Negative pressure adsorption type suspension device

Abstract

The utility model discloses a negative pressure adsorption type suspension device which comprises a sucker, a gland, a knob and a screw rod, one end of the screw rod is fixedly connected with the sucker, the other end of the screw rod is in threaded connection with the knob, and the knob is rotated to drive the screw rod to move up and down so that the sucker and an adsorbed surface can be adsorbed or separated. A reinforcing boss for reinforcing the structural strength of the middle part of the sucking disc is arranged between the screw rod and the sucking disc; the limiting boss is arranged on the reinforcing boss so as to limit the maximum displacement of upward movement of the screw rod; a limiting boss is arranged on the screw rod, a through hole for the screw rod to penetrate through is formed in the gland, the limiting boss is larger than the through hole, and when the screw rod moves upwards to enable the suction cup to arch upwards to a set position, the limiting boss is connected with the gland in an abutting mode to limit the deformation degree of the suction cup. And the suction cup is prevented from being completely pulled into the gland, so that the suction cup and an adsorbed surface are separated due to air leakage.

Description

TECHNICAL FIELD

[0001] The utility model belongs to daily necessities field, especially relate to a negative pressure adsorption formula suspension device. BACKGROUND

[0002] In today's industrial production, home life and many fields, the application of suspension device is extremely wide, and it plays a key role in the fixation and support of objects. With the continuous development of science and technology, people's performance and function requirements of the suspension device are also increasing. In some occasions with high requirements for surface flatness, such as the installation of high-grade furniture and precision instruments and equipment, the use of simple wall hanging devices as described above may cause damage to the adsorbed surface, leaving traces difficult to repair, affecting the appearance and normal operation of the equipment.

[0003] In addition, with the continuous improvement of people's pursuit of life quality and work efficiency, higher requirements for the stability, flexibility and applicability of the suspension device are put forward. For example, in some temporary display occasions, it is necessary to frequently change the position and height of the suspended objects, and the traditional fixed suspension method is difficult to meet the demand of rapid adjustment.

[0004] The utility model discloses a kind of strong hanger suction cups with publication number CN210889688U, including suction disc main body, suction disc gland, adjusting screw is installed in suction disc main body, the suction disc main body is provided with adsorption portion in middle and is provided with tight compression portion at edge, convex portion is provided on tight compression portion, the bottom end of outermost convex portion extends to form recessed sealing groove, sealing ring is provided on the outermost edge of sealing groove and protrudes upwards, correspondingly, the recessed portion corresponding to the convex portion of suction disc main body is provided in the skirt edge portion of gland, the outermost edge of the recessed portion of gland skirt edge portion is provided with downwardly extending gland outer ring, prevent rubber suction disc from shrinking to the center of suction disc under vacuum state, but the structural strength of its convex portion is not enough, easy to be deformed by pulling, so that suction disc is pulled into the inside of gland and makes suction disc and adsorbed surface leak gas separation.

[0005] Therefore, it is necessary to set up a kind of adsorption device capable of limiting the deformation degree of suction disc. UTILITY MODEL CONTENTS

[0006] The utility model provides a negative pressure adsorption formula suspension device to solve the problems existing in prior art.

[0007] The utility model adopts the following technical scheme:

[0008] A kind of negative pressure adsorption type suspension device, including suction cup, gland, knob and screw rod, one end of screw rod is fixedly connected with suction cup, the other end is threadedly connected with knob, rotate knob to drive screw rod to move up and down, to make suction cup and the adsorption or separation between being adsorbed surface, screw rod and suction cup have: for strengthening the reinforcing boss of the middle structure strength of suction cup;With limiting boss, it is configured on reinforcing boss to limit the maximum displacement of screw rod moving upwards;Gland has the through hole for screw rod to pass through, limiting boss is larger than the through hole, when the suction cup is arched upwards to set position by the upward movement of screw rod, the limiting boss is in abutment with gland to limit the deformation degree of suction cup, in turn prevent the air separation between suction cup and being adsorbed surface.

[0009] Preferably, reinforcing rib is arranged on the periphery of reinforcing boss, and the reinforcing rib is integrally arranged with the suction cup.

[0010] Preferably, the reinforcing rib is arranged to extend from the middle part to the outer periphery of the suction cup.

[0011] Preferably, a guide part is arranged in the gland, and the guide part is arranged to guide the upward and downward movement of the reinforcing rib.

[0012] Preferably, the guide part is arranged with an outwardly inclined slope to guide the reinforcing rib to the position corresponding to the guide part.

