Automobile seat headrest coating device

Abstract

The utility model relates to the field of seat headrest manufacturing, in particular to an automobile seat headrest wrapping device which comprises a supporting frame, reinforcing cloth, a reinforcing cloth fixing seat and a headrest tool, the reinforcing cloth fixing seat fixes the reinforcing cloth and is fixed on the supporting frame, the headrest tool is installed above the reinforcing cloth fixing seat, and the headrest tool is fixed on the reinforcing cloth fixing seat. The device further comprises an air source, a valve, a vacuum generator, a first pipeline piece, a second pipeline piece and a third pipeline piece, an air inlet, an air outlet and a vacuum opening are formed in the vacuum generator, the headrest tool is connected with the vacuum opening through the first pipeline piece, the air inlet is connected with the valve through the second pipeline piece, and the air source is connected with the valve through the third pipeline piece. According to the scheme, the structure is simple, vacuum control is achieved by using a structure with fewer electronic devices, operation is easy, the number of the electronic devices is small, and the failure rate is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat headrest manufacturing, specifically relates to a car seat headrest coating device. BACKGROUND

[0002] The headrest of the car seat is installed on the top of the car seat and is used for the head to lean on. The car seat headrest mainly comprises an inner core of foam material, a pillowcase and two metal supporting rods connected to the bottom end of the inner core. The pillowcase is sleeved on the outer side of the inner core. When in use, the two metal supporting rods at the bottom end of the headrest are inserted into the top end of the seat. The headrest can protect and support the head of the driver.

[0003] The Chinese invention patent publication No. CN102529770A discloses an automatic coating device for the headrest of a car seat, which comprises a control box, an electromagnetic valve, a vacuum pump and other structures. The control box and the electromagnetic valve are connected by a circuit, and the control box and the vacuum pump are connected by a circuit. By controlling the control box, the control box controls the vacuum pump and the electromagnetic valve, so that the headrest foam is compressed by the vacuum method, and then the pillowcase is installed on the headrest with reduced volume.

[0004] In the prior art, the control of the vacuum depends on the electronic device structure of the control box and the electromagnetic valve. Many electronic devices are involved in the control box. The electronic devices are prone to damage after long-term use. The failure rate of the control box and the electromagnetic valve is high, and the maintenance is frequent during subsequent use.

[0005] Therefore, the key to solving the above problems is to adopt a structure that is simple in structure and uses fewer electronic devices to control the vacuum. UTILITY MODEL CONTENTS

[0006] The utility model intends to provide a car seat headrest coating device to provide a structure that is simple in structure and uses fewer electronic devices to control the vacuum.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a car seat headrest coating device, comprising a support frame, a reinforcing cloth, a reinforcing cloth fixing seat and a headrest tool. The reinforcing cloth fixing seat fixes the reinforcing cloth. The reinforcing cloth fixing seat is fixed on the support frame. The headrest tool is installed above the reinforcing cloth fixing seat. It also comprises an air source, a valve, a vacuum generator, a first pipe, a second pipe and a third pipe. The vacuum generator is provided with an air inlet, an exhaust port and a vacuum port. The headrest tool and the vacuum port are connected by the first pipe. The air inlet and the valve are connected by the second pipe. The air source and the valve are connected by the third pipe.

[0008] The principle and advantages of the present scheme are: the gas source is used to provide high-pressure gas. The first pipeline is used to connect the headrest tooling and the vacuum port, the second pipeline is used to connect the valve and the air inlet, and the third pipeline is used to connect the gas source and the valve. The valve is used to control whether the gas in the third pipeline flows to the second pipeline. The vacuum generator is a kind of vacuum component that generates negative pressure by using positive pressure gas. Through the vacuum generator, it is very easy and convenient to obtain negative pressure.

