Rock sampling device

Abstract

The invention provides a rock sampling device, which relates to the field of geological drill floor equipment, and comprises a sampling support base, a lifting guide piece, a drilling machine main body, a sampling drill cylinder, a sampling guide hole, an unloading support frame, an unloading knocking piece, a sampling driving mechanism and an unloading auxiliary mechanism, the lifting guide piece is fixedly connected to the upper part of the sampling support base; the drilling machine body is slidably connected to the front end of the outer side of the lifting guide part. The sampling drill barrel is clamped at the lower end of the drilling machine main body; the number of the discharging supporting frames is two, and the two discharging supporting frames are fixedly connected to the upper portion of the sampling supporting base; the discharging knocking piece is arranged on the inner side of the discharging supporting frame. The sampling driving mechanism is arranged on the outer side of the sampling supporting base; the unloading auxiliary mechanism is arranged on the inner side of the unloading support frame, so that the operation of survey personnel is reduced, the rock-soil sampling efficiency is improved, and the problems that the operation is relatively tedious and the rock-soil sampling efficiency is influenced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological drilling rig equipment, and particularly relates to a rock sampling device. Background Art

[0002] In the field of surveying and mapping geographic information services, accurately obtaining rock samples is crucial for geological structure analysis, mineral resource exploration, engineering geological assessment, environmental geological research, etc. The characteristics of rock samples can provide key data for constructing accurate geographic information models, helping to deeply understand the underground geological structure, predict geological disaster risks, evaluate the feasibility of engineering construction, etc. As an important tool for obtaining rock samples, the performance and application of portable core drills have an important impact on improving the quality of surveying and mapping geographic information services. Portable core drills are miniaturized devices used for collecting core samples in fields such as geological exploration and engineering inspection. They are characterized by being portable and easy to carry, and having flexible operation. They can work in a variety of complex environments. Their structure mainly consists of a power system, a transmission system, a drilling system, a support and stabilization system, a control and monitoring system, etc.

[0003] The existing publication number is: CN116718418B. The present invention relates to the technical field of geological drilling, and specifically relates to a drilling and sampling device for multi-layer strata, including: a bracket, on which a guiding device for guiding the left and right movement of a moving seat is provided, and a winding device for winding a composite traction rope is provided on the guiding device; a bottom connecting rod, the bottom connecting rod includes a bottom hollow tube for installing a hollow drill bit, and a driving device for driving the bottom connecting rod to rotate and move up and down is provided on the bracket. In the drilling device designed by the present invention, the sampling device for extracting samples can freely move up and down along the bottom connecting rod and the connecting sleeve to collect samples. During the collection process, it is not necessary to repeatedly disassemble and assemble the bottom connecting rod and the connecting sleeve, and it is not necessary to use water flow to carry rocks and soil out of the hole, effectively avoiding cross-contamination between samples and facilitating subsequent precise analysis of the samples.

[0004] However, when the existing portable core drill is in use, when the geotechnical sample is taken out of the drill barrel, due to the friction between the geotechnical sample and the drill barrel, workers need to use tools such as hammers to gently tap the drill barrel, and then separate the geotechnical sample from the drill barrel before the geotechnical sample can be poured out, resulting in a cumbersome operation and affecting the efficiency of geotechnical sampling. Summary of the Invention

[0005] In view of this, the present invention provides a rock sampling device, which facilitates the control of the sampling depth, realizes the occlusion of the sampling guiding hole, avoids the falling of the geotechnical sample into the hole, realizes the protection of the geotechnical sample box and the sampling hole, facilitates the use of the surveyors, improves the use effect of the whole sampling device, separates the geotechnical sample inside the sampling drill barrel from the inner wall of the sampling drill barrel, facilitates the extraction and separation of the geotechnical sample inside the sampling drill barrel, reduces the operation of the surveyors, and improves the efficiency of geotechnical sampling.

