Wheel bolt dismounting tool

Abstract

The wheel bolt disassembling and assembling tool comprises a base frame, a worm gear, a worm and a bolt connecting piece, the worm gear can be installed on the base frame in the mode of rotating around the central axis of the worm gear, and a first meshing face is formed on the outer side wall of the worm gear; a second meshing face is formed on the outer side wall of the worm, the second meshing face of the worm is meshed with the first meshing face of the worm gear, the worm can be installed on the base frame in the mode of rotating around the central axis of the worm, and a rotating shaft of the worm is perpendicular to a rotating shaft of the worm gear; the bolt connecting piece is arranged at a rotating shaft of the worm gear, relative rotating movement between the bolt connecting piece and the worm gear is limited, the bolt connecting piece comprises a bolt connecting part, the axis of the bolt connecting part and the rotating shaft of the worm gear are collinear, the bolt connecting part can be connected with a wheel bolt, and relative rotating movement between the bolt connecting part and the wheel is limited. According to the utility model, the worm gear is matched with the worm, so that the torque can be increased, and the wheel bolt can be disassembled and assembled by the electric tool.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair tools, and in particular to a wheel bolt removal and installation tool. Background Technology

[0002] Wheels are typically fixed to axles using automotive bolts. For safety reasons, automotive bolts are usually tight-fitting, so a large torque is required when installing or removing them. Currently, pneumatic tools are commonly used in car repair to install or remove automotive bolts. Especially in the truck and trailer sector, portable power tools cannot provide sufficient torque, which makes it difficult to install or remove wheel bolts outdoors. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a wheel bolt disassembly and assembly tool, which can increase the torque through the cooperation of worm gear and worm, thereby enabling electric tools to disassemble and assemble wheel bolts.

[0004] To achieve the above objectives, the present invention employs the following technical solution:

[0005] A wheel bolt removal and installation tool, comprising a base frame,

[0006] A worm gear, which is rotatable about its central axis, is mounted on the base frame, and the outer side wall of the worm gear is formed as a first meshing surface;

[0007] A worm, wherein the outer side wall of the worm is formed as a second meshing surface, and the second meshing surface of the worm meshes with the first meshing surface of the worm wheel; the worm is rotatably mounted on the base frame about its central axis, and the rotation axis of the worm is perpendicular to the rotation axis of the worm wheel.

[0008] The bolted connector is disposed at the rotation axis of the worm gear and the relative rotational movement between the bolted connector and the worm gear is restricted. The bolted connector includes a bolted connection portion, and the axis of the bolted connection portion is collinear with the rotation axis of the worm gear. The bolted connection portion can be bolted to a wheel and the relative rotational movement between the two is restricted.

[0009] Using the above technical solution, the user only needs to connect the bolt connection part to the wheel bolt on the wheel, and then use a power tool to drive the worm to rotate. The rotation of the worm can drive the worm wheel to rotate, thereby causing the bolt connection part on the bolt connection part to drive the wheel bolt to rotate, thus realizing the installation and removal of the wheel bolt, that is, installation is achieved by rotating forward and removal is achieved by rotating backward.

[0010] The cooperation between the worm and the worm wheel increases the torque, enabling the power tool to disassemble and assemble wheel bolts even without specialized tools, thus facilitating emergency outdoor use.

[0011] Furthermore, the worm gear is provided with a mating hole at its rotation axis; the axis of the mating hole is collinear with the rotation axis of the worm gear, and at least one end of the mating hole penetrates the side of the worm gear to form a mating mounting opening;

[0012] The bolted connector includes a mating part, which is disposed at one end of the mating part and is coaxially arranged with the mating part. The mating part is detachably inserted into the mating hole, and when the mating part is inserted into the mating hole, the relative rotational movement between the two is restricted.

[0013] By adopting the above technical solution, since the bolt connector is detachably installed on the worm gear, the user can replace the bolt connector of the corresponding specification according to different usage needs, that is, replace the bolt connector of different specifications to adapt to different specifications of wheel bolts, making the wheel bolt disassembly and assembly tool more practical; it also facilitates subsequent maintenance.

[0014] Specifically, in use, the user can insert the mating part of the bolt connector into the mating hole of the worm gear. Since the relative rotational movement between the two is restricted when the mating part is inserted into the mating hole, the worm gear can synchronously drive the bolt connector to rotate when it rotates.

[0015] Furthermore, when the mating part is inserted into the mating hole, the inner wall of the mating hole is opposite to the outer wall of the mating part;

[0016] The inner wall of the mating hole is provided with a first mating restriction structure, and the outer wall of the mating part is provided with a second mating restriction structure. When the mating part is inserted into the mating hole, the first mating restriction structure and the second mating restriction structure cooperate to restrict the relative rotational movement between the mating part and the mating hole.

[0017] By adopting the above technical solution, the fit between the mating hole and the mating part is made more reasonable; when the mating part is inserted into the mating hole, the first mating restriction structure and the second mating restriction structure will cooperate to restrict the relative rotational movement between the worm gear and the bolt connector.

[0018] Furthermore, one of the first and second mating restrictive structures is configured as a limiting protrusion, and correspondingly, the other of the second mating restrictive structure is configured as a limiting groove.

[0019] By adopting the above technical solution, the first and second mating restriction structures are made more reasonable; when the mating part is inserted into the mating hole, the limiting protrusion is engaged in the limiting groove, thereby restricting the relative rotational movement between the worm gear and the bolt connector.

[0020] Furthermore, the first mating limiting structure extends along the rotation axis of the worm gear, and the second mating limiting structure extends along the insertion direction of the bolt connector.

[0021] By adopting the above technical solution, the first and second matching restriction structures are made more reasonable, enabling them to match better.

[0022] Furthermore, along the extending direction of the limiting groove, one end of the limiting groove is open to form a limiting groove opening, and the other end is closed to form an insertion limiting surface.

[0023] By adopting the above technical solution, when the mating part is inserted into the mating hole, the limiting protrusion can enter the limiting groove through the opening of the limiting groove, and due to the setting of the insertion limiting surface, the limiting protrusion can be prevented from sliding out from this end, thereby making the insertion of the mating part more convenient and making it easier for the mating part to be maintained in the mating hole.

