Surveying and mapping instrument for engineering surveying and mapping

Abstract

The invention relates to the technical field of surveying and mapping instruments and discloses a surveying and mapping instrument for engineering surveying and mapping, the surveying and mapping instrument for engineering surveying and mapping comprises a middle plate, a surveying and mapping instrument body and a support, the top surface of the middle plate is connected with the surveying and mapping instrument body, and the bottom surface of the middle plate is connected with the support; a detachable shading piece is arranged on the surveying instrument body, and the shading piece is used for separating an external light source from a lens of the surveying instrument body. The surveying and mapping instrument for engineering surveying and mapping is further provided with the shading piece, the shading piece is used for shading the surveying and mapping instrument body, and the influence of external light on the surveying and mapping instrument body is reduced. Besides, the shading piece can form a shaded shadow area at the surveying instrument body, the temperature of the surveying instrument for engineering surveying and mapping rises more slowly under the condition of high temperature, and the influence of external high temperature on the surveying instrument body is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying and mapping instruments, and in particular to a surveying and mapping instrument for engineering surveying and mapping. Background Art

[0002] Land planning refers to the strategic layout of land development, utilization, management, and protection within a specific area, based on the needs of sustainable socioeconomic development and natural conditions. Prior to land planning, data measurements are conducted to accurately determine the area's status and provide data support for subsequent land planning.

[0003] In the surveying process, a surveying instrument will be used. Taking the measurement of a total station as an example, the total station is rotatably set on a tripod, and the position of the total station is moved by manpower to measure data at different measuring points. It has a simple structure and is easy to use.

[0004] During the measurement process, especially under conditions of sufficient sunlight, external light will affect the measurement accuracy of the surveying instrument. However, due to the simple structure of existing surveying instruments, they are not capable of eliminating external light. Therefore, the use of existing surveying instruments is limited. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that external light may affect the measurement accuracy of a surveying instrument. The purpose is to provide a surveying instrument for engineering surveying to solve the above problem.

[0006] The present invention is achieved through the following technical solutions: A surveying instrument for engineering surveying and mapping, comprising an intermediate plate, an instrument body and a bracket, wherein the top surface of the intermediate plate is connected to the instrument body, and the bottom surface of the intermediate plate is connected to the bracket; The surveying instrument body is provided with a detachable light shielding member, which is used to separate the external light source from the lens of the surveying instrument body.

[0007] In one possible design, the surveying instrument body includes a base, side panels, a handle, and an instrument; the base is rotatably mounted on the middle panel and connected to the handle via the side panels; the side panels are provided with two opposed side panels, and a mounting gap is formed between the two side panels. The handle is located above the mounting gap, and the ends of the handle are respectively connected to the two side panels; the instrument is rotatably connected to the side panels and mounted in the mounting gap. The light shielding member comprises a folding plate detachably arranged on the outside of the side plate portion and a handle plugged into the handle portion. Accordingly, the handle portion is constructed as an arc-shaped cylinder with an open upper portion.

[0008] In one possible design, the folding plate includes a rubber plate, a base rod and an elastic portion; The rubber plate has two opposite sides, one of which is provided with a snap-in hole for connecting with a handle, and the other side is connected with a plurality of base rods; Several base rods are arranged on the rubber plate at equal intervals, and two adjacent base rods are connected by elastic parts; The folding plate has a folding station and an unfolding station. Accordingly, when the shielding plate is in the folding position, the rubber plate is in a straight strip shape, and adjacent base rods are parallel and spaced apart from each other; when the folding plate is in the unfolding position, the rubber plate is bent into a semicircle and forms a semi-hole structure for connecting the handle, the base rods are evenly distributed around the circumference of the rubber plate, and the elastic part is stretched out.

[0009] In one possible design, two folding plates are provided and are detachably mounted on the two side panels. Accordingly, when the two folding plates are in the folding position, the two folding plates are respectively mounted on the two side panels. When the two folding plates are in the unfolding position, the two folding plates are removed from the side panels, and the rubber plates of the two folding plates abut against each other. The two half-hole structures are connected to form a clamping hole adapted for the handle. Correspondingly, an outer convex strip is provided on the outermost base rod of one folding plate, and an inner groove is provided on the base rod of the other folding plate. When the two folding plates are unfolded and abut against each other, the outer convex strip is inserted into the inner groove and connects the two folding plates.

[0010] In a possible design, the handle includes a handle body, a spherical seat and a clamping member; The handle has two opposite ends, one end of which is connected to the spherical seat, and the other end is provided with a clamping piece; the spherical seat is used to rotate relative to the handle portion, and the clamping piece is used to connect to the folding plate; The handle has a first position and a second position. Accordingly, when the handle is in the first position, the handle is inserted into the handle part; when the handle is in the second position, the handle body is at least partially located outside the handle part, and the lower end of the handle body is connected to the handle part by sliding and rotating through the spherical seat, and the upper end of the handle body is connected to the folding plate through the clip.

