Connecting device for GPS receiver and prism bar

Abstract

The utility model relates to the technical field of engineering measuring devices, and provides a connecting device for a GPS (Global Positioning System) receiver and a prism bar, and a spring provides clamping force for the upper ends of two clamping arms, so that a GPS receiver connector is stably clamped through the upper ends of the two clamping arms. A user presses the two horizontal rods in the direction close to the center of the mounting barrel, under the pushing action of the two horizontal rods, the distance between the lower ends of the two clamping arms is reduced, the spring is shortened, the upper ends of the two clamping arms are opened, and the GPS receiver connector is taken out. The stability is high, and the disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering surveying devices, in particular to a connecting device for a GPS receiver and a prism pole. Background Art

[0002] Real-time dynamic positioning systems (RTKPs) are commonly used in engineering surveying technologies such as construction stakeout, topographic mapping, and photogrammetry control point placement. These systems achieve centimeter-level positioning accuracy in real time in the field. RTKP systems include a GPS receiver, data communication device, and processor. In practice, the GPS receiver is typically mounted on top of a vertically mounted prism pole via an adapter. As is currently the case, the prism pole is adjustable in height, typically with a maximum height of 5.1 meters.

[0003] The existing adapter includes a GPS receiver connector and a prism pole connector that are used together. The GPS receiver connector includes a threaded section and a plug-in section arranged above and below, and the threaded section is used to connect the GPS receiver. The prism pole connector includes a mounting barrel, a stud and a locking bolt; the vertically arranged stud is located below the mounting barrel with the opening facing upward, and the upper end of the stud is welded to the bottom of the mounting barrel. The plug-in section of the GPS receiver connector is inserted into the mounting barrel, and a threaded hole that matches the locking bolt is opened on the side wall of the mounting barrel. The locking bolt is installed through the threaded hole, and the end of the locking bolt that extends into the mounting barrel abuts against the plug-in section. The problem of thread slippage is prone to occur if the locking bolt is tightened more times, resulting in unstable installation of the GPS receiver connector and the prism pole connector. It also has the disadvantage of being inconvenient to disassemble and assemble. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a connecting device for a GPS receiver and a prism pole, which has strong stability and is convenient for assembly and disassembly.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a connecting device for a GPS receiver and a prism pole, comprising a GPS receiver connector and a prism pole connector for use together; a first vertically arranged stud for connecting to the GPS receiver is provided on the top of the GPS receiver connector;

[0006] The prism rod connecting head includes a mounting barrel, a fixing block, a clamping arm, a spring and a horizontal rod; a second vertically arranged stud for connecting the prism rod is provided below the bottom of the mounting barrel with the opening facing upward; the fixing block is provided on the bottom wall of the mounting barrel and is located in the mounting barrel, and there is a mounting spacing between the side wall of the fixing block and the inner side wall of the mounting barrel; the clamping arms are provided in pairs, and the two clamping arms are respectively located on both sides of the axial direction of the fixing block; the lower end of one of the clamping arms is connected to the fixing block through a first rotating seat, and the lower end of the other clamping arm is connected to the fixing block through a second rotating seat; the rotation center of the first rotating seat and the rotation center of the second rotating seat The two clamping arms are arranged horizontally and in parallel; the lower ends of the two clamping arms are located in the installation spacing, and the upper ends of the two clamping arms are located above the fixed block; the spring is arranged between the lower ends of the two clamping arms and is located below the rotation center of the first rotating seat and the rotation center of the second rotating seat, and the lower ends of the two clamping arms are driven away from each other by the spring; the horizontal rod is installed through the through hole on the side wall of the installation barrel; one end of one of the horizontal rods is in contact with the lower end of one of the clamping arms, and the other end is located outside the installation barrel; one end of the other horizontal rod is in contact with the lower end of the other clamping arm, and the other end is located outside the installation barrel;

[0007] When the GPS receiver connector is connected to the prism rod connector, the GPS receiver connector is clamped by the upper ends of the two clamping arms.

[0008] Furthermore, notches are provided on both axial sides of the fixing block;

[0009] The first rotating seat includes a first horizontal rotating shaft connected to the fixed block, wherein the lower end of one of the clamping arms is connected to the fixed block via the first horizontal rotating shaft located in one of the notches;

[0010] The second rotating seat includes a second horizontal rotating shaft connected to the fixed block, and the lower end of the other clamping arm is connected to the fixed block via the second horizontal rotating shaft located in the other notch;

[0011] The first horizontal rotation axis and the second horizontal rotation axis are both arranged horizontally and parallel to each other;

[0012] The fixing block is provided with a horizontal channel communicating with the two notches. The spring is provided in the horizontal channel and is located below the first horizontal rotating shaft and the second horizontal rotating shaft.

