Knife rest

Abstract

The tool rest comprises a supporting body, a suction cup and a driving piece, the supporting body is provided with a positioning part for fixing a tool, and a cavity for containing a tool body is formed in the supporting body; the suction cup is arranged at the bottom of the supporting body, the suction cup is provided with a connecting part and a deformable suction part, and the suction part can be adsorbed and fixed to a supporting object through deformation; the driving part is in transmission connection with the connecting part and used for driving the suction part to be adsorbed and fixed to a supporting object or driving the suction part and the supporting object to be released from adsorption, it can be guaranteed that the tool rest is stable and does not topple, the position of the tool rest can be conveniently adjusted according to needs, and use is convenient.

Description

Technical Field

[0001] This application relates to the technical field of daily necessities, specifically a knife holder. Background Technology

[0002] Knife holders are used in kitchens to store knives. To save space, they often have suction cups on the sides to attach to the wall. However, if the suction cups fail, the knife holder could fall and pose a significant safety hazard. Vertical knife holders, placed on a flat surface, have suction cups at the bottom to prevent tipping. To secure them, pressing down on the holder forces air out of the suction cups, creating adhesion. However, moving the holder and releasing the suction is cumbersome, requiring repeated twisting while applying upward force. Utility Model Content

[0003] This application provides a knife holder that is easy to use.

[0004] This application provides a tool holder, including:

[0005] The support body has a positioning part for fixing the tool and an internal cavity for accommodating the tool body;

[0006] A suction cup is disposed at the bottom of the support body. The suction cup has a connecting part and a deformable suction part. The suction part can be adsorbed and fixed on the support by deformation.

[0007] The driving component, which is kinetically connected to the connecting part, is used to drive the suction part to adhere to and fix itself on the support, or to drive the suction part and the support to release from adhesion. Operating the driving component to actively drive the suction cup to adhere to and fix itself on the support, or to release the adhesion between the suction cup and the support, ensures the tool holder is stable and does not tip over, and allows for convenient adjustment of the tool holder position as needed.

[0008] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0009] Knife holders are typically placed on kitchen countertops and frequently come into contact with oil and water. Over time, they accumulate grease and grime. The complex internal structure of the drive mechanism makes it difficult to clean and prone to grease buildup, causing discomfort. Optionally, the support body includes a base and an upper housing. The suction part is located below the base, the connecting part passes through the base and is movable relative to it, the drive mechanism is located above the base, and the positioning part is located in the upper housing. The drive mechanism and the suction part are situated on the upper and lower sides of the base, respectively. The drive mechanism and the connecting part are connected by a transmission mechanism, thus connecting the suction cup and the support body. Placing the drive mechanism inside the support body offers the following advantages:

[0010] 1. Prevent the drive components from coming into contact with oil and water, thereby preventing mold or dirt, eliminating the user's desire to clean, and thus reducing the user's housework burden;

[0011] 2. The drive components are less prone to contamination from contact with oil and water, thus extending their service life;

[0012] 3. The drive components are too numerous and complex. Hiding the drive components inside the support body gives it a simple and aesthetically pleasing look.

[0013] 4. Lower cost.

[0014] Optionally, the base and the upper housing are connected separately. During assembly, the components from bottom to top are suction cup, base, drive unit and upper housing, which facilitates assembly.

[0015] Optionally, the blade holder includes a water collection tray movably mounted on the base, and a cover covering the base and the drive unit. The cover and the upper housing form the chamber and are provided with a funnel structure. The bottom of the funnel structure has a water outlet corresponding to the water collection tray, which can collect water remaining on the blade. The cover is fitted to the drive unit, resulting in a partial upward convexity, meaning the upper surface of the cover is not smooth. The funnel structure prevents water from accumulating on the cover, thereby concentrating water on the blade into the water collection tray. This helps keep the cavity containing the blade dry and clean, preventing mold growth in the cavity, making it more hygienic and safe, while also reducing the volume of the water collection tray. The funnel structure also includes rounded corners on the upward convex portion of the cover and rounded arcs on the straight portion, making water flow smoother.