[0011] In one possible design, the clamping member includes a blocking bar, a driving plate, a transmission plate and a clamping plate; The baffle is arranged on the outer periphery of the handle body, and two notches are provided on the baffle, and a driving plate is slidably arranged on each notch; The transmission plate is rotatably arranged in the handle body, and has upper and lower surfaces opposite to each other, the upper surface is connected to the clamping plate through a spiral groove, and the lower surface is connected to the driving plate through a transmission tooth groove; Correspondingly, the card plate is slidably arranged in the handle body and reciprocates under the drive of the transmission plate, so that the card plate slides out of the handle body and is inserted into the card hole of the folding plate; Correspondingly, the two driving plates are provided with transmission tooth segments with opposite rotation directions, so that the two driving plates drive the transmission plate to rotate back and forth, thereby causing the clamping plate to slide back and forth.

[0012] In one possible design, the drive plate is connected to the handle body via an elastic member, an outwardly extending slide rod is provided on the drive plate, and a guide groove for guiding the movement direction of the drive plate is provided in the handle body, and accordingly, the slide rod is slidably arranged on the guide groove; The guide groove includes a first section parallel to the transmission plate, a second section inclined downward, an arcuate first reversing section, an upwardly inclined third section, and an arcuate second reversing section. The first section, the second section, the first reversing section, the third section, and the second reversing section are sequentially connected to form an annular closed groove. Correspondingly, the driving plate is pressed to slide through the first section, the second section and the first reversing section in sequence, and the driving plate is released so that the driving plate slides through the third section, the second reversing section in sequence under the action of the elastic member and resets.

[0013] In one possible design, a telescopic rod is provided on the handle body, and correspondingly, a receiving slot adapted for the telescopic rod is provided on the handle body; The telescopic rod includes an outer rod and an inner rod; One end of the outer rod is rotatably connected to the side wall of the receiving slot through a hinge seat, and the other end of the outer rod is open; The inner rod is slidably and rotatably arranged on the outer rod. Accordingly, the inner rod is passed through the outer rod. One end of the inner rod is connected to the outer rod through a spring. The other end of the inner rod is located outside the open end of the outer rod and is provided with an elastic block. The elastic block has a tightening position and a moving position through the rotation of the inner rod. An annular groove is provided on the inner rod, and a push handle is provided on the annular groove for pushing the inner rod to slide back and forth. Correspondingly, a sliding groove adapted to the push handle is provided on the outer rod.

[0014] In a possible design, a foldable folding frame is provided on the side panel portion, and a first slideway adapted to the elastic stop block is provided on the folding frame.

[0015] In one possible design, the folding frame is connected to the side plate portion via a steering wheel, and the ends of the folding frame are provided with abutment plates and threaded sleeves spaced apart from each other; The steering wheel includes a semi-circular disc, an additional plate and a clamping rod connected in sequence. The semi-circular disc is provided with a second semicircular slide. The end of the folding frame is passed through the semi-circular disc, and the abutment plate and the threaded sleeve are respectively located at both ends of the semi-circular disc to tighten or detach the semi-circular disc through the reciprocating rotation of the threaded sleeve; the clamping rod is used to connect the side plate.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The engineering surveying and mapping instrument is also equipped with a light shielding member that shields the instrument body, reducing the impact of external light on the instrument body. Furthermore, the light shielding member forms a shaded area around the instrument body, which, in high-temperature conditions, allows the temperature of the engineering surveying and mapping instrument to rise more gradually, reducing the impact of high temperatures on the instrument body.

[0017] Based on this, under the condition of ensuring measurement accuracy, the surveying instrument for engineering surveying and mapping can effectively adapt to high-temperature and high-heat field surveying environments, effectively broaden the scope of use of the surveying instrument for engineering surveying and mapping, and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 A schematic diagram of the structure of a surveying instrument for engineering surveying and mapping when the shading member is stored.

[0019] Figure 2 The diagram shows the partial structure of a surveying instrument for engineering surveying when the light shielding member is working.

[0020] Figure 3 It is a structural schematic diagram of the folding plate at the folding station.

[0021] Figure 4 It is a structural schematic diagram of two folding plates in the unfolding position.

[0022] Figure 5 A schematic diagram of the structure of the handle.

[0023] Figure 6 This is a structural diagram of the clamping component when the drive board is pressed.

[0024] Figure 7 This is a structural diagram of the card connector when the drive board is reset.

[0025] Figure 8 Schematic diagram of the structure of the telescopic rod.

[0026] Figure 9 It is a structural diagram of the folding frame and steering wheel.

