Automobile sheet metal repair pneumatic supporting and pulling device

Abstract

The application belongs to the technical field of automobile repair equipment, and specifically relates to an automobile sheet metal repair pneumatic supporting and pulling device, which comprises a machine body, a handle arranged at the bottom of the machine body, and an air source connector arranged at the bottom of the handle; a fixed sleeve is arranged at the right side of the machine body, an extension sleeve is connected to the right side of the fixed sleeve, a rear end connector is arranged at the left side of the machine body, and a fixing member is arranged at one end of the fixed sleeve and the rear end connector close to the machine body, the scheme is an auxiliary tool for automobile repair, the extension operation is completed through a pneumatic cylinder, the air source is used as power, the structure is light, firm, flexible and reliable, one person can carry and operate the device, the air source is used as a power source, the leakage problem of a hydraulic cylinder is avoided, the working place can be kept clean, corresponding additional members are connected to the outer end of the extension pipe, quick repair work can be realized, one machine can be used for multiple purposes by matching different additional members, and the device is more practical and worry-free.

Description

Technical Field

[0001] This invention relates to the field of automotive repair equipment technology, specifically to a pneumatic support device for automotive sheet metal repair. Background Technology

[0002] Automotive sheet metal work is a technical method of car repair, which is generally used to repair the car body after a collision. There are various repair methods, including shaping the car body sheet metal, stretching and straightening, stress-relieving welding, as well as the assembly and adjustment of car body accessories.

[0003] However, traditional manual hydraulic cylinders are time-consuming and laborious, and their large size makes them difficult to operate. Their excessive weight can also cause fatigue. Since car repair is a comprehensive issue, vehicles often require not only sheet metal repair but also other repairs after an accident. Traditional repair tools are not versatile enough to meet all needs, and purchasing them separately would undoubtedly increase additional costs. Therefore, a comprehensive repair tool that can be used for multiple purposes is particularly important.

[0004] Meanwhile, repair work is often tedious and monotonous, and it is not uncommon for repair workers to drop tools when using them. Effective protection of internal pneumatic components and timely detection of air leaks are also factors we considered. Based on the above reasons, we proposed the pneumatic support device for automotive sheet metal repair. Summary of the Invention

[0005] The purpose of this invention is to provide a pneumatic support device for automotive sheet metal repair, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic support device for automotive sheet metal repair, comprising a body, a handle at the bottom of the body, and an air source connector at the bottom of the handle;

[0007] A fixed sleeve is installed on the right side of the machine body, and a telescopic sleeve is connected to the right side of the fixed sleeve. A rear end connector is provided on the left side of the machine body. Both the rear end connector and the fixed sleeve near the machine body are provided with fixing parts.

[0008] The inner cavity of the fuselage has an installation cavity, and each of the four corners of the installation cavity has a sliding groove. The lower part of the front and rear side walls of the installation cavity has a horizontal airflow groove, and each of the front and rear side walls of the installation cavity has a detection hole.

[0009] The inner shell is fitted inside the body. The four corners of the inner shell are movably inserted into the sliding grooves. The inner shell slides inward into the mounting cavity. The outer side wall of the inner shell is respectively in contact with the detection hole and the airflow groove. A cylinder is provided in the inner cavity of the inner shell.

[0010] The inner cavity of the inner shell is provided with buffer pads near the top and bottom of the cylinder. The side wall of the mounting cavity is provided with a sealing layer on the side near the inner shell. The airflow groove is provided with guide holes at equal intervals. The guide holes are T-shaped whistles and all guide holes penetrate downward through the bottom of the machine body.

[0011] Preferably, sealing plates are provided at both the left and right ends of the machine body, the fixing member is in close contact with the sealing plate, and screw holes are provided at each of the four corners. The fixing member is fixedly connected to the sealing plate and the machine body by bolts.

[0012] Preferably, a base is installed on the left side of the rear connector, and an accessory is installed on the right side of the telescopic sleeve. The accessory includes a first connecting rod, a second connecting rod, a third connecting rod, a connecting sleeve, an adapter, an outer ring connector, a plunger head, and a pear-shaped clamp.

