Positioning device for urban planning topographic survey

Abstract

The invention discloses a positioning device for urban planning terrain survey, and relates to the technical field of positioning devices.The positioning device comprises a backpack, storage racks, an air bag, a telescopic support and a positioning equipment body, a keel frame body is arranged at the edge of the interior of the backpack, the storage racks are assembled and connected with the keel frame body, and the multiple storage racks are distributed on the two sides and the lower portion of the interior of the backpack; the telescopic support comprises a fixed shaft and an inner shaft, the fixed shaft is fixedly arranged in the center of the upper end of the backpack, the inner shaft is slidably clamped in the fixed shaft, the folded inner shaft is located in the center of the interior of the backpack, an auxiliary support is detachably arranged at the upper end of the inner shaft, and the upper end of the auxiliary support and the positioning equipment body are detachably assembled. Required equipment is put in order and stored in a knapsack mode, carrying and carrying are convenient, the knapsack can play a supporting role, the knapsack can be matched with the telescopic support to directly support the positioning equipment body, and the effect that the positioning equipment can be used at any time after being stopped and is convenient to carry can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of positioning devices, in particular to a positioning device for urban planning topographic survey. Background Art

[0002] Urban planning is to regulate urban development and construction, study the future development of the city, the reasonable layout of the city and the comprehensive arrangement of various urban engineering construction. In the process of urban planning, it is necessary to survey the terrain. There is a positioning device for surveying, which consists of a main body and a bracket. The main body can send and receive signals to locate and mark the terrain, which is convenient for staff to survey the terrain; For example, a positioning device for urban planning topographic surveying disclosed in "CN116858198B" comprises a main body, a bracket and a fixing cylinder, characterized in that the lower end of the main body is fixedly connected with a fixing cylinder, and the bracket is movably inserted in the fixing cylinder, a locking mechanism is provided on the bracket, and a locking hole is provided on the fixing cylinder. When the bracket is inserted into the fixing cylinder, the locking mechanism will enter the locking hole to realize self-locking of the bracket and the fixing cylinder. The present invention improves the structure of the existing positioning device for urban planning topographic surveying. The improved positioning device for urban planning topographic surveying can realize the self-locking effect when the main body and the bracket are installed, so that the fixing process of the main body and the bracket can be made more convenient, and the structural design of the improved positioning device for urban planning topographic surveying is simple and reasonable, and the main body and the bracket can be conveniently disassembled and assembled during disassembly and assembly. However, in the prior art, although traditional positioning equipment such as total stations, GNSS systems and lidars can provide high-precision data, they are often bulky. Topographic surveys often require surveys at multiple locations. Therefore, after surveying at one location, the equipment needs to be disassembled and carried to another location. The transfer process requires workers to hold tripods, positioning equipment and other auxiliary equipment, and the handling operation is relatively inconvenient, especially in environments with complex terrain and the need to climb stairs. It is more laborious to carry the equipment, which greatly increases the carrying burden. Summary of the invention

[0003] In view of the above existing problems, the present invention is proposed.

[0004] The purpose of the present invention is to solve the problem in the prior art that the equipment is bulky and inconvenient to transfer.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: On the one hand, the present invention provides a positioning device for urban planning topographic survey, which includes a backpack, a storage rack, an air bag, a telescopic bracket and a positioning device body. A keel body is provided at the inner edge of the backpack, the storage rack is assembled and connected to the keel body, multiple storage racks are provided and are distributed on both sides and below the backpack, the telescopic bracket includes a fixed shaft and an inner shaft, the fixed shaft is fixedly provided at the center position of the upper end of the backpack, the inner shaft is slidably engaged and arranged inside the fixed shaft, the inner shaft is located at the center position of the backpack after folding, the upper end of the inner shaft is detachably provided with an auxiliary bracket, the upper end of the auxiliary bracket is detachably assembled with the positioning device body, and the auxiliary bracket is arranged on one of the storage racks at the bottom of the backpack after folding, the bottom of the backpack is foldable and has legs, multiple air bags are provided and are evenly distributed on both sides of the backpack, rollers are provided at the bottom of the backpack, a storage and access door is rotatably provided on one side of the front of the backpack, a handrail is provided on the upper side of the backpack away from the storage and access door, and a shoulder strap is provided on the backpack.

