Horizontal jack and vehicle assembling equipment

Abstract

The embodiment of the utility model relates to the technical field of vehicles, and discloses a horizontal jack and vehicle assembling equipment. The horizontal jack comprises a base, a rod body assembly, a transmission mechanism and a handle. The base is suitable for being horizontally arranged, a containing cavity is limited by the base, a telescopic opening communicated with the containing cavity is formed in one end, in the axial direction, of the base, and an operation opening communicated with the containing cavity is formed in the side wall of the base; the rod body assembly is arranged in the containing cavity in the axial direction in a telescopic mode through the telescopic opening. The transmission mechanism is arranged in the containing cavity, the transmission mechanism is in transmission fit with the rod body assembly, and the transmission mechanism is opposite to the operation opening; the handle is arranged at the operation opening and is in transmission connection with the transmission mechanism so as to drive the rod body assembly to stretch out and draw back through the transmission mechanism. By means of the supporting and positioning functions of the horizontal jack, it is guaranteed that the left longitudinal beam assembly and the right longitudinal beam assembly keep constant spacing and angle in the assembling process, the left longitudinal beam assembly and the right longitudinal beam assembly are prevented from deforming in the assembling process, installation of an auxiliary frame is guaranteed, and assembling precision and efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a horizontal jack and vehicle assembly equipment. Background Technology

[0002] Automobile assembly is one of the most important technological processes in automobile manufacturing, involving the assembly of several parts into a complete vehicle according to certain technical requirements.

[0003] During the prototype manufacturing process of automobiles, the engine compartment assembly is prone to deformation of the left and right longitudinal beam assemblies due to reasons such as low precision in the early stages of assembly. This leads to a smaller distance between the left and right longitudinal beam assemblies, which in turn reduces the distance between the front subframe mounting points, and may even prevent the subframe from being installed. Utility Model Content

[0004] In view of this, this application provides a horizontal jack and vehicle assembly equipment to solve the problem of deformation of the left and right longitudinal beam assemblies in the early stage of existing engine compartment assembly, which may even lead to the inability to install the subframe.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] On one hand, embodiments of this application provide a horizontal jack, including:

[0007] A base, the base being adapted to be horizontally positioned, the base defining a receiving cavity, one axial end of the base being provided with a telescopic opening communicating with the receiving cavity, and the sidewall of the base being provided with an operating opening communicating with the receiving cavity;

[0008] A rod assembly is retractably disposed in the receiving cavity along the axial direction and via the telescopic port;

[0009] A transmission mechanism is disposed within the receiving cavity, the transmission mechanism is in transmission cooperation with the rod assembly, and the transmission mechanism is opposite to the operating port;

[0010] A handle is provided at the operating port, and the handle is connected to the transmission mechanism to drive the rod assembly to extend or retract through the transmission mechanism.

[0011] In one possible implementation, the rod assembly includes:

[0012] A transmission rod, one end of which is connected to the transmission mechanism;

[0013] A guide rod is connected to the other end of the transmission rod, and the guide rod is movable relative to the transmission rod to extend and retract via the telescopic port.

[0014] In one possible implementation, the handle is adapted to drive the transmission mechanism to rotate, and the rod assembly is configured to convert the rotation of the transmission mechanism into axial movement of the guide rod.

[0015] In one possible implementation, the transmission rod is a threaded rod, and the guide rod is sleeved on the threaded rod and threadedly engaged with it.

[0016] In one possible implementation, one of the inner wall of the receiving cavity and the outer wall of the guide rod is provided with a guide structure, and the other is provided with a guide engagement structure. The guide rod and the base are guided and engaged through the guide structure and the guide engagement structure.

[0017] In one possible implementation, the outer wall of the guide rod is provided with a guide groove, which constitutes the guide structure, and the inner wall of the receiving cavity is provided with a guide block, which constitutes the guide mating structure.

[0018] In one possible implementation, the rod assembly further includes a movable strut, which is detachably connected to the guide rod.

[0019] In one possible implementation, the transmission mechanism includes a first helical gear and a second helical gear. The first helical gear is rotatably disposed at one end of the receiving cavity opposite to the telescopic opening, and the second helical gear is disposed at the operating opening. The first helical gear and the second helical gear mesh with each other. The rod assembly is fixedly connected to the first helical gear, and the second helical gear is throttle connected to the handle to rotate under the drive of the handle.