[0013] Furthermore, a limiting portion is provided on the outer circumferential surface of the horizontal rod, and the limiting portion is located between the two ends of the horizontal rod and in the installation distance.

[0014] Furthermore, the limiting portion is an annular plate arranged coaxially with the horizontal rod.

[0015] Furthermore, a slot is provided on the outer side wall of the GPS receiver connector, which is recessed toward the center thereof. Two slots are provided, and the two slots are located on both sides of the axial direction of the GPS receiver connector.

[0016] A protrusion is provided on the side wall of the upper end of the clamping arm, and the bottom of the protrusion is higher than the upper surface of the fixing block; the protrusions on the two clamping arms are arranged opposite to each other;

[0017] The protrusion on one of the clamping arms is engaged with one of the slots, and the protrusion on the other clamping arm is engaged with the other slot.

[0018] Furthermore, it also includes an elastic gasket arranged on the upper surface of the fixing block, and the upper surface of the elastic gasket is lower than the bottom of the protrusion.

[0019] Furthermore, the elastic gasket is a rubber product.

[0020] Furthermore, the upper ends of the two clamping arms are both located outside the upper end opening of the mounting barrel.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a connecting device for a GPS receiver and a prism pole, which has strong stability and is easy to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the GPS receiver connector of the present invention after being clamped by two clamping arms of the prism rod connector;

[0023] Figure 2 This is a schematic diagram of the structure in which the GPS receiver connector is disengaged from between the two clamping arms of the prism rod connector in the present invention;

[0024] Reference numerals:

[0025] 1-GPS receiver connector; 101-card slot; 102-first stud;

[0026] 2-prism rod connector; 201-mounting barrel; 202-second stud; 203-fixing block; 2031-notch; 204-clamping arm; 2041-protrusion; 205-spring; 206-horizontal rod; 2061-limiting part; 207-first horizontal rotating shaft; 208-second horizontal rotating shaft; 209-elastic gasket; 210-installation spacing. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] The invention discloses a connecting device for a GPS receiver and a prism pole, comprising a GPS receiver connector 1 and a prism pole connector 2 used in conjunction with each other.

[0029] The top of the GPS receiver connector 1 is provided with a vertically arranged first stud 102 for connecting to a GPS receiver.

[0030] The prism rod connector 2 includes a mounting barrel 201, a fixing block 203, a clamping arm 204, a spring 205 and a horizontal rod 206; a second vertically arranged stud 202 for connecting the prism rod is provided below the bottom of the mounting barrel 201 with an opening facing upward; the fixing block 203 is provided on the bottom wall of the mounting barrel 201 and is located in the mounting barrel 201, and there is a mounting spacing 210 between the side wall of the fixing block 203 and the inner side wall of the mounting barrel 201; the clamping arms 204 are provided in pairs, and the two clamping arms 204 are respectively located on both sides of the axial direction of the fixing block 203; the lower end of one of the clamping arms 204 is connected to the fixing block 203 through a first rotating seat, and the lower end of the other clamping arm 204 is connected to the fixing block 203 through a second rotating seat; the rotation center of the first rotating seat and the second rotating seat The rotation centers of the movable seats are arranged horizontally and parallel; the lower ends of the two clamping arms 204 are located in the installation spacing 210, and the upper ends of the two clamping arms 204 are located above the fixed block 203; the spring 205 is arranged between the lower ends of the two clamping arms 204, and is located below the rotation center of the first rotating seat and the rotation center of the second rotating seat, and the lower ends of the two clamping arms 204 are driven away from each other by the spring 205; the horizontal rod 206 is installed through the through hole on the side wall of the mounting barrel 201; one end of one of the horizontal rods 206 is abutted against the lower end of one of the clamping arms 204, and the other end is located outside the mounting barrel 201; one end of the other horizontal rod 206 is abutted against the lower end of the other clamping arm 204, and the other end is located outside the mounting barrel 201.

[0031] When the GPS receiver connector 1 is connected to the prism rod connector 2 , the GPS receiver connector 1 is clamped by the upper ends of the two clamping arms 204 .

[0032] The GPS receiver connector 1 is connected to the GPS receiver via a vertically arranged first stud 102. The bottom of the GPS receiver is provided with a threaded hole that screws into the first stud 102. The prism rod connector 2 is connected to the prism rod via a vertically arranged second stud 202. The top of the prism rod is provided with a threaded hole that screws into the second stud 202. Both the first stud 102 and the second stud 202 can be made of cemented carbide, steel, or the like. The GPS receiver connector 1 can be made of cemented carbide, steel, or the like, preferably carbon fiber. Preferably, the GPS receiver connector 1 is adhesively connected to the first stud 102. The GPS receiver connector 1 and the first stud 102 are coaxially arranged. The mounting barrel 201, the fixing block 203, and the second stud 202 can all be made of cemented carbide, steel, or the like. The bottom of the fixing block 203 is welded to the bottom wall of the mounting barrel 201. The upper end of the second stud 202 is welded to the bottom of the mounting barrel 201. Preferably, the mounting barrel 201 , the fixing block 203 and the second stud 202 are coaxially arranged.

