Suction cup framework for vacuum suction cup and vacuum suction cup

Abstract

The utility model discloses a suction cup framework for a vacuum suction cup, which comprises a framework body (1) used for being detachably connected with a suction cup rubber sheet, a mounting plane (2) is formed at the bottom of the framework body (1), and the mounting plane (2) is used for being mutually attached to the inner wall of the suction cup rubber sheet; a plurality of grooves (3) are distributed in the mounting plane (2) at intervals, and the grooves (3) are used for being attached to a suction cup rubber sheet and increasing friction resistance between the suction cup rubber sheet and the mounting plane (2). According to the utility model, the connection stability between the sucker rubber and the skeleton can be improved.

Description

Technical Field

[0001] The utility model relates to a vacuum sucker, in particular to a sucker framework for a vacuum sucker and a vacuum sucker. Background Art

[0002] A vacuum sucker mainly consists of a framework, a handle and an air extraction pump. An air extraction cavity for extracting vacuum is formed at the bottom of the framework. The inner side of the air extraction cavity is communicated with the air extraction pump through an air extraction and release channel. During use, the vacuum sucker is manually placed on an object, and the periphery of the framework is completely attached to the surface of the object. Then, the air extraction pump is turned on to extract air from the cavity area, so that the framework and the object are fixed to each other under a negative pressure state, facilitating the displacement of workers. On this basis, in order to ensure the sealing performance of the cavity area during vacuum extraction, the manufacturer also installs rubber on the framework around the cavity, that is, the rubber is used to contact the surface of the object to form a seal, thereby avoiding air leakage problems caused by gaps at the joints.

[0003] In a traditional vacuum sucker, the rubber is fixed at the bottom of the framework to prevent the separation between the rubber and the framework. However, the defect of this structure is that since the rubber needs to be made of a flexible material, its service life is relatively short, and it is easy to be damaged by the collision of sharp objects during use, thereby affecting the overall adsorption effect of the vacuum sucker. In view of this technical defect, at present, some manufacturers have developed a new type of vacuum sucker. By wrapping the rubber outside the framework and buckling them together, users can replace the rubber separately in the later stage, thereby reducing the replacement part cost and prolonging the service life of the vacuum sucker. However, the buckling connection method will reduce the connection stability of the rubber on the framework, that is, the rubber is easy to shift, curl or peel off relative to the framework under the action of external force, thereby affecting the adsorption effect of the vacuum sucker.

[0004] Therefore, the existing method of buckling and connecting the rubber and the framework will reduce the connection stability of the rubber on the framework. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a sucker framework for a vacuum sucker and a vacuum sucker. It can improve the connection stability between the sucker rubber and the framework.

[0006] The technical solution of the utility model: A sucker framework for a vacuum sucker includes a framework body for detachably connecting a sucker rubber. An installation plane is formed at the bottom of the framework body, and the installation plane is used to fit with the inner wall of the sucker rubber. A plurality of grooves are distributed at intervals on the installation plane, and the grooves are used to fit with the sucker rubber and increase the frictional resistance between the sucker rubber and the installation plane.

[0007] In the above-mentioned suction cup frame for a vacuum suction cup, an air extraction cavity for the vacuum suction cup to suck is formed outside the installation plane. An air passage groove is provided on the installation plane. An air inlet is provided at one end of the air passage groove, and an air outlet is provided at the other end of the air passage groove. The air in the air extraction cavity enters from the air inlet under the suction action and sequentially passes through the air passage groove and the air outlet and is discharged outward. The air passage groove between the air inlet and the air outlet is communicated with all or part of the grooves.

[0008] In the above-mentioned suction cup frame for a vacuum suction cup, the outer shape of the installation plane is circular or oval, the grooves are annularly distributed along the circumferential direction of the installation plane, and multiple grooves are distributed at intervals inside and outside along the radial direction of the installation plane.

[0009] In the above-mentioned suction cup frame for a vacuum suction cup, a buckling portion for buckling and connecting the suction cup rubber is formed around the skeleton body.

[0010] A vacuum suction cup, which includes the above-mentioned suction cup frame for a vacuum suction cup.

