A retractable and rotatable wire suspension bracket for contact measurement

Abstract

The utility model relates to the technical field of measuring equipment for underground structure construction, in particular to a telescopic and rotatable wire suspension bracket for contact measurement, which can adjust the front and rear positions of the wire rope in a shaft, avoid the wire rope from being too far forward or far backward in the shaft, prevent it from sticking to the inner wall of the shaft and affecting the descent of the wire rope, and improve practicality; it comprises a U-shaped bracket, the front end of the U-shaped bracket is fixedly connected to a support plate, a winch is arranged on the support plate, a brake device is arranged on the winch, a wire rope is wound on the winch, one end of the wire rope is fixed on the winch, a support frame is fixedly connected to the rear side of the top end of the U-shaped bracket, a connecting rod is fixedly connected to the support frame, a guide notch is arranged on the cantilever beam, a roller frame is fixedly arranged on the lower side of the top end of the cantilever beam, a lower groove roller is rotatably arranged on the roller frame, one end of the wire rope is fixed on the winch, and the other end of the wire rope naturally droops after passing around the lower groove roller and the upper groove roller in sequence.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment for underground structure construction, in particular to a telescopic and rotatable steel wire suspension bracket used for connection measurement. Background Art

[0002] During the construction of the shaft, the plane coordinates and elevation of the ground control points need to be measured to the bottom of the shaft through connecting measurement to measure and locate the shaft. During the connecting measurement process, a steel wire or steel ruler is hung above the shaft retaining wall. Usually, expansion screws are driven above the retaining wall to fix the wire bracket.

[0003] When performing connection measurement, a wire suspension bracket is required. In the prior art, for example, patent publication number CN215292485U discloses a vertical shaft connection measurement wire suspension device. The connection measurement wire suspension device facilitates the installation and movement of the wire suspension device and the wire, and the suspension device can adjust the fixed position of the wire within a certain range, so that in a well directional connection measurement, the connection triangle figure meets the requirements. During the measurement operation, it is convenient to quickly adjust the connection measurement figure, avoiding the problem of using expansion screws to fix and wire suspension angle difference in the previous connection measurement operation.

[0004] However, the above patent still has certain drawbacks when in use. During measurement, the cantilever beam can only drive the wire rope to swing left and right, but the angle of the cantilever beam is fixed, and the front and rear position of the wire rope in the shaft cannot be adjusted. The wire rope may be too far forward or too far back in the shaft, and it is easy to stick to the inner wall of the shaft and affect the descent of the wire rope, which is not practical enough. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a retractable and rotatable wire suspension bracket for contact measurement that can adjust the front and rear positions of the wire rope in the shaft, avoid the wire rope from being too far forward or too far back in the shaft, prevent it from sticking to the inner wall of the shaft and affecting the descent of the wire rope, and improve the practicality.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic and rotatable wire suspension bracket for contact measurement, comprising a U-shaped bracket and an adjusting mechanism, wherein the front end of the U-shaped bracket is fixedly connected to a support plate, a winch is arranged on the support plate, a brake device is arranged on the winch, a wire rope is wound on the winch, one end of the wire rope is fixed on the winch, the adjusting mechanism comprises a fixing frame and a cantilever beam, the fixing frame is fixedly mounted on the front side of the top end of the U-shaped bracket, an electric telescopic rod is fixedly mounted between the fixing frame and the U-shaped bracket, the output end of the electric telescopic rod is fixedly connected to a lifting plate, two sets of guide holes are symmetrically arranged on the fixing frame, and the bottom end of the lifting plate is symmetrically fixedly connected to the fixing frame. Two groups of guide rods are connected, and the two groups of guide rods are slidably installed on the fixed frame by cooperating with the guide holes. A universal joint is arranged in the middle of the top of the lifting plate, and a support frame is fixedly connected to the rear side of the top of the U-shaped bracket, and a connecting rod is fixedly connected to the support frame. A guide slot is arranged on the cantilever beam, and the cantilever beam is rotatably slidably sleeved on the connecting rod by cooperating with the guide slot. The bottom end of the cantilever beam is connected to the lifting plate through a universal joint, and an upper groove roller is rotatably arranged on the top of the cantilever beam, and a roller frame is fixedly arranged on the lower side of the top of the cantilever beam, and a lower groove roller is rotatably arranged on the roller frame, and one end of the wire rope is fixed on the capstan, and the other end of the wire rope naturally droops after passing around the lower groove roller and the upper groove roller in turn.

