bench vice pump suction chuck

Abstract

The utility model discloses a bench vice pump suction chuck, at least includes: bench vice subassembly, it is used for clamping the workpiece of processing and has a columnar combination part, the chuck subassembly includes first cavity, second cavity and rubber base, first cavity is used for accommodating and fixing the columnar combination part, second cavity is integrally formed with first cavity, and vacuum pump, lithium cell and gas path subassembly are equipped in second cavity, rubber base has negative pressure space in and bottom rubber surface is contacted with outside smooth surface, is used for vacuum adsorption on the smooth surface after pumping, rubber base is fixed in the bottom of second cavity after closing. The utility model discloses the combination structure of bench vice subassembly and pump suction chuck, can firmly fix bench vice on the smooth surface, and the convenient use is made, through the cooperation of four -way air -exhaust needle and silica gel hose, makes the gas path layout more compact and reasonable.

Description

Technical Field

[0001] This utility model relates to the field of devices that can be adsorbed onto smooth surfaces using the principle of vacuum negative pressure, and in particular to a bench vise pump suction cup. Background Technology

[0002] A bench vise, also known as a vise, is a general-purpose clamping tool used to hold workpieces. It can be mounted on a workbench to securely hold machined workpieces and is an essential tool in a fitter's workshop. The structure of a bench vise generally consists of a vise body, a base, a guide nut, a lead screw, and jaws. The movable jaw slides along guide rails on the fixed jaw. The lead screw, mounted on the movable jaw, can rotate but cannot move axially and engages with a lead screw nut installed in the fixed jaw. Rotating the handle rotates the lead screw, causing the movable jaw to move axially relative to the fixed jaw, thus clamping or releasing the workpiece. Both the fixed and movable jaws are equipped with steel jaws secured with screws. The working surfaces of the jaws have a cross-hatched pattern to prevent slippage after clamping. Existing mechanical bench vises require fixing to the edge of a workpiece and cannot be used on smooth surfaces.

[0003] Adsorption devices utilizing the principle of vacuum negative pressure are widely used, such as tool suction cups. Currently, existing technologies employ a vacuum principle, designating the part of the handheld tool that contacts the wall as a suction cup. By evacuating the air from the space enclosed by the suction cup and the adsorption surface, the tool is directly adsorbed onto the wall. These tools require the air between the suction cup and the adsorption surface to be expelled during use, creating a negative pressure with the outside atmosphere to adhere the suction cup to the surface. Furthermore, it is crucial to maintain a constant vacuum within the suction cup. To maintain this vacuum effect, these suction cup tools typically require an air pump for evacuation, thus necessitating a power source to power the pump.

[0004] Chinese patent CN219078456U discloses a handheld electric suction cup, comprising: a connecting base, which is an open ring or a closed ring; a rubber suction cup installed below the connecting base; a first connecting vertical plate and a second connecting vertical plate, which are arranged opposite each other on both sides of the connecting base; a gripping part, which is arranged laterally between the first connecting vertical plate and the second connecting vertical plate; a power supply and a vacuum pump, which are arranged on the first connecting vertical plate; a middle plate, which is installed on the second connecting vertical plate, and has an air guide channel communicating with the interior of the rubber suction cup; a control switch, which is installed on the middle plate and electrically connected to the power supply and the vacuum pump; and a pressure relief mechanism, which is an air pipe installed on the middle plate and located in the gripping part, connecting the vacuum pump and the air guide channel. This type of solution belongs to a general suction cup tool and is not applied to bench vises.

[0005] Therefore, there is an urgent need for a bench vise pump suction cup that can not only fix the bench vise on a smooth surface for easy use, but also has a more compact and reasonable air passage layout inside the pump suction cup.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this utility model is to provide a bench vise pump suction cup. Through the combination structure of the bench vise assembly and the suction cup assembly, the bench vise can be firmly fixed on a smooth surface, making it convenient to use.

[0008] Another objective of this invention is to provide a bench vise pump suction cup, which, through the combined use of a four-way suction needle and a silicone hose, makes the air path layout more compact and reasonable.