[0006] The present invention provides a rock sampling device, which specifically includes a sampling support base, a moving push handle, a lifting guiding member, a drilling machine main body, a sampling drill barrel, a sampling guiding hole, moving support wheels, a discharging support frame, a discharging knocking member, a sampling driving mechanism and a discharging assisting mechanism; the moving push handle is fixedly connected to the rear end above the sampling support base; the lifting guiding member is fixedly connected to the upper part of the sampling support base; the drilling machine main body is slidably connected to the front end outside the lifting guiding member; the sampling drill barrel is clamped to the lower end of the drilling machine main body; the sampling guiding hole is opened at the middle position of the sampling support base; two groups of moving support wheels are provided, and the two groups of moving support wheels are respectively rotatably connected to the left and right sides at the rear of the sampling support base; two groups of discharging support frames are provided, and the two groups of discharging support frames are respectively fixedly connected to the upper part of the sampling support base; the discharging knocking member is arranged inside the discharging support frame; the sampling driving mechanism is arranged outside the sampling support base; the discharging assisting mechanism is arranged inside the discharging support frame.

[0007] Further, the sampling driving mechanism includes: a lifting driving arm, a lifting fixing member, a lifting driving gear and a lifting driving tooth groove; the lifting driving arm is slidably connected to the right side at the rear of the drilling machine main body; the lifting fixing member is fixedly connected to the left side at the rear of the drilling machine main body; the lifting driving gear is coaxially fixedly connected to the left side of the lifting driving arm; multiple groups of lifting driving tooth grooves are provided, and the multiple groups of lifting driving tooth grooves are respectively opened in front of the lifting guiding member, and the multiple groups of lifting driving tooth grooves are respectively meshed with the lifting driving gear.

[0008] Further, the sampling driving mechanism further includes: a first lifting limiting member, a second lifting limiting member and a lifting connecting spring; the first lifting limiting member is coaxially fixedly connected to the left side of the lifting driving gear, and the first lifting limiting member is provided with multiple groups of slot structures; the second lifting limiting member is a plug structure, and the second lifting limiting member is fixedly connected to the right side of the lifting fixing member; the lifting connecting spring is rotatably connected to the right side of the lifting fixing member, and the right end of the lifting connecting spring is fixedly connected to the lifting driving arm.

[0009] Further, the sampling driving mechanism further includes: sampling shielding plates; two groups of sampling shielding plates are provided, and the two groups of sampling shielding plates are respectively slidably connected to the inside of the sampling support base.

[0010] Further, the sampling driving mechanism further includes: a shielding operation handle, a shielding guide wheel, a shielding transmission rope, and a shielding return spring; the shielding operation handle is fixedly connected to the right side of the front group of sampling shielding plates; the shielding guide wheel is rotatably connected to the inner side of the sampling support base; the shielding transmission rope is wound around the outer side of the shielding guide wheel, and the front and rear ends of the shielding transmission rope are respectively fixedly connected to the sampling shielding plates; two groups of shielding return springs are provided, and the two groups of shielding return springs are respectively fixedly connected to the rear ends of the rear group of sampling shielding plates, and the rear ends of the two groups of shielding return springs are both fixedly connected to the sampling support base.

[0011] Further, the unloading assisting mechanism includes: a knocking guide rod, a knocking driving slider, a knocking driving disk, and a knocking contact member; two groups of knocking guide rods are provided, and the two groups of knocking guide rods are respectively fixedly connected between the two groups of unloading support frames; a rectangular groove structure is formed inside the knocking driving slider, the knocking driving slider is slidably connected to the inner side of the knocking guide rod, and the unloading knocking member is fixedly connected to the front end of the knocking driving slider; the knocking driving disk is rotatably connected to the middle position above the sampling support base, a convex block structure is provided at the left centrifugal position of the knocking driving disk, and the convex block structure of the knocking driving disk is arranged inside the rectangular groove of the knocking driving slider; the knocking contact member is fixedly connected to the front end of the unloading knocking member through a spring, and the knocking contact member is a spherical rubber structure.

[0012] Further, the unloading assisting mechanism further includes: a knocking driving ratchet, a knocking winding shaft, and a return spring member; the knocking driving ratchet is composed of a ratchet and a pawl, and the ratchet structure of the knocking driving ratchet is coaxially fixedly connected to the knocking driving disk; the knocking winding shaft is coaxially fixedly connected to the ratchet structure of the knocking driving ratchet; the return spring member is a scroll spring structure, and the return spring member is fixedly connected to the outer periphery of the knocking winding shaft.