[0024] Furthermore, multiple first mating restrictive structures are provided, and the multiple first mating restrictive structures are arranged at intervals along the circumferential direction of the inner wall of the mating hole; correspondingly, the number of second mating restrictive structures matches the number of first mating restrictive structures, and the multiple second mating restrictive structures are arranged at intervals along the circumferential direction of the outer wall of the mating part and correspond one-to-one with the first mating restrictive structures.

[0025] By adopting the above technical solution, the first and second mating restriction structures can better fit together, and the fit is more stable and reliable, thereby ensuring that the restriction between the worm gear and the bolt connection is more reliable and stable.

[0026] Furthermore, the end of the mating part that preferentially enters the mating hole is provided with an insertion guide surface for guiding the mating part into the mating hole.

[0027] The above technical solution facilitates the operator in inserting the mating part into the mating hole; specifically, the insertion guide surface is an inclined surface.

[0028] Furthermore, the worm includes a worm body and a worm drive shaft. The outer side wall of the worm body forms the second meshing surface. A drive shaft hole matching the worm drive shaft is provided at the axis of the worm body, and the axis of the drive shaft hole is collinear with the axis of the worm body. The worm body is sleeved on the worm drive shaft through the drive shaft hole, and the relative rotational movement between the worm body and the worm drive shaft is restricted. The worm drive shaft is rotatably mounted on the base frame around its central axis.

[0029] By adopting the above technical solution, the worm gear is made more reasonable. Since the relative rotational movement between the worm gear body and the worm gear drive shaft is restricted, when the worm gear drive shaft rotates, the worm gear drive shaft can drive the worm gear body to rotate. Specifically, the cross-section of the worm gear drive shaft is non-circular, and correspondingly, the drive shaft hole matches the worm gear drive shaft and is non-circular, thereby realizing the restriction of relative rotational movement between the worm gear body and the worm gear drive shaft.

[0030] Furthermore, the wheel bolt removal and installation tool is equipped with a drive shaft limiting component, which acts on the worm drive shaft to restrict the movement of the worm drive shaft on its axis.

[0031] By adopting the above technical solution, the drive shaft limiting component can restrict the movement of the worm drive shaft on its axis, making the installation of the worm drive shaft more reasonable and more stable.

[0032] Furthermore, the base frame is provided with a worm gear mounting cavity for mounting the worm gear, and at least one end of the worm gear mounting cavity penetrates the side of the base frame to form a worm gear mounting opening;

[0033] The base frame is provided with a worm body mounting cavity for mounting the worm body, and the worm body mounting cavity is located on the side of the worm wheel mounting cavity and is connected to it, and at least one end of the two ends of the worm body mounting cavity penetrates the side of the base frame to form a worm body mounting opening.

[0034] The inner walls on both sides of the worm gear body mounting cavity along the axis of the worm gear body are formed as the first worm gear body mounting cavity inner wall and the second worm gear body mounting cavity inner wall. The base frame has a first worm drive shaft mounting cavity and a second worm drive shaft mounting cavity respectively provided on the outer sides of the first and second worm gear body mounting cavity inner walls. The axes of the first and second worm drive shaft mounting cavities are collinear with the axis of the worm gear body. The side of the first and second worm drive shaft mounting cavities facing the worm gear body mounting cavity is connected to the worm gear body mounting cavity. The end of the first worm drive shaft mounting cavity away from the worm gear body mounting cavity extends away from the worm gear body mounting cavity and penetrates the outer wall of the base frame to form an opening for the first worm drive shaft mounting cavity. The first and second worm drive shaft mounting cavities are used to accommodate and mount the worm drive shaft.

[0035] By adopting the above technical solution, the base frame is set up more reasonably, which can better install the worm gear and the worm.

[0036] Furthermore, the worm drive shaft extends outward from one end of the first worm drive shaft mounting cavity opening to form a drive section.

[0037] With the above technical solution, the drive unit is configured such that the operator can drive the worm gear drive shaft by operating the drive unit.

[0038] Furthermore, the base frame has a drive shaft limiting component mounting hole on the side wall at the corresponding position of the first worm drive shaft mounting cavity, which communicates with the first worm drive shaft mounting cavity, and / or has a drive shaft limiting component mounting hole on the side wall at the corresponding position of the second worm drive shaft mounting cavity, which communicates with the first worm drive shaft mounting cavity. The drive shaft limiting component mounting hole matches the drive shaft limiting component for mounting the drive shaft limiting component.

[0039] A first drive shaft limiting structure is provided on the outer side wall opposite to the mounting hole of the drive shaft limiting member on the worm drive shaft, and the first drive shaft limiting structure is arranged circumferentially around the outer side wall of the worm drive shaft; correspondingly, a second drive shaft limiting structure is provided on the side of the drive shaft limiting member facing the worm drive shaft, and the first drive shaft limiting structure and the second drive shaft limiting structure are matched to limit the axial movement of the worm drive shaft.

[0040] By adopting the above technical solution, the worm drive shaft and the drive shaft limiting component are more reasonable. When both the worm drive shaft and the drive shaft limiting component are installed on the base frame, the first drive shaft limiting structure and the second drive shaft limiting structure match to limit the axial movement of the worm drive shaft.

[0041] Furthermore, one of the first drive shaft limiting structure and the second drive shaft limiting structure is configured as a spherical protrusion, and the other of the first drive shaft limiting structure and the second drive shaft limiting structure is configured as a spherical annular groove that matches the spherical protrusion.

[0042] By adopting the above technical solution, the first drive shaft limiting structure and the second drive shaft limiting structure are more reasonable. The spherical protrusion is inserted into the spherical annular groove to limit the axial movement of the worm drive shaft without affecting the rotation of the worm drive shaft.

[0043] Furthermore, the first drive shaft limiting structure is configured as the spherical annular groove, and the second drive shaft limiting structure is configured as the spherical protrusion;

[0044] The drive shaft limiting component includes a drive shaft limiting ball and a drive shaft limiting plug. The drive shaft limiting ball matches the spherical annular groove and is located in the drive shaft limiting component mounting hole. The drive shaft limiting plug is installed in the drive shaft limiting component mounting hole and is located on the side of the drive shaft limiting ball away from the worm drive shaft. The drive shaft limiting plug acts on the drive shaft limiting ball so that the drive shaft limiting ball abuts against the spherical annular groove.

