Monitoring protection device capable of centering and leveling

Abstract

The utility model provides a monitoring protection device capable of centering and leveling, which belongs to the technical field of monitoring prisms, and comprises a forced centering disc and a universal joint which are fixedly arranged on an observation pillar, a fixed chassis and a prism fixing rod are arranged above the forced centering disc, and the fixed chassis is sleeved on the outer surface of the prism fixing rod; the bottom of the prism fixing rod is connected with a fixing bolt through a universal joint, and the fixing bolt is in threaded fit with a forced centering disc. A protective cover is inserted between the forced centering disc and the fixed chassis in a sliding manner; a plurality of grooves are formed in the outer cambered surface of the protective cover; a clamping plate is arranged in each groove in a sliding mode, and an elastic piece is arranged between each clamping plate and the corresponding groove. An arc-shaped matching part is fixedly arranged on the clamping plate, a plurality of limiting grooves are formed in the forced centering disc, and the arc-shaped matching part is in transmission clamping fit with the limiting grooves. In the process that the protective cover is inserted into the forced centering disc, the arc-shaped matching part in the protective cover is clamped and matched with the limiting groove in the forced centering disc, and the observation opening is prevented from shifting.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of monitoring prism, specifically relates to a monitoring protection device that can be centered and leveled. BACKGROUND

[0002] The monitoring prism is a specially designed optical reflector, which is used in cooperation with electronic measuring instruments such as total station and GPS equipment, to calculate distance and angle by reflecting infrared rays. If the prism is erected in the wild for a long time without protection measures, it is easy to be disturbed by external factors. The common protection method in the current market is to install a simple protection device or a protective cover, which has various styles and functions. However, some protection devices only have a certain protection function and do not have a centering and leveling function. Therefore, there is an urgent need for a monitoring protection device that can be centered and leveled.

[0003] The patent with the publication number CN219225186U discloses a protection device for long-term monitoring prism, which is provided with a fixing bolt, a middle base, a leveling bolt, a protective cover, a buckle, a clamping groove and a groove. During use, the centering base is fixed on the observation pier by the fixing bolt, and then the length of the middle base extending out of the leveling bolt is adjusted, i.e. the middle base is raised or lowered along the leveling bolt to realize the leveling of the centering base. Finally, the prism protective cover is installed, so that the buckle is located in the clamping groove, and then the protective cover is rotated, so that the buckle rotates along the groove, and the observation window is adjusted to the appropriate observation position.

[0004] However, the protective cover in the above-mentioned scheme is easy to be affected by the external environment after installation, so that the buckle rotates in the groove, the protective cover rotates relative to the middle base, and the observation window is offset, thereby shielding the prism and affecting the subsequent normal monitoring of the prism, which has certain limitations. UTILITY MODEL CONTENTS

[0005] To solve the problems in the background art, the utility model provides a monitoring protection device that can be centered and leveled.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the technical scheme as follows:

[0007] The application relates to a monitoring and protecting device capable of centering and leveling, which comprises a forced centering disc and a universal joint fixedly installed on an observation pier, a fixed bottom disc is arranged above the forced centering disc, a prism fixing rod is arranged above the fixed bottom disc, the fixed bottom disc is sleeved on the outer surface of the prism fixing rod, the bottom of the prism fixing rod is connected with a fixed bolt through the universal joint, the fixed bolt is in threaded connection with the forced centering disc, a protective cover is slidably inserted between the forced centering disc and the fixed bottom disc, a plurality of grooves are formed in the outer arc surface of the protective cover and are arranged in a circumferential array around the central axis of the protective cover, a clamping plate is slidably arranged in each groove in the radial direction of the protective cover, and an elastic element is arranged between the clamping plate and the groove; an arc-shaped matching part is fixedly arranged on the clamping plate, a plurality of limiting grooves are formed in the forced centering disc and are arranged in a circumferential array around the central axis of the forced centering disc, and the arc-shaped matching part is in transmission clamping connection with the limiting grooves.

[0008] Further, a supporting frame is fixedly arranged on the top of the prism fixing rod, and a prism is installed on the supporting frame.

[0009] Further, two level indicators are fixedly installed on the fixed bottom disc.