[0006] Furthermore, the storage rack includes a frame, a slide and a top cover, the outer wall of the frame is assembled and connected to the keel body, the frame is set with a front opening, the slide is slidably set at the lower part of the frame, the top cover is slidably set at the upper part of the frame, and is set above one inner end and is rotatably connected to the frame through a rotating shaft, the top cover and the slide slide in conjunction, and the slide and the top cover are respectively provided with a buffer layer. When the device is placed in the storage rack, it is pulled out of the frame by pulling the slide, and the top cover slides out at the same time. When the outermost end is pulled out, the top cover rotates around the rotating shaft and unfolds. At this time, the device is stably placed in the slide, and the slide is pushed into the frame. While sliding inward, the top cover resets and closes above the slide and moves into the frame until it slides into the frame.

[0007] Furthermore, a first slide rail and a second slide rail are symmetrically provided on the upper and lower sides of the frame respectively, and slide bars are symmetrically provided on both sides below the slide seat, and the slide bars are slidably engaged with the second slide rails, and both ends of the rotating shaft are slidably arranged in the first slide rails through sliders, and the end surface of the slider is provided with a gear, and the first slide rail is provided with a rack meshing with the gear above the upper side near the outlet end, and the sliding of the top cover is facilitated by the cooperation of the first slide rail and the slider, and the sliding of the second slide rail and the slide bar facilitates the sliding of the slide seat, and the upper side of the slide seat is in contact with the lower side of the top cover, so that the top cover can move smoothly even if the top cover slides only by one slider, and when the top cover moves to the rack, the gear meshes with the rack above, and the gear rotates when it continues to move forward, driving the rotating shaft to rotate, and then driving the top cover to rotate and unfold.

[0008] Furthermore, the sliding seat is provided with a fixed seat on the outer wall at one inner end, and the side walls of the fixed seat are respectively assembled and connected with the sliding block and the end faces of the sliding block through connecting strips, and the connecting strip is rotatably connected with the sliding block. The top cover is provided with an opening at the inner end, and the fixed seat is engaged with the inner wall of the frame. Through the cooperation of the fixed seat and the connecting strip, the sliding block and the sliding bar can be linked to the fixed seat. At this time, the sliding of the sliding seat can drive the upper top cover to move synchronously, and the fixed seat is used to engage with the frame to prevent the sliding seat from sliding out at will after the equipment is stored.

[0009] Furthermore, the inner wall of the frame is provided with a snap-fitting groove, the fixing seat is provided with a snap-fitting block, a limiting plate is rotatably provided on one side of the snap-fitting block, the limiting plate is assembled and connected with the snap-fitting block through a first spring, a limiting groove is provided on one side of the snap-fitting groove for snapping and limiting with the limiting plate, an L-shaped groove is provided in the side wall of the frame facing the limiting groove, the two ends of the L-shaped groove are respectively connected with the limiting groove and the outside, an L-shaped soft strip is slidably provided in the L-shaped groove, one end of the L-shaped soft strip is provided with a push block, and the other end extends outward and is provided with a handle through a second spring, When the slide is pushed into the frame, the installation is completed until the locking block and the locking groove are locked. The limit plate in the locked state is locked in the limit groove under the thrust of the first spring. At this time, the slide cannot be pulled out, and it is necessary to push the handle to drive the L-shaped soft strip to push the push block to be squeezed with the limit plate in the limit groove, and push the limit plate to disengage from the limit groove until the limit plate is reset to the side wall of the locking block. At this time, the slide can be slid out, wherein the L-shaped soft strip is memory metal. When the L-shaped soft strip is pushed, the bending part of the L-shaped soft strip is deformed, and after releasing the hand, it cooperates with the second spring to realize automatic reset.

[0010] Furthermore, a back pad is provided on the back of the backpack, and waist belts are symmetrically provided on both sides below the back pad, and the end faces of the two waist belts are buckled. The provided back pad makes the waist and back of the staff more comfortable when carrying the backpack. After carrying the backpack, the two waist belts are wrapped around the two sides of the waist and buckled and fixed. In this way, most of the weight of the backpack can be transferred to the hip bones through the waist belts, so that most of the weight of the backpack is borne by the strongest legs of the human body, which can reduce the stress on the waist and back and make it easier to transfer the device.