[0013] Preferably, the detection holes on either the front or rear sidewall include three groups: left, middle, and right, and each group includes two detection holes, one above the other. Each detection hole is equipped with a pressure sensor. A buzzer is located in the middle of the rear side of the body. The buzzer is embedded in the sidewall of the body and fixed to the body by screws. The buzzer is electrically connected to the pressure sensor.

[0014] Preferably, the inner shell has cylinder drive ports on both the left and right sides, the cylinder drive ports facing inward and corresponding to the cylinder, and the cylinder and the air source connector are interconnected.

[0015] Preferably, the buffer pad is a wear-resistant rubber pad, the inner shell has a filling cavity on its side wall, and the buffer pad is embedded in the filling cavity. The filling cavity is distributed around the cylinder, and the filling cavity is filled with filling adhesive.

[0016] Preferably, each of the inner cavities of the flow guide hole is provided with a flow guide fin on the side near the inner shell, and each of the flow guide fins consists of three fins arranged in parallel vertically, and each flow guide fin is a heat dissipation fin.

[0017] Preferably, a vibrating spring is provided in the middle of the inner cavity of the guide hole, and the vibrating spring is inclined at 15 degrees toward the guide fin.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1) This solution is an auxiliary tool for automobile repair. It uses a cylinder to complete the telescopic operation, and uses air as a power source. The structure is lightweight, sturdy, flexible and reliable, and can be carried and operated by one person. Using air as a power source also avoids the oil leakage problem of hydraulic cylinders and can keep the work site clean.

[0020] 2) The cylinder can perform both push and pull operations, with a push / pull force of up to 5t, which can meet the pulling force requirements of all daily sheet metal repairs; by connecting the corresponding attachments to the outer end of the telescopic tube, quick repair work can be achieved. By matching different attachments, one machine can be used for multiple purposes, making it more practical and worry-free.

[0021] 3) By adding an inner shell inside the body, the internal pneumatic components can be effectively protected in case of a drop, extending their service life. The inner shell and the body adopt a flexible installation method, which can be directly inserted into the installation cavity. The sliding groove and the four corners of the inner shell correspond to each other, making the sliding smoother. After installation, it can be sealed by the sealing plates on both sides, making maintenance very convenient.

[0022] 4) Two types of air leakage detection functions are set inside the body. One is that when gas diffuses into the detection hole, the original air pressure in the detection hole increases, and the air pressure sensor triggers the buzzer to sound an alarm to provide a warning.

[0023] Secondly, the gas can be discharged downward through the guide hole. The swirling airflow and the vibrating spring vibrate rapidly and frequently, creating an audible sound. By listening to the location of the sound from the guide hole, the approximate location of the leak can be determined, which is very convenient and efficient. Attached Figure Description

[0024] Figure 1 This is the front view of the present invention;

[0025] Figure 2 This is a schematic diagram of the attachments for the present invention;

[0026] Figure 3 This is a schematic diagram of the installation of the first additional component of the present invention;

[0027] Figure 4 This is a schematic diagram of the installation of the second additional component of the present invention;

[0028] Figure 5 This is a schematic diagram of the installation of the fuselage and fixing components of the present invention;

[0029] Figure 6 This is a side view of the fuselage of the present invention;

[0030] Figure 7 This is a partial enlarged view of the fuselage of the present invention;

[0031] Figure 8 This is a cross-sectional view of the fuselage of the present invention;

[0032] Figure 9 This is a cross-sectional view of the inner shell of the present invention;

[0033] Figure 10 This is a schematic diagram of the flow guide hole of the present invention.

[0034] In the diagram: 1. Body, 2. Handle, 3. Air source connector, 4. Fixing sleeve;

[0035] 5. Telescopic sleeve; 51. First connecting rod; 52. Second connecting rod; 53. Third connecting rod; 54. Connecting sleeve; 55. Adapter; 56. Outer ring connector; 57. Piston head; 58. Pear-shaped clamp.