[0027] Markings and corresponding parts names in the accompanying drawings: 100, middle plate; 200, surveying instrument body; 210, base; 220, side plate; 230, grip; 240, instrument; 300, bracket; 400, light shield; 1, folding plate; 101, rubber plate; 102, base rod; 103, elastic part; 104, snap-fit ​​hole; 105, semi-hole structure; 106, outer convex strip; 107, inner groove; 2, handle; 201, handle body; 202, spherical seat; 203, snap-fit ​​part; 204, stop bar; 205, drive Plate; 206, transmission plate; 207, clamping plate; 208, guide groove; 209, first section; 211, second section; 212, first reversing section; 213, third section; 214, second reversing section; 3, telescopic rod; 301, outer rod; 302, inner rod; 303, spring; 304, elastic block; 305, push handle; 4, folding frame; 401, plate; 402, threaded sleeve; 5, steering wheel; 501, semi-circular disc; 502, additional plate; 503, clamping rod. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0029] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0030] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Therefore, appearances of the phrases "one embodiment," "an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combinations and / or subcombinations. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0032] like Figures 1-9 As shown, a surveying instrument for engineering surveying and mapping includes an intermediate plate 100, a surveying instrument body 200 and a bracket 300. The top surface of the intermediate plate 100 is connected to the surveying instrument body 200, and the bottom surface of the intermediate plate 100 is connected to the bracket 300. The surveying instrument body 200 is provided with a detachable light shielding member 400 , which is used to isolate the external light source from the lens of the surveying instrument body 200 .

[0033] The engineering surveying and mapping instrument includes a middle plate 100, an instrument body 200 and a bracket 300. Its structure and working principle are similar to those of existing equipment, and will not be described in detail here.

[0034] Compared to existing equipment, the engineering surveying and mapping instrument is further equipped with a light shielding member 400, which shields the instrument body 200 and reduces the impact of external light on the instrument body 200. Furthermore, the light shielding member 400 forms a shaded area around the instrument body 200. In high-temperature conditions, the temperature rise of the engineering surveying and mapping instrument is more moderate, reducing the impact of high temperatures on the instrument body 200.

[0035] Based on this, under the condition of ensuring measurement accuracy, the surveying instrument for engineering surveying and mapping can effectively adapt to high-temperature and high-heat field surveying environments, effectively broaden the scope of use of the surveying instrument for engineering surveying and mapping, and improve practicality.

[0036] Furthermore, the light shielding member 400 is detachable. When the light shielding member 400 is needed, it can be removed from the surveying instrument body 200. Conversely, when the light shielding member 400 is not needed, the light shielding member 400 can be stored in the surveying instrument body 200. Therefore, the use of the light shielding member 400 is more flexible.

[0037] In one possible implementation, the surveying instrument body 200 includes a base 210, side panels 220, a handle 230, and an instrument 240. The base 210 is rotatably mounted on the intermediate plate 100 and connected to the handle 230 via the side panels 220. Two side panels 220 are provided and are disposed opposite each other. Accordingly, a mounting gap is formed between the two side panels 220. The handle 230 is located above the mounting gap, and the two ends of the handle 230 are respectively connected to the two side panels 220. The instrument 240 is rotatably connected to the side panels 220 and disposed in the mounting gap. The light shielding member 400 includes a folding plate 1 detachably arranged on the outside of the side plate portion 220 and a handle 2 plugged into the handle portion 230 . Accordingly, the handle portion 230 is constructed as an arc-shaped cylinder with an open upper portion.

[0038] Based on the above design, the side panels 220 of the surveyor body 200 have a larger volume, making it convenient for attaching and storing the shade 400. The shade 400 is folded by means of the folding plate 1, allowing it to be folded and then stored on the side panels 220, further reducing the size and space occupied by the shade 400 when stored. Regarding the handle 2, after the folding plate 1 is removed from the side panels 220, it is connected to the handle 2. This not only increases the distance between the folding plate 1 and the surveyor body 200, improving the shading effect and creating a larger shadow area, but also facilitates the operator's control of the folding plate 1's direction through the handle 2, enabling adjustment of the shade 400 to achieve a more optimal shading effect.

[0039] Accordingly, the handle 2 is accommodated by configuring the handle portion 230 to be a cylindrical structure. Thus, when the handle 2 is connected to the folding board 1, the end of the handle 2 can also slide back and forth along the handle portion 230, and the adjustment of the light shielding member 400 is more directional.

