An automatic tire installation and tightening gun shaft sleeve automatic switching device

Abstract

This invention relates to the technical field of automated equipment, and more specifically, to an automatic switching device for a tire automatic installation and tightening gun shaft sleeve. The device includes an elastic adapter, a quick-change sleeve, and a sleeve quick-change mechanism. The quick-change sleeve is connected to the tightening gun shaft via the elastic adapter. During sleeve switching, the robot inserts the quick-change sleeve downwards into an empty clamp. The upper cover presses against the sliding sleeve, releasing the first steel ball, causing the quick-change sleeve to fall from the adapter body into the clamp. A drive device then detaches the quick-change sleeve from the adapter body. When installing a new quick-change sleeve, the robot moves the tightening gun shaft above the clamp containing the sleeve and then moves it downwards. The upper cover presses against the sliding sleeve and the first spring, allowing the connecting part to enter the cavity. The tightening gun shaft is then moved upwards, and under the action of the first spring, the sliding sleeve moves downwards, clamping the connecting part with the first steel ball. In this invention, after the elastic adapter is connected to the tightening gun shaft, only the quick-change sleeve needs to be replaced during switching, reducing costs and improving production efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of automated equipment, and more specifically, to an automatic switching device for tire installation and tightening gun shaft sleeve. Background Technology

[0002] With the advent of electric vehicles, car types have diversified, leading to a variety of tire nut specifications. Currently, tire installation in the automotive manufacturing industry has gradually shifted to automated robotic installation, replacing manual labor and significantly improving efficiency. However, the availability of multiple nut specifications renders automated equipment unsuitable. When a nut needs to be changed, the automated station must be stopped, and the sleeve manually replaced before the equipment can be restarted. Each manual sleeve replacement requires approximately 10 minutes of production line downtime, significantly impacting efficiency. Furthermore, frequent manual entry into the automated station increases safety risks.

[0003] Existing technology discloses an automatic sleeve changing device, including a tightening shaft, a non-standard extension rod, and a support. The tightening shaft is detachably connected to the upper part of the non-standard extension rod, and the non-standard extension rod is detachably connected to the support. The non-standard extension rod is equipped with sleeves of different specifications. The support includes a base plate, and a fixing plate is arranged parallel to the top of the base plate. The fixing plate is connected to the base plate through a first baffle. The fixing plate and the base plate have corresponding through holes, and a non-standard extension rod guide cylinder is fixed in the through hole. A limiting component is provided on the non-standard extension rod guide cylinder. In this solution, sleeve switching is achieved by simultaneously switching the non-standard extension rod and the sleeve, which has low production efficiency and requires additional non-standard extension rods, increasing costs. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic tire installation and tightening gun shaft sleeve switching device. The flexible adapter can be connected to quick-change sleeves of different specifications, which can be used for quick replacement and installation of sleeves of different specifications, thereby reducing production costs and improving production efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] An automatic tire mounting and tightening gun shaft sleeve switching device is provided, comprising an elastic adapter, a quick-change sleeve, and a sleeve quick-change mechanism. The elastic adapter includes an adapter body, a sliding sleeve, a first spring, and a first steel ball. The sliding sleeve is slidably fitted around the outer periphery of the adapter body. The two ends of the first spring are respectively connected to the adapter body and the sliding sleeve. The top of the adapter body is connected to the tightening gun shaft. The adapter body has an axially formed cavity and a first slot communicating with the cavity. The first steel ball is installed in the first slot, and the bottom of the sliding sleeve can engage with the first steel ball. The quick-change sleeve includes a connecting part, a switching part, and a mounting part connected sequentially. The connecting part is slidably connected to the cavity and can engage with the tightening gun shaft. The first steel ball is engaged; the quick-change sleeve mechanism includes a base, a switching body, and a top cover. The switching body is mounted on the base, and the top cover is mounted on the top of the switching body. The top cover can contact the sliding sleeve. The top cover has several first placement holes. The top of the switching body has several second placement holes corresponding to the first placement holes. A sleeve is slidably installed in the second placement hole. The top of the sleeve has several second slots for installing second steel balls. The switching part can engage with the second steel ball. A second spring is installed in the second placement hole. The two ends of the second spring are respectively connected to the bottom of the sleeve and the bottom of the second placement hole. A pull rod is connected to the bottom of the sleeve. The switching body also has a driving device, which is connected to the pull rod.

