Geological survey hole depth measuring device

Abstract

The utility model discloses a hole depth measuring device for geological survey, which relates to the technical field of geological survey and comprises a fixing plate, an adjusting component arranged at the bottom end of the fixing plate, mounting plates symmetrically arranged on two sides of the top end of the fixing plate, supporting plates symmetrically arranged on the inner walls of the tops of the mounting plates, and a measuring leather tape arranged between the two supporting plates. An opening matched with the measuring leather tape is formed in the middle of the top end of the fixing plate, a universal gradienter is arranged at one end of the top of the fixing plate, and the bottom of the measuring leather tape is connected with a measuring auxiliary assembly. The geological survey hole depth measuring device is reasonable and reliable in structure and simple to operate, can adapt to measurement work on uneven ground under the action of the adjusting assembly, can drive the measuring leather tape to reach the bottom of a hole to be fixed under the action of the measuring auxiliary assembly, is convenient for workers to observe, and improves the working efficiency. Therefore, the measuring efficiency of the hole depth measuring device for geological survey is improved, and the overall stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a geological exploration hole depth measuring device. Background Art

[0002] Geological survey refers to the detailed investigation, analysis, and evaluation of the geological conditions and environmental characteristics of the construction site based on the needs of the construction project, and the compilation of survey documents based on this information to provide a scientific basis for engineering design and construction. To ensure the accuracy of the survey, especially in drilling operations, it is crucial to measure the depth of the borehole. During the geological survey process, the hole depth measuring device is a tool used to measure the depth of the borehole. It can accurately record the drilling depth of the drilling equipment so that the specific conditions of the underground strata can be grasped in a timely manner. However, when the existing geological survey hole depth measuring device is in operation, when the borehole is deep, the staff cannot see the end of the tape measure and thus cannot accurately determine the position of the tape measure end. If the tape measure reaches the bottom of the borehole and the staff lowers the other end, the measurement result will be too large. If the tape measure does not reach the bottom of the borehole and is measured directly, the measurement result will be too small, which will affect the measurement accuracy.

[0003] For example, Chinese patent CN218765041U discloses a geological survey hole depth measuring device, which includes a housing and a tape measure. The tape measure is provided on the inner side of the housing, the outer side of the end of the tape measure is fixedly connected to a fixed disk, the inner side of the fixed disk is fixedly connected to a battery, and the inner side of the bottom end of the fixed disk is fixedly connected to a limit switch.

[0004] This geological survey hole depth measurement device has the following disadvantages: although the end of the tape measure is fixed to the fixed plate by the limit switch, alarm, limit plate, limit ring, spring, first electromagnet, second electromagnet, guide post, and guide plate, and the fixed plate carries the end of the tape measure into the hole, thereby facilitating the operator to accurately determine whether the end of the tape measure has reached the bottom of the hole, the electromagnet consumes an amount of electrical energy that is not equal to the magnetic energy it generates. Heat (copper loss) is generated in the winding and heat (iron loss) is generated in the core, both of which consume a portion of electrical energy. Furthermore, the electromagnet controls the movement of the spring, guide plate, guide post, screw, and limit plate. However, after the electromagnet is engaged, it no longer generates output magnetic energy and must be continuously energized to maintain its operation. Therefore, the battery cannot be used for a long time and needs to be frequently charged, thereby increasing the power consumption of the geological survey hole depth measurement device. Furthermore, if the electromagnet's suction force is insufficient or the spring's restoring force is insufficient, the limit plate will not be in close contact with the hole wall, and may easily slip or loosen, thereby reducing measurement efficiency.

[0005] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a geological survey hole depth measuring device to overcome the above technical problems existing in the existing related technology.

