Reel capable of positively and negatively installing coil spring

Abstract

The utility model discloses a reel capable of positively and negatively installing a coil spring. The reel comprises a rotary disc body, a rack, a guide port, a connecting plate, a ratchet wheel, a pawl and the coil spring, a main shaft is fixed to the center of the rotary disc body, the rack is rotationally connected with the main shaft, and the guide opening is fixed to mounting holes formed in the rack in a circumferential array mode through a connecting plate. The ratchet wheel is fixed on the rotary disc body, the pawl is fixed with a mounting shaft on the rack, two L-shaped notches are symmetrically formed in the section of one end of the main shaft, one end of the coil spring is clamped at one L-shaped notch, and the other end of the coil spring is hooked on the mounting shaft. Through the design of the two symmetrical L-shaped notches in the main shaft, the coil spring can be installed forwards and backwards, meanwhile, the installation holes formed in the machine frame in an array mode can enable the guide openings to be installed in different directions according to requirements, and therefore under the condition that original parts are not changed, the orientation of the hose is changed only through different installation modes, and the installation efficiency is improved. And different site installation requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of reel technology, and in particular to a reel with reversible winding springs. Background Technology

[0002] A coil spring is usually installed on the main shaft of the reel. The elastic restoring force of the coil spring is used to wind up the hose. In the workshop, in order to save space, a reel is usually connected to each side of the base station. When the two reels are the same, the pipe connected to the base station by one of the reels needs to go around the reel, which increases the length of the pipe and occupies space.

[0003] To bring the end of the reel connected to the base station closer to the base station, the ends of the two reels connected to the base station need to face opposite directions, such as... Figure 1 As shown, the right end of the left reel 16 is connected to the base station 15, and the left end of the right reel 16 is connected to the base station 15. The end of the reel connected to the base station is the media input end, and the end connected to the flexible hose is the media output end. When the media input ends of the two reels are different, but the pull-out direction of the flexible hose on the reels is the same, the installation methods of the two reels must be different. However, the installation direction of the coil spring in existing reels is singular. The installation direction of the coil spring determines the pull-out direction of the flexible hose; that is, the orientation of the rotary joint and the pull-out direction of the flexible hose are fixed. This necessitates the design of two different reel structures, thereby increasing production costs.

[0004] In addition, existing reels only have an interface for connecting to the base station at one end. When used for dual flexible hose operation, two interfaces need to be set at the same end. Usually, the two base stations are not arranged on the same side, so the pipeline connection is inconvenient. Secondly, the pipeline design inside the spindle also needs to be divided into two channels that connect to the two interfaces respectively. This results in a smaller inner diameter of a single channel under the same diameter size, which affects the flow rate.

[0005] Therefore, it is necessary to design a reel that can adjust the installation direction according to site requirements and ensure the fluid output speed in the hose. Utility Model Content

[0006] To address the technical problem that existing reels have a single installation direction for the coil spring, making it impossible to arbitrarily adjust the installation method of the reel according to site requirements, thus increasing the number of reel models and production costs, this utility model provides a reel with a coil spring that can be installed in both directions to solve the above problems.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a reel with a reversible coil spring, including a rotary table body, a frame, a guide port, a connecting plate, a ratchet, a pawl, and a coil spring; a main shaft is fixed at the center of the rotary table body, the frame is rotatably connected to the main shaft, and the guide port is fixed to the mounting holes arranged in a circular array on the frame through the connecting plate; the ratchet is fixed on the rotary table body, the pawl is fixed to the mounting shaft on the frame, one end of the main shaft has two symmetrically arranged L-shaped slots, one end of the coil spring is stuck in one of the L-shaped slots, and the other end of the coil spring is hooked on the mounting shaft.

[0008] In an optional embodiment of this invention, the ratchet is fan-shaped.

[0009] In an optional embodiment of this utility model, the frame includes a spring housing, the spring is disposed inside the spring housing, and the ratchet and pawl are located between the spring housing and the axial end faces of the rotary table body.

[0010] In an optional embodiment of this utility model, the frame includes a vertical plate and a horizontal support plate, wherein the vertical plate is located at one end of the rotary table or symmetrically arranged at both ends of the rotary table.

[0011] In an optional embodiment of this utility model, a flexible hose connector is rotatably connected to the main shaft, an external connector is rotatably connected to the end of the main shaft, and a flow channel connecting the flexible hose connector and the external connector is provided inside the main shaft.

