Knife sharpener

Abstract

The utility model relates to the technical field of knife sharpeners, in particular to a knife sharpener which comprises a base, a clamp base, a supporting frame fixed to the base and a grinding piece connected to the supporting frame in a sliding mode. The clamp seat is horizontally connected with the base in a sliding mode, a sliding locking piece is installed on the clamp seat, and a clamp is installed on the clamp seat; after the technical scheme is adopted, when the cutting edge of the cutter is long, the position of the cutter can be adjusted by adjusting the position of the clamp base only by unlocking the sliding locking piece, after the cutter is adjusted to the needed position, the clamp base can be fixed to the base only by locking the sliding locking piece, the cutter does not need to be detached from the clamp, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of knife sharpener technology, and specifically to a knife sharpener. Background Technology

[0002] Chinese utility model patent document CN 210678038 U discloses a fixed-angle sharpening device, which relates to grinding tools and is used to solve the problem of uncontrollable grinding angle of ordinary sharpeners. It includes a tool holder, a clamp set on the tool holder for fixing the tool, and a fixed-angle sharpening device set on the side of the tool holder away from the clamp. The fixed-angle sharpening device includes a lifting rail mounted on the tool holder, a slide seat slidably set on the lifting rail, a universal ball joint seat mounted on the slide seat, a telescopic rod passing through the center of the hinge ball of the universal ball joint seat, and a stone fixing mechanism fixed to the end of the telescopic rod away from the universal ball joint seat for fixing the sharpening stone. The telescopic rod is inclined to the surface of the tool holder, and the height of the lifting rail is adjusted by an adjustment mechanism. The clamp includes a stepped slot on the base, connecting threaded holes arranged in the stepped slot and parallel to the length of the lifting rail, and clamping blocks located in the stepped slot and on both sides of the stepped slot. The clamping blocks are provided with fixing bolts, which are threaded into the connecting threaded holes after passing through the clamping blocks.

[0003] The aforementioned fixed-angle sharpener has the following problem: when the cutting edge is long (i.e., part of the cutting edge is outside the sharpening range of the fixed-angle sharpener after the tool is fixed on the fixture), only the part of the cutting edge within the sharpening range of the fixed-angle sharpener can be sharpened without removing the tool from the fixture. Therefore, in order to ensure that the entire cutting edge of the tool can be sharpened, it is still necessary to remove the tool from the fixture and adjust its position during the sharpening process. However, when adjusting the position of the tool, it is necessary to loosen the fixing bolts on the two clamping blocks respectively, then adjust the position of the tool, and finally tighten the fixing bolts on the two clamping blocks respectively. The adjustment process is relatively troublesome.

[0004] In view of this, the applicant has conducted in-depth research on the above-mentioned issues, which led to this case. Utility Model Content

[0005] The purpose of this invention is to provide a sharpening tool that facilitates the adjustment of the tool's position.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A knife sharpener includes a base, a clamping seat, a support frame fixed on the base, and a sharpening element slidably connected to the support frame;

[0008] The clamp seat is horizontally slidably connected to the base, a sliding locking element is installed on the clamp seat, and a clamp is installed on the clamp seat.

[0009] Preferably, a horizontally arranged guide rail is fixed to one side of the base; the sliding locking component includes a bolt;

[0010] The clamp base has a guide rail groove, which is slidably connected to the guide rail. An elastic slot is formed at the bottom of the guide rail groove, and the plane containing the elastic slot is horizontally arranged. A first elastic block is formed at a position corresponding to the upper side of the elastic slot, and a second elastic block is formed at a position corresponding to the lower side of the elastic slot. The first elastic block has a vertically arranged first hole, and the second elastic block has a second hole coaxially arranged with the first hole. The bolt's shank passes sequentially through the first hole and the elastic slot from above the first elastic block and is helically connected to the second hole. The bolt's nut abuts against the upper side of the first elastic block.

[0011] Preferably, the support frame includes a crossbar and two columns, the lower ends of the two columns being fixedly connected to the base; the crossbar is arranged parallel to the guide rail, and the crossbar is fixedly connected to the two columns respectively;

[0012] The grinding component is slidably connected to the crossbar.

[0013] Preferably, both columns have threaded sections, and each threaded section is provided with an adjustment group.

