CN219855021U - Explosion-proof limit device of timber drilling through-hole - Google Patents
Explosion-proof limit device of timber drilling through-hole Download PDFInfo
- Publication number
- CN219855021U CN219855021U CN202321282611.0U CN202321282611U CN219855021U CN 219855021 U CN219855021 U CN 219855021U CN 202321282611 U CN202321282611 U CN 202321282611U CN 219855021 U CN219855021 U CN 219855021U
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- 238000005553 drilling Methods 0.000 title claims abstract description 87
- 239000000463 material Substances 0.000 claims abstract description 40
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 abstract description 12
- 238000007906 compression Methods 0.000 abstract description 12
- 238000004880 explosion Methods 0.000 abstract description 12
- 239000002023 wood Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Drilling And Boring (AREA)
Abstract
The utility model discloses a device for preventing explosion of a through hole of a timber drill, which comprises a base assembly and a drilling module, wherein a material conveying plate is arranged in the middle of the upper part of the base assembly, a drilling module backing plate and a material pushing cylinder backing plate are respectively arranged on two sides of the base assembly, a material pushing cylinder is arranged above the material pushing cylinder backing plate, a compression cylinder support is arranged above the material conveying plate, a compression cylinder is arranged in the middle of the compression cylinder support, a spring steel plate is arranged on the inner side of the lower part of the compression cylinder support, a drilling module is arranged above the drilling module backing plate, when the device is used, a positioning cylinder piston rod extends out, the material pushing plate sequentially pushes two workpieces to be drilled to enter a station of the drilled workpiece and a station of the semi-drilled workpiece respectively and is compressed, a main shaft sliding plate drives a drilling tool to drill through the surfaces of the drilled workpiece body and the semi-drilled workpiece, the drilled workpiece slides out along a discharge chute, the material pushing plate pushes the next workpiece to be drilled, and one-time processing cycle is completed.
Description
Technical Field
The utility model relates to the technical field of wood processing, in particular to a device for drilling through holes and preventing explosion edges of timber.
Background
Compared with the traditional manual mode for processing the wood, the wood processing machine has the advantages that the automation degree of wood processing is high, higher processing precision and production efficiency can be achieved, meanwhile, the wood loss can be effectively reduced, and the wood processing machine is safer and more reliable, so that the wood processing machine is widely applied.
Because the material characteristics and the limitation of processing mode of timber itself, when boring the through-hole, because there is not effectual bearing in timber hole site below, when about to bore, the shearing force that timber edge received is far lower than the axial extrusion force that the drill bit cutting edge passed, so can form irregular epidermis tearing, burst or breach in certain scope, influence aesthetic property even structural strength greatly, at present in order to avoid this kind of problem, generally need to bore a concentric blind hole in advance at the opposite of timber, in order to do so, not only greatly increased the structure complexity and the cost of equipment, the precious design space has been crowded, in order to prevent interfering in addition, still need the timesharing to bore two holes just, the machining efficiency obviously reduces, be difficult to adapt to the occasion of modern large batch automatic continuous operation.
Disclosure of Invention
The utility model mainly aims to provide a device for drilling a through hole and preventing an explosion edge by using wood, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a timber bores explosion-proof limit device of through-hole, includes base subassembly and drilling module, base subassembly top middle part is fixed to be equipped with the material conveying board, material conveying board one side below is fixed to be equipped with the location steel pipe to with location steel pipe homonymy parallel and level, base subassembly top one side is fixed to be equipped with drilling module backing plate, base subassembly top opposite side is fixed to be equipped with the pushing cylinder backing plate, pushing cylinder backing plate top is fixed to be equipped with the pushing cylinder, pushing cylinder one side is fixed to be equipped with the pushing block, pushing block opposite side is equipped with half and bores through the work piece, half bores through the work piece top and is equipped with the work piece that waits to bore, wait to bore the work piece outside and be equipped with the feed chute, feed chute lower part is fixed to be located in material conveying board opposite side top is equipped with the compression cylinder support, half bores through work piece one side is equipped with the blotter, half bores through work piece and is equipped with the blotter that compresses tightly the cylinder support, half bores the work piece, half bores through work piece one side is equipped with the steel sheet, the steel sheet is equipped with the cylinder end of compression spring, the end of cylinder support is equipped with the compression spring, the end of drilling cylinder is equipped with the end of compression spring, the end of drilling module is equipped with the end of compression spring is equipped with the cylinder top down, the end of compression spring is equipped with the compression pad, the drilling module lower part is equipped with drilling module mounting panel, drilling module mounting panel is fixed to be located drilling module backing plate top, drilling module mounting panel middle section both sides top is fixed to be equipped with linear guide, drilling module mounting panel one end hole internal fixation is equipped with the cutter and feeds the cylinder, drilling module mounting panel other end both sides are fixed to be equipped with the location cylinder mounting panel, location cylinder mounting panel hole internal fixation is equipped with the location cylinder, location cylinder piston rod front end is fixed to be equipped with limit stop, the linear guide top is equipped with the ball slider, the fixed main shaft slide that is equipped with in ball slider top, the fixed motor clamp that is equipped with in main shaft slide top, the fixed spindle motor that is equipped with in motor one end, base subassembly top one side is fixed and is equipped with automatically controlled box, the fixed location inserts that is equipped with in material conveying board upper portion, material conveying board recess lateral wall is located to location insert one side parallel and level.