[0008] Preferably, two sets of knob bolts are symmetrically screwed on the front side of the U-shaped bracket.

[0009] Preferably, the bottom ends of the two groups of guide rods are fixedly connected to a limiting plate.

[0010] Preferably, reinforcing rods are fixedly connected between the left and right ends of the support frame and the top of the U-shaped frame, and reinforcing plates are fixedly connected between the left and right ends of the fixed frame and the top of the U-shaped frame.

[0011] Preferably, sliding sleeves are fixedly provided in the two groups of guide holes on the fixing frame.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when in use, the U-shaped bracket is clamped on the wellhead of the shaft, and the cantilever beam can swing left and right within a certain range on the connecting rod through the action of the universal joint and the cooperation of the guide groove and the connecting rod. When measuring, the electric telescopic rod is started to push the lifting plate to move upward, and the lifting plate drives the guide rod to slide upward along the guide hole, so that the lifting plate moves upward smoothly, and the lifting plate drives the cantilever beam to swing clockwise through the universal joint, so that the cantilever beam drives the upper groove roller to extend above the shaft during the swing, so that the upper groove roller extends to the top of the shaft with the wire rope, so that the wire rope naturally droops into the shaft, so that the wire rope is kept in an appropriate position in the middle of the shaft, and then the descending length of the wire rope in the shaft is controlled by adjusting the winch, so that the front and rear position of the wire rope in the shaft can be adjusted, so as to avoid the wire rope being too far forward or far back in the shaft, and prevent it from sticking to the inner wall of the shaft and affecting the descent of the wire rope, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the axonometric structure of the utility model when installed with the wellhead in use;

[0015] Figure 3 It is a schematic diagram of the axonometric structure of the cantilever beam in the utility model;

[0016] Figure 4 It is a schematic diagram of the axonometric structure of the support frame in the utility model;

[0017] Markings in the attached drawings: 1. U-shaped bracket; 2. Support plate; 3. Winch; 4. Braking device; 5. Wire rope; 6. Fixed bracket; 7. Electric telescopic rod; 8. Lifting plate; 9. Guide rod; 10. Universal joint; 11. Support bracket; 12. Connecting rod; 13. Cantilever beam; 14. Upper groove roller; 15. Roller bracket; 16. Lower groove roller; 17. Knob bolt; 18. Limit plate; 19. Reinforcement rod; 20. Reinforcement plate; 21. Sleeve. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] Example