[0014] Each of the aforementioned adjustment groups includes a sliding sleeve fitted onto the corresponding threaded section and a first nut and a second nut respectively screwed onto the corresponding threaded section;

[0015] In the same adjustment group, the first nut abuts against the upper side of the sliding sleeve, and the second nut abuts against the lower side of the sliding sleeve;

[0016] The two ends of the crossbar are respectively fixedly connected to the two sliding sleeves.

[0017] Preferably, the crossbar is a cylindrical bar;

[0018] The crossbar is provided with a universal joint, which includes a first movable seat and a second movable seat;

[0019] The first movable seat has a first hole, and the crossbar slides through the first hole;

[0020] The second movable seat includes a movable seat body and a rotating column fixed to the movable seat body. The rotating column is rotatably connected to the first movable seat. The rotating column is arranged perpendicular to the crossbar. The movable seat body has a second hole.

[0021] The grinding element slides through the second hole.

[0022] With the above technical solution, when the cutting edge of the tool is long (that is, after the tool is fixed on the fixture, part of the cutting edge is outside the grinding range of the grinding workpiece), the position of the tool can be adjusted by adjusting the position of the fixture seat simply by releasing the sliding locking part. After the tool is adjusted to the required position, the fixture seat can be fixed to the base simply by locking the sliding locking part. There is no need to remove the tool from the fixture, making the operation simple and convenient.

[0023] A knife sharpener includes a base, a clamp, a support frame fixed on the base, and a sharpening element slidably connected to the support frame;

[0024] The clamp includes a movable frame that is horizontally slidably connected to the base and a tool holder assembly mounted on the movable frame;

[0025] The base is equipped with a sliding locking mechanism for the movable frame.

[0026] Preferably, the movable frame has a horizontally arranged first guide rail fixed on the side near the support frame, and the tool holder assembly is installed on the side of the movable frame away from the support frame; the sliding locking component of the movable frame includes a first bolt;

[0027] The base has a horizontally arranged first guide groove, which is slidably connected to the first guide rail. A first elastic slot is formed at the bottom of the first guide groove, and the plane containing the elastic slot is horizontally arranged. A third elastic block is formed on the base at a position corresponding to the upper side of the first elastic slot, and a fourth elastic block is formed on the base at a position corresponding to the lower side of the first elastic slot. The third elastic block has a vertically arranged third hole, and the fourth elastic block has a fourth hole coaxially arranged with the third hole. The thread of the first bolt passes sequentially through the third hole and the first elastic slot from above the third elastic block and is spirally connected to the fourth hole. The nut of the first bolt abuts against the upper side of the third elastic block.

[0028] Preferably, the movable frame includes a first mounting component, a second mounting component, an upper strip plate, and a lower strip plate that is horizontally slidably connected to the lower side of the upper strip plate;

[0029] The first guide rail includes an upper half rail fixed to the upper strip plate and a lower half rail fixed to the lower strip plate. The upper half rail and the lower half rail are horizontally slidably connected, and the upper half rail and the lower half rail are respectively horizontally slidably connected to the first guide rail groove.

[0030] Both the first mounting component and the second mounting component are arranged along the length direction of the upper strip plate;

[0031] The first mounting component is located on one side of the upper strip plate, and the second mounting component is located on the other side of the upper strip plate;

[0032] The first mounting component is fixed to the upper strip plate, and the second mounting component is fixed to the lower strip plate;

[0033] The tool chuck assembly includes a first chuck mounted on the first mounting member and a second chuck mounted on the second mounting member.

[0034] Preferably, the movable frame is provided with a horizontally arranged clamp slide rail on the side away from the support frame;

[0035] The chuck slide rail includes an upper half slide rail and a lower half slide rail arranged horizontally respectively; the upper half slide rail is fixed to the upper strip plate, and the lower half slide rail is fixed to the lower strip plate;

[0036] The first mounting component is fixed with a first rail segment, which has a first upper half that connects to the upper half slide rail and a first lower half that connects to the lower half slide rail.

[0037] The second mounting component is fixed with a second rail segment, which has a second upper half that connects to the upper half slide rail and a second lower half that connects to the lower half slide rail;

[0038] The first track segment, the second track segment, the upper half slide rail, and the lower half slide rail together form a clamp track assembly;

[0039] The first chuck and the second chuck are slidably connected to the chuck track assembly, the first chuck is provided with a first sliding locking element, and the second chuck is provided with a second sliding locking element.