[0040] In one possible implementation, Figure 2-Figure 4 As shown, the folding plate 1 includes a rubber plate 101, a base rod 102 and an elastic part 103; The rubber plate 101 has two opposite sides, one of which is provided with a snap-in hole 104 for connecting to the handle 2, and the other side is connected to a plurality of base rods 102; A plurality of base rods 102 are arranged on the rubber plate 101 at equal intervals, and two adjacent base rods 102 are connected by elastic parts 103; The folding plate 1 has a folding station and an unfolding station. Accordingly, when the shielding plate is in the folding position, the rubber plate 101 is in a straight strip shape, and adjacent base rods 102 are parallel to and spaced apart from each other; when the folding plate 1 is in the unfolding position, the rubber plate 101 is bent into a semicircle and forms a semi-hole structure 105 for connecting the handle 2, the base rods 102 are evenly distributed on the circumference of the rubber plate 101, and the elastic part 103 is stretched out.

[0041] Based on the above design, when the folding plate 1 is in the unfolding position, the elasticity of the rubber plate 101 is utilized to bend the rubber plate 101. The base rod 102 is connected to the rubber plate 101. When the rubber plate 101 bends, the base rod 102 moves with it, making the folding plate 1 assume a fan-shaped or semicircular shape. At the same time, the elastic portion 103 is elastic and deforms to increase the coverage area of ​​the folding plate 1, ensuring effective shielding. Conversely, when the folding cup is in the folding position, the folding plate 1 assumes a plate-like shape, which reduces its volume and space usage, making it easier to place the folding plate 1 on the side panel 220.

[0042] It is worth noting that when folding and unfolding to the unfolding position, the staff can pull the two outermost base rods 102 to make it more convenient to apply force, thereby improving the speed and convenience of unfolding the folding plate 1.

[0043] It is easy to understand that the elastic portion 103 can be made of any suitable elastic material, and the elastic portion 103 should pay attention to light shielding properties to ensure effective light shielding.

[0044] Preferably, two folding plates 1 are provided and are detachably mounted on the two side panels 220. Accordingly, when the two folding plates 1 are in the folding position, the two folding plates 1 are respectively mounted on the two side panels 220. When the two folding plates 1 are in the unfolding position, the two folding plates 1 are removed from the side panels 220, and the rubber plates 101 of the two folding plates abut against each other. The two half-hole structures 105 are connected to form a card hole adapted for the handle 2. Correspondingly, an outer convex strip 106 is provided on the outermost base rod 102 of one of the folding plates 1, and an inner groove 107 is provided on the base rod 102 of the other folding plate. When the two folding plates 1 are unfolded and abut against each other, the outer convex strip 106 is inserted into the inner groove 107 and connects the two folding plates 1.

[0045] Based on the above design scheme, the folding plate 1 is preferably constructed into a semicircle after being unfolded, so that the two folding plates 1 form a complete circle when they are abutted. On the one hand, the shading area is expanded and the area of ​​the shadow area is also larger. On the other hand, the two half-hole structures 105 form a card hole, which improves the firmness and reliability of the connection between the folding plate 1 and the handle 2.

[0046] At the same time, in order to ensure the stability and reliability of the connection between the two folding plates 1, an outer convex strip 106 and an inner groove 107 are provided on the folding plates 1. The outer convex strip 106 is inserted into the inner groove 107 to connect the two folding plates 1. Based on this, the connection structure is simple, the connection effect is good, and the operation is simple and easy.

[0047] It is easy to understand that there are several outer convex strips 106 and inner grooves 107, and their specific numbers can be selected arbitrarily on the basis of ensuring the effectiveness of the connection, which is flexible and convenient to use.

[0048] In one possible implementation, Figure 2 and Figure 5 As shown, the handle 2 includes a handle body 201, a spherical seat 202 and a clamping member 203; The handle 2 has two opposite ends, one end of which is connected to the spherical seat 202, and the other end is provided with a clamping member 203; the spherical seat 202 is used to rotate relative to the grip portion 230, and the clamping member 203 is used to connect to the folding plate 1; The handle 2 has a first position and a second position. Accordingly, when the handle 2 is in the first position, the handle 2 is inserted into the handle portion 230; when the handle 2 is in the second position, the handle body 201 is at least partially located outside the handle portion 230, and the lower end of the handle body 201 slides and rotates through the spherical seat 202 to connect to the handle portion 230, and the upper end of the handle body 201 is connected to the folding plate 1 through the clamping part 203.

[0049] Based on the above design, when the handle 2 is in the first position, i.e., it is stored in the grip portion 230, integrating the handle 2 with the grip portion 230. This increases functionality without increasing space. When the handle 2 is in the second position, i.e., it is removed from the grip portion 230, the handle 2 is mounted on the grip portion 230 via the spherical seat 202. The position and angle of the light shielding member 400 can be adjusted by sliding and / or rotating the spherical seat 202 to achieve a better light shielding effect.