[0007] The automatic tire installation and tightening gun shaft sleeve automatic switching device of the present invention, in its natural state, has a first spring keeping the sliding sleeve pressing the first steel ball, and a second spring keeping the clamp in the raised position. In use, the quick-change sleeve on the tightening gun shaft must first be loosened. After moving the tightening gun shaft with the quick-change sleeve above the first placement hole of the sleeve quick-change mechanism, the quick-change sleeve is inserted downwards into the clamp. The second steel ball engages with the switching part, the upper cover presses against the sliding sleeve, causing the sliding sleeve to move upwards until the first steel ball falls off and the connecting part engages with the sliding sleeve. The quick-change sleeve detaches from the adapter body, and simultaneously the clamp clamps the quick-change sleeve. When changing the sleeve, the drive device moves the pull rod and the clamp downwards, causing the quick-change sleeve to detach from the adapter body, thus releasing the quick-change sleeve. At this time, the drive mechanism can drive the clamp to reset for the next quick-change sleeve to be gripped. When installing a new quick-change sleeve, the tightening gun shaft is moved above the clamp containing the new quick-change sleeve and then moved downwards. The upper cover squeezes the sliding sleeve upwards, and the first steel ball engages with the sliding sleeve. The connecting part enters the cavity. The tightening gun shaft is then moved upwards, and under the action of the first spring, the sliding sleeve moves downwards, releasing the first steel ball. The first steel ball clamps the connecting part, completing the gripping of the quick-change sleeve. It should be noted that quick-change sleeves can be designed in different specifications for quick replacement. In this invention, after the elastic adapter is connected to the tightening gun shaft, only the quick-change sleeve needs to be replaced during switching, reducing costs and improving production efficiency.

[0008] Furthermore, a wedge-shaped groove is provided at the bottom of the sliding sleeve, and the first steel ball can be engaged with the wedge-shaped groove.

[0009] Furthermore, the adapter body has a retaining ring at its bottom, which can abut against the sliding sleeve.

[0010] Furthermore, the outer wall of the connecting part is provided with a first arc-shaped structure, which can be engaged with the first steel ball.

[0011] Furthermore, the outer wall of the switching part is provided with a second arc-shaped structure, which can be engaged with the second steel ball.

[0012] Furthermore, the driving device includes a cylinder, a piston, a third spring, and a base plate disposed within the switching body. The top of the cylinder has an air passage, and the upper cover has a vent hole communicating with the air passage. The base plate is installed at the bottom of the cylinder, and the piston slides within the cylinder. The two ends of the third spring are respectively connected between the piston and the base plate. The bottom of the piston is connected to a pull plate, and the bottom of the pull rod is connected to the pull plate. The pull plate is located below the base.

[0013] Furthermore, the piston includes a piston head and a piston rod, with both ends of the piston rod connected to the piston head and a pull plate, respectively. The piston head slides within the cylinder body, and a plurality of sealing rings are provided on the outer periphery of the piston head.

[0014] Furthermore, the quick-change sleeve mechanism also includes a sleeve in-place detection mechanism for detecting whether the clamp has successfully gripped the quick-change sleeve, and the sleeve in-place detection mechanism is installed on the upper cover.

[0015] Furthermore, the quick-change sleeve mechanism also includes a sleeve disengagement detection mechanism for detecting whether the jacket has been successfully released from the quick-change sleeve, and the sleeve disengagement detection mechanism is mounted on the base.

[0016] Furthermore, it also includes a support column and a bracket, wherein the support column is connected between the base and the bracket.

