Box staff

Abstract

The box staff comprises a base, a storage assembly, a plurality of rod bodies and a driving assembly, the storage assembly comprises a rotating seat rotatably installed at the top end of the base and a plurality of containing grooves axially penetrating through the rotating seat, and the rod bodies are arranged in the containing grooves in a one-to-one correspondence mode; compared with a traditional telemeter rod which is of a telescopic structure, the telemeter rod has the advantages that the telemeter rod is connected in a separated mode and connected into a whole through the threads and the screw holes, and therefore the situation that the telemeter rod is damaged due to the fact that a node structure is loosened is avoided, and the telemeter rod is not damaged due to the fact that the telemeter rod is connected into a whole through the threads and the screw holes. Meanwhile, a user can adjust the length of the telemeter rod by adding or reducing the rod bodies according to use requirements, and the telemeter rod can be used for measuring the height of a large-size object and can also be used for surveying and mapping.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surveying and mapping, in particular to a tower scale. BACKGROUND

[0002] Tower scales are often used in engineering construction, measurement and other aspects. The traditional tower scale can be stretched, each section has a scale, and the greater the height measured by the tower scale, the more the number of nodes stretched. Due to the structure, the structure of each stretched node is prone to loosening, which can cause inaccurate readings. During measurement, the measurement points are often arranged, the instrument is placed, and various operations of the instrument are completed. As a result, the tower scale is just at the joint of two sections, which cannot be read, and the instrument must be placed again, which is troublesome and time-consuming. Moreover, the length of the existing tower scale is limited, and it cannot be used to measure the height of some large-size objects. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide a tower scale which can be used to measure the height of large-size objects and is not prone to loosening between nodes.

[0004] The technical scheme adopted by the present application to achieve the above purpose is as follows: A tower scale, comprising, a base, a containing cavity is arranged in the base; a storage assembly, comprising a rotating seat rotatably mounted at the top end of the base and a plurality of accommodating grooves axially penetrating the rotating seat, the plurality of accommodating grooves are uniformly arranged along the radial direction of the rotating seat; a plurality of rod bodies, the rod bodies are arranged one by one in the accommodating grooves, and can move axially or radially relative to the accommodating grooves under the action of external force, the top end of the rod body is provided with a screw rod, the bottom end of the rod body is provided with a screw hole threadedly matched with the screw rod, and the edge of the screw hole is uniformly provided with a plurality of protrusions in the radial direction; a driving assembly, comprising a jacking rotating unit, a rotating unit, a driving unit and a switching unit arranged in the containing cavity, the power output end of the rotating unit penetrates the containing cavity and is fixedly connected with the rotating seat, the power input end of the rotating unit is transmissionally connected with the driving unit through the switching unit, so that the driving unit drives the rotating seat to rotate, the power output end of the jacking rotating unit is provided with a groove matched with the protrusion, the power input end of the jacking rotating unit is transmissionally connected with the driving unit through the switching unit, so that the driving unit drives the power output end of the jacking rotating unit to extend out of the containing cavity and cooperate with the protrusion extending into the accommodating groove, so as to push the rod body out of the accommodating groove and drive the rod body to rotate radially, the driving unit is adapted to generate power, and the switching unit is adapted to transmit the power generated by the driving unit to the jacking rotating unit or the rotating unit. A support assembly is mounted on the base, and the support assembly is adapted to lift the rod body out of the accommodating groove.

[0005] Further, the jacking rotating unit comprises a jacking rod, a jacking seat, a driving screw, a first transmission gear, a first driven gear and a linkage gear. The jacking seat is in a U shape, and the opening of the jacking seat is downward. The jacking rod is rotatably mounted at the top end of the jacking seat. A rack is mounted on the inner side of the jacking seat. The first transmission gear is mounted on the inner side of the jacking seat. The rack is in transmission connection with the switching unit through the first transmission gear. The top end of the driving screw is in rotational connection with the cavity wall of the accommodating cavity. The bottom end of the driving screw is provided with the first driven gear. The first driven gear is in transmission connection with the switching unit through the linkage gear. The middle part of the jacking rod is provided with a rotating gear in mesh with the driving screw. The top end of the jacking rod is provided with the groove.

[0006] Further, the rotating unit comprises a rotating shaft and a transmission shaft. One end of the rotating shaft penetrates through the accommodating cavity and is fixedly connected with the rotating seat. The other end of the rotating shaft is provided with a driving gear. One end of the transmission shaft is rotatably mounted in the accommodating cavity. The other end of the transmission shaft is provided with a second transmission gear in transmission connection with the switching unit. The middle part of the transmission shaft is provided with a second driven gear in transmission connection with the driving gear.

[0007] Further, the switching unit comprises a switching cylinder, a frame, a switching rod, a first switching gear, a second switching gear, a first limiting seat, a second limiting seat and a third driven gear. The switching cylinder is mounted on the inner wall of the accommodating cavity. The frame is mounted on the driving end of the switching cylinder. The switching rod is rotatably mounted on the frame, so as to be driven by the switching cylinder to slide along the axial direction of the switching rod. The surface of the switching rod is spaced apart in the radial direction and is provided with a first clamping block and a second clamping block. The first switching gear and the second switching gear are slidably arranged on the switching rod. The third driven gear is fixedly connected with the switching rod. The first switching gear is in mesh with the first transmission gear. The second switching gear is in mesh with the second transmission gear. The third driven gear is in transmission connection with the driving unit and the first driven gear through the linkage gear. The inner side of the first switching gear is provided with a first clamping groove which axially penetrates the first switching gear, so that the first clamping block can enter or exit the first clamping groove when the first switching gear axially slides relative to the switching rod. The first limiting seat is arranged on the inner side of the frame body and is fixedly connected with the cavity wall of the accommodating cavity, and the second limiting seat is arranged on the outer side of the frame body and is fixedly connected with the cavity wall of the accommodating cavity. The first limiting seat and the second limiting seat are provided with through holes for the switching rod to pass through. The first switching gear is located between the frame body and the first limiting seat, and the first limiting seat is adapted to abut against the first switching gear when the switching rod axially slides, so as to limit the displacement of the first switching gear. The second switching gear is located between the frame body and the second limiting seat, and the second limiting seat is adapted to abut against the first switching gear when the switching rod axially slides, so as to limit the displacement of the second switching gear.