[0007] To this end, the specific technical solutions adopted in this utility model are as follows:

[0008] A geological survey hole depth measuring device includes a fixed plate, an adjustment component is provided at the bottom end of the fixed plate, mounting plates are symmetrically provided on both sides of the top of the fixed plate, support plates are symmetrically provided on the top inner wall of the mounting plate, a measuring tape is provided between the two support plates, an opening is provided in the middle of the top of the fixed plate to match the measuring tape, a universal level is provided at one end of the top of the fixed plate, a measuring auxiliary component is connected to the bottom of the measuring tape, a control panel is provided on one side wall of the fixed plate, and a battery is provided at the inner bottom end of the measuring auxiliary component.

[0009] Furthermore, in order to enable the geological survey hole depth measuring device to adapt to the measurement work of uneven ground under the action of the adjustment component, avoid the accuracy of hole depth measurement caused by uneven ground, thereby improving the overall stability of the geological survey hole depth measuring device, the adjustment component includes a plurality of mounting blocks arranged at the bottom end of the fixed plate, and the side walls at both ends of the mounting block are symmetrically provided with connecting columns, and the circumferential outer part of the connecting column is provided with a retractable support member and maintains a movable connection, and the bottom of the retractable support member is connected to a stabilizing member, the retractable support member includes a retractable support rod arranged outside the circumference of the connecting column, and the bottom of the retractable support rod is connected to a limiting ball, and the stabilizing member includes a first fixed column arranged at the bottom of the limiting ball, and the top of the first fixed column is provided with a spherical limiting groove matching the limiting ball, and the bottom end of the first fixed column is provided with a support pad.

[0010] Furthermore, in order to drive the measuring tape to the bottom of the borehole for fixing under the action of the measuring auxiliary component, the measuring tape can be tightened to make the measuring tape in a straight state, which is convenient for staff to observe, thereby improving the measurement efficiency of the geological survey hole depth measuring device and reducing power consumption, the measuring auxiliary component includes a shell arranged at the bottom of the measuring tape, a second fixed column is arranged at the inner bottom end of the shell, a turntable is arranged at the top of the second fixed column, a plurality of limiting slots are provided on the circumferential outer wall of the turntable, an expansion piece matching the limiting slots is provided on the top of the turntable, a driving piece matching the expansion piece is provided at the bottom end of the turntable, and a plurality of driving pieces matching the expansion piece are provided on the circumferential outer wall of the shell. The top of the shell is provided with a warning light, and the bottom of the shell is provided with a micro switch that matches the warning light. The expansion part includes a gear 1 arranged at the top of the turntable, and a plurality of limit holes are opened at the top of the gear 1. A limit slide is provided inside the limit slide, and an arc limit plate is provided at one end of the limit slide. A limit column matching the limit hole is provided on the top of the other end of the limit slide. The driving part includes a gear 2 engaged with one side of the gear 1, and a rotating shaft passing through the top of the turntable is provided at the bottom end of the gear 2. A worm gear is connected to the bottom of the rotating shaft, and a worm is engaged with one side of the worm gear. A mounting seat matching the worm gear is provided at the bottom end of the turntable, and the end of the worm gear passes through the side wall of one end of the mounting seat and is connected to a servo motor.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model has a reasonable and reliable structure and is easy to operate. By observing the universal level, it is judged whether the geological survey hole depth measuring device is tilted. If it is tilted, the angle is adjusted by the adjustment component so that the fixing plate and the ground are at the same horizontal plane, and the measurement auxiliary component is lowered into the borehole. The measurement auxiliary component will drive the measuring tape to move downward, and the measurement auxiliary component is started to be fixed between the borehole inner wall. Then, the measuring tape is tightened, and the staff can observe and record the corresponding measurement value of the measuring tape; under the action of the adjustment component, the geological survey hole depth measuring device can adapt to the measurement work on uneven ground. At the same time, under the action of the measurement auxiliary component, the measuring tape can be driven to be fixed when it reaches the bottom of the hole, so that the measuring tape is in a straight state, which is convenient for the staff to observe, thereby improving the measurement efficiency of the geological survey hole depth measuring device, reducing power consumption, and improving overall stability.