[0013] Preferably, the reinforcing boss and the limiting boss are arranged in a cylindrical shape and on the same axis, and the diameter of the reinforcing boss is larger than the diameter of the limiting boss.

[0014] Preferably, the gland comprises an inner pressing wall and an outer pressing wall, and the inner pressing wall is arranged in a circular shape and is arranged in a spaced manner with the outer pressing wall.

[0015] Preferably, the knob is arranged above the gland, and the outer pressing part of the knob is arranged to press between the inner pressing wall and the outer pressing wall.

[0016] Preferably, an annular protrusion is arranged on the suction cup, and the annular protrusion is arranged at the end of the suction cup in contact with the adsorbed surface.

[0017] Preferably, the reinforcing boss and the limiting boss are integrally arranged with the screw rod.

[0018] The above technical scheme has the following beneficial effects:

[0019] The reinforcing boss and the limiting boss are designed, when the screw rod pulls the suction cup to arch upwards and deform, the limiting boss is in abutment with the gland to limit the deformation degree of the suction cup, so that the suction cup is not pulled into the gland completely, and the air leakage between the suction cup and the adsorbed surface is avoided to cause separation.

[0020] By setting the reinforcing rib, the structural strength of the suction cup is further enhanced, the overall rigidity and stability of the suction cup are improved, and the impact resistance and compression resistance are improved.

[0021] By setting the annular protrusion, the negative pressure space between the suction cup and the adsorbed surface is increased, and the stability and reliability of adsorption are improved.

[0022] By setting the guide part and the outwardly inclined slope, the up and down movement of the reinforcing rib is guided, the movement direction of the suction cup is limited, and the overall movement of the suction cup during the rotation of the knob is avoided, which causes air leakage between the suction cup and the adsorbed surface.

[0023] The negative pressure adsorption type suspension device has the advantages of simple structure, convenient operation, stable adsorption, strong structural strength, and is suitable for various occasions requiring suspension or fixation, especially in the case of frequent replacement of suspension position or heavy weight of suspended objects. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below, and obviously, the drawings in the following description only relate to some embodiments of the present application, but not limit the present application.

[0025] Figure 1 is the explosion drawing of the present application;

[0026] Figure 2 is the sectional view of the present application;

[0027] Figure 3 is the schematic view of the suction cup structure of the present application Figure 1 ;

[0028] Figure 4 is the schematic view of the suction cup structure of the present application Figure 2 ;

[0029] Figure 5 is the schematic view of the gland structure of the present application;

[0030] Figure 6 is the schematic view of the knob structure of the present application.

[0031] EXPLANATION OF REFERENCE NUMERALS:

[0032] 1-suction cup; 10-screw rod; 11-strengthening boss; 12-limiting boss; 13-reinforcing rib; 14-annular protrusion; 2-gland; 20-inner pressing wall; 200-guide part; 21-outer pressing wall; 3-knob; 30-outer pressing part; 31-connection part. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the present application will be further described in detail below with reference to the drawings. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0035] Unless otherwise defined, technical terms or scientific terms used in the present patent document should be understood as having the common meaning to those of ordinary skill in the art to which the present application belongs. The terms "first", "second" and similar terms used in the patent specification and claims of the present application do not represent any order, number or importance, but are only used to distinguish different components. Similarly, the terms "one", "an" or "the" and similar terms do not represent a quantity limitation, but represent the existence of at least one. The terms "including", "containing" and similar terms mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute position of the described object changes, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Some embodiments of the present application will be described in detail below with reference to the drawings. The features in the following embodiments can be combined with each other without conflict.

[0038] Embodiment 1:

[0039] Please refer toFigures 1-6 The present application relates to a kind of negative pressure adsorption type suspension device, it is mainly by suction cup 1, gland 2, knob 3 and screw rod 10 composition.By rotating knob 3 to drive screw rod 10 up and down movement, to control suction cup 1 and the adsorption or separation state between the surface to be adsorbed.This device is particularly suitable for smooth and flat surface, such as glass, ceramic tile etc., with simple structure, easy to operate, safe and reliable characteristics.

[0040] Please refer to Figures 1-3 A kind of negative pressure adsorption type suspension device, including suction cup 1, gland 2, knob 3 and screw rod 10, screw rod 10 one end is fixedly connected with suction cup 1, the other end is threadedly connected with knob 3, rotating knob 3 to drive screw rod 10 up and down movement, to make suction cup 1 and the adsorption or separation between the surface to be adsorbed, screw rod 10 and suction cup 1 between there is: for strengthening the reinforcing boss 11 of the middle structure strength of suction cup 1;With limiting boss 12, it is configured on reinforcing boss 11 to limit the maximum displacement of screw rod 10 upward movement;Gland 2 has the through hole for screw rod 10 to pass through, limiting boss 12 is greater than the through hole, when screw rod 10 moves upward and makes suction cup 1 arches upward to the set position, the limiting boss 12 and gland 2 abut to limit the deformation degree of suction cup 1, to prevent suction cup 1 and the surface to be adsorbed between air separation.