Preferably, the fixed lower margin that is equipped with of base subassembly lower part, the fixed frame that is equipped with in lower margin top, the fixed long stay tube and the short stay tube that is equipped with respectively in frame middle part, long stay tube and short stay tube slope are located between the frame stand, the fixed blown down tank that is equipped with in base subassembly one side middle part, one side that the locating steel pipe kept away from pushing away the material cylinder is fixed to blown down tank one side, the fixed oblique top of locating short stay tube in blown down tank middle part.
Preferably, the electric control box is electrically connected with the pressing cylinder, the pushing cylinder, the cutter feeding cylinder, the positioning cylinder and the spindle motor.
Preferably, the avoidance hole in the middle of the limit stop is concentric with the drilling tool.
Compared with the prior art, the utility model has the following beneficial effects: before use, the work piece to be drilled is put into the feed chute to be piled up, when in use, the electric control box sends out a control instruction, the piston rod of the positioning cylinder stretches out to push the limit stop to advance until the lower part of the limit stop abuts against the side surface of the positioning steel pipe far away from the pushing cylinder, the piston rod of the pushing cylinder stretches out, the first work piece to be drilled at the lowest part of the feed chute is pushed to advance towards the drilling module until the upper part of the limit stop abuts against the upper part of the limiting stop, the spring steel plate pushes the work piece to be drilled from the side surface to the opposite side surface of the groove in the middle part of the feed plate in the pushing process, the piston rod of the pressing cylinder stretches out, the buffer pad presses the first work piece to be drilled on the work piece to be drilled downwards, the piston rod of the pushing cylinder retracts, the work piece to be drilled at the lowest end in the feed chute falls down, the piston rod of the pushing cylinder stretches out again to push the work piece to be drilled halfway, and the first workpiece to be drilled on the drilled workpiece station is abutted against the opposite side surface of the material conveying plate groove by a spring steel plate in the positioning process, the spindle motor drives the drilling tool to rotate, a tool feeding cylinder piston rod extends out to push a spindle sliding plate to advance, the drilling tool passes through the middle part of a limit stop to avoid holes, the first workpiece to be drilled on the drilled workpiece station is drilled, the surface of the semi-drilled workpiece is drilled, the tool feeding cylinder returns to drive the drilling tool to reset, the material pushing block continuously forwards pushes the semi-drilled workpiece and the drilled workpiece to enable the semi-drilled workpiece to enter the drilled workpiece station, the previous drilled workpiece falls into the material conveying plate along the side surface of the positioning steel pipe from the upper side of the material conveying plate and slides down along the inclined plane to complete one working cycle, then the positioning cylinder piston rod extends out again, and the cycle is repeated, and automatic drilling processing is realized, because the side that has drilled through the work piece and kept away from drilling cutter is supported tightly half drilling through work piece all the time during processing, the cutter bores instantaneous axial extrusion force and is transmitted to half drilling through work piece, so bore the face of wearing and can keep higher smooth finish to effectively eliminated the condition of bursting the edge, and half drilling through work piece surface has also drilled shallow hole in advance, can provide the direction for next drilling, under limit stop and spring steel sheet's combined action, guaranteed the uniformity of drilling position, long stay tube and short stay tube slope setting are also convenient for clear up the laying dust, the device structure scientific and reasonable uses safe and reliable, provide very big help for people.
Drawings
FIG. 1 is a schematic axial view of a front structure of a device for drilling through holes and preventing explosion of wood according to the present utility model;
FIG. 2 is a schematic axial view of the rear structure of a device for drilling through holes and preventing explosion of timber according to the present utility model;
FIG. 3 is a schematic view of a middle section of a device for drilling through holes and preventing explosion edges by using wood according to the utility model;
fig. 4 is a schematic diagram of a drilling module structure of a device for drilling through holes and preventing explosion edges by using wood according to the utility model;
fig. 5 is a schematic structural view of a base assembly of a device for drilling through holes and preventing explosion of timber according to the present utility model;
fig. 6 is a schematic structural diagram of a compression cylinder bracket of the device for drilling through holes and preventing explosion of timber;
fig. 7 is a schematic diagram of the structure of a spring steel plate of the device for drilling through holes and preventing explosion of edges by using timber.