[0013] 2. By setting an adjustment component, when it is necessary to make the fixed plate and the ground at the same level, the three retractable support rods are moved to expand outward or retract inward under the cooperation of the connecting column and the mounting block, thereby driving the support pad to expand outward or retract inward under the action of the retractable support rod. When the support pad contacts the ground at the survey site, the limiting ball moves in the spherical limiting groove, which can drive the support pad and the retractable support rod to form a support angle. Then, by observing the universal level, it is determined whether the fixed plate and the ground are at the same level. If they are not at the same level, the three retractable support rods are continued to be adjusted to expand outward or retract inward until it is determined by observing the universal level that the fixed plate and the ground are at the same level, the adjustment can be stopped, so that the support pad can adapt to the uneven ground at the survey site, thereby improving the stability of the geological survey hole depth measuring device.

[0014] 3. By setting up the measurement auxiliary components, when it is necessary to measure the drill hole and make the measuring tape in a taut state when it reaches the bottom of the drill hole, when the micro switch touches the bottom of the drill hole, the circuit is connected under the action of the battery, so that the prompt light is on, and the staff is reminded. At this time, it is only necessary to start the servo motor through the control panel to drive the worm to move. During the rotation of the worm, the worm gear is driven to move, and at the same time, the worm gear drives the shaft to rotate. Under the action of the shaft, gear 2 is driven to move, and gear 1 is driven to move under the action of gear 2. Under the action of gear 1, the limit hole is driven to rotate. Due to the limit of the limit hole The limit column will move along the movement trajectory of the limit hole. When the limit column moves, it will drive the connected limit slide to move outward. The limit slide will move outward horizontally along the limit slide under the limit of the limit slide, and at this time, it will drive the arc support plate to expand. When the arc support plate contacts the inner wall of the borehole, the servo motor can be turned off and no longer needs to be powered, so that the measuring tape can be driven to the bottom of the borehole for fixation. By tightening the measuring tape, the measuring tape is in a straight state, which is convenient for staff to observe, thereby improving the measurement efficiency of the geological survey hole depth measuring device and reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a three-dimensional diagram of a geological survey hole depth measuring device according to an embodiment of the present utility model;

[0017] Figure 2 This is a structural schematic diagram of an adjustment component in a geological exploration hole depth measurement device according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of another angle of an adjustment component in a geological exploration hole depth measurement device according to an embodiment of the present utility model;

[0019] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle;

[0020] Figure 5 This is a structural schematic diagram of a support plate in a geological survey hole depth measurement device according to an embodiment of the present utility model;

[0021] Figure 6 This is a structural schematic diagram of a measurement auxiliary component in a geological exploration hole depth measurement device according to an embodiment of the present utility model;

[0022] Figure 7 This is a schematic structural diagram from another angle of a measurement auxiliary component in a geological exploration hole depth measurement device according to an embodiment of the present utility model;

[0023] Figure 8 This is a cross-sectional view of a measurement auxiliary component in a geological exploration hole depth measurement device according to an embodiment of the present utility model;

[0024] Figure 9 This is a cross-sectional view from another angle of a measurement auxiliary component in a geological exploration hole depth measurement device according to an embodiment of the present utility model;

[0025] Figure 10 The present invention is a structural schematic diagram of an arc-shaped limit plate in a geological exploration hole depth measuring device according to an embodiment of the present invention.

[0026] In the picture:

[0027] 1. Fixing plate; 2. Adjustment assembly; 201. Mounting block; 202. Connecting column; 203. Telescopic support member; 2031. Telescopic support rod; 2032. Stop ball; 204. Stabilizing member; 2041. First fixing column; 2042. Spherical stop groove; 2043. Support pad; 3. Mounting plate; 4. Support plate; 5. Measuring tape; 6. Opening hole; 7. Universal level; 8. Measuring auxiliary assembly; 801. Housing; 802. Second fixing column; 803. Rotating Disc; 804, limiting slide; 805, expansion piece; 8051, gear 1; 8052, limiting hole; 8053, limiting slide; 8054, arc-shaped limiting plate; 8055, limiting column; 806, driving part; 8061, gear 2; 8062, rotating shaft; 8063, worm gear; 8064, worm; 8065, mounting seat; 8066, servo motor; 807, slot; 808, warning light; 809, micro switch; 9, control panel; 10, battery. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the present utility model, a geological survey hole depth measuring device is provided.

