Handheld ground drilling machine

Abstract

The utility model relates to a hand-held ground drilling machine. The hand-held ground drilling machine comprises a frame body; the driving part is mounted on the frame body; one end, in the first direction, of the drilling tool is mounted at the output end of the driving part; the fixing cylinder surrounds the periphery of the drilling tool, and the end, in the first direction, of the fixing cylinder is fixedly connected with the frame body; the outer circumferential surface of the abutting cylinder is in sliding connection with the inner circumferential surface of the fixed cylinder in the first direction, and the abutting cylinder partially extends out of the end, facing the ground, of the fixed cylinder; the two ends, in the first direction, of the first elastic piece are connected with the fixing cylinder and the abutting cylinder correspondingly, and the elastic force of the first elastic piece can make the end, extending out of the fixing cylinder, of the abutting cylinder abut against the ground in the first direction. When the handheld ground drilling machine is used for drilling holes in the ground, an operator is not prone to mistakenly touching a drilling tool rotating at a high speed, and the situation that the operator is in danger is effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of ground drills, and particularly to a handheld ground drill. Background Art

[0002] The field of geological engineering is based on natural science and earth science theories, mainly targeting geological surveys, general surveys and explorations of mineral resources, and engineering problems involved in the geological structures and geological backgrounds of major projects. It uses geology, geophysical and geochemical techniques, mathematical geological methods, remote sensing techniques, testing techniques, computer techniques, etc. as means to serve the leading engineering field of national economic construction. When conducting on-site geological analysis, surveyors often need to use a handheld ground drill to drill holes in the ground.

[0003] In the prior art, when using a handheld ground drill, the operator holds the handrail of the handheld ground drill and drives the drill tool to rotate through a driving member, so that the drill tool drills into the ground. However, during the process of using the handheld ground drill by the operator to drill holes in the ground, it is easy to accidentally touch the high-speed rotating drill tool, resulting in danger to the operator. Summary of the Utility Model

[0004] Based on this, in view of the problem in the prior art that during the process of using a handheld ground drill by an operator to drill holes in the ground, it is easy to accidentally touch the high-speed rotating drill tool, resulting in danger to the operator, it is necessary to provide a handheld ground drill.

[0005] A handheld ground drill, the handheld ground drill includes:

[0006] A frame body;

[0007] A driving member installed on the frame body;

[0008] A drill tool, one end of the drill tool along a first direction is installed at the output end of the driving member, and the other end of the drill tool along the first direction is used to drill into the ground, and the first direction is the length direction of the drill tool;

[0009] A fixed cylinder, the fixed cylinder surrounds the periphery of the drill tool, one end of the fixed cylinder along the first direction is fixedly connected to the frame body, and the other end faces the ground;

[0010] An abutting cylinder, the outer peripheral surface of the abutting cylinder is slidably connected to the inner peripheral surface of the fixed cylinder along the first direction, and a part of the abutting cylinder extends out of the end of the fixed cylinder facing the ground; and

[0011] A first elastic member, both ends of the first elastic member along the first direction are respectively connected to the fixed cylinder and the abutting cylinder, and the elastic force of the first elastic member can make the end of the abutting cylinder extending out of the fixed cylinder abut against the ground along the first direction.

[0012] In one embodiment, the fixed cylinder includes a fixed cylinder top wall and a fixed cylinder side wall, and the fixed cylinder side wall surrounds the periphery of the drilling tool; one end of the fixed cylinder side wall close to the frame body in the first direction is fixedly connected to the fixed cylinder top wall, and the outer peripheral surface of the abutting cylinder is slidably connected to the inner peripheral surface of the fixed cylinder side wall in the first direction; the drilling tool passes through the fixed cylinder top wall.

[0013] In one embodiment, the handheld ground drilling machine further includes: a sliding rod, a sliding sleeve, and a connecting rod; the length direction of the sliding rod is along the first direction, and one end of the sliding rod is fixedly connected to the fixed cylinder top wall; the sliding sleeve is sleeved on the sliding rod, and the sliding rod is slidably connected to the sliding sleeve in the first direction;

[0014] The first elastic member is sleeved on the sliding rod, one end of the first elastic member abuts against or is fixedly connected to the fixed cylinder top wall, and the other end of the first elastic member abuts against or is fixedly connected to the sliding sleeve; one end of the abutting cylinder close to the frame body is fixedly connected to the sliding sleeve through the connecting rod.

