Hose tightening machine

Abstract

The utility model discloses a hose tightening machine which comprises a machine base, a motor and a rotating component, and the motor is installed on the machine base. The rotating component comprises a driving shaft and a driven shaft used for driving the hose to rotate, the driving shaft is driven by the motor to rotate, the driven shaft can be arranged on the machine base in a mode of rotating around the axis of the driven shaft, and the driven shaft and the driving shaft are located on the same axis; the driven shaft and the driving shaft are matched with a clutch structure, so that the driven shaft has a first state of rotating along with the driving shaft and a second state of not rotating along with the driving shaft, and the driven shaft is switched to the second state when the hose is tightened. The rotating component has a clutch function, can drive the hose to rotate when the hose needs to be tightened, and stops driving the hose to rotate when the hose is tightened, so that the situation that the hose is tightened excessively is avoided, and a valve body and a motor which are connected with the hose are protected.

Description

Technical Field

[0001] The utility model relates to a device for connecting a hose, in particular to a hose tightening machine. Background Art

[0002] Hoses are often used in the bathroom field as water inlet pipes, water outlet pipes, etc. One end of the hose is generally provided with a threaded joint for threaded connection to the water inlet or outlet of the valve body, and the other end of the hose is provided with a rotatable locking nut for connecting the water inlet end of the water supply pipeline. Traditionally, the connection between the hose and the valve body is mostly tightened manually, but this method has low assembly efficiency. For this reason, the prior art has a hose assembly machine that can automatically tighten the hose. This assembly machine uses a motor to drive a rotating part to rotate, and then drives the hose to rotate through the rotating part, so that the end of the hose with a threaded joint is automatically threaded with the valve body. This assembly machine also uses a sensor to control whether the motor is working or not. When the hose is tightened, the hose is separated from the sensor, and the sensor controls the motor to turn off. However, this assembly machine has the following shortcomings: whether the hose leaves the sensor is manually controlled. If the worker fails to make the hose leave the sensor in time after the hose is tightened, the motor cannot be turned off in time, causing the motor to continue to drive the rotating parts to rotate, causing the rotating parts to continue to drive the hose to rotate in the tightening direction, which may eventually cause the hose to be over-tightened and damage the valve body. In addition, the pressure of the over-tightening is fed back to the motor, causing certain damage to the motor. Utility Model Content

[0003] The utility model aims at the technical problems existing in the prior art and provides a hose tightening machine, the rotating part of which has a clutch function, which can avoid excessive tightening of the hose, thus facilitating the protection of the valve body and the motor.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a hose tightening machine, including a machine base, a motor, and a rotating component, the motor is installed on the machine base; the rotating component includes a driving shaft and a driven shaft for driving the hose to rotate, the driving shaft is driven to rotate by the motor, the driven shaft can be rotatably arranged on the machine base around its axis, and the driven shaft and the driving shaft are located on the same axis; the driven shaft and the driving shaft are equipped with a clutch structure, so that the driven shaft has a first state of rotating with the driving shaft and a second state of not rotating with the driving shaft, and the driven shaft switches to the second state when the hose is tightened.

[0005] Furthermore, the clutch structure includes an elastic member and a friction member, the elastic member is sleeved on the driving shaft, the friction member is sleeved on the driving shaft and / or the driven shaft, and the elastic member presses the friction member against the driven shaft so that the driven shaft rotates with the driving shaft during the tightening of the hose.

[0006] Furthermore, the clutch structure also includes an adjusting nut, which is threadedly connected to the driving shaft, and the elastic member is limited between the adjusting nut and the friction member.

[0007] Furthermore, the friction member includes two friction discs and a friction block, the friction discs and the friction block are respectively annular, and the friction block is located between the two friction discs, and the friction block is made of rubber or silicone; the elastic member is a spring.

[0008] Furthermore, one end of the driven shaft and one end of the driving shaft are plugged together so as to be relatively rotatable; and the driving shaft is fixed on the output shaft of the motor.