[0017] Compared with the prior art, the automatic tire installation and tightening gun shaft sleeve switching device of the present invention has the following beneficial effects:

[0018] The flexible adapter can be connected to quick-change sleeves of different specifications, enabling quick replacement and installation of sleeves of different specifications, reducing production costs and improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a perspective view of the automatic tire installation and tightening gun shaft sleeve switching device in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram showing the connection between the elastic adapter and the quick-change sleeve in an embodiment of the present invention;

[0021] Figure 3 for Figure 2 Sectional view of AA;

[0022] Figure 4 This is a schematic diagram of the structure of the flexible adapter in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the quick-connect sleeve in an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Sectional view of BB;

[0025] Figure 7 This is a schematic diagram of the structure of the upper cover in an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the switching body in an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the installation of the drive mechanism in an embodiment of the present invention;

[0028] Figure 10 This is a schematic diagram of the piston structure in an embodiment of the present invention.

[0029] In the attached diagram: 1-elastic adapter; 11-adapter body; 12-sliding sleeve; 121-wedge groove; 13-first spring; 14-first steel ball; 15-clamping ring; 16-pin; 2-quick-change sleeve; 21-connecting part; 211-first arc-shaped structure; 22-switching part; 221-second arc-shaped structure; 23-mounting part; 3-sleeve quick-change mechanism; 31-base; 32-switching body; 321-second placement hole; 3 22-Jacket; 323-Pull rod; 324-Second spring; 325-Air passage; 326-Cylinder body; 327-Base plate; 33-Top cover; 331-First placement hole; 332-Ventilation hole; 34-Piston; 341-Piston head; 3411-Sealing groove; 342-Piston rod; 35-Third spring; 36-Pull plate; 37-Support column; 38-Bracket; 4-Sleeve in-place detection mechanism; 5-Sleeve disengagement detection mechanism. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Example 1

[0033] An automatic tire mounting and tightening gun shaft sleeve automatic switching device, such as Figures 1 to 9As shown, the device includes an elastic adapter 1, a quick-change sleeve 2, and a sleeve quick-change mechanism 3. The elastic adapter 1 includes an adapter body 11, a sliding sleeve 12, a first spring 13, and a first steel ball 14. The sliding sleeve 12 is slidably sleeved on the outer periphery of the adapter body 11. The two ends of the first spring 13 are respectively connected to the adapter body 11 and the sliding sleeve 12. The top of the adapter body 11 is connected to the tightening gun shaft. The adapter body 11 has an axial cavity and a first slot communicating with the cavity. The first steel ball 14 is installed in the first slot, and the bottom of the sliding sleeve 12 can engage with the first steel ball 14. The quick-change sleeve 2 includes a connecting part 21, a switching part 22, and a mounting part 23 connected in sequence. The connecting part 21 is slidably connected to the cavity and can engage with the first steel ball 14. The sleeve quick-change mechanism 3 includes a base 3. 1. The switching body 32 and the top cover 33 are connected. The switching body 32 is mounted on the base 31, and the top cover 33 is mounted on the top of the switching body 32. The top cover 33 can contact the sliding sleeve 12. The top cover 33 has several first placement holes 331. The top of the switching body 32 has several second placement holes 321 corresponding to the first placement holes 331. A clip 322 is slidably installed in the second placement hole 321. The top of the clip 322 has several second slots for installing second steel balls. The switching part 22 can engage with the second steel ball. A second spring 324 is installed in the second placement hole 321. The two ends of the second spring 324 are respectively connected to the bottom of the clip 322 and the bottom of the second placement hole 321. A pull rod 323 is connected to the bottom of the clip 322. The switching body 32 is also provided with a driving device, which is connected to the pull rod 323.