[0008] Further, the switching unit further comprises a first elastic member, a second elastic member and a third elastic member. One end of the first elastic member abuts against the first limiting seat, and the other end abuts against the first switching gear. One end of the second elastic member abuts against the frame body, and the other end abuts against the first switching gear. One end of the third elastic member abuts against the frame body, and the other end abuts against the second limiting seat.

[0009] Further, the switching unit further comprises a first friction sleeve and a second friction sleeve. The first friction sleeve and the second friction sleeve are installed at the connection between the frame body and the switching rod. The first switching gear is provided with a first sleeve body at one end thereof facing the first friction sleeve. The first friction sleeve is adapted to move towards or away from the first sleeve body under the driving of the frame body. The first sleeve body is adapted to be embedded in the first friction sleeve when the first friction sleeve moves towards the first sleeve body. The second switching gear is provided with a second sleeve body at one end thereof facing the first switching gear. The second friction sleeve is adapted to move towards or away from the second sleeve body under the driving of the frame body. The second sleeve body is adapted to be embedded in the second friction sleeve when the second friction sleeve moves towards the second sleeve body.

[0010] Further, the thickness of the third driven gear is greater than or equal to the movement distance of the frame body, and the thickness of the first transmission gear is greater than the movement distance of the first switching gear.

[0011] Further, two fixed plates are arranged in parallel and fixed to the inner wall of the accommodating cavity, and the jacking seat is arranged between the two fixed plates and connected with the two fixed plates in a sliding manner, and the two ends of the first transmission gear are connected with the two fixed plates in a rotating manner. Further, a rotating rod and two connecting plates are arranged, the two connecting plates are arranged at the two ends of the rotating rod and connected with the rotating rod in a rotating manner, the two ends of the connecting plate are fixed to the accommodating cavity, and the linkage gear is installed on the rotating rod.

[0012] Further, the driving unit comprises a driving motor fixedly installed on the inner wall of the accommodating cavity and a driving gear installed on the driving end of the driving motor, and the driving gear is engaged with the linkage gear.

[0013] Further, the support assembly comprises a support frame fixedly installed on the base, a support motor and a support plate installed on the support frame, and a plurality of groups of support wheel sets arranged uniformly along the length direction of the support plate, the plurality of groups of support wheel sets are connected through a chain transmission pair, each group of support wheel set comprises two support wheels arranged in parallel and connected with the support plate in a rotating manner, the support wheels are arranged in a dumbbell shape, and the two support wheels in the same group are matched and surrounded to form a cavity matched with the shape of the rod body, the surface of the support wheel is wrapped with a rubber pad, and the support motor is connected with the two support wheels in any group of support wheel set in a transmission manner.

[0014] Beneficial effects: Compared with the traditional tower scale adopting the telescopic structure, the tower scale is divided into groups and connected in one body through the threaded holes, so that the inaccuracy of reading caused by the loosening of the node structure of the tower scale is avoided, and the user can select to increase or reduce the length of the rod body according to the use requirement, so as to adjust the length of the tower scale, that is, the tower scale can be used for measuring the height of large-size objects and surveying; in addition, the rotating seat and the driving assembly are arranged in cooperation, so that the operator can realize the splicing of the rod body in an automatic manner without manual splicing, and the efficiency is high, and the support assembly is arranged in cooperation to support the spliced tower scale, so as to reduce the shaking of the tower scale caused by the wind force during use, thereby improving the accuracy of reading. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic view of the tower scale of the present application; Figure 2 FIG. 4 is a partial cross-sectional view of the tower scale cover of the present application from another angle; Figure 3 FIG. 5 is an enlarged view of position A in FIG. 4; Figure 2 Figure 4 FIG. 6 is a partial cross-sectional view of the tower scale cover of the present application from another angle;​ Figure 5 is Figure 4 enlarged view of B in the middle; Figure 6 is a structural schematic view of a tower scale driving assembly of the present application; Figure 7 is a structural schematic view of a tower scale switching unit of the present application; Figure 8 is a sectional view of a tower scale switching unit of the present application; Figure 9 is Figure 8 enlarged view of C in the middle; Figure 10 is Figure 8 enlarged view of D in the middle; Figure 11 is a structural schematic view of a tower scale second switching gear of the present application; Figure 12 is a structural schematic view of another angle of a tower scale second switching gear of the present application; Figure 13 is a structural schematic view of a tower scale jacking rotating unit of the present application; Figure 14 is a structural schematic view of a tower scale jacking switching rod of the present application; Reference signs: 10, base; 20, storage assembly; 201, rotating seat; 202, accommodating groove; 30, rod body; 301, screw rod; 302, screw hole; 40, driving assembly; 401, jacking rotating unit; 4011, jacking rod; 4012, jacking seat; 4013, driving screw rod; 4014, first transmission gear; 4015, first driven gear; 4016, linkage gear; 4017, rack; 4019, rotating gear; 4020, groove; 402, rotating unit; 4021, rotating shaft; 4022, transmission shaft; 4023, driving gear; 4024, second transmission gear; 4025, second driven gear; 403, driving unit; 4031, driving motor; 4032, driving gear; 404, switching unit; 4041, switching cylinder; 4042, frame body; 4043, switching rod; 40431, first clamping block; 40432, second clamping block; 4044, first switching gear; 40441, first clamping groove; 4045, second switching gear; 40451, second clamping groove; 4046, first limiting seat; 4047, second limiting seat; 4048, third driven gear; 4049, first elastic member; 4050, second elastic member; 4051, third elastic member; 4052, first friction sleeve; 4053, first sleeve body; 4054, second friction sleeve; 4055, second sleeve body; 50, supporting assembly; 501, supporting frame; 502, supporting motor; 503, supporting plate; 504, supporting wheel; 601, fixed plate; 602, rotating rod; 603, connecting plate; 70, supporting leg; 701, first rod body; 702, second rod body; 703, first cylinder; 704, second cylinder. DETAILED DESCRIPTION

