A blade protection structure for an ice drill bit and an ice drill

Abstract

The utility model provides a kind of blade protection structure and ice drill for ice drill drill bit, the blade protection structure includes: blade fixed seat, including fixed seat body and fixed part, the fixed part is located the middle part of fixed seat body, the fixed part is used to be connected with drill rod, the fixed seat body includes cylindrical shell, connecting piece and blade support piece, the connecting piece connects the cylindrical shell and the fixed part, the blade support piece is set in the one end of cylindrical shell away from the drill rod, and the blade support piece is used to support blade;Cover, with blade accommodating groove, the cover is detachably connected with the blade fixed seat by hook and slot structure, in the connection state of the cover and the blade fixed seat, the blade is located in the blade accommodating groove.This application improves the connection reliability between cover and the blade fixed seat, thereby improving the security of blade.

Description

TECHNICAL FIELD

[0001] The utility model relates to ice drill technical field especially relates to a blade protection structure for ice drill drill head and ice drill. BACKGROUND

[0002] In the cold season, people need to break ice for fishing, winter swimming or measuring ice thickness, the traditional method is to use ice pick, ice saw and other tools to knock and hammer, this way is time-consuming and laborious and noisy. In order to improve this problem, professional ice drill tools appear, ice drill tools include crank handle, drill rod and blade body, the drill rod is operated through the crank handle, and the drilling of ice surface is realized.

[0003] Among them, the blade of the ice drill plays a crucial role in the drilling operation on the ice surface, and the sharpness will directly affect the ice drilling effect and efficiency; in addition, since the blade is relatively sharp, if the blade is not protected, it may cause personal injury; therefore, it is necessary to configure a protective cover for the blade after the ice drill is used to avoid damage to the blade and to avoid personal injury. At present, the existing blade guard cover generally uses hoop rope, rubber strip, binding rope and the like to bind the blade guard cover on the blade fixing seat or spiral blade when protecting the cutter of the ice drill drill head. Although this method can realize the fixation of the blade guard cover, the connection is not firm, which may cause the deviation or falling off of the blade guard cover, thereby reducing the protection effect of the blade, and even threatening the safety of personnel, thereby reducing the safety of the blade. Therefore, how to improve the connection reliability between the blade guard cover and the blade fixing seat and how to improve the safety of the blade are technical problems to be solved. SUMMARY

[0004] Therefore, the utility model embodiment provides a kind of blade protection structure for ice drill drill head and ice drill to eliminate or improve one or more defects in prior art.

[0005] One aspect of the utility model provides a kind of blade protection structure for ice drill drill head, the blade protection structure includes:

[0006] The blade fixing seat includes a fixing seat body and a fixing part, the fixing part is located at the middle part of the fixing seat body, and the fixing part is used to be connected with the drill rod. The fixing seat body includes a cylindrical shell, a connecting piece and a blade support, the connecting piece connects the cylindrical shell and the fixing part, and the blade support is arranged at one end of the cylindrical shell away from the drill rod. The blade support is used to support the blade.

[0007] The blade guard cover has a blade accommodating groove, and the blade guard cover and the blade fixing seat are detachably connected through a hook and slot structure. In the connected state of the blade guard cover and the blade fixing seat, the blade is located in the blade accommodating groove.

[0008] In some embodiments of the utility model, the clamping hook of the clamping hook and groove structure is located on the blade cover, and the clamping groove of the clamping hook and groove structure is located on the cylindrical shell.

[0009] In some embodiments of the utility model, the clamping groove is a notch groove concave from the outer side wall of the cylindrical shell, and the groove depth of the notch groove gradually increases from bottom to top along the height direction of the cylindrical shell.

[0010] In some embodiments of the utility model, the clamping hook is a plastic elastic buckle, and the plastic elastic buckle has a guide plate for cooperating with the notch groove, the guide plate has a slope abutment surface for cooperating with the groove bottom of the notch groove, and the slope abutment surface gradually inclines inward from bottom to top along the height direction of the blade cover.

[0011] In some embodiments of the utility model, the number of guide plates is two, and the two guide plates are spaced and arranged in parallel.

[0012] In some embodiments of the utility model, the notch groove has a notch concave from the top end of the cylindrical shell, the plastic elastic buckle has a clamping tongue for clamping in the notch, and the clamping tongue is located at the top of the guide plate.

[0013] In some embodiments of the utility model, the cylindrical shell is a cylindrical shell, and the number of notch grooves is two, and the two notch grooves are symmetrically arranged relative to the central axis of the cylindrical shell.