[0034] The aforementioned automatic tire installation and tightening gun shaft sleeve automatic switching device, in its natural state, has the first spring 13 keeping the sliding sleeve 12 pressing the first steel ball 14, and the second spring 324 keeping the clamp 322 in the raised position. In use, the quick-change sleeve 2 on the tightening gun shaft needs to be loosened first. The tightening gun shaft with the quick-change sleeve 2 is then moved above the first placement hole 331 of the sleeve quick-change mechanism 3. The quick-change sleeve 2 is then inserted downwards into the clamp 322, where the second steel ball engages with the switching part 22. The upper cover 33 presses against the sliding sleeve 12, causing it to move upwards until the first steel ball 14 falls off. The connecting part 21 engages with the sliding sleeve 12, and the quick-change sleeve 2 falls off the adapter body 11. Simultaneously, the clamp 322 clamps the quick-change sleeve. When changing sleeve 2, the drive device moves the pull rod 323 and the clamp 322 downwards, causing the quick-change sleeve 2 to disengage from the adapter body 11, thus releasing the quick-change sleeve 2. At this time, the drive mechanism can drive the clamp 322 to reset for subsequent gripping of the quick-change sleeve 2. When installing a new quick-change sleeve 2, the tightening gun shaft is moved above the clamp 322 containing the new quick-change sleeve 2 and then moved downwards. The upper cover 33 presses the sliding sleeve 12 upwards, and the first steel ball 14 engages with the sliding sleeve 12. The connecting part 21 enters the cavity. The tightening gun shaft is then moved upwards, and under the action of the first spring 13, the sliding sleeve 12 moves downwards, releasing the first steel ball 14. The first steel ball 14 clamps the connecting part 21, completing the gripping of the quick-change sleeve 2. It should be noted that the quick-change sleeve 2 can be designed in different specifications for quick replacement. After the elastic adapter 1 is connected to the tightening gun shaft, only the quick-change sleeve 2 needs to be replaced during switching, reducing costs and improving production efficiency.

[0035] In this configuration, after the top of the adapter body 11 is fitted onto the tightening gun shaft, the connection between the adapter body 11 and the tightening gun shaft is fixed by the pin 16. Figure 4 As shown.

[0036] like Figure 4 As shown, a wedge-shaped groove 121 is provided at the bottom of the sliding sleeve 12, and the first steel ball 14 can be engaged with the wedge-shaped groove 121. In practice, the wedge-shaped hole can correspond to the first groove hole. When the upper cover 33 presses the sliding sleeve 12 upward, the sliding sleeve 12 presses the first spring 13, and the first steel ball 14 can retract into the wedge-shaped groove 121 inside the sliding sleeve 12. When the sliding sleeve 12 rebounds under the action of the first spring 13, the first steel ball 14 is pressed back into the first groove hole of the adapter body 11 by the wedge groove 121.

[0037] like Figure 3 , Figure 4 As shown, the adapter body 11 has a retaining ring 15 at the bottom, which can abut against the sliding sleeve 12 to prevent the sliding sleeve 12 from disengaging from the adapter body 11.

[0038] like Figure 5 , Figure 6As shown, the outer wall of the connecting part 21 is provided with a first arc-shaped structure 211, which can be engaged with the first steel ball 14 for fixing the quick-change sleeve 2 to the elastic adapter 1.

[0039] like Figure 5 , Figure 6 As shown, the outer wall of the switching part 22 is provided with a second arc-shaped structure 221, which can be engaged with the second steel ball for fixing the quick-change sleeve 2 by the jacket 322.

[0040] Specifically, such as Figure 8 As shown, the second placement hole 321 includes a first section hole, a second section hole, and a third section hole connected in sequence, and steps are provided between the first section hole and the second section hole, and between the second section hole and the third section hole. The sleeve 322 can slide in the first section hole. The top end of the second spring 324 is connected to the bottom of the sleeve 322, and the bottom end of the second spring 324 can be connected to the step between the first section hole and the second section hole, or a step is provided between the second section hole and the third section hole. The pull rod 323 passes through the first section hole, the second section hole, and the third section hole and is connected to the driving device. The step between the first section hole and the second section hole can also limit the movement of the sleeve 322.