[0033] The mounting barrel 201 provides mounting support for the fixing block 203 and horizontal rod 206, which can slide relative to the sidewalls of the mounting barrel 201. The fixing block 203 provides mounting support for the clamping arms 204. Springs 205 provide clamping force at the upper ends of the two clamping arms 204, ensuring that the GPS receiver connector 1 is stably clamped by the upper ends of the two clamping arms 204. When the user presses the two horizontal rods 206 toward the center of the mounting barrel 201, the distance between the lower ends of the two clamping arms 204 decreases, shortening the springs 205 and allowing the upper ends of the two clamping arms 204 to open, allowing the GPS receiver connector 1 to be removed. This arrangement offers advantages such as strong stability and easy assembly and disassembly. Preferably, when the GPS receiver connector 1 is clamped by the upper ends of the two clamping arms 204, the first stud 102, the GPS receiver connector 1, the mounting barrel 201, the fixing block 203, and the second stud 202 are coaxially arranged.

[0034] The first rotating seat and the second rotating seat have various embodiments, and the spring 205 can be arranged above the fixed block 203. Preferably, notches 2031 are provided on both axial sides of the fixed block 203; the first rotating seat includes a first horizontal rotating shaft 207 connected to the fixed block 203, and the lower end of one of the clamping arms 204 is connected to the fixed block 203 via the first horizontal rotating shaft 207 located in one of the notches 2031; the second rotating seat includes a second horizontal rotating shaft 208 connected to the fixed block 203, and the lower end of the other clamping arm 204 is connected to the fixed block 203 via the second horizontal rotating shaft 208 located in the other of the notches 2031; the first horizontal rotating shaft 207 and the second horizontal rotating shaft 208 are both arranged horizontally and parallel to each other; a horizontal channel connecting the two notches 2031 is provided in the fixed block 203, and the spring 205 is arranged in the horizontal channel and is located below the first horizontal rotating shaft 207 and the second horizontal rotating shaft 208. The spring 205 is arranged in the horizontal channel to ensure stable installation of the spring 205.

[0035] In order to limit the horizontal rod 206, preferably, a limiting portion 2061 is provided on the outer circumference of the horizontal rod 206, and the limiting portion 2061 is located between the two ends of the horizontal rod 206 and in the installation spacing 210. By providing the limiting portion 2061, the horizontal rod 206 is prevented from being separated from the installation barrel 201.

[0036] The limiting portion 2061 may be a block structure. Preferably, the limiting portion 2061 is an annular plate coaxially arranged with the horizontal rod 206. Both the horizontal rod 206 and the limiting portion 2061 may be made of hard alloy, steel, etc. The limiting portion 2061 is welded to the horizontal rod 206.

[0037] Preferably, the outer wall of the GPS receiver connector 1 is provided with a slot 101 recessed toward its center. Two slots 101 are provided, one located on either side of the axial direction of the GPS receiver connector 1. A protrusion 2041 is provided on the upper sidewall of the clamping arm 204, with the bottom of the protrusion 2041 higher than the upper surface of the fixing block 203. The protrusions 2041 on the two clamping arms 204 are arranged opposite each other. The protrusion 2041 on one clamping arm 204 engages with one of the slots 101, and the protrusion 2041 on the other clamping arm 204 engages with the other slot 101. The provision of the engaging slots 101 and protrusions 2041 further ensures that the two clamping arms 204 stably clamp the GPS receiver connector 1. Both the clamping arm 204 and the protrusion 2041 can be made of cemented carbide, steel, or the like.

[0038] The protrusion 2041 can be welded and fixed on the clamping arm 204. Preferably, the protrusion 2041 and the clamping arm 204 are an integrally formed structure.

[0039] To prevent vertical relative displacement between the GPS receiver connector 1 and the clamping arm 204, an elastic gasket 209 is preferably provided on the upper surface of the fixing block 203, with the upper surface of the elastic gasket 209 being lower than the bottom of the protrusion 2041. The elastic gasket 209 allows the bottom of the protrusion 2041 to abut against the bottom wall of the slot 101, thereby preventing vertical relative displacement between the GPS receiver connector 1 and the clamping arm 204.

[0040] The elastic gasket 209 and the fixing block 203 may be connected by screws. Preferably, the elastic gasket 209 is bonded and fixed to the upper surface of the fixing block 203 .

[0041] The elastic gasket 209 may be a silicone product. Preferably, the elastic gasket 209 is a rubber product.

[0042] The upper ends of the two clamping arms 204 can be flush with the upper opening of the installation barrel 201. As a further preferred embodiment, the upper ends of the two clamping arms 204 are located outside the upper opening of the installation barrel 201.