[0045] By adopting the above technical solution, the drive shaft limiting component is made more reasonable and facilitates actual production and installation. After the worm drive shaft is installed on the base, the drive shaft limiting ball can be installed into the drive shaft limiting component mounting hole first, and then the drive shaft limiting plug can be installed so that the drive shaft limiting plug acts on the drive shaft limiting ball, so that the drive shaft limiting ball can maintain contact with the spherical annular groove; specifically, the drive shaft limiting plug is threadedly engaged with the drive shaft limiting component mounting hole.

[0046] Furthermore, the base frame has a drive shaft limiting member mounting hole on the side wall at the corresponding position of the first worm drive shaft mounting cavity or the second worm drive shaft mounting cavity;

[0047] The wheel bolt removal and installation tool includes an elastic element. One of the first worm drive shaft mounting cavity and the second worm drive shaft mounting cavity, which does not have the mounting hole for the drive shaft limiting component, is formed as a special worm drive shaft mounting cavity. The special worm drive shaft mounting cavity expands radially outward toward the worm body mounting cavity to form an elastic element mounting space. The elastic element is sleeved on the worm drive shaft and located in the elastic element mounting space. Both ends of the elastic element abut against the worm body and the inner wall of the elastic element mounting space opposite to the worm body, respectively.

[0048] By adopting the above technical solution, the wheel bolt disassembly and assembly tool becomes more reasonable. Since production has a certain error range, the setting of the elastic element allows the elastic element to act on the worm gear body to limit the axial movement of the worm gear body, ensuring the stable and reliable rotation of the worm gear body. Moreover, due to the use of the elastic element, it has a certain degree of elasticity, which can also prevent the rotational movement of the worm gear body from getting stuck. Specifically, the elastic element is a spring.

[0049] Furthermore, the special worm drive shaft mounting cavity includes a special worm drive shaft mounting cavity body and a special worm drive shaft mounting cavity end cap. The bore diameter of the special worm drive shaft mounting cavity body matches the elastic element, and the outer diameter of the special worm drive shaft mounting cavity end cap matches the bore diameter of the special worm drive shaft mounting cavity body for installation in the special worm drive shaft mounting cavity body. The special worm drive shaft mounting cavity end cap is provided with an end cap hole, and the end cap hole matches the worm drive shaft.

[0050] The above technical solution makes the special worm drive shaft mounting cavity more reasonable and facilitates actual production and installation. Specifically, during installation, the worm body is first installed into the worm body mounting cavity. Then, the worm drive shaft is sequentially passed through the special worm drive shaft mounting cavity body and the worm body, and inserted into one of the first and second worm drive shaft mounting cavities that is not formed as a special worm drive shaft mounting cavity. Then, the elastic element is installed, and finally, the special worm drive shaft mounting cavity end cap is installed. Specifically, the special worm drive shaft mounting cavity end cap and the special worm drive shaft mounting cavity body are connected by threads.

[0051] Furthermore, the bolted connector includes an operating part, which is disposed on the side of the mating part away from the bolted connector.

[0052] By adopting the above technical solution, the operation part is designed to facilitate user operation of the bolted connector.

[0053] Furthermore, the bolt connection portion is a nut protrusion that can be inserted into the nut hole of the wheel bolt.

[0054] The above technical solution makes the bolted connection more reasonable.

[0055] Furthermore, the wheel bolt removal and installation tool includes a side cover, which covers the side of the base frame where the worm gear mounting port is provided to cover the worm gear mounting port, and covers the side of the base frame where the worm body mounting port is provided to cover the worm body mounting port.

[0056] The side cover, which is installed at the worm gear mounting opening, has a mating hole exposure hole at the corresponding position of the mating hole to expose the mating hole.

[0057] By adopting the above technical solution, the wheel bolt removal and installation tool is made more reasonable. The side cover can cover the worm gear mounting port and the worm body mounting port, which is not only more aesthetically pleasing, but also can prevent dust and other debris from entering.

[0058] Furthermore, the base frame is provided with the worm gear mounting port and the worm body mounting port on the same side or both sides, and the side cover covering the worm gear mounting port and the side cover covering the worm body mounting port on the same side are integral parts.

[0059] The above technical solution makes the side cover more reasonable.

[0060] Furthermore, the wheel bolt removal and installation tool includes a support tube, and the base frame is provided with an outwardly extending support tube connection part, and the extension direction of the support tube connection part is perpendicular to the rotation axis of the worm and the rotation axis of the worm wheel; the inner hole of the support tube is formed as a support sleeve hole, and the support tube is sleeved outside the support tube connection part through the support sleeve hole.

[0061] By adopting the above technical solution, the wheel bolt removal and installation tool is made more reasonable. When in use, one end of the support sleeve can be sleeved outside the support tube connection part, and the other end of the support sleeve can be in contact with the ground to provide support, making it easier for the operator to operate the power tool to apply force.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] (1) The wheel bolt disassembly and assembly tool of this utility model can increase torque through the cooperation of worm gear and worm, so that electric tools can also disassemble and assemble wheel bolts.

[0064] (2) The wheel bolt disassembly and assembly tool of this utility model has a detachable bolt connection, which can be replaced by the operator according to his own needs, greatly increasing its practicality.

[0065] (3) The wheel bolt disassembly and assembly tool of this utility model is reasonably designed. Attached Figure Description

[0066] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1 This is a three-dimensional structural diagram of the wheel bolt removal and installation tool of this utility model;

[0068] Figure 2 This is an exploded structural diagram of the wheel bolt removal and assembly tool of this utility model.

[0069] Figure 3 This is a cross-sectional view of the wheel bolt removal and installation tool of this utility model;

[0070] Figure 4 This is a cross-sectional view of the wheel bolt removal and installation tool of this utility model from another direction.

