Novel connecting device for settlement plate and metal measuring rod for subgrade settlement observation

Abstract

The utility model belongs to the technical field of measuring part equipment, and particularly relates to a novel connecting device for a metal measuring rod of a settlement plate for subgrade settlement observation, which comprises an upper connector, a hemispherical convex observation mark arranged at the top of the upper connector, and three concave connecting pieces arranged in a circumferential array on the upper connector in the circumferential direction, the bottom end of the upper connector is fixedly provided with a middle metal rod, the bottom end of the middle metal rod is fixedly provided with a lower connector, the inner wall of the lower connector is provided with three convex connecting pieces in a circumferential array in the circumferential direction, and the upper connector can be inserted into the lower connector. Meanwhile, compared with a traditional screw thread connection type sedimentation pipe, construction is simplified, using is easier and more convenient, the construction cost and the using cost are reduced, great convenience is achieved, interface loosening caused by factors such as mechanical construction is not likely to happen, and the measurement gross error is reduced.

Description

Technical Field

[0001] This utility model relates to the field of measuring component equipment technology; specifically, this utility model relates to a novel connecting device for a metal measuring rod of a roadbed settlement observation settlement plate. Background Technology

[0002] During the roadbed filling process, continuous settlement deformation monitoring of the cross-sectional base is required. To meet the needs of settlement monitoring, settlement plate measuring rods and protective sleeves need to be gradually connected as the roadbed filling construction progresses. The metal measuring rods are connected with internal joints, which are bidirectional internal threads. These joints are susceptible to loosening due to mechanical construction and other factors, leading to measurement errors.

[0003] In practice, the high settlement plate measuring rods are pre-embedded inside the roadbed. The metal measuring rods are connected by mortise and tenon structures. After the roadbed is laid, the metal measuring rods need to be removed. However, the mortise and tenon structure cannot remove all the metal measuring rods from inside the roadbed, resulting in the metal measuring rods remaining inside the roadbed and causing waste. Utility Model Content

[0004] In view of this, the present invention provides a novel connecting device for a metal measuring rod of a roadbed settlement observation settlement plate, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0005] To achieve the aforementioned objectives, this utility model provides a novel connecting device for a metal measuring rod on a roadbed settlement observation plate, comprising: an upper connector, the top of which is provided with a hemispherical protruding observation mark for measuring and placing a leveling rod; the upper connector having three concave connecting parts arranged in a circumferential array in the circumferential direction; a middle metal rod fixedly installed at the bottom of the upper connector; a lower connector fixedly installed at the bottom of the middle metal rod; the inner wall of the lower connector having three convex connecting parts arranged in a circumferential array in the circumferential direction; the upper connector being able to be inserted into the lower connector; and the concave and convex connecting parts being able to be locked together by clockwise rotation.

[0006] In the novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation as described above, optionally, the concave connecting member gradually increases in height from the outside to the inside, and the convex connecting member can be inserted into the concave connecting member.

[0007] In the aforementioned novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation, optionally, a connecting sleeve is provided on the outside of the lower connector, a high settlement plate is fixedly installed at the bottom end of the connecting sleeve, the lower connector is detachably installed inside the connecting sleeve, and a slot is provided on the side wall of the upper connector.

[0008] In the aforementioned novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation, optionally, the lower connector is fixedly installed on the inner wall of the bottom end of the middle metal rod, the lower connector can be inserted into a slot, the lower connector can slide inside the concave connector, and the end of the lower connector is provided with a convex connector.

[0009] In the novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation as described above, optionally, the connecting sleeve is provided with a plug connector inside, the plug connector is fixedly installed on the top surface of the high settlement plate, a rotating rod is rotatably installed inside the plug connector, a pushing block is fixedly installed on the outer wall of the bottom end of the rotating rod, a sliding groove is provided on the upper part of the pushing block, a strip groove is provided on the outer wall of the plug connector in a circular array, a slot is provided on the side wall of the strip groove, the direction of the slot is opposite to the direction of the slot, and the lower connector can be inserted into the slot.

[0010] In the novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation as described above, a movable rod is slidably installed inside the sliding groove one, and an insert block is fixedly installed on the outer wall of the movable rod. The end of the insert block away from the movable rod faces the slot one, and a through groove is opened inside the slot two, and the insert block is slidably installed in the through groove.