[0020] In one possible implementation, the cavity wall at one end opposite to the telescopic opening has a rotation space. The first helical gear includes a toothed portion and a rod portion, the rod portion being rotatably disposed in the rotation space. The transmission mechanism further includes a transmission bearing, the inner ring of which is sleeved on the rod portion, and the outer ring of which is interference-fitted with the inner wall of the rotation space.

[0021] On the other hand, embodiments of this application also provide a vehicle assembly device, including a horizontal jack as described in any of the above possible implementations.

[0022] This application provides a horizontal jack and vehicle assembly equipment. Supported by the horizontal jack, the left and right longitudinal beam assemblies are assembled according to preset positions. The horizontal jack provides stable support, preventing deformation of the left and right longitudinal beam assemblies during assembly. After ensuring that the spacing between the left and right longitudinal beam assemblies and the spacing between the front subframe mounting points meet the requirements, the front subframe can be installed. Through the support and positioning functions of the horizontal jack, a constant spacing and angle of the left and right longitudinal beam assemblies are maintained during assembly, preventing deformation or twisting and improving assembly accuracy and efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the horizontal jack according to an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the horizontal jack according to an embodiment of the present utility model;

[0025] Figure 3 This is an exploded structural diagram of the horizontal jack according to an embodiment of the present invention;

[0026] Figure 4 This is an assembly diagram of the horizontal jack and vehicle assembly equipment according to an embodiment of the present utility model.

[0027] Figure label:

[0028] 10 - Left longitudinal beam assembly; 20 - Right longitudinal beam assembly; 30 - Front subframe;

[0029] 100 - Base; 110 - Receiving cavity; 111 - Guide block; 120 - Telescopic port; 130 - Operating port;

[0030] 200 - Rod assembly; 210 - Transmission rod; 220 - Guide rod; 221 - Guide groove; 230 - Movable support rod;

[0031] 300 - Transmission mechanism; 310 - First helical gear; 320 - Second helical gear; 330 - Transmission bearing;

[0032] 400-handle;

[0033] 510 - Guide structure; 520 - Guide mating structure. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0035] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0036] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0037] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0038] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0039] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0040] Automobile assembly is one of the most important technological processes in automobile manufacturing, involving the assembly of several parts into a complete vehicle according to certain technical requirements.

[0041] During the prototype manufacturing process of automobiles, the engine compartment assembly is prone to deformation of the left and right longitudinal beam assemblies due to reasons such as low precision in the early stages of assembly. This leads to a smaller distance between the left and right longitudinal beam assemblies, which in turn reduces the distance between the front subframe mounting points, and may even prevent the subframe from being installed.

[0042] In view of this, the present application provides a horizontal jack and vehicle assembly equipment. Through the support and positioning functions of the horizontal jack, it ensures that the left and right longitudinal beam assemblies maintain a constant spacing and angle during the assembly process, preventing deformation or twisting of the left and right longitudinal beam assemblies during the assembly process, and improving assembly accuracy and assembly efficiency.

[0043] In the first aspect, this application provides a horizontal jack that can be used for vehicle assembly. The vehicle can refer to a car, truck, bus, etc. For example, the car in this application can be a sedan, SUV (sports utility vehicle), MPV (multipurpose passenger vehicle), sports car, commercial vehicle, etc.; the truck in this application can be a light truck, medium truck, and heavy truck, etc.

[0044] refer to Figures 1 to 4 The horizontal jack may include a base 100, a rod assembly 200, a transmission mechanism 300, and a handle 400. The base 100 is adapted to be horizontally positioned to support the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20 in the horizontal direction. The base 100 defines a receiving cavity 110. One axial end of the base 100 has a telescopic port 120 communicating with the receiving cavity 110, allowing the rod assembly 200 to extend and retract. The sidewall of the base 100 has an operating port 130 communicating with the receiving cavity 110, suitable for operating the transmission mechanism 300 through the operating port 130.

[0045] The rod assembly 200 is axially and telescopically disposed in the receiving cavity 110 via the telescopic port 120. This design allows the horizontal jack to be length-adjusted, and by adjusting its telescopic length, it can support the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20 at different distances.

[0046] A transmission mechanism 300 is located within the receiving cavity 110. The transmission mechanism 300 is in transmission cooperation with the rod assembly 200 and faces the operating port 130. A handle 400 is located at the operating port 130 and is transmissionally connected to the transmission mechanism 300, thereby driving the rod assembly 200 to extend and retract. Through the rotational movement of the handle 400, the transmission mechanism 300 can drive the rod assembly 200 to extend and retract, realizing the telescopic function of the jack.