[0009] To achieve the above objectives, this utility model provides a bench vise pump suction cup, comprising at least: a bench vise assembly for clamping a workpiece to be processed and having a columnar joint; a suction cup assembly comprising a first cavity, a second cavity, and a rubber base; the first cavity for accommodating and fixing the columnar joint; the second cavity being integrally formed with the first cavity, and the second cavity containing a vacuum pump, a lithium battery, and an air passage assembly; the rubber base having a negative pressure space and its bottom rubber surface in contact with a smooth external surface for vacuum adsorption on the smooth surface after pumping; and the rubber base being fixed to the bottom of the sealed second cavity.

[0010] Furthermore, in the above technical solution, the gas path assembly may include: a suction needle, which is configured as a four-way connector with one-way connector connected to the negative pressure space; four silicone hoses; one end of the first silicone hose is connected to the suction connector of the vacuum pump, and the other end is connected to a one-way check valve; one end of the second silicone hose is connected to the one-way check valve, and the other end is connected to the two-way connector of the suction needle; one end of the third silicone hose is connected to the vent valve, and the other end is connected to the three-way connector of the suction needle; one end of the fourth silicone hose is connected to the negative pressure sensor, and the other end is connected to the four-way connector of the suction needle.

[0011] Furthermore, in the above technical solution, the negative pressure sensor can be installed on the PCB board to monitor the vacuum state in the negative pressure space in real time.

[0012] Furthermore, in the above technical solution, both the PCB board and the vent valve can be located within the second cavity, with the vent valve connected to the PCB board via a control line. The lithium battery can be connected to the PCB board via a power line. The vacuum pump can be connected to the PCB board via both a power line and a control line.

[0013] Furthermore, in the above technical solution, a viewing window can be provided at the corresponding position above the PCB board; a working button is provided on one side of the viewing window, which can be used to control the power on by pressing and holding, to control the vacuum pump to start sucking air by clicking, and to control the venting valve to vent and shut down by double-clicking.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1) This utility model adopts a combination structure of bench vise assembly and suction cup assembly. Through the design of the columnar joint of the bench vise assembly, the columnar joint of the bench vise assembly can be inserted into the first cavity of the suction cup assembly and then locked and fixed, so that the bench vise pump suction cup of this utility model can be firmly fixed on the smooth surface and is convenient to use.

[0016] 2) The rubber base of this utility model can contact the smooth surface of the outside through the bottom rubber surface and be vacuum adsorbed on the smooth surface, making the fixing of the bench vise more convenient and quick, and the application scenarios more diversified.

[0017] 3) The present invention uses a combination of a four-way suction needle and a silicone hose to make the air path layout more compact and reasonable; the four-channel air path structure using a single suction needle can not only enable the vacuum pump to start pumping air and monitor the air pressure of the negative pressure space in real time, but also control the venting valve to release air and shut down the machine.

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, and to make the above and other objects, technical features and advantages of this utility model easier to understand, one or more preferred embodiments are listed below and described in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the appearance of the suction cup of the bench vise pump of this utility model.

[0020] Figure 2 This is a schematic diagram of the first three-dimensional structure of the suction plate of the bench vise pump of this utility model (the rubber base and the cover are in a disassembled state, showing the structure inside the second cavity).

[0021] Figure 3 This is a schematic diagram of the second three-dimensional structure of the suction cup of the bench vise pump of this utility model (the rubber base and cover are removed, and the lithium battery is not shown).

[0022] Figure 4 This is an exploded schematic diagram of the suction cup of the bench vise pump of this utility model.

[0023] Figure 5 yes Figure 1 A longitudinal sectional view.

[0024] Explanation of key figure labels:

[0025] 100 - Suction cup assembly, 101 - First cavity, 102 - Second cavity;