[0071] Figure 5 This is a three-dimensional structural diagram of the bolt connection component in the wheel bolt disassembly and assembly tool of this utility model;

[0072] The component names corresponding to the various reference numerals in the figure are as follows: 1. Base frame; 101. Worm gear mounting cavity; 101-1. Worm gear mounting port; 102. Worm body mounting cavity; 102-1. Worm body mounting port; 102-2. Inner wall of the first worm body mounting cavity; 102-3. Inner wall of the second worm body mounting cavity; 103. First worm drive shaft mounting cavity; 103-1. Opening of the first worm drive shaft mounting cavity; 104. Second worm drive shaft mounting cavity; 105. Drive shaft limiting component mounting hole; 106. Special worm drive shaft mounting cavity; 106-1. Elastic component mounting space; 106-2. Special worm drive shaft mounting cavity body; 106-3. Special worm drive shaft mounting cavity end cap; 106-31. End cap hole; 107. Support tube connection part; 2. Worm gear; 201. First meshing surface; 202. Mating 1. Hole; 203. First mating limiting structure; 3. Worm; 301. Second meshing surface; 302. Worm body; 302-1. Drive shaft hole; 303. Worm drive shaft; 303-1. First drive shaft limiting structure; 304. Drive part; 4. Bolt connector; 401. Bolt connector; 402. Mating part; 402-1. Insertion guide surface; 403. Second mating limiting structure; 404. Operating part; 5. Limiting protrusion; 6. Limiting groove; 601. Limiting groove opening; 602. Insertion limiting surface; 7. Drive shaft limiting component; 701. Second drive shaft limiting structure; 702. Drive shaft limiting ball; 703. Drive shaft limiting plug; 8. Spherical protrusion; 9. Spherical annular groove; 10. Elastic element; 11. Side cover; 1101. Mating hole exposure hole; 12. Support tube; 1201. Support sleeve hole. Detailed Implementation

[0073] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0074] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0075] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0076] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0077] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0078] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0079] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0080] See Figures 1 to 5 This utility model provides a wheel bolt removal and installation tool, including a base frame 1.

[0081] Worm gear 2, which is rotatable about its central axis and is mounted on the base frame 1, wherein the outer side wall of the worm gear 2 is formed as a first meshing surface 201;

[0082] The worm 3 has an outer side wall formed as a second meshing surface 301, and the second meshing surface 301 of the worm 3 meshes with the first meshing surface 201 of the worm wheel 2. The worm 3 is rotatably mounted on the base frame 1 around its central axis, and the rotation axis of the worm 3 is perpendicular to the rotation axis of the worm wheel 2.

[0083] And a bolt connector 4, which is disposed at the rotation axis of the worm gear 2 and the relative rotational movement between the bolt connector 4 and the worm gear 2 is restricted. The bolt connector 4 includes a bolt connection part 401, and the axis of the bolt connection part 401 is collinear with the rotation axis of the worm gear 2. The bolt connection part 401 can be bolted to the wheel and the relative rotational movement between the two is restricted.

[0084] Using the above technical solution, the user only needs to connect the bolt connection part 401 to the wheel bolt on the wheel, and then use a power tool to drive the worm 3 to rotate. The rotation of the worm 3 can drive the worm wheel 2 to rotate, thereby causing the bolt connection part 401 on the bolt connection part 4 to drive the wheel bolt to rotate, thus realizing the installation and removal of the wheel bolt, that is, installation is achieved by rotating forward and removal is achieved by rotating backward.

[0085] The cooperation between the worm 3 and the worm wheel 2 increases the torque, enabling the power tool to disassemble and assemble wheel bolts even without specialized tools, thus facilitating emergency use outdoors.

[0086] Furthermore, the worm gear 2 is provided with a mating hole 202 at its rotation axis; the axis of the mating hole 202 is collinear with the rotation axis of the worm gear 2, and at least one end of the mating hole 202 penetrates the side of the worm gear 2 to form a mating mounting opening;

[0087] The bolt connector 4 includes a mating part 402, and the bolt connecting part 401 is disposed at one end of the mating part 402. The bolt connecting part 401 and the mating part 402 are coaxially arranged. The mating part 402 is detachably inserted into the mating hole 202, and when the mating part 402 is inserted into the mating hole 202, the relative rotational movement between the two is restricted.

[0088] By adopting the above technical solution, since the bolt connector 4 is detachably installed on the worm gear 2, the user can replace the bolt connector 4 of the corresponding specification according to different usage needs, that is, replace the bolt connector 401 of different specifications to adapt to different specifications of wheel bolts, making the wheel bolt disassembly and assembly tool more practical; it also facilitates subsequent maintenance.

[0089] Specifically, in use, the user can insert the mating part 402 of the bolt connector 4 into the mating hole 202 of the worm gear 2. Since the relative rotational movement between the two is restricted when the mating part 402 is inserted into the mating hole 202, the worm gear 2 can synchronously drive the bolt connector 4 to rotate when it rotates.

[0090] Furthermore, when the mating part 402 is inserted into the mating hole 202, the inner wall of the mating hole 202 is opposite to the outer wall of the mating part 402;

[0091] The inner wall of the mating hole 202 is provided with a first mating restriction structure 203, and the outer wall of the mating part 402 is provided with a second mating restriction structure 403. When the mating part 402 is inserted into the mating hole 202, the first mating restriction structure 203 and the second mating restriction structure 403 cooperate to restrict the relative rotational movement between the mating part 402 and the mating hole 202.

[0092] By adopting the above technical solution, the fit between the mating hole 202 and the mating part 402 is more reasonable; when the mating part 402 is inserted into the mating hole 202, the first mating restriction structure 203 and the second mating restriction structure 403 will cooperate to restrict the relative rotational movement between the worm gear 2 and the bolt connector 4.

[0093] Furthermore, one of the first mating restricting structure 203 and the second mating restricting structure 403 is configured as a limiting protrusion 5, and correspondingly, the other of the second mating restricting structure 403 is configured as a limiting groove 6.

[0094] By adopting the above technical solution, the first mating restriction structure 203 and the second mating restriction structure 403 are more reasonable; when the mating part 402 is inserted into the mating hole 202, the limiting protrusion 5 is engaged in the limiting groove 6, thereby restricting the relative rotational movement between the worm gear 2 and the bolt connector 4.

[0095] Furthermore, the first mating restricting structure 203 extends along the rotation axis of the worm gear 2, and the second mating restricting structure 403 extends along the insertion direction of the bolt connector 4.

[0096] By adopting the above technical solution, the first mating restriction structure 203 and the second mating restriction structure 403 are made more reasonable, so that the two can better cooperate.

[0097] Furthermore, along the extending direction of the limiting groove 6, one end of the limiting groove 6 is open to form a limiting groove opening 601, and the other end is closed to form an insertion limiting surface 602.