[0014] In some embodiments of the utility model, the blade cover includes a bottom plate, opposite first and second side walls arranged on the bottom plate, and opposite third and fourth side walls arranged on the bottom plate, the number of clamping hooks is two, and the two clamping hooks are arranged on the third and fourth side walls respectively.

[0015] In some embodiments of the utility model, the two clamping hooks are part of the third and fourth side walls respectively, and the height of the first and second side walls is less than the height of the third and fourth side walls.

[0016] According to another aspect of the present application, an ice drill is also provided, which includes the blade protection structure for the ice drill bit as any one of the above embodiments.

[0017] The blade protection structure for the ice drill bit disclosed by the above embodiments of the application is characterized in that the blade is fixed on the blade support, the blade cover has a blade accommodating groove, and the blade cover and the blade fixing seat are detachably connected through the hook and slot structure.

[0018] In addition, based on the notch groove on the cylindrical shell and the plastic elastic buckle on the blade cover, the blade cover can be quickly disassembled, and the deformation of the spiral blade on the drill rod is further prevented, thereby prolonging the service life of the ice drill bit.

[0019] Additional advantages, objects, and features of the present application will be set forth in part in the following description taken in conjunction with the accompanying drawings, and will become apparent to those skilled in the art upon study of the following detailed description when taken in conjunction with the drawings in which:

[0020] Those skilled in the art will understand that the objects and advantages of the present application are not limited to the above specific description, and the above and other objects of the present application can be more clearly understood according to the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the present application, form a part of the present application, and do not constitute a limitation of the present application. The components in the drawings are not drawn to scale, but are only used to illustrate the principles of the present application. In order to facilitate the illustration and description of some parts of the present application, the corresponding parts in the drawings can be enlarged, i.e. become larger than other components in the exemplary device actually manufactured according to the present application. In the drawings:

[0022] Figure 1 The structure of the blade fixing seat of the present application is shown in the structure diagram.

[0023] Figure 2 The structure of the blade fixing seat of the present application is shown in the structure diagram.

[0024] Figure 3 The structure of the blade fixing seat of the present application is shown in the structure diagram.

[0025] Figure 4 The structure of the blade fixing seat of the present application is shown in the structure diagram.

[0026] Figure 5A top view of the blade fixing seat according to an embodiment of the present application.

[0027] Figure 6 A bottom view of the blade fixing seat according to an embodiment of the present application.

[0028] Figure 7 A structure schematic view of the blade guard according to an embodiment of the present application.

[0029] Figure 8 A front view of the blade guard according to an embodiment of the present application.

[0030] Figure 9 A side view of the blade guard according to an embodiment of the present application.

[0031] Figure 10 A top view of the blade guard according to an embodiment of the present application.

[0032] Figure 11 A bottom view of the blade guard according to an embodiment of the present application.

[0033] Reference signs:

[0034] blade fixing seat 100 blade guard 200 fixing part 110 cylindrical shell 121 connecting piece 122 blade support 123 notch 131 plastic elastic buckle 210 guide plate 211 slope abutting surface 212 notch 141 clamping tongue 213 bottom plate 220 first side wall 231 second side wall 232 third side wall 233 fourth side wall 234 spiral blade 300 blade 400 DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the embodiments and drawings. Herein, the illustrative embodiments of the present application and the description thereof are used to explain the present application, but not as a limitation of the present application.

[0036] Herein, it also needs to be explained that, in order to avoid the present application being obscured by unnecessary details, only the structures and / or processing steps closely related to the scheme according to the present application are shown in the drawings, and other details not closely related to the present application are omitted.

[0037] It should be emphasized that the term "comprises / comprising" as used herein means the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.

[0038] It should be noted that, in the present specification, the terms "left", "right", and the like are used in relation to the orientation shown in the drawings. The term "connected" is used herein to mean either a direct connection, an indirect connection via intervening items, or an indirect connection through other items. A direct connection is one in which there are no intervening material elements present. An indirect connection is one in which other intervening elements are present.

[0039] Embodiments of the present application will be described below with reference to the accompanying drawings. In the drawings, like reference numerals designate like or similar parts.

[0040] Figure 1 For the use of the blade protection structure for the ice drill bit of an embodiment of the present application, a reference diagram is shown as Figure 1 The blade protection structure for the ice drill bit includes a blade fixing seat 100 and a blade cover 200.

[0041] The blade fixing seat 100 includes a fixing seat body and a fixing portion 110. The fixing portion 110 is located at the middle part of the fixing seat body and is used to be connected with a drill rod. The fixing seat body includes a cylindrical shell 121, a connecting piece 122, and a blade support 123. The connecting piece 122 connects the cylindrical shell 121 and the fixing portion 110. The blade support 123 is arranged at the end of the cylindrical shell 121 away from the drill rod and is used to support a blade 400. The blade cover 200 has a blade accommodating groove. The blade cover 200 is detachably connected with the blade fixing seat 100 through a hook and slot structure. In the connected state of the blade cover 200 and the blade fixing seat 100, the blade 400 is located in the blade accommodating groove.