[0016] Limited kitchen space necessitates a reduced knife holder height for ease of use. Optionally, the water collection tray and drive unit are arranged opposite each other to maximize space utilization, lower the knife holder height, and facilitate knife access. Alternatively, the upper housing rotates relative to the base around a vertical axis. The drive unit is connected to the upper housing and threadedly connected to the connecting part. Rotation of the upper housing along a fifth direction drives the connecting part upward, causing the suction part to adhere to the support. Rotation of the upper housing along a sixth direction drives the connecting part downward, causing the suction part to deform and release from the support. The fifth and sixth directions are opposite. Rotating the upper housing switches the knife holder's suction state, resulting in a more novel operation and a cleaner, more streamlined appearance without any noticeably protruding operating parts.

[0017] Optionally, the upper housing rotates relative to the base about a vertical axis, the driving member and the connecting part are threadedly connected, the upper housing includes an upper part and a lower part, the upper part has the positioning part and extends beyond the lower part to connect with the base, and the lower part is connected to the driving member and rotates with the upper part;

[0018] The lower part rotates along the fifth direction, driving the connecting part to move upward, and the suction part is attracted and fixed to the support. The lower part rotates along the sixth direction, driving the connecting part to move downward, and the suction part deforms and resets, releasing its attraction to the support. The fifth and sixth directions are opposite. The rotation of the lower part realizes the adsorption state of the tool holder on the support, while the upper part remains stationary to avoid changing the position of the tool holder, making it convenient to use. It also has the advantages of novel operation and a simpler appearance of the tool holder.

[0019] Optionally, the driving component includes a rotating shaft that rotatably engages with the support body about a first horizontal axis, and an operating part connected to one end of the rotating shaft and extending out of the support body. The other end of the rotating shaft has a cam structure adapted to the connecting part. When the rotating shaft rotates in a first direction, the cam structure drives the connecting part to move upward, causing the suction part to adhere and fix to the support. When the rotating shaft rotates in a second direction, the cam structure drives the connecting part to move downward, causing the suction part to release from the support. The first and second directions are opposite. The operating part extends out of the support body, which is convenient to use and has visibility. The cam structure has a better driving effect and can be integrally machined with the rotating shaft.

[0020] Optionally, the driving member includes a transmission part that rotates with the connecting part about a second horizontal axis, and an operating part connected to the transmission part and extending out of the support body. The transmission part has a cam surface. The driving member rotates relative to the connecting part in a third direction. The cam surface abuts against the support body and causes the connecting part to move upward. The suction part is attracted and fixed to the support. The driving member rotates in a fourth direction, the cam surface disengages from the support body, the suction part deforms and resets, and releases its attraction to the support. The third direction is opposite to the fourth direction. The operating part extends out of the support body, which is convenient to use and has visibility. Utilizing the lever principle, the operation is more labor-saving.

[0021] Optionally, the driving component includes a driving part that rotates and engages with the connecting part about a vertical axis, and an operating part that connects to the driving part and extends to the support body. The driving part has a first inclined surface, and the two sides of the first inclined surface have a first high position and a first low position. The connecting part is a columnar structure and has a first positioning pin that radially protrudes and engages with the first inclined surface.

[0022] The driving component rotates along the fifth direction, the first inclined surface acts on the first positioning pin to drive the connecting part to move upward and the first positioning pin stops at the first high position, the suction part is attracted and fixed to the support, the driving component rotates along the sixth direction, the first high position and the first positioning pin are misaligned, the suction part deforms and resets and releases the attraction with the support, the fifth direction and the sixth direction are opposite, the operating part extends out of the support body, which is convenient to use and has visibility.

[0023] Optionally, the driving member is slidably mounted on the support body in the horizontal direction. One end of the driving member has a second inclined surface, and the other end extends out of the support body to serve as an operating part. The second inclined surface has a second high position and a second low position. The connecting part is a columnar structure and has a second positioning pin that cooperates with the second inclined surface in a radial direction.

