Vertical jack

Abstract

A jack main body comprises a lifting main body part and a driving main body part, the driving main body part is connected with the lifting main body part, a jack lifting handle is connected with the jack main body, the jack lifting handle is provided with a clamping assembly part, and the clamping assembly part comprises a containing groove and a limiting protrusion; the limiting protrusion is arranged at the notch position of the containing groove, the containing groove is used for containing the force arm compensation element, the limiting protrusion is used for being in limiting contact with the force arm compensation element and used for limiting the force arm compensation element to be disengaged from the containing groove, and the force arm compensation element is used for being in driving connection with the driving body part. The clamping assembly part of the lifting handle of the jack can be used for assembling the force arm compensation element, so that the force arm compensation element and the vertical jack can be formed into a whole, the force arm compensation element can be disassembled for use when needed, the force arm compensation element can be stored and carried by using the clamping assembly part when not needed, and the lifting handle is convenient to use and high in practicability. The moment arm compensation element is prevented from losing.

Description

Technical Field

[0001] The present application relates to the technical field of jacks, and in particular to a vertical jack. Background Art

[0002] Vertical jack is a widely used hydraulic tool and plays an important role in daily maintenance. Vertical jack adopts hydraulic principle, which is different from traditional mechanical jack. Therefore, vertical jack has the characteristics of easy operation, safety, reliability, labor saving, strong mobility, etc. It is a lifting tool that can be used on the vehicle. When using the vertical jack, it is necessary to provide lifting power by pressing. Therefore, if the pressing force is insufficient, the lifting power cannot be effectively formed. Generally, in order to provide sufficient pressing force, the driving force arm will be increased through long rods and other components to achieve sufficient pressing force. However, when the vertical jack is used on the vehicle, it is often inconvenient to carry long rods and other components, and even if the long rods and other components are carried, they are often lost due to poor storage, which affects the use of the vertical jack. Summary of the invention

[0003] Based on this, it is necessary to provide a vertical jack for the above-mentioned technical problems.

[0004] The present application provides a vertical jack, the vertical jack comprising:

[0005] A jack body, the jack body comprising a lifting body part and a driving body part, the driving body part being connected to the lifting body part;

[0006] A jack handle, the jack handle is connected to the jack body, the jack handle is provided with a snap-fit ​​assembly portion, wherein the snap-fit ​​assembly portion includes a receiving groove and a limiting protrusion, the limiting protrusion is arranged at the notch position of the receiving groove, the receiving groove is used to accommodate a lever arm compensation element, the limiting protrusion is used to make limiting contact with the lever arm compensation element, and is used to limit the lever arm compensation element from disengaging from the receiving groove, and the lever arm compensation element is used to be drivingly connected to the driving body portion.

[0007] In one embodiment, the jack handle defines a through inner ring space, and the snap-fit ​​assembly portion is disposed on an inner wall of the inner ring space of the jack handle;

[0008] Alternatively, the snap-fit ​​assembly portion is arranged on an outer side wall of the jack handle.

[0009] In one of the embodiments, the number of the accommodating grooves is several, and the several accommodating grooves are arranged on the inner wall of the inner ring space of the jack handle along the circumference of the inner ring space, and each of the accommodating grooves is used to accommodate one of the lever arm compensation elements.

[0010] In one of the embodiments, there are a plurality of the limiting protrusions, all of which are located on the inner wall of the inner ring space of the jack handle, and two relative limiting protrusions are arranged at the notch position of each accommodating groove.

[0011] In one embodiment, the accommodating groove is a circular groove, and the lever arm compensation element is a column element.

[0012] In one embodiment, a plurality of the accommodating grooves have different inner diameter sizes, and a plurality of the lever arm compensation elements have different outer diameter sizes, wherein each of the accommodating grooves is used to match a lever arm compensation element, and the inner diameter size of each of the accommodating grooves is the same as the outer diameter size of the matching lever arm compensation element.