[0009] Furthermore, the driven shaft includes a connecting section and a driving section. The connecting section is rotatably connected to the machine base around its axis and cooperates with the driving shaft with the clutch structure. The driving section is fixed at one end of the connecting section away from the driving shaft and is used to be inserted into one end of the hose.

[0010] Furthermore, the driven shaft is partially inserted into one end of the hose rotatably connected to the locking nut; it also includes a limiting mechanism, which includes a limiting member and a sliding drive member. The limiting member can be slidably connected to the machine base along the axial direction of the driven shaft. The sliding drive member is installed on the limiting member and drives the limiting member to slide, so that the limiting member presses or releases the locking nut, and when the limiting member presses the locking nut, the hose is restricted from detaching from the driven shaft.

[0011] Furthermore, the limiting member includes a slider and a plurality of limiting wheels arranged on the slider, and the slider is slidably connected to the machine base; each limiting wheel is used to tighten or release the locking nut, and the axis of each limiting wheel is parallel to the axis of the driven shaft.

[0012] Furthermore, the sliding drive member is a cylinder, and a piston rod of the cylinder is connected to the limiting member.

[0013] Furthermore, it also includes a sensor for controlling the working state of the sliding drive member and / or the motor, the sensor is installed on the machine base and is used to sense the hose.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Since the rotating component of the utility model includes a driving shaft and a driven shaft for driving the hose to rotate, the driving shaft is driven to rotate by the motor, and the driven shaft can be rotatably arranged on the machine base around its axis, and the driven shaft and the driving shaft are located on the same axis; the driven shaft and the driving shaft are equipped with a clutch structure, so that the driven shaft has a first state of rotating with the driving shaft and a second state of not rotating with the driving shaft, and the driven shaft switches to the second state when the hose is completely tightened, so that the rotating component of the utility model has a clutch function, which can drive the hose to rotate when the hose needs to be tightened, and stop driving the hose to rotate when the hose is completely tightened, so that the hose will not be over-tightened, which is beneficial to protecting the valve body and the motor connected to the hose.

[0016] 2. The clutch structure preferably includes the elastic member and the friction member, and has the characteristics of simple structure, convenient assembly and low cost.

[0017] 3. The clutch structure also includes the adjusting nut, which can adjust the pre-tightening force of the elastic member on the friction member, thereby adjusting the friction force between the friction member and the driven shaft, and is conducive to extending the service life of the elastic member.

[0018] 4. The utility model also includes a limiting mechanism, which can limit the position of the hose during the tightening process of the hose to prevent the hose from being separated from the driven shaft. In particular, the limiting mechanism includes the limiting member and the sliding drive member, which realizes axial compression of the locking nut on the hose, has a simpler structure and a faster action.

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the hose tightening machine of the utility model is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structure diagram of the utility model. Figure 1 (Remove the engine cover, including the hose);

[0021] Figure 2 This is a three-dimensional structure diagram of the utility model. Figure 2 (including hose)

[0022] Figure 3 The utility model is a cross-sectional view Figure 1 (Remove the engine cover);

[0023] Figure 4 The utility model is a cross-sectional view Figure 2 (Remove the engine cover, including the hose);

[0024] Figure 5 yes Figure 4 A magnified schematic diagram of part A;

[0025] In the figure, 1, machine base, 11, guide rod, 2, motor, 3, rotating part, 31, driving shaft, 311, bump, 32, driven shaft, 321, connecting section, 322, driving section, 323, annular step surface, 324, groove, 4, elastic member, 5, friction member, 51, friction disc, 52, friction block, 6, adjusting nut, 7, limiting member, 71, slider, 72, limiting wheel, 8, cylinder, 9, sensor, 91, sensor slot, 10, hose, 101, locking nut, 102, threaded joint, 20, machine cover. DETAILED DESCRIPTION