[0009] When the headrest is covered, the headrest inner core is placed on the headrest tooling, and then the headrest tooling and the headrest inner core are wrapped with reinforcing cloth. Then the valve is opened, the high-pressure gas in the gas source enters the second pipeline through the third pipeline and the valve, the gas enters the vacuum generator, the vacuum generator generates negative pressure at the vacuum port, and the negative pressure acts on the headrest tooling through the first pipeline, thereby vacuumizing the wrapped area on the inside of the reinforcing cloth, so that the inner core is compressed, and then the pillow cover is sleeved on the inner core with reduced volume.

[0010] After the pillow cover is sleeved, the valve is closed, the gas in the third pipeline cannot enter the second pipeline, and the air inlet of the vacuum generator has no high-pressure gas entering, so that the negative pressure of the vacuum port of the vacuum generator disappears, and the inner core gradually recovers the deformation to fill the pillow cover, thereby realizing the covering of the pillow cover on the inner core.

[0011] In summary, the control of the vacuum in the present application is realized by controlling whether the valve is opened, thereby controlling whether the vacuum generator is air-in, and whether the vacuum is generated. The valve and the vacuum generator are both mechanical parts, without the need to install control boxes and electromagnetic valves and other electronic devices, and without the need for electric control through the control box. Compared with the control box and the electromagnetic valve structure, the structure is simple, the cost is low, the failure rate is low, and the electric energy is saved.

[0012] Preferably, as an improvement, the headrest tooling is hollow inside, and the headrest tooling is provided with an air port. Thus, when vacuumizing, the first pipeline performs air extraction on the inside of the headrest tooling, and the headrest tooling performs air extraction on the inside wrapping space of the reinforcing cloth through the air port. In this way, the first pipeline does not directly extract air from the inside of the reinforcing cloth, and the headrest tooling plays a protective role for the reinforcing cloth, avoiding the damage of the reinforcing cloth caused by the large suction force directly extracted from the inside space of the reinforcing cloth. In addition, the headrest tooling is hollow inside, and the headrest tooling is provided with an air port, which can improve the speed of vacuumizing compared with the solid headrest tooling.

[0013] Preferably, as an improvement, the headrest tooling is provided with a jack. The jack is used for inserting the metal support rod on the headrest, and the headrest tooling has a better fixing and supporting effect on the headrest.

[0014] Preferably, as an improvement, a cylinder is arranged below the headrest tooling, the cylinder is vertically arranged, and a piston rod of the cylinder is fixedly connected to the bottom of the headrest tooling.

[0015] Therefore, when the pillowcase covers the inner core, the cylinder is started, the piston rod of the cylinder moves upward, the piston rod pushes the headrest tooling to move upward, the headrest tooling drives the headrest to move upward, so that the headrest is automatically separated from the reinforcing cloth.

[0016] Preferably, as an improvement, the first pipe member comprises a vertical guide rod, the guide rod is tubular, and the guide rod is made of metal and is vertically and slidably connected to the reinforcing cloth fixing seat.

[0017] Therefore, the guide rod in the application not only plays a guiding role in the vertical movement of the headrest tooling, but also serves as a channel for gas transmission because the guide rod is tubular.

[0018] Preferably, as an improvement, the second pipe member is a hose. Therefore, the second pipe member has a certain flexibility, can deform according to the lifting of the guide rod, and will not affect the lifting of the guide rod.

[0019] Preferably, as an improvement, the valve is a foot valve. The foot valve is controlled by stepping on it, so that both hands are released and the valve is not controlled, and the operation is more simple and convenient.

[0020] Preferably, as an improvement, the exhaust port is connected with a silencer. The silencer is used to play a silencing role on the exhaust port and reduce noise.

[0021] Preferably, as an improvement, a clamping unit for clamping the headrest is arranged above the headrest tooling.

[0022] In the prior art, after the headrest is covered, the headrest needs to be removed from the headrest tooling, and the metal support rod needs to be pulled out of the insertion hole, which is troublesome.

[0023] In the application, when the cylinder pushes the headrest tooling upward, the headrest moves upward to the clamping unit, the clamping unit clamps the headrest, so that when the headrest tooling moves downward, the headrest is at the clamping unit and will not move downward with the headrest tooling, so that the headrest and the headrest tooling are automatically separated.