[0041] The negative pressure adsorption type suspension device in the embodiment mainly consists of suction cup 1, gland 2, knob 3 and screw rod 10. One end of the screw rod 10 is fixedly connected with the suction cup 1 by fastening means (such as welding, screwing, etc.), and the other end is provided with external threads, which are connected with the internal threads of the connecting part 31 of the knob 3. The user can drive the screw rod 10 to move up and down along its axial direction by rotating the knob 3, thereby controlling the adsorption or separation state between the suction cup 1 and the surface to be adsorbed.

[0042] In order to enhance the structural strength of the suction cup 1, especially the bearing capacity of the middle part, an integral reinforcing boss 11 is designed at the connection between the screw rod 10 and the suction cup 1. The reinforcing boss 11 not only increases the deformation resistance of the suction cup 1, but also provides a stable support structure for it. In addition, a limiting boss 12 is also provided on the reinforcing boss 11. The reinforcing boss 11 and the limiting boss 12 are both configured in a cylindrical shape and on the same axis, and the diameter of the reinforcing boss 11 is greater than that of the limiting boss 12. The limiting boss 12 is used to limit the maximum displacement of the screw rod 10 upward movement. When the screw rod 10 moves upward to a certain extent, the limiting boss 12 will abut against the gland 2, preventing the suction cup 1 from being pulled into the gland 2 entirely due to excessive stretching, so as to prevent the separation caused by air leakage between the suction cup 1 and the surface to be adsorbed.

[0043] The reinforcing boss 11 and the limiting boss 12 are integrally arranged with the screw rod 10 and are made of hard plastic to ensure sufficient hardness and wear resistance and not to be easily deformed when the cover 2 abuts.

[0044] Please refer to Figures 3-4 In order to further enhance the structural strength of the suction cup 1, the reinforcing boss 11 is further provided with reinforcing ribs 13 on the periphery. The reinforcing ribs 13 are integrally arranged with the suction cup 1 and extend from the middle part to the outer periphery of the suction cup 1, effectively improving the overall rigidity and stability of the suction cup 1 and also improving its impact resistance and compression resistance.

[0045] In order to further optimize the adsorption effect of the suction cup 1, an annular protrusion 14 is further arranged at the end of the suction cup 1 in contact with the adsorbed surface. The annular protrusion 14 not only increases the negative pressure space between the suction cup 1 and the adsorbed surface, but also increases the pressure received by the suction cup 1, thereby improving the stability and reliability of the adsorption.

[0046] Please refer to Figures 2-5 On the inner side of the cover 2, a guide part 200 is further arranged for guiding the up and down movement of the reinforcing ribs 13. The guide part 200 is matched with the reinforcing ribs 13 in shape to limit the movement direction of the suction cup 1, avoiding the overall movement of the suction cup 1 during the rotation of the knob 3, so as to cause air leakage between the suction cup 1 and the adsorbed surface. The guide part 200 is provided with an outwardly inclined slope to facilitate the smooth movement of the reinforcing ribs 13 to the position corresponding to the guide part 200. This design not only ensures the stability of the suction cup 1 during movement, but also avoids the weakening of the adsorption force or the separation of the suction cup 1 from the adsorbed surface due to improper movement direction.

[0047] On the cover 2, designed with a screw rod 10 through the hole. The size of the hole is smaller than the limit boss 12, to ensure that when the screw rod 10 to move to a certain extent, the suction cup 1 up to the set position, the limit boss 12 will be with the bottom of the cover 2 abutment, so as to limit the further deformation of the suction cup 1, avoid and the suction surface between the separation due to air leakage. Cover 2 includes the inner compression wall 20 and outer compression wall 21, guide 200 is arranged on the inner compression wall 20, and is closely pressed on the suction cup 1. Increase the contact area with the suction cup 1, so that the compression is more stable, to increase the sealing between the suction cup 1 and the suction surface, the knob 3 is arranged above the cover 2, its outer compression part 30 is suitable for compression between the inner compression wall 20 and the outer compression wall 21, to stably compress the cover 2 on the suction cup 1, to avoid the outer compression wall 21 and the inner compression wall 20 of the cover 2 can't closely with the suction cup 1 abutment, to make the suction cup 1 and the suction surface between the leakage and cause separation. Cover 2 includes the inner compression wall 20 and outer compression wall 21, the inner compression wall 20 is arranged in a circular shape, and is spaced apart from the outer compression wall 21, so as to increase the contact area with the suction cup 1, which can make the suction cup 1 and the suction surface closely, avoid the suction cup 1 and the suction surface between the leakage and cause separation.