[0016] Hereinafter, the present application will be further described with reference to the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0017] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] like Figures 1-14 As shown, a tower gauge includes, Base 10, wherein a receiving cavity is provided inside the base 10; The storage component 20 includes a rotating seat 201 rotatably mounted on the top of the base 10 and a plurality of receiving grooves 202 axially penetrating the rotating seat 201, wherein the plurality of receiving grooves 202 are evenly arranged along the radial direction of the rotating seat 201. A plurality of rods 30 are arranged one-to-one within the receiving groove 202 and can move axially or radially relative to the receiving groove 202 under the action of external force. A screw 301 is provided at the top of each rod 30 and a screw hole 302 is provided at the bottom of each rod 30 for threaded engagement with the screw 301. A plurality of protrusions are evenly arranged along the radial direction on the edge of the screw hole 302 and a scale is provided on the surface of the rod 30. The driving assembly 40 comprises a jacking rotating unit 401, a rotating unit 402, a driving unit 403 and a switching unit 404 arranged in the accommodating cavity, a power output end of the rotating unit 402 penetrates through the accommodating cavity and is fixedly connected with the rotating seat 201, a power input end of the rotating unit 402 is in transmission connection with the driving unit 403 through the switching unit 404, so that the driving unit 403 drives the rotating seat 201 to rotate, a power output end of the jacking rotating unit 401 is provided with a groove 4020 matched with the protrusion, a power input end of the jacking rotating unit 401 is in transmission connection with the driving unit 403 through the switching unit 404, so that the driving unit 403 drives the power output end of the jacking rotating unit 401 to penetrate through the accommodating cavity and be matched with the protrusion in the accommodating groove 202, so as to push the rod body 30 out of the accommodating groove 202 and drive the rod body 30 to rotate radially, the driving unit 403 is adapted to generate power, and the switching unit 404 is adapted to transmit the power generated by the driving unit 403 to the jacking rotating unit 401 or the rotating unit 402. The supporting assembly 50 is installed on the base 10, and the supporting assembly 50 is adapted to lift the rod body 30 away from the accommodating groove 202.

[0021] Specifically, in the embodiment, a circular level is installed on the base 10, and a plurality of supporting legs are uniformly installed on the side surface of the base 10, the supporting leg comprises a first rod body, a second rod body, a first air cylinder and a second air cylinder, the first rod body 30 is hinged to the base 10, the second rod body is hinged to the free end of the first rod body, one end of the first air cylinder is hinged to the base 10, and the other end is hinged to the free end of the first rod body, one end of the second air cylinder is hinged to the fixed end of the first rod body, and the other end is hinged to the middle part of the second rod body, and in this way, the user can control the rotation of the first rod body 30 and the second rod body 30 by controlling the extension and contraction of the first air cylinder and the second air cylinder, so as to adjust the inclination angle of the tower ruler, so that the tower ruler can be kept perpendicular to the horizontal plane, so as to ensure the measurement accuracy, and the circular level can be used to adjust the inclination angle of the tower body in real time according to the actual situation.

[0022] In specific use, the staff member moves the staff to the position to be measured by a trolley or a car, controls the retraction of the first rod body 30 and the second rod body 30 according to the circular level to adjust the inclination angle of the staff so that the staff is perpendicular to the horizontal plane, then the jacking and rotating unit 401 jacks the rod body 30 out of the containing groove 202 until the rod body 30 is clamped by the supporting assembly 50, at this time, the supporting assembly 50 lifts the rod body 30 upward so that the rod body 30 is separated from the containing groove 202, the jacking and rotating unit 401 is retracted, then the rotating unit 402 drives the rotating seat 201 to rotate to rotate the next containing groove 202 to the position below the supporting assembly 50, the supporting assembly 50 drives the rod body 30 to move downward and contact the rod body 30 in the containing groove 202, the rod body 30 clamped by the supporting assembly 50 in the embodiment is named as A, the rod body 30 in the containing groove 202 is named as B, when the supporting assembly 50 drives A to move downward, the screw rod 301 of B is inserted into the screw hole 302 of A, the jacking and rotating unit 401 works to drive B to rotate, in the process, the screw rod 301 of B is screwed into the screw hole 302 of A to connect A and B together, the above operation is repeated until the rod bodies 30 combined together reach the appropriate height, at this time, the weight of the rod body assembly composed of the rod bodies 30 is supported by the rotating seat 201, so that the relative displacement between the rod body assembly and the supporting assembly 50 under the action of gravity during the measurement is avoided to ensure the detection accuracy.

[0023] Specifically, in the embodiment, the jacking and rotating unit 401 comprises a jacking rod 4011, a jacking seat 4012, a driving screw rod 4013, a first transmission gear 4014, a first driven gear 4015 and a linkage gear 4016, the jacking seat 4012 is arranged in a U shape, the opening of the jacking seat 4012 is arranged downward, the jacking rod 4011 is rotatably installed at the top end of the jacking seat 4012, a rack 4017 is installed on the inner side of the jacking seat 4012, the first transmission gear 4014 is installed on the inner side of the jacking seat 4012, the rack 4017 is in transmission connection with the switching unit 404 through the first transmission gear 4014, the top end of the driving screw rod 4013 is in rotation connection with the cavity wall of the containing cavity, the first driven gear 4015 is installed at the bottom end of the driving screw rod 4013, the first driven gear 4015 is in transmission connection with the switching unit 404 through the linkage gear 4016, a rotation gear 4019 engaged with the driving screw rod 4013 is arranged at the middle part of the jacking rod 4011, the recess 4020 is arranged at the top end of the jacking rod 4011.

