Wiring construction device for power equipment installation

Abstract

The utility model discloses a stringing construction device for electrical equipment installation, relates to the technical field of stringing of electrical equipment, and aims to solve the technical problem that the stringing tension degree is affected due to the fact that the paying-off length of an electric wire is prolonged due to the inertia effect after a current paying-off device is pulled forcefully. The fixing piece is fixedly connected with the winding piece, the ratchet wheel is fixedly connected with the fixing piece, a bearing is fixedly arranged on the side, close to the winding piece, of the supporting piece, a rotating shaft fixedly connected with the winding piece is fixedly arranged on the rotating portion of the bearing, and a braking mechanism is connected between the supporting piece and the rotating shaft. In this way, when the electric wire is stopped from being pulled, the wire winding piece is stopped from automatically moving due to increase of friction force, so that the phenomenon that the pay-off length is too long is reduced, and the advantages that the rotation resistance of the wire winding piece under the inertia effect is increased, and the pay-off tension degree and accuracy are improved are achieved.

Description

Technical Field

[0001] This utility model relates to the field of power equipment overhead line technology, and more specifically, to an overhead line construction device for power equipment installation. Background Technology

[0002] Electrical equipment mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment mainly includes power plant boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc. Power supply equipment mainly includes transmission lines of various voltage levels, instrument transformers, contactors, etc. During the installation of electrical equipment, a line-laying construction device is usually needed to assist in the installation.

[0003] Currently, construction equipment used for indoor power equipment wiring generally includes a wire-laying device that winds up the wire. During the wire-laying process, pulling one end of the wire causes the winding roller on the wire-laying device to rotate, achieving the wire-laying effect. However, due to the pulling force during the wire-laying process, the winding roller will continue to rotate for a period of time due to inertia when the pulling of the wire stops, resulting in an extension of the wire length. This excessive wire length reduces the tension of the wiring, requiring manual adjustment of the wire-laying device to retract the extended wire, making the wire-laying operation inconvenient, affecting the accuracy of the wire length, and delaying the wiring time. In view of this, we propose a wire-laying construction device for power equipment installation. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a power equipment installation overhead line construction device to solve the technical problem that the current line laying device will cause the wire laying length to extend due to inertia after being pulled with force, thus affecting the tension of the overhead line.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a power equipment installation overhead line construction device, comprising a main body of a wire laying device composed of a support member and a wire winding member, wherein a bearing is fixedly provided on the side of the support member and the wire winding member close to each other, and a rotating shaft fixedly connected to the wire winding member is fixedly provided on the rotating part of the bearing, and a braking mechanism is connected between the support member and the rotating shaft.

[0006] The braking mechanism includes a fixing member fixed to the side of the support member near the winding member, an upwardly inclined pawl rotatably mounted on the outer wall of the fixing member, and a ratchet that abuts against the pawl fixed on the outer wall of the rotating shaft.

[0007] The support member is fixedly provided with an elastic limiting member with the same tilt angle as the pawl on the side near the ratchet, and the lower end of the elastic limiting member is in contact with the upper surface of the pawl.

[0008] This invention increases frictional resistance during the rotation of the winding mechanism by using a fixing component, pawl, and ratchet. This increased friction prevents the winding mechanism from automatically retracting when the wire is stopped, thus reducing the occurrence of excessively long unwinding. At the same time, the pawl, supported by the elastic limiting component, improves its contact with the ratchet surface, further enhancing the resistance to rotation. This improves the accuracy of the unwinding length and maintains good wire tension.

[0009] Preferably, the side of the pawl that contacts the ratchet wheel has several slots, and the side of the ratchet wheel that contacts the pawl has several teeth that engage with the slots.

[0010] Preferably, the elastic limiting member includes a fixing plate that is obliquely fixed to the side of the support member, and a spiral wave-shaped spring is fixedly provided on the side of the fixing plate near the pawl.

[0011] Preferably, the fixing member includes a fixing rod, a limiting ring that fits against one side of the pawl is fixedly provided on the rod wall of the fixing rod, and a threaded hole is provided at the other end of the fixing rod, and a screw that fits against the other side of the pawl is installed inside the threaded hole.

[0012] Preferably, the screw has an annular groove on the side close to the pawl, and the pawl has a plurality of balls arranged in an annular array on the side close to the screw, which engage with the annular groove.

[0013] Preferably, the cross-sectional shape of the slot and the tooth is a right triangle, and the side of the slot and the tooth near the top of the pawl is a bevel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model increases frictional resistance during the rotation of the winding component by using a combination of a fixing component, a pawl, and a ratchet. This increases friction and prevents the winding component from automatically reeling in wire when the wire is stopped, thus reducing the occurrence of excessively long wire unwinding. At the same time, the pawl, under the compression and support of the elastic limiting component, can improve its fit with the ratchet surface, further enhancing the resistance to rotation. This improves the accuracy of the unwinding length and maintains good wire tension.