[0011] In the aforementioned novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation, optionally, a connecting rod is rotatably installed inside the middle metal rod, a connecting block is fixedly installed at the bottom end of the connecting rod, and a connecting head is fixedly installed at the top end of the connecting rod and the top end of the rotating rod. A connecting groove is provided on the outer wall of the connecting head, and the connecting block can be inserted into the connecting groove.

[0012] In the aforementioned novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation, optionally, a blocking block is slidably installed inside the connector, a movable sleeve is provided at the bottom end of the blocking block, the bottom surface of the blocking block contacts the top surface of the movable sleeve, a spring is fixedly installed on the bottom surface of the movable sleeve, and the end of the spring away from the movable sleeve is fixedly installed inside the upper connector.

[0013] In the aforementioned novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation, optionally, a limiting rod is fixedly installed on the outer wall of the blocking block, a strip groove three is provided inside the upper connector, an L-shaped groove is provided on the side of the strip groove three, and the limiting rod is slidably installed inside the strip groove three.

[0014] In the aforementioned novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation, optionally, a rotating ring is fixedly installed on the outer wall of the connecting rod, the top surface of the rotating ring contacts the inner wall of the top end of the middle metal rod, a second sliding groove is provided on the rotating ring, and a blocking rod is fixedly installed on the inner wall of the top end of the middle metal rod, the blocking rod being slidably installed inside the second sliding groove.

[0015] This utility model discloses a novel connecting device for a settlement plate metal measuring rod used in roadbed settlement observation. It employs a tubular mortise and tenon structure design, achieving a one-piece molding and convenient connection. Compared to traditional threaded connection settlement pipes, construction is simplified, and use is more convenient, reducing construction and operating costs. It offers significant convenience and eliminates the need for fixing the bidirectional internal thread, making the interface less susceptible to loosening due to mechanical construction or other factors, thus reducing measurement errors. Attached Figure Description

[0016] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0017] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0019] Figure 3 For the present utility model Figure 2 A schematic diagram of the structure after being cut open.

[0020] Figure 4 This is a schematic diagram of the structure of the connecting sleeve after being cut open in Embodiment 2 of this utility model.

[0021] Figure 5 This is a schematic diagram of the connecting rod in Embodiment 2 of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the metal rod in the middle after being cut open according to Embodiment 2 of this utility model.

[0023] Reference numerals in the attached diagram: 1. Upper connector; 1.1. Slot 1; 1.2. Strip groove 3; 1.3. L-shaped groove; 1.4. Rotary ring; 1.5. Sliding groove 2; 2. Observation mark; 3. Concave connector; 4. Middle metal rod; 4.1. Connecting rod; 4.2. Connecting block; 4.3. Connector; 4.4. Connecting groove; 4.5. Blocking block; 4.6. Moving sleeve; 4.7. Spring; 4.8. Limiting rod; 4.9. Blocking rod; 5. Lower connector; 6. Convex connector; 7. High settlement plate; 8. Connecting sleeve; 8.1. Insert connector; 8.2. Rotating rod; 8.3. Pushing block; 8.4. Sliding groove 1; 8.5. Strip groove 2; 8.6. Slot 2; 8.7. Moving rod; 8.8. Inserting block; 8.9. Through groove. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figure 1 As shown in Embodiment 1, a novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation includes: an upper connector 1, a hemispherical protruding observation mark 2 on the top of the upper connector for measuring and placing a leveling rod, three concave connectors 3 arranged in a circular array on the upper connector 1 in the circumferential direction, a middle metal rod 4 fixedly installed at the bottom of the upper connector 1, a lower connector 5 fixedly installed at the bottom of the middle metal rod 4, three convex connectors 6 arranged in a circular array on the inner wall of the lower connector 5 in the circumferential direction, the upper connector 1 can be inserted into the lower connector 5, and the concave connectors 3 and convex connectors 6 can be locked together by clockwise rotation.

[0026] In use, the two metal probes are assembled, the upper connector 4 of one is inserted into the lower connector 5 of the other, and the two metal probes are rotated relative to each other so that the concave connector 3 is inserted into the convex connector 6, thus fixing the two probes.

[0027] The concave connector 3 gradually increases in height from the outside to the inside, and the convex connector 6 can be inserted into the concave connector 3.

[0028] The friction between the concave connectors 3, the weight of the device, and the innermost groove ensure that the connection part of the convex connector 6 does not easily slip off.