[0013] In one of the embodiments, a portion of the through space in the inner ring space of the jack handle is a gripping unit space, and the gripping unit space and the space occupied by all the accommodating grooves of the snap-fit ​​assembly portion together constitute the inner ring space of the jack handle.

[0014] In one of the embodiments, the jack handle is provided with at least one connecting assembly portion, and the jack handle is connected to the jack body via the connecting assembly portion.

[0015] In one embodiment, the jack body also includes a main body base, the lifting main body part and the driving main body part are both arranged on the main body base, the number of the connecting assembly parts is set to two, the jack handle is connected to the lifting main body part through one of the connecting assembly parts, and the jack handle is connected to the main body base through another of the connecting assembly parts.

[0016] In one embodiment, the jack body also includes an auxiliary holding element, which is a curved element. One end of the auxiliary holding element is connected to the lifting body, and the other end of the auxiliary holding element is connected to the body base. The auxiliary holding element encloses an auxiliary holding space between the lifting body and the body base.

[0017] In the vertical jack, since a jack handle is added to the jack body, the arm compensation element can be assembled using the clamping assembly part of the jack handle, so that the arm compensation element and the vertical jack can be integrated, and the arm compensation element can be disassembled for use when needed, and the arm compensation element can be stored and carried using the clamping assembly part when not needed, which is convenient to use and prevents the arm compensation element from being lost. Moreover, the additional jack handle only needs to be installed on the side of the jack body, and there is no need to make major structural changes to the original structure of the jack body, which is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a three-dimensional view of a vertical jack provided in accordance with an embodiment of the present application.

[0019] FIG. 2 is a top view of a vertical jack provided in accordance with an embodiment of the present application.

[0020] FIG. 3 is a side view of a vertical jack provided in accordance with an embodiment of the present application.

[0021] FIG. 4 is an exploded view of a vertical jack provided in one embodiment of the present application.

[0022] FIG5 is a schematic structural diagram of a vertical jack without a lever arm compensation element provided in an embodiment of the present application.

[0023] FIG. 6 is a plan view of a jack handle provided in accordance with an embodiment of the present application.

[0024] FIG. 7 is a three-dimensional view of a jack handle provided in accordance with an embodiment of the present application.

[0025] FIG8 is a three-dimensional diagram of a vertical jack in a first use state provided by an embodiment of the present application.

[0026] FIG. 9 is a perspective view of a second use state of a vertical jack provided by an embodiment of the present application.

[0027] FIG. 10 is a three-dimensional diagram of a vertical jack in a third use state provided by an embodiment of the present application.

[0028] FIG. 11 is a schematic diagram of a vertical jack provided by an embodiment of the present application placed in a usage scenario.

[0029] FIG. 12 is a side view of a vertical jack provided in another embodiment of the present application.

[0030] FIG. 13 is a schematic structural diagram of a vertical jack without a lever arm compensation element provided in another embodiment of the present application.

[0031] FIG. 14 is a plan view of a jack handle provided in another embodiment of the present application.

[0032] Figure Number:

[0033] 1000, jack body; 2000, jack handle; 3000, lever arm compensation element;

[0034] 1100, lifting main body; 1200, driving main body; 1300, main body base; 1000a, auxiliary holding element;

[0035] 2000a, inner ring space; 2000a1, gripping unit space; 2100, snap-fit ​​assembly part; 2200, connection assembly part; 1000a1, auxiliary gripping space;

[0036] 2100a, accommodating groove; 2100b, limiting protrusion. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "several" appears, the meaning of "several" refers to the number of one or more, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0043] Referring to FIGS. 1 to 11 , the present application provides a vertical jack, which includes a jack body 1000 and a jack handle 2000. The jack body 1000 is a part for providing lifting power, and the jack handle 2000 is a part assembled on the jack body 1000 to provide auxiliary functions. As shown in FIG. 1 , the jack body 1000 mainly includes a lifting body part 1100 and a driving body part 1200, and the driving body part 1200 is connected to the lifting body part 1100. Among them, the lifting main body 1100 is the part of the jack body 1000 that is actually used to provide jacking power, and the driving main body 1200 is the part used to control the jack body 1000 to provide jacking power. The driving main body 1200 can be mainly used to control the lifting main body 1100 to start providing jacking power, control the lifting main body 1100 to stop providing jacking power, and control the degree of jacking power provided by the lifting main body 1100.