[0024] The driving component slides along the seventh direction, the second inclined surface acts on the second positioning pin to drive the connecting part to move and the second positioning pin stops at the second high position, the suction part is attracted and fixed to the support, the driving component slides along the eighth direction, the second high position and the second positioning pin are misaligned, the suction part deforms and resets and releases the attraction with the support, the seventh direction and the eighth direction are opposite, the operating part extends out of the support body, which is convenient to use and has visibility, and the sliding installation method is easier to apply force than the rotating installation method.

[0025] Optionally, the tool holder includes an elastic reset member that acts on the suction part to drive the suction part to deform and reset, which can assist and accelerate the deformation and reset of the suction part, so that the tool holder can quickly release the adhesion between itself and the support, making it easy to adjust the position of the tool holder immediately.

[0026] The tool holder of this application has an operating drive component that actively drives the suction cup to adhere to and fix it to the support, or releases the suction cup from the support, which can ensure that the tool holder is stable and does not tip over, and allows for convenient adjustment of the tool holder position as needed. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the tool holder after mounting the tool according to an embodiment of this application;

[0028] Figure 2 This is a top view of a tool holder according to an embodiment of this application;

[0029] Figure 3 for Figure 1 Exploded view of the central knife holder;

[0030] Figure 4 for Figure 2 Partial sectional view of the tool holder along the AA direction;

[0031] Figure 5 for Figure 4 Partial cross-sectional view in the BB direction (the suction part is released from the support);

[0032] Figure 6 for Figure 4 Partial cross-sectional view in the BB direction (the suction part is attached to the support);

[0033] Figure 7This is a partial cross-sectional view of the tool holder according to another embodiment of this application;

[0034] Figure 8 This is a partial cross-sectional view of the tool holder according to another embodiment of this application (the suction part is released from the support);

[0035] Figure 9 For this application Figure 8 A partial cross-sectional view of the tool holder being attached and fixed to the support.

[0036] Figure 10 A partial half-sectional view of the tool holder according to another embodiment of this application (the suction part is released from the support);

[0037] Figure 11 for Figure 10 A partial half-section view of the tool holder being attached and fixed to the support.

[0038] Figure 12 This is a partial half-sectional view of the tool holder according to another embodiment of this application (the suction part is released from the support);

[0039] Figure 13 for Figure 12 A partial half-section view of the tool holder's suction part being attached and fixed to the support.

[0040] The annotations in the figure are explained as follows:

[0041] 100. Support body; 110. Positioning part; 120. Chamber; 130. Base; 131. Abutment part; 140. Upper shell; 150. Water collection tray; 160. Cover; 161. Water outlet;

[0042] 200, suction cup; 210, connecting part; 211, first positioning pin; 212, second positioning pin; 220, suction part;

[0043] 300, drive component; 310, rotating shaft; 311, cam structure; 320, operating part; 330, transmission part; 331, cam surface; 340, drive part; 341, first inclined surface; 342, first high position; 343, first low position; 350, second inclined surface; 351, second high position; 352, second low position. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] See Figures 1-4 A tool holder is provided for storing tools, each tool having a handle and a blade. The tool holder includes a support body 100, a suction cup 200, and a drive unit 300. The support body 100 has a positioning part 110 on its top for fixing the tool, and an internal chamber 120 for accommodating the blade. After the tool is inserted through the positioning part 110, the blade extends into the chamber 120, and the handle abuts against the support body 100. The positioning part 110 can be a slot formed on the surface of the support body 100, allowing the blade to pass through but restricting the passage of the handle. Preferably, the positioning part 110 includes a side wall extending from the slot opening into the chamber 120, the side wall cooperating with the blade, for example, with a clearance fit, to restrict the tool and reduce tool wobble. The slot opening is formed on the side of the support body 100, and / or the top surface as shown in the figure.

[0049] A suction cup 200 is disposed at the bottom of the support 100. The suction cup 200 has a connecting portion 210 and a deformable suction portion 220. The suction portion 220 is deformed to adhere and fix itself to the support, such as a horizontal tabletop made of materials such as wood, slab, quartz, or stainless steel. The connecting portion 210 and the suction portion 220 are separately fixedly connected. For example, the connecting portion 210 is made of a rigid material and is embedded in the suction portion 220. In the figure, the connecting portion 210 is located in the middle of the suction portion 220. In some embodiments, there are one or more suction cups 200. When there are multiple suction cups 200, the connecting portions 210 are driven and move synchronously. In this embodiment, there is one suction cup 200, and the vertical projection area of ​​the suction portion 220 is 0.5 to 1.5 times the area of ​​the support 100.