[0098] By adopting the above technical solution, when the mating part 402 is inserted into the mating hole 202, the limiting protrusion 5 can enter the limiting groove 6 through the limiting groove opening 601. Due to the setting of the insertion limiting surface 602, the limiting protrusion 5 can be prevented from sliding out from this end, thereby making the insertion of the mating part 402 more convenient and making it easier for the mating part 402 to be maintained in the mating hole 202.

[0099] Furthermore, multiple first mating restrictive structures 203 are provided, and the multiple first mating restrictive structures 203 are arranged at intervals along the circumferential direction of the inner wall of the mating hole 202; correspondingly, the number of second mating restrictive structures 403 matches the number of first mating restrictive structures 203, and multiple second mating restrictive structures 403 are arranged at intervals along the circumferential direction of the outer wall of the mating part 402 and correspond one-to-one with the first mating restrictive structures 203.

[0100] By adopting the above technical solution, the first mating restriction structure 203 and the second mating restriction structure 403 can better fit together, and the fit is more stable and reliable, thereby ensuring that the restriction between the worm gear 2 and the bolt connection 4 is more reliable and stable.

[0101] Furthermore, the end of the mating part 402 that preferentially enters the mating hole 202 is provided with an insertion guide surface 402-1 for guiding the mating part 402 into the mating hole 202.

[0102] By adopting the above technical solution, it is convenient for the operator to insert the mating part 402 into the mating hole 202; specifically, the insertion guide surface 402-1 is an inclined surface.

[0103] Further, the worm 3 includes a worm body 302 and a worm drive shaft 303. The outer side wall of the worm body 302 is formed as the second meshing surface 301. A drive shaft hole 302-1 matching the worm drive shaft 303 is provided at the axis of the worm body 302, and the axis of the drive shaft hole 302-1 is collinear with the axis of the worm body 302. The worm body 302 is sleeved on the worm drive shaft 303 through the drive shaft hole 302-1, and the relative rotational movement between the worm body 302 and the worm drive shaft 303 is restricted. The worm drive shaft 303 is rotatably mounted on the base frame 1 around its central axis.

[0104] By adopting the above technical solution, the worm 3 is made more reasonable. Since the relative rotational movement between the worm body 302 and the worm drive shaft 303 is restricted, when the worm drive shaft 303 rotates, the worm drive shaft 303 can drive the worm body 302 to rotate. Specifically, the cross-section of the worm drive shaft 303 is non-circular, and correspondingly, the drive shaft hole 302-1 matches the worm drive shaft 303 and is non-circular, thereby realizing the restriction of relative rotational movement between the worm body 302 and the worm drive shaft 303.

[0105] Furthermore, the wheel bolt removal and installation tool is equipped with a drive shaft restrictor 7, which acts on the worm drive shaft 303 to restrict the movement of the worm drive shaft 303 on its axis.

[0106] By adopting the above technical solution, the drive shaft limiting member 7 can restrict the movement of the worm drive shaft 303 on its axis, making the installation of the worm drive shaft 303 more reasonable and more stable.

[0107] Furthermore, the base frame 1 is provided with a worm gear mounting cavity 101 for mounting the worm gear 2, and at least one end of the worm gear mounting cavity 101 penetrates the side of the base frame 1 to form a worm gear mounting port 101-1;

[0108] The base frame 1 is provided with a worm body mounting cavity 102 for mounting the worm body 302, and the worm body mounting cavity 102 is located on the side of the worm wheel mounting cavity 101 and communicates with it, and at least one end of the two ends of the worm body mounting cavity 102 penetrates the side of the base frame 1 to form a worm body mounting port 102-1.

[0109] The inner walls on both sides of the worm gear body mounting cavity 102 along the axis of the worm gear body 302 are formed as a first worm gear body mounting cavity inner wall 102-2 and a second worm gear body mounting cavity inner wall 102-3; the base frame 1 is provided with a first worm gear drive shaft mounting cavity 103 and a second worm gear drive shaft mounting cavity 104 on the outer sides of the first worm gear body mounting cavity inner wall 102-2 and the second worm gear body mounting cavity inner wall 102-3, respectively, and the axis of the first worm gear drive shaft mounting cavity 103 and the axis of the second worm gear drive shaft mounting cavity 104 are parallel to the axis of the worm gear body 302. The first worm drive shaft mounting cavity 103 and the second worm drive shaft mounting cavity 104 are collinear, and the side of the first worm drive shaft mounting cavity 103 facing the worm body mounting cavity 102 is connected to the worm body mounting cavity 102; the end of the first worm drive shaft mounting cavity 103 away from the worm body mounting cavity 102 extends away from the worm body mounting cavity 102 and penetrates the outer wall of the base frame 1 to form a first worm drive shaft mounting cavity opening 103-1; the first worm drive shaft mounting cavity 103 and the second worm drive shaft mounting cavity 104 are used to accommodate and mount the worm drive shaft 303.

[0110] By adopting the above technical solution, the base frame 1 is set up more reasonably, and the worm gear 2 and the worm 3 can be installed better.

[0111] Furthermore, the worm drive shaft 303 extends outward from one end of the first worm drive shaft mounting cavity opening 103-1 to form a drive section 304.

[0112] With the above technical solution, the drive unit 304 is provided so that the operator can drive the worm drive shaft 303 by operating the drive unit 304.

[0113] Furthermore, the base frame 1 has a drive shaft limiting component mounting hole 105 communicating with the first worm drive shaft mounting cavity 103 on the side wall at the corresponding position of the first worm drive shaft mounting cavity 103 and / or a drive shaft limiting component mounting hole 105 communicating with the first worm drive shaft mounting cavity 103 on the side wall at the corresponding position of the second worm drive shaft mounting cavity 104. The drive shaft limiting component mounting hole 105 matches the drive shaft limiting component 7 for mounting the drive shaft limiting component 7.

[0114] A first drive shaft limiting structure 303-1 is provided on the outer side wall of the worm drive shaft 303 opposite to the drive shaft limiting member mounting hole 105, and the first drive shaft limiting structure 303-1 is arranged circumferentially around the outer side wall of the worm drive shaft 303; correspondingly, a second drive shaft limiting structure 701 is provided on the side of the drive shaft limiting member 7 facing the worm drive shaft 303, and the first drive shaft limiting structure 303-1 and the second drive shaft limiting structure 701 are matched to limit the axial movement of the worm drive shaft 303.