[0010] Further, a leveling mechanism is arranged on the fixed bottom disc, the leveling mechanism comprises leveling bolts, three positioning holes are formed in the fixed bottom disc and are arranged in a circumferential array around the center of the fixed bottom disc, the included angle between the positioning holes is 120 DEG, the leveling bolts are in threaded connection with the positioning holes, three strip-shaped grooves are formed in the forced centering disc and are arranged in a 120 DEG-angled symmetrical distribution, and the three 120 DEG-angled symmetrical distribution leveling bolts are just matched with the three 120 DEG-angled symmetrical distribution strip-shaped grooves.

[0011] Further, the elastic element comprises a telescopic rod, the telescopic rod is fixedly arranged between the clamping plate and the groove, one end of the telescopic rod is fixedly connected with the clamping plate, and the other end of the telescopic rod is fixedly connected with the groove; a spring is sleeved on the outer surface of the telescopic rod, and the telescopic direction of the spring is the same as that of the telescopic rod.

[0012] Further, an observation opening is formed in the protective cover, a plurality of wave-shaped protruding strips are arranged above the observation opening, and flow guide grooves are formed in the protruding strips.

[0013] The application has the following beneficial effects:

[0014] 1. During the process that the protective cover is inserted into the forced centering disc, the arc-shaped matching part in the protective cover is in limiting clamping connection with the limiting grooves in the forced centering disc, sliding of the protective cover under the influence of the external environment is avoided, deviation of the adjusted observation opening is avoided, normal monitoring of the prism is ensured, and the application has better practical effects.

[0015] 2. By setting multiple convex strips above the observation port, not only is it convenient for the operator to take, but also the water flowing down from the top of the protective cover can be guided by the guide grooves above the convex strips, thereby avoiding water flowing into the device through the observation port. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are shown by way of example, and like or corresponding elements are indicated by like or corresponding reference numerals, in which:

[0017] Figure 1 is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 is a partial sectional view of the present application;

[0019] Figure 3 is a schematic diagram of the top structure of the fixed base plate of the present application;

[0020] Figure 4 is a schematic diagram of the limiting groove structure of the present application;

[0021] Figure 5 is a schematic diagram of the guide groove structure of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 1, forced centering disc; 2, clamping plate; 21, arc-shaped matching part; 3, protective cover; 4, observation port; 5, prism; 6, groove; 7, leveling bolt; 8, level; 9, fixed base plate; 10, prism fixing rod; 101, fixing bolt; 11, telescopic rod; 12, spring; 13, positioning hole; 14, support frame; 15, notch; 16, limiting groove; 17, convex strip; 18, guide groove; 19, universal joint. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and those skilled in the art should know that the embodiments described below are only part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] As Figures 1-5The technical scheme that the utility model adopts is as follows: A monitoring protection device capable of centering and leveling, comprising a forced centering disc 1 and a universal joint 19 fixedly installed on an observation pier, and a prism fixing rod 10 arranged above the forced centering disc 1, wherein the forced centering disc 1, the prism fixing rod 10 and the fixed base plate 9 are coaxial.

[0026] The bottom of the prism fixing rod 10 is connected with a fixing bolt 101 through the universal joint 19, the fixing bolt 101 and the forced centering disc 1 form a screw rod pair, and a limiting ring is integrally arranged on the outer surface of the prism fixing rod 10. The fixed base plate 9 is sleeved on the outer surface of the prism fixing rod 10 and located below the limiting ring, and can slide on the outer surface of the prism fixing rod 10 and rotate on the outer surface of the prism fixing rod 10.

[0027] The top of the prism fixing rod 10 is fixedly provided with a support frame 14, and the prism 5 is installed on the support frame 14.

[0028] The two levelers 8 are horizontally arranged and vertically arranged on the top surface of the fixed base plate 9, and the leveling mechanism is used for leveling the fixed base plate 9.

[0029] The leveling mechanism comprises leveling bolts 7, and three positioning holes 13 are formed in the fixed base plate 9 and are distributed in a circumferential array along the center of the fixed base plate 9, and the included angle between the positioning holes 13 is 120°. Each positioning hole 13 is threadedly connected with a leveling bolt 7, and the bottom of the leveling bolt 7 is provided with a pointed end. Three grooves 15 are formed in the forced centering disc 1 and are symmetrically distributed at an included angle of 120°, and the three leveling bolts 7 symmetrically distributed at an included angle of 120° are just matched with the three grooves 15 symmetrically distributed at an included angle of 120°.