[0048] Please see Figure 6 , the knob 3 is arranged above the cover 2 and is threadedly connected with the screw rod 10 to compress the cover 2 on the outer peripheral edge of the suction cup 1, the knob 3 is provided with a connecting part 31 threadedly connected with the screw rod 10, the inner thread of the connecting part 31 is threadedly connected with the outer thread on the screw rod 10 to fix the suction cup 1 in the tensile deformation state, so as to avoid the suction cup 1 from returning to the initial state under the pressure of the air pressure, thereby ensuring the continuous and stable operation of the suspension device. The outer peripheral edge of the knob 3 is provided with a concave-convex structure to increase the friction force, so as to facilitate the user to rotate the knob 3. This design enables the user to more easily grasp and rotate the knob 3, thereby improving the operation convenience of the entire suspension device.

[0049] In use, the user first cleans the suction surface to ensure that there is no dust, oil stains and other impurities. Then, the suction cup 1 is aligned with the suction surface and is gently pressed to make the suction cup 1 closely adhere to the suction surface. Then, the knob 3 is rotated to drive the screw rod 10 to move upward, so that the negative pressure is formed in the suction cup 1, thereby closely adhering to the suction surface. When it is necessary to disassemble, the knob 3 is only needed to be reversely rotated to drive the screw rod 10 to move downward.

[0050] The negative pressure suction type suspension device of the present application not only has a simple structure and convenient operation, but also has strong suction capacity and high structural strength. It is suitable for various occasions requiring suspension or fixation. In addition, since the negative pressure suction principle is adopted, the suspension device will not cause any damage or destruction to the suction surface, and therefore has wide popularization and application value in practical application.

[0051] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by the person skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A negative pressure adsorption suspension device, comprising a suction cup, a pressure cap, a knob, and a screw, wherein one end of the screw is fixedly connected to the suction cup, and the other end is threadedly connected to the knob; rotating the knob drives the screw to move up and down, thereby causing the suction cup to adsorb or separate from the surface to be adsorbed, characterized in that... The screw and the suction cup have the following relationship: Reinforcing bosses used to strengthen the central structure of the suction cup; and A limiting boss is disposed on the reinforcing boss to limit the maximum upward displacement of the screw; The pressure cap has a through hole for the screw to pass through. The limiting boss is larger than the through hole. When the screw moves upward and causes the suction cup to arch upward to a set position, the limiting boss abuts against the pressure cap to limit the degree of deformation of the suction cup, thereby preventing air leakage and separation between the suction cup and the surface being suctioned.

2. The negative pressure adsorption suspension device according to claim 1, characterized in that, The reinforcing boss is provided with reinforcing ribs around its periphery, and the reinforcing ribs are integrally formed with the suction cup.

3. The negative pressure adsorption suspension device according to claim 2, characterized in that, The reinforcing ribs are configured to extend from the center of the suction cup to the outer periphery.

4. The negative pressure adsorption suspension device according to claim 1, characterized in that, The pressure cap is provided with a guide part, which is configured to guide the reinforcing rib to move up and down.

5. The negative pressure adsorption suspension device according to claim 4, characterized in that, The guide section is provided with an outwardly inclined slope to facilitate moving the reinforcing rib to a position corresponding to the guide section.

6. The negative pressure adsorption suspension device according to claim 1, characterized in that, The reinforcing boss and the limiting boss are both configured in a cylindrical shape and are on the same axis, with the diameter of the reinforcing boss being larger than the diameter of the limiting boss.

7. The negative pressure adsorption suspension device according to claim 1, characterized in that, The pressure cap includes an inner pressure wall and an outer pressure wall. The inner pressure wall is arranged in a circular shape and is spaced apart from the outer pressure wall.

8. The negative pressure adsorption suspension device according to claim 7, characterized in that, The knob is positioned above the pressure cap, and the outer pressing portion of the knob is adapted to press against the inner pressing wall and the outer pressing wall.

9. The negative pressure adsorption suspension device according to claim 1, characterized in that, The suction cup is provided with an annular protrusion, which is located at the end of the suction cup that contacts the surface to be adsorbed.

10. The negative pressure adsorption suspension device according to claim 1, characterized in that, The reinforcing boss and the limiting boss are integrally formed with the screw.

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