[0011] Furthermore, the outer wall of the inner shaft is provided with a plurality of positioning grooves at intervals above and below, and the side wall of the fixed shaft is slidably penetrated with a positioning rod which is engaged with the positioning groove, and the positioning rod is arranged between an outer end and the outer wall of the fixed shaft and is assembled and connected by a third spring, and mounting seats are respectively provided under the auxiliary bracket and the main body of the positioning device, and the mounting seat is detachably assembled and connected to the upper end of the inner shaft. When the height of the inner shaft is adjusted, the positioning rod is pulled outward so that the third spring is compressed, and the positioning rod arranged at the inner end is separated from the positioning groove. At this time, the height of the inner shaft can be adjusted by pulling the inner shaft up and down. After the height is adjusted, the positioning rod is released, and the tension of the third spring drives the positioning rod to be inserted into the positioning groove to achieve positioning.

[0012] Furthermore, a slot is provided at the upper end of the inner shaft, and a block is provided below the mounting seat that is engaged with the slot, an insertion shaft is slidably penetrated by the side wall of the upper end of the inner shaft, one end of the insertion shaft slides through the side wall of the inner shaft and extends into the block, and the upper end of the insertion shaft that is engaged with the block is inclined, and a fourth spring is provided between the outer side of the inner shaft and the outer end of the insertion shaft. Through the cooperation of the mounting seat and the slot, it is convenient to install the auxiliary bracket on the upper end of the inner shaft to increase the height and adapt to staff of different heights, and it is convenient to assemble the main body of the positioning device. Specifically, when the block slides into the slot, the bottom of the block squeezes the inclined surface of the insertion shaft to make the insertion shaft slide to the outside of the inner shaft, and when the block is completely inserted into the slot, the insertion shaft is inserted into the corresponding groove on one side of the insertion shaft under the action of the fourth spring to ensure installation stability.

[0013] Furthermore, the auxiliary bracket includes a base, a telescopic shaft and a support leg. The lower part of the base is assembled and connected to the upper part of the mounting seat. The telescopic shaft is arranged above the base and the upper end of the telescopic shaft has the same structure as the upper end of the inner shaft. The support leg is provided with multiple and rotatably arranged on both sides below the base. Abutment plates are provided on both sides above the backpack, and the support leg is engaged with the abutment plates. When installing the auxiliary bracket, the support leg is unfolded and placed on the top of the backpack, and the blocking block at the bottom of the mounting seat below the base is engaged with the upper end of the inner shaft. During the engagement process, the support leg continuously slides toward the abutment plate until it is tightly engaged with the abutment plate to ensure the stability of the auxiliary bracket.

[0014] Furthermore, the legs are provided with two and the upper parts are rotatably arranged on both sides of the lower part of the backpack, and the rollers are provided with multiple and arranged at the bottom of the backpack between the two legs.

[0015] The beneficial effects of the present invention are: 1. The present invention organizes the required equipment and stores it in the form of a backpack, which is convenient for carrying and transporting. The backpack itself can serve as a support. Together with the telescopic bracket, it can directly provide support for the main body of the positioning equipment, so that the equipment can be used at any time and is easy to carry.

[0016] 2. When the device is placed in the storage rack, the slide is pulled out of the frame, and the top cover slides out at the same time. When the outermost end is pulled out, the top cover rotates around the shaft and unfolds. At this time, the device is stably placed in the slide and the slide is pushed into the frame. When sliding inward, the top cover is reset and closed on top of the slide and moves into the frame until it slides into the frame.

[0017] 3. The present invention can link the slider and the slide bar on the fixed seat through the cooperation of the fixed seat and the connecting strip. At this time, the sliding of the slide seat can drive the upper top cover to move synchronously, and the fixed seat is used to engage with the frame to prevent the slide seat from sliding out at will after the equipment is stored.