[0024] Preferably, as an improvement, the clamping unit comprises two fixed blocks opposite to each other, a sliding rod is horizontally and slidably connected to each of the two fixed blocks, ends of the two sliding rods are opposite to each other, a roller is rotatably connected to the end of each of the two sliding rods, and a compression spring is connected between the sliding rod and the fixed block.

[0025] As a result, the headrest moves upward and enters between the two rollers. The rollers roll on the sides of the headrest. The friction between the rollers and the headrest is rolling friction, which is low, making it easier for the headrest to enter between the two rollers during the upward push of the cylinder. After the headrest enters between the two rollers, the sliding rod squeezes the compression spring, which exerts a reaction force on the sliding rod, causing the two rollers to automatically clamp the headrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of a car seat headrest covering device according to Example 1 (the reinforcement cloth is not shown in the figure).

[0027] Figure 2 This is a front view of a car seat headrest covering device according to Example 1.

[0028] Figure 3 This is a front view of a car seat headrest covering device according to Example 2. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The figure marks in the drawings of the specification include: support frame 1, reinforcement cloth fixing seat 2, headrest tooling 3, inner core 4, metal support rod 5, vacuum generator 6, guide rod 7, connecting pipe 8, second pipeline member 9, third pipeline member 10, valve 11, cylinder 12, air port 13, reinforcement cloth 14, fixing block 15, roller 16, sliding rod 17, compression spring 18, and clamping block 19.

[0031] Example 1

[0032] Basically as attached Figures 1-2 As shown: A car seat headrest covering device includes a support frame 1, a reinforcing cloth 14, a reinforcing cloth fixing seat 2 and a headrest tooling 3. The support frame 1 in this embodiment is a frame structure formed by welding or connecting multiple iron rods with bolts. The support frame 1 is used to support the entire device. The reinforcing cloth 14 is a cloth, the reinforcing cloth fixing seat 2 is an iron plate, and the reinforcing cloth fixing seat 2 is fixed to the support frame 1 by screws. Figure 2 As shown, the reinforcing cloth 14 is in the shape of a bag, and the bottom of the reinforcing cloth 14 is clamped between the reinforcing cloth fixing seat 2 and the support frame 1. The reinforcing cloth fixing seat 2 presses the bottom of the reinforcing cloth 14 onto the support frame 1, thereby fixing the bottom of the reinforcing cloth 14. The top of the reinforcing cloth 14 is provided with an opening, and the four sides of the reinforcing cloth 14 are closed. The headrest tooling 3 in this embodiment is used to support and fix the inner core 4 of the headrest. The headrest tooling 3 is made of plastic or foam material. The headrest tooling 3 is located above the reinforcing cloth fixing seat 2. The bottom of the headrest tooling 3 is closed, the interior of the headrest tooling 3 is hollow, and the top of the headrest tooling 3 is provided with an air vent 13. Two sockets are provided on the headrest tooling 3, and the two sockets are located on both sides of the air vent 13.

[0033] The automobile seat headrest covering device in the embodiment further comprises an air source (not shown in the figure, for example, a compressor or a high-pressure gas cylinder), a valve 11, a vacuum generator 6, a first pipe, a second pipe 9 and a third pipe 10. The vacuum generator 6 is of a conventional structure, and the vacuum generator 6 is provided with an air inlet, an air outlet and a vacuum port, and the air outlet is connected with a silencer. The headrest tool 3 in the embodiment is connected with the vacuum port through the first pipe, and the first pipe is used for connecting the headrest tool 3 and the vacuum port in communication. The first pipe in the embodiment comprises a vertical guide rod 7 and a horizontal connecting pipe 8. The guide rod 7 is tubular, and the guide rod 7 is made of metal. The reinforcing cloth fixing seat 2 is provided with a vertical rod hole, and the guide rod 7 passes through the rod hole to achieve vertical sliding connection on the reinforcing cloth fixing seat 2. The bottom of the guide rod 7 is closed, the top of the guide rod 7 and the inside of the headrest tool 3 are in communication, the top of the guide rod 7 and the headrest tool 3 are fixed (for example, bonded or fixed by screws), the bottom of the guide rod 7 is connected with the connecting pipe 8, and the connecting pipe 8 is connected with the vacuum port of the vacuum generator 6.