[0036] 6 Rear end connector, 7 Base, 8 Fixing component, 9 Sealing plate, 10 Mounting cavity, 11 Sliding groove, 12 Airflow groove, 13 Detection hole, 14 Pressure sensor;

[0037] 15. Flow guide hole; 151. Flow guide fin; 152. Vibration spring;

[0038] 16 Inner shell, 161 Cylinder, 162 Buffer pad, 163 Filling cavity, 164 Cylinder transmission port;

[0039] 17. Sealing layer; 18. Buzzer. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Example:

[0043] Please see Figure 1-10 The present invention provides a technical solution for a pneumatic support device for automotive sheet metal repair: including a body 1, a handle 2 at the bottom of the body 1, and an air source connector 3 at the bottom of the handle 2;

[0044] Furthermore, a fixed sleeve 4 is installed on the right side of the body 1, and a telescopic sleeve 5 is connected to the right side of the fixed sleeve 4. A rear end connector 6 is provided on the left side of the body 1, and a fixing part 8 is provided on the end of the rear end connector 6 and the fixed sleeve 4 near the body 1.

[0045] Furthermore, sealing plates 9 are provided at both the left and right ends of the body 1, and the fasteners 8 fit together with the sealing plates 9. Screw holes are provided at the four corners. The fasteners 8 are fixedly connected to the sealing plates 9 and the body 1 by bolts.

[0046] Furthermore, the inner cavity of the body 1 is provided with an installation cavity 10, and each of the four corners of the installation cavity 10 is provided with a sliding groove 11. The lower part of the front and rear side walls of the installation cavity 10 is provided with an airflow groove 12, and each of the front and rear side walls of the installation cavity 10 is provided with a detection hole 13.

[0047] Furthermore, the detection holes 13 on either the front or rear side wall include three groups: left, middle, and right, and each group includes two holes at the top and bottom. Each detection hole 13 is equipped with a pressure sensor 14. A buzzer 18 is installed in the middle of the rear side of the body 1. The buzzer 18 is embedded in the side wall of the body 1 and is fixed to the body 1 by screws. The buzzer 18 is electrically connected to the pressure sensor 14.

[0048] Furthermore, an inner shell 16 is fitted inside the body 1, and the four corners of the inner shell 16 are respectively movably inserted into the sliding groove 11. The inner shell 16 slides inward and is inserted into the mounting cavity 10.

[0049] Furthermore, the outer side wall of the inner shell 16 is respectively attached to the detection hole 13 and the airflow groove 12. A cylinder 161 is provided in the inner cavity of the inner shell 16. Cylinder transmission ports 164 are opened on both the left and right sides of the inner shell 16, and the cylinder transmission ports 164 are inwardly aligned with the cylinder 161.

[0050] Furthermore, buffer pads 162 are provided in the inner cavity of the inner shell 16 near the top and bottom of the cylinder 161. The buffer pads 162 are wear-resistant rubber pads. The side wall of the inner shell 16 has a filling cavity 163, and the buffer pads 162 are embedded in the filling cavity 163. The filling cavity 163 is distributed around the cylinder 161, and the filling cavity 161 is filled with filling adhesive.

[0051] Furthermore, a sealing layer 17 is provided on the side wall of the mounting cavity 10 near the inner shell 16, and guide holes 15 are provided at equal intervals in the airflow groove 12. The guide holes 15 are T-shaped whistles, and the guide holes 15 all penetrate downward through the bottom of the body 1.

[0052] Furthermore, each of the inner cavities of the flow guide hole 15 is provided with a flow guide fin 151 on the side near the inner shell 16. Each flow guide fin 151 consists of three parallel fins arranged vertically. Each flow guide fin 151 is a heat dissipation fin. A vibration spring 152 is provided in the middle of the inner cavity of the flow guide hole 15. The vibration spring 152 is tilted at 15 degrees toward the flow guide fin 151.