[0047] With the support of a horizontal jack, the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20 are assembled according to the preset positions. The horizontal jack provides stable support, preventing deformation of the left and right longitudinal beam assemblies 10 and 20 during assembly. After ensuring that the spacing between the left and right longitudinal beam assemblies 10 and 20 and the spacing between the mounting points of the front subframe 30 meet the requirements, the installation of the front subframe 30 can be carried out. Through the support and positioning functions of the horizontal jack, the left and right longitudinal beam assemblies 10 and 20 maintain a constant spacing and angle during assembly, preventing deformation or twisting of the left and right longitudinal beam assemblies 10 and 20 during assembly, thus improving assembly accuracy and efficiency.

[0048] Furthermore, compared to traditional hydraulic jacks, the horizontal jack provided in this application embodiment can be used horizontally. In some situations, such as when the assembly space is narrow, traditional hydraulic jacks may not be able to operate smoothly due to size and shape limitations. However, the horizontal jack in this application embodiment, due to its horizontal use feature, can flexibly adapt to certain space limitations and ensure its versatility.

[0049] In some embodiments, reference Figure 2 and Figure 3 The rod assembly 200 includes a transmission rod 210 and a guide rod 220. One end of the transmission rod 210 is connected to the transmission mechanism 300, and its rotational movement is achieved by the drive of the transmission mechanism 300. For example, the transmission rod 210 can be made of high-strength alloy steel or stainless steel. Optionally, the connection method between the transmission rod 210 and the transmission mechanism 300 can include threaded connection, keyed connection, or splined connection to ensure stable transmission between the two.

[0050] The guide rod 220 is connected to the other end of the transmission rod 210. The guide rod 220 is movable relative to the transmission rod 210 to extend and retract via the telescopic port 120. Optionally, the guide rod 220 may adopt a slide rail, sliding sleeve, or other structure to ensure stable movement during the extension and retraction process.

[0051] When the user rotates the transmission mechanism 300 via the handle 400, the transmission mechanism 300 drives the transmission rod 210 to rotate. Driven by the transmission rod 210, the guide rod 220 extends and retracts within the base 100 through the telescopic port 120 to adjust the overall length of the horizontal jack. During assembly, the rod assembly 200 adjusts the length of the horizontal jack by extending and retracting the guide rod 220 according to the distance between the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20. This ensures a constant distance between the left and right longitudinal beam assemblies 10 and 20, improves assembly accuracy, and prevents deformation of the left and right longitudinal beam assemblies 10 and 20.

[0052] In some embodiments, reference Figure 1 and Figure 3 The handle 400 is adapted to drive the transmission mechanism 300 to rotate, and the rod assembly 200 is configured to convert the rotation of the transmission mechanism 300 into the axial movement of the guide rod 220. When the user needs to adjust the height of the jack, he only needs to rotate the handle 400. The rotational movement of the handle 400 is converted into the rotation of the transmission rod 210 through the transmission mechanism 300, which in turn drives the guide rod 220 to move axially, realizing the length adjustment of the horizontal jack and improving the efficiency and convenience of adjustment.

[0053] In some embodiments, reference Figure 2 and Figure 3 The transmission rod 210 is a threaded rod, and the guide rod 220 is sleeved on the threaded rod and threadedly engaged with it. When the user needs to adjust the height of the jack, the handle 400 is rotated. The handle 400 drives the threaded rod to rotate through the transmission mechanism 300. Since the guide rod 220 and the threaded rod are threadedly engaged, the rotation of the threaded rod will cause the guide rod 220 to move axially, thus realizing the length adjustment of the horizontal jack.

[0054] The threaded fit design makes the connection between the transmission rod 210 and the guide rod 220 tighter and more stable, enabling the horizontal jack to maintain accuracy and stability during the lifting process and improving the lifting efficiency of the jack. In addition, the threaded fit also has a certain degree of self-locking. Without the application of external force, the threaded rod and the guide rod 220 will not separate or move on their own, ensuring that the horizontal jack maintains a stable support state under load and improving its reliability.

[0055] In some embodiments, reference Figure 2 and Figure 3 One of the inner wall of the receiving cavity 110 and the outer wall of the guide rod 220 is provided with a guide structure 510, and the other is provided with a guide mating structure 520. The guide rod 220 and the base 100 are guided and mated through the guide structure 510 and the guide mating structure 520. For example, the guide structure 510 can be designed as a slide rail, flange, guide groove 221, etc., to provide a stable guide path. Correspondingly, the guide mating structure 520 can be a sleeve, groove, guide wheel, etc., to match the guide structure 510.