[0029] like Figures 2 to 6As shown, in Embodiment 2, the lower connector 5 at the bottom is provided with a connecting sleeve 8 on its outside. A high settlement plate 7 is fixedly installed at the bottom end of the connecting sleeve 8. The lower connector 5 can be detachably installed inside the connecting sleeve 8. The side wall of the upper connector 4 is provided with a slot 1.1.

[0030] In actual operation, the high settlement plate 7 is placed on the ground, and the middle metal rod 4 is inserted into the connecting sleeve 8 through the lower connector 5, so that the middle metal rod 4 can be fixedly connected to the high settlement plate 7. After the connection is completed, the roadbed is laid on the ground. After the roadbed is laid, the ground is compacted. Since the middle metal rod 4 is fixedly connected to the high settlement plate 7 at this time, the middle metal rod 4 cannot rotate when the roadbed is compacted, so that the middle metal rod 4 will not move in the height direction, making the measurement results more accurate. After the first layer of roadbed is laid, the second layer of roadbed is laid.

[0031] If the height of the second roadbed is lower than that of the central metal pole 4, the second roadbed should be compacted after it is laid.

[0032] If the height of the second roadbed is higher than that of the middle metal pole 4, insert the lower connector 5 of the new middle metal pole 4 into the upper connector 4 to fix the new middle metal pole 4 to the original middle metal pole 4. After the connection is completed, lay the second roadbed. After laying, compact the second roadbed. If it is necessary to lay another roadbed after the second roadbed is laid, repeat the above steps.

[0033] The outer wall of the upper connector 4 is provided with concave connectors 3 arranged in a circular array. The side wall of the strip groove is provided with a slot 1.1. The lower connector 5 is fixedly installed on the inner wall of the bottom end of the middle metal rod 4. The lower connector 5 can be inserted into the slot 1.1. The lower connector 5 can slide inside the concave connector 3. The end of the lower connector 5 is provided with a convex connector 6.

[0034] When the lower connector 5 is inserted into the concave connector 3, the two middle metal rods 4 are initially fixed. When the lower connector 5 slides to the bottom of the concave connector 3, the upper middle metal rod 4 is rotated, causing the middle metal rod 4 to drive the lower connector 5 to rotate and insert into the slot 1.1, so that the two middle metal rods 4 are fixedly installed.

[0035] The connecting sleeve 8 has a plug 8.1 inside, which is fixedly installed on the top surface of the high settlement plate 7. A rotating rod 8.2 is rotatably installed inside the plug 8.1. A pushing block 8.3 is fixedly installed on the outer wall of the bottom end of the rotating rod 8.2. A head sliding groove 8.4 is opened on the upper part of the pushing block 8.3. The outer wall of the plug 8.1 has a strip groove 8.5 in a circular array. A slot 8.6 is opened on the side wall of the strip groove 8.5. The direction of the slot 8.6 is opposite to that of the slot 1.1. The lower connector 5 can be inserted into the slot 8.6.

[0036] When connecting the middle metal rod 4 and the high settlement plate 7, insert the middle metal rod 4 into the connecting sleeve 8, so that the lower connector 5 is first inserted into the concave connector 3, so that the middle metal rod 4 and the high settlement plate 7 are initially fixed. When the lower connector 5 reaches the bottom of the sliding groove 8.5, rotate the middle metal rod 4, so that the middle metal rod 4 drives the lower connector 5 to rotate and insert into the slot 8.6.

[0037] Then rotate the rotating rod 8.2 to fix the middle metal rod 4 to the high settlement plate 7. Since the first slot 1.1 and the second slot 8.6 are in opposite directions, when the middle metal rod 4 is rotated, the lower connector 5 is blocked by the second slot 8.6 to prevent the middle metal rod 4 from detaching from the high settlement plate 7.

[0038] A movable rod 8.7 is slidably installed inside the sliding groove 8.4. An insert block 8.8 is fixedly installed on the outer wall of the movable rod 8.7. The end of the insert block 8.8 away from the movable rod 8.7 faces the slot 1.1. A through groove 8.9 is opened inside the slot 2. The insert block 8.8 is slidably installed in the through groove 8.9.

[0039] When the rotating rod 8.2 rotates, it will cause the sliding groove 8.4 to rotate. When the sliding groove 8.4 rotates, the insertion block 8.8 is blocked by the side wall of the through groove 8.9, so that the rotation of the sliding groove 8.4 can drive the moving rod 8.7 to move and drive the insertion block 8.8 to insert into the convex connector 6, so that the central metal rod 4 and the high settlement plate 7 are fixedly installed.