[0050] The handle 2 is connected to the folding plate 1 through the clamping member 203, so that the folding plate 1 is located above the surveying instrument body 200, thereby forming a shield. Specifically: Optionally, as Figure 5-Figure 7 As shown, the clamping member 203 includes a blocking bar 204, a driving plate 205, a transmission plate 206 and a clamping plate 207; The blocking bar 204 is arranged on the outer periphery of the handle body 201, and the blocking bar 204 is provided with two notches, and a driving plate 205 is slidably arranged on each notch; The transmission plate 206 is rotatably disposed in the handle body 201. The transmission plate 206 has upper and lower surfaces opposite to each other. The upper surface is connected to the clamping plate 207 via a spiral groove, and the lower surface is connected to the driving plate 205 via a transmission tooth groove. Accordingly, the clamping plate 207 is slidably disposed in the handle body 201 and reciprocates under the drive of the transmission plate 206 so that the clamping plate 207 slides out of the handle body 201 and is inserted into the clamping hole 104 of the folding plate 1; Correspondingly, the two driving plates 205 are provided with transmission tooth segments with opposite rotation directions, so that the two driving plates 205 drive the transmission plate 206 to rotate back and forth, thereby causing the clamping plate 207 to slide back and forth.

[0051] Based on the above design, after the folding plate 1 is unfolded, the folding plate 1 is placed on the handle body 201 through the semi-hole structure 105 or the latch hole until the folding plate 1 abuts the stop bar 204. At this time, the staff member presses one of the drive plates 205, which transmits power through the transmission teeth to rotate the transmission plate 206 in a first direction. The latch plate 207 slides outward under the drive of the transmission plate 206 until the latch plate 207 is plugged into the latch hole 104 on the rubber plate 101, thereby connecting the folding plate 1 to the handle 2. Conversely, the staff member presses the other drive plate 205 to rotate the transmission plate 206 in a second direction, with the first direction and the second direction being opposite to each other, so that the latch plate 207 slides inward under the drive of the transmission plate 206 until the latch plate 207 is separated from the rubber plate 101 and retracted, thereby releasing the connection between the folding plate 1 and the handle 2.

[0052] Thus, for the staff, they only need to press the corresponding drive plate 205, which is simple and convenient to operate and is conducive to mastering and promoting. It is worth noting that the two drive plates 205 are respectively provided with marks to improve the accuracy of the staff's operation.

[0053] It is easy to understand that there are several card boards 207. On the basis of ensuring the effectiveness of the connection, the specific number can be selected arbitrarily, which is flexible and convenient to use.

[0054] Preferably, if Figure 5-Figure 7 As shown, the driving plate 205 is connected to the handle body 201 through an elastic member. The driving plate 205 is provided with an outwardly extending slide rod. The handle body 201 is provided with a guide groove 208 for guiding the moving direction of the driving plate 205. Accordingly, the slide rod is slidably arranged on the guide groove 208. The guide groove 208 includes a first section 209 parallel to the transmission plate 206, a downwardly inclined second section 211, an arcuate first reversing section 212, an upwardly inclined third section 213, and an arcuate second reversing section 214. The first section 209, the second section 211, the first reversing section 212, the third section 213, and the second reversing section 214 are sequentially connected to form an annular closed groove. Accordingly, the driving plate 205 is pressed to slide through the first section 209, the second section 211 and the first reversing section 212 in sequence, and the driving plate 205 is released so that the driving plate 205 slides through the third section 213, the second reversing section 214 in sequence under the action of the elastic member and resets.

[0055] Based on the above design, the drive plate 205 can slide back and forth through the elastic member to reduce the operator's operation. That is, after the operator presses the drive plate 205, the drive plate 205 is reset through the elastic member.

[0056] Meanwhile, handle 201 is provided with a guide groove 208. When a worker presses drive plate 205, specifically, when drive plate 205 slides along first section 209, drive plate 205 transmits power through the transmission tooth segment, causing transmission plate 206 to rotate. When drive plate 205 slides along second section 211, the downward inclination of second section 211 causes drive plate 205 to move downward and separate from transmission plate 206. After drive plate 205 slides past first reversing section 212, the worker releases the grip, and drive plate 205, under the elastic force of the elastic member, slides through third section 213, then second reversing section 214, and returns to its original position.

[0057] As a result, during the resetting process of the driving plate 205, it is separated from the transmission plate 206, thus preventing the driving plate 205 from resetting and causing the transmission plate 206 to rotate in the opposite direction, and ensuring that the clamping plate 207 maintains unidirectional sliding under the action of the single driving plate 205. In addition, the clamping member 203 not only achieves automatic resetting, but also helps to reduce its size.

[0058] It is easy to understand that when the drive plate 205 is in the initial position, its top surface abuts the transmission plate 206. At this time, the transmission tooth segments on the drive plate 205 are located in the non-contact portion between the drive plate 205 and the transmission plate 206, thereby preventing the transmission tooth segments of both drive plates 205 from being simultaneously connected to the transmission plate 206. Based on this, when a worker presses one of the drive plates 205, the other will not act as a barrier.