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figures 1-10 As shown, the geological survey hole depth measuring device according to the embodiment of the utility model includes a fixed plate 1, an adjustment component 2 is provided at the bottom end of the fixed plate 1, mounting plates 3 are symmetrically provided on both sides of the top of the fixed plate 1, support plates 4 are symmetrically provided on the top inner wall of the mounting plate 3, a measuring tape 5 is provided between the two support plates 4, an opening 6 is provided in the middle part of the top of the fixed plate 1 to match the measuring tape 5, a universal level 7 is provided at one end of the top of the fixed plate 1, a measuring auxiliary component 8 is connected to the bottom of the measuring tape 5, a control panel 9 is provided on one end side wall of the fixed plate 1, and a battery 10 is provided at the inner bottom end of the measuring auxiliary component 8. In specific applications, the battery 10 is electrically connected to the micro switch 809, the prompt light 808, and the servo motor 8066 respectively.

[0031] In addition, the structures and working principles of the battery 10, micro switch 809, warning light 808, servo motor 8066, measuring tape 5, and universal level 7 are all existing technologies and will not be elaborated here.

[0032] In one embodiment, for the above-mentioned adjustment assembly 2, the adjustment assembly 2 includes a plurality of mounting blocks 201 arranged at the bottom end of the fixed plate 1, and the side walls of both ends of the mounting block 201 are symmetrically provided with connecting columns 202, and the circumferential outer portion of the connecting column 202 is provided with a retractable support member 203 and maintains a movable connection, and the bottom of the retractable support member 203 is connected to a stabilizing member 204, and the retractable support member 203 includes a retractable support rod 2031 arranged outside the circumference of the connecting column 202, and the bottom of the retractable support rod 2031 is connected to the limiting ball 2 032, the stabilizing member 204 includes a first fixing column 2041 arranged at the bottom of the limiting ball 2032, and a spherical limiting groove 2042 that cooperates with the limiting ball 2032 is provided at the top of the first fixing column 2041. A supporting pad 2043 is provided at the bottom end of the first fixing column 2041, so that under the action of the adjustment component 2, the geological survey hole depth measuring device can adapt to the measurement work on uneven ground, avoid the accuracy of hole depth measurement caused by uneven ground, and thus improve the overall stability of the geological survey hole depth measuring device.

[0033] The specific working principle of the adjustment component 2 is as follows: when it is necessary to make the fixed plate 1 and the ground at the same level, the three retractable support rods 2031 are moved to expand outward or retract inward under the cooperation of the connecting column 202 and the mounting block 201, thereby driving the support pad 2043 to expand outward or retract inward under the action of the retractable support rods 2031. When the support pad 2043 contacts the ground at the survey site, the limiting ball 2032 moves in the spherical limiting groove 2042, which can drive the support pad 2043 to expand outward or retract inward. 43 forms a support angle with the retractable support rod 2031, and then the fixed plate 1 and the ground are judged to be in the same horizontal plane by observing the universal level 7. If they are not in the same horizontal plane, the three retractable support rods 2031 are continuously adjusted to expand outward or contract inward until the fixed plate 1 and the ground are determined to be in the same horizontal plane by observing the universal level 7. The adjustment can be stopped, so that the support pad 2043 can adapt to the uneven ground of the survey site, thereby improving the stability of the geological survey hole depth measuring device.