[0018] 4. The back pad provided in the present invention makes the back more comfortable when the staff carries the backpack. After carrying the backpack, two belts are wrapped around the two sides of the waist and fastened and fixed. In this way, most of the weight of the backpack can be transferred to the hip bones through the belts, so that most of the weight of the backpack is borne by the strongest legs of the human body, which can reduce the stress on the waist and back and make it easier to transfer the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 A stereoscopic diagram of a positioning device for urban planning topographic survey provided by the present invention; Figure 2 A schematic diagram of the internal structure of a backpack of a positioning device for urban planning topographic survey provided by the present invention; Figure 3 A schematic diagram of the back structure of a backpack of a positioning device for urban planning topographic survey provided by the present invention; Figure 4 A schematic diagram of the assembly of a telescopic bracket and an auxiliary bracket of a positioning device for urban planning topographic survey provided by the present invention; Figure 5 A cross-sectional view of a telescopic bracket of a positioning device for urban planning topographic survey provided by the present invention; Figure 6 A schematic diagram of a storage rack of a positioning device for urban planning and topographic survey provided by the present invention in an opened state; Figure 7 A schematic diagram of the internal structure of a storage rack of a positioning device for urban planning topographic survey provided by the present invention; Figure 8A schematic diagram of the internal structure of a positioning device for urban planning topographic survey provided by the present invention; Fig. 9 A positioning device for urban planning topographic survey provided by the present invention Figure 8 A schematic diagram of the structure enlargement in the middle; Fig.10 A schematic diagram of the positions of the engaging blocks and the limiting plates of a positioning device for urban planning topographic survey provided by the present invention; Fig.11 This is a schematic diagram of a state in which a slider and a first slide rail of a positioning device for urban planning topographic survey provided by the present invention are separated.

[0021] Legend: 1. Backpack; 2. Storage rack; 3. Airbag; 4. Telescopic bracket; 411. Fixed axis; 412. Inner axis; 5. Positioning device body; 6. Keel body; 7. Auxiliary bracket; 811. Leg; 812. Roller; 813. Access door; 814. Handrail; 815. Shoulder strap; 911. Frame; 912. Sliding seat; 913. Top cover; 914. Rotating shaft; 915. Buffer layer; 921. First slide rail; 922. Second slide rail; 923. Sliding bar; 924. Sliding block; 925. Gear; 926. Rack; 931. Fixed seat; 932. Connector Connecting strip; 941, engaging groove; 942, engaging block; 943, limiting plate; 944, first spring; 945, limiting groove; 946, L-shaped groove; 947, L-shaped soft strip; 948, pushing block; 9491, second spring; 9492, handle; 101, back pad; 102, waist belt; 111, positioning groove; 112, positioning rod; 113, third spring; 114, mounting seat; 121, engaging groove; 122, engaging block; 123, plug-in shaft; 124, fourth spring; 131, base; 132, telescopic shaft; 133, support foot; 134, support plate. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, as referred to herein, "one embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. The "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] See also Figure 1-Figure 11 The present invention provides a technical solution: a positioning device for urban planning topographic survey, including a backpack 1, a storage rack 2, an airbag 3, a telescopic bracket 4 and a positioning device body 5. A keel frame body 6 is provided at the inner edge of the backpack 1, and the storage rack 2 is assembled and connected with the keel frame body 6. The storage rack 2 is provided with a plurality of and distributed on both sides and below the inner side of the backpack 1. The telescopic bracket 4 includes a fixed shaft 411 and an inner shaft 412. The fixed shaft 411 is fixedly arranged at the center position of the upper end of the backpack 1, and the inner shaft 412 is slidably engaged and arranged inside the fixed shaft 411. The inner shaft 412 is folded and then folded. Located at the center of the backpack 1, an auxiliary bracket 7 is detachably provided on the upper end of the inner shaft 412, and the upper end of the auxiliary bracket 7 is detachably assembled with the positioning device body 5. After folding, the auxiliary bracket 7 is arranged on a storage rack 2 at the lower part of the backpack 1. The bottom of the backpack 1 is foldable and has legs 811. There are multiple air bags 3 evenly distributed on both sides of the backpack 1. A roller 812 is provided at the bottom of the backpack 1. A storage door 813 is rotatably provided on one side of the front of the backpack 1. An armrest 814 is provided on the upper side of the backpack 1 away from the storage door 813, and a shoulder strap 815 is provided on the backpack 1.