[0011] In the above-mentioned vacuum suction cup, a handle is detachably connected to the side of the skeleton body away from the installation plane, a suction pump is detachably connected to the handle, the suction pump is communicated with the air outlet, the outside of the skeleton body is buckled and connected with a suction cup rubber through the buckling portion, the outer end of the suction cup rubber is wrapped outside the skeleton body through the buckling portion, the inner end of the suction cup rubber passes through the groove and forms an air hole, and the air inlet is communicated with the air hole.

[0012] In the above-mentioned vacuum suction cup, the upper end of the suction cup rubber is wrapped outside the buckling portion through a flanging and is buckled with the buckling portion, and the lower end of the rubber extends below the installation plane through a lip and forms an air extraction cavity.

[0013] In the above-mentioned vacuum suction cup, the buckling portion includes a buckling plate provided at the peripheral edge of the installation plane, a lapping edge is provided on the skeleton body inside the buckling plate, the middle of the flanging is buckled and connected with the buckling plate through a buckling groove, and the inner side of the flanging extends to the inner end of the buckling plate and is mutually attached to the outer wall of the lapping edge.

[0014] In the above-mentioned vacuum suction cup, the lapping edge forms a tapered surface that is narrow at the top and wide at the bottom at the joint with the flanging, and the inner wall of the flanging is completely attached to the tapered surface after installation.

[0015] Compared with the prior art, the present utility model has the following characteristics:

[0016] (1) By providing the grooves on the installation plane, the present utility model can improve the frictional resistance between the installation plane and the suction cup rubber after mutual attachment, thereby reducing the offset of the suction cup rubber relative to the skeleton body under the action of external force and improving the connection stability between the suction cup rubber and the skeleton.

[0017] (2) By connecting the air vent groove and the groove to communicate with each other, when the vacuum suction cup sucks, the air in the corresponding groove can be evacuated through the air groove, so that the suction cup rubber outside the groove is tightly adsorbed on the installation plane under the action of negative pressure, further improving the connection stability between the rubber and the skeleton when the vacuum suction cup evacuates air;

[0018] (3) By defining the fastening structure between the suction cup rubber and the skeleton body, a labyrinth groove structure can also be formed at the four peripheral edges of the suction cup rubber by using the structural cooperation of the flange and the groove buckle, thereby further improving the connection stability and sealing effect between the suction cup rubber and the skeleton body; on this basis, by making the flange and the flanging fit with each other through a conical surface, the four peripheral edges of the vacuum suction cup need to expand outward along the conical surface during peeling, that is, further increasing the disassembly difficulty of the vacuum suction cup, thereby reducing the possibility of accidental detachment of the vacuum suction cup;

[0019] Therefore, the utility model can improve the connection stability between the suction cup rubber and the skeleton. Description of the Drawings

[0020] Figure 1 is the external view of Embodiment 1;

[0021] Figure 2 is the cross-sectional view of Embodiment 1;

[0022] Figure 3 is the external view of Embodiment 2;

[0023] Figure 4 is the connection schematic diagram of the skeleton body and the suction cup rubber at the edge in Embodiment 2.

[0024] The marks in the drawings are: 1 - skeleton body, 2 - installation plane, 3 - groove, 4 - air extraction cavity, 5 - air vent groove, 6 - air inlet, 7 - air outlet, 8 - fastening part, 9 - handle, 10 - air extraction pump, 11 - suction cup rubber, 12 - flanging, 13 - lip, 801 - buckle plate, 802 - flange, 803 - conical surface, 121 - buckle groove. Detailed Embodiment

[0025] The following further describes the present utility model in conjunction with the drawings and embodiments, but it is not used as a basis for limiting the present utility model.

[0026] Embodiment 1. A suction cup skeleton for a vacuum suction cup, the structure is as shown in Figure 1 and 2 shown, including a skeleton body 1 for detachably connecting the suction cup rubber, the bottom of the skeleton body 1 forms an installation plane 2, and the installation plane 2 is used to fit with the inner wall of the suction cup rubber; a plurality of grooves 3 are spacedly distributed on the installation plane 2, and the grooves 3 are used to fit with the suction cup rubber and increase the frictional resistance between the suction cup rubber and the installation plane 2.