[0024] When the rod body 30 needs to be ejected from the accommodating groove 202, the switching unit 404 connects the driving unit 403 with the linkage gear 4016 in transmission, so as to rotate the first driven gear 4015 through the linkage of the linkage gear 4016, drive the rotation of the driving screw 4013, drive the rotation of the rotation gear 4019 meshing with the driving screw 4013, rotate the ejector rod 4011, in the process, the first transmission gear 4014 will also rotate under the drive of the driving unit 403, so as to drive the upward movement of the rack 4017 meshing with the first transmission gear 4014, drive the upward movement of the ejector rod 4011 driven by the lifting seat 4012, and make the ejector rod 4011 pass through the opening pre-formed on the base 10 to insert into the accommodating groove 202 and make the groove 4020 engage with the protrusion, so that the ejector rod 4011 can drive the rod body 30 to rotate synchronously in the process of ejecting the rod body 30 from the accommodating groove 202, so that the screw rod 301 can be screwed into the screw hole 302 located above to connect the two rod bodies 30 into one, the driving unit 403 drives the ejector rod 4011 to retract into the cavity, the switching unit 404 disconnects the driving unit 403 from the lifting rotation unit 401 and connects it with the rotation unit 402, so as to avoid the synchronous working of the lifting rotation unit 401 under the drive of the rotation of the rotation seat 201 by the driving unit 403, which causes the lifting rotation unit 401 to be clamped with the rotation seat 201, the driving unit 403 drives the rotation of the rotation seat 201 through the rotation unit 402, so as to rotate the next accommodating groove 202 to the lower side of the supporting assembly 50, and repeat the above operation to construct the rod body assembly for detection, at this time, the rod body located at the lowermost part of the rod body assembly is still in the accommodating groove, and the bottom end of the rod body is still supported by the lifting rotation unit, the supporting assembly and the lifting rotation unit drive the rod body to move downward until the bottom of the rod body in the accommodating groove abuts against the bottom of the accommodating groove, at this time, the weight of the rod body assembly will be supported by the rotation seat, so as to reduce the pressure on the supporting assembly, and further avoid the rod body assembly from sliding into the accommodating groove under the action of gravity during detection, which affects the measurement accuracy; in addition, the rod body in the embodiment is a hollow cylindrical aluminum alloy rod, and the inside of the rod body is provided with a reinforcing rib plate, so that the rod body is light in weight and high in strength; When the rod assembly is disassembled, the rotating unit 402 rotates the empty accommodating groove 202 to below the rod assembly, the supporting assembly 50 drives the rod assembly to move downward, so that the rod 30 below is inserted into the accommodating groove 202, the jacking rod 4011 rotates upward under the action of the jacking seat 4012 and the drive screw 4013, penetrates out of the base 10 and is inserted into the accommodating groove 202 through the opening of the accommodating groove 202, the top end of the jacking rod 4011 abuts against the rod 30, since the jacking rod 4011 is in a rotating state and the rod 30 remains in a stationary state, there is a speed difference between the jacking rod 4011 and the rod 30, so that when abutting, the protrusion at the bottom end of the rod 30 can rotate relative to the jacking rod 4011 and is inserted into the groove 4020 in the rotating process, so as to complete the connection of the jacking rod 4011 and the rod 30, at this time, the jacking rod 4011 can drive the rod 30 to rotate reversely, so that the screw 301 on the rod 30 is screwed out of the screw hole 302 of the other rod 30, the separation of the two rods 30 is realized, then the jacking rod 4011 reversely moves to collect the rod 30 into the accommodating groove 202, the switching unit 404 connects the driving unit 403 and the rotating unit 402 to drive the rotating seat 201 to rotate the next controlled accommodating groove 202 to below the supporting assembly 50, and the above operation is repeated to complete the disassembly of the rod assembly.

[0025] In addition, a limiting ring is installed in the slot at the bottom of the accommodating groove 202, the inner diameter of the limiting ring is the same as the diameter of the jacking rod 4011, and the outer diameter of the limiting ring is the same as the diameter of the rod 30, so that the jacking rod 4011 can extend into the accommodating groove 202 and abut against the rod 30, and meanwhile, the rod 30 is prevented from falling from the slot at the bottom of the accommodating groove 202 under the action of gravity.

[0026] Specifically, the rotating unit 402 comprises a rotating shaft 4021 and a transmission shaft 4022, one end of the rotating shaft 4021 penetrates out of the accommodating cavity and is fixedly connected with the rotating seat 201, the other end of the rotating shaft 4021 is provided with a driving gear 4023, one end of the transmission shaft 4022 is rotatably installed in the accommodating cavity, the other end of the transmission shaft 4022 is provided with a second transmission gear 4024 which is in transmission connection with the switching unit 404, and the middle part of the transmission shaft 4022 is provided with a second driven gear 4025 which is in transmission connection with the driving gear 4023. When working, the switching unit 404 drives the driving unit 403 and the second transmission gear 4024 to be in transmission connection, so that the driving unit 403 can drive the transmission shaft 4022 to rotate through the second transmission gear 4024, and then drive the rotating shaft 4021 to rotate through the second driven gear 4025 and the driving gear 4023, so as to rotate the rotating seat 201.