[0026] like Figure 1-Figure 11 As shown, the storage rack 2 includes a frame 911, a slide 912 and a top cover 913. The outer wall of the frame 911 is assembled and connected with the keel frame body 6. The frame 911 is set with a front opening. The slide 912 is slidably set at the bottom of the frame 911. The top cover 913 is slidably set at the top of the frame 911 and is set at the top of the inner end and is rotatably connected to the frame 911 through a rotating shaft 914. The top cover 913 slides in conjunction with the slide 912. The slide 912 and the top cover 913 are respectively provided with a buffer layer 9 15. When the device is placed in the storage rack 2, the slide 912 is pulled out from the frame 911, and the top cover 913 slides out at the same time. When the outermost end is pulled out, the top cover 913 rotates around the rotating shaft 914 and unfolds. At this time, the device is stably placed in the slide 912 and the slide 912 is pushed into the frame 911. While sliding inward, the top cover 913 is reset and closed on the top of the slide 912 and moves toward the inside of the frame 911 until it slides into the inside of the frame 911.

[0027] like Figure 1-Figure 11As shown, the first slide rail 921 and the second slide rail 922 are symmetrically arranged above and below the two sides of the frame 911, and the slide bars 923 are symmetrically arranged on the two sides below the slide seat 912. The slide bars 923 are engaged and slidably arranged with the second slide rail 922. The two ends of the rotating shaft 914 are slidably arranged in the first slide rail 921 through the slide bars 924. The end surface of the slide bar 924 is provided with a gear 925. The first slide rail 921 is provided with a rack 926 meshing with the gear 925 above the outlet end. 4 facilitates the sliding of the top cover 913, the sliding of the second slide rail 922 and the slide bar 923 facilitates the sliding of the slide seat 912, and the upper part of the slide seat 912 fits with the lower part of the top cover 913, even if the top cover 913 slides only through one slider 924, the top cover 913 can be smoothly moved. When the top cover 913 moves to the rack 926, the gear 925 meshes with the upper rack 926, and the gear 925 rotates when it continues to move forward, driving the rotating shaft 914 to rotate, and then driving the top cover 913 to rotate and unfold.

[0028] like Figure 1-Figure 11 As shown, the sliding seat 912 is arranged on the outer wall of the inner end and a fixed seat 931 is provided. The side walls of the fixed seat 931 are respectively assembled and connected with the end faces of the slider 924 and the slider 923 through the connecting strip 932. The connecting strip 932 is rotatably connected with the slider 924. The top cover 913 is arranged at the inner end as an opening. The fixed seat 931 is engaged with the inner wall of the frame 911. Through the cooperation of the fixed seat 931 and the connecting strip 932, the slider 924 and the slider 923 can be linked to the fixed seat 931. At this time, the sliding of the sliding seat 912 can drive the upper top cover 913 to move synchronously, and the fixed seat 931 is used to engage with the frame 911 to prevent the sliding seat 912 from sliding out at will after the equipment is stored.

[0029] like Figure 1-Figure 11As shown, the inner wall of the frame 911 is provided with a snap-fitting groove 941, and a snap-fitting block 942 is provided on the fixed seat 931. A limiting plate 943 is rotatably provided on one side of the snap-fitting block 942. The limiting plate 943 is assembled and connected with the snap-fitting block 942 through a first spring 944. A limiting groove 945 is provided on one side of the snap-fitting groove 941 and is configured to be snap-fitted and limited with the limiting plate 943. An L-shaped groove 946 is provided in the side wall of the frame 911 facing the limiting groove 945. The two ends of the L-shaped groove 946 are respectively connected with the limiting groove 945 and the outside. An L-shaped soft strip 947 is slidably provided in the L-shaped groove 946. The L-shaped soft strip 947 is provided with a push block 948 at one end thereof, and the other end extends outward and is provided with a handle 9492 through a second spring 9491. The slide seat 912 is pushed into the frame 9 11, until the locking block 942 is locked with the locking groove 941 to complete the installation, the limit plate 943 in the locked state is locked in the limit groove 945 under the thrust of the first spring 944, and the slide 912 cannot be pulled out at this time, and it is necessary to push the handle 9492 to drive the L-shaped soft strip 947 to push the push block 948 to be squeezed with the limit plate 943 in the limit groove 945, and push the limit plate 943 to be out of the limit groove 945 until the limit plate 943 is reset to the side wall of the locking block 942, and then the slide 912 can be slid out, wherein the L-shaped soft strip 947 is a memory metal, and when the L-shaped soft strip 947 is pushed, the bending part of the L-shaped soft strip 947 is deformed, and after releasing the hand, it cooperates with the second spring 9491 to realize automatic reset.