[0040] Preferably, the base includes a mounting base and a flipping seat, the support frame is fixed on the mounting base, the mounting base has a vertically arranged base guide groove, one side of the flipping seat is fixed with a vertically arranged base guide rail, the base guide rail and the base guide groove are detachably slidably connected, and a base sliding locking component is installed on the mounting base;

[0041] The movable frame is slidably connected to the flipping base, and the movable frame sliding locking component is installed on the flipping base.

[0042] With the above technical solution, when the cutting edge of the tool is long (i.e., after the tool is fixed on the tool holder assembly on the fixture, part of the cutting edge is still outside the grinding range of the grinding workpiece), the position of the tool can be adjusted by adjusting the position of the moving frame simply by releasing the sliding locking part of the moving frame; after the tool is adjusted to the required position, the moving frame can be fixed on the base by locking the sliding locking part, without having to remove the tool from the tool holder assembly on the fixture, making the operation simple and convenient. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of the sharpener according to Embodiment 1 of this utility model;

[0044] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0045] Figure 3 This is a cross-sectional structural diagram of the grinding component according to Embodiment 1 of this utility model;

[0046] Figure 4 This is a schematic diagram of the structure of the knife sharpener according to Embodiment 2 of this utility model;

[0047] Figure 5 This is a schematic diagram of the mating structure of the connecting block, the flipping seat, and the clamp in Embodiment 2 of this utility model;

[0048] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0049] Figure 7 A schematic diagram of the structure of the knife sharpener according to Embodiment 3 of this utility model;

[0050] Figure 8 An exploded view of the fixture in Embodiment 3 of this utility model;

[0051] Figure 9 An exploded view of the fixture in Embodiment 3 of this utility model.

[0052] In the picture:

[0053] 100 - Base; 110 - Clamp base;

[0054] 110a - Connector Block;

[0055] 111-Clamp; 112-Sliding locking element;

[0056] 130 - Guide rail;

[0057] 600 - Basic base; 610 - Mounting base;

[0058] 611-Connecting block; 620-Flipping base;

[0059] 210 - Elastic joint; 220 - First elastic block;

[0060] 230 - Second elastic block;

[0061] 240 - First elastic joint; 250 - Third elastic block;

[0062] 260 - Fourth elastic block;

[0063] 300 - Support frame; 310 - Crossbar;

[0064] 320 - Column; 330 - Adjustment group;

[0065] 331 - Sliding sleeve; 332 - First nut;

[0066] 333 - Second nut;

[0067] 340 - Universal head; 341 - First movable seat;

[0068] 342 - Second active seat;

[0069] 400 - Grinding parts; 410 - Whetstones;

[0070] 420 - Mounting box; 430 - Fastening bolt;

[0071] 440 - Fastener; 450 - Through guide rod;

[0072] 460-Spring;

[0073] 500-Mobile Stand;

[0074] 510 - First mounting component; 511 - First track section;

[0075] 520 - Second mounting component; 521 - Second track section;

[0076] 530-upper strip plate;

[0077] 540-lower strip plate;

[0078] 550 - First guide rail; 551 - Upper half rail;

[0079] 552 - Lower half rail;

[0080] 560-Chuck slide rail;

[0081] 561 - First chuck; 562 - Second chuck;

[0082] 563 - Third chuck; 564 - Upper slide rail;

[0083] 565 - Lower half slide rail;

[0084] 999 - Cutting tools. Detailed Implementation

[0085] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0086] Example 1

[0087] like Figures 1-3 As shown, this embodiment provides a knife sharpener, including a base 100, a clamp seat 110, a support frame 300 fixed on the base 100, and a grinding component 400 slidably connected to the support frame 300; a whetstone 410 is mounted on the grinding component 400.