[0026] 1-Cap, 2-Plastic frame, 3-Evacuation needle, 301-One-way connector, 4-PCB board, 401-Negative pressure sensor, 5-Working button, 6-Transparent window, 7-Vent valve, 8-Silicone plug, 9-Second cavity powder-coated shell, 10-Fixing knob, 11-Rubber base, 12-Bench vise assembly, 121-Columnar joint, 13-One-way check valve, 14-Vacuum pump, 15-Lithium battery, 16-Phillips head screw with washer, 17-First silicone hose, 18-Second silicone hose, 19-Third silicone hose, 20-Fourth silicone hose, 21-Self-tapping screw, 22-Phillips head screw. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0028] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0029] In this document, for ease of description, spatial relative terms such as “below,” “under,” “down,” “above,” “above,” “upper,” etc., are used to describe the relationship of one element or feature to another element or feature in the accompanying drawings. It should be understood that spatial relative terms are intended to encompass different orientations of an object in use or operation, in addition to those depicted in the figures. For example, if an object in the figure is flipped, an element described as “below” or “under” another element or feature would be oriented “above” that element or feature. Thus, the exemplary term “below” can encompass both the downward and upward orientations. An object may also have other orientations (rotated 90 degrees or other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0030] In this document, the terms "first," "second," etc., are used to distinguish two different elements or parts, and are not used to define specific positions or relative relationships. In other words, in some embodiments, the terms "first," "second," etc., can also be used interchangeably.

[0031] like Figures 1 to 5As shown, this utility model provides a bench vise pump suction cup, comprising at least a bench vise assembly 12 and a suction cup assembly 100. The bench vise assembly 12 is used to clamp the workpiece to be processed (not shown in the figure) and has a columnar connecting part 121. Except for the columnar connecting part 121 used to connect with the suction cup assembly 100, the other structures of the bench vise assembly of this utility model are all prior art and will not be described in detail here. The suction cup assembly 100 includes a first cavity 101, a second cavity 102, and a rubber base 11. The first cavity 101 is used to accommodate and fix the columnar connecting part 121; the second cavity 102 is a shell structure (which can be constructed by a second cavity powder-coated shell 9), and the second cavity 102 is integrally formed with the first cavity 101. The second cavity 102 is provided with a vacuum pump 14, a lithium battery 15, and air circuit components, etc. The rubber base 11 has a negative pressure space inside and the bottom rubber surface is in contact with the smooth surface outside (not shown in the figure), which is used to vacuum adsorb onto the smooth surface after pumping; the rubber base 11 is fixed to the bottom of the closed second cavity 102.

[0032] This utility model adopts a combination structure of a bench vise assembly and a suction cup assembly. Through the design of the columnar joint 121 of the bench vise assembly, the columnar joint of the bench vise assembly can be inserted into the first cavity 101 of the suction cup assembly. The bench vise assembly and the suction cup assembly can be locked and fixed by the fixing knob 10, so that the bench vise pump suction cup of this utility model can be firmly fixed on the smooth surface, which is convenient for use. The rubber base 11 can be made of a metal frame with rubber material wrapped around the bottom. By creating a negative pressure space inside the rubber base 11, the bottom rubber surface can contact the external smooth surface and be vacuum adsorbed onto the smooth surface, making the fixing of the bench vise more convenient and quick.

[0033] Further as Figures 2 to 5 As shown, the gas path assembly of this utility model may include a suction needle 3 and silicone hoses. The suction needle 3 is a four-way connector, with one-way connector 301 connected to the negative pressure space within the aforementioned rubber base 11. There are four silicone hoses; one end of the first silicone hose 17 is connected to the suction connector of the vacuum pump 14, and the other end is connected to the one-way check valve 13; one end of the second silicone hose 18 is connected to the one-way check valve 13, and the other end is connected to the two-way connector of the suction needle 3 (see reference). Figure 5 The third silicone hose 19 is connected at one end to the vent valve 7 and at the other end to the tee connector of the suction needle 3 (see reference). Figure 5 The fourth silicone tubing 20 is connected at one end to the negative pressure sensor 401 and at the other end to the four-way connector of the suction needle 3 (see reference). Figure 5The negative pressure sensor 401 is mounted on the PCB board 4 to monitor the vacuum status within the negative pressure space of the rubber base 11 in real time. This invention utilizes a four-way suction needle and a silicone hose, resulting in a more compact and rational air path layout. The four-channel air path structure using a single suction needle not only enables the vacuum pump to start pumping air and monitor the air pressure in the negative pressure space in real time, but also controls the venting valve to release air and shut down the system.