[0012] In an optional embodiment of this utility model, the flow channel inside the main shaft runs through both ends of the main shaft, one end of the main shaft is blocked, and the other end is connected to an external connector.

[0013] In an optional embodiment of this utility model, two hose connectors are provided, and the main shaft has a flow channel that is connected to both ends by the two hose connectors respectively.

[0014] In an optional embodiment of this invention, the pawl is located directly below the spindle.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model uses the design of two symmetrical L-shaped slots on the main shaft to allow the coil spring to be installed in both directions. At the same time, the array of mounting holes on the frame also allows the guide port to be installed in different directions according to the requirements. Thus, without changing the original parts, the direction of the hose can be changed by simply changing the installation method to meet the installation requirements of different sites.

[0017] (2) The present invention has a through-flow channel on the main shaft, and an external connector can be installed at one end according to actual needs.

[0018] (3) This utility model, when used in double hose operation, ensures that each flow channel is filled with the entire main shaft by setting flow channels at both ends of the main shaft, thereby increasing the flow velocity of the fluid and ensuring the output flow rate. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the connection between the reel with reversible coil springs described in this utility model and the base station;

[0021] Figure 2 This is a perspective view of a specific embodiment of the reel with reversible coil springs described in this utility model;

[0022] Figure 3 This is a front view of the reel with reversible coil springs described in this utility model;

[0023] Figure 4 yes Figure 3 Sectional view along axis AA;

[0024] Figure 5 yes Figure 3 BB-direction sectional view;

[0025] Figure 6 This is an axial sectional view of a specific embodiment of the reel with reversible coil springs described in this utility model.

[0026] In the diagram, 1. Rotary table body, 2. Frame, 201. Vertical plate, 202. Horizontal support plate, 203. Outer cover, 3. Guide port, 4. Connecting plate, 5. Ratchet, 6. Pad, 7. Coil spring, 8. Main shaft, 9. Mounting hole, 10. Mounting shaft, 11. L-shaped groove, 12. Flexible hose connector, 13. External connector, 14. Flow channel, 15. Base station, 16. Reel. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] Example 1

[0029] like Figures 2-5As shown, a reel with reversible coil spring mounting includes a rotary table body 1, a frame 2, a guide port 3, a connecting plate 4, a ratchet 5, a pawl 6, and a coil spring 7. A flexible hose is wound around the rotary table body 1, and a main shaft 8 is fixed at the center of the rotary table body 1. The frame 2 is rotatably connected to the main shaft 8. The guide port 3 is fixed to the mounting holes 9 arranged in a circular array on the frame 2 through the connecting plate 4. When the guide port 3 is switched between the rotary table body 1 and the frame 2, it is only necessary to connect the corresponding mounting holes 9. The ratchet 5 is fixed to the rotary table body 1, and the pawl 6 is fixed to the mounting shaft 10 on the frame 2. The mounting shaft 10 is not coaxial with the main shaft 8. One end of the main shaft 8 has two symmetrical L-shaped slots 11. These L-shaped slots 11 are the key to realizing the reversible mounting of the coil spring 7. One end of the coil spring 7 is stuck in one of the L-shaped slots 11, and the other end of the coil spring 7 is hooked on the mounting shaft 10. The mounting shaft 10 is a fixed structure.

[0030] like Figure 5 As shown, when the coil spring 7 is engaged in the L-shaped slot 11 on the left, the unwinding direction is counterclockwise. That is, when the main shaft 8 rotates counterclockwise, since one end of the coil spring 7 connected to the mounting shaft 10 is fixed, the main shaft 8 drives the center of the coil spring 7 to tighten and store force for unwinding. The unwinding direction is to the left side of the rotary table 1, and the guide port 3 is located on the left side of the rotary table 1. After unwinding, the coil spring 7's restoring force achieves winding. When the coil spring 7 is engaged in the L-shaped slot 11 on the right, the unwinding direction is clockwise. That is, when the main shaft 8 rotates clockwise, the main shaft 8 drives the center of the coil spring 7 to tighten and store force for unwinding. The unwinding direction is to the right side of the rotary table 1, and the guide port 3 is located on the right side of the rotary table 1. It should be noted that when the mounting direction of the coil spring 7 changes, the pawl 6 and ratchet 5 also need to be reversed accordingly.

[0031] This allows for the same type of reel 16 (meaning the same type of components) to be connected to base stations 15 on different sides by changing the installation method, and also ensures consistency in the orientation of the hose.

[0032] Compared with the traditional reel 16, this utility model can achieve the unified manufacturing of the same component, thereby reducing production costs.