[0042] In the blade fixing seat 100 shown in Figure 2 The fixing portion 110 is in a regular hexagonal prism structure. The fixing portion 110 is sleeve-shaped and is used to be sleeved on the bottom end of the drill rod, so as to realize the connection of the blade fixing seat 100 and the drill rod. Specifically, the fixing seat body is mainly used to support the blade 400 and to be connected with the blade cover 200. As shown in Figure 6 The cylindrical shell 121 of the fixing seat body is connected with the fixing portion 110 as a whole through the connecting piece 122. The blade support 123 is specifically arranged at the end of the cylindrical shell 121 away from the drill rod (e.g., the top end as shown in Figure 3 Exemplarily, the fixing seat body and the fixing portion 110 can be an integral structure. That is, the blade fixing seat 100 as a whole can be processed by an integral molding processing method.

[0043] Figure 7The structure diagram of the guard cover 200 of an embodiment of the present application is shown in the figure. The guard cover 200 has a concave blade accommodating groove for accommodating the blade 400, thereby ensuring better protection of the blade 400 on the ice drill bit. In the above embodiment, the connection between the guard cover 200 and the blade fixing seat 100 is achieved through the snap hook and slot structure. This connection structure not only enables quick disassembly and assembly of the guard cover 200, but also ensures the stability of the connection between the guard cover 200 and the blade fixing seat, thereby avoiding damage to the blade 400 or injury to the personnel due to the falling of the guard cover 200. Moreover, the guard cover 200 of this structure does not need to rely on other auxiliary connecting members such as a hoop rope, a rubber strip, a binding rope, etc., thereby facilitating the operation when the guard cover is installed and disassembled, and this structure does not cause deformation of the spiral blade 300, thereby prolonging the service life of the ice drill bit.

[0044] For example, the snap hook in the snap hook and slot structure is located on one of the blade fixing seat 100 and the guard cover 200, and correspondingly, the slot in the snap hook and slot structure is located on the other one of the blade fixing seat 100 and the guard cover 200. For example, the snap hook in the snap hook and slot structure is located on the guard cover 200, and the slot in the snap hook and slot structure is located on the cylindrical shell 121. It can be understood that this arrangement is only an example, and in other embodiments, the snap hook can be arranged on the blade fixing seat 100, and the slot can be arranged on the guard cover 200.

[0045] When the slot is located on the blade fixing seat 100, and the snap hook is located on the guard cover 200, the slot is a notch groove 131 concave from the outer side wall of the cylindrical shell 121, and the groove depth of the notch groove 131 gradually increases from bottom to top along the height direction of the cylindrical shell 121. As shown in Figure 4 and Figure 5 The notch groove 131 is concave from the outer side wall of the cylindrical shell 121 towards the center line thereof, i.e., the wall thickness at the notch groove 131 is smaller than the wall thickness at other positions on the cylindrical shell 121, and as can be seen from the figure, the groove penetrates through the height direction of the cylindrical shell 121. In addition, as can be seen from Figure 2 , the depth of the groove gradually increases from bottom to top.

[0046] Further, the snap hook is a plastic elastic buckle 210, and the plastic elastic buckle 210 has a guide plate 211 for cooperating with the notch groove 131, the guide plate 211 has a slope abutment surface 212 for cooperating with the groove bottom of the notch groove 131, and the slope abutment surface 212 gradually inclines inward from bottom to top along the height direction of the guard cover 200. As shown in Figure 7 and Figure 10As shown, the guide plate 211 is located on the inner side of the side wall of the blade guard 200. The slope contact surface 212 of the guide plate 211 is an inclined surface. When the blade guard 200 is connected to the blade fixing seat 100, the slope contact surface 212 on the guide plate 211 contacts the bottom of the notch groove 131. When the blade guard 200 is disassembled or installed, the blade guard 200 often needs to move along the height direction of the blade fixing seat 100. At this time, the guide plate 211 plays a guiding role, so that the plastic elastic buckle 210 can better cooperate with the notch groove 131. In this embodiment, the plastic elastic buckle 210 and the notch groove 131 form a hook and slot structure. The plastic elastic buckle 210 is an elastically deformable part. Therefore, when the blade cover 200 is installed on the blade holder or removed from the blade holder 100, the guide plate 211 on the plastic elastic buckle 210 and its elastic deformation function can achieve the engagement and disengagement of the plastic elastic buckle 210 and the notch groove 131. Optionally, the plastic elastic buckle 210 can be made of PA66 nylon. It is understood that the material of the plastic elastic buckle 210 listed in this embodiment is only an example. In other embodiments, the plastic elastic buckle 210 can also be made of other materials. To ensure a better fit between the plastic elastic buckle 210 and the notch groove 131, it is sufficient to ensure that the material used for the plastic elastic buckle 210 can achieve a certain degree of micro-deformation.