[0044] In one embodiment, the driving body 1200 of the jack body 1000 can be pressed to control the lifting body 1100 of the jack body 1000. By continuously pressing the driving body 1200 of the jack body 1000, the lifting body 1100 of the jack body 1000 is gradually raised, and a greater lifting power is provided by raising the lifting body 1100. In addition, those skilled in the art may also use other types or other control methods of the jack body 1000, which are not limited here.

[0045] As shown in Fig. 1, the jack handle 2000 is connected to the jack body 1000. The jack handle 2000 is provided with a snap-fit ​​assembly portion 2100, and the snap-fit ​​assembly portion 2100 is used to temporarily install the lever arm compensation element 3000. The snap-fit ​​assembly part 2100 can be constructed according to the adaptability of the structure, size, etc. of the lever arm compensation element 3000. For example, the snap-fit ​​assembly part can adopt a variety of feasible methods such as adhesive connection, snap connection, and threaded connection to achieve the connection of the lever arm compensation element 3000. For example, in one embodiment, the snap-fit ​​assembly part 2100 may include a receiving groove 2100a and a limiting protrusion 2100b, and the limiting protrusion 2100b is arranged at the notch position of the receiving groove 2100a. At this time, the receiving groove 2100a can be used to accommodate the lever arm compensation element 3000. After the lever arm compensation element 3000 is accommodated in the receiving groove 2100a, the limiting protrusion 2100b can be used to limit the contact with the lever arm compensation element 3000. Therefore, the lever arm compensation element 3000 is accommodated in the accommodating groove 2100a, and the limiting protrusion 2100b is in limiting contact with the lever arm compensation element 3000, so that the limiting protrusion 2100b can form a limiting effect on the lever arm compensation element 3000, limiting the lever arm compensation element 3000 from detaching from the accommodating groove 2100a, thereby ensuring that the lever arm compensation element 3000 can be stably accommodated in the accommodating groove 2100a.

[0046] The arm compensation element 3000 is used to be connected with the driving main body 1200 to increase the driving arm. As shown in FIG8 , when the driving main body 1200 of the jack body 1000 needs to be pressed, if the pressing force is not enough, the arm compensation element 3000 can be temporarily removed from the receiving groove 2100a of the jack handle 2000, and then one end of the arm compensation element 3000 is connected to the driving main body 1200 of the jack body 1000, and the other end of the arm compensation element 3000 is driven to increase the driving force applied by the arm compensation element 3000, thereby applying a sufficient pressing force to the driving main body 1200 of the jack body 1000.

[0047] It can be seen that, since the jack handle 2000 is added to the jack body 1000, the arm compensation element 3000 can be assembled by using the snap-fit ​​assembly part 2100 of the jack handle 2000, so that the arm compensation element 3000 can be integrated with the vertical jack, and the arm compensation element 3000 can be disassembled for use when needed, and the arm compensation element 3000 can be stored and carried by using the snap-fit ​​assembly part 2100 when not needed, which is convenient to use and prevents the arm compensation element 3000 from being lost. Moreover, the additional jack handle only needs to be installed on the side of the jack body 1000, and there is no need to make major structural changes to the original structure of the jack body 1000, so the cost is low.

