holes faces the center of the suction chamber; each guide hole is provided with a slider that can slide inside the guide hole and a spring member arranged on the side of the slider away from the center of the suction chamber, and one end of each spring is connected to the flange, and the other end is connected to the corresponding slider; at the same time, the diaphragm is arranged on the inner side of the flange, and the outer edge of the diaphragm is fixed to the inner edge of the flange to separate the suction chamber into a first suction chamber and a second suction chamber; the distal ends of the bone rods arranged on the diaphragm are movably connected to the sliders one by one, and the proximal ends of the bone rods are movably connected to the first end of the pull rod, and the first end of the pull rod is located in the second suction chamber, and the second end of the pull rod is located outside the suction cup body away from the adsorption surface, so that the pull rod can pull the center of the diaphragm to move, so that the diaphragm is deformed. The diaphragm is in a conical shape, and when the diaphragm is in the initial state, the top of the diaphragm cone faces the first suction chamber, and all spring parts are in a natural state. When the pull rod is lifted up to make the diaphragm enter a state symmetrical to the diaphragm in the initial state, all spring parts are in a natural state. This structural design allows the operator to release the pull rod when the suction cup is in the adsorption state, without having to keep the pull rod pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a self-locking handheld suction cup in an initial state proposed by the present invention;

[0021] Figure 2 This is a structural schematic diagram of a self-locking handheld suction cup in an adsorption state proposed by the present invention;

[0022] Figure 3 The present invention provides a schematic diagram of the working principle of a self-locking handheld suction cup. DETAILED DESCRIPTION

[0023] Reference Figure 1-2 The present invention proposes a self-locking handheld suction cup, which has an initial state and an adsorption state. The suction cup comprises: a suction cup body 1 and a pull rod 2 slidably assembled on the suction cup body 1, wherein: the suction cup body 1 has an annular sealing surface 3 in contact with the object to be transported, a negative pressure cavity 4 formed on the inner side of the annular sealing surface 3, an air suction chamber located above the negative pressure cavity 4, and an air hole 5 connecting the negative pressure cavity 4 and the air suction chamber.

[0024] The inside of the suction chamber is provided with a flange 6 and a deformable diaphragm 7 arranged along the circumference of its inner wall; the flange 6 is provided with a plurality of guide holes evenly distributed in an annular shape, all of which are linear holes, and one end of all the guide holes is directed toward the center of the suction chamber; each guide hole is provided with a slider 8 that can slide inside the guide hole and a spring member 9 arranged on the side of the slider 8 away from the center of the suction chamber, and one end of each spring is connected to the flange 6, and the other end is connected to the corresponding slider 8.

[0025] The diaphragm 7 is arranged on the inner side of the flange 6, and the outer edge of the diaphragm 7 is connected to the flange 6 to divide the suction chamber into a first suction chamber 10 close to the negative pressure chamber 4 and a second suction chamber 11 away from the negative pressure chamber 4; the diaphragm 7 is provided with a plurality of bone rods 12 arranged radially, and the distal ends of the bone rods 12 are movably connected to the sliders 8 one by one, and the proximal ends of the bone rods 12 are movably connected to the first end of the pull rod 2, and the first end of the pull rod 2 is located in the second suction chamber 11, and the second end of the pull rod 2 is located outside the suction cup body 1 away from the adsorption surface, so that when the staff pulls the pull rod 2, the bone rod 12 connected to the pull rod 2 pushes the slider 8 to slide in the guide groove, and the spring member 9 connected to the slider 8 switches between compression and reset, and at the same time, the diaphragm 7 is deformed by the bone rod 12, so as to utilize the deformation of the diaphragm 7 to change the internal space of the first suction chamber 10, thereby enabling negative pressure to be generated inside the negative pressure chamber 4.

[0026] In the initial state, the diaphragm 7 is in a conical shape, the top of the cone of the diaphragm 7 faces the first suction chamber 10, and all the spring parts 9 are in a natural state; in the adsorption state, the diaphragm 7 is pulled by the pull rod 2 into a state symmetrical to the diaphragm 7 in the initial state, and the top of the cone of the diaphragm 7 faces the second suction chamber 11, and all the spring parts 9 are in a natural state.