[0088] As a preferred technical solution, the grinding component 400 includes a mounting box 420, fastening bolts 430, fasteners 440, springs 460, and a guide rod 450. The mounting box 420 is elongated, and one end of the mounting box 420 is fixedly connected to the guide rod 450. A mounting groove is provided on one side of the mounting box 420, and the whetstone 410 is embedded in the mounting groove. A fastening hole is provided at the end of the mounting box 420 away from the guide rod 450. The axis of the fastening hole and the guide rod 450 are respectively arranged along the length direction of the mounting box 420, and the fastening hole communicates with the mounting groove. The fastening hole has a threaded section, and the fastener 440 is set in the fastening hole. The fastening bolt 430 is located on the side of the fastener 440 away from the mounting groove. The spring 460 is set in the fastening hole and is located between the fastening bolt 430 and the fastener 440. The fastening bolt 430 is helically connected to the threaded section of the fastening hole and abuts against the spring 460. The spring 460 abuts against the fastener 440. The fastener 440 abuts against the whetstone 410. The whetstone 410 abuts against the mounting groove. When it is necessary to remove the whetstone 410, simply hold the whetstone 410 and pull it towards the fastening bolt 430, while pressing the fastener 440 towards the fastening bolt 430. This will create a gap between the whetstone 410 and the end of the mounting groove away from the fastening bolt 430, allowing the whetstone 410 to be removed from the mounting groove. When it is necessary to fix the whetstone 410 in the mounting groove, simply hold it and place one end of the whetstone 410 against the fastener 440, pressing the fastener 440 towards the fastening bolt 430 into the fastening hole. Then, install the whetstone 410 in the mounting groove and release it to allow the whetstone 410 to abut against the mounting groove. This process is simple and convenient.

[0089] The clamp base 110 is horizontally slidably connected to the base 100, and a sliding locking element 112 is installed on the clamp base 110. In this embodiment, a horizontally arranged guide rail 130 is fixed on one side of the base 100, and the sliding locking member 112 includes a bolt; a guide rail groove is provided on the clamp seat 110, and the guide rail groove is slidably connected to the guide rail 130. An elastic slot 210 is provided at the bottom of the guide rail groove, and the plane where the elastic slot 210 is located is horizontally arranged. A first elastic block 220 is formed on the clamp seat 110 at a position corresponding to the upper side of the elastic slot 210, and a second elastic block 230 is formed on the clamp seat 110 at a position corresponding to the lower side of the elastic slot 210; a first elastic block 220 is provided with a vertically arranged first hole, and a second elastic block 230 is provided with a second hole arranged coaxially with the first hole. The second hole has a second internal thread section; the bolt shank passes through the first hole and the elastic slot 210 sequentially from above the first elastic block 220 and is spirally connected to the second internal thread section of the second hole. The bolt nut abuts against the upper side of the first elastic block 220. When the fixture seat 110 needs to be fixed to the base 100, tighten the bolts, causing the first elastic block 220 and the second elastic block 230 to undergo slight elastic deformation, resulting in a slight displacement that brings them closer together. This causes the guide rail groove to clamp the guide rail 130, achieving a sliding lock. When the position of the fixture seat 110 needs to be adjusted, loosen the bolts, causing the first elastic block 220 and the second elastic block 230 to elastically return to their original position, allowing the fixture seat 110 to move. A fixture 111 is installed on the fixture seat 110, and the fixture 111 is used to hold the cutting tool 999.

[0090] After adopting the above technical solution, when the cutting edge of the tool 999 is long (that is, after the tool 999 is fixed on the fixture 111, part of the cutting edge is outside the grinding range of the grinding part 400), the position of the tool 999 can be adjusted by adjusting the position of the fixture seat 110 simply by releasing the sliding locking part 112 (i.e., loosening the bolt). After the tool 999 is adjusted to the required position, the fixture seat 110 can be fixed on the base 100 simply by locking the sliding locking part 112 (i.e., tightening the bolt). There is no need to remove the tool 999 from the fixture 111, making the operation simple and convenient.

[0091] The support frame 300 includes a crossbar 310 and two uprights 320, the lower ends of which are fixedly connected to the base 100. The crossbar 310 is arranged parallel to the guide rail 130 and is fixedly connected to the two uprights 320. In this embodiment, both uprights 320 have threaded sections, and each threaded section is provided with an adjustment group 330. Each adjustment group 330 includes a sliding sleeve 331 sleeved on the corresponding threaded section and a first nut 332 and a second nut 333 screwed onto the corresponding threaded section. In the same adjustment group 330, the first nut 332 abuts against the upper side of the sliding sleeve 331, and the second nut 333 abuts against the lower side of the sliding sleeve 331. The two ends of the crossbar 310 are fixedly connected to the two sliding sleeves 331 respectively. The grinding part 300 is slidably connected to the crossbar 310 of the support frame 300. The adjustment group 330 is used to adjust the height position of the crossbar 310. The adjustment methods of each adjustment group 330 are the same. Taking one adjustment group 330 as an example, when it is necessary to adjust the height position of the crossbar 310, rotate the first nut 332 and the second nut 333 respectively to move the sliding sleeve 331 to the required height, and then tighten the first nut 332 and the second nut 333 towards the sliding sleeve 331 respectively.