[0020] See also Figure 1-Figure 4The utility model is a telescopic and rotatable wire suspension bracket for contact measurement, comprising a U-shaped bracket 1, a support plate 2 is fixedly connected to the front end of the U-shaped bracket 1, a winch 3 is arranged on the support plate 2, a brake device 4 is arranged on the winch 3, a wire rope 5 is wound around the winch 3, one end of the wire rope 5 is fixed on the winch 3, a fixing frame 6 is fixedly installed on the front side of the top end of the U-shaped bracket 1, an electric telescopic rod 7 is fixedly installed between the fixing frame 6 and the U-shaped bracket 1, a lifting plate 8 is fixedly connected to the output end of the electric telescopic rod 7, two sets of guide holes are symmetrically arranged on the fixing frame 6, and the bottom end of the lifting plate 8 is symmetrically fixed Two sets of guide rods 9 are fixedly connected, and the two sets of guide rods 9 are slidably installed on the fixed frame 6 by cooperating with the guide holes. A universal joint 10 is arranged in the middle of the top of the lifting plate 8. A support frame 11 is fixedly connected to the rear side of the top of the U-shaped bracket 1, and a connecting rod 12 is fixedly connected to the support frame 11. A guide slot is arranged on the cantilever beam 13, and the cantilever beam 13 can be rotatably slidably sleeved on the connecting rod 12 by cooperating with the guide slot. The bottom end of the cantilever beam 13 is connected to the lifting plate 8 through the universal joint 10, and an upper groove roller 14 is rotatably arranged on the top of the cantilever beam 13. A roller frame 15 is fixedly arranged on the lower side of the top of the cantilever beam 13. The roller frame A lower groove roller 16 is rotatably arranged on 15, one end of the wire rope 5 is fixed on the winch 3, and the other end of the wire rope 5 is naturally drooped after passing through the lower groove roller 16 and the upper groove roller 14 in sequence; when in use, the U-shaped bracket 1 is clamped on the wellhead of the vertical shaft, and the cantilever beam 13 can swing left and right within a certain range on the connecting rod 12 through the action of the universal joint 10 and the cooperation between the guide notch and the connecting rod 12. When measuring, the electric telescopic rod 7 is started to make the electric telescopic rod 7 push the lifting plate 8 to move upward, and the lifting plate 8 drives the guide rod 9 to slide upward along the guide hole, so that the lifting plate 8 moves upward horizontally The lifting plate 8 drives the cantilever beam 13 to swing clockwise through the universal joint 10, so that the cantilever beam 13 drives the upper groove roller 14 to extend above the shaft during the swinging, so that the upper groove roller 14 extends above the shaft with the steel wire rope 5, so that the steel wire rope 5 naturally droops into the shaft, so that the steel wire rope 5 is kept in the appropriate position in the middle of the shaft, and then the descending length of the steel wire rope 5 in the shaft is adjusted and controlled by the winch 3, so that the front and rear positions of the steel wire rope in the shaft can be adjusted to avoid the steel wire rope being too far forward or far back in the shaft, and to prevent the steel wire rope from sticking to the inner wall of the shaft and affecting the descent of the steel wire rope, thereby improving practicality.

[0021] The front side of the U-shaped bracket 1 is symmetrically threaded with two sets of knob bolts 17; by providing the knob bolts 17, when the U-shaped bracket 1 is clamped on the wellhead, the knob bolts 17 are tightened so that the ends of the knob bolts 17 are tightly against the wellhead, which can make the U-shaped bracket 1 clamped more securely.

[0022] The bottom ends of the two groups of guide rods 9 are fixedly connected to the limit plates 18; by providing the limit plates 18, it is possible to prevent the lifting plate 8 from driving the guide rods 9 to slide upwards and thus play a limiting role.

[0023] Reinforcing rods 19 are fixedly connected between the left and right ends of the support frame 11 and the top of the U-shaped bracket 1, and reinforcing plates 20 are fixedly connected between the left and right ends of the fixed frame 6 and the top of the U-shaped bracket 1; by providing the reinforcing rods 19 and the reinforcing plates 20, the connection between the support frame 11 and the fixed frame 6 and the U-shaped bracket 1 can be made more firm and stable.

[0024] Sliding sleeves 21 are fixedly disposed in the two sets of guide holes on the fixing frame 6 ; by providing the sliding sleeves 21 , the guide rod 9 can slide more smoothly on the fixing frame 6 .

[0025] The utility model is a telescopic and rotatable wire hanging bracket for contact measurement. Its working principle is that when in use, the U-shaped bracket 1 is clamped on the wellhead of the shaft, and the cantilever beam 13 can swing left and right within a certain range on the connecting rod 12 through the action of the universal joint 10 and the cooperation of the guide groove and the connecting rod 12. During measurement, by starting the electric telescopic rod 7, the electric telescopic rod 7 pushes the lifting plate 8 to move upward, and the lifting plate 8 drives the guide rod 9 to slide upward along the guide hole, so that the lifting plate 8 moves upward smoothly, and the lifting plate 8 drives the cantilever beam 13 to swing clockwise through the universal joint 10, so that the cantilever beam 13 drives the upper groove roller 14 to extend above the shaft during the swing, so that the upper groove roller 14 extends to the top of the shaft with the steel wire rope 5, so that the steel wire rope 5 naturally droops into the shaft, so that the steel wire rope 5 is kept at an appropriate position in the middle of the shaft, and then the descending length of the steel wire rope 5 in the shaft is controlled by adjusting the winch 3.