[0043] The embodiments of the specific implementation are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for connecting a GPS receiver to a prism pole, comprising a GPS receiver connector (1) and a prism pole connector (2) for use together; characterized in that: The top of the GPS receiver connector (1) is provided with a vertically arranged first stud (102) for connecting to a GPS receiver; The prism rod connector (2) comprises a mounting barrel (201), a fixing block (203), a clamping arm (204), a spring (205) and a horizontal rod (206); a second vertically arranged stud (202) for connecting the prism rod is provided below the bottom of the mounting barrel (201) with an opening facing upward; the fixing block (203) is provided on the bottom wall of the mounting barrel (201) and is located in the mounting barrel (201), and a mounting spacing (210) is provided between the side wall of the fixing block (203) and the inner side wall of the mounting barrel (201); two clamping arms (204) are provided in pairs, and the two clamping arms (204) are respectively located on both sides of the axial direction of the fixing block (203); the lower end of one of the clamping arms (204) is connected to the fixing block (203) through a first rotating seat, and the lower end of the other clamping arm (204) is connected to the fixing block (203) through a second rotating seat; the first rotating seat rotates in the middle of the mounting barrel The rotation center of the first rotating seat and the rotation center of the second rotating seat are both arranged horizontally and parallel; the lower ends of the two clamping arms (204) are both located in the installation spacing (210), and the upper ends of the two clamping arms (204) are both located above the fixed block (203); the spring (205) is arranged between the lower ends of the two clamping arms (204) and is located below the rotation center of the first rotating seat and the rotation center of the second rotating seat, and the lower ends of the two clamping arms (204) are driven away from each other by the spring (205); the horizontal rod (206) is installed through the through hole on the side wall of the installation barrel (201); one end of one of the horizontal rods (206) is against the lower end of one of the clamping arms (204), and the other end is located outside the installation barrel (201); one end of the other horizontal rod (206) is against the lower end of the other clamping arm (204), and the other end is located outside the installation barrel (201); When the GPS receiver connector (1) and the prism rod connector (2) are connected, the GPS receiver connector (1) is clamped by the upper ends of the two clamping arms (204).

2. The connecting device for a GPS receiver and a prism pole according to claim 1, wherein: Notches (2031) are provided on both axial sides of the fixing block (203); The first rotating seat comprises a first horizontal rotating shaft (207) connected to the fixed block (203), wherein the lower end of one of the clamping arms (204) is connected to the fixed block (203) via the first horizontal rotating shaft (207) located in one of the notches (2031); The second rotating seat includes a second horizontal rotating shaft (208) connected to the fixed block (203), and the lower end of the other clamping arm (204) is connected to the fixed block (203) via the second horizontal rotating shaft (208) located in the other notch (2031); The first horizontal rotation axis (207) and the second horizontal rotation axis (208) are both arranged horizontally and in parallel; The fixed block (203) is provided with a horizontal channel communicating with the two notches (2031), and the spring (205) is provided in the horizontal channel and is located below the first horizontal rotating shaft (207) and the second horizontal rotating shaft (208).

3. The connecting device for a GPS receiver and a prism pole according to claim 1, wherein: A limiting portion (2061) is provided on the outer peripheral surface of the horizontal rod (206), and the limiting portion (2061) is located between the two ends of the horizontal rod (206) and within the installation spacing (210).

4. The connecting device for a GPS receiver and a prism pole according to claim 3, wherein: The limiting portion (2061) is an annular plate coaxially arranged with the horizontal rod (206).

5. The connecting device for a GPS receiver and a prism pole according to claim 1, wherein: The outer side wall of the GPS receiver connector (1) is provided with a card slot (101) that is recessed toward the center thereof, and two card slots (101) are provided, and the two card slots (101) are respectively located on both sides of the axial direction of the GPS receiver connector (1); A protrusion (2041) is provided on the upper side wall of the clamping arm (204), and the bottom of the protrusion (2041) is higher than the upper surface of the fixing block (203); the protrusions (2041) on the two clamping arms (204) are arranged opposite to each other; The protrusion (2041) on one of the clamping arms (204) is engaged with one of the clamping slots (101), and the protrusion (2041) on the other clamping arm (204) is engaged with the other clamping slot (101).

6. The connecting device for a GPS receiver and a prism pole according to claim 5, characterized in that: It also includes an elastic gasket (209) arranged on the upper surface of the fixing block (203), and the upper surface of the elastic gasket (209) is lower than the bottom of the protrusion (2041).

7. The connecting device for a GPS receiver and a prism pole according to claim 6, characterized in that: The elastic gasket (209) is a rubber product.

8. The connecting device for a GPS receiver and a prism pole according to claim 1, wherein: The upper ends of the two clamping arms (204) are both located outside the upper end opening of the installation barrel (201).

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