[0092] As a preferred technical solution, the crossbar 310 is a cylindrical bar, and a universal joint 340 is provided on the crossbar 310. The universal joint 340 includes a first movable seat 341 and a second movable seat 342. The first movable seat 341 has a first hole, and the crossbar 310 is slidably inserted into the first hole. The second movable seat 342 includes a movable seat body and a rotating column fixed to the movable seat body. The rotating column is rotatably connected to the first movable seat 341 and is arranged perpendicular to the crossbar 310. The movable seat body has a second hole. The guide rod 450 of the grinding part 400 is slidably inserted into the second hole. By providing a guide for the grinding part 400 with the universal joint 340, the grinding quality is improved.

[0093] Example 2

[0094] like Figures 4-6 As shown, this embodiment provides a knife sharpener, including a base 600, a clamp 111, a support frame 300 fixed on the base 600, and a sharpening component 400 slidably connected to the support frame 300. A sharpening stone 410 is mounted on the sharpening component 400.

[0095] The fixture 111 includes a movable frame 500 that is horizontally slidably connected to the base 600 and a tool chuck assembly mounted on the movable frame 500. The tool chuck assembly is used to clamp and fix the tool 999. A sliding locking member (not shown in the figure) is installed on the base 600.

[0096] The connection structure between the base 600 and the clamp 111 is as follows: the movable frame 500 is integrally connected to a horizontally arranged first guide rail 550 on the side near the support frame 300; the tool holder assembly is installed on the side of the movable frame 500 away from the support frame 300; the sliding locking component of the movable frame includes a first bolt; the base 600 has a horizontally arranged first guide rail groove, which is slidably connected to the first guide rail 550; a horizontally arranged first elastic slot 240 is formed at the bottom of the first guide rail groove; and the base 600 is positioned above the first elastic slot 240. A third elastic block 250 is formed at the corresponding position, and a fourth elastic block 260 is formed on the base base 600 at the position corresponding to the lower side of the first elastic slot 240; the third elastic block 250 has a vertically arranged third hole, and the fourth elastic block 260 has a fourth hole arranged coaxially with the third hole, and the fourth hole has a fourth internal thread section; the shank of the first bolt passes through the third hole and the first elastic slot 240 sequentially from the top of the third elastic block 250 and is spirally connected to the fourth internal thread section of the fourth hole, and the nut of the first bolt abuts against the upper side of the third elastic block 250. When it is necessary to fix the movable frame 500 to the base 600, tighten the first bolt, so that the third elastic block 250 and the fourth elastic block 260 produce a slight elastic deformation, which in turn produces a slight displacement that brings them closer together. This causes the first guide rail groove to clamp the first guide rail 550, achieving sliding locking. When it is necessary to adjust the position of the movable frame 500, loosen the first bolt, so that the third elastic block 250 and the fourth elastic block 260 elastically reset, and the position of the movable frame 500 can be adjusted.

[0097] After adopting the above technical solution, when the cutting edge of the tool 999 is long (that is, after the tool 999 is fixed on the tool holder assembly on the fixture 111, part of the cutting edge is still outside the grinding range of the grinding part 400), the position of the tool 999 can be adjusted by adjusting the position of the moving frame 500 simply by releasing the sliding locking part of the moving frame (i.e., loosening the bolt); after the tool 999 is adjusted to the required position, the moving frame 500 can be fixed on the base base 600 simply by locking the sliding locking part 112 (i.e., tightening the bolt), without having to remove the tool 999 from the tool holder assembly on the fixture 111, making the operation simple and convenient.