[0034] In one embodiment, for the above-mentioned measurement auxiliary component 8, the measurement auxiliary component 8 includes a shell 801 arranged at the bottom of the measuring tape 5, a second fixing column 802 is provided at the inner bottom end of the shell 801, a turntable 803 is provided at the top end of the second fixing column 802, a plurality of limiting grooves 804 are provided on the circumferential outer wall of the turntable 803, an expansion piece 805 is provided at the top end of the turntable 803 to match the limiting grooves 804, and a plurality of expansion pieces 805 are provided at the bottom end of the turntable 803 to match the expansion piece 805. The outer wall of the housing 801 is provided with a plurality of slots 807 that cooperate with the expansion member 805, and the top of the housing 801 is provided with a warning light 808. The bottom of the housing 801 is provided with a micro switch 809 that cooperates with the warning light 808. The expansion member 805 includes a gear 8051 provided on the top of the turntable 803. The top of the gear 8051 is provided with a plurality of limiting holes 8052. The interior of the limiting slide 804 is provided with a limiting slide bar 8053. One end of the slide bar 8053 is provided with an arc-shaped limiting plate 8054, and the other end of the limiting slide bar 8053 is provided with a limiting column 8055 that matches the limiting hole 8052. The driving member 806 includes a gear 2 8061 meshed with one side of the gear 1 8051, and the bottom end of the gear 2 8061 is provided with a rotating shaft 8062 that passes through the top of the turntable 803. The bottom of the rotating shaft 8062 is connected to a worm gear 8063, and one side of the worm gear 8063 is meshed with a worm 8064. The turntable 80 3 is provided with a mounting seat 8065 that cooperates with the worm 8064. The end of the worm 8064 passes through the side wall of one end of the mounting seat 8065 and is connected to a servo motor 8066, so that under the action of the measurement auxiliary component 8, the measuring tape 5 can be driven to be fixed when it reaches the bottom of the borehole, thereby tightening the measuring tape 5 and making it straight, which is convenient for staff to observe, thereby improving the measurement efficiency of the geological exploration hole depth measurement device and making it more applicable.

[0035] The specific working principle of the measurement auxiliary component 8 is as follows: when it is necessary to measure the drill hole and the measuring tape 5 is in a taut state when it reaches the bottom of the drill hole, when the micro switch 809 touches the bottom of the drill hole, the circuit is connected under the action of the battery 10, so that the prompt light 808 lights up, and the staff is reminded. At this time, it is only necessary to start the servo motor 8066 through the control panel 9 to drive the worm 8064 to move. During the rotation of the worm 8064, the worm wheel 8063 is driven to move. At the same time, the worm wheel 8063 drives the rotating shaft 8062 to rotate. Under the action of the rotating shaft 8062, the gear 2 8061 is driven to move. Under the action of the gear 2 8061, the gear 1 8051 is driven to move. Under the action of the gear 1 8051, the limit hole 8052 is driven. Rotation occurs. Due to the limitation of the limiting hole 8052, the limiting column 8055 will move along the movement trajectory of the limiting hole 8052. When the limiting column 8055 moves, it will drive the connected limiting slide 8053 to move outward. The limiting slide 8053 will move outward in the horizontal direction of the limiting slide 804 under the limitation of the limiting slide 804, and at this time, it will drive the arc limiting plate 8054 to expand. When the arc limiting plate 8054 contacts the inner wall of the borehole, the servo motor 8066 can be turned off at this time, and no power is needed to it, so that the measuring tape 5 can be driven to reach the bottom of the borehole for fixing. By tightening the measuring tape 5, the measuring tape 5 is in a straight state, which is convenient for staff to observe, thereby improving the measurement efficiency of the geological survey hole depth measuring device.

[0036] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process is described in detail below.

[0037] In actual application, first, the geological survey hole depth measuring device is placed above the borehole to be measured, and the universal level 7 is observed to determine whether the geological survey hole depth measuring device is tilted. If tilted, the angle is adjusted through the adjustment component 2 so that the fixing plate 1 is at the same horizontal plane as the ground, and the measurement auxiliary component 8 is lowered into the borehole. Under the action of gravity, the measurement auxiliary component 8 will drive the measuring tape 5 to move downward. When the microswitch 809 touches the bottom of the borehole, the circuit is turned on under the action of the battery 10, so that the prompt light 808 lights up, which reminds the staff. At this time, the measurement auxiliary component 8 is started and fixed between the inner wall of the borehole, and then the measuring tape 5 is tightened from the top of the measuring tape 5. Finally, the staff can observe and record the corresponding measurement values of the measuring tape 5 to measure the depth of the borehole.