[0015] In one embodiment, the abutting cylinder includes a first cylinder and a second cylinder, and one end of the first cylinder is detachably connected to one end of the second cylinder; the outer peripheral surface of the first cylinder is slidably connected to the inner peripheral surface of the fixed cylinder in the first direction; at least a part of the second cylinder extends out of the end of the fixed cylinder facing the ground, the first cylinder is located at one end of the second cylinder close to the frame body; the outer diameters of the first cylinder and the second cylinder are the same.

[0016] In one embodiment, the abutting cylinder further includes a connecting component, and the connecting component includes: a plug rod, a mating rod, a guiding cylinder, a second elastic member, and a push rod;

[0017] The axial direction of the guiding cylinder is along the second direction, and the second direction is perpendicular to the first direction; one end of the guiding cylinder is fixedly connected to the inner peripheral surface of the first cylinder, and the other end faces the central axis of the first cylinder; the second elastic member is located in the guiding cylinder; one end of the second elastic member is fixedly connected to the bottom of the guiding cylinder, and one end of the push rod is located in the guiding cylinder and is fixedly connected to the other end of the second elastic member; the end of the push rod away from the second elastic member extends out of the guiding cylinder and is fixedly connected to one end of the plug rod;

[0018] The mating rod is fixedly connected to one end of the second cylinder close to the first cylinder, the mating rod is provided with a jack, and the opening of the jack faces the plug rod along the second direction; the elastic force of the second elastic member is used to drive the push rod to move along the second direction, so that the push rod can push the plug rod to enter the jack along the second direction.

[0019] In one embodiment, the connecting component further includes a back plate, which is fixedly connected to one end of the push rod extending out of the guiding cylinder; the insertion rod is fixedly connected to the back plate and is located on the side of the back plate facing away from the push rod; the back plate protrudes from the mating rod in the direction of approaching the frame body along the first direction.

[0020] In one embodiment, the first cylinder includes a first cylinder side wall and an annular bottom wall. The first cylinder side wall surrounds the periphery of the drill tool. The outer peripheral edge of the annular bottom wall is fixedly connected to one end of the first cylinder side wall away from the frame body. The inner peripheral edge of the annular bottom wall encloses a first through hole.

[0021] The second cylinder includes a second cylinder side wall and an annular top wall. The second cylinder side wall surrounds the periphery of the drill tool. The outer peripheral edge of the annular top wall is fixedly connected to one end of the second cylinder side wall close to the frame body. The inner peripheral edge of the annular top wall encloses a second through hole.

[0022] The annular top wall is arranged in contact with the annular bottom wall, and the mating rod is arranged on the annular top wall; the mating rod protrudes from the annular top wall and the annular bottom wall in the direction of approaching the frame body.

[0023] In one embodiment, the handheld ground drill further includes a spike portion. One end of the spike portion is connected to one end of the drill tool away from the driving member; the end of the spike portion facing away from the drill tool is a tip.

[0024] When the above-mentioned handheld ground drill is used for drilling the ground, one end of the drill tool away from the frame body in the first direction faces the ground. The drill tool is driven by the driving member to rotate around the axis in the first direction, so that the drill tool rotates at a high speed, and then the ground can be drilled. The fixed cylinder and the abutting cylinder are respectively sleeved on the periphery of the drill tool. The abutting cylinder partially extends out of the end of the fixed cylinder facing the ground. The elastic force of the first elastic member makes the end of the abutting cylinder extending out of the fixed cylinder abut against the ground along the first direction. Thus, the fixed cylinder and the abutting cylinder can play a role of enclosing around the drill tool, and further it is not easy for the operator to accidentally touch the high-speed rotating drill tool, effectively reducing the occurrence of dangerous situations for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of a handheld ground drill in one embodiment.

[0026] Figure 2 It is a sectional view of a handheld ground drill in one embodiment.