[0013] Further, the unloading assisting mechanism further includes: a knocking guide wheel and a knocking transmission rope; the knocking guide wheel is rotatably connected to the upper part of the sampling support base; the knocking transmission rope is wound around the outer periphery of the knocking guide wheel, the upper end of the knocking transmission rope is fixedly connected to the drilling rig main body, and the lower end of the knocking transmission rope is fixedly connected to the knocking winding shaft.

[0014] Beneficial effects Through the setting of the sampling driving mechanism, after the sampling support base is placed, the sampling guiding hole is aligned with the sampling position for positioning. The shielding operation handle is moved forward. The forward movement of the shielding operation handle drives a set of front sampling shielding plates to move forward. The forward movement of a set of front sampling shielding plates pulls the shielding transmission rope. Under the action of the shielding guiding wheel, the shielding transmission rope drives a set of rear sampling shielding plates to move backward. At this time, the two sets of sampling shielding plates move in opposite directions to expose the sampling guiding hole. The drilling rig main body is started, and the lifting driving arm is rotated. The rotation of the lifting driving arm drives the lifting driving gear to rotate. Under the limitation of the lifting driving tooth groove when the lifting driving gear rotates, at this time, the lifting driving gear drives the drilling rig main body to move downward. The downward movement of the drilling rig main body drives the sampling drill cylinder to move downward to sample the rock and soil. When it is necessary to stop the downward movement of the sampling drill cylinder, at this time, the lifting driving arm is slid to the left. The leftward movement of the lifting driving arm drives the first lifting limiting member to move leftward. At this time, the second lifting limiting member is inserted into the inner side of the first lifting limiting member to limit the lifting driving gear and prevent the lifting driving gear from continuing to rotate, which facilitates the control of the sampling depth.

[0015] Through the setting of the sampling driving mechanism, after the sampling is completed, the shielding operation handle is released. Under the action of the shielding return spring, the sampling shielding plate is reset, which realizes the shielding of the sampling guiding hole, avoids the rock and soil samples from falling into the hole, realizes the protection of the rock and soil samples and the sampling hole, facilitates the use of the surveyors, and improves the use effect of the entire sampling device.

[0016] Through the setting of the unloading auxiliary mechanism, when the drilling rig main body moves upward after sampling, at this time, the drilling rig main body moves upward and pulls the knocking transmission rope. Under the action of the knocking guiding wheel, the knocking transmission rope drives the knocking winding shaft to rotate. The rotation of the knocking winding shaft realizes the energy storage of the return spring member. At this time, the ratchet and pawl of the knocking driving ratchet are in the meshing state. The rotation of the knocking winding shaft drives the knocking driving ratchet to rotate. The rotation of the knocking driving ratchet drives the knocking driving disc to rotate. The rotation of the knocking driving disc drives the knocking driving slider to move back and forth. The back-and-forth movement of the knocking driving slider drives the unloading knocking member to move back and forth. The back-and-forth movement of the unloading knocking member drives the knocking contact member to move back and forth. The knocking contact member moves back and forth to knock the sampling drill cylinder. The sampling drill cylinder generates vibration when knocked, so that the rock and soil samples inside the sampling drill cylinder are separated from the inner wall of the sampling drill cylinder, which facilitates the removal and separation of the rock and soil samples inside the sampling drill cylinder, reduces the operation of the surveyors, and improves the efficiency of rock and soil sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0018] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0019] In the accompanying drawings: Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

[0020] Figure 2 is a schematic diagram of the structure of the shielding operation handle of an embodiment of the present invention.

[0021] Figure 3 is a schematic diagram of the structure of the knocking guide wheel of an embodiment of the present invention.

[0022] Figure 4 is a schematic diagram of the structure of the lifting drive tooth groove of an embodiment of the present invention.

[0023] Figure 5 is a schematic diagram of the structure of the lifting drive gear of an embodiment of the present invention.

[0024] Figure 6 is a schematic diagram of the structure of the knocking drive disc of an embodiment of the present invention.

[0025] Figure 7 is a schematic diagram of the structure of the knocking drive ratchet of an embodiment of the present invention.

[0026] Figure 8 is a schematic diagram of the structure of the sampling shielding plate of an embodiment of the present invention.