[0050] The driving component 300 is connected to the connecting part 210 for driving the suction part 220 to deform, thereby creating a cavity with negative pressure between it and the support. This allows the tool holder to be attracted and fixed to the support by the suction part 220, or it can drive the suction part 220 to deform and reset, reducing or eliminating the pressure difference between the cavity and atmospheric pressure. This releases the suction part 220 from the support, making it easier to adjust the position of the tool holder after it is removed from the support.

[0051] Therefore, in this application, the operating drive unit 300 drives the suction cup 200 to adhere to and fix it to the support, or releases the suction cup 200 from the support, which can ensure that the tool holder is stable and does not tip over, and the position of the tool holder can be easily adjusted as needed.

[0052] like Figures 3-6 In one embodiment, the drive member 300 is movably disposed on the support body 100. For ease of assembly, the support body 100 includes a base 130 and an upper housing 140, with a positioning part 110 disposed on the upper housing 140. The suction part 220 is disposed below the base 130, and the base 130 has an abutment part 131 abutting against the back of the suction part 220. The abutment part 131 is disposed near the edge of the suction part 220, so that the edge of the suction part 220 is tightly attached to the support, preventing air from entering the cavity when the middle of the suction part 220 bulges with the connecting part and forms a negative pressure.

[0053] The connecting part 210 passes through the base 130 and is movable relative to the base 130, for example, sliding vertically up and down. The driving component 300 is arranged above the base 130. The base 130 and the upper housing 140 are separately connected. During assembly, the suction cup 200 is assembled with the base 130 from bottom to top, and then the driving component 300 is connected to the connecting part 210, thus completing the connection between the suction cup 200 and the base 130. Finally, the upper housing 140 is installed, making assembly more convenient.

[0054] After use and cleaning, the knife blade may contain water, such as... Figure 3 and Figure 4As shown, in one embodiment, the tool holder includes a cover 160 and a water collection tray 150 movably disposed on the base 130. In the figure, the water collection tray 150 slides horizontally. Furthermore, the water collection tray 150 and the drive member 300 are staggered in the circumferential direction to fully utilize space, reduce the height of the tool holder, and facilitate the user's insertion and removal of tools. For example, in the figure, they are arranged opposite each other, i.e., the water collection tray 150 is on the left side of the figure, and the drive member 300 is on the right side of the figure.

[0055] The cover 160 covers the base 130 and the drive unit 300. The cover 160 and the upper housing 140 form a chamber 120 and are provided with a funnel structure. The bottom of the funnel structure is provided with a water outlet 161 corresponding to the water collection tray 150. Water droplets on the cutter inserted into the support 100 fall onto the cover 160 due to gravity, then flow through the funnel structure to the water outlet 161 and finally collect in the water collection tray 150. The cover 160 is separately connected to either the upper housing 140 or the base 130. In the figure, the cover 160 and the base 130 are engaged. During the assembly process, before installing the upper housing 140, the cover 160 and the base 130 are engaged and connected to cover the drive unit 300.

[0056] The driving component 300 is movable relative to the base 130. For example, the driving component 300 is movably disposed on the support 100, or as in Embodiment 1, such as... Figure 7 As shown, the upper housing 140 and the base 130 are engaged to prevent separation, and the upper housing 140 can also rotate relative to the base 130 around a vertical axis. The driving member 300 is connected to the upper housing 140 and is provided with an external thread, and the connecting part 210 is provided with an internal thread that mates with the external thread. In actual operation, rotating the upper housing 140 relative to the base 130 in the fifth direction drives the connecting part 210 to move upward, and the suction part 220 is attracted and fixed to the support; rotating the upper housing 140 in the sixth direction drives the connecting part 210 to move downward, and the suction part 220 deforms and resets, releasing its attraction to the support. The fifth and sixth directions are opposite.