[0048] The jack handle 2000 may adopt a variety of structures. For example, in one embodiment, the jack handle 2000 is provided with a through inner ring space 2000a, and the snap-fit ​​assembly portion 2100 is arranged on the inner wall of the inner ring space 2000a of the jack handle 2000. The inner wall of the inner ring space 2000a refers to the inner wall located in the inner ring space 2000a and the outer wall located outside the jack handle 2000 after the through inner ring space 2000a is provided at the middle of the jack handle 2000. At this time, the inner wall located in the inner ring space 2000a of the jack handle 2000 is the inner wall of the inner ring space 2000a mentioned above. When the snap-fit ​​assembly part 2100 is arranged on the inner wall of the inner ring space 2000a of the jack handle 2000, the lever arm compensation element 3000 can also be located in the inner ring space 2000a of the jack handle 2000 after being assembled on the snap-fit ​​assembly part 2100, so that the inner ring space 2000a of the jack handle 2000 can store the lever arm compensation element 3000 to a certain volume, thereby reducing the overall volume of the jack handle 2000 after the lever arm compensation element 3000 is assembled. In particular, when a plurality of lever arm compensation elements 3000 are assembled on the jack handle 2000, since the lever arm compensation elements 3000 are assembled in the inner ring space 2000a of the jack handle 2000, the overall volume of the jack handle 2000 after the plurality of lever arm compensation elements 3000 are assembled will not be too large.

[0049] Alternatively, as shown in FIGS. 12 to 14 , the snap-fit ​​assembly portion 2100 may also be disposed on the outer side wall of the jack handle 2000. In this case, the jack handle 2000 does not form the inner ring space 2000a as shown in FIGS. 1 to 11 , so the jack handle 2000 now has an inner side wall close to the jack body 1000 and an outer side wall away from the jack body 1000, and the snap-fit ​​assembly portion 2100 is disposed on the outer side wall away from the jack body 1000. In FIGS. 12 to 14 , except that the jack handle 2000 does not have the inner ring space 2000a as shown in FIGS. 1 to 11 , the other structures on the jack handle 2000 are the same as those shown in the embodiment in FIGS. 1 to 11 , so the same parts may refer to the above text.

[0050] In one embodiment, the number of accommodating grooves 2100a can be set to be several, and several accommodating grooves 2100a can be arranged on the inner wall of the inner ring space 2000a of the jack handle 2000 along the circumference of the inner ring space 2000a, and each accommodating groove 2100a is used to accommodate a lever arm compensation element 3000. Therefore, a plurality of accommodating grooves 2100a can accommodate a plurality of lever arm compensation elements 3000 in the inner ring space 2000a of the jack handle 2000, and a plurality of accommodating grooves 2100a can be arranged on the inner wall of the inner ring space 2000a of the jack handle 2000 along the circumference of the inner ring space 2000a. After an orderly arrangement is formed on the inner wall of the inner ring space 2000a, the plurality of lever arm compensation elements 3000 can be accommodated in the inner ring space 2000a of the jack handle 2000 through the plurality of accommodating grooves 2100a, so that orderly accommodation can be formed, thereby preventing disordered accommodation from causing the overall volume of the jack handle 2000 to be too large after the plurality of lever arm compensation elements 3000 are assembled on the jack handle 2000.

[0051] At this time, since several accommodating grooves 2100a can be used to accommodate several lever arm compensation elements 3000, several lever arm compensation elements 3000 can be used in combination. As shown in FIG8 , when the driving body 1200 of the jack body 1000 needs to be pressed, if the pressing force is not enough, the lever arm compensation element 3000 can be temporarily removed from the accommodating groove 2100a of the jack handle 2000, and then one end of the lever arm compensation element 3000 is connected to the driving body 1200 of the jack body 1000, and the other end of the lever arm compensation element 3000 is driven, so that the driving force applied can be increased by means of the lever arm compensation element 3000, thereby applying sufficient pressing force to the driving body 1200 of the jack body 1000.

[0052] If the pressing force applied to the driving main body 1200 of the jack body 1000 is still insufficient at this time, as shown in FIG. 9 , another lever arm compensation element 3000 may be temporarily removed from the accommodating groove 2100a of the jack handle 2000, and then one end of the lever arm compensation element 3000 may be connected to the other end of the previous lever arm compensation element 3000. The lever arm length is increased by connecting the two lever arm compensation elements 3000. By driving the other end of the second lever arm compensation element 3000, the applied driving force may be increased by the superposition of the two lever arm compensation elements 3000, thereby applying sufficient pressing force to the driving main body 1200 of the jack body 1000.