[0027] List of reference numerals 1. Sampling support base; 101. Lifting drive arm; 102. Lifting fixing member; 103. Lifting drive gear; 104. Lifting drive tooth groove; 105. First lifting limit member; 106. Second lifting limit member; 107. Lifting connection spring; 108. Sampling shielding plate; 109. Shielding operation handle; 110. Shielding guide wheel; 111. Shielding transmission rope; 112. Shielding return spring; 2. Moving pusher; 3. Lifting guide member; 4. Drilling rig main body; 5. Sampling drill pipe; 6. Sampling guide hole; 7. Moving support wheel; 8. Discharge support frame; 801. Knocking guide rod; 802. Knocking drive slider; 803. Knocking drive disc; 804. Knocking contact member; 805. Knocking drive ratchet; 806. Knocking winding shaft; 807. Return spring member; 808. Knocking guide wheel; 809. Knocking transmission rope; 9. Discharge knocking member. Detailed implementation manners

[0028] Embodiment 1: Please refer to Figures 1 to 8 as shown in The present invention provides a rock sampling device, which includes a sampling support base 1, a moving pusher 2, a lifting guide member 3, a drilling rig main body 4, a sampling drill barrel 5, a sampling guide hole 6, moving support wheels 7, a discharging support frame 8, a discharging knocking member 9, and a sampling driving mechanism; the moving pusher 2 is fixedly connected to the upper rear end of the sampling support base 1; the lifting guide member 3 is fixedly connected to the upper part of the sampling support base 1; the drilling rig main body 4 is slidably connected to the outer front end of the lifting guide member 3; the sampling drill barrel 5 is clamped to the lower end of the drilling rig main body 4; the sampling guide hole 6 is opened at the middle position of the sampling support base 1; two groups of moving support wheels 7 are provided, and the two groups of moving support wheels 7 are respectively rotatably connected to the left and right sides at the rear of the sampling support base 1; two groups of discharging support frames 8 are provided, and the two groups of discharging support frames 8 are respectively fixedly connected to the upper part of the sampling support base 1; the discharging knocking member 9 is arranged inside the discharging support frame 8; the sampling driving mechanism is arranged outside the sampling support base 1.

[0029] Among them, the sampling driving mechanism includes: a lifting driving arm 101, a lifting fixing member 102, a lifting driving gear 103, and a lifting driving tooth groove 104; the lifting driving arm 101 is slidably connected to the right rear side of the drilling rig main body 4; the lifting fixing member 102 is fixedly connected to the left rear side of the drilling rig main body 4; the lifting driving gear 103 is coaxially fixedly connected to the left side of the lifting driving arm 101; multiple groups of lifting driving tooth grooves 104 are provided, and the multiple groups of lifting driving tooth grooves 104 are respectively opened in front of the lifting guide member 3, and the multiple groups of lifting driving tooth grooves 104 are respectively meshed with the lifting driving gear 103.

[0030] Among them, the sampling driving mechanism further includes: a first lifting limit member 105, a second lifting limit member 106, and a lifting connection spring 107; the first lifting limit member 105 is coaxially fixedly connected to the left side of the lifting driving gear 103, and the first lifting limit member 105 is provided with multiple groups of slot structures; the second lifting limit member 106 is a plug structure, and the second lifting limit member 106 is fixedly connected to the right side of the lifting fixing member 102; the lifting connection spring 107 is rotatably connected to the right side of the lifting fixing member 102, and the right end of the lifting connection spring 107 is fixedly connected to the lifting driving arm 101.

[0031] Among them, the sampling driving mechanism further includes: sampling shielding plates 108; two groups of sampling shielding plates 108 are provided, and the two groups of sampling shielding plates 108 are respectively slidably connected to the inside of the sampling support base 1.

[0032] Among them, the sampling driving mechanism further includes: a shielding operating handle 109, a shielding guide wheel 110, a shielding transmission rope 111, and a shielding return spring 112; the shielding operating handle 109 is fixedly connected to the right side of the front group of sampling shielding plates 108; the shielding guide wheel 110 is rotatably connected to the inner side of the sampling support base 1; the shielding transmission rope 111 is wound around the outside of the shielding guide wheel 110, and the front and rear ends of the shielding transmission rope 111 are respectively fixedly connected to the sampling shielding plates 108; two groups of shielding return springs 112 are provided, and the two groups of shielding return springs 112 are respectively fixedly connected to the rear ends of the rear group of sampling shielding plates 108, and the rear ends of the two groups of shielding return springs 112 are both fixedly connected to the sampling support base 1.