[0115] With the above technical solution, the worm drive shaft 303 and the drive shaft limiting member 7 are more reasonable. When the worm drive shaft 303 and the drive shaft limiting member 7 are both installed on the base frame 1, the first drive shaft limiting structure 303-1 and the second drive shaft limiting structure 701 match to limit the axial movement of the worm drive shaft 303.

[0116] Furthermore, one of the first drive shaft limiting structure 303-1 and the second drive shaft limiting structure 701 is configured as a spherical protrusion 8, and the other of the first drive shaft limiting structure 303-1 and the second drive shaft limiting structure 701 is configured as a spherical annular groove 9 that matches the spherical protrusion 8.

[0117] By adopting the above technical solution, the first drive shaft limiting structure 303-1 and the second drive shaft limiting structure 701 are more reasonable. The spherical protrusion 8 is inserted into the spherical annular groove 9 to limit the axial movement of the worm drive shaft 303 without affecting the rotation of the worm drive shaft 303.

[0118] Furthermore, the first drive shaft limiting structure 303-1 is configured as the spherical annular groove 9, and the second drive shaft limiting structure 701 is configured as the spherical protrusion 8;

[0119] The drive shaft limiting component 7 includes a drive shaft limiting ball 702 and a drive shaft limiting plug 703. The drive shaft limiting ball 702 matches the spherical annular groove 9 and is located in the drive shaft limiting component mounting hole 105. The drive shaft limiting plug 703 is installed in the drive shaft limiting component mounting hole 105 and is located on the side of the drive shaft limiting ball 702 away from the worm drive shaft 303. The drive shaft limiting plug 703 acts on the drive shaft limiting ball 702 so that the drive shaft limiting ball 702 abuts against the spherical annular groove 9.

[0120] By adopting the above technical solution, the drive shaft limiting component 7 is made more reasonable and facilitates actual production and installation. After the worm drive shaft 303 is installed on the base, the drive shaft limiting ball 702 can be installed into the drive shaft limiting component mounting hole 105 first, and then the drive shaft limiting plug 703 can be installed so that the drive shaft limiting plug 703 acts on the drive shaft limiting ball 702 so that the drive shaft limiting ball 702 can maintain contact with the spherical annular groove 9. Specifically, the drive shaft limiting plug 703 is threadedly engaged with the drive shaft limiting component mounting hole 105.

[0121] Furthermore, the base frame 1 has a drive shaft limiting member mounting hole 105 on the side wall at the corresponding position of the first worm drive shaft mounting cavity 103 or the second worm drive shaft mounting cavity 104;

[0122] The wheel bolt removal and installation tool includes an elastic element 10. One of the first worm drive shaft mounting cavity 103 and the second worm drive shaft mounting cavity 104 without the drive shaft limiting component mounting hole 105 is formed as a special worm drive shaft mounting cavity 106. The special worm drive shaft mounting cavity 106 expands radially outward toward the worm body mounting cavity 102 to form an elastic element mounting space 106-1. The elastic element 10 is sleeved on the worm drive shaft 303 and located in the elastic element mounting space 106-1. The two ends of the elastic element 10 abut against the inner wall of the worm body 302 and the inner wall of the elastic element mounting space 106-1 opposite to the worm body 302, respectively.

[0123] By adopting the above technical solution, the wheel bolt disassembly and assembly tool becomes more reasonable. Since there is a certain error range in production, the setting of the elastic element 10 allows the elastic element 10 to act on the worm body 302 to limit the axial movement of the worm body 302, ensuring the stable and reliable rotation of the worm body 302. Moreover, due to the use of the elastic element 10, it has a certain degree of elasticity, which can also prevent the rotational movement of the worm body 302 from getting stuck. Specifically, the elastic element 10 is a spring.

[0124] Furthermore, the special worm drive shaft mounting cavity 106 includes a special worm drive shaft mounting cavity body 106-2 and a special worm drive shaft mounting cavity end cap 106-3. The bore diameter of the special worm drive shaft mounting cavity body 106-2 matches the elastic element 10, and the outer diameter of the special worm drive shaft mounting cavity end cap 106-3 matches the bore diameter of the special worm drive shaft mounting cavity body 106-2 for installation in the special worm drive shaft mounting cavity body 106-2. The special worm drive shaft mounting cavity end cap 106-3 is provided with an end cap hole 106-31, and the end cap hole 106-31 matches the worm drive shaft 303.

[0125] The above technical solution makes the special worm drive shaft mounting cavity 106 more reasonable and facilitates actual production and installation. Specifically, during installation, the worm body 302 is first installed into the worm body mounting cavity 102. Then, the worm drive shaft 303 is sequentially passed through the special worm drive shaft mounting cavity body 106-2 and the worm body 302, and inserted into one of the first worm drive shaft mounting cavities 103 and the second worm drive shaft mounting cavities 104 that is not formed as a special worm drive shaft mounting cavity 106. Then, the elastic element 10 is installed, and finally, the special worm drive shaft mounting cavity end cap 106-3 is installed. Specifically, the special worm drive shaft mounting cavity end cap 106-3 and the special worm drive shaft mounting cavity body 106-2 are connected by threads.

[0126] Furthermore, the bolted connector 4 includes an operating part 404, which is disposed on the side of the mating part 402 away from the bolted connector 401.

[0127] By adopting the above technical solution, the operation part 404 is designed to facilitate user operation of the bolt connector 4.

[0128] Furthermore, the bolt connection portion 401 is a nut protrusion that can be inserted into the nut hole of the wheel bolt.

[0129] By adopting the above technical solution, the bolt connection part 401 becomes more reasonable.

[0130] Furthermore, the wheel bolt removal and installation tool includes a side cover 11, which covers the side of the base frame 1 where the worm gear mounting port 101-1 is provided to cover the worm gear mounting port 101-1, and covers the side of the base frame 1 where the worm body mounting port 102-1 is provided to cover the worm body mounting port 102-1;

[0131] The side cover 11, which is installed at the worm gear mounting port 101-1, has a mating hole exposure hole 1101 at the corresponding position of the mating hole 202 to expose the mating hole 202.