[0041] Example 2

[0042] This embodiment is similar to Embodiment 1, except that, as Figure 9 As shown, the driving device includes a cylinder 326, a piston 34, a third spring 35, and a base plate 327 disposed within the switching body 32. The top of the cylinder 326 has an air passage 325, and the upper cover 33 has a vent hole 332 communicating with the air passage 325. The base plate 327 is installed at the bottom of the cylinder 326. The piston 34 slides within the cylinder 326. The two ends of the third spring 35 are respectively connected between the piston 34 and the base plate 327. The bottom of the piston 34 is connected to the pull plate 36, and the bottom of the pull rod 323 is connected to the pull plate 36. The pull plate 36 is located below the base 31. When switching quick-change sleeve 2, after the quick-change sleeve 2 to be replaced is connected and fixed to the clamp 322, air is supplied to the cylinder 326 through the vent 332 and the air passage 325, pushing the piston 34 to move down. The piston 34 compresses the third spring 35. The piston 34 drives the pull rod 323 and the clamp 322 to move down through the pull plate 36. The clamp 322 compresses the second spring 324. The clamp 322 clamps the quick-change sleeve 2 to release it. After the gun shaft is tightened and removed, the cylinder 326 releases air. The piston 34 and the clamp 322 move up into place under the action of the third spring 35 and the second spring 324, waiting for the quick-change sleeve 2 to be used in the next switch.

[0043] When the piston 34 moves downward, it can provide a certain loosening force to the quick-change sleeve 2, thereby increasing the success rate of switching the quick-change sleeve 2.

[0044] like Figure 10 As shown, the piston 34 includes a piston head 341 and a piston rod 342. The two ends of the piston rod 342 are connected to the piston head 341 and the pull plate 36, respectively. The piston head 341 slides within the cylinder body 326, and a plurality of sealing rings are provided on the outer periphery of the piston head 341. Specifically, the top and bottom of the outer periphery of the piston head 341 are respectively provided with sealing grooves 3411 for installing sealing rings to ensure airtightness.

[0045] Example 3

[0046] This embodiment is similar to Embodiment 2, except that, as Figure 1 , Figure 9 As shown, the quick-change sleeve mechanism 3 also includes a sleeve in-place detection mechanism 4, which is installed on the upper cover 33. The sleeve in-place detection mechanism 4 is used to detect whether the clamp 322 has successfully gripped the quick-change sleeve 2, and will automatically alarm in case of abnormality.

[0047] like Figure 1 As shown, the quick-change sleeve mechanism 3 also includes a sleeve disengagement detection mechanism 5, which is installed on the base 31. The sleeve disengagement detection mechanism 5 is used to detect whether the clamp 322 has been successfully disengaged from the quick-change sleeve 2. If the disengagement process encounters obstruction and cannot be disengaged, the sleeve disengagement detection mechanism 5 will automatically alarm if it cannot detect that the disengagement is in place. This is to prevent the quick-change sleeve 2 from being forcibly pulled when it is not fully disengaged from the tightening gun shaft, which would damage the quick-change sleeve mechanism 3.

[0048] like Figure 1 As shown, it also includes a support column 37 and a bracket 38. The support column 37 is connected between the base 31 and the bracket 38, and a certain space is formed between the base 31 and the bracket 38, which allows the pull plate 36 to move. The quick-change sleeve mechanism 3 can be fixed by the bracket 38, which facilitates the installation and use of the quick-change sleeve mechanism 3.