[0027] An air extraction cavity 4 for vacuum suction cup to suck is formed outside the installation plane 2. An air passing groove 5 is provided on the installation plane 2. An air inlet 6 is provided at one end of the air passing groove 5, and an air outlet 7 is provided at the other end of the air passing groove 5. The air in the air extraction cavity 4 enters from the air inlet 6 under the suction action and sequentially passes through the air passing groove 5 and the air outlet 7 and is discharged outwards. The air passing groove 5 between the air inlet 6 and the air outlet 7 is communicated with all or part of the grooves 3.

[0028] A counterbore for bolt connection with the suction cup handle is also provided at the bottom of the skeleton body 1. The counterbore is separated from the air passing groove 5, and after the skeleton body 1 and the suction cup handle are bolt-connected, the position of the counterbore is sealed.

[0029] The outer shape of the installation plane 2 is circular or elliptical. The grooves 3 are annularly distributed along the circumferential direction of the installation plane 2, and multiple grooves 3 are distributed at intervals inside and outside along the radial direction of the installation plane 2.

[0030] A buckling part 8 for buckling and connecting the suction cup rubber is formed around the skeleton body 1.

[0031] In the use of this embodiment, the periphery of the suction cup rubber is sleeved outside the skeleton body 1 through the buckling part 8 to form a seal, and the inner side of the suction cup rubber extends to the middle of the installation plane 2 and fits with the surface of the installation plane 2. On this basis, when the vacuum suction cup is in use, the suction pump on the vacuum suction cup sucks the air in the air extraction cavity 4 through the air passing groove 5, so that the air in the air extraction cavity 4 is sequentially discharged outwards along the air inlet 6, the air passing groove 5 and the air outlet 7. Under this suction action, the air in the grooves 3 communicated with the air passing groove 5 will also be sucked out, so that the suction cup rubber 11 outside the grooves 3 is tightly attached to the installation plane 2 under the negative pressure action, so as to realize the limiting function and effectively prevent the mutual offset or peeling of the skeleton body 1 and the suction cup rubber when the vacuum suction cup is in the adsorption state.

[0032] Embodiment 2. The vacuum suction cup is configured as shown in Figure 3 and 4 It includes the suction cup skeleton for the vacuum suction cup in Embodiment 1. A handle 9 is detachably connected to the side of the skeleton body 1 of the suction cup skeleton for the vacuum suction cup away from the installation plane 2. A suction pump 10 is detachably connected to the handle 9. The suction pump 10 and the air outlet 7 are communicated with each other through an air extraction and discharge channel arranged in the handle 9. The outside of the skeleton body 1 is buckled and connected with a suction cup rubber 11 through a buckling part 8. The outer end of the suction cup rubber 11 is wrapped outside the skeleton body 1 through the buckling part 8. The inner end of the suction cup rubber 11 passes through the groove 3 and forms an air hole, and the air inlet 6 is communicated with the air hole.

[0033] The upper end of the sucker rubber 11 is wrapped outside the buckling part 8 through a flanging 12 and buckles with the buckling part 8, and the lower end of the rubber extends below the installation plane 2 through a lip 13 to form an air extraction cavity 4.

[0034] The buckling part 8 includes a buckling plate 801 arranged at the four peripheral edges of the installation plane 2, and a lapping edge 802 is arranged on the skeleton body 1 inside the buckling plate 801. The middle part of the flanging 12 is buckled and connected to the buckling plate 801 through the lapping edge 121, and the inner side of the flanging 12 extends to the inner end of the buckling plate 801 and fits with the outer wall of the lapping edge 802.

[0035] The lapping edge 802 forms a tapered surface 803 that is narrow at the top and wide at the bottom at the joint with the flanging 12, and the inner wall of the flanging 12 completely fits with the tapered surface 803 after installation.