[0132] By adopting the above technical solution, the wheel bolt disassembly and assembly tool is made more reasonable. The side cover 11 can cover the worm gear mounting port 101-1 and the worm body mounting port 102-1, which is not only more aesthetically pleasing, but also can prevent dust and other debris from entering.

[0133] Furthermore, the base frame 1 is provided with the worm gear mounting port 101-1 and the worm body mounting port 102-1 on the same side or both sides, and the side cover 11 covering the worm gear mounting port 101-1 and the side cover 11 covering the worm body mounting port 102-1 on the same side are integral parts.

[0134] The above technical solution makes the side cover 11 more reasonable.

[0135] Furthermore, the wheel bolt removal and installation tool includes a support tube 12, and the base frame 1 is provided with an outwardly extending support tube connection part 107, and the extension direction of the support tube connection part 107 is perpendicular to the rotation axis of the worm 3 and the rotation axis of the worm wheel 2; the inner hole of the support tube 12 is formed as a support sleeve hole 1201, and the support tube 12 is sleeved on the support tube connection part 107 through the support sleeve hole 1201.

[0136] By adopting the above technical solution, the wheel bolt removal and installation tool is made more reasonable. When in use, one end of the support tube 12 can be sleeved outside the support tube connection part 107, and the other end of the support tube 12 can be in contact with the ground to provide support, making it easier for the operator to operate the power tool to apply force.

[0137] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0138] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wheel bolt removal and installation tool, characterized in that: Including the base frame (1), A worm gear (2) is mounted on the base frame (1) and is rotatable about its central axis. The outer side wall of the worm gear (2) is formed as a first meshing surface (201). The worm (3) has an outer side wall formed as a second meshing surface (301), and the second meshing surface (301) of the worm (3) meshes with the first meshing surface (201) of the worm wheel (2). The worm (3) is rotatably mounted on the base frame (1) around its central axis, and the rotation axis of the worm (3) is perpendicular to the rotation axis of the worm wheel (2). And a bolt connector (4), which is disposed at the rotation axis of the worm gear (2) and the relative rotational movement between the bolt connector (4) and the worm gear (2) is restricted. The bolt connector (4) includes a bolt connection part (401) and the axis of the bolt connection part (401) is collinear with the rotation axis of the worm gear (2). The bolt connection part (401) can be bolted to the wheel and the relative rotational movement between the two is restricted.

2. The wheel bolt removal and installation tool according to claim 1, characterized in that: The worm gear (2) has a mating hole (202) at its rotation axis; the axis of the mating hole (202) is collinear with the rotation axis of the worm gear (2), and at least one end of the mating hole (202) passes through the side of the worm gear (2) to form a mating installation opening; The bolt connector (4) includes a mating part (402), the bolt connecting part (401) is disposed at one end of the mating part (402), and the bolt connecting part (401) and the mating part (402) are coaxially arranged. The mating part (402) is detachably inserted into the mating hole (202), and when the mating part (402) is inserted into the mating hole (202), the relative rotational movement between the two is restricted.

3. The wheel bolt removal and installation tool according to claim 2, characterized in that: With the mating part (402) inserted into the mating hole (202), the inner wall of the mating hole (202) is opposite to the outer wall of the mating part (402); The inner wall of the mating hole (202) is provided with a first mating restriction structure (203), and the outer wall of the mating part (402) is provided with a second mating restriction structure (403). When the mating part (402) is inserted into the mating hole (202), the first mating restriction structure (203) and the second mating restriction structure (403) cooperate to restrict the relative rotational movement between the mating part (402) and the mating hole (202). One of the first mating limiting structure (203) and the second mating limiting structure (403) is configured as a limiting protrusion (5), and correspondingly, the other of the second mating limiting structure (403) is configured as a limiting groove (6). The first mating limiting structure (203) extends along the rotation axis direction of the worm gear (2), and the second mating limiting structure (403) extends along the insertion direction of the bolt connector (4); Along the extending direction of the limiting groove (6), one end of the limiting groove (6) is open to form a limiting groove opening (601), and the other end is closed to form an insertion limiting surface (602). Multiple first mating restrictive structures (203) are provided, and multiple first mating restrictive structures (203) are arranged at circumferential intervals along the inner wall of the mating hole (202); correspondingly, the number of second mating restrictive structures (403) matches the number of first mating restrictive structures (203), and multiple second mating restrictive structures (403) are arranged at circumferential intervals along the outer wall of the mating part (402) and correspond one-to-one with the first mating restrictive structures (203); The mating part (402) is provided with an insertion guide surface (402-1) at one end of the mating hole (202) for guiding the mating part (402) into the mating hole (202).

4. The wheel bolt removal and installation tool according to claim 2, characterized in that: The worm (3) includes a worm body (302) and a worm drive shaft (303). The outer side wall of the worm body (302) is formed as the second meshing surface (301). A drive shaft hole (302-1) matching the worm drive shaft (303) is provided at the axis of the worm body (302). The axis of the drive shaft hole (302-1) is collinear with the axis of the worm body (302). The worm body (302) is sleeved on the worm drive shaft (303) through the drive shaft hole (302-1). The relative rotational movement between the worm body (302) and the worm drive shaft (303) is restricted. The worm drive shaft (303) is rotatably mounted on the base frame (1) around its central axis. The wheel bolt removal and installation tool is equipped with a drive shaft limiting member (7), which acts on the worm drive shaft (303) to limit the movement of the worm drive shaft (303) on its axis.