[0034] The valve 11 in the embodiment is a foot valve, which is used for controlling the communication and closing of the air path. The air inlet of the vacuum generator 6 is connected with the valve 11 through the second pipe 9, and the second pipe 9 is used for connecting the air inlet of the vacuum generator 6 and the air outlet of the valve 11. The second pipe 9 in the embodiment is a hose, and the length of the hose is relatively long. During the vertical sliding of the guide rod 7 and the vertical movement of the vacuum generator 6, the hose has sufficient length to adapt to the height change of the vacuum generator 6, and the second pipe 9 will not affect the lifting of the vacuum generator 6.

[0035] The air source and the air inlet end of the valve 11 in the embodiment are connected through the third pipe 10. The third pipe 10 can be a hose or a hard pipe. The third pipe 10 is used for connecting the air source and the valve 11.

[0036] The bottom of the reinforcing cloth fixing seat 2 in the embodiment is further provided with a gas cylinder 12, and the gas cylinder 12 is vertically arranged. The reinforcing cloth fixing seat 2 and the gas cylinder 12 can be fixed by bolts. The reinforcing cloth fixing seat 2 is provided with a hole for the piston rod of the gas cylinder 12 to pass through. The piston rod of the gas cylinder 12 is fixedly connected with the bottom of the headrest tool 3 (for example, fixed by screws). In this way, the vertical movement of the piston rod of the gas cylinder 12 can drive the vertical movement of the headrest tool 3.

[0037] The specific implementation process is as follows: in combination with Figure 1 When the headrest is covered, the headrest inner core 4 is placed on the headrest tool 3, the metal support rod 5 of the headrest inner core 4 is inserted into the insertion hole of the headrest tool 3, and the inner core 4 is pressed downward to make the inner core 4 abut against the top of the headrest tool 3. In combination with Figure 2The reinforcing cloth 14 is shown, and then pull the reinforcing cloth 14 upwards, so that the reinforcing cloth 14 is wrapped around the headrest tooling 3 and the headrest inner core 4, and the top of the reinforcing cloth 14 is moved above the inner core 4, and the top of the reinforcing cloth 14 is manually folded to seal the opening of the top of the reinforcing cloth 14. Then step on the valve 11, the valve 11 is opened, the high-pressure gas in the gas source enters the valve 11 through the third pipeline 10, and enters the second pipeline 9 through the valve 11, and the gas enters the vacuum generator 6, and the vacuum generator 6 generates negative pressure at the vacuum port, and the negative pressure acts on the headrest tooling 3 through the first pipeline, so that the inner side of the wrapping area of the reinforcing cloth 14 is vacuumized through the gas port 13 of the headrest tooling 3 and the internal cavity of the headrest tooling 3, so that the inner core 4 is compressed, the volume of the inner core 4 is reduced, and then the pillowcase is sleeved on the inner core 4 with reduced volume, and at this time the pillowcase is also sleeved on the outer side of the reinforcing sheet.

[0038] After the pillowcase is sleeved, the valve 11 is no longer stepped on, the valve 11 is automatically loosened and automatically closed, the gas in the third pipeline 10 cannot enter the second pipeline 9, and the air inlet of the vacuum generator 6 is not entered by the high-pressure gas, so that the negative pressure of the vacuum port of the vacuum generator 6 disappears, and the inner core 4 gradually recovers the deformation to fill the pillowcase. Then manually start the air cylinder 12, the piston rod of the air cylinder 12 moves upwards, thereby pushing the headrest tooling 3 and the headrest inner core 4 upwards, the headrest inner core 4 moves upwards, the headrest inner core 4 drives the pillowcase to move upwards, and the reinforcing cloth 14 cannot move upwards, the headrest inner core 4 comes out of the top opening of the reinforcing cloth 14, and the reinforcing cloth 14 is separated from the inner core 4, thereby completing the wrapping of the pillowcase on the inner core 4.