[0098] In this embodiment, the tool chuck assembly includes a first chuck 561 and a second chuck 562. A horizontally arranged chuck slide rail 560 is integrally connected to the movable frame 500 on the side away from the support frame 300. The first chuck 561 and the second chuck 562 are horizontally slidably connected to the chuck slide rail 560, respectively. The first chuck 561 is provided with a first sliding locking element (not shown in the figure), and the second chuck is provided with a second sliding locking element (not shown in the figure). It should be noted that the first and second sliding locking elements can be conventional locking elements. In this embodiment, the same structure as the sliding locking element 112 in Embodiment 1 is used, and will not be described again. The distance between the first chuck 561 and the second chuck 562 is adjusted according to the cutting edge length of different tools 999 to improve clamping stability.

[0099] As a preferred technical solution, the base 600 includes a mounting base 610 and a flipping seat 620. The support frame 300 is fixed on the mounting base 610. It should be noted that the mounting base 610 includes a base 100, a clamp seat 110 fixed on the base 100, and a connecting block 110a mounted on the clamp seat 110. The connecting block 110a of the mounting base 610 has a vertically arranged base guide groove. A vertically arranged base guide rail is fixed to one side of the flipping seat 620. The base guide rail and the base guide groove are detachably and slidably connected. A base sliding locking component (not shown in the figure) is installed on the connecting block of the mounting base 610. It should be noted that the base sliding locking component can be a conventional locking component. In this embodiment, the same structure as the sliding locking component 112 in Embodiment 1 is used, and will not be described again. Specifically, the sliding locking component of the moving frame is installed on the flipping seat 620. A first guide groove is opened in the flipping seat 620, and the first guide rail 550 of the moving frame 500 is slidably connected to the first guide groove of the flipping seat 620. With this technical solution, when the tool 999 needs to be flipped, simply unlock the base sliding lock to remove the flipping seat 620 from the mounting base 610, flip it over, and put it back into the mounting base 610. Finally, lock the base sliding lock to complete the flipping of the tool 999. There is no need to remove the tool 999 from the fixture 111. The operation is simple and convenient.

[0100] Example 3

[0101] like Figures 7-9 As shown, the difference between this embodiment and embodiment two is that the structure of the movable frame 500 is different, the structure of the first guide rail 550 is different, and the structure of the chuck slide rail 560 is different.

[0102] In this embodiment, the movable frame 500 includes a first mounting member 510, a second mounting member 520, an upper strip plate 530, and a lower strip plate 540 horizontally slidably connected to the lower side of the upper strip plate 530. The first guide rail 550 includes an upper half rail 551 integrally connected to the upper strip plate 530 and a lower half rail 552 integrally connected to the lower strip plate 540. The upper half rail 551 and the lower half rail 552 are horizontally slidably connected and respectively horizontally slidably connected to the first guide rail groove. The first mounting member 510 and the second mounting member 520 are both arranged along the length direction of the upper strip plate 530. The first mounting member 510 is located on one side of the upper strip plate 530, and the second mounting member 520 is located on the other side of the upper strip plate 530. The first mounting member 510 is fixed to the upper strip plate 530, and the second mounting member 520 is fixed to the lower strip plate 540.

[0103] The connection structure between the chuck assembly and the movable frame 500 is as follows: the movable frame 500 has a horizontally arranged chuck slide rail 560 on the side away from the support frame 300. The chuck slide rail 560 includes an upper half slide rail 564 and a lower half slide rail 565, which are arranged horizontally respectively; the upper half slide rail 564 is fixed to the upper strip plate 530, and the lower half slide rail 565 is fixed to the lower strip plate 540. A first rail segment 511 is fixed on the first mounting member 510. The first rail segment 511 has a first upper half that connects to the upper half slide rail 564 and a first lower half that connects to the lower half slide rail 565. A second rail segment 521 is fixed on the second mounting member 520. The second rail segment 521 has a second upper half that connects to the upper half slide rail 564 and a second lower half that connects to the lower half slide rail 565.

[0104] The first track section 511, the second track section 521, the upper half slide rail 564, and the lower half slide rail 565 together form a clamp track assembly; the first clamp 561 and the second clamp 562 are slidably connected to the clamp track assembly respectively.

[0105] The first mounting component 510, the upper strip plate 530, the upper half rail 551, the upper half slide rail 564, and the first rail section 511 together form the first carriage; the second mounting component 520, the lower strip plate 540, the lower half rail 552, the lower half slide rail 565, and the second rail section 521 together form the second carriage.