[0033] The specific usage mode and function of this embodiment: When sampling rocks, after the sampling support base 1 is placed, align the sampling guide hole 6 with the sampling position for positioning. Move the shielding operating handle 109 forward. The forward movement of the shielding operating handle 109 drives the front group of sampling shielding plates 108 to move forward. The forward movement of the front group of sampling shielding plates 108 pulls the shielding transmission rope 111. Under the action of the shielding guide wheel 110, the shielding transmission rope 111 drives the rear group of sampling shielding plates 108 to move backward. At this time, the two groups of sampling shielding plates 108 move in opposite directions to expose the sampling guide hole 6. Start the drilling rig main body 4 and rotate the lifting drive arm 101. The rotation of the lifting drive arm 101 drives the lifting drive gear 103 to rotate. Under the limitation of the lifting drive tooth groove 104, the lifting drive gear 103 drives the drilling rig main body 4 to move downward. The downward movement of the drilling rig main body 4 drives the sampling drill barrel 5 to move downward to sample the rock and soil. When it is necessary to stop the downward movement of the sampling drill barrel 5, slide the lifting drive arm 101 to the left at this time. The leftward movement of the lifting drive arm 101 drives the first lifting limit member 105 to move to the left. At this time, the second lifting limit member 106 is inserted into the inside of the first lifting limit member 105 to realize the limitation of the lifting drive gear 103, avoiding the continuous rotation of the lifting drive gear 103 and facilitating the control of the sampling depth. After sampling, release the shielding operating handle 109. Under the action of the shielding return spring 112, the sampling shielding plates 108 are reset, realizing the shielding of the sampling guide hole 6, avoiding the rock and soil samples from falling into the hole, protecting the rock and soil samples and the sampling hole, facilitating the use of the surveyors, and improving the use effect of the entire sampling device.

[0034] Embodiment Two: As Figures 1 to 7 shown: The present invention provides a rock sampling device. On the basis of Embodiment One, it further includes a discharging auxiliary mechanism, and the discharging auxiliary mechanism is arranged inside the discharging support frame 8.

[0035] Among them, the unloading auxiliary mechanism includes: a knocking guide rod 801, a knocking driving slider 802, a knocking driving disc 803 and a knocking contact member 804; two groups of knocking guide rods 801 are provided, and the two groups of knocking guide rods 801 are respectively fixedly connected between the two groups of unloading support frames 8; a rectangular groove structure is formed inside the knocking driving slider 802, the knocking driving slider 802 is slidably connected to the inside of the knocking guide rod 801, and the unloading knocking member 9 is fixedly connected to the front end of the knocking driving slider 802; the knocking driving disc 803 is rotatably connected to the middle position above the sampling support base 1, a convex block structure is provided at the left centrifugal position of the knocking driving disc 803, and the convex block structure of the knocking driving disc 803 is arranged inside the rectangular groove of the knocking driving slider 802; the knocking contact member 804 is fixedly connected to the front end of the unloading knocking member 9 through a spring, and the knocking contact member 804 is a spherical rubber structure.

[0036] Among them, the unloading auxiliary mechanism further includes: a knocking driving ratchet 805, a knocking winding shaft 806 and a reset spring member 807; the knocking driving ratchet 805 is composed of a ratchet and a pawl, and the ratchet structure of the knocking driving ratchet 805 is coaxially and fixedly connected to the knocking driving disc 803; the knocking winding shaft 806 is coaxially and fixedly connected to the ratchet structure of the knocking driving ratchet 805; the reset spring member 807 is a scroll spring structure, and the reset spring member 807 is fixedly connected to the outer periphery of the knocking winding shaft 806.