[0027] Figure 3 For Figure 2 A partial enlarged view of the connection part between the first cylinder and the second cylinder in

[0028] Explanation of the reference numerals in the drawings:

[0029] ZZ', the first direction; YY', the second direction;

[0030] 100, frame; 110, rod; 120, handrail;

[0031] 200, driving member;

[0032] 300, drilling tool; 310, spike part;

[0033] 400, fixing cylinder; 410, top wall of the fixing cylinder; 411, bearing; 420, side wall of the fixing cylinder;

[0034] 500, abutting cylinder; 510, first cylinder; 511, annular bottom wall; 512, side wall of the first cylinder; 520, second cylinder; 521, annular top wall; 522, side wall of the second cylinder; 530, connecting component; 531, inserting rod; 532, mating rod; 5321, inserting hole; 533, guiding cylinder; 534, second elastic member; 535, push rod; 536, back plate;

[0035] 600, first elastic member; 610, sliding rod; 620, sliding sleeve; 630, connecting rod. Detailed implementation manners

[0036] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that if there appear such terms as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0038] In addition, if the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0039] In this application, unless otherwise clearly specified and defined, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In this application, unless otherwise clearly specified and defined, if there is a description such as a first feature "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0042] Please refer to Figure 1 , an embodiment of this application provides a handheld ground drill. Referring again to Figure 2 , the handheld ground drill includes: a frame body 100, a driving member 200, a drilling tool 300, a fixing cylinder 400, an abutting cylinder 500, and a first elastic member 600.

[0043] The driving member 200 is installed on the frame body 100.

[0044] One end of the drill tool 300 along the first direction ZZ' is installed at the output end of the driving member 200, and the other end of the drill tool 300 along the first direction ZZ' is used to drill into the ground. The first direction ZZ' is the length direction of the drill tool 300. In actual use, the first direction ZZ' is along the vertical direction and perpendicular to the ground to be drilled.

[0045] The fixed cylinder 400 surrounds the periphery of the drill tool 300. One end of the fixed cylinder 400 along the first direction ZZ' is fixedly connected to the frame body 100, and the other end faces the ground.

[0046] The outer peripheral surface of the abutting cylinder 500 is slidably connected to the inner peripheral surface of the fixed cylinder 400 along the first direction ZZ', and a part of the abutting cylinder 500 extends out of one end of the fixed cylinder 400 facing the ground.

[0047] Both ends of the first elastic member 600 along the first direction ZZ' are respectively connected to the fixed cylinder 400 and the abutting cylinder 500. The elastic force of the first elastic member 600 can make one end of the abutting cylinder 500 extending out of the fixed cylinder 400 abut against the ground along the first direction ZZ'.

[0048] When the above-mentioned hand-held ground drill is used for drilling the ground, the operator can hold the frame body 100. One end of the drill tool 300 along the first direction ZZ' away from the frame body 100 faces the ground. The driving member 200 drives the drill tool 300 to rotate around the axis of the first direction ZZ', so that the drill tool 300 rotates at a high speed, and then the ground can be drilled. The fixed cylinder 400 and the abutting cylinder 500 are respectively sleeved on the periphery of the drill tool 300. A part of the abutting cylinder 500 extends out of one end of the fixed cylinder 400 facing the ground. The elastic force of the first elastic member 600 makes one end of the abutting cylinder 500 extending out of the fixed cylinder 400 abut against the ground along the first direction ZZ'. Thus, the fixed cylinder 400 and the abutting cylinder 500 can play a role in enclosing around the drill tool 300, and further make it not easy for the operator to accidentally touch the high-speed rotating drill tool 300, effectively reducing the dangerous situation of the operator.

[0049] As the drilling depth increases, the drill tool 300, the driving member 200 and the frame body 100 move downward along the first direction ZZ', so that the fixed cylinder 400 fixedly connected to the frame body 100 moves downward along the first direction ZZ'. Since the abutting cylinder 500 abuts against the ground and remains stationary, during the process that the fixed cylinder 400 moves downward relative to the abutting cylinder 500 along the first direction ZZ', the first elastic member 600 is continuously compressed. The elastic force exerted by the first elastic member 600 on the abutting cylinder 500 increases, making the abutting cylinder 500 able to reliably abut against the ground, and further fully protecting the periphery of the drill tool 300.

[0050] The driving member 200 can be a gasoline engine or a diesel engine. It can also be an electric motor.

[0051] ReferenceFigure 2 An armrest 120 is provided on the frame body 100, and an operator can hold the armrest 120 on the frame body 100 to perform drilling operations.