[0026] In the present invention, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the orientation or position relationship indicated by "left", "right", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] In addition, in the description of the present invention, unless otherwise specified, "plurality" refers to two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-Figure 5As shown, a hose tightening machine of the utility model comprises a machine base 1, a motor 2, and a rotating part 3. The motor 2 is mounted on the machine base 1 and is used to drive the rotating part 3 to rotate. The rotating part 3 comprises a driving shaft 31 and a driven shaft 32 for driving the hose to rotate. The driving shaft 31 is driven to rotate by the motor 2. The driven shaft 32 is rotatably arranged on the machine base 1 around its axis, and the driven shaft 32 and the driving shaft 31 are located on the same axis. The driven shaft 32 and the driving shaft 31 are matched with a clutch structure, so that the driven shaft 32 has a first state of rotating with the driving shaft 31 and a second state of not rotating with the driving shaft 31. When the driven shaft 32 is in the first state, the driven shaft 32 can drive the hose to rotate so that the hose is tightened. When the driven shaft 32 is in the second state, the driven shaft 32 stops rotating so that the hose does not rotate with the driving shaft 31. The driven shaft 32 automatically switches to the second state when the hose is tightened. The driven shaft 32 drives the hose to move actively in the following manner: the driven shaft 32 is partially inserted into one end of the hose 10 which is rotatably connected with the locking nut 101 , and supports one end of the hose 10 .

[0029] As a preferred structure, the clutch structure includes an elastic member 4 and a friction member 5. The elastic member 4 is sleeved on the driving shaft 31, and the friction member 5 is sleeved on the driving shaft 31 and / or the driven shaft 32. The elastic member 4 presses the friction member 5 against the driven shaft 32, so that the driven shaft 32 rotates with the driving shaft 31 during the tightening of the hose. Specifically, the driven shaft 32 is provided with a circle of annular step surface 323 facing the friction member 5, and the elastic member 4 presses the friction member 5 against the annular step surface 323. The elastic member 4 is specifically a spring, but is not limited thereto.

[0030] The clutch structure further includes an adjusting nut 6, which is threadedly connected to the driving shaft 31, and the elastic member 4 is limited between the adjusting nut 6 and the friction member 5. Therefore, by rotating the adjusting nut 6, the position of the elastic member 4 on the driving shaft can be adjusted, so that the pre-tightening force of the elastic member 4 on the friction member 5 can be adjusted, and then the friction force between the friction member 5 and the driven shaft 32 can be adjusted, and when the elastic capacity of the elastic member 4 is reduced, by rotating the adjusting nut 6 in the direction of compressing the elastic member 4, the pre-tightening of the elastic member 4 on the friction member 5 can be increased, which is conducive to extending the service life of the elastic member 4.

[0031] In this embodiment, the friction member 5 includes two friction discs 51 and a friction block 52. The friction discs 51 and the friction block 52 are respectively annular, and the friction block 52 is located between the two friction discs 51. The friction block 52 is made of rubber or silicone. The elastic member 4 is preferably a spring, but is not limited thereto.

[0032] In this embodiment, one end of the driven shaft 32 and one end of the driving shaft 31 are plugged together so as to be relatively rotatable; the driving shaft 31 is fixed on the output shaft of the motor 2. Specifically, a groove 324 is provided on the end surface of one end of the driven shaft 32, and a protrusion 311 is provided on the end surface of one end of the driving shaft 31. The protrusion 311 is inserted into the groove 324, and the two are in a clearance fit. In this way, on the one hand, the coaxiality of the driving shaft 31 and the driven shaft 32 can be ensured, and on the other hand, the gap between the adjacent ends of the driving shaft 31 and the driven shaft 32 is made smaller, so that the friction member 5 will not fall off when it is at the junction of the driving shaft 31 and the driven shaft 32. The connection method between the driven shaft 32 and the driving shaft 31 is not limited to this.

[0033] The driven shaft 32 specifically includes a connecting section 321 and a driving section 322. The connecting section 321 is rotatably connected to the base 1 around its axis and cooperates with the driving shaft 31 with the above-mentioned clutch structure. The driving section 322 is fixed at one end of the connecting section 321 away from the driving shaft 31 and is used to be inserted into one end of the hose 10. The other end of the connecting section 321 is provided with the groove 324 and the annular step surface 323.