[0053] Furthermore, a base 7 is installed on the left side of the rear connector 6, and an accessory is installed on the right side of the telescopic sleeve 5. The accessory includes a first connecting rod 51, a second connecting rod 52, a third connecting rod 53, a connecting sleeve 54, an adapter 55, an outer ring connector 56, a plunger head 57, and a pear-shaped clamp 58.

[0054] Furthermore, this solution is an auxiliary tool for automobile repair. A start switch is provided on the handle 2 to start and adjust the cylinder 161 for operation. An air source connector 3 is provided at the bottom of the handle 2. The air source connector is connected to the air intake pipe. The other end of the air intake pipe is an air supply device, which is generally an air pump or a similar alternative. The air source provided by the air supply device should be dry, clean and uncontaminated to prevent damage to the cylinder 161.

[0055] Appropriate accessories should be selected before use. Figure 1 The image shown is an overall front view of fuselage 1. Figure 2 The attached accessories are shown, such as... Figure 3 and Figure 4 The image shown is a demonstration of the effect after some of the accessories are installed;

[0056] Furthermore, the first connecting rod 51, the second connecting rod 52, and the third connecting rod 53 in the additional components are extension sleeves. Different lengths of connecting rods can be selected according to actual maintenance needs. The first connecting rod 51 is a short sleeve, the second connecting rod 52 is a medium sleeve, and the third connecting rod 53 is a long sleeve. Additional components can also be connected to the right end of the three sleeves to cope with different maintenance situations. The rear end connector 6 and the telescopic sleeve 5 are respectively connected to the left and right ends of the cylinder 161, and the left and right extension and retraction are realized by the cylinder 161.

[0057] Specifically, such as Figure 3 As shown, a connecting sleeve 54 is installed at the right end of the telescopic sleeve 5. The connecting sleeve 54 is a basic component, and a first connecting rod 51 can be added to the right side of the connecting sleeve 54 (e.g., Figure 4 (As shown), any one of the following can also be added: second connecting rod 52, third connecting rod 53, outer ring joint 56, plunger head 57, pear-shaped clamp 58;

[0058] It should be noted that both the connecting sleeve 54 and the adapter 53 are basic sleeves, used as adapter reinforcements when adding components;

[0059] Similarly, additional components can also be installed on the left side of the rear connector 6, such as... Figure 3 As shown, a base 7 is added to the left side of the rear connector 6. The base 7 is a threaded groove seat used for repairing the suitcase. Figure 3The connecting sleeve 54 is a rubber sleeve, and the surface of the rubber sleeve can prevent scratches on the paint surface and cause damage. When in use, it is placed vertically, and the base 7 is placed on the bottom plate of the suitcase. When the cylinder 161 extends, it lifts the entire suitcase to form a temporary support structure, which facilitates quick inspection and maintenance.

[0060] Furthermore, Figure 4 The rear connector 6 shown is equipped with an extension attachment, the same as the telescopic sleeve 5, but... Figure 4 The connecting sleeve 54 shown is a metal sleeve, which is more robust. For example, when pulling sheet metal parts, first select a suitable connecting rod, and then install a pear-shaped clamp 58 on the outer end of the connecting rod. Hang an iron chain inside the pear-shaped clamp 58 and use the power of the cylinder 161 to pull the sheet metal parts. After adding the outer ring joint 56 and the plunger head 57, it can be used for repairs in confined spaces and for parts with large deformations, which is very time-saving and labor-saving, and realizes multiple uses of one machine.

[0061] Furthermore, such as Figure 5 As shown, the body 1 adopts a semi-enclosed shell, and sealing plates 9 are provided at both the left and right ends. The sealing plates 9 can seal the left and right ends of the body 1 to form a fully enclosed installation.

[0062] The rear connector 6 and the fixed sleeve 4 are both equipped with a fastener 8 at the end near the body 1. The fastener 8 abuts against the sealing plate 9. Screw holes are opened at the four corners corresponding to the sealing plate 9 and the body 1. The fastener 8 is locked and fixed to the sealing plate 9 and the body 1 by bolts, which is very convenient for installation and disassembly.