[0057] The rotation of the upper housing 140 causes the cutting tool to move synchronously, and the change in the cutting tool's position makes it difficult to pick up. In one embodiment, the circumferential contour of the upper housing 140 is circular, and the positioning part 110 is provided on the top surface of the upper housing 140, which reduces the impact of the rotation of the upper housing 140 on the change in the cutting tool's position.

[0058] Alternatively, in Embodiment 2, the upper housing 140 rotates relative to the base 130 around a vertical axis. The driving member 300 and the connecting part 210 are threadedly connected. The upper housing 140 includes an upper part and a lower part. The upper part has a positioning part 110 that extends beyond the lower part and connects to the base 130. The lower part connects to the driving member 300 and rotates in cooperation with the upper part. During operation, the upper part can be held to fix the base 130. When the lower part rotates along the fifth direction, the driving connecting part 210 moves upward, and the suction part 220 is attracted and fixed to the support. When the lower part rotates along the sixth direction, the driving connecting part 210 moves downward, and the suction part 220 deforms and resets to release the attraction and fixation to the support. The fifth and sixth directions are opposite. The lower part is provided with a clearance groove for the upper part to pass over. The rotation angle of the lower part is less than 360 degrees, preferably less than 90 degrees. In one embodiment, the outer peripheral surfaces of the upper and lower parts are smoothly transitioned, and the outer surface of the lower part may have an operating part protruding.

[0059] Several other embodiments are provided below, such as Figures 4-6 As shown, in Embodiment 3, the driving member 300 includes a rotating shaft 310 that rotatably engages with the support body 100 about a first horizontal axis, and an operating part 320 connected to one end of the rotating shaft 310 and extending outside the support body 100. The base 130 and the cover 160 are connected to form a pivot hole that rotatably engages with the rotating shaft 310, achieving relative fixation of the rotating shaft 310 in the vertical direction. The other end of the rotating shaft 310 has a cam structure 311 adapted to the connecting part 210. In the figure, the cam structure 311 is a disc-shaped cam. When the rotating shaft 310 rotates in the first direction, the cam structure 311 pushes the connecting part 210 upwards, causing the suction part 220 to adhere to and fix itself to the support. When the rotating shaft 310 rotates in the second direction, the cam structure 311 drives the connecting part 210 downwards, causing the suction part 220 to release from the support. The first and second directions are opposite.

[0060] like Figure 8 and Figure 9 As shown, in Embodiment 4, the driving member 300 includes a transmission part 330 that rotates with the connecting part 210 about a second horizontal axis, and an operation part 320 connected to the transmission part 330 and extending to the outside of the support body 100. The transmission part 330 has a cam surface 331. The driving member 300 rotates relative to the connecting part 210 in a third direction. The cam surface 331 abuts against the support body 100 and causes the connecting part 210 to move upward. The suction part 220 is attracted and fixed to the support. The driving member 300 rotates in a fourth direction. The cam surface 331 disengages from the support body 100. The suction part 220 deforms and resets, causing the connecting part 210 to move downward. The third direction is opposite to the fourth direction.

[0061] like Figure 10 and Figure 11As shown, in Embodiment 5, the driving member 300 includes a driving part 340 that rotatably engages with the connecting part 210 about a vertical axis, and an operating part 320 that connects to the driving part 340 and extends to the outside of the support body 100. The driving part 340 has a disc-shaped structure and at least its bottom abuts against the base 130. The driving part 340 has a first inclined surface 341, and the two sides of the first inclined surface 341 have a first high position 342 and a first low position 343. The connecting part 210 has a columnar structure and a first positioning pin 211 that radially protrudes and engages with the first inclined surface 341.

[0062] When the drive member 300 rotates in the fifth direction, the first inclined surface 341 acts on the first positioning pin 211 to drive the connecting part 210 to move upward and the first positioning pin 211 stops at the first high position 342. The suction part 220 is attracted and fixed to the support. When the drive member 300 rotates in the sixth direction, the first high position 342 and the first positioning pin 211 are misaligned. The suction part 220 deforms and resets and releases from the support. At the same time, the first positioning pin 211 is at the first low position 343. The fifth direction and the sixth direction are opposite.