[0030] The specific leveling steps are as follows: first, place the fixed base plate 9 on the forced centering disc 1, control the coaxiality of the two, make the bottom of the fixed bolt 101 pass through the fixed base plate 9 and extend into the forced centering disc 1, and then tighten the fixed bolt 101 by about 1 / 2.

[0031] Observe the levelers 8 on the top surface of the fixed base plate 9, adjust the height of the three leveling bolts 7 with an external wrench, until the bubbles in the two horizontal and vertical levelers 8 are centered, and the preliminary leveling of the fixed base plate 9 is realized.

[0032] Subsequently, the prism fixing rod 10 is slowly rotated, the prism fixing rod 10 drives the fixing bolt 101 to slowly rotate through the universal joint 19, so that the fixing bolt 101 is fastened, and the indication of the two levels 8 is observed while fastening, and appropriate adjustment is performed when adjustment is required, until the fixing bolt 101 is completely fastened and the two levels 8 are just centered, so that the final leveling and fastening are completed. During the entire leveling and fastening process, the operator appropriately presses the center of the fixed base plate 9 with one hand, and slowly performs the leveling or fastening operation with the other hand.

[0033] The protective cover 3 is slidably inserted between the forced centering disc 1 and the fixed base plate 9, and a certain gap is left between the inner arc surface of the protective cover 3 and the outer arc surface of the fixed base plate 9. The outer arc surface of the protective cover 3 is provided with a plurality of grooves 6, and the plurality of grooves 6 are distributed in a circumferential array along the central axis of the protective cover 3. A clamping plate 2 is slidably arranged in each groove 6 along the radial direction of the protective cover 3, and the clamping plate 2 is provided with an arc-shaped matching part 21. An elastic member is arranged between the clamping plate 2 and the protective cover 3.

[0034] The elastic member includes a telescopic rod 11, which is fixedly arranged between the clamping plate 2 and the groove 6. One end of the telescopic rod 11 is fixedly connected with the clamping plate 2, and the other end is fixedly connected with the groove 6. A spring 12 is sleeved on the outer surface of the telescopic rod 11, and the spring 12 has the same telescopic direction as the telescopic rod 11.

[0035] In addition, a plurality of limiting grooves 16 are formed in the forced centering disc 1, and the plurality of limiting grooves 16 are distributed in a circumferential array along the central axis of the forced centering disc 1. The limiting groove 16 is larger than the arc-shaped matching part 21, and the arc-shaped matching part 21 is in driving clamping cooperation with the limiting groove 16.

[0036] An observation opening 4 is formed in the protective cover 3, and a plurality of wave-shaped protruding strips 17 are arranged above the observation opening 4. A flow guide groove 18 is formed in the protruding strip 17, so that the operator can easily take and use the flow guide groove 18 above the protruding strip 17 to guide the water flowing down from the top of the protective cover 3, thereby avoiding the water flowing into the device through the observation opening 4.

[0037] Working principle:

[0038] I. Place the fixed base plate 9 in the forced centering disc 1 on the observation pier, control the coaxiality of the two, so that the bottom of the fixing bolt 101 passes through the base plate 9 and extends into the forced centering disc 1, and the fixing bolt 101 is tightened by about 1 / 2. Then rotate the fixed base plate 9 horizontally, clamp the three leveling bolts 7 into the three grooves 15 of the forced centering disc 1, and rotate the leveling bolt 7 so that the tip of the leveling bolt 7 is in contact with the forced centering disc 1.

[0039] Then, the level 8 on the top surface of the fixed base plate 9 is observed, and the height of the three leveling bolts 7 is adjusted by the external wrench until the bubbles in the two tube levels 8 are centered, so that the preliminary leveling of the fixed base plate 9 is realized.

[0040] Subsequently, the prism fixing rod 10 is slowly rotated, the prism fixing rod 10 drives the fixing bolt 101 to slowly rotate through the universal joint 19, the indication of the two levels 8 is observed while fastening, and appropriate adjustment is performed when necessary, until the fixing bolt 101 is completely fastened and the two levels 8 are also just centered, so that the final leveling and fastening are completed. During the whole leveling and fastening process, the operator appropriately presses the center of the fixed base plate 9 with one hand, and slowly performs the leveling or fastening operation with the other hand.

[0041] II. Adjust the orientation of the prism 5.