[0059] It is easy to understand that the elastic member can be any suitable existing elastic member, and the selection range is wide.

[0060] As for the shading member 400, it realizes shading and forming a shadow area through the mutual cooperation of the folding plate 1 and the handle 2. However, the shading member 400 is connected to the surveying instrument body 200 only through the spherical seat 202 of the handle 2. The connection point is single. In order to ensure the stability of the shading member 400, the staff needs to hold the handle 2 with one hand.

[0061] Therefore, the operation of the staff is inconvenient, which affects the efficiency of surveying and mapping. In this regard, in a possible implementation, the handle body 201 is provided with a telescopic rod 3, and accordingly, the handle body 201 is provided with a receiving groove adapted for the telescopic rod 3.

[0062] Based on the above design, by adding a fulcrum through the telescopic rod 3, the shading member 400 can be placed more stably on the surveying instrument body 200, avoiding the situation where the staff holds it with one hand, thereby ensuring the convenience and efficiency of the staff's surveying.

[0063] In one possible implementation, Figure 2 、 Figure 5 and Figure 8As shown, the telescopic rod 3 includes an outer rod 301 and an inner rod 302; One end of the outer rod 301 is rotatably connected to the side wall of the receiving slot through a hinge seat, and the other end of the outer rod 301 is open; The inner rod 302 is slidably and rotatably arranged on the outer rod 301. Accordingly, the inner rod 302 is inserted into the outer rod 301. One end of the inner rod 302 is connected to the outer rod 301 via a spring 303. The other end of the inner rod 302 is located outside the open end of the outer rod 301 and is provided with an elastic stop 304. The elastic stop 304 has a tightening position and a moving position through the rotation of the inner rod 302. An annular groove is provided on the inner rod 302 , and a push handle 305 is provided on the annular groove for pushing the inner rod 302 to slide back and forth. Correspondingly, a sliding groove adapted to the push handle 305 is provided on the outer rod 301 .

[0064] Based on this design, a worker can move the outer rod 301 from the storage slot to retract or detach the telescopic rod 3, or use the push handle 305 as a fulcrum to move the outer rod 301, which is more convenient. When the outer rod 301 moves out of the storage slot, the worker can use the push handle 305 to push the inner rod 302 to slide along the outer rod 301 to adjust the overall length of the telescopic rod 3.

[0065] The inner rod 302 is provided with an elastic stop 304, which is elastically engaged with the grip portion 230 to fix the length of the telescopic rod 3 and the angle between the telescopic rod 3 and the handle body 201, thereby ensuring that the light shielding member 400 is stable at a certain angle. Conversely, by rotating the inner rod 302, the elastic stop 304 switches to the movable position, disengaging the elastic stop 304 from the grip portion 230, thereby facilitating adjustment of the state of the telescopic rod 3, such as the length of the telescopic rod 3 and the angle between the telescopic rod 3 and the handle body 201.

[0066] Based on this, the push handle 305 is connected to the inner rod 302 through the annular groove on the basis of realizing the reciprocating sliding of the inner rod 302, so as to prevent the push handle 305 from blocking the rotation of the inner rod 302.

[0067] If the handle 2 and the telescopic rod 3 are both connected to the grip portion 230, due to the limited length of the grip portion 230, the angle range between the telescopic rod 3 and the handle body 201 will be smaller, and the overall support effect on the shading member 400 will be poor. Therefore, in one possible implementation method, a foldable folding frame 4 is provided on the side panel portion 220, and the folding frame 4 is provided with a first slide adapted to the elastic stop block 304.

[0068] Based on the above design, the folding frame 4 is used to further widen the connection range of the telescopic rod 3 and expand the angle range between the telescopic rod 3 and the handle body 201 , so that the telescopic rod 3 can better support the shading member 400 .

[0069] It is easy to understand that the folding frame 4 can be constructed into any suitable structure, and the present invention does not impose any limitation on this.

[0070] If the surveyor body 200 rotates during measurement, the light shielding member 400 must remain stationary or rotate in the opposite direction to maintain effective light shielding. The light shielding member 400 can be adjusted by moving the spherical seat 202. However, the telescopic rod 3, especially when connected to the folding frame 4, also requires relative rotation between the telescopic rod 3 and the folding frame 4.

[0071] In order to achieve this function, in one possible implementation, Figure 2 and Figure 9 As shown, the folding frame 4 is connected to the side plate portion 220 through the steering wheel 5, and the end of the folding frame 4 is provided with a stop plate 401 and a threaded sleeve 402 spaced apart from each other; The steering wheel 5 includes a semi-circular disc 501, an additional plate 502 and a clamping rod 503 connected in sequence. The semi-circular disc 501 is provided with a second semicircular slide. The end of the folding frame 4 is passed through the semi-circular disc 501, and the abutment plate 401 and the threaded sleeve 402 are respectively located at both ends of the semi-circular disc 501, so as to tighten or detach from the semi-circular disc 501 through the reciprocating rotation of the threaded sleeve 402; the clamping rod 503 is used to connect the side plate portion 220.