[0027] Specifically, the switching unit 404 comprises a switching cylinder 4041, a frame body 4042, a switching rod 4043, a first switching gear 4044, a second switching gear 4045, a first limiting seat 4046, a second limiting seat 4047 and a third driven gear 4048, the switching cylinder 4041 is mounted on the inner wall of the accommodating cavity, the frame body 4042 is mounted on the driving end of the switching cylinder 4041, and the switching rod 4043 is rotatably mounted on the frame body 4042, so as to be suitable for the switching cylinder 4041 to drive the switching rod 4043 to slide along the axial direction of the switching rod 4043; The first switching gear 4044 and the second switching gear 4045 are slidably arranged on the switching rod 4043, the third driven gear 4048 is fixedly connected with the switching rod 4043, the first switching gear 4044 is engaged with the first transmission gear 4014, the second switching gear 4045 is engaged with the second transmission gear 4024, and the third driven gear 4048 is in transmission connection with the driving unit 403 and the first driven gear 4015 through the linkage gear 4016; The surface of the switching rod 4043 is spaced apart in the radial direction and provided with a first clamping block 40431 and a second clamping block 40432, the inner side of the first switching gear 4044 is provided with a first clamping groove 40441, the first clamping groove 40441 axially penetrates the first switching gear 4044, so as to be suitable for the first clamping block 40431 to enter or exit the first clamping groove 40441 when the first switching gear 4044 axially slides relative to the switching rod 4043, the inner side of the second switching gear 4045 is provided with a second clamping groove 40451, the second clamping groove 40451 axially penetrates the second switching gear 4045, so as to be suitable for the second clamping block 40432 to enter or exit the second clamping groove 40451 when the second switching gear 4045 axially slides relative to the switching rod 4043; The first limiting seat 4046 is arranged inside the frame body 4042 and is fixedly connected with the cavity wall of the accommodating cavity, the second limiting seat 4047 is arranged outside the frame body 4042 and is fixedly connected with the cavity wall of the accommodating cavity, the first limiting seat 4046 and the second limiting seat 4047 are provided with through holes for the switch rod 4043 to pass through, the first switch gear 4044 is located between the frame body 4042 and the first limiting seat 4046, the first limiting seat 4046 is suitable for abutting against the first switch gear 4044 when the switch rod 4043 axially slides, so as to limit the displacement of the first switch gear 4044, the second switch gear 4045 is located between the frame body 4042 and the second limiting seat 4047, and the second limiting seat 4047 is suitable for abutting against the first switch gear 4044 when the switch rod 4043 axially slides, so as to limit the displacement of the second switch gear 4045.

[0028] In the embodiment, the direction of movement of the first switch gear 4044 towards the second switch gear 4045 is defined as right movement, and the direction of movement of the second switch gear 4045 towards the first switch gear 4044 is defined as left movement, the frame body 4042 is slidably connected with the base of the accommodating cavity through a slide rail or a sliding seat, and both ends of the switch rod 4043 are slidably connected with the side wall of the accommodating cavity. When the switching cylinder 4041 is in the initial state, the second clamping block 40432 is located in the second clamping groove 40451, and the first clamping block 40431 is located outside the first clamping groove 40441. At this time, the driving unit 403 can drive the switching rod 4043 to rotate through the linkage gear 4016, and then drive the second switching gear 4045 to rotate through the second clamping block 40432, so that the rotating shaft 4021 rotates, thereby driving the rotating seat 201 to rotate, so that the accommodating groove 202 on the rotating seat 201 moves to the lower side of the support assembly 50. Then, the switching cylinder 4041 works to drive the frame body 4042 to move to the right. In this process, the first limiting seat 4046 and the second limiting seat 4047 limit the displacement of the first switching gear 4044 and the second limiting gear, so that the first clamping block 40431 and the second clamping block 40432 arranged on the switching rod 4043 are relatively displaced with the first switching gear 4044 and the second switching gear 4045. The first clamping block 40431 enters the first clamping groove 40441 to drive the first switching gear 4044 and the switching rod 4043 to be connected in transmission, and at the same time, the second clamping block 40432 is separated from the second clamping groove 40451 to disconnect the second switching gear 4045 and the switching rod 4043. At this time, the driving unit 403 can drive the first switching gear 4044 to rotate through the first clamping block 40431 to drive the jack 4011 to move upward together with the lifting seat 4012, thereby driving the rod body 30 to be ejected from the accommodating groove 202. In this process, the jack 4011 is always connected with the driving unit 403 through the linkage gear 4016, so that the jack 4011 can always rotate during the upward movement of the lifting seat 4012, thereby driving the rod body 30 to rotate to connect it with the rod body 30 located above. The support assembly 50 moves upward to lift the rod assembly connected by the two rod bodies 30, so that the rod body 30 located below is separated from the accommodating groove 202. The driving unit 403 drives the lifting seat 4012 to move downward to separate the jack 4011 from the accommodating groove 202. The switching cylinder 4041 drives the switching rod 4043 to move to the left to make the second clamping block 40432 enter the second clamping groove 40451, and the first clamping block 40431 is separated from the first clamping groove 40441. The driving unit 403 drives the rotating seat 201 to rotate to rotate the next accommodating groove 202 to the lower side of the support assembly 50.

[0029] Since the first switching gear 4044 and the second switching gear 4045 are sleeved on the switching rod 4043, when the switching rod 4043 rotates, there is a rotational speed difference between the first switching gear 4044, the second switching gear 4045 and the first clamping block 40431 and the second clamping block 40432. When the first clamping block 40431 is driven by the driving cylinder to enter the first switching gear 4044, the first clamping block 40431 will first abut against the first switching gear 4044, and the first clamping block 40431 and the first switching gear 4044 will rotate relative to each other until the first clamping block 40431 and the first clamping groove 40441 on the first switching gear 4044 are aligned. At this time, the first clamping block 40431 can slide into the first clamping groove 40441. In order to avoid the first clamping block 40431 and the second clamping block 40432 from being clamped with the first limiting seat 4046 or the second limiting seat 4047 when they are separated from the first clamping groove 40441 and the second clamping groove 40451, a certain gap is formed between the first limiting seat 4046 and the second limiting seat 4047 and the switching rod 4043. The width of the gap is greater than the height of the first clamping block 40431 and the second clamping block 40432, so that the first clamping block 40431 or the second clamping block 40432 is prevented from abutting against the first limiting seat 4046 or the second limiting seat 4047 when they are separated from the first clamping groove 40441 or the second clamping groove 40451, thereby preventing the switching rod 4043 from being stuck.