5. The wheel bolt removal and installation tool according to claim 4, characterized in that: The base frame (1) is provided with a worm gear mounting cavity (101) for mounting the worm gear (2), and at least one end of the worm gear mounting cavity (101) penetrates the side of the base frame (1) to form a worm gear mounting port (101-1). The base frame (1) is provided with a worm body mounting cavity (102) for mounting the worm body (302), and the worm body mounting cavity (102) is located on the side of the worm wheel mounting cavity (101) and communicates with it, and at least one end of the two ends of the worm body mounting cavity (102) penetrates the side of the base frame (1) to form a worm body mounting opening (102-1). The inner walls on both sides of the worm body mounting cavity (102) along the axis of the worm body (302) are formed as a first worm body mounting cavity inner wall (102-2) and a second worm body mounting cavity inner wall (102-3); the base frame (1) is provided with a first worm drive shaft mounting cavity (103) and a second worm drive shaft mounting cavity (104) on the outer sides of the first worm body mounting cavity inner wall (102-2) and the second worm body mounting cavity inner wall (102-3), and the axis of the first worm drive shaft mounting cavity (103) and the axis of the second worm drive shaft mounting cavity (104) are parallel to the axis of the worm body (302). The first worm drive shaft mounting cavity (103) and the second worm drive shaft mounting cavity (104) are collinear, and the side of the first worm drive shaft mounting cavity (103) facing the worm body mounting cavity (102) is connected to the worm body mounting cavity (102); the end of the first worm drive shaft mounting cavity (103) away from the worm body mounting cavity (102) extends away from the worm body mounting cavity (102) and penetrates the outer wall of the base frame (1) to form a first worm drive shaft mounting cavity opening (103-1); the first worm drive shaft mounting cavity (103) and the second worm drive shaft mounting cavity (104) are used to accommodate and mount the worm drive shaft (303). The worm drive shaft (303) extends outward from one end of the first worm drive shaft mounting cavity opening (103-1) to form a drive section (304).

6. The wheel bolt removal and installation tool according to claim 5, characterized in that: The base frame (1) has a drive shaft limiting component mounting hole (105) communicating with the first worm drive shaft mounting cavity (103) on the side wall at the corresponding position of the first worm drive shaft mounting cavity (103) and / or a drive shaft limiting component mounting hole (105) communicating with the first worm drive shaft mounting cavity (103) on the side wall at the corresponding position of the second worm drive shaft mounting cavity (104). The drive shaft limiting component mounting hole (105) matches the drive shaft limiting component (7) for mounting the drive shaft limiting component (7). A first drive shaft limiting structure (303-1) is provided on the outer side wall of the worm drive shaft (303) opposite to the drive shaft limiting member mounting hole (105), and the first drive shaft limiting structure (303-1) is circumferentially surrounding the outer side wall of the worm drive shaft (303); correspondingly, a second drive shaft limiting structure (701) is provided on the side of the drive shaft limiting member (7) facing the worm drive shaft (303), and the first drive shaft limiting structure (303-1) and the second drive shaft limiting structure (701) match to limit the axial movement of the worm drive shaft (303); One of the first drive shaft limiting structure (303-1) and the second drive shaft limiting structure (701) is configured as a spherical protrusion (8), and the other of the first drive shaft limiting structure (303-1) and the second drive shaft limiting structure (701) is configured as a spherical annular groove (9) that matches the spherical protrusion (8).

7. The wheel bolt removal and installation tool according to claim 6, characterized in that: The first drive shaft limiting structure (303-1) is configured as the spherical annular groove (9), and the second drive shaft limiting structure (701) is configured as the spherical protrusion (8). The drive shaft limiting component (7) includes a drive shaft limiting ball (702) and a drive shaft limiting plug (703). The drive shaft limiting ball (702) matches the spherical annular groove (9). The drive shaft limiting ball (702) is located in the drive shaft limiting component mounting hole (105). The drive shaft limiting plug (703) is installed in the drive shaft limiting component mounting hole (105) and is located on the side of the drive shaft limiting ball (702) away from the worm drive shaft (303). The drive shaft limiting plug (703) acts on the drive shaft limiting ball (702) so that the drive shaft limiting ball (702) abuts against the spherical annular groove (9).

8. The wheel bolt removal and installation tool according to claim 6, characterized in that: The base frame (1) has a drive shaft limiting component mounting hole (105) on the side wall at the corresponding position of the first worm drive shaft mounting cavity (103) or the second worm drive shaft mounting cavity (104). The wheel bolt removal and installation tool includes an elastic element (10). One of the first worm drive shaft mounting cavity (103) and the second worm drive shaft mounting cavity (104) without the drive shaft limiting component mounting hole (105) is formed as a special worm drive shaft mounting cavity (106). The special worm drive shaft mounting cavity (106) expands radially outward toward the worm body mounting cavity (102) to form an elastic element mounting space (106-1). The elastic element (10) is sleeved outside the worm drive shaft (303) and located in the elastic element mounting space (106-1). The two ends of the elastic element (10) abut against the inner wall of the worm body (302) and the elastic element mounting space (106-1) opposite to the worm body (302), respectively. The special worm drive shaft mounting cavity (106) includes a special worm drive shaft mounting cavity body (106-2) and a special worm drive shaft mounting cavity end cap (106-3). The bore diameter of the special worm drive shaft mounting cavity body (106-2) matches the elastic element (10), and the outer diameter of the special worm drive shaft mounting cavity end cap (106-3) matches the bore diameter of the special worm drive shaft mounting cavity body (106-2) for installation in the special worm drive shaft mounting cavity body (106-2). The special worm drive shaft mounting cavity end cap (106-3) is provided with an end cap hole (106-31), and the end cap hole (106-31) matches the worm drive shaft (303).

9. The wheel bolt removal and installation tool according to claim 2, characterized in that: The bolted connector (4) includes an operating part (404) which is disposed on the side of the mating part (402) away from the bolted connector (401); The bolt connection part (401) is a nut protrusion that can be inserted into the nut hole of the wheel bolt.

10. The wheel bolt removal and installation tool according to claim 5, characterized in that: Includes a side cover (11), which covers the side of the base frame (1) where the worm gear mounting port (101-1) is provided to cover the worm gear mounting port (101-1) and covers the side of the base frame (1) where the worm body mounting port (102-1) is provided to cover the worm body mounting port (102-1). The side cover (11) covering the worm gear mounting port (101-1) has a mating hole exposure hole (1101) at the corresponding position of the mating hole (202) to expose the mating hole (202). The base frame (1) has a worm gear mounting port (101-1) and a worm body mounting port (102-1) on the same side or both sides. The side cover (11) covering the worm gear mounting port (101-1) and the side cover (11) covering the worm body mounting port (102-1) on the same side are integral parts. The wheel bolt removal and installation tool includes a support tube (12), and the base frame (1) is provided with an outwardly extending support tube connection part (107), and the extension direction of the support tube connection part (107) is perpendicular to the rotation axis of the worm (3) and the rotation axis of the worm wheel (2); the inner hole of the support tube (12) is formed as a support sleeve hole (1201), and the support tube (12) is sleeved on the outside of the support tube connection part (107) through the support sleeve hole (1201).

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