[0052] Reference Figure 2 The hand-held ground drill further includes a rod body 110, and the length direction of the rod body 110 is along the first direction ZZ'. One end of the rod body 110 is fixedly connected to the frame body 100, and the other end of the rod body 110 is fixedly connected to one end of the fixed cylinder 400, so that the frame body 100 and the fixed cylinder 400 can be fixedly connected through the rod body 100.

[0053] Reference Figure 2 In one embodiment, the fixed cylinder 400 includes a fixed cylinder top wall 410 and a fixed cylinder side wall 420. The fixed cylinder side wall 420 surrounds the periphery of the drill 300. One end of the fixed cylinder side wall 420 close to the frame body 100 along the first direction ZZ' is fixedly connected to the fixed cylinder top wall 410. The outer peripheral surface of the abutting cylinder 500 is slidably connected to the inner peripheral surface of the fixed cylinder side wall 420 along the first direction ZZ'. The drill 300 passes through the fixed cylinder top wall 410.

[0054] During actual assembly, one end of the drill 300 close to the frame body 100 can pass through the fixed cylinder top wall 410 and then be fixedly connected to the output end of the driving member 200.

[0055] Reference Figure 2 In one embodiment, the drill 300 is rotatably connected to the fixed cylinder top wall 410 through a bearing 411, facilitating the smooth rotation of the drill 300.

[0056] Reference Figure 2 In one embodiment, the hand-held ground drill further includes: a sliding rod 610, a sliding sleeve 620, and a connecting rod 630.

[0057] The length direction of the sliding rod 610 is along the first direction ZZ'. One end of the sliding rod 610 is fixedly connected to the fixed cylinder top wall 410. The sliding sleeve 620 is sleeved on the sliding rod 610, and the sliding rod 610 and the sliding sleeve 620 are slidably connected along the first direction ZZ'. The first elastic member 600 is sleeved on the sliding rod 610. One end of the first elastic member 60 is abutted against or fixedly connected to the fixed cylinder top wall 410, and the other end is abutted against or fixedly connected to the sliding sleeve 620. The first elastic member 600 can be a helical compression spring.

[0058] One end of the abutting cylinder 500 close to the frame body 100 is fixedly connected to the sliding sleeve 620 through the connecting rod 630. Specifically, one end of the connecting rod 630 is fixedly connected to the sliding sleeve 620, and the other end is fixedly connected to one end of the abutting cylinder 500 close to the frame body 100.

[0059] During the drilling process, the abutting cylinder 500 abuts against the ground and remains stationary. Therefore, the sliding sleeve 620 is fixed. As the drilling depth increases, the fixed cylinder 400 fixedly connected to the frame body 100 moves downward in the first direction ZZ'. The fixed cylinder 400 drives the sliding rod 610 to move downward synchronously in the first direction ZZ'. Therefore, the sliding rod 610 moves downward along the sliding sleeve 620 and continuously compresses the first elastic member 600, so that the elastic force exerted by the first elastic member 600 on the sliding sleeve 620 increases. The elastic force from the first elastic member 600 is transmitted to the abutting cylinder 500 through the sliding sleeve 620 and the connecting rod 630 in sequence. Therefore, the abutting cylinder 500 can reliably abut against the ground, and further, the abutting cylinder 500 fully protects the periphery of the drilling tool 300.

[0060] Combined with Figure 2 and Figure 3 In one embodiment, the abutting cylinder 500 includes a first cylinder 510 and a second cylinder 520. One end of the first cylinder 510 is detachably connected to one end of the second cylinder 520. The outer peripheral surface of the first cylinder 510 is slidably connected to the inner peripheral surface of the fixed cylinder 400 in the first direction ZZ'. At least a part of the second cylinder 520 extends out of one end of the fixed cylinder 400 facing the ground, and the first cylinder 510 is located at one end of the second cylinder 520 close to the frame body 100. The outer diameters of the first cylinder 510 and the second cylinder 520 are the same.

[0061] Since the first cylinder 510 is located at one end of the second cylinder 520 close to the frame body 100, the second cylinder 520 is located at one end of the first cylinder 510 close to the ground. In actual use, the end of the second cylinder 520 away from the first cylinder 510 abuts against the ground. Therefore, soil particles, gravel, etc. generated during the drilling process are likely to accumulate in the second cylinder 520. By detaching the second cylinder 520 from the first cylinder 520, it is convenient to clean the soil particles and gravel generated by drilling.