[0030] Since the first clamping block 40431 and the second clamping block 40432 are clamped into the first clamping groove 40441 or the second clamping groove 40451 by using the rotational speed difference, when the switching cylinder 4041 drives the switching rod 4043 to move to the right or to the left, a certain stroke needs to be moved first, so that the first clamping block 40431 or the second clamping block 40432 abuts against the first switching gear 4044 or the second switching gear 4045, and the pressure of the first clamping block 40431 or the second clamping block 40432 acting on the first switching gear 4044 or the second switching gear 4045 cannot be too large, so as to prevent the first switching gear 4044 or the second switching gear 4045 from being stuck. The first clamping block 40431 or the second clamping block 40432 can continue to move only after being clamped into the first clamping groove 40441 or the second clamping groove 40451. This process is difficult to control. Therefore, in the embodiment, the switching unit 404 further includes a first elastic member 4049, a second elastic member 4050 and a third elastic member 4051. One end of the first elastic member 4049 abuts against the first limiting seat 4046, and the other end abuts against the first switching gear 4044. One end of the second elastic member 4050 abuts against the frame body 4042, and the other end abuts against the first switching gear 4044. One end of the third elastic member 4051 abuts against the frame body 4042, and the other end abuts against the second limiting seat 4047.

[0031] With this arrangement, during the movement of the frame 4042 to the right with the driving of the switching rod 4043, the first elastic member 4049 and the second elastic member 4050 will extrude the first switching gear 4044, thereby increasing the friction between the first switching gear 4044 and the first elastic member 4049 and the second elastic member 4050, further limiting the rotation speed of the first switching gear 4044, increasing the rotation speed difference between the first switching gear 4044 and the first clamping block 40431, until the first clamping block 40431 abuts against the first switching gear 4044, at this time, the second elastic member 4050 is compressed to the limit state, and can still be compressed, the switching cylinder 4041 continues to work without stopping, the first clamping block 40431 rotates relative to the first switching gear 4044 to slide into the first clamping groove 40441, and similarly when the frame 4042 is moved to the left by the switching cylinder 4041, the second clamping block 40432 will also abut against the second switching gear 4045 and drive the third elastic member 4051 to compress, thereby without stopping the control of the switching cylinder 4041, the transmission connection between the second clamping block 40432 and the second switching gear 4045 can be completed; In addition, in order to avoid that when the first clamping block 40431 or the second clamping block 40432 is separated from the first switching gear 4044 or the second switching gear 4045, the first switching gear 4044 or the second switching gear 4045 rotates with the switching rod 4043 under the drive of the friction force, therefore in this embodiment, the switching unit 404 further comprises a first friction sleeve 4052 and a second friction sleeve 4054, the first friction sleeve 4052 and the second friction sleeve 4054 are installed at the connection between the frame 4042 and the switching rod 4043, the first switching gear 4044 is provided with a first sleeve body 4053 at one end thereof facing the first friction sleeve 4052, the first friction sleeve 4052 is adapted to move towards or away from the first sleeve body 4053 under the driving of the frame 4042, and the first sleeve body 4053 is adapted to be embedded in the first friction sleeve 4052 when the first friction sleeve 4052 moves towards the first sleeve body 4053; The second switching gear 4045 is provided with a second sleeve body 4055 at one end thereof facing the first switching gear 4044, the second friction sleeve 4054 is adapted to move towards or away from the second sleeve body 4055 under the driving of the frame 4042, and the second sleeve body 4055 is adapted to be embedded in the second friction sleeve 4054 when the second friction sleeve 4054 moves towards the second sleeve body 4055.

[0032] Specifically, when the switching unit 404 drives the first switching gear 4044 and the switching rod 4043, the switching cylinder 4041 drives the switching rod 4043 to move to the right, the second clamping block 40432 is separated from the second clamping groove 40451, and the second sleeve body 4055 is partially embedded in the second friction sleeve 4054, so as to utilize the friction between the second friction sleeve 4054 and the second sleeve body 4055 to limit the rotation of the second switching gear 4045, at the same time, the first clamping block 40431 will enter the first clamping groove 40441, so that the switching rod 4043 can drive the first switching gear 4044 to rotate synchronously, the jacking seat 4012 drives the jacking rod to move upwards, when the jacking seat 4012 drives the jacking rod to move to the preset position, the switching cylinder 4041 continues to drive the switching rod 4043 to move to the right, so that the first clamping block 40431 is separated from the first clamping groove 40441, and the first sleeve body 4053 is embedded in the first friction sleeve 4052, so as to limit the rotation of the first switching gear 4044, to avoid the jacking seat 4012 from moving downwards under the action of gravity, while the second sleeve body 4055 will continue to penetrate into the second friction sleeve 4054 without affecting the movement of the switching rod 4043, since the driving screw 4013 is always in meshing state with the third driven gear 4048, so that the jacking rod can be in a rotating state to tighten or loosen the rod body 30 with the rod body 30 located above, when it is necessary to retract the jacking rod and rotate the rotating seat 201, the reverse operation according to the above operation mode can be performed, the second elastic member 4050 and the third elastic member 4051 are arranged, and when the switching rod 4043 moves reversely, they will restore to the original state under the action of the elastic force, so as to separate the first sleeve body 4053 and the second sleeve body 4055 from the first friction sleeve 4052 and the second friction sleeve 4054, in addition, in the embodiment, the distance between the first sleeve body 4053 and the first friction sleeve 4052 is smaller than the distance between the second sleeve body 4055 and the second friction sleeve 4054, so that when the switching rod 4043 moves to the right, the second sleeve body 4055 can first penetrate into the second friction sleeve 4054, and in order to improve the limiting effect of the first friction sleeve 4052 and the second friction sleeve 4054 on the first sleeve body 4053 and the second sleeve body 4055, rubber pads can be arranged inside the first friction sleeve 4052 and the second friction sleeve 4054 to enhance the friction.