[0038] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A geological survey hole depth measuring device, comprising a fixing plate (1), characterized in that: An adjustment component (2) is provided at the bottom end of the fixing plate (1), mounting plates (3) are symmetrically provided on both sides of the top of the fixing plate (1), support plates (4) are symmetrically provided on the inner wall of the top of the mounting plate (3), a measuring tape (5) is provided between the two support plates (4), an opening (6) matching the measuring tape (5) is provided at the middle of the top of the fixing plate (1), a universal level (7) is provided at one end of the top of the fixing plate (1), a measuring auxiliary component (8) is connected to the bottom of the measuring tape (5), a control panel (9) is provided on one side wall of the fixing plate (1), and a battery (10) is provided at the inner bottom end of the measuring auxiliary component (8).

2. A geological survey hole depth measuring device according to claim 1, characterized in that: The adjustment assembly (2) comprises a plurality of mounting blocks (201) arranged at the bottom end of the fixed plate (1), and connecting columns (202) are symmetrically arranged on the side walls at both ends of the mounting blocks (201), and a retractable support member (203) is sleeved on the circumference of the connecting column (202) and maintains a movable connection, and the bottom of the retractable support member (203) is connected to a stabilizing member (204).

3. A geological survey hole depth measuring device according to claim 2, characterized in that: The telescopic support member (203) comprises a telescopic support rod (2031) arranged outside the circumference of the connecting column (202), and the bottom of the telescopic support rod (2031) is connected to a limiting ball (2032).

4. A geological survey hole depth measuring device according to claim 3, characterized in that: The stabilizing member (204) comprises a first fixing column (2041) arranged at the bottom of the limiting ball (2032), a spherical limiting groove (2042) matching the limiting ball (2032) is provided at the top end of the first fixing column (2041), and a supporting pad (2043) is provided at the bottom end of the first fixing column (2041).

5. The geological exploration hole depth measuring device according to claim 1, characterized in that: The measuring auxiliary component (8) comprises a housing (801) arranged at the bottom of the measuring tape (5), a second fixing column (802) being provided at the inner bottom end of the housing (801), a rotating disk (803) being provided at the top end of the second fixing column (802), and a plurality of limiting sliding grooves (804) being provided on the circumferential outer wall of the rotating disk (803); The top of the turntable (803) is provided with an expansion piece (805) that cooperates with the limiting sliding groove (804), the bottom of the turntable (803) is provided with a driving piece (806) that cooperates with the expansion piece (805), the circumferential outer wall of the shell (801) is provided with a plurality of slots (807) that cooperate with the expansion piece (805), the top of the shell (801) is provided with a warning light (808), and the bottom of the shell (801) is provided with a micro switch (809) that cooperates with the warning light (808).

6. A geological survey hole depth measuring device according to claim 5, characterized in that: The expansion member (805) includes a gear 1 (8051) arranged on the top of the turntable (803), a plurality of limiting holes (8052) are opened at the top of the gear 1 (8051), a limiting slide rod (8053) is arranged inside the limiting slide groove (804), an arc-shaped limiting plate (8054) is arranged at one end of the limiting slide rod (8053), and a limiting column (8055) that matches the limiting hole (8052) is arranged at the top of the other end of the limiting slide rod (8053).

7. A geological survey hole depth measuring device according to claim 6, characterized in that: The driving member (806) includes a second gear (8061) meshed with one side of the first gear (8051), a rotating shaft (8062) penetrating the top of the turntable (803) is provided at the bottom end of the second gear (8061), a worm wheel (8063) is connected to the bottom of the rotating shaft (8062), a worm (8064) is meshed with one side of the worm wheel (8063), a mounting seat (8065) matching the worm (8064) is provided at the bottom end of the turntable (803), and an end of the worm (8064) penetrates the side wall of one end of the mounting seat (8065) and is connected to a servo motor (8066).

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