[0040] A connecting rod 4.1 is rotatably mounted inside the central metal rod 4. A connecting block 4.2 is fixedly mounted at the bottom end of the connecting rod 4.1. A connector 4.3 is fixedly mounted at the top end of the connecting rod 4.1 and the top end of the rotating rod 8.2. A connecting groove 4.4 is provided on the outer wall of the connector 4.3, and the connecting block 4.2 can be inserted into the connecting groove 4.4.

[0041] When connecting the middle metal rod 4 and the high settlement plate 7, the connecting block 4.2 is inserted into the connecting groove 4.4 to stabilize and fix the connecting rod 4.1 and the high settlement plate 7, prevent the connecting rod 4.1 from rotating, and maintain the connection between the middle metal rod 4 and the high settlement plate 7.

[0042] A blocking block 4.5 is slidably installed inside the connector 4.3. A movable sleeve 4.6 is provided at the bottom end of the blocking block 4.5. The bottom surface of the blocking block 4.5 contacts the top surface of the movable sleeve 4.6. A spring 4.7 is fixedly installed on the bottom surface of the movable sleeve 4.6. The end of the spring 4.7 away from the movable sleeve 4.6 is fixedly installed inside the upper connector 4.

[0043] When the connecting rod 4.1 is connected to the high settlement plate 7, the connecting block 4.2 is inserted into the connecting groove 4.4, causing the blocking block 4.5 to move downward and drive the moving sleeve 4.6 to move upward, compressing the spring 4.7, so that the top of the blocking block 4.5 is lower than the bottom of the connector 4.3. At this time, the blocking block 4.5 will not block the connector 4.3, allowing the connector 4.3 to rotate and drive the rotating rod 8.2 to rotate.

[0044] A limiting rod 4.8 is fixedly installed on the outer wall of the blocking block 4.5. A strip groove 1.2 is opened inside the upper connector 4. An L-shaped groove 1.3 is opened on the side of the strip groove 1.2. The limiting rod 4.8 is slidably installed inside the strip groove 1.2.

[0045] When rotating the connector 4.3, the blocking block 4.5 of the upper central metal rod 4 is pressed down, so that the outer wall of the blocking block 4.5 coincides with the outer wall of the connector 4.3. At this time, the limiting rod 4.8 is located at the connection between the strip groove 1.2 and the L-shaped groove 1.3. Then, the connector 4.3 is rotated so that the connector 4.3 can drive the connecting rod 4.1 to rotate, and drive the rotating rod 8.2 to rotate. After the rotation is completed, the rotating head is released. At this time, the spring 4.7 returns to its original position and drives the moving sleeve 4.6 to move upward, and drives the blocking block 4.5 to move upward, so that the limiting rod 4.8 is located at the end of the L-shaped groove 1.3, so that the connector 4.3 completes the fixed connection.

[0046] A rotating ring 1.4 is fixedly installed on the outer wall of the connecting rod 4.1. The top surface of the rotating ring 1.4 contacts the inner wall of the top of the middle metal rod 4. A sliding groove 1.5 is provided on the rotating ring 1.4. A blocking rod 4.9 is fixedly installed on the inner wall of the top of the middle metal rod 4. The blocking rod 4.9 is slidably installed inside the sliding groove 1.5.

[0047] The swivel 1.4 can limit the rotation angle of the connecting rod 4.1, so that when controlling the connector 4.3 at the highest point, the rotation of the swivel 1.4 can be used to determine whether it is locked into the designated position. When connecting the two middle metal rods 4, the connector 4.3 is rotated first, and after being rotated to the designated position, the connector 4.3 is rotated in the opposite direction so that the two middle metal rods 4 are fixedly installed.

[0048] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A novel connecting device for a metal measuring rod used for roadbed settlement monitoring, characterized in that, include: The upper connector (1) has a hemispherical protruding observation mark (2) on its top for measuring and placing a leveling rod. The upper connector (1) has three concave connectors (3) arranged in a circular array in the circumferential direction. The lower connector (5) has a middle metal rod (4) fixedly installed at the bottom of the upper connector (1) and a lower connector (5) fixedly installed at the bottom of the middle metal rod (4). The lower connector (5) has three convex connectors (6) arranged in a circular array on its inner wall in the circumferential direction. The upper connector (1) can be inserted into the lower connector (5). The concave connectors (3) and convex connectors (6) can be locked together by rotating clockwise.