[0072] Based on the above design, when the folding frame 4 needs to be rotated, the threaded sleeve 402 is rotated to disengage the threaded sleeve 402 from the semi-circular disc 501, allowing the end of the folding frame 4 to rotate relative to the semi-circular disc 501. The staff member simultaneously moves the telescopic rod 3 and the light shielding member 400, so that the three are synchronously moved to the appropriate angle. The staff member then rotates the threaded sleeve 402 again to force it against the semi-circular disc 501. The threaded sleeve 402 and the abutment plate 401 cooperate to fix the position of the folding frame 4.

[0073] The steering wheel 5 provides space for the rotation of the folding frame 4 through the arrangement of the semi-circular disc 501 and the second slideway. The additional plate 502 and the clamping rod 503 cooperate with each other, so that the steering wheel 5 is connected to the side plate portion 220.

[0074] Easy to understand, such as Figure 2 As shown, the folding frame 4 includes a main frame body and a diagonal brace, and the main frame body and the diagonal brace are connected to the side plate portion 220 through a steering wheel 5. Accordingly, the ends of the main frame body and the diagonal brace are provided with abutment plates 401 and threaded sleeves 402.

[0075] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, 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 surveying instrument for engineering surveying, characterized in that: It comprises an intermediate plate (100), a surveying instrument body (200) and a bracket (300), wherein the top surface of the intermediate plate (100) is connected to the surveying instrument body (200), and the bottom surface of the intermediate plate (100) is connected to the bracket (300); A detachable light shielding member (400) is provided on the surveying instrument body (200), and the light shielding member (400) is used to separate an external light source from a lens of the surveying instrument body (200).

2. The engineering surveying and mapping instrument according to claim 1, characterized in that: The surveying instrument body (200) comprises a base portion (210), a side panel portion (220), a grip portion (230) and an instrument (240); the base portion (210) is rotatably arranged on the middle plate (100) and connected to the grip portion (230) via the side panel portion (220); two side panels (220) are provided and arranged opposite to each other, and a mounting seam is formed between the two side panels (220); the grip portion (230) is located above the mounting seam, and two ends of the grip portion (230) are respectively connected to the two side panels (220); the instrument (240) is rotatably connected to the side panels (220) and arranged in the mounting seam; The light shielding member (400) comprises a folding plate (1) detachably arranged on the outside of the side plate portion (220) and a handle (2) plugged into the handle portion (230). Accordingly, the handle portion (230) is constructed as an arc-shaped cylinder with an open upper portion.

3. The engineering surveying and mapping instrument according to claim 2, characterized in that: The folding plate (1) comprises a rubber plate (101), a base rod (102) and an elastic portion (103); The rubber plate (101) has two opposite sides, one side of which is provided with a snap-in hole (104) for connecting to the handle (2), and the other side is connected to a plurality of base rods (102); A plurality of base rods (102) are arranged at equal intervals on the rubber plate (101), and two adjacent base rods (102) are connected via an elastic portion (103); The folding plate (1) has a folding station and an unfolding station. Accordingly, when the shielding plate is in the folding station, the rubber plate (101) is in a straight strip shape, and adjacent base rods (102) are parallel to each other and spaced apart; when the folding plate (1) is in the unfolding station, the rubber plate (101) is bent into a semicircle and forms a semi-hole structure (105) for connecting the handle (2), the base rods (102) are evenly distributed in the circumferential direction of the rubber plate (101), and the elastic portion (103) is stretched.

4. The engineering surveying and mapping instrument according to claim 3, characterized in that: Two folding plates (1) are provided and are detachably arranged on the two side plate parts (220). Accordingly, when the two folding plates (1) are both in the folding position, the two folding plates (1) are respectively arranged on the two side plate parts (220); when the two folding plates (1) are both in the unfolding position, the two folding plates (1) are removed from the side plate parts (220), the rubber plates (101) of the two folding plates abut against each other, and the two half-hole structures (105) are connected to form a card hole adapted for the handle (2); Correspondingly, an outermost base rod (102) of one of the folding plates (1) is provided with an outer convex strip (106), and an inner groove (107) is provided on the base rod (102) of the other folding plate. When the two folding plates (1) are unfolded and abut against each other, the outer convex strip (106) is inserted into the inner groove (107) and connects the two folding plates (1).