[0062] As Figure 2 shown, in one embodiment, the number of the first elastic members 600 is two. The two first elastic members 600 are respectively located on both sides of the drilling tool 300 in the second direction YY'. The second direction YY' is perpendicular to the first direction ZZ'. The sliding rod 610, the sliding sleeve 620, the connecting rod 630, and the first elastic member 600 are arranged in one-to-one correspondence.

[0063] Combined with Figure 2 and Figure 3 In one embodiment, the abutting cylinder 500 further includes a connecting component 530. One end of the first cylinder 510 is detachably connected to one end of the second cylinder 520 through the connecting component 530. The connecting component 530 includes: a plug rod 531, a mating rod 532, a guide cylinder 533, a second elastic member 534, and a push rod 535.

[0064] The axial direction of the guide tube 533 is along the second direction YY', and the second direction YY' is perpendicular to the first direction ZZ'. One end of the guide tube 533 is fixedly connected to the inner peripheral surface of the first tube 510, and the other end faces the central axis of the first tube 510. The second elastic member 534 is located inside the guide tube 533. One end of the second elastic member 534 is fixedly connected to the bottom of the guide tube 533, and one end of the push rod 535 is located inside the guide tube 533 and fixedly connected to the other end of the second elastic member 534. The end of the push rod 535 away from the second elastic member 534 extends out of the guide tube 533 and is fixedly connected to one end of the insertion rod 531.

[0065] The mating rod 532 is fixedly connected to one end of the second tube 520 close to the first tube 510. The mating rod 532 is provided with an insertion hole 5321, and the opening of the insertion hole 5321 faces the insertion rod 531 along the second direction YY'. The elastic force of the second elastic member 534 is used to drive the push rod 535 to move along the second direction YY', so that the push rod 535 can push the insertion rod 531 into the insertion hole 5321 along the second direction YY'.

[0066] Since the second elastic member 534 is located between the bottom of the guide tube 533 and the push rod 535, the second elastic member 534 can apply an elastic force along the second direction YY' to the push rod 535, and this elastic force is transmitted to the insertion rod 531 through the push rod 535, so that the insertion rod 531 enters the insertion hole 5321 and realizes a plug-in fit with the insertion hole 5321. In this way, the connection between one end of the first tube 510 and one end of the second tube 520 is realized.

[0067] Preferably, the insertion hole 5321 is a blind hole. After the elastic force from the second elastic member 534 is transmitted to the insertion rod 531 through the push rod 535, the insertion rod 531 abuts against the bottom of the insertion hole 5321, so that the insertion rod 531 can cooperate with the insertion hole 5321 more reliably.

[0068] When it is necessary to disassemble one end of the first tube 510 and one end of the second tube 520, the operator can move the push rod 535 in the direction of squeezing the second elastic member 534, thereby driving the insertion rod 531 out of the insertion hole 5321, and then the cooperation between the insertion rod 531 and the insertion hole 5321 is released. Then, the second tube 520 can be separated from the first tube 510.

[0069] Combined Figure 2 and Figure 3 , in an embodiment, the connection assembly 530 further includes a back plate 536. The back plate 536 is fixedly connected to the end of the push rod 535 extending out of the guide tube 533. The insertion rod 531 is fixedly connected to the back plate 536 and is located on the side of the back plate 536 facing away from the push rod 535. The back plate 536 protrudes from the mating rod 532 in the direction of the first direction ZZ' towards the frame body 100.

[0070] Since the second elastic member 534 is located between the bottom of the guide cylinder 533 and the push rod 535, the second elastic member 534 can apply an elastic force along the second direction YY' to the push rod 535. This elastic force is transmitted to the insertion rod 531 through the push rod 535 and the back plate 536. Therefore, the back plate 536 drives the insertion rod 531 into the insertion hole 5321.

[0071] When it is necessary to disassemble one end of the first cylinder 510 from one end of the second cylinder 520, the operator can move the back plate 536 in the direction close to the guide cylinder 533, so that the back plate 536 drives the push rod 535 to compress the second elastic member 534. At the same time, the back plate 536 drives the insertion rod 531 out of the insertion hole 5321. As shown in Figure 3 Since the back plate 536 protrudes from the mating rod 532 in the direction of the first direction ZZ' close to the frame body 100, that is, the upper end of the back plate 536 is higher than the upper end of the mating rod 532 in Figure 3 , the operator can push the part of the back plate 536 that protrudes from the mating rod 532, so that the back plate 536 moves in the direction close to the guide cylinder 533. Therefore, it is convenient to operate the back plate 536, and further facilitate the disassembly of the first cylinder 510 and the second cylinder 520.