[0034] The utility model also includes a limiting mechanism for limiting the hose 10 from being separated from the driven shaft 32. The limiting mechanism includes a limiting member 7 and a sliding driving member, wherein the limiting member 7 can be slidably connected to the base 1 along the axial direction of the driven shaft 32, and the sliding driving member is installed on the limiting member 7 and drives the limiting member 7 to slide, so that the limiting member 7 presses or releases the locking nut 101 on the hose, and when the limiting member 7 presses the locking nut 101, the hose 10 is limited from being separated from the driven shaft 32.

[0035] In this embodiment, the limiting member 7 specifically includes a slider 71 and a plurality of limiting wheels 72 arranged on the slider 71. The slider 71 is slidably connected to the base 1. Specifically, a plurality of guide rods 11 distributed in parallel are arranged on the base 1. Each guide rod 11 is distributed along the sliding direction of the slider 71 and is movably penetrated through the slider 71. Each limiting wheel 72 is used to tighten or release the locking nut 101, and the axis of each limiting wheel 72 is parallel to the axis of the driven shaft 32. The number of limiting wheels 72 is specifically two, but not limited to this. The two limiting wheels 72 are located on opposite sides of the locking nut 101. The sliding drive member is a cylinder 8, and the piston rod of the cylinder 8 is connected to the slider 71 of the limiting member 7.

[0036] The utility model further includes a sensor 9 for controlling the working state of the sliding drive member (i.e., the cylinder 8), which is installed on the machine base 1 and used to sense the hose. Specifically, the sensor 9 is fixed at the ends of the plurality of guide rods 11, and the sensor 9 is provided with a U-shaped sensing slot 91. In other embodiments, in addition to controlling the working state of the cylinder 8, the sensor 9 can also be used to control the working state of the motor 2.

[0037] The utility model also includes a machine cover 20, which is connected to the machine base 1 and contains the motor 2, the cylinder 8, etc. The machine base 1 includes a bottom plate, two left and right side plates connected to the bottom plate, and a bracket. The driven shaft 32 is rotatably connected to the side plate on the right, the bracket is fixed to the left side of the right side plate, and the motor 2 is installed on the bracket in a horizontal position. The guide rod 11 is fixed to the right side of the right side plate.

[0038] The utility model is a hose tightening machine, and its working principle is as follows:

[0039] Manually put one end of the hose 10 to be tightened outside the driving section 322 of the driven shaft 32, and make the hose 10 enter the sensing slot 91 of the sensor 9. The sensor 9 senses the hose 10 and sends a signal to the control board connected to the cylinder 8, so that the control board starts the cylinder 8, and the piston rod of the cylinder 8 contracts, driving the slider 71 to slide to the left, so that the two limit wheels 72 respectively press the locking nut 101 at one end of the hose, thereby limiting one end of the hose 10 from being separated from the driven shaft 32. The driving shaft 31 rotates under the drive of the motor 2, and drives the driven shaft 32 to rotate through the elastic member 4 and the friction member 5, so that the driven shaft 32 drives the hose 10 to rotate, and the threaded joint 102 at the other end of the hose is screwed into the water inlet or outlet of the valve body (the valve body can be manually held), so that the hose 10 is tightened. When the hose 10 is tightened, the friction force of the friction member 5 on the driven shaft 32 is less than the force of tightening the hose 10, so that the driven shaft 32 cannot continue to rotate with the driving shaft 31, and thus the driven shaft 32 and the hose 10 stop rotating, so that the hose will not be over-tightened in the utility model, which is beneficial to protecting the valve body and the motor 2. Since the locking nut 101 and the hose 10 can rotate relative to each other, during the tightening process of the hose 10, the locking nut 101 will not rotate with the hose 10 after being pressed by the limiting wheel 72.