[0033] In the embodiment, the jacking and rotating unit 401 can of course adopt a driving unit composed of a rotating motor, a screw and a lifting motor, the screw is installed at the driving end of the lifting motor, the axial direction of the screw is parallel to the axial direction of the rotating seat, the rotating motor is in transmission connection with the screw, and the rotation of the screw can drive the cylinder to move upwards or downwards along the axial direction of the rotating seat, the jacking rod is installed at the driving end of the rotating motor or in transmission connection with the jacking rod, so that the rotating motor can drive the jacking rod to rotate; However, in this way, the rod assembly will exert an axial load on the main shaft of the rotating motor, thereby shortening the service life of the rotating motor. If a transmission assembly is additionally provided to connect the main shaft of the rotating motor with the lifting rod, the axial load of the rod assembly on the rotating motor can be avoided, but the overall size of the lifting rotating unit will be inevitably increased; The transmission connection between the switching unit and the driving unit can cancel the provision of the rotating motor and the lifting motor, thereby reducing the cost. The load of the rod assembly can be applied to the frame body instead of the driving unit, thereby prolonging the service life of the driving unit. The first friction sleeve and the second friction sleeve are provided to lock the other unit when the switching unit switches the unit in transmission connection with the driving unit. The other unit can work under the action of friction without the need of an additional locking structure. The load generated during locking is transmitted to the frame body and the switching rod by means of friction or pressure, and is transmitted to the base through the guide rail or the sliding seat connected with the frame body or directly to the base, thereby prolonging the service life of the driving unit.

[0034] In addition, in order to keep the linkage gear 4016 in engagement with the third driven gear 4048 during the movement of the frame body 4042, the thickness of the third driven gear 4048 is greater than or equal to the movement distance of the frame body 4042, and the thickness of the first transmission gear 4014 is greater than the movement distance of the first switching gear 4044, so that the first switching gear 4044 can keep engagement with the first transmission gear 4014 during the movement.

[0035] Specifically, the embodiment further comprises two fixed plates 601, which are arranged in parallel at intervals in the accommodating cavity and are fixedly connected with the inner wall of the accommodating cavity. The lifting seat 4012 is arranged between the two fixed plates 601 and is in sliding connection with the two fixed plates 601. The two ends of the first transmission gear 4014 are rotatably connected with the two fixed plates 601, respectively. The embodiment further comprises a rotating rod 602 and two connecting plates 603. The two connecting plates 603 are arranged at the two ends of the rotating rod 602 and are rotatably connected with the rotating rod 602. The two ends of the connecting plate 603 are fixedly connected with the accommodating cavity. The linkage gear 4016 is installed on the rotating rod 602. In the embodiment, the first limiting seat 4046 is installed on one of the fixed plates 601, so as to fix the first limiting seat 4046 with the inner wall of the accommodating cavity through the fixed plate 601.

[0036] The driving unit 403 comprises a driving motor 4031 fixedly installed on the inner wall of the accommodating cavity and a driving gear 4032 installed on the driving end of the driving motor 4031, which is engaged with the linkage gear 4016.

[0037] Specifically, the support assembly 50 comprises a support frame 501 fixedly installed on the base 10, a support motor 502 and a support plate 503 installed on the support frame 501, and a plurality of groups of support wheels 504 arranged uniformly along the length direction of the support plate 503, wherein the plurality of groups of support wheels 504 are connected through a chain transmission pair, each group of support wheels 504 comprises two support wheels 504 arranged at intervals and rotatably connected with the support plate 503, the support wheels 504 are arranged in dumbbell shape, the two support wheels 504 in the same group are matched and enclose a cavity which is adapted to the shape of the rod body 30, the surface of the support wheels 504 is wrapped with rubber pads, and the support motor 502 is drivingly connected with the two support wheels 504 in any group of support wheels 504.

[0038] In working, the rod body 30 is pushed into the cavity formed by the two support wheels 504 by the ejector rod 4011, the support motor 502 is operated to drive the support wheels 504 to rotate, so as to drive the rod body 30 to move upward by the friction between the support wheels 504 and the rod body 30, so as to pull out the rod body 30 from the accommodating groove 202, and in order to facilitate the support wheels 504 to drive the rod body 30 to move upward, the rubber pads are attached to the surface of the support wheels 504 in this embodiment, which can enhance the friction between the support wheels 504 and the surface of the rod body 30 when the support wheels 504 rotate, and on the other hand, the rubber pads attached to the surface of the support wheels 504 will be deformed when the rod body 30 is inserted between the two support wheels 504, so as to clamp the rod body 30 and provide support for the rod body 30.

[0039] The above is a further detailed description of the present application in combination with the specific embodiments, and cannot be deemed to limit the specific embodiments of the present application to these descriptions. For the ordinary skilled in the art to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or replacements can be made, which shall be deemed to fall within the protection scope of the present application as determined by the claims.

Claims

1. A type of measuring rod, characterized in that: include, A base, wherein a receiving cavity is provided inside the base; The storage component includes a rotating seat rotatably mounted on the top of the base and a plurality of receiving slots axially penetrating the rotating seat, the plurality of receiving slots being evenly arranged along the radial direction of the rotating seat. Several rods are arranged one-to-one in the receiving groove and can move axially or radially relative to the receiving groove under the action of external force. A screw is provided at the top of the rod and a screw hole is provided at the bottom of the rod to be threaded with the screw. Several protrusions are evenly arranged on the edge of the screw hole in the radial direction. The drive assembly includes a lifting and rotating unit, a rotating unit, a drive unit, and a switching unit disposed within the receiving cavity. The power output end of the rotating unit extends out of the receiving cavity and is fixedly connected to the rotating seat. The power input end of the rotating unit is connected to the drive unit via the switching unit, so as to be adapted for the drive unit to drive the rotating seat to rotate. The power output end of the lifting and rotating unit has a groove adapted to the protrusion. The power input end of the lifting and rotating unit is connected to the drive unit via the switching unit, so as to be adapted for the drive unit to drive the power output end of the lifting and rotating unit to extend out of the receiving cavity and extend into the receiving groove to cooperate with the protrusion, so as to push the rod out of the receiving groove and drive the rod to rotate radially. The drive unit is adapted to generate power, and the switching unit is adapted to transmit the power generated by the drive unit to the lifting and rotating unit or the rotating unit. A support assembly, mounted on the base, is adapted to lift the rod that has disengaged from the receiving groove.