[0063] Furthermore, the cylinder 161 is a closed installation, and an inner shell 16 covers the outside of the cylinder 161. The left and right ends of the inner shell 16 are reserved with cylinder transmission ports 164 for docking with the telescopic sleeve 5 and other accessories. Buffer pads 162 are symmetrically arranged on the upper and lower side walls of the inner shell 16. The buffer pads 162 are wear-resistant rubber pads, which can buffer and absorb the vibration amplitude when the cylinder 161 is working. At the same time, the surrounding buffer pads 162 can also clamp the internal cylinder 161, making its installation more secure.

[0064] Furthermore, the inner wall cavity of the inner shell 16 has a filling cavity 163, which is filled with filler glue. The filler glue is epoxy resin bottom filler glue, which has good thermal conductivity and thermosetting properties. The filling cavity 163 can reduce the overall weight, making the inner shell 16 lighter. The filler glue can not only fill the gaps, but also restrict the movement of the buffer pad 162 and prevent the buffer pad 162 from deviating. The filler glue itself has good thermal conductivity. After the cylinder 161 works, it will generate a lot of heat in a short time. This heat can be absorbed by the filling cavity 163 and the inner shell 16 and conducted to the body 1, and then dissipated from the body 1.

[0065] Furthermore, the inner shell 16 and the body 1 adopt a flexible installation method, which can be directly inserted into the mounting cavity 10. The sliding groove 11 and the four corners of the inner shell 16 correspond to each other, making the sliding smoother. After installation, it can be sealed by the sealing plates 9 on both sides, which is very convenient for maintenance.

[0066] The inner shell 16 provides better protection for the cylinder 161. Accidents are inevitable during use, such as slipping from hand and falling to the ground, which can easily damage the internal pneumatic components and cause unnecessary losses. By adding an inner shell 16 inside the body 1, the internal pneumatic components can be effectively protected in case of a fall, and the service life can be extended.

[0067] Meanwhile, two leakage detection functions are set inside the body 1. One is to detect leakage through the air pressure sensor 14, and the other is to detect leakage by emitting a whistle through the disturbance of airflow.

[0068] Furthermore, when both cylinder 161 and inner shell 16 leak, the gas diffuses into the mounting cavity 10. The detection holes 13 include three groups: left, middle, and right, arranged laterally along the inner shell 16. When the gas diffuses into the detection holes 13, the original air pressure in the detection holes 13 increases, and the detection diaphragm of the pressure sensor 14 deforms, driving the pin. At the same time, the resistance of the resistor will change. The change in resistance triggers the preset value of the pressure sensor 14. The pressure sensor 14 is electrically connected to the buzzer 18 and triggers the buzzer 18 to sound an alarm. At this time, it is necessary to check the machine body 1, cylinder 161, and other related components in a timely manner to find problems and maintain them.

[0069] Similarly, when both cylinder 161 and inner shell 16 leak, the gas diffuses into the mounting cavity 10, including the airflow groove 12. The airflow groove 12 has uniformly arranged guide holes 15, which are also arranged laterally along the inner shell 16. The gas can be discharged downward through the guide holes 15. When the gas passes through the guide holes 15, it emits a whistle sound by using the principle of whistle sound generation, thereby achieving the purpose of reminder.