[0027] Reference Figure 3Working principle: In the initial state, the elastic force of the elastic member is used to keep the diaphragm 7 in a stable state. When transporting, the annular sealing surface 3 of the suction cup is in contact with the object to be transported, so that a closed space is formed inside the negative pressure chamber 4; then, the pull rod 2 is lifted to drive the center of the diaphragm 7 to lift up through the bone rod 12, and at the same time, the slider 8 is pushed away from the center of the suction chamber. At this time, the spring member 9 gradually enters a compressed state; when the pull rod 2 is lifted and the bone rod 12 enters a horizontal state, the slider 8 is at the farthest end, and the extrusion force on the spring member 9 is also at the maximum value. At this time, the pull rod 2 is continued to be lifted, and the bone rod 12 begins to pull The movable slider 8 moves toward the center of the suction chamber, and the elastic member begins to gradually reset; when the cone top of the diaphragm 7 faces the second suction chamber 11 and is symmetrical with the diaphragm 7 in the initial state, the suction cup enters the adsorption state, and all spring members 9 are reset to the initial state, that is, all spring members 9 are in a natural state, and then the spring members 9 and the diaphragm 7 constitute the resistance to the downward movement of the pull rod 2, so that the pull rod 2 remains stable in this state, and then the operator can release the pull of the pull rod 2. When it is necessary to release the transported object, just push the pull rod 2 down to the initial state.

[0028] As can be seen from the above, the present invention provides a flange 6 and a deformable diaphragm 7 inside the suction chamber; a plurality of annular uniformly distributed guide holes are provided on the flange 6, and all the guide holes are linear holes, and one end of all the guide holes is toward the center of the suction chamber; each guide hole is provided with a slider 8 that can slide inside the slider 8 and a spring member 9 that is arranged on the side of the slider 8 away from the center of the suction chamber, and one end of each spring is connected to the flange 6, and the other end is connected to the corresponding slider 8; at the same time, the diaphragm 7 is arranged on the inner side of the flange 6, and The outer edge of the diaphragm 7 is fixed to the inner edge of the flange 6 to separate the suction chamber into a first suction chamber 10 and a second suction chamber 11; the distal ends of the bone rods 12 arranged on the diaphragm 7 are movably connected to the sliders 8 one by one, and the proximal ends of the bone rods 12 are movably connected to the first end of the pull rod 2, and the first end of the pull rod 2 is located in the second suction chamber 11, and the second end of the pull rod 2 is located outside the side of the suction cup body 1 away from the adsorption surface, so that the pull rod 2 can pull the center of the diaphragm 7 to move, so that the diaphragm 7 is deformed. The diaphragm 7 is in a conical shape, and when the diaphragm 7 is in the initial state, the top of the cone of the diaphragm 7 faces the first suction chamber 10, and all the spring members 9 are in a natural state. When the pull rod 2 is lifted up to make the diaphragm 7 enter a state symmetrical to the diaphragm 7 in the initial state, all the spring members 9 are in a natural state. This structural design allows the operator to release the pull rod 2 when the suction cup is in the adsorption state, without having to keep the pull rod 2 in the pulling state.

[0029] Furthermore, in this embodiment, both ends of the bone rod 12 are separated from the diaphragm 7, and the portion between the two ends of the bone rod 12 is attached to and fixed to the diaphragm 7. This structural design facilitates the connection of the bone rod 12 to the slider 8 and the pull rod 2, and also facilitates the connection of the diaphragm 7 to the flange 6.

[0030] Furthermore, in this embodiment, a circular hole is provided in the center of the diaphragm 7, and a flexible sheet 13 made of flexible material and connected to the diaphragm 7 is provided in the circular hole to facilitate the switching of the diaphragm 7 between the initial state and the adsorption state.

[0031] Furthermore, in this embodiment, a radially retractable elastic band is provided at the contact point between the diaphragm 7 and the flange 6, so that the diaphragm 7 has a better deformation ability when switching between the initial state and the adsorption state.

[0032] Specifically, the elastic band is a circular ring structure, the outer circle of which is connected to the flange 6 , and the inner circle of which is connected to the outer edge of the diaphragm 7 .