[0053] If the pressing force applied to the driving main body 1200 of the jack body 1000 is still insufficient at this time, the third lever arm compensation element 3000 may be temporarily removed from the accommodating groove 2100a of the jack handle 2000 as shown in FIG. 10 , and then one end of the third lever arm compensation element 3000 is connected to the other end of the second lever arm compensation element 3000. The lever arm length is increased by connecting the three lever arm compensation elements 3000. By driving the other end of the third lever arm compensation element 3000, the applied driving force can be increased by the superposition of the three lever arm compensation elements 3000, thereby applying sufficient pressing force to the driving main body 1200 of the jack body 1000.

[0054] By analogy, the number of the above-mentioned accommodating grooves 2100a and the lever arm compensation elements 3000 can be set according to actual conditions and is not limited here.

[0055] Regarding the cooperation between the accommodating groove 2100a and the limiting protrusion 2100b, in one embodiment, the number of the limiting protrusions 2100b can be set to several, and the several limiting protrusions 2100b are all located on the inner wall of the inner ring space 2000a of the jack handle 2000, and two relative limiting protrusions 2100b are set at the notch position of each accommodating groove 2100a. For example, a limiting protrusion 2100b is respectively set at the upper and lower relative positions of the notch position of each accommodating groove 2100a, so that the two limiting protrusions 2100b are formed opposite to each other in the upper and lower directions. Therefore, after the accommodating groove 2100a receives a lever arm compensation element 3000, the upper and lower relative limiting protrusions 2100b can form limits at the upper and lower relative positions of the lever arm compensation element 3000. The upper limiting protrusion 2100b is used to limit the lever arm compensation element 3000 from tipping over, and the lower limiting protrusion 2100b is used to limit the lever arm compensation element 3000 from leaving the accommodating groove 2100a, thereby tightly locking the lever arm compensation element 3000 in the accommodating groove 2100a under the joint action of the upper and lower points.

[0056] In one embodiment, the receiving groove 2100a is a circular groove, and the lever arm compensation element 3000 is a column element. In this case, the structures of the receiving groove 2100a and the lever arm compensation element 3000 match each other, so that the lever arm compensation element 3000 can be assembled in the receiving groove 2100a in a matching manner. In addition, in one embodiment, a plurality of receiving grooves 2100a have different inner diameters, and a plurality of lever arm compensation elements 3000 have different outer diameters, wherein each receiving groove 2100a is used to match a lever arm compensation element 3000, and the inner diameter of each receiving groove 2100a is the same as the outer diameter of the matching lever arm compensation element 3000.

[0057] The jack handle 2000 can be constructed as a circular ring structure, a square ring structure, or other regular or irregular ring structures, etc. Therefore, the inner ring space 2000a of the jack handle 2000 can also be constructed as a circular, square, or other regular or irregular shapes, etc. In one embodiment, a portion of the through space in the inner ring space 2000a of the jack handle 2000 can be reserved as the gripping unit space 2000a1, that is, the space occupied by all the accommodating grooves 2100a of the snap-fit ​​assembly part 2100 only occupies a portion of the entire inner ring space 2000a, and at this time, the gripping unit space 2000a1 and the space occupied by all the accommodating grooves 2100a of the snap-fit ​​assembly part 2100 together constitute the inner ring space 2000a of the jack handle 2000. The gripping unit space 2000a1 formed therein can be used to insert fingers, so that the user can hold the jack handle 2000.

[0058] In one embodiment, the jack handle 2000 is provided with at least one connection assembly part 2200, and the jack handle 2000 is connected to the jack body 1000 through the connection assembly part 2200. Among them, the connection assembly part 2200 can be a variety of connection forms such as threaded connection, clamping connection, adhesive connection, etc., which are not limited here. In one embodiment, the jack body 1000 also includes a main body base 1300, the lifting main body 1100 and the driving main body 1200 are both arranged on the main body base 1300, the number of the connection assembly parts 2200 is set to two, the jack handle 2000 is connected to the lifting main body 1100 through one connection assembly part 2200, and the jack handle 2000 is connected to the main body base 1300 through another connection assembly part 2200.