[0030] like Figure 1-Figure 11 As shown, a back pad 101 is provided on the back of the backpack 1, and waist belts 102 are symmetrically provided on both sides below the back pad 101. The end faces of the two waist belts 102 are buckled together. The back pad 101 is provided to make the waist and back of the staff more comfortable when carrying the backpack 1. After carrying the backpack 1, the two waist belts 102 are wrapped around both sides of the waist and buckled and fixed. In this way, most of the weight of the backpack 1 can be transferred to the hip bone through the waist belts 102, so that most of the weight of the backpack is borne by the strongest legs of the human body, which can reduce the stress on the waist and back and make it easier to transfer the device.

[0031] like Figure 1-Figure 11As shown, a plurality of positioning grooves 111 are provided at intervals up and down on the outer wall of the inner shaft 412, and a positioning rod 112 that is engaged with the positioning groove 111 is slidably penetrated through the side wall of the fixed shaft 411, and the positioning rod 112 is arranged between the outer end and the outer wall of the fixed shaft 411 and is assembled and connected by a third spring 113. A mounting seat 114 is respectively provided below the auxiliary bracket 7 and the positioning device body 5, and the mounting seat 114 is detachably assembled and connected to the upper end of the inner shaft 412. When the height of the inner shaft 412 is adjusted, the positioning rod 112 is pulled outward so that the third spring 113 is compressed, and the positioning rod 112 is arranged at the inner end and separated from the positioning groove 111. At this time, the height of the inner shaft 412 can be adjusted by pulling the inner shaft 412 up and down. After the height is adjusted, the positioning rod 112 is released, and the pulling force of the third spring 113 drives the positioning rod 112 to be inserted into the positioning groove 111 to achieve positioning.

[0032] like Figure 1-Figure 11 As shown, a card slot 121 is provided at the upper end of the inner shaft 412, and a card block 122 is provided below the mounting seat 114 to engage with the card slot 121. An insertion shaft 123 is slidably penetrated through the side wall of the upper end of the inner shaft 412, and one end of the insertion shaft 123 slides through the side wall of the inner shaft 412 and extends into the card block 122. The upper end of the insertion shaft 123 and the card block 122 are arranged at an angle, and a fourth spring 124 is provided between the outer side of the inner shaft 412 and the outer end of the insertion shaft 123. The cooperation makes it easy to install the auxiliary bracket 7 and the upper end of the inner shaft 412, thereby increasing the height to adapt to workers of different heights, and facilitating the assembly of the positioning device body 5. Specifically, when the block 122 slides into the slot 121, the bottom of the block 122 squeezes the inclined surface of the plug-in shaft 123 to make the plug-in shaft 123 slide toward the outside of the inner shaft 412. When the block 122 is completely inserted into the slot 121, the plug-in shaft 123 is inserted into the corresponding groove on one side of the plug-in shaft 123 under the action of the fourth spring 124 to ensure installation stability.

[0033] like Figure 1-Figure 11 As shown, the auxiliary bracket 7 includes a base 131, a telescopic shaft 132 and a support leg 133. The bottom of the base 131 is assembled and connected with the top of the mounting seat 114. The telescopic shaft 132 is arranged above the base 131 and the upper end of the telescopic shaft 132 has the same structure as the upper end of the inner shaft 412. There are multiple support legs 133 and they are rotatably arranged on both sides below the base 131. Abutment plates 134 are arranged on both sides above the backpack 1. The support legs 133 are engaged with the abutment plates 134. When installing the auxiliary bracket 7, the support legs 133 are unfolded and placed on the top of the backpack 1, and the block 122 at the bottom of the mounting seat 114 below the base 131 is engaged with the upper end of the inner shaft 412. During the engagement process, the support legs 133 continuously slide toward the abutment plates 134 until they are tightly engaged with the abutment plates 134 to ensure the stability of the auxiliary bracket 7.