[0039] Embodiment 2

[0040] Combined Figure 3 As shown, the headrest tooling 3 of the embodiment is provided with a clamping unit for clamping the headrest. The clamping unit includes two fixed blocks 15, which can be fixed on the outer machine frame (not shown in the figure) by bolts or welding. The machine frame is welded on the support frame 1, and the two fixed blocks 15 are opposite to each other. A sliding rod 17 is transversely and slidingly connected to each of the two fixed blocks 15. Specifically, a sliding cavity is arranged in the fixed block 15, and the sliding rod 17 is transversely inserted into the sliding cavity. The ends of the two sliding rods 17 are opposite to each other, and a roller 16 is rotatably connected to the end of the sliding rod 17 through a pin shaft. The two rollers 16 are opposite to each other. A clamping block 19 is welded on the sliding rod 17. A compression spring 18 is connected between the clamping block 19 and the fixed block 15. The clamping block 19 is used to fix the end of the compression spring 18, and the compression spring 18 is sleeved on the sliding rod 17. In this embodiment, the distance between the two rollers 16 (the distance between the right side surface of the left roller 16 and the left side surface of the right roller 16) is slightly smaller than the width of the headrest inner core 4 (for example, less than 0.5 cm).

[0041] Thus, the air cylinder 12 pushes the headrest tool 3 and the coated headrest upwards. The headrest enters between the two rollers 16, the rollers 16 roll on the side of the headrest, the friction between the rollers 16 and the headrest is rolling friction, the friction is small, and the headrest is easy to enter between the two rollers 16. After the headrest enters between the two rollers 16, because the distance between the two rollers 16 is less than the width of the headrest inner core 4, the headrest extrudes the two rollers 16 to the two sides, the sliding rod 17 extrudes the compression spring 18, the compression spring 18 provides a reaction force to the sliding rod 17, so that the two rollers 16 automatically clamp the headrest. When the air cylinder 12 drives the headrest tool 3 to move downwards, the headrest is in the state of being clamped by the rollers 16, and the headrest will not move downwards with the headrest tool 3, so that the headrest and the headrest tool 3 are automatically separated, and the worker can directly take the coated headrest, so that the headrest and the headrest tool 3 do not need to be separated additionally, and the operation is simple and convenient.

[0042] The above is only an embodiment of the present application, and common technical solutions and / or characteristics in the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An automobile seat headrest covering device, comprising a support frame, a reinforcing cloth, a reinforcing cloth fixing seat and a headrest tool, the reinforcing cloth fixing seat fixes the reinforcing cloth, the reinforcing cloth fixing seat is fixed on the support frame, and the headrest tool is installed above the reinforcing cloth fixing seat, characterized in that: The headrest tool is internally hollow, and the headrest tool is provided with an air inlet. ​ 2. The automobile seat headrest covering device according to claim 1, characterized in that: The headrest tool is internally hollow, and the headrest tool is provided with an air inlet.

3. The automobile seat headrest covering device according to claim 2, characterized in that: The headrest tool is internally hollow, and the headrest tool is provided with an air inlet.

4. The device according to claim 1, wherein: The headrest tool is internally hollow, and the headrest tool is provided with an air inlet.

5. The device according to claim 4, wherein: The first pipeline piece comprises a vertical guide rod, the guide rod is tubular, and the guide rod is made of metal.

6. The device according to claim 5, wherein: The second pipeline piece is a hose.

7. The device according to claim 1, wherein: The valve is a foot valve.

8. The device according to claim 1, wherein: The exhaust port is connected with a silencer.

9. The device according to claim 4, wherein: The headrest tool is internally hollow, and the headrest tool is provided with an air inlet.

10. The device according to claim 9, wherein: The headrest tool is internally hollow, and the headrest tool is provided with an air inlet. The headrest tool is internally hollow, and the headrest tool is provided with an air inlet.

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