5. The engineering surveying and mapping instrument according to any one of claims 2 to 4, characterized in that: The handle (2) comprises a handle body (201), a spherical seat (202) and a clamping member (203); The handle (2) has two opposite ends, one end of which is connected to the spherical seat (202) and the other end is provided with a clamping member (203); the spherical seat (202) is used to rotate relative to the grip portion (230), and the clamping member (203) is used to connect to the folding plate (1); The handle (2) has a first position and a second position. Accordingly, when the handle (2) is in the first position, the handle (2) is plugged into the grip portion (230); when the handle (2) is in the second position, the handle body (201) is at least partially located outside the grip portion (230), and the lower end of the handle body (201) is connected to the grip portion (230) by sliding and rotating through the spherical seat (202), and the upper end of the handle body (201) is connected to the folding plate (1) through the clamping member (203).

6. The engineering surveying and mapping instrument according to claim 5, characterized in that: The clamping member (203) includes a blocking bar (204), a driving plate (205), a transmission plate (206) and a clamping plate (207); The blocking bar (204) is arranged on the outer periphery of the handle body (201), and two notches are provided on the blocking bar (204), and a driving plate (205) is slidably arranged on each notch; The transmission plate (206) is rotatably disposed in the handle body (201), and the transmission plate (206) has upper and lower surfaces opposite to each other, the upper surface is connected to the clamping plate (207) via a spiral groove, and the lower surface is connected to the driving plate (205) via a transmission tooth groove; Correspondingly, the clamping plate (207) is slidably disposed in the handle body (201) and reciprocates under the drive of the transmission plate (206), so that the clamping plate (207) slides out of the handle body (201) and is inserted into the clamping hole (104) of the folding plate (1); Correspondingly, the two drive plates (205) are provided with transmission tooth segments with opposite rotation directions, so that the two drive plates (205) drive the transmission plate (206) to rotate back and forth, thereby causing the clamping plate (207) to slide back and forth.

7. The engineering surveying and mapping instrument according to claim 6, characterized in that: The driving plate (205) is connected to the handle body (201) via an elastic member. An outwardly extending sliding rod is provided on the driving plate (205). A guide groove (208) for guiding the moving direction of the driving plate (205) is provided in the handle body (201). Accordingly, the sliding rod is slidably arranged on the guide groove (208). The guide groove (208) includes a first section (209) parallel to the transmission plate (206), a downwardly inclined second section (211), an arcuate first reversing section (212), an upwardly inclined third section (213), and an arcuate second reversing section (214); the first section (209), the second section (211), the first reversing section (212), the third section (213), and the second reversing section (214) are sequentially connected to form an annular closed groove; Correspondingly, the driving plate (205) is pressed to make the driving plate (205) slide through the first section (209), the second section (211) and the first reversing section (212) in sequence, and the driving plate (205) is released to make the driving plate (205) slide through the third section (213), the second reversing section (214) in sequence under the action of the elastic member and reset.

8. The engineering surveying and mapping instrument according to claim 5, characterized in that: A telescopic rod (3) is provided on the handle body (201); correspondingly, a receiving groove adapted to fit the telescopic rod (3) is provided on the handle body (201); The telescopic rod (3) comprises an outer rod (301) and an inner rod (302); One end of the outer rod (301) is rotatably connected to the side wall of the receiving groove through a hinge seat, and the other end of the outer rod (301) is open; The inner rod (302) is slidably and rotatably arranged on the outer rod (301). Accordingly, the inner rod (302) is inserted into the outer rod (301). One end of the inner rod (302) is connected to the outer rod (301) via a spring (303). The other end of the inner rod (302) is located outside the open end of the outer rod (301) and is provided with an elastic stop (304). The elastic stop (304) has a pressing position and a moving position through the rotation of the inner rod (302). An annular groove is provided on the inner rod (302), and a push handle (305) is provided on the annular groove for pushing the inner rod (302) to slide back and forth. Correspondingly, a sliding groove adapted to the push handle (305) is provided on the outer rod (301).

9. The engineering surveying and mapping instrument according to claim 8, characterized in that: A foldable folding frame (4) is provided on the side panel portion (220), and a first slideway adapted to the elastic stop block (304) is provided on the folding frame (4).

10. The engineering surveying and mapping instrument according to claim 9, characterized in that: The folding frame (4) is connected to the side plate portion (220) via the steering wheel (5), and the end of the folding frame (4) is provided with a stop plate (401) and a threaded sleeve (402) spaced apart from each other; The steering wheel (5) comprises a semi-circular disc (501), an additional plate (502) and a clamping rod (503) connected in sequence. A second semi-circular slideway is provided on the semi-circular disc (501). The end of the folding frame (4) is passed through the semi-circular disc (501). The abutment plate (401) and the threaded sleeve (402) are respectively located at two ends of the semi-circular disc (501) so as to abut or disengage the semi-circular disc (501) through the reciprocating rotation of the threaded sleeve (402). The clamping rod (503) is used to connect to the side plate portion (220).

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