[0042] III. Adjust the direction of the protective cover 3 according to the prism 5, insert the protective cover 3 between the fixed base plate 9 and the forced centering disc 1, and the arc-shaped matching part 21 on the clamping plate 2 will push the clamping plate 2 to slide into the groove 6 under the obstruction of the forced centering disc 1, the spring 12 is gradually compressed, and the telescopic rod 11 is gradually retracted. When the arc-shaped matching part 21 slides down to be opposite to the limiting groove 16, the arc-shaped matching part 21 will be inserted into the limiting groove 16 under the elastic action of the spring 12, so that the protective cover 3 is limited, the sliding of the protective cover 3 under the influence of the external environment is avoided, the deviation of the observation port 4 after adjustment is avoided, the normal monitoring of the prism 5 is ensured, and better practical effect is achieved. When disassembly is required, the protective cover 3 can be pulled out only by pressing the clamping plate 2. (It should be noted that the outer arc surface of the fixed base plate 9 and the inner arc surface of the protective cover 3 leave a certain gap, and the fixed base plate 9 only performs small-amplitude adjustment, which will not affect the insertion of the protective cover 3)

[0043] In addition, the water flowing down from the top of the protective cover 3 can be guided by the flow guide groove 18 above the protruding strip 17, so as to avoid the water flowing into the device through the observation port 4.

[0044] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A monitoring and protection device for centring and levelling, comprising a forced centring disc (1) and a cardan (19) fixedly mounted on an observation pier, characterised in that, The upper part of the forced centering disc (1) is placed with a fixed bottom disc (9) and is provided with a prism fixing rod (10), the fixed bottom disc (9) is sleeved on the outer surface of the prism fixing rod (10); the bottom of the prism fixing rod (10) is connected with a fixed bolt (101) through a universal joint (19), the fixed bolt (101) is in threaded connection with the forced centering disc (1); the sliding insertion protection cover (3) is arranged between the forced centering disc (1) and the fixed bottom disc (9), a plurality of recesses (6) are formed in the outer arc surface of the protection cover (3), and the plurality of recesses (6) are distributed in a circumferential array around the central axis of the protection cover (3); the clamping plate (2) is arranged in the recess (6) in the radial direction of the protection cover (3), and the elastic element is arranged between the clamping plate (2) and the recess (6); the arc-shaped matching part (21) is fixedly arranged on the clamping plate (2), a plurality of limiting grooves (16) are formed in the forced centering disc (1) and are distributed in a circumferential array around the central axis of the forced centering disc (1), and the arc-shaped matching part (21) is in transmission clamping connection with the limiting groove (16).

2. A monitoring and protection device for centering and leveling according to claim 1, characterized in that, The top of the prism fixing rod (10) is fixedly provided with a support frame (14), and the prism (5) is installed on the support frame (14).

3. A monitoring and protection device for centering and leveling according to claim 1, characterized in that, Two levelers (8) are fixedly installed on the fixed bottom disc (9).

4. The self-leveling monitoring and protection device of claim 1, wherein, The fixed bottom disc (9) is provided with a leveling mechanism, the leveling mechanism comprises leveling bolts (7), three positioning holes (13) are formed in the fixed bottom disc (9) and are distributed in a circumferential array around the center of the fixed bottom disc (9), and the included angle between the positioning holes (13) is 120°; the leveling bolt (7) is in threaded connection with each positioning hole (13), three strip-shaped grooves (15) are formed in the forced centering disc (1) and are symmetrically distributed at an included angle of 120°, and the three leveling bolts (7) symmetrically distributed at an included angle of 120° are just matched with the three strip-shaped grooves (15) symmetrically distributed at an included angle of 120°.

5. The self-leveling monitoring and protection device of claim 1, wherein, The elastic element comprises a telescopic rod (11), the telescopic rod (11) is fixedly arranged between the clamping plate (2) and the recess (6), one end of the telescopic rod (11) is fixedly connected with the clamping plate (2), and the other end of the telescopic rod (11) is fixedly connected with the recess (6); the spring (12) is sleeved on the outer surface of the telescopic rod (11), and the telescopic direction of the spring (12) is the same as that of the telescopic rod (11).

6. The self-leveling monitoring and protection device of claim 1, wherein, An observation port (4) is formed in the protection cover (3), a plurality of wave-shaped protruding strips (17) are arranged above the observation port (4), and flow guide grooves (18) are formed in the protruding strips (17).

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