[0070] Furthermore, such as Figure 10As shown, a guide fin 151 is provided on the side of the guide hole 15 near the mounting cavity 10. When gas flows through the guide fin 151 into the guide hole 15, the diameter that can pass through becomes rapidly narrowed. Under the mutual compression of air pressure, the gas is accelerated and continues to flow inward, reaching the inner cavity of the guide hole 15. At this time, the airflow blows the vibrating spring 152 and forms a vortex backflow after passing the vibrating spring 152, and blows the vibrating spring 152 in the opposite direction again, and is discharged to the outside of the body 1 through the bottom of the guide hole 15. The swirling airflow and the vibrating spring 152 vibrate rapidly and frequently. This vibration causes air molecules to quickly gather and disperse, forming an audible sound. By listening to the sound, a physical method of air leakage detection and warning can be performed. By listening to the location of the sound from the guide hole 15, the approximate location of the air leak can be determined, which is very convenient and efficient.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic support device for automotive sheet metal repair, comprising a body (1), characterized in that, The bottom of the body (1) is provided with a handle (2), and the bottom of the handle (2) is provided with an air source connector (3). A fixed sleeve (4) is installed on the right side of the body (1), and a telescopic sleeve (5) is connected to the right side of the fixed sleeve (4). A rear end connector (6) is provided on the left side of the body (1), and a fixing part (8) is provided on the end of the rear end connector (6) and the fixed sleeve (4) near the body (1). The inner cavity of the body (1) is provided with an installation cavity (10), and each of the four corners of the installation cavity (10) is provided with a sliding groove (11). The lower part of the front and rear side walls of the installation cavity (10) is provided with an airflow groove (12) in the horizontal direction. The front and rear side walls of the installation cavity (10) are provided with a detection hole (13). The inner shell (16) is fitted inside the body (1). The four corners of the inner shell (16) are movably inserted into the sliding groove (11). The inner shell (16) slides inward into the mounting cavity (10). The outer side wall of the inner shell (16) is respectively in contact with the detection hole (13) and the airflow groove (12). A cylinder (161) is provided in the inner cavity of the inner shell (16). The inner cavity of the inner shell (16) is provided with buffer pads (162) at the top and bottom of the cylinder (161). The side wall of the mounting cavity (10) is provided with a sealing layer (17) on the side of the inner shell (16). The airflow groove (12) is provided with guide holes (15) at equal intervals. The guide holes (15) are T-shaped whistles and all guide holes (15) penetrate downward through the bottom of the body (1). A vibrating spring (152) is provided in the middle of the inner cavity of the guide hole (15). The inner shell (16) has cylinder drive ports (164) on both the left and right sides. The cylinder drive ports (164) are inwardly aligned with the cylinder (161). The cylinder (161) is connected to the air source connector (3). The buffer pad (162) is a wear-resistant rubber pad. The inner shell (16) has a filling cavity (163) on its side wall. The buffer pad (162) is embedded in the filling cavity (163). The filling cavity (163) is distributed around the cylinder (161). The filling cavity (163) is filled with filling adhesive. The detection holes (13) on either the front or rear side wall include three groups: left, middle, and right, and each group includes two detection holes (13) at the top and bottom. Each detection hole (13) is equipped with a pressure sensor (14). A buzzer (18) is provided in the middle of the rear side of the body (1). The buzzer (18) is embedded in the side wall of the body (1) and is fixed to the body (1) by screws. The buzzer (18) is electrically connected to the pressure sensor (14).

2. The pneumatic support device for automotive sheet metal repair according to claim 1, characterized in that: Sealing plates (9) are provided at both the left and right ends of the body (1). The fixing member (8) fits into the sealing plate (9) and screw holes are provided at the four corners. The fixing member (8) is fixedly connected to the sealing plate (9) and the body (1) by bolts.

3. The pneumatic support device for automotive sheet metal repair according to claim 1, characterized in that: A base (7) is installed on the left side of the rear connector (6), and an accessory is installed on the right side of the telescopic sleeve (5). The accessory includes a first connecting rod (51), a second connecting rod (52), a third connecting rod (53), a connecting sleeve (54), an adapter (55), an outer ring connector (56), a plunger head (57), and a pear-shaped clamp (58).

4. The pneumatic support device for automotive sheet metal repair according to claim 1, characterized in that: Each of the inner cavities of the flow guide hole (15) is provided with a flow guide fin (151) on the side near the inner shell (16). Each of the flow guide fins (151) consists of three parallel fins arranged vertically. Each flow guide fin (151) is a heat dissipation fin. The vibration spring (152) is tilted at 15 degrees toward the flow guide fin (151).

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