In the figure: 1. the drilling machine comprises a base assembly, 101, an outer frame, 102, a ground foot, 103, a long supporting tube, 104, a short supporting tube, 105, a discharge chute, 106, a pushing cylinder backing plate, 107, a drilling module backing plate, 108, a material conveying plate, 109, a positioning insert, 110, a positioning steel tube, 2, a pushing block, 3, an electric control box, 4, a compacting cylinder, 5, a buffer pad, 6, a feed chute, 7, a pushing cylinder, 8, a compacting cylinder bracket, 9, a drilling module, 901, a spindle slide plate, 902, a motor clamp, 903, a ball slide block, 904, a linear guide rail, 905, a spindle motor, 906, a drilling tool, 907, a tool feeding cylinder, 908, a drilling module mounting plate, 909, a positioning cylinder mounting plate, 910, a positioning cylinder, 911, a limit stop, 10, a spring steel plate, 11, a drilled workpiece, 12, a workpiece to be drilled, 13 and a semi-drilled workpiece.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-7, a device for preventing explosion of a timber through hole comprises a base component 1 and a drilling module 9, wherein a material conveying plate 108 is fixedly arranged in the middle of the upper part of the base component 1, a positioning steel pipe 110 is fixedly arranged below one side of the material conveying plate 108 and is flush with the same side of the positioning steel pipe 110, a drilling module backing plate 107 is fixedly arranged on one side of the upper part of the base component 1, a pushing cylinder backing plate 106 is fixedly arranged on the other side of the upper part of the base component 1, a pushing cylinder 7 is fixedly arranged above the pushing cylinder 106, a pushing block 2 is fixedly arranged on one side of the pushing block 7, a semi-drilling workpiece 13 is arranged on the other side of the pushing block 2, a workpiece 12 to be drilled is arranged above the semi-drilling workpiece 13, a feeding groove 6 is arranged outside the workpiece 12 to be drilled, the lower part of the feeding groove 6 is fixedly arranged above one side of the material conveying plate 108, a compressing cylinder bracket 8 is fixedly arranged above the other side of the material conveying plate 108, a drilled workpiece 11 is arranged on one side of the semi-drilling workpiece 13, the side of the drilled-through workpiece 11 far away from the pushing cylinder 7 is flush with the side of the conveying plate 108 far away from the pushing cylinder 7, the semi-drilled-through workpiece 13 and the drilled-through workpiece 11 are respectively arranged in the middle groove above the conveying plate 108, a compressing cylinder bracket 8 is arranged above the drilled-through workpiece 11, the lower end of the compressing cylinder bracket 8 is fixedly arranged above the middle part of the base assembly 1, a compressing cylinder 4 is fixedly arranged in the middle of the compressing cylinder bracket 8, a buffer cushion 5 is fixedly arranged at the front end of a piston rod of the compressing cylinder 4, the drilled-through workpiece 11 is arranged below the buffer cushion 5, a spring steel plate 10 is fixedly arranged on the inner side of the lower side of one side of the compressing cylinder bracket 8, elastic steel plates at two ends of the spring steel plate 10 are respectively compressed on one side of the drilled-through workpiece 11 and the semi-drilled-through workpiece 13, the other side of the drilled-through workpiece 11 and the semi-drilled-through workpiece 13 are tightly adhered to the inner wall of one side of the middle groove of the conveying plate 108, the drilling module 9 is fixedly arranged above the drilling module base plate 107, the drilling module mounting plate 908 is arranged at the lower part of the drilling module 9, the drilling module mounting plate 908 is fixedly arranged above the drilling module base plate 107, the linear guide rail 904 is fixedly arranged above two sides of the middle section of the drilling module mounting plate 908, the cutter feeding cylinder 907 is fixedly arranged in one end hole of the drilling module mounting plate 908, the positioning cylinder mounting plate 909 is fixedly arranged at two sides of the other end of the drilling module mounting plate 908, the positioning cylinder 910 is fixedly arranged in the hole of the positioning cylinder mounting plate 909, the limit stop 911 is fixedly arranged at the front end of a piston rod of the positioning cylinder 910, the ball sliding block 903 is arranged above the linear guide rail 904, the spindle sliding plate 901 is fixedly arranged above the ball sliding block 903, the motor clamp 902 is fixedly arranged above the spindle sliding plate 901, the spindle motor 905 is fixedly arranged in the middle of the motor clamp 902, the drilling cutter 906 is fixedly arranged at one end of the spindle motor 905, the electric control box 3 is fixedly arranged at one side of the upper part of the base assembly 1, the positioning insert 109 is fixedly arranged at the upper part of the material conveying plate 108, and one side of the positioning insert 109 is flush with the groove side of the material conveying plate 108.