[0036] On the basis of Embodiment 1, this embodiment further defines the installation and application of the sucker skeleton in the vacuum sucker. By buckling the four sides of the skeleton body 1 with the buckling part 8 and the sucker rubber 11, and the inner side of the sucker rubber 11 extends to the middle of the installation plane 2 to form air holes communicating with the air inlet 6, the air in the air extraction cavity 4 and the groove 3 can be discharged outward along the air passing groove 5 under the suction effect, realizing the suction and limiting effects. On this basis, through the structural cooperation of the buckling plate 801 and the lapping edge 121, a labyrinth groove structure is formed after the skeleton body 1 and the sucker rubber 11 are buckled around, improving the connection stability and sealing performance between the skeleton body 1 and the sucker rubber 11. By making the lapping edge 802 and the flanging 12 fit with each other through the tapered surface 803, the sucker rubber 11 needs to open outward along the tapered surface 803 when being peeled off, that is, the peeling difficulty of the sucker rubber 11 is increased, and the possibility of the sucker rubber 11 falling off the skeleton body 1 in a non-manual state is reduced.

Claims

1. A suction cup skeleton for a vacuum suction cup, characterized in that: It includes a skeleton body (1) for detachably connecting a suction cup rubber sheet. An installation plane (2) is formed at the bottom of the skeleton body (1), and the installation plane (2) is used to fit with the inner wall of the suction cup rubber sheet; multiple grooves (3) are distributed at intervals on the installation plane (2), and the grooves (3) are used to fit with the suction cup rubber sheet and increase the frictional resistance between the suction cup rubber sheet and the installation plane (2).

2. The suction cup skeleton for a vacuum suction cup according to claim 1, wherein: An air extraction cavity (4) for vacuum suction by the vacuum suction cup is formed outside the installation plane (2). An air passage groove (5) is provided on the installation plane (2). An air inlet (6) is provided at one end of the air passage groove (5), and an air outlet (7) is provided at the other end of the air passage groove (5). The air in the air extraction cavity (4) enters from the air inlet (6) under the suction action and sequentially passes through the air passage groove (5) and the air outlet (7) and is discharged outward. The air passage groove (5) between the air inlet (6) and the air outlet (7) is communicated with all or part of the grooves (3).

3. The suction cup skeleton for a vacuum suction cup according to claim 1, characterized in that: The outer shape of the installation plane (2) is circular or elliptical, and the grooves (3) are annularly distributed along the circumferential direction of the installation plane (2), and multiple grooves (3) are distributed at intervals inside and outside along the radial direction of the installation plane (2).

4. The suction cup skeleton for a vacuum suction cup according to claim 1, characterized in that: A fastening portion (8) for fastening and connecting the suction cup rubber sheet is formed around the skeleton body (1).

5. Vacuum suction cup, characterized in that: This vacuum suction cup includes a suction cup skeleton for a vacuum suction cup as described in any one of claims 1-4.

6. The vacuum suction cup according to claim 5, characterized in that: A handle (9) is detachably connected to the side of the skeleton body (1) away from the installation plane (2). An air extraction pump (10) is detachably connected to the handle (9). The air extraction pump (10) is communicated with the air outlet (7). The outer side of the skeleton body (1) is fastened and connected with a suction cup rubber sheet (11) through the fastening portion (8). The outer end of the suction cup rubber sheet (11) is wrapped outside the skeleton body (1) through the fastening portion (8). The inner end of the suction cup rubber sheet (11) passes through the groove (3) and forms an air hole, and the air inlet (6) is communicated with the air hole.

7. The vacuum suction cup according to claim 6, characterized in that: The upper end of the suction cup rubber sheet (11) is wrapped outside the fastening portion (8) through a flanging (12) and is fastened with the fastening portion (8). The lower end of the rubber sheet extends below the installation plane (2) through a lip (13) and forms an air extraction cavity (4).

8. The vacuum suction cup according to claim 7, characterized in that: The fastening portion (8) includes a fastening plate (801) provided at the peripheral edge of the installation plane (2). A lapping edge (802) is provided on the skeleton body (1) inside the fastening plate (801). The middle part of the flanging (12) is fastened and connected with the fastening plate (801) through a fastening groove (121). The inner side of the flanging (12) extends to the inner end of the fastening plate (801) and fits with the outer wall of the lapping edge (802).

9. The vacuum suction cup according to claim 8, characterized in that: The lapping edge (802) forms a tapered surface (803) that is narrow at the top and wide at the bottom at the joint with the flanging (12), and the inner wall of the flanging (12) completely fits with the tapered surface (803) after installation.

Images