[0049] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic tire installation and tightening gun shaft sleeve automatic switching device, characterized in that, It includes a flexible adapter (1), a quick-change sleeve (2), and a sleeve quick-change mechanism (3); The elastic adapter (1) includes an adapter body (11), a sliding sleeve (12), a first spring (13), and a first steel ball (14). The sliding sleeve (12) is slidably sleeved on the outer periphery of the adapter body (11). The two ends of the first spring (13) are respectively connected to the adapter body (11) and the sliding sleeve (12). The top of the adapter body (11) is connected to the tightening gun shaft. The adapter body (11) has an axial cavity. The adapter body (11) has a first slot that communicates with the cavity. The first steel ball (14) is installed in the first slot. The bottom of the sliding sleeve (12) can be engaged with the first steel ball (14). The quick-change sleeve (2) includes a connecting part (21), a switching part (22) and a mounting part (23) connected in sequence. The connecting part (21) is slidably connected to the cavity, and the connecting part (21) can be engaged with the first steel ball (14). The quick-change sleeve mechanism (3) includes a base (31), a switching body (32), and a top cover (33). The switching body (32) is mounted on the base (31), and the top cover (33) is mounted on the top of the switching body (32). The top cover (33) can contact the sliding sleeve (12). The top cover (33) has several first placement holes (331). The top of the switching body (32) has several second placement holes (321) corresponding to the first placement holes (331). A sliding part is installed in the second placement hole (321). The sleeve (322) has several second slots for installing second steel balls on its top circumferentially. The switching part (22) can be engaged with the second steel balls. A second spring (324) is installed in the second placement hole (321). The two ends of the second spring (324) are respectively connected to the bottom of the sleeve (322) and the bottom of the second placement hole (321). A pull rod (323) is connected to the bottom of the sleeve (322). The switching body (32) is also provided with a driving device. The driving device is connected to the pull rod (323). The second placement hole (321) includes a first section hole, a second section hole and a third section hole connected in sequence, and a step is provided between the first section hole and the second section hole, and between the second section hole and the third section hole. The sleeve (322) slides in the first section hole. The top end of the second spring (324) is connected to the bottom of the sleeve (322). The bottom end of the second spring (324) is connected to the step between the first section hole and the second section hole or a step is provided between the second section hole and the third section hole. The pull rod (323) passes through the first section hole, the second section hole and the third section hole and is connected to the driving device. The step between the first section hole and the second section hole also limits the sleeve (322).

2. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 1, characterized in that, The bottom of the sliding sleeve (12) is provided with a wedge-shaped groove (121), and the first steel ball (14) can be engaged with the wedge-shaped groove (121).

3. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 1, characterized in that, The adapter body (11) has a retaining ring (15) at the bottom, which can abut against the sliding sleeve (12).

4. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 1, characterized in that, The outer wall of the connecting part (21) is provided with a first arc-shaped structure (211), which can be engaged with the first steel ball (14).

5. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 1, characterized in that, The outer wall of the switching part (22) is provided with a second arc-shaped structure (221), which can be engaged with the second steel ball.

6. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 1, characterized in that, The driving device includes a cylinder (326), a piston (34), a third spring (35), and a base plate (327) disposed in the switching body (32). The top of the cylinder (326) is provided with an air passage (325), and the upper cover (33) is provided with a vent hole (332) communicating with the air passage (325). The base plate (327) is installed at the bottom of the cylinder (326). The piston (34) slides in the cylinder (326). The two ends of the third spring (35) are respectively connected between the piston (34) and the base plate (327). The bottom of the piston (34) is connected to the pull plate (36), and the bottom of the pull rod (323) is connected to the pull plate (36). The pull plate (36) is located below the base (31).

7. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 6, characterized in that, The piston (34) includes a piston head (341) and a piston rod (342). The two ends of the piston rod (342) are connected to the piston head (341) and the pull plate (36) respectively. The piston head (341) slides inside the cylinder (326). The piston head (341) is provided with several sealing rings on its outer periphery.

8. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 1, characterized in that, The quick-change sleeve mechanism (3) further includes a sleeve in-situ detection mechanism (4) for detecting whether the clamp (322) has successfully gripped the quick-change sleeve (2), and the sleeve in-situ detection mechanism (4) is installed on the upper cover (33).

9. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to claim 1, characterized in that, The quick-change sleeve mechanism (3) further includes a sleeve disengagement detection mechanism (5) for detecting whether the clip (322) has been successfully disengaged from the quick-change sleeve (2), and the sleeve disengagement detection mechanism (5) is mounted on the base (31).

10. The automatic tire installation and tightening gun shaft sleeve automatic switching device according to any one of claims 1 to 9, characterized in that, It also includes a support column (37) and a bracket (38), the support column (37) being connected between the base (31) and the bracket (38).

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