The lower part of the base component 1 is fixedly provided with a lower margin 102, an outer frame 101 is fixedly arranged above the lower margin 102, a long supporting pipe 103 and a short supporting pipe 104 are respectively fixedly arranged in the middle of the outer frame 101, the long supporting pipe 103 and the short supporting pipe 104 are obliquely arranged between the upright posts of the outer frame 101, the middle part of one side of the base component 1 is fixedly provided with a discharge chute 105, one side of the discharge chute is fixedly arranged on one side of a positioning steel pipe 110, which is far away from the pushing cylinder 7, and the middle part of the discharge chute 105 is fixedly arranged above the short supporting pipe 104.
The electronic control box 3 is electrically connected with the pressing cylinder 4, the pushing cylinder 7, the cutter feeding cylinder 907, the positioning cylinder 910 and the spindle motor 905.
The center relief hole of the limit stop 911 is concentric with the drilling tool 906.
Before use, the utility model is a device for preventing explosion of a through hole of a timber, a workpiece 12 to be drilled is put into a feed chute 6 to be piled up, when the device is used, an electric control box 3 sends a control command, a piston rod of a positioning cylinder 910 stretches out to push a limit stop 911 to advance until the lower part of the limit stop 911 abuts against the side surface of a positioning steel pipe 110, which is far away from a pushing cylinder 7, to stop, the piston rod of the pushing cylinder 7 stretches out, a pushing block 2 pushes a first workpiece 12 to be drilled at the lowest part of the feed chute 6 to advance towards a drilling module 9 until the upper part of the limit stop 911 abuts against a station of the workpiece 11 to be drilled, a spring steel plate 10 pushes the workpiece 12 to be drilled from the side surface to the opposite side surface of a groove in the middle part of a feed chute 108 in the pushing process, the piston rod of the pressing cylinder 4 stretches out, a buffer cushion 5 presses the first workpiece 12 to be drilled on the station of the workpiece 11 downwards, the piston rod of the pushing cylinder 7 retracts, the workpiece 12 to be drilled at the lowest end in the feed chute 6 falls, the piston rod of the pushing cylinder 7 stretches out again to push the workpiece 12 to be drilled to the station of the semi-drilled workpiece 13 and abuts against the first workpiece 12 to be drilled on the station of the semi-drilled workpiece 11, the spring steel plate 10 abuts against the opposite side surface of the groove of the feed conveying plate 108 from the side surface in the positioning process, the spindle motor 905 drives the drilling tool 906 to rotate, the piston rod of the tool feeding cylinder 907 stretches out to push the spindle slide plate 901 to advance, the drilling tool 906 passes through the middle avoidance hole of the limit stop 911 to drill the first workpiece 12 to be drilled on the station of the semi-drilled workpiece 11 and drill the surface of the semi-drilled workpiece 13, the tool feeding cylinder 907 is retracted to drive the drilling tool 906 to reset, the pushing block 2 continues to push the semi-drilled workpiece 13 and the drilled workpiece 11 forwards to enable the semi-drilled workpiece 13 to enter the station of the drilled workpiece 11, the previous drilled workpiece 11 falls into the discharge chute 105 from the upper part of the material conveying plate 108 along the side surface of the positioning steel pipe 110 and slides down along the inclined plane to complete one working cycle, then the piston rod of the positioning cylinder 910 stretches out again, and the piston rod is circularly reciprocated to realize automatic drilling, and the drilled workpiece 11 is always abutted against the semi-drilled workpiece 13 at the side far away from the drilling tool 906 during processing, and the instantaneous axial extrusion force of the drilling of the tool is transferred to the semi-drilled workpiece 13, so that the drilling surface can keep higher smoothness, thereby effectively eliminating the situation of edge burst, and the surface of the semi-drilled workpiece 13 is also pre-drilled with shallow holes, thereby providing guiding function for the next drilling, guaranteeing the consistency of drilling positions under the combined action of the limit stop 911 and the spring steel plate 10.