[0034] Further as Figure 2 , 3 As shown in Figure 4, both the PCB board 4 and the vent valve 7 of this invention are located within the second cavity 102. The vent valve 7 can be connected to the PCB board 4 via a control line. The lithium battery 15 can be connected to the PCB board 4 via a power line. The vacuum pump 14 can be connected to the PCB board via both a power line and a control line. The vacuum pump, lithium battery, vent valve, suction needle, and tubing of this invention can be arranged using the plastic frame 2. A viewing window 6 is provided at a corresponding position above the PCB board 4; a working button 5 is provided on one side of the viewing window 6, used for long-pressing to control power-on, single-clicking to control vacuum pump 14 to start suction, and double-clicking to control vent valve 7 to release air and shut down.

[0035] The working process of the assembled bench vise pump suction cup of this utility model is as follows:

[0036] Press and hold the power button 5 to turn on the device. At this time, the display shows that the suction cup suction pressure is zero and the red light is on. Click the power button to start the vacuum pump 14 to draw air. During this process, the negative pressure value (i.e., vacuum degree) in the negative pressure space of the suction cup rubber base 11 is measured in real time. Since this utility model uses a four-way suction needle 3, this negative pressure value can be measured by the negative pressure sensor connected to one of the channels (i.e., the four-way). When the negative pressure value is higher than the set value, the PCB board 4 controls the vacuum pump 14 to stop drawing air and displays the suction cup negative pressure value at this time. The red light turns green and the light stays on. If air leakage occurs during the use of the suction cup... In the case where the aforementioned negative pressure value in the suction cup is lower than the minimum value set, a red light is displayed and the PCB board 4 controls the vacuum pump 14 to restart until the negative pressure value reaches the maximum value set, at which point suction stops, the red light turns green and stays on, and this process repeats; when the bench vise pump suction cup of this utility model is finished being used and needs to be removed from the smooth surface, double-click the working button 5, and the vent valve 7 is controlled by the PCB board 4 to release air. Since the vent valve 7 is connected to one of the channels (i.e., the three-way valve) of the four-way suction needle 3, the air pressure in the negative pressure space of the rubber base can be restored to atmospheric pressure.

[0037] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. Any simple modifications, equivalent changes, and alterations made to the foregoing exemplary embodiments should fall within the protection scope of the present invention.

Claims

1. A pump chuck for a bench vise, characterized in that, include: A bench vise assembly for clamping a workpiece to be processed and having a columnar joint. The suction cup assembly includes a first cavity, a second cavity, and a rubber base; the first cavity is used to accommodate and fix the columnar joint; the second cavity is integrally formed with the first cavity, and a vacuum pump, a lithium battery, and an air circuit assembly are provided in the second cavity; the rubber base has a negative pressure space and the bottom rubber surface is in contact with the external smooth surface, for vacuum adsorption on the smooth surface after pumping. The rubber base is fixed to the bottom of the sealed second cavity.

2. The bench vice pump cup as claimed in claim 1, wherein, The gas path assembly includes: The suction needle is configured with four ports, and one port is connected to the negative pressure space. The system comprises four silicone hoses: one end of the first silicone hose is connected to the vacuum pump's suction connector, and the other end is connected to a one-way check valve; one end of the second silicone hose is connected to the one-way check valve, and the other end is connected to the two-way connector of the suction needle; one end of the third silicone hose is connected to the vent valve, and the other end is connected to the three-way connector of the suction needle; and one end of the fourth silicone hose is connected to the negative pressure sensor, and the other end is connected to the four-way connector of the suction needle.

3. The bench vise pump suction plate according to claim 2, characterized in that, The negative pressure sensor is mounted on the PCB board and is used to monitor the vacuum state in the negative pressure space in real time.

4. The bench vice pump cup as claimed in claim 3, wherein, Both the PCB board and the vent valve are located inside the second cavity, and the vent valve is connected to the PCB board via a control line.

5. The bench vise pump suction plate according to claim 3, characterized in that, The lithium battery is connected to the PCB board via a power cord.

6. The bench vise pump suction plate according to claim 3, characterized in that, The vacuum pump is connected to the PCB board via power and control lines.

7. The suction plate of the bench vise pump according to claim 3, characterized in that, A viewing window is provided at the corresponding position above the PCB board; a working button is provided on one side of the viewing window, which is used to control the power on by pressing and holding, to control the vacuum pump to start sucking air by clicking, and to control the venting valve to release air and shut down by clicking.

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