[0037] Among them, the unloading auxiliary mechanism further includes: a knocking guide wheel 808 and a knocking transmission rope 809; the knocking guide wheel 808 is rotatably connected to the upper part of the sampling support base 1; the knocking transmission rope 809 is wound around the outer periphery of the knocking guide wheel 808, the upper end of the knocking transmission rope 809 is fixedly connected to the drilling rig main body 4, and the lower end of the knocking transmission rope 809 is fixedly connected to the knocking winding shaft 806.

[0038] Specific usage mode and function of this embodiment: When the drill rig main body 4 moves downward, the drill rig main body 4 moves downward to relax the percussion transmission rope 809. At this time, under the action of the return spring member 807, the return spring member 807 drives the percussion winding shaft 806 to rotate. The rotation of the percussion winding shaft 806 realizes the winding of the percussion transmission rope 809. At this time, the ratchet and pawl of the percussion drive ratchet 805 are in a separated state. When the drill rig main body 4 finishes sampling and moves upward, at this time, the drill rig main body 4 moves upward to pull the percussion transmission rope 809. The percussion transmission rope 809 drives the percussion winding shaft 806 to rotate under the action of the percussion guide wheel 808. The rotation of the percussion winding shaft 806 realizes the energy storage of the return spring member 807. At this time, the ratchet and pawl of the percussion drive ratchet 805 are in an engaged state. The rotation of the percussion winding shaft 806 drives the percussion drive ratchet 805 to rotate. The rotation of the percussion drive ratchet 805 drives the percussion drive disc 803 to rotate. The rotation of the percussion drive disc 803 drives the percussion drive slider 802 to move back and forth. The back-and-forth movement of the percussion drive slider 802 drives the discharge percussion member 9 to move back and forth. The back-and-forth movement of the discharge percussion member 9 drives the percussion contact member 804 to move back and forth. The back-and-forth movement of the percussion contact member 804 strikes the sampling drill barrel 5. The sampling drill barrel 5 is struck to generate vibration, so that the geotechnical sample inside the sampling drill barrel 5 is separated from the inner wall of the sampling drill barrel 5, which facilitates the extraction and separation of the geotechnical sample inside the sampling drill barrel 5, reduces the operation of the survey personnel, and improves the efficiency of geotechnical sampling.

[0039] In this article, the following points need to be noted: 1. The attached drawings of this embodiment only involve the structures related to this embodiment. Other structures can refer to the general design.

[0040] 2. Without conflict, the features in this embodiment and the embodiments can be combined with each other to obtain new embodiments.

[0041] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A rock sampling device, characterized in that: The invention comprises a sampling support base (1), a movable pusher (2), a lifting guide member (3), a drilling machine body (4), a sampling drill tube (5), a sampling guide hole (6), a movable support wheel (7), a discharge support frame (8), a discharge knocking member (9), a sampling drive mechanism and a discharge auxiliary mechanism; the movable pusher (2) is fixedly connected to the upper rear end of the sampling support base (1); the lifting guide member (3) is fixedly connected to the upper part of the sampling support base (1); the drilling machine body (4) is slidably connected to the outer front end of the lifting guide member (3); the sampling drill tube (5) is clamped on the drilling machine body (4); the sampling guide hole (6) is provided at the middle position of the sampling support base (1); the movable support wheels (7) are provided in two groups, and the two groups of movable support wheels (7) are rotatably connected to the left and right sides of the rear of the sampling support base (1); the unloading support frames (8) are provided in two groups, and the two groups of unloading support frames (8) are respectively fixedly connected to the top of the sampling support base (1); the unloading knocking member (9) is provided on the inner side of the unloading support frame (8); the sampling drive mechanism is provided on the outer side of the sampling support base (1); and the unloading auxiliary mechanism is provided on the inner side of the unloading support frame (8).

2. A rock sampling device as claimed in claim 1, characterized in that: The sampling drive mechanism comprises: a lifting drive arm (101), a lifting fixing member (102), a lifting drive gear (103) and a lifting drive tooth groove (104); the lifting drive arm (101) is slidably connected to the rear right side of the drilling rig body (4); the lifting fixing member (102) is fixedly connected to the rear left side of the drilling rig body (4); the lifting drive gear (103) is coaxially fixedly connected to the left side of the lifting drive arm (101); a plurality of groups of lifting drive tooth grooves (104) are provided, the plurality of groups of lifting drive tooth grooves (104) are respectively arranged in front of the lifting guide member (3), and the plurality of groups of lifting drive tooth grooves (104) are respectively meshed with the lifting drive gear (103).