[0063] like Figure 12 and Figure 13 As shown, in Embodiment Six, the driving member 300 is slidably mounted on the support body 100 in the horizontal direction. A spring is provided between the driving member 300 and the base 130 to achieve relative fixation of the driving member 300 in the vertical direction. The elastic force of the spring is greater than the deformation restoring force of the suction part 220. The spring provides support for the driving member 300 and reduces the frictional resistance to the movement of the driving member 300, making its movement smoother. Alternatively, the bottom of the driving member 300 and the base 130 may abut against each other to replace the spring.

[0064] The driving member 300 has a V-shaped groove at one end, with one wall of the V-shaped groove serving as a second inclined surface 350. The other end extends out as a support body 100 serving as an operating part 320. The second inclined surface 350 has a second high position 351 and a second low position 352. The connecting part 210 has a columnar structure and a second positioning pin 212 that radially protrudes and engages with the second inclined surface 350. When the driving member 300 slides along the seventh direction, the second inclined surface 350 acts on the second positioning pin 212, driving the connecting part 210 to move, and the second positioning pin 212 stops at the second high position 351. The suction part 220 is attracted and fixed to the support. When the driving member 300 slides along the eighth direction, the second high position 351 and the second positioning pin 212 are misaligned. The suction part 220 deforms and resets, causing the connecting part 210 to move downwards. The seventh and eighth directions are opposite.

[0065] In one embodiment, the tool holder includes an elastic reset member, such as a cylindrical spring, that acts on the suction part 220 to drive the suction part 220 to deform and reset. The two ends of the cylindrical spring act on the back side of the suction part 220 and the base 130, respectively, to drive or assist the suction part 220 to deform and reset.

[0066] To ensure that the tool holder and the support remain in an adsorption state for a long time, in some embodiments, the drive member 300 and the connecting part 210 can be mutually locked. The locking method can be caused by the direction of the force. For example, in embodiment three, the force between the connecting part 210 and the cam structure 311 is in the vertical direction; or in embodiments five and six, positioning grooves that cooperate with the first positioning pin and the second positioning pin are provided at the first high position and the second high position, respectively.

[0067] In another embodiment, the tool holder includes a retainer that acts on the drive member 300 to place it in a locked position corresponding to the adsorption state, and the retainer is movably disposed on the support body, etc.

[0068] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0069] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are quite specific and detailed. However, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A tool holder, characterized in that, include: The support body (100) has a positioning part (110) for fixing the cutter and has a cavity (120) inside to accommodate the cutter body; A suction cup (200) is disposed at the bottom of the support (100). The suction cup (200) has a connecting part (210) and a deformable suction part (220). The suction part (220) can be adsorbed and fixed on the support by deformation. The driving component (300) is connected to the connecting part (210) for driving the suction part (220) to adhere to the support, or driving the suction part (220) and the support to release adsorption.

2. The tool holder according to claim 1, characterized in that, The support (100) includes a base (130) and an upper housing (140). The suction part (220) is arranged below the base (130). The connecting part (210) passes through the base (130) and is movable relative to the base (130). The driving member (300) is arranged above the base (130). The positioning part (110) is disposed on the upper housing (140).

3. The tool holder according to claim 2, characterized in that, The base (130) and the upper shell (140) are connected separately.

4. The tool holder according to claim 2, characterized in that, It includes a water collection tray (150) movably disposed on the base (130) and a cover (160) covering the base (130) and the drive member (300). The cover (160) and the upper shell (140) form the chamber (120) and are provided with a funnel structure. The bottom of the funnel structure is provided with a water outlet (161) corresponding to the water collection tray (150).

5. The tool holder according to claim 2, characterized in that, The upper housing (140) rotates relative to the base (130) about a vertical axis. The driving member (300) is connected to the upper housing (140). The driving member (300) is threadedly connected to the connecting part (210). The upper housing (140) rotates along the fifth direction, driving the connecting part (210) to move upward. The suction part (220) is attracted and fixed to the support. The upper housing (140) rotates along the sixth direction, driving the connecting part (210) to move downward. The suction part (220) deforms and resets, releasing its attraction to the support. The fifth and sixth directions are opposite.