[0034] like Figure 1-Figure 11As shown, two legs 811 are provided and the upper parts are rotatably arranged on both sides of the lower part of the backpack 1 , and a plurality of rollers 812 are provided and arranged at the bottom of the backpack 1 between the two legs 811 .

[0035] Working principle: When the device is used, the two legs 811 under the backpack 1 are rotated and unfolded, and the backpack 1 is placed stably on the ground, and the access door 813 is opened, and the required tools and equipment are taken out from the storage rack 2. The storage racks 2 on both sides of the backpack 1 are usually used to place the positioning device body 5, batteries and other necessary equipment. Before installing the positioning device body 5, the upper end of the inner shaft 412 is pulled out from above the fixed shaft 411 and fixed. If the height of the inner shaft 412 after being pulled out is just suitable for the inspection personnel, the positioning device body 5 can be directly assembled on the upper end of the inner shaft 412. If the height of the inner shaft 412 after being completely pulled out is low, the auxiliary bracket 7 can be taken out and assembled on the upper end of the inner shaft 412, and the positioning device body 5 can be assembled on the upper end of the auxiliary bracket 7. At this time, the auxiliary bracket 7, the telescopic bracket 4, and the backpack 1 The whole of the positioning device body 5 and the support legs 811 supports the positioning device body 5, and the heavier backpack 1 is located at the bottom, so that the chassis of the entire supporting structure is more stable to prevent it from tipping over during use. After the detection is completed, the positioning device body 5 and the auxiliary bracket 7 can be disassembled and placed in a suitable position on the storage rack 2, the inner shaft 412 is retracted to the center position inside the backpack 1, the access door 813 is closed, and the support legs 811 are folded. When it is transferred, it can be pulled like a suitcase to move it. If it is necessary to climb a ladder to transfer, the staff can carry the backpack 1 on their back through the shoulder straps 815 to move it. The air bags 3 arranged on both sides of the backpack 1 can be filled with helium or air. Filling with helium reduces the weight of the backpack 1 to a certain extent. Although the air does not have the good buoyancy of helium, it has a good shock-absorbing and buffering effect.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A positioning device for urban planning topographic survey, characterized in that: The backpack (1) comprises a storage rack (2), an air bag (3), a telescopic bracket (4) and a positioning device body (5). A keel frame body (6) is provided at the inner edge of the backpack (1). The storage rack (2) is assembled and connected to the keel frame body (6). The storage rack (2) is provided with a plurality of keel frames (6) and is distributed on both sides and below the inside of the backpack (1). The telescopic bracket (4) comprises a fixed shaft (411) and an inner shaft (412). The fixed shaft (411) is fixedly arranged at the center position of the upper end of the backpack (1). The inner shaft (412) is slidably engaged and arranged inside the fixed shaft (411). After folding, the inner shaft (412) is located at the center position inside the backpack (1). The upper end of the inner shaft (412) is detachably provided with an auxiliary bracket (7), the upper end of the auxiliary bracket (7) is detachably assembled with the positioning device body (5), and after being folded, the auxiliary bracket (7) is arranged on a storage rack (2) at the lower part of the backpack (1), the bottom of the backpack (1) is foldably provided with supporting legs (811), a plurality of air bags (3) are provided and evenly distributed on both sides of the backpack (1), a roller (812) is provided at the lower part of the backpack (1), a storage and access door (813) is rotatably provided on one side of the front of the backpack (1), a handrail (814) is provided on the upper side of the backpack (1) away from the storage and access door (813), and a shoulder strap (815) is provided on the backpack (1).

2. A positioning device for urban planning topographic survey according to claim 1, characterized in that: The storage rack (2) comprises a frame (911), a slide seat (912) and a top cover (913); the outer wall of the frame (911) is assembled and connected to the keel frame body (6); the frame (911) is arranged with a front opening; the slide seat (912) is slidably arranged at the lower part of the frame (911); the top cover (913) is slidably arranged at the upper part of the frame (911) and is arranged at the upper part of one inner end and is rotatably connected to the frame (911) via a rotating shaft (914); the top cover (913) slides in conjunction with the slide seat (912); and a buffer layer (915) is respectively arranged inside the slide seat (912) and the top cover (913).