[0040] After the hose 10 is tightened, the hose 10 leaves the sensing slot 91 of the sensor 9. The sensor 9 cannot sense the hose 10 and sends a signal to the control board connected to the cylinder 8, so that the control board starts the cylinder 8. The piston rod of the cylinder 8 extends, driving the slider 71 to slide rightward, so that the two limiting wheels 72 release the locking nuts 101 at one end of the hose 10 respectively, so that the tightened hose 10 can be removed.

[0041] The utility model provides a hose tightening machine, wherein the rotating component 3 has a clutch function, which can drive the hose to rotate when the hose needs to be tightened, and stop driving the hose to rotate when the hose is completely tightened, so that the hose will not be over-tightened, which is beneficial to protecting the valve body and the motor 2. In addition, the utility model can ensure the continuity and balance of production, and the motor 2 does not need to be started repeatedly, which greatly shortens the processing time and improves the production efficiency.

[0042] The utility model provides a hose tightening machine, and the uninvolved parts are the same as those in the prior art or can be implemented by adopting the prior art.

[0043] The above embodiments are only used to further illustrate a hose tightening machine of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. A hose tightening machine, comprising a machine base, a motor, and a rotating part, wherein the motor is mounted on the machine base; characterized in that: The rotating component includes a driving shaft and a driven shaft for driving the hose to rotate. The driving shaft is driven to rotate by the motor, and the driven shaft is rotatably arranged on the base around its axis, and the driven shaft and the driving shaft are located on the same axis. The driven shaft and the driving shaft are equipped with a clutch structure, so that the driven shaft has a first state in which it rotates with the driving shaft and a second state in which it does not rotate with the driving shaft, and the driven shaft switches to the second state when the hose is tightened.

2. The hose tightening machine according to claim 1, characterized in that: The clutch structure includes an elastic member and a friction member, wherein the elastic member is sleeved on the driving shaft, and the friction member is sleeved on the driving shaft and / or the driven shaft, and the elastic member presses the friction member against the driven shaft so that the driven shaft rotates with the driving shaft during the tightening of the hose.

3. The hose tightening machine according to claim 2, characterized in that: The clutch structure further comprises an adjusting nut, which is threadedly connected to the driving shaft, and the elastic member is limited between the adjusting nut and the friction member.

4. The hose tightening machine according to claim 2, characterized in that: The friction member comprises two friction discs and a friction block, the friction discs and the friction block are respectively annular, and the friction block is located between the two friction discs, and the friction block is made of rubber or silicone; the elastic member is a spring.

5. The hose tightening machine according to claim 1, characterized in that: One end of the driven shaft and one end of the driving shaft are plugged together so as to be relatively rotatable; the driving shaft is fixed on the output shaft of the motor.

6. The hose tightening machine according to claim 1, characterized in that: The driven shaft includes a connecting section and a driving section. The connecting section is rotatably connected to the machine base around its axis and cooperates with the driving shaft with the clutch structure. The driving section is fixed at one end of the connecting section away from the driving shaft and is used to be inserted into one end of the hose.

7. The hose tightening machine according to claim 1, characterized in that: The driven shaft is partially inserted into one end of the hose rotatably connected to the locking nut; it also includes a limiting mechanism, which includes a limiting member and a sliding drive member. The limiting member can be slidably connected to the machine base along the axial direction of the driven shaft. The sliding drive member is installed on the limiting member and drives the limiting member to slide, so that the limiting member presses or releases the locking nut, and when the limiting member presses the locking nut, the hose is restricted from being separated from the driven shaft.

8. The hose tightening machine according to claim 7, characterized in that: The limiting member includes a slider and a plurality of limiting wheels arranged on the slider, the slider is slidably connected to the machine base; each limiting wheel is used to tighten or release the locking nut, and the axis of each limiting wheel is parallel to the axis of the driven shaft.

9. The hose tightening machine according to claim 7, characterized in that: The sliding driving member is a cylinder, and the piston rod of the cylinder is connected to the limiting member.

10. The hose tightening machine according to any one of claims 7-8, characterized in that: It also includes a sensor for controlling the working state of the sliding drive member and / or the motor. The sensor is installed on the machine base and is used for sensing the hose.

Images