[0047] Furthermore, the plastic elastic buckle 210 may have two guide plates 211, which are spaced apart and arranged in parallel. Figure 10 As shown, the two guide plates 211 on each plastic elastic buckle 210 are symmetrical with respect to the center plane of each plastic elastic buckle 210. It can be understood that the provision of two parallel guide plates 211 on the plastic elastic buckle 210 in this embodiment is only an example. Each plastic elastic buckle 210 may also be provided with only one guide plate 211, or more guide plates 211 may be provided on each plastic elastic buckle 210.

[0048] like Figure 2 As shown, the notch groove 131 on the blade holder 100 has a notch 141 recessed from the top end of the cylindrical housing 121; as Figure 7As shown, the plastic elastic buckle 210 has a clamping tongue 213 for clamping in the notch 141, and the clamping tongue 213 is located at the top of the guide plate 211. When installing the blade cover 200, first align the blade accommodating groove of the blade cover 200 with the blade 400, and move the blade cover 200 upwards along the blade fixing seat 100; during the movement of the blade cover 200, the guide plate 211 of the plastic elastic buckle 210 on the blade cover 200 is guided by the notch groove 131, and during the movement of the blade cover 200, the clamping tongue 213 of the plastic elastic buckle 210 will be slightly deformed due to the abutment with the groove bottom of the notch groove 131, and after the blade cover 200 is moved to the position, the clamping tongue 213 of the plastic elastic buckle 210 will be deformed due to the elastic deformation characteristics of the material thereof, and the clamping tongue 213 is clamped on the notch 141 of the notch groove 131, thereby realizing the reliable connection of the blade cover 200 and the blade fixing seat 100. When disassembling the blade cover 200, the plastic elastic buckle 210 on the blade cover 200 is correspondingly pried, so that the clamping tongue 213 of the plastic elastic buckle 210 is separated from the notch 141 of the notch groove 131, and then the blade cover 200 is moved downwards, so that the blade cover 200 is separated from the blade fixing seat; when the blade cover 200 is moved downwards, the guide plate 211 on the plastic elastic buckle 210 also plays a guiding role. From Figure 2 and Figure 7 It can be seen that the notch 141 of the notch groove 131 is located at the top of the blade fixing seat 100, and the clamping tongue 213 of the plastic elastic buckle 210 is also located at the top of the blade cover 200.

[0049] Further, the cylindrical shell 121 is a cylindrical shell 121, the number of the notch groove 131 is two, and the two notch grooves 131 are symmetrically arranged relative to the center axis of the cylindrical shell 121. In this embodiment, the shape of the blade fixing seat 100 is circular, and the two notch grooves 131 can also be considered to be arranged at an interval of 180 degrees along the circumference of the blade fixing seat 100. In order to better cooperate the clamping hooks on the blade cover 200 with the clamping grooves on the blade fixing seat 100, correspondingly, two plastic elastic buckles 210 can also be arranged on the blade cover 200, as shown in Figure 8 and Figure 11 It can be seen that the two plastic elastic buckles 210 are arranged at an interval of 180 degrees along the outer periphery of the blade cover 200.

[0050] In some embodiments of the utility model, the blade cover 200 includes a bottom plate 220, opposite first and second side walls 231 and 232 arranged on the bottom plate 220, and opposite third and fourth side walls 233 and 234 arranged on the bottom plate 220, the number of the clamping hooks is two, and the two clamping hooks are arranged on the third and fourth side walls 233 and 234 respectively. As shown in Figure 7 , Figure 10And Figure 11 As shown in the figure, the blade guard 200 is generally rectangular in shape, and the blade accommodating groove is surrounded by the first side wall 231, the second side wall 232, the third side wall 233 and the fourth side wall 234. The first side wall 231 and the second side wall 232 can be understood as the front side wall and the rear side wall of the blade guard 200, and the third side wall 233 and the fourth side wall 234 can be understood as the left side wall and the right side wall of the blade guard 200. At this time, the two clamps are located on the left side wall and the right side wall respectively.