3. A positioning device for urban planning topographic survey according to claim 2, characterized in that: A first slide rail (921) and a second slide rail (922) are symmetrically arranged above and below both sides of the frame (911), and slide bars (923) are symmetrically arranged below the slide seat (912). The slide bars (923) are slidably engaged with the second slide rail (922). Both ends of the rotating shaft (914) are slidably arranged in the first slide rail (921) through sliders (924). A gear (925) is arranged on the end surface of the slider (924), and a rack (926) meshing with the gear (925) is arranged above the first slide rail (921) near the outlet end.

4. A positioning device for urban planning topographic survey according to claim 3, characterized in that: The sliding seat (912) is arranged at one inner end and has a fixed seat (931) on its outer wall. The side walls of the fixed seat (931) are respectively assembled and connected with the end faces of the sliding block (924) and the sliding block (923) through connecting strips (932). The connecting strip (932) is rotatably connected with the sliding block (924). The top cover (913) is arranged at one inner end and is open. The fixed seat (931) is engaged with the inner wall of the frame (911).

5. A positioning device for urban planning topographic survey according to claim 4, characterized in that: The inner wall of the frame (911) is provided with a snap-fitting groove (941), the fixing seat (931) is provided with a snap-fitting block (942), one side of the snap-fitting block (942) is rotatably provided with a limiting plate (943), the limiting plate (943) is assembled and connected with the snap-fitting block (942) via a first spring (944), one side of the snap-fitting groove (941) is provided with a limiting groove (945) which is snap-fitted and limited with the limiting plate (943), an L-shaped groove (946) is provided in the side wall of the frame (911) facing the limiting groove (945), the two ends of the L-shaped groove (946) are respectively connected with the limiting groove (945) and the outside, an L-shaped soft strip (947) is slidably provided in the L-shaped groove (946), one end of the L-shaped soft strip (947) is provided with a push block (948) arranged inside, and the other end extends outside and is provided with a handle (9492) via a second spring (9491).

6. A positioning device for urban planning topographic survey according to claim 1, characterized in that: A back pad (101) is provided on the back of the backpack (1), and waist belts (102) are symmetrically provided on both sides below the back pad (101), and the end faces of the two waist belts (102) are buckled together.

7. A positioning device for urban planning topographic survey according to claim 1, characterized in that: The outer wall of the inner shaft (412) is provided with a plurality of positioning grooves (111) at intervals above and below, and a positioning rod (112) is slidably penetrated through the side wall of the fixed shaft (411) and is engaged with the positioning groove (111). The positioning rod (112) is arranged between an outer end and the outer wall of the fixed shaft (411) and is assembled and connected via a third spring (113). Mounting seats (114) are respectively provided below the auxiliary bracket (7) and the positioning device body (5), and the mounting seat (114) is detachably assembled and connected to the upper end of the inner shaft (412).

8. A positioning device for urban planning topographic survey according to claim 7, characterized in that: A slot (121) is provided at the upper end of the inner shaft (412), a block (122) is provided below the mounting seat (114) and is engaged with the slot (121), an insertion shaft (123) is slidably penetrated through the side wall of the upper end of the inner shaft (412), one end of the insertion shaft (123) slides through the side wall of the inner shaft (412) and extends into the block (122), the upper end of the insertion shaft (123) and the block (122) are inclined, and a fourth spring (124) is provided between the outer side of the inner shaft (412) and the outer end of the insertion shaft (123).

9. A positioning device for urban planning topographic survey according to claim 8, characterized in that: The auxiliary bracket (7) comprises a base (131), a telescopic shaft (132) and a support leg (133); the base (131) is assembled and connected at the bottom with the mounting seat (114) at the top; the telescopic shaft (132) is arranged at the top of the base (131); the upper end of the telescopic shaft (132) has the same structure as the upper end of the inner shaft (412); a plurality of support legs (133) are rotatably arranged at both sides below the base (131); abutment plates (134) are arranged at both sides above the backpack (1); and the support legs (133) are arranged to engage with the abutment plates (134).

10. A positioning device for urban planning topographic survey according to claim 1, characterized in that: The supporting legs (811) are provided with two and are rotatably arranged at the upper sides of the lower side of the backpack (1), and the rollers (812) are provided with a plurality and are arranged at the bottom of the backpack (1) between the two supporting legs (811).

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