[0016] 2. This utility model can further improve the resistance of contact between the pawl and the ratchet by the cooperation of the slot and the tooth, thereby further strengthening the limiting effect on the winding component, so that it can quickly brake and position when the wire is stopped, further reducing the range of rotation and reducing the time required for adjusting the tension of the wire. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a partial exploded view of the structure of this utility model;

[0020] Figure 4 for Figure 3 Enlarged structural diagram of section A;

[0021] Figure 5 for Figure 3 Enlarged structural diagram of section B;

[0022] Figure 6 This is a schematic diagram of one usage state of the present invention.

[0023] The following are the labels in the diagram: 1. Main body of the wire feeding device; 101. Support component; 102. Wire winding component; 103. Bearing; 104. Rotating shaft; 2. Braking mechanism; 3. Fixing component; 301. Fixing rod; 302. Limiting ring; 303. Threaded hole; 304. Screw; 305. Annular groove; 4. Pawl; 401. Slot; 402. Ball bearing; 5. Ratchet; 501. Gear; 6. Elastic limiting component; 601. Fixing plate; 602. Spring. Detailed Implementation

[0024] like Figures 1 to 6 As shown, this utility model relates to a power equipment installation overhead line construction device, including a main body 1 of a wire laying device composed of a support member 101 and a wire winding member 102. A bearing 103 is fixedly provided on the side of the support member 101 near the wire winding member 102. A rotating shaft 104 fixedly connected to the wire winding member 102 is fixedly provided on the rotating part of the bearing 103. A braking mechanism 2 is connected between the support member 101 and the rotating shaft 104. The braking mechanism 2 includes a fixing member 3 fixed on the side of the support member 101 near the wire winding member 102. An upwardly inclined pawl 4 is rotatably installed on the outer wall of the fixing member 3. A ratchet 5 is fixedly provided on the outer wall of the shaft 104 to abut against the pawl 4; the cooperation between the bearing 103 and the shaft 104 facilitates the rotation of the winding component 102, and can achieve the effect of automatic cable unwinding during cable pulling. The setting of the fixing part 3 can limit the installation position of the pawl 4, and also facilitate the rotation of the pawl 4. When the ratchet 5 rotates clockwise with the shaft 104, the side end of the pawl 4 can be squeezed upward by changing the position of the ratchet teeth. The contact between the two can increase the resistance of the winding component 102's rotation, thus reducing the rotation period when the tension is lost.

[0025] The support member 101 is fixedly provided with an elastic limiting member 6 with the same tilt angle as the pawl 4 on the side near the ratchet 5. The lower end of the elastic limiting member 6 is attached to the upper surface of the pawl 4. Through the cooperation between the elastic limiting member 6 and the pawl 4, the pawl 4 can be compressed and contracted when it moves upward, thereby forming an elastic force, so that the pawl 4 and the ratchet 5 can remain in a tight state.

[0026] In the embodiments of this utility model, a plurality of slots 401 are provided on the side of the pawl 4 that is in contact with the ratchet 5, and a plurality of teeth 501 that engage with the slots 401 are fixed on the side of the ratchet 5 that is in contact with the pawl 4. The engagement of the slots 401 and the teeth 501 can enhance the frictional resistance between the pawl 4 and the ratchet 5, thereby achieving a limiting effect and further improving the anti-rotation effect on the winding component 102.

[0027] In an embodiment of this utility model, the elastic limiting member 6 includes a fixing plate 601 that is inclinedly fixed to the side of the support member 101. A spiral wave-shaped spring 602 is fixed on the side of the fixing plate 601 near the pawl 4. After repeated compression and stretching, the spiral wave-shaped spring 602 can still maintain good elastic recovery characteristics and will not suffer from performance degradation due to elastic fatigue. In this way, it can maintain a good support effect under repeated compression by the pawl 4.

[0028] In an embodiment of this utility model, the fixing member 3 includes a fixing rod 301. A limiting ring 302 that fits against one side of the pawl 4 is fixedly provided on the rod wall of the fixing rod 301. A threaded hole 303 is provided at the other end of the fixing rod 301. A screw 304 that fits against the other side of the pawl 4 is installed inside the threaded hole 303. The installation position of the pawl 4 can be limited by the cooperation of the limiting ring 302 and the screw 304, and the outer side of the fixing rod 301 can be rotated to facilitate the position of the pawl 4.