[0033] The frame 2 supports the reel 16 and mainly includes a vertical plate 201 and a horizontal support plate 202. The horizontal support plate 202 is located at the bottom of the vertical plate 201 and contacts the ground. The vertical plate 201 is rotatably connected to the main shaft 8. The vertical plate 201 is located at one end of the rotary table 1 or symmetrically arranged at both ends of the rotary table 1. When the hose is heavy, vertical plates 201 arranged symmetrically at both ends can be used to ensure stability.

[0034] To protect the coil spring 7 and to limit its movement space, the frame 2 typically includes a coil spring box, within which the coil spring 7 is housed. The ratchet 5 and pawl 6 are located between the coil spring box and the axial end faces of the rotary table 1. Figure 2 As shown, an outer cover 203 is fixed at one end of the vertical plate 201. The outer cover 203 and the vertical plate 201 form a spring box. The thickness of the spring box is slightly greater than that of the spring 7, so that the spring 7 can only rotate.

[0035] The ratchet 5 can be circular, but the teeth on the ratchet 5 are not fully circumferential. A certain circumferential gap needs to be left for the pawl 6 to change direction. When the pawl 6 stops unwinding during its movement between the teeth, the pawl 6 cannot lock onto the ratchet 5. Only when the pawl 6 stops unwinding before it contacts the teeth can the pawl 6 change direction and lock onto the teeth of the ratchet 5. In order to leave more room for the pawl 6 to change direction, the ratchet 5 is preferably fan-shaped in this utility model.

[0036] Example 2

[0037] A flexible hose connector 12 is typically rotatably connected to the main shaft 8 for connecting a flexible hose. An external connector 13 is rotatably connected to the end of the main shaft 8 for connecting to a base station 15. The main shaft 8 has a flow channel 14 connecting the flexible hose connector 12 and the external connector 13. The base station 15 is a station that provides working gas or liquid. In conventional structures, the flow channel 14 within the main shaft 8 is only connected to one end of the main shaft 8; in this embodiment, the flow channel extends through both ends of the main shaft 8 (e.g., ...). Figure 6 As shown in the figure, in actual use, simply select one end to connect to the external connector 13 as needed, and then seal the other end.

[0038] Example 3

[0039] This embodiment is mainly used for double hose operation, that is, two hoses are wound on the rotary table body 1, and different working media flow in the two hoses. At this time, there are two hose connection joints. Unlike the conventional reel 16, this embodiment has a flow channel 14 in the main shaft 8, which is connected to both ends by the two hose connection joints respectively, and the two flow channels 14 are not connected (not shown in the figure).

[0040] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A reel with a reversible coil spring, characterized in that: Includes rotary table body, frame, guide port, connecting plate, ratchet, pawl and coil spring; A main shaft is fixed at the center of the rotary table body. The frame is rotatably connected to the main shaft. The guide port is fixed to the mounting holes arranged in a circular array on the frame through a connecting plate. The ratchet is fixed on the rotary table body, and the pawl is fixed to the mounting shaft on the frame. One end of the main shaft has two L-shaped slots symmetrically arranged on its cross section. One end of the coil spring is stuck in one of the L-shaped slots, and the other end of the coil spring is hooked on the mounting shaft.

2. The reel with reversible coil springs according to claim 1, characterized in that: The ratchet is fan-shaped.

3. The reel with reversible coil springs according to claim 1, characterized in that: The frame includes a spring housing, the spring is disposed inside the spring housing, and the ratchet and pawl are located between the spring housing and the axial end faces of the rotary table body.

4. The reel with reversible coil springs according to claim 1, characterized in that: The frame includes a vertical plate and a horizontal support plate, with the vertical plate located at one end of the rotary table or symmetrically arranged at both ends of the rotary table.

5. The reel with reversible coil springs according to claim 1, characterized in that: A flexible hose connector is rotatably connected to the main shaft, and an external connector is rotatably connected to the end of the main shaft. The main shaft has a flow channel connecting the flexible hose connector and the external connector.

6. The reel with reversible coil springs according to claim 5, characterized in that: The flow channel inside the main shaft runs through both ends of the main shaft, with one end of the main shaft blocked and the other end connected to an external connector.

7. The reel with reversible coil springs according to claim 5, characterized in that: The hose connector is provided in two parts, and the main shaft has a flow channel that is connected to both ends by the two hose connectors respectively.

8. The reel with reversible coil springs according to claim 1, characterized in that: The pawl is located directly below the spindle.

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