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a timber bores explosion-proof limit device of through-hole, includes base subassembly (1) and drilling module (9), its characterized in that, base subassembly (1) top middle part is fixed to be equipped with material conveying board (108), material conveying board (108) one side below is fixed to be equipped with location steel pipe (110) to with location steel pipe (110) homonymy parallel and level, base subassembly (1) top one side is fixed to be equipped with drilling module backing plate (107), base subassembly (1) top opposite side is fixed to be equipped with and pushes away material cylinder backing plate (106), material pushing cylinder (7) are fixed to be equipped with in material pushing cylinder backing plate (106) top, material pushing cylinder (7) one side is fixed to be equipped with material pushing block (2), material pushing block (2) opposite side is equipped with half and bores work piece (13), half bores work piece (13) top is equipped with and waits to bore work piece (12) to bore, the work piece (12) outside is equipped with feed chute (6), feed chute (6) lower part is fixed to be located material conveying board (108) one side top, material pushing board (108) opposite side top is fixed to be equipped with and is pressed down support (8), half bores work piece (7) one side that has been kept away from material pushing cylinder (11), the drilling machine comprises a base component (1), a semi-drilling workpiece (13) and a drilled workpiece (11) are arranged in a middle groove above a conveying plate (108), a compressing air cylinder support (8) is arranged above the drilled workpiece (11), the lower end of the compressing air cylinder support (8) is fixedly arranged above the middle of the base component (1), a compressing air cylinder (4) is fixedly arranged in the middle of the compressing air cylinder support (8), a cushion pad (5) is fixedly arranged at the front end of a piston rod of the compressing air cylinder (4), a drilled workpiece (11) is arranged below the cushion pad (5), a spring steel plate (10) is fixedly arranged on the inner side of one side of the compressing air cylinder support (8), two ends of the spring steel plate (10) are respectively compressed and arranged on one side of the drilled workpiece (11) and one side of the semi-drilling workpiece (13), the other side of the drilled workpiece (11) is tightly attached to the inner wall of one side of the middle groove of the conveying plate (108), a drilling module (9) is fixedly arranged above a drilling module backing plate (107), a drilling module (908) is arranged at the lower part of the drilling module (9), a drilling module (908) is fixedly arranged on two sides of the drilling module (908) and the drilling module (908), the drilling module mounting plate (908) one end hole internal fixation is equipped with cutter feed cylinder (907), drilling module mounting plate (908) other end both sides are fixed and are equipped with location cylinder mounting plate (909), location cylinder mounting plate (909) downthehole fixed location cylinder (910) that is equipped with, location cylinder (910) piston rod front end is fixed to be equipped with limit stop (911), linear guide (904) top is equipped with ball slider (903), ball slider (903) top is fixed to be equipped with main shaft slide (901), main shaft slide (901) top is fixed to be equipped with motor clamp (902), motor clamp (902) middle part is fixed to be equipped with main shaft motor (905), main shaft motor (905) one end is fixed to be equipped with drilling cutter (906), base subassembly (1) top one side is fixed to be equipped with automatically controlled box (3), material conveying board (108) upper portion is fixed to be equipped with location insert (109), material conveying board (108) recess lateral wall is located to location insert (109) one side.
2. The timber through hole blast edge unit of claim 1, wherein: the base subassembly (1) lower part is fixed to be equipped with lower margin (102), lower margin (102) top is fixed to be equipped with frame (101), frame (101) middle part is fixed respectively to be equipped with long stay tube (103) and short stay tube (104), between frame (101) stand is located in long stay tube (103) and short stay tube (104) slope, base subassembly (1) one side middle part is fixed to be equipped with blown down tank (105), one side that push away from material cylinder (7) is fixed to locate positioning steel pipe (110) is located to blown down tank one side, short stay tube (104) oblique top is fixed to be located in blown down tank (105) middle part.
3. The timber through hole blast edge unit of claim 1, wherein: the electric control box (3) is electrically connected with the pressing cylinder (4), the pushing cylinder (7), the cutter feeding cylinder (907), the positioning cylinder (910) and the spindle motor (905).
4. The timber through hole blast edge unit of claim 1, wherein: the middle avoidance hole of the limit stop (911) is concentric with the drilling tool (906).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321282611.0U CN219855021U (en) | 2023-05-22 | 2023-05-22 | Explosion-proof limit device of timber drilling through-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321282611.0U CN219855021U (en) | 2023-05-22 | 2023-05-22 | Explosion-proof limit device of timber drilling through-hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219855021U true CN219855021U (en) | 2023-10-20 |
Family
ID=88371392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321282611.0U Active CN219855021U (en) | 2023-05-22 | 2023-05-22 | Explosion-proof limit device of timber drilling through-hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219855021U (en) |
-
2023
- 2023-05-22 CN CN202321282611.0U patent/CN219855021U/en active Active
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