2. The telemeter according to claim 1, characterized in that: The lifting and rotating unit includes a push rod, a lifting seat, a drive screw, a first transmission gear, a first driven gear, and a linkage gear. The lifting seat is U-shaped with its opening facing downwards. The push rod is rotatably mounted on the top of the lifting seat. A rack is mounted on the inner side of the lifting seat. The first transmission gear is mounted on the inner side of the lifting seat. The rack is connected to the switching unit via the first transmission gear. The top of the drive screw is rotatably connected to the cavity wall. The bottom of the drive screw is mounted on the first driven gear, which is connected to the switching unit via the linkage gear. A rotating gear meshing with the drive screw is provided in the middle of the push rod. The top of the push rod has the groove.

3. The telemeter according to claim 2, characterized in that: The rotating unit includes a rotating shaft and a transmission shaft. One end of the rotating shaft extends out of the receiving cavity and is fixedly connected to the rotating seat. A drive gear is installed at the other end. One end of the transmission shaft is rotatably installed in the receiving cavity. A second transmission gear that is connected to the switching unit is installed at the other end of the transmission shaft. A second driven gear that is connected to the drive gear is installed in the middle of the transmission shaft.

4. The telemeter according to claim 3, characterized in that: The switching unit includes a switching cylinder, a frame, a switching rod, a first switching gear, a second switching gear, a first limiting seat, a second limiting seat, and a third driven gear. The switching cylinder is installed on the inner wall of the receiving cavity, the frame is installed on the driving end of the switching cylinder, and the switching rod is rotatably installed on the frame to be suitable for the switching cylinder to drive the switching rod to slide along the axial direction of the switching rod. The surface of the switching rod is provided with a first locking block and a second locking block spaced apart in the radial direction. The first switching gear and the second switching gear are slidably disposed on the switching rod. The third driven gear is fixedly connected to the switching rod. The first switching gear meshes with the first transmission gear. The second switching gear meshes with the second transmission gear. The third driven gear is connected to the drive unit and the first driven gear through the linkage gear. The first switching gear has a first slot on its inner side, which axially extends through the first switching gear, so that when the first switching gear slides axially relative to the switching rod, the first locking block can enter or leave the first slot. The second switching gear has a second slot on its inner side, which axially extends through the second switching gear, so that when the second switching gear slides axially relative to the switching rod, the second locking block can enter or leave the second slot. The first limiting seat is disposed inside the frame and fixedly connected to the cavity wall. The second limiting seat is disposed outside the frame and fixedly connected to the cavity wall. The first and second limiting seats have through holes for the switching rod to pass through. The first switching gear is located between the frame and the first limiting seat. The first limiting seat is adapted to abut against the first switching gear when the switching rod slides axially to limit the displacement of the first switching gear. The second switching gear is located between the frame and the second limiting seat. The second limiting seat is adapted to abut against the first switching gear when the switching rod slides axially to limit the displacement of the second switching gear.

5. The telemeter according to claim 4, characterized in that: The switching unit further includes a first elastic element, a second elastic element, and a third elastic element. One end of the first elastic element abuts against the first limiting seat, and the other end abuts against the first switching gear. One end of the second elastic element abuts against the frame, and the other end abuts against the first switching gear. One end of the third elastic element abuts against the frame, and the other end abuts against the second limiting seat.

6. The telemeter according to claim 4, characterized in that: The switching unit further includes a first friction sleeve and a second friction sleeve. The first friction sleeve and the second friction sleeve are installed at the connection between the frame and the switching rod. A first sleeve body is provided at one end of the first switching gear facing the first friction sleeve. The first friction sleeve is adapted to move toward or away from the first sleeve body under the drive of the frame. The first sleeve body is adapted to be embedded in the first friction sleeve when the first friction sleeve moves toward the first sleeve body. The second switching gear has a second sleeve at one end facing the first switching gear. The second friction sleeve is adapted to move toward or away from the second sleeve under the drive of the frame. The second sleeve is adapted to be embedded in the second friction sleeve when the second friction sleeve moves toward the second sleeve.

7. The telemeter according to claim 5, characterized in that: The thickness of the third driven gear is greater than or equal to the movement distance of the frame, and the thickness of the first transmission gear is greater than the movement distance of the first switching gear.

8. The telemeter according to claim 2, characterized in that: It also includes two fixed plates, which are arranged parallel to each other in the receiving cavity and fixed to the inner wall of the receiving cavity. The lifting seat is arranged between the two fixed plates and is slidably connected to the two fixed plates. The two ends of the first transmission gear are respectively rotatably connected to the two fixed plates. It also includes a rotating rod and two connecting plates. The two connecting plates are disposed at both ends of the rotating rod and are rotatably connected to the rotating rod. Both ends of the connecting plates are fixedly connected to the receiving cavity. The linkage gear is installed on the rotating rod.

9. The telemeter according to claim 4, characterized in that: The drive unit includes a drive motor fixedly installed on the inner wall of the receiving cavity and a drive gear installed on the drive end of the drive motor, the drive gear meshing with the linkage gear.

10. The telemeter according to claim 1, characterized in that: The support assembly includes a support frame fixedly mounted on the base, a support motor and a support plate mounted on the support frame, and several sets of support wheels evenly arranged along the length of the support plate. The several sets of support wheels are connected by a chain drive pair. Each support wheel set includes two spaced-apart support wheels that are rotatably connected to the support plate. The support wheels are dumbbell-shaped. The two support wheels in the same set cooperate to form a cavity that fits the shape of the rod. The surface of the support wheels is covered with a rubber pad. The support motor is driven by two support wheels in any of the support wheel sets.

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