[0029] In an embodiment of this utility model, an annular groove 305 is provided on the side of the screw 304 that is close to the pawl 4, and a plurality of balls 402 that engage with the annular groove 305 are arranged in annular array on the side of the pawl 4 that is close to the screw 304. The engagement of the annular groove 305 and the balls 402 can reduce the contact area between the pawl 4 and the screw 304, thereby reducing the friction between the pawl 4 and the screw 304 when the angle of the pawl 4 is repeatedly adjusted up and down, and improving the stability of the screw 304 installation position.

[0030] In the embodiments of this utility model, the cross-sectional shape of the slot 401 and the tooth 501 is a right triangle, and the side of the slot 401 and the tooth 501 near the top of the pawl 4 is a slope. When the ratchet 5 rotates clockwise, the rotational resistance can be reduced by the cooperation of the slope. When it rotates counterclockwise, the straight surface can play a limiting role. In this way, the slot 401 and the tooth 501 can restrict the rotation of the ratchet 5.

[0031] Working Principle: This embodiment provides a power equipment installation overhead line construction device. In use, the main body 1 of the wire-laying device is placed at the wire-laying position, and then the end of the wire is pulled. Due to friction, the winding device 102 rotates under the cooperation of the rotating shaft 104 and the bearing 103, thus achieving the wire-laying effect. Simultaneously, during the rotation of the rotating shaft 104, the ratchet 5 rotates synchronously. This causes the ratchet teeth on the surface of the ratchet 5 to press against the tip of the pawl 4, causing it to shift upwards and compress the spring 602. The force of the spring 602 keeps the pawl 4 and the ratchet 5 in a constant state of contact. When the cable is stopped being pulled, the friction generated by the contact between the pawl 4 and the ratchet 5 reduces the rotation speed of the winding component 102, thereby reducing the rotation range. This reduces the length of the cable automatically unwinding by the winding component 102, minimizing the impact of the unwinding process on the tension. Furthermore, the elastic support of the spring 602 allows the slot 401 to quickly engage with the outer side of the teeth 501 at different positions, further enhancing the anti-rotation limiting effect and effectively shortening the rotation cycle to achieve the effect of positioning and unwinding the cable. This structural combination improves the accuracy of the unwinding length and maintains the required tension for the cable.

[0032] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A power equipment installation overhead line construction device, characterized in that, The main body (1) of the wire feeding device includes a support member (101) and a winding member (102). A bearing (103) is fixedly provided on the side of the support member (101) close to the winding member (102). A rotating shaft (104) fixedly connected to the winding member (102) is fixedly provided on the rotating part of the bearing (103). A braking mechanism (2) is connected between the support member (101) and the rotating shaft (104). The braking mechanism (2) includes a fixing member (3) fixed on the side of the support member (101) near the winding member (102). An upwardly inclined pawl (4) is rotatably installed on the outer wall of the fixing member (3). A ratchet (5) that abuts against the pawl (4) is fixed on the outer wall of the rotating shaft (104). The support member (101) is fixedly provided with an elastic limiting member (6) with the same tilt angle as the pawl (4) on the side near the ratchet (5), and the lower end of the elastic limiting member (6) is attached to the upper surface of the pawl (4).

2. The overhead line construction device for power equipment installation according to claim 1, characterized in that, The pawl (4) has several slots (401) on the side that is in contact with the ratchet (5), and several teeth (501) that engage with the slots (401) are fixed on the side that is in contact with the ratchet (5).

3. The overhead line construction device for power equipment installation according to claim 1, characterized in that, The elastic limiting member (6) includes a fixing plate (601) that is inclinedly fixed to the side of the support member (101), and a spiral wave-shaped spring (602) is fixed on the side of the fixing plate (601) near the pawl (4).

4. The overhead line construction device for power equipment installation according to claim 1, characterized in that, The fixing member (3) includes a fixing rod (301), and a limiting ring (302) that fits against one side of the pawl (4) is fixed on the rod wall of the fixing rod (301). A threaded hole (303) is opened at the other end of the fixing rod (301), and a screw (304) that fits against the other side of the pawl (4) is installed inside the threaded hole (303).

5. The overhead line construction device for power equipment installation according to claim 4, characterized in that, The screw (304) has an annular groove (305) on the side close to the pawl (4), and the pawl (4) has a number of balls (402) arranged in annular array on the side close to the screw (304) that engage with the annular groove (305).

6. The overhead line construction device for power equipment installation according to claim 2, characterized in that, The cross-sectional shape of the slot (401) and the tooth (501) is a right triangle, and the side of the slot (401) and the tooth (501) near the top of the pawl (4) is a slope.

Images