[0033] In addition, in this embodiment, a pull ring is provided at the second end of the pull rod 2 to facilitate pulling the pull rod 2 .

[0034] In this embodiment, a gripping portion 14 is provided on the side of the suction cup body 1 located on the side where the second end of the pull rod 2 is located, and the suction cup is grasped by the gripping portion.

[0035] In addition, in this embodiment, the diaphragm 7 is made of a deformable flexible material, specifically rubber, silicone, soft magnetic material, etc.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-locking handheld suction cup, the suction cup having an initial state and a suction state, characterized in that: The suction cup comprises: a suction cup body (1) and a pull rod (2) slidably mounted on the suction cup body (1), wherein: The suction cup body (1) comprises an annular sealing surface (3) in contact with the object to be transported, a negative pressure cavity (4) formed inside the annular sealing surface (3), an air suction chamber located above the negative pressure cavity (4), and an air hole (5) connecting the negative pressure cavity (4) and the air suction chamber; The inner side of the air suction chamber is provided with a flange (6) arranged along the circumference of the inner wall thereof and a deformable diaphragm (7); the flange (6) is provided with a plurality of guide holes evenly distributed in an annular shape, all of which are linear holes, and one end of all of which faces the center of the air suction chamber; each guide hole is provided with a slider (8) which can slide inside the slider and a spring member (9) arranged on the side of the slider (8) away from the center of the air suction chamber, and one end of each spring is connected to the flange (6), and the other end is connected to the corresponding slider (8); The diaphragm (7) is arranged on the inner side of the flange (6), and the outer edge of the diaphragm (7) is connected to the flange (6) to divide the suction chamber into a first suction chamber (10) on the side close to the negative pressure chamber (4) and a second suction chamber (11) on the side away from the negative pressure chamber (4); the diaphragm (7) is provided with a plurality of bone rods (12) arranged radially, and the distal ends of the bone rods (12) are movably connected to the sliders (8) in a one-to-one correspondence, and the proximal ends of the bone rods (12) are movably connected to the first ends of the pull rods (2), and the first ends of the pull rods (2) are located in the second suction chamber (11), and the second ends of the pull rods (2) are located outside the suction cup body (1) on the side away from the adsorption surface; In the initial state, the diaphragm (7) is in a conical shape, the top of the cone of the diaphragm (7) faces the first suction chamber (10), and all the spring members (9) are in a natural state; In the adsorption state, the diaphragm (7) is pulled by the pull rod (2) into a state symmetrical with the diaphragm (7) in the initial state, and the cone top of the diaphragm (7) faces the second suction chamber (11), and all spring members (9) are in a natural state.

2. The self-locking handheld suction cup according to claim 1, characterized in that: Both ends of the bone rod (12) are in a state of being separated from the diaphragm (7), and the portion between the two ends of the bone rod (12) is attached to and fixed to the diaphragm (7).

3. The self-locking handheld suction cup according to claim 1, characterized in that: A circular hole is arranged at the center of the diaphragm (7), and a flexible sheet (13) made of a flexible material and connected to the diaphragm (7) is arranged in the circular hole.

4. The self-locking handheld suction cup according to claim 1, characterized in that: A radially retractable elastic band is provided at the contact point between the diaphragm (7) and the flange (6).

5. The self-locking handheld suction cup according to claim 4, characterized in that: The elastic band is a circular ring structure, the outer circle of which is connected to the flange (6), and the inner circle of which is connected to the outer edge of the diaphragm (7).

6. The self-locking handheld suction cup according to claim 1, characterized in that: The second end of the pull rod (2) is provided with a pull ring.

7. The self-locking handheld suction cup according to claim 1, characterized in that: A gripping portion (14) is provided on the side of the suction cup body (1) located on the side where the second end of the pull rod (2) is located.

8. The self-locking handheld suction cup according to any one of claims 1 to 7, characterized in that: The diaphragm (7) is made of a deformable flexible material.

9. The self-locking handheld suction cup according to claim 8, characterized in that: The material of the diaphragm (7) is soft rubber, silica gel, or soft magnetic material.

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