2. The novel connecting device for a roadbed settlement observation settlement plate metal measuring rod as described in claim 1, characterized in that, The concave connector (3) gradually increases in height from the outside to the inside, and the convex connector (6) can be inserted into the concave connector (3).

3. The novel connecting device for a roadbed settlement observation settlement plate metal measuring rod as described in claim 1, characterized in that, The lower connector (5) at the bottom is provided with a connecting sleeve (8) on its outside. A high settlement plate (7) is fixedly installed at the bottom end of the connecting sleeve (8). The lower connector (5) can be detachably installed inside the connecting sleeve (8). The upper connector (1) has a slot (1.1) on its side wall.

4. The novel connecting device for a roadbed settlement observation settlement plate metal measuring rod as described in claim 3, characterized in that, The lower connector (5) is fixedly installed on the inner wall of the bottom end of the middle metal rod (4). The lower connector (5) can be inserted into the slot (1.1). The lower connector (5) can slide inside the concave connector (3). The end of the lower connector (5) is provided with a convex connector (6).

5. The novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation as described in claim 3, characterized in that, The connecting sleeve (8) is provided with a plug (8.1) inside. The plug (8.1) is fixedly installed on the top surface of the high settlement plate (7). A rotating rod (8.2) is rotatably installed inside the plug (8.1). A pushing block (8.3) is fixedly installed on the outer wall of the bottom end of the rotating rod (8.2). A sliding groove (8.4) is opened on the upper part of the pushing block (8.3). A strip groove (8.5) is opened in a circular array on the outer wall of the plug (8.1). A slot (8.6) is opened on the side wall of the strip groove (8.5). The direction of the slot (8.6) is opposite to that of the slot (1.1). The lower connector (5) can be inserted into the slot (8.6).

6. The novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation as described in claim 5, characterized in that, A movable rod (8.7) is slidably installed inside the sliding groove one (8.4). An insert (8.8) is fixedly installed on the outer wall of the movable rod (8.7). The end of the insert (8.8) away from the movable rod (8.7) faces the slot one (1.1). A through groove (8.9) is opened inside the slot two (8.6). The insert (8.8) is slidably installed in the through groove (8.9).

7. The novel connecting device for a settlement plate metal measuring rod for roadbed settlement observation as described in claim 3, characterized in that, A connecting rod (4.1) is rotatably installed inside the central metal rod (4). A connecting block (4.2) is fixedly installed at the bottom end of the connecting rod (4.1). A connector (4.3) is fixedly installed at the top end of the connecting rod (4.1) and the top end of the rotating rod (8.2). A connecting groove (4.4) is provided on the outer wall of the connector (4.3). The connecting block (4.2) can be inserted into the connecting groove (4.4).

8. A novel connecting device for a roadbed settlement observation settlement plate metal measuring rod as described in claim 7, characterized in that, A blocking block (4.5) is slidably installed inside the connector (4.3). A movable sleeve (4.6) is provided at the bottom end of the blocking block (4.5). The bottom surface of the blocking block (4.5) is in contact with the top surface of the movable sleeve (4.6). A spring (4.7) is fixedly installed on the bottom surface of the movable sleeve (4.6). The end of the spring (4.7) away from the movable sleeve (4.6) is fixedly installed inside the upper connector (1).

9. A novel connecting device for a roadbed settlement observation settlement plate metal measuring rod as described in claim 8, characterized in that, A limiting rod (4.8) is fixedly installed on the outer wall of the blocking block (4.5). A strip groove three (1.2) is opened inside the upper connector (1). An L-shaped groove (1.3) is opened on the side of the strip groove three (1.2). The limiting rod (4.8) is slidably installed inside the strip groove three (1.2).

10. A novel connecting device for a roadbed settlement observation settlement plate metal measuring rod as described in claim 7, characterized in that, A rotating ring (1.4) is fixedly installed on the outer wall of the connecting rod (4.1). The top surface of the rotating ring (1.4) is in contact with the inner wall of the top end of the middle metal rod (4). A sliding groove (1.5) is provided on the rotating ring (1.4). A blocking rod (4.9) is fixedly installed on the inner wall of the top end of the middle metal rod (4). The blocking rod (4.9) is slidably installed inside the sliding groove (1.5).

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