[0059] In one embodiment, the jack body 1000 further includes an auxiliary gripping element 1000a, which is a curved element, one end of which is connected to the lifting body 1100, and the other end of which is connected to the main body base 1300. The auxiliary gripping element 1000a is enclosed between the lifting body 1100 and the main body base 1300 to form an auxiliary gripping space 1000a1. At this time, the auxiliary gripping space 1000a1 can be used to insert the thumb, and correspondingly, the remaining four fingers can be inserted into the gripping unit space 2000a1 of the inner ring space 2000a, thereby achieving gripping of the jack body 1000.

[0060] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A vertical jack, characterized in that: The vertical jack comprises: A jack body, the jack body comprising a lifting body part and a driving body part, the driving body part being connected to the lifting body part; A jack handle, the jack handle is connected to the jack body, the jack handle is provided with a snap-fit ​​assembly portion, wherein the snap-fit ​​assembly portion includes a receiving groove and a limiting protrusion, the limiting protrusion is arranged at the notch position of the receiving groove, the receiving groove is used to accommodate a lever arm compensation element, the limiting protrusion is used to make limiting contact with the lever arm compensation element, and is used to limit the lever arm compensation element from disengaging from the receiving groove, and the lever arm compensation element is used to be drivingly connected to the driving body portion.

2. The vertical jack according to claim 1, characterized in that: The jack handle has a through inner ring space, and the clamping assembly portion is arranged on the inner wall of the inner ring space of the jack handle; Alternatively, the snap-fit ​​assembly portion is arranged on an outer side wall of the jack handle.

3. The vertical jack according to claim 2, characterized in that: The number of the accommodating grooves is several, and the several accommodating grooves are arranged on the inner wall of the inner ring space of the jack handle along the circumference of the inner ring space, and each of the accommodating grooves is used to accommodate one of the force arm compensation elements.

4. The vertical jack according to claim 3, characterized in that: The number of the limiting protrusions is several, and the several limiting protrusions are all located on the inner wall of the inner ring space of the jack handle, and two relative limiting protrusions are arranged at the notch position of each accommodating groove.

5. The vertical jack according to claim 3, characterized in that: The accommodating groove is a circular groove, and the lever arm compensation element is a column element.

6. The vertical jack according to claim 5, characterized in that: Several of the accommodating grooves have different inner diameter sizes, and several of the lever arm compensation elements have different outer diameter sizes, wherein each of the accommodating grooves is used to match a lever arm compensation element, and the inner diameter size of each of the accommodating grooves is the same as the outer diameter size of the matching lever arm compensation element.

7. The vertical jack according to claim 3, characterized in that: A portion of the through space in the inner ring space of the jack handle is a gripping unit space, and the gripping unit space and the space occupied by all the accommodating grooves of the snap-fit ​​assembly portion together constitute the inner ring space of the jack handle.

8. The vertical jack according to claim 1, characterized in that: The jack handle is provided with at least one connecting and assembling portion, and the jack handle is connected to the jack body via the connecting and assembling portion.

9. The vertical jack according to claim 8, characterized in that: The jack body also includes a main body base, the lifting main body part and the driving main body part are both arranged on the main body base, the number of the connecting assembly parts is set to two, the jack handle is connected to the lifting main body part through one of the connecting assembly parts, and the jack handle is connected to the main body base through another of the connecting assembly parts.

10. The vertical jack according to claim 9, characterized in that: The jack body also includes an auxiliary holding element, which is a curved element. One end of the auxiliary holding element is connected to the lifting body, and the other end of the auxiliary holding element is connected to the body base. The auxiliary holding element encloses an auxiliary holding space between the lifting body and the body base.

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