[0051] Further, the two clamps are part of the third side wall 233 and the fourth side wall 234 respectively, and the height of the first side wall 231 and the second side wall 232 is less than the height of the third side wall 233 and the fourth side wall 234. As shown in the figure, Figure 7 As shown in the figure, the front side wall and the rear side wall of the blade guard 200 are lower than the left side wall and the right side wall, which can facilitate the installation and disassembly of the blade guard 200. In addition, in this embodiment, the two clamps are part of the left side wall and the right side wall, that is, the clamps are integrated with the side walls; when the clamps are plastic elastic buckles 210 made of PA66 nylon material, the bottom plate 220 and the side walls of the blade guard 200 can also be made of the same material at this time, and the blade guard 200 as a whole can be processed by integral molding.

[0052] In addition, as shown in the figure, Figure 9 The first side wall 231 and the second side wall 232 of the blade guard 200 can be inclined side walls, that is, the distance between the first side wall 231 and the second side wall 232 gradually increases from bottom to top along the height direction of the blade guard 200, which can be understood as that the blade accommodating groove of the blade guard 200 gradually expands from bottom to top. This structure not only facilitates the installation and disassembly of the blade guard 200, but also facilitates the ejection of the blade guard 200 during processing.

[0053] As can be seen from the above embodiments, the blade protection structure for the ice drill bit of the present application not only ensures the stability of the connection between the blade guard and the blade fixing seat, but also provides better protection for the blade based on the blade accommodating groove on the blade guard. In addition, when the blade guard is fixed, the tension on the spiral blade of the ice drill bit is avoided, thereby preventing the deformation of the spiral blade. Therefore, the blade protection structure for the ice drill bit of the present application is not only convenient to disassemble, simple in structure, more beautiful, but also improves the safety of the blade.

[0054] Correspondingly, the present application also provides an ice drill comprising the blade protection structure for the ice drill bit as any one of the above embodiments.

[0055] Features described and / or illustrated with respect to one implementation can be used in the same manner or in a similar manner in one or more other implementations and / or in combination with or in place of features of other implementations.

[0056] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the embodiments of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A blade protection structure for ice drill bits, characterized in that, The blade protection structure includes: A blade holder includes a holder body and a fixing part. The fixing part is located in the middle of the holder body and is used to connect with a drill rod. The holder body includes a cylindrical shell, a connector, and a blade support. The connector connects the cylindrical shell and the fixing part. The blade support is located at the end of the cylindrical shell away from the drill rod and is used to support the blade. The blade cover has a blade receiving groove. The blade cover and the blade fixing seat are detachably connected by a hook and slot structure. When the blade cover and the blade fixing seat are connected, the blade is located in the blade receiving groove.

2. The blade protection structure for ice drill bits according to claim 1, characterized in that, The hook of the hook and slot structure is located on the knife cover, and the slot of the hook and slot structure is located on the cylindrical shell.

3. The blade protection structure for ice drill bits according to claim 2, characterized in that, The slot is a recessed groove that extends from the outer side wall of the cylindrical shell, and the depth of the recess gradually increases from bottom to top along the height direction of the cylindrical shell.

4. The blade protection structure for ice drill bits according to claim 3, characterized in that, The hook is a plastic elastic buckle, and the plastic elastic buckle has a guide plate for engaging with the notch groove. The guide plate has a sloped contact surface for engaging with the bottom of the notch groove. The sloped contact surface gradually slopes inward from bottom to top along the height direction of the blade cover.

5. The blade protection structure for ice drill bits according to claim 4, characterized in that, The number of guide plates is two, and the two guide plates are spaced apart and arranged in parallel.

6. The blade protection structure for ice drill bits according to claim 4, characterized in that, The notch groove has a notch recessed from the top of the cylindrical shell, and the plastic elastic buckle has a latch for engaging in the notch, the latch being located at the top of the guide plate.

7. The blade protection structure for ice drill bits according to claim 4, characterized in that, The cylindrical shell is a cylindrical shell, and the number of notches and grooves is two, which are symmetrically arranged with respect to the central axis of the cylindrical shell.

8. The blade protection structure for ice drill bits according to claim 7, characterized in that, The blade guard includes a base plate, a first and a second side wall disposed on the base plate, and a third and a fourth side wall disposed on the base plate. The number of hooks is two, and the two hooks are respectively disposed on the third and fourth side walls.

9. The blade protection structure for ice drill bits according to claim 8, characterized in that, The two hooks are respectively part of the third sidewall and the fourth sidewall, and the height of the first sidewall and the second sidewall is less than the height of the third sidewall and the fourth sidewall.

10. An ice diamond, characterized in that, The ice drill includes a blade protection structure for ice drill bits as described in any one of claims 1 to 8.

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