[0106] It should be noted that, during use, the positions of the first chuck 561 and the second chuck 562 can also be adjusted according to the length of the cutting tool 999.

[0107] For ease of explanation, the distance between the first mounting member 510 and the second mounting member 520 is defined as the end clamping length of the movable frame 500. In use, the end clamping length of the movable frame 500 is adjusted by sliding the first slide closer to or further away from the second mounting member 520 and by sliding the second slide closer to or further away from the first mounting member 510. Simply put, the first mounting member 510 and the second mounting member 520 move closer to or further away from each other. It should be noted that during the adjustment of the first slide and the second slide, it is necessary to ensure that the upper half rail 551 and the lower half rail 552 do not disengage from the first guide rail groove.

[0108] During the process of adjusting the first carriage and the second carriage, the value of the end clamping length of the movable frame 500 when the first mounting member 510 and the second mounting member 520 are brought closest together is the minimum end clamping length.

[0109] In this embodiment, the first clamp 561 is slidably connected to the first rail segment 511, and the second clamp 562 is slidably connected to the second rail segment 521.

[0110] When the end clamping length of the movable frame 500 is equal to the minimum end clamping length, the first clamp 561 can slide on the first track section 511, or on the combined track of the upper half slide rail 564 and the lower half slide rail 565, or switch back and forth between the first track section 511 and the combined track; the second clamp 562 can slide on the second track section 521, or on the combined track of the upper half slide rail 564 and the lower half slide rail 565, or switch back and forth between the second track section 521 and the combined track.

[0111] When the end clamping length of the movable frame 500 is greater than the minimum end clamping length, the first clamp 561 can only slide on the first track section 511; the second clamp 562 can only slide on the second track section 521.

[0112] After adopting the above technical solution, the length of the moving frame 500 is adjusted by the sliding cooperation of the upper strip plate 530, the lower strip plate 540 and the first guide rail groove, thereby adjusting the maximum distance between the first chuck 561 and the second chuck 562, so as to meet the clamping requirements of different cutting edge lengths of the cutting tools 999.

[0113] Furthermore, to ensure clamping stability, the tool chuck assembly also includes a third chuck 563, which is slidably connected to both the upper slide rail 564 and the lower slide rail 565. The third chuck 563 is provided with a third sliding locking element (not shown in the figure). This third sliding locking element can be a conventional locking element; in this embodiment, it adopts the same structure as the sliding locking element 112 in Embodiment 1, and will not be described further.

[0114] It should be noted that the third chuck 563 can only be slidably connected to both the upper slide rail 564 and the lower slide rail 565 at the same time. It cannot be slidably connected to the upper slide rail 564 or the lower slide rail 565 alone. This should be taken into account when adjusting the third chuck 563 during use.

[0115] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0116] The present invention has been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, and these modifications all fall within the protection scope of the present invention.

Claims

1. A knife sharpener, characterized in that: Includes a base, a clamping seat, a grinding component, and a support frame fixed to the base; A sliding locking element is installed on the clamp base, and a clamp is installed on the clamp base; A horizontally arranged guide rail is fixed to one side of the base; the sliding locking component includes bolts; The clamp base has a guide rail groove, which is slidably connected to the guide rail. An elastic slot is formed at the bottom of the guide rail groove, and the plane containing the elastic slot is horizontally arranged. A first elastic block is formed at a position corresponding to the upper side of the elastic slot, and a second elastic block is formed at a position corresponding to the lower side of the elastic slot. The first elastic block has a vertically arranged first hole, and the second elastic block has a second hole coaxially arranged with the first hole. The bolt's shank passes sequentially through the first hole and the elastic slot from above the first elastic block and is helically connected to the second hole. The bolt's nut abuts against the upper side of the first elastic block. The support frame includes a crossbar and two columns, the lower ends of which are fixedly connected to the base; the crossbar is arranged parallel to the guide rail and is fixedly connected to the two columns respectively. The grinding component is slidably connected to the crossbar.