[0072] The elastic force applied by the second elastic member 534 to the push rod 535 can make the back plate 536 abut against the mating rod 532, so that the back plate 536 and the mating rod 532 are reliably matched, which is beneficial to the reliable insertion of the insertion rod 531 into the insertion hole 5321.

[0073] Combined with Figure 2 and Figure 3 , in an embodiment, the first cylinder 510 includes a first cylinder side wall 512 and an annular bottom wall 511. The first cylinder side wall 512 surrounds the periphery of the drill 300. The outer peripheral edge of the annular bottom wall 511 is fixedly connected to one end of the first cylinder side wall 512 away from the frame body 100. The inner peripheral edge of the annular bottom wall 511 defines a first through hole 5111 for the drill 300 to pass through. One end of the guide cylinder 533 is fixedly connected to the inner peripheral surface of the first cylinder side wall 512.

[0074] The second cylinder 520 includes a second cylinder side wall 522 and an annular top wall 521. The second cylinder side wall 522 surrounds the periphery of the drill 300. The outer peripheral edge of the annular top wall 521 is fixedly connected to one end of the second cylinder side wall 522 close to the frame body 100. The inner peripheral edge of the annular top wall 521 defines a second through hole 5211 for the drill 300 to pass through. The annular top wall 521 and the annular bottom wall 511 are in contact. The mating rod 532 is arranged on the annular top wall 521. The mating rod 532 protrudes from the annular top wall 521 and the annular bottom wall 511 in the direction close to the frame body 100. In Figure 3That is, the upper end of the mating rod 532 is higher than the annular top wall 521 and the annular bottom wall 511, so that it is convenient for the insertion rod 531 to be inserted into the insertion hole 5321 on the mating rod 532.

[0075] Combined Figure 2 with Figure 3 , in an embodiment, the mating rod 532 abuts against the inner peripheral edge of the annular bottom wall 511 (i.e., the hole wall of the first through hole 511). In this way, when assembling the second cylinder 520 with the first cylinder 510, after inserting the mating rod 532 into the first through hole 5211 and abutting against the inner peripheral edge of the annular bottom wall 511, the second cylinder 520 can be inserted into the corresponding position inside the first cylinder 510, which is convenient for positioning the second cylinder 520 and the first cylinder 510.

[0076] Preferably, the side of the mating rod 532 close to the back plate 536 is a plane. The surface of the inner peripheral edge of the annular bottom wall 511 where it abuts against the mating rod 532 is a plane. Therefore, when the mating rod 532 abuts against the inner peripheral edge of the annular bottom wall 511, it is the fitting of plane to plane, which is convenient for positioning.

[0077] Please refer to Figure 2 , in an embodiment, the number of the connecting components 530 is two groups. The two groups of connecting components 530 are respectively located on both sides of the drilling tool 300 along the second direction YY'. The second direction YY' is perpendicular to the first direction ZZ'.

[0078] Refer to Figure 2 , in an embodiment, the hand-held ground drill further includes a spike portion 310. One end of the spike portion 310 is connected to the end of the drilling tool 300 away from the driving member 200. The end of the spike portion 310 facing away from the drilling tool 300 is a tip, and it is convenient for the drilling tool 300 to drill into the ground through the spike portion 310.

[0079] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0080] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A hand-held ground drill, characterized in that, The handheld ground drill includes: A frame; A driving member, installed on the frame; A drill tool, one end of the drill tool in the first direction is installed at the output end of the driving member, and the other end of the drill tool in the first direction is used to drill into the ground, and the first direction is the length direction of the drill tool; A fixed cylinder, the fixed cylinder surrounds the periphery of the drill tool, one end of the fixed cylinder in the first direction is fixedly connected to the frame, and the other end faces the ground; An abutting cylinder, the outer peripheral surface of the abutting cylinder is slidably connected to the inner peripheral surface of the fixed cylinder in the first direction, and a part of the abutting cylinder extends out of the end of the fixed cylinder facing the ground; and A first elastic member, both ends of the first elastic member in the first direction are respectively connected to the fixed cylinder and the abutting cylinder, and the elastic force of the first elastic member can make the end of the abutting cylinder extending out of the fixed cylinder abut against the ground in the first direction.