[0026] The utility model is a telescopic and rotatable wire suspension bracket for contact measurement, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved; the electric telescopic rod of the telescopic and rotatable wire suspension bracket for contact measurement of the utility model is purchased on the market, and the technical personnel in this industry only need to install and operate it according to the instruction manual attached thereto. The winch, brake device and universal joint in this application are all cited from a shaft contact measurement wire suspension device disclosed in patent publication number CN215292485U, which belongs to the prior art. Its specific structure and working principle have been described in detail in the cited patent, so no excessive elaboration is made here.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A retractable and rotatable wire suspension bracket for contact measurement, comprising a U-shaped bracket (1), characterized in that: Also includes a regulating mechanism; A U-shaped bracket (1), wherein a support plate (2) is fixedly connected to the front end of the U-shaped bracket (1), a winch (3) is arranged on the support plate (2), a brake device (4) is arranged on the winch (3), a steel wire rope (5) is wound around the winch (3), and one end of the steel wire rope (5) is fixed on the winch (3); The adjustment mechanism comprises a fixing frame (6) and a cantilever beam (13), wherein the fixing frame (6) is fixedly mounted on the front side of the top end of the U-shaped bracket (1), an electric telescopic rod (7) is fixedly mounted between the fixing frame (6) and the U-shaped bracket (1), an output end of the electric telescopic rod (7) is fixedly connected to a lifting plate (8), two groups of guide holes are symmetrically arranged on the fixing frame (6), two groups of guide rods (9) are symmetrically fixedly connected to the bottom end of the lifting plate (8), the two groups of guide rods (9) are slidably mounted on the fixing frame (6) by cooperating with the guide holes, a universal joint (10) is arranged in the middle of the top end of the lifting plate (8), and a support frame (11) is fixedly connected to the rear side of the top end of the U-shaped bracket (1), A connecting rod (12) is fixedly connected to the support frame (11), a guide notch is provided on the cantilever beam (13), the cantilever beam (13) is rotatably slidably sleeved on the connecting rod (12) through the cooperation of the guide notch, the bottom end of the cantilever beam (13) is connected to the lifting plate (8) through a universal joint (10), an upper groove roller (14) is rotatably provided on the top of the cantilever beam (13), a roller frame (15) is fixedly provided on the lower side of the top end of the cantilever beam (13), a lower groove roller (16) is rotatably provided on the roller frame (15), one end of the steel wire rope (5) is fixed on the capstan (3), and the other end of the steel wire rope (5) is naturally drooped after passing around the lower groove roller (16) and the upper groove roller (14) in sequence.

2. A retractable and rotatable wire suspension bracket for contact measurement as claimed in claim 1, characterized in that: The front side of the U-shaped bracket (1) is provided with two groups of knob bolts (17) which are symmetrically screwed thereon.

3. A retractable and rotatable wire suspension bracket for contact measurement as claimed in claim 2, characterized in that: The bottom ends of the two groups of guide rods (9) are fixedly connected to a limiting plate (18).

4. A retractable and rotatable wire suspension bracket for contact measurement as claimed in claim 3, characterized in that: Reinforcement rods (19) are fixedly connected between the left and right ends of the support frame (11) and the top of the U-shaped bracket (1), and reinforcement plates (20) are fixedly connected between the left and right ends of the fixed frame (6) and the top of the U-shaped bracket (1).

5. A retractable and rotatable wire suspension bracket for contact measurement as claimed in claim 4, characterized in that: Sliding sleeves (21) are fixedly arranged in the two groups of guide holes on the fixing frame (6).

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