2. The knife sharpener as described in claim 1, characterized in that: Both columns have threaded sections, and each threaded section is equipped with an adjustment assembly. Each of the aforementioned adjustment groups includes a sliding sleeve fitted onto the corresponding threaded section and a first nut and a second nut respectively screwed onto the corresponding threaded section; In the same adjustment group, the first nut abuts against the upper side of the sliding sleeve, and the second nut abuts against the lower side of the sliding sleeve; The two ends of the crossbar are respectively fixedly connected to the two sliding sleeves.

3. The knife sharpener as described in claim 1, characterized in that: The crossbar is a cylindrical bar; The crossbar is provided with a universal joint, which includes a first movable seat and a second movable seat; The first movable seat has a first hole, and the crossbar slides through the first hole; The second movable seat includes a movable seat body and a rotating column fixed to the movable seat body. The rotating column is rotatably connected to the first movable seat. The rotating column is arranged perpendicular to the crossbar. The movable seat body has a second hole. The grinding element slides through the second hole.

4. A knife sharpener, characterized in that: Includes a base, a clamp, a support frame fixed on the base, and a grinding component slidably connected to the support frame; The clamp includes a movable frame that is horizontally slidably connected to the base and a tool holder assembly mounted on the movable frame; The base is equipped with a sliding locking mechanism for the movable frame.

5. A knife sharpener as described in claim 4, characterized in that: The movable frame has a horizontally arranged first guide rail fixed on the side near the support frame, and the tool holder assembly is installed on the side of the movable frame away from the support frame; the sliding locking component of the movable frame includes a first bolt; The base has a horizontally arranged first guide groove, which is slidably connected to the first guide rail. A first elastic slot is formed at the bottom of the first guide groove, and the plane containing the elastic slot is horizontally arranged. A third elastic block is formed on the base at a position corresponding to the upper side of the first elastic slot, and a fourth elastic block is formed on the base at a position corresponding to the lower side of the first elastic slot. The third elastic block has a vertically arranged third hole, and the fourth elastic block has a fourth hole coaxially arranged with the third hole. The thread of the first bolt passes sequentially through the third hole and the first elastic slot from above the third elastic block and is spirally connected to the fourth hole. The nut of the first bolt abuts against the upper side of the third elastic block.

6. A knife sharpener as described in claim 5, characterized in that: The movable frame includes a first mounting component, a second mounting component, an upper strip plate, and a lower strip plate that is horizontally slidably connected to the lower side of the upper strip plate; The first guide rail includes an upper half rail fixed to the upper strip plate and a lower half rail fixed to the lower strip plate. The upper half rail and the lower half rail are horizontally slidably connected, and the upper half rail and the lower half rail are respectively horizontally slidably connected to the first guide rail groove. Both the first mounting component and the second mounting component are arranged along the length direction of the upper strip plate; The first mounting component is located on one side of the upper strip plate, and the second mounting component is located on the other side of the upper strip plate; The first mounting component is fixed to the upper strip plate, and the second mounting component is fixed to the lower strip plate; The tool chuck assembly includes a first chuck mounted on the first mounting member and a second chuck mounted on the second mounting member.

7. A knife sharpener as described in claim 6, characterized in that: The movable frame is provided with a horizontally arranged clamp slide rail on the side away from the support frame; The chuck slide rail includes an upper half slide rail and a lower half slide rail arranged horizontally respectively; the upper half slide rail is fixed to the upper strip plate, and the lower half slide rail is fixed to the lower strip plate; The first mounting component is fixed with a first rail segment, which has a first upper half that connects to the upper half slide rail and a first lower half that connects to the lower half slide rail. The second mounting component is fixed with a second rail segment, which has a second upper half that connects to the upper half slide rail and a second lower half that connects to the lower half slide rail; The first track segment, the second track segment, the upper half slide rail, and the lower half slide rail together form a clamp track assembly; The first chuck and the second chuck are slidably connected to the chuck track assembly, the first chuck is provided with a first sliding locking element, and the second chuck is provided with a second sliding locking element.

8. A knife sharpener as described in claim 4, characterized in that: The base includes a mounting base and a flipping seat. The support frame is fixed on the mounting base. The mounting base has a vertically arranged base guide groove. A vertically arranged base guide rail is fixed on one side of the flipping seat. The base guide rail and the base guide groove are detachably and slidably connected. A base sliding locking component is installed on the mounting base. The movable frame is slidably connected to the flipping base, and the movable frame sliding locking component is installed on the flipping base.

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