2. The handheld ground drill according to claim 1, wherein, The fixed cylinder includes a fixed cylinder top wall and a fixed cylinder side wall, and the fixed cylinder side wall surrounds the periphery of the drill tool; one end of the fixed cylinder side wall close to the frame in the first direction is fixedly connected to the fixed cylinder top wall, and the outer peripheral surface of the abutting cylinder is slidably connected to the inner peripheral surface of the fixed cylinder side wall in the first direction; the drill tool penetrates through the fixed cylinder top wall.

3. The handheld ground drill according to claim 2, wherein It further includes: A sliding rod, a sliding sleeve, and a connecting rod; the length direction of the sliding rod is along the first direction, and one end of the sliding rod is fixedly connected to the fixed cylinder top wall; the sliding sleeve is sleeved on the sliding rod, and the sliding rod and the sliding sleeve are slidably connected in the first direction; The first elastic member is sleeved on the sliding rod, one end of the first elastic member abuts against or is fixedly connected to the fixed cylinder top wall, and the other end of the first elastic member abuts against or is fixedly connected to the sliding sleeve; one end of the abutting cylinder close to the frame is fixedly connected to the sliding sleeve through the connecting rod.

4. The hand-held ground drill according to claim 1, characterized in that, The abutting cylinder includes a first cylinder and a second cylinder, and one end of the first cylinder is detachably connected to one end of the second cylinder; the outer peripheral surface of the first cylinder is slidably connected to the inner peripheral surface of the fixed cylinder in the first direction; at least a part of the second cylinder extends out of the end of the fixed cylinder facing the ground, and the first cylinder is located at one end of the second cylinder close to the frame; the outer diameters of the first cylinder and the second cylinder are the same.

5. The hand-held ground drill according to claim 4, characterized in that, The abutting cylinder further includes a connecting component, and the connecting component includes: a plug rod, a mating rod, a guiding cylinder, a second elastic member, and a push rod; The axial direction of the guiding cylinder is along the second direction, and the second direction is perpendicular to the first direction; one end of the guiding cylinder is fixedly connected to the inner peripheral surface of the first cylinder, and the other end faces the central axis of the first cylinder; the second elastic member is located inside the guiding cylinder; one end of the second elastic member is fixedly connected to the bottom of the guiding cylinder, and one end of the push rod is located inside the guiding cylinder and is fixedly connected to the other end of the second elastic member; the end of the push rod away from the second elastic member extends out of the guiding cylinder and is fixedly connected to one end of the plug rod; The mating rod is fixedly connected to one end of the second cylinder close to the first cylinder. The mating rod is provided with a jack, and the opening of the jack faces the plug rod in the second direction; the elastic force of the second elastic member is used to drive the push rod to move in the second direction, so that the push rod can push the plug rod into the jack in the second direction.

6. The hand-held ground drill according to claim 5, characterized in that, The connection assembly further includes a back plate, and the back plate is fixedly connected to one end of the push rod extending out of the guide cylinder; the plug rod is fixedly connected to the back plate and is located on the side of the back plate facing away from the push rod; the back plate protrudes from the mating rod in the direction of approaching the frame body along the first direction.

7. The hand-held earth drill according to claim 6, wherein The first cylinder includes a first cylinder side wall and an annular bottom wall. The first cylinder side wall surrounds the periphery of the drill tool. The outer peripheral edge of the annular bottom wall is fixedly connected to one end of the first cylinder side wall away from the frame body. The inner peripheral edge of the annular bottom wall encloses a first through hole; The second cylinder includes a second cylinder side wall and an annular top wall. The second cylinder side wall surrounds the periphery of the drill tool. The outer peripheral edge of the annular top wall is fixedly connected to one end of the second cylinder side wall close to the frame body. The inner peripheral edge of the annular top wall encloses a second through hole; The annular top wall is arranged in contact with the annular bottom wall, and the mating rod is arranged on the annular top wall; The mating rod protrudes from the annular top wall and the annular bottom wall in the direction of approaching the frame body.

8. The hand-held ground drill according to claim 1, wherein, It further includes a spike portion, and one end of the spike portion is connected to one end of the drill tool away from the driving member; the end of the spike portion facing away from the drill tool is a tip.

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