6. The tool holder according to claim 2, characterized in that, The upper housing (140) rotates about a vertical axis relative to the base (130), the driving member (300) and the connecting part (210) are threadedly connected, the upper housing (140) includes an upper part and a lower part, the upper part has the positioning part (110) and extends beyond the lower part to connect with the base (130), the lower part is connected to the driving member (300) and rotates with the upper part; The lower part rotates along the fifth direction, driving the connecting part (210) to move upward, and the suction part (220) is attracted and fixed to the support. The lower part rotates along the sixth direction, driving the connecting part (210) to move downward, and the suction part (220) deforms and resets, releasing its attraction to the support. The fifth and sixth directions are opposite.

7. The tool holder according to claim 1, characterized in that, The driving member (300) includes a rotating shaft (310) that rotates with the support body about a first horizontal axis, and an operating part (320) connected to one end of the rotating shaft (310) and extending to the outside of the support body (100). The other end of the rotating shaft (310) has a cam structure (311) adapted to the connecting part (210). The rotating shaft (310) rotates in a first direction, and the cam structure (311) drives the connecting part (210) to move upward, so that the suction part (220) is attracted and fixed to the support. The rotating shaft (310) rotates in a second direction, and the cam structure (311) drives the connecting part (210) to move downward, so that the suction part (220) and the support body are released from attraction. The first direction and the second direction are opposite.

8. The tool holder according to claim 1, characterized in that, The drive member (300) includes a transmission part (330) that rotatably engages with the connecting part (210) about a second horizontal axis, and an operating part (320) connected to the transmission part (330) and extending to the outside of the support body (100). The transmission part (330) has a cam surface (331). The drive member (300) rotates relative to the connecting part (210) in a third direction. The cam surface (331) abuts against the support body (100) and causes the connecting part (210) to move upward. The suction part (220) is attracted and fixed to the support. The drive member (300) rotates in a fourth direction. The cam surface (331) disengages from the support body (100). The suction part (220) deforms and resets, releasing its attraction to the support. The third direction is opposite to the fourth direction.

9. The tool holder according to claim 1, characterized in that, The drive member (300) includes a drive part (340) that rotates and engages with the connecting part (210) about a vertical axis, and an operating part (320) that connects to the drive part (340) and extends to the outside of the support body (100). The drive part (340) has a first inclined surface (341), and the first inclined surface (341) has a first high position (342) and a first low position (343) on both sides. The connecting part (210) is a columnar structure and has a first positioning pin (211) that radially protrudes and engages with the first inclined surface (341). The driving member (300) rotates along the fifth direction, the first inclined surface (341) acts on the first positioning pin (211) to drive the connecting part (210) to move upward and the first positioning pin (211) stays at the first high position (342), the suction part (220) is attracted and fixed to the support, the driving member (300) rotates along the sixth direction, the first high position (342) and the first positioning pin (211) are misaligned, the suction part (220) deforms and resets and releases the attraction from the support, the fifth direction and the sixth direction are opposite.

10. The tool holder according to claim 1, characterized in that, The driving member (300) is slidably mounted on the support body (100) in the horizontal direction. One end of the driving member (300) has a second inclined surface (350), and the other end extends out of the support body (100) to serve as an operating part (320). The second inclined surface (350) has a second high position (351) and a second low position (352). The connecting part (210) is a columnar structure and has a second positioning pin (212) that cooperates with the second inclined surface (350) in the radial direction. The driving member (300) slides along the seventh direction, the second inclined surface (350) acts on the second positioning pin (212) to drive the connecting part (210) to move and the second positioning pin (212) stays at the second high position (351), the suction part (220) is attracted and fixed to the support, the driving member (300) slides along the eighth direction, the second high position (351) and the second positioning pin (212) are misaligned, the suction part (220) deforms and resets and releases the attraction from the support, the seventh direction and the eighth direction are opposite.

11. The tool holder according to claim 9 or 10, characterized in that, It includes an elastic reset member that acts on the suction part (220) to drive the suction part (220) to deform and reset.

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