3. A rock sampling device as claimed in claim 2, characterized in that: The sampling drive mechanism further comprises: a first lifting limiter (105), a second lifting limiter (106) and a lifting connection spring (107); the first lifting limiter (105) is coaxially fixedly connected to the left side of the lifting drive gear (103), and the first lifting limiter (105) is provided with a plurality of slot structures; the second lifting limiter (106) is an insert block structure, and the second lifting limiter (106) is fixedly connected to the right side of the lifting fixture (102); the lifting connection spring (107) is rotatably connected to the right side of the lifting fixture (102), and the right end of the lifting connection spring (107) is fixedly connected to the lifting drive arm (101).

4. A rock sampling device as claimed in claim 3, characterized in that: The sampling drive mechanism further comprises: sampling shielding plates (108); two groups of the sampling shielding plates (108) are provided in total, and the two groups of sampling shielding plates (108) are respectively slidably connected to the inner side of the sampling support base (1).

5. A rock sampling device as claimed in claim 4, characterized in that: The sampling drive mechanism further comprises: a shielding operation handle (109), a shielding guide wheel (110), a shielding transmission rope (111) and a shielding reset spring (112); the shielding operation handle (109) is fixedly connected to the right side of a front group of sampling shielding plates (108); the shielding guide wheel (110) is rotatably connected to the inner side of the sampling support base (1); the shielding transmission rope (111) is wound around the outer side of the shielding guide wheel (110), and the front and rear ends of the shielding transmission rope (111) are respectively fixedly connected to the sampling shielding plates (108); and the shielding reset spring (112) is provided in two groups, and the two groups of shielding reset springs (112) are respectively fixedly connected to the rear ends of a rear group of sampling shielding plates (108), and the rear ends of the two groups of shielding reset springs (112) are both fixedly connected to the sampling support base (1).

6. A rock sampling device as claimed in claim 1, characterized in that: The unloading auxiliary mechanism comprises: a knocking guide rod (801), a knocking driving slider (802), a knocking driving disk (803) and a knocking contact piece (804); the knocking guide rod (801) is provided in two groups, and the two groups of knocking guide rods (801) are respectively fixedly connected between two groups of unloading support frames (8); a rectangular groove structure is provided on the inner side of the knocking driving slider (802), and the knocking driving slider (802) is slidably connected to the inner side of the knocking guide rod (801); the unloading knocking piece (804) 9) is fixedly connected to the front end of the knocking drive slider (802); the knocking drive disk (803) is rotatably connected to the upper middle position of the sampling support base (1), a convex structure is provided at the left centrifugal position of the knocking drive disk (803), and the convex structure of the knocking drive disk (803) is provided on the inner side of the rectangular groove of the knocking drive slider (802); the knocking contact piece (804) is fixedly connected to the front end of the unloading knocking piece (9) by a spring, and the knocking contact piece (804) is a spherical rubber structure.

7. A rock sampling device as claimed in claim 6, characterized in that: The unloading auxiliary mechanism further comprises: a knocking drive ratchet (805), a knocking winding shaft (806) and a return spring member (807); the knocking drive ratchet (805) consists of a ratchet and a pawl, and the ratchet structure of the knocking drive ratchet (805) is coaxially fixedly connected to the knocking drive disk (803); the knocking winding shaft (806) is coaxially fixedly connected to the ratchet structure of the knocking drive ratchet (805); and the return spring member (807) is a scroll spring structure, and the return spring member (807) is fixedly connected to the outer periphery of the knocking winding shaft (806).

8. A rock sampling device as claimed in claim 7, characterized in that: The unloading auxiliary mechanism further comprises: a knocking guide wheel (808) and a knocking transmission rope (809); the knocking guide wheel (808) is rotatably connected to the top of the sampling support base (1); the knocking transmission rope (809) is wound around the outer periphery of the knocking guide wheel (808), the upper end of the knocking transmission rope (809) is fixedly connected to the drilling rig body (4), and the lower end of the knocking transmission rope (809) is fixedly connected to the knocking winding reel (806).

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