[0056] When the guide rod 220 moves in and out of the receiving cavity 110, the guide structure 510 and the guide mating structure 520 cooperate to ensure that the guide rod 220 can move along the preset trajectory and to prevent the guide rod 220 from deviating or shaking during the movement.

[0057] By introducing the design of guide structure 510 and guide cooperation structure 520, it is ensured that the guide rod 220 can move along the preset direction during the jacking process, preventing the guide rod 220 from deviating or shaking during the movement, thereby reducing friction and wear, improving the jacking accuracy and stability of the horizontal jack, and extending the service life of the horizontal jack.

[0058] In some embodiments, reference Figure 2 and Figure 3 The outer wall of the guide rod 220 is provided with a guide groove 221, which constitutes a guide structure 510. The inner wall of the receiving cavity 110 is provided with a guide block 111, which constitutes a guide mating structure 520. The guide groove 221 is used to provide a stable guide path, ensuring that the guide rod 220 can move along a preset trajectory during extension and retraction. The guide block 111 is used to cooperate with the guide groove 221 to achieve cooperation and sliding between the two.

[0059] When the guide rod 220 extends and retracts within the receiving cavity 110, the cooperation between the guide groove 221 and the guide block 111 ensures that the guide rod 220 can move smoothly along the preset trajectory. In addition, the interaction between the guide groove 221 and the guide block 111 prevents the guide rod 220 from deviating or shaking during the movement.

[0060] In some embodiments, reference Figure 1 , Figure 2 and Figure 3 The rod assembly 200 also includes a movable support rod 230, which is detachably connected to the guide rod 220. Specifically, one end of the movable support rod 230 can be detachably connected to the guide rod 220, while the other end is used for lifting operations. For example, the detachable connection structure can be a threaded connection, a snap-fit ​​connection, or a pin connection. This detachable connection design between the movable support rod 230 and the guide rod 220 allows users to install or remove the movable support rod 230, simplifying the use and maintenance of the horizontal jack.

[0061] In some embodiments, reference Figure 2 and Figure 3 The transmission mechanism 300 includes a first helical gear 310 and a second helical gear 320. The first helical gear 310 is rotatably disposed at one end of the receiving cavity 110 opposite to the telescopic opening 120. The second helical gear 320 is disposed at the operating opening 130. The first helical gear 310 and the second helical gear 320 mesh with each other. The rod assembly 200 is fixedly connected to the first helical gear 310. The second helical gear 320 is drivenly connected to the handle 400 so as to rotate under the drive of the handle 400.

[0062] Specifically, the user can drive the second helical gear 320 to rotate by rotating the handle 400. Since the second helical gear 320 meshes with the first helical gear 310, the rotation of the second helical gear 320 will drive the first helical gear 310 (and the rod assembly 200 fixed thereto) to rotate. When the first helical gear 310 rotates, it can drive the rod assembly 200 to extend and retract. In this way, by introducing the cooperative design of the first helical gear 310 and the second helical gear 320, the efficiency and stability of the transmission mechanism 300 of the horizontal jack are ensured.

[0063] In some embodiments, reference Figure 2 The cavity wall at one end of the receiving cavity 110 opposite to the telescopic opening 120 is provided with a rotation space. The first helical gear 310 includes a tooth and a rod. The rod is rotatably disposed in the rotation space. The design of the rotation space ensures that the first helical gear 310 will not interfere with other parts of the receiving cavity 110 during rotation, thereby ensuring the stability and reliability of the transmission.

[0064] The transmission mechanism 300 also includes a transmission bearing 330. The inner ring of the transmission bearing 330 is fitted onto the rod portion, and the outer ring of the transmission bearing 330 is interference-fitted with the inner wall of the rotation space. The transmission bearing 330 supports the rod portion of the first helical gear 310 and reduces its friction and wear during rotation, thereby improving the stability of the first helical gear 310 during rotation. By introducing the rotation space, the rod portion design of the first helical gear 310, and the support of the transmission bearing 330, the high efficiency and stability of the transmission mechanism 300 of the horizontal jack are ensured.

[0065] Secondly, embodiments of this application provide a vehicle assembly device, which can be used for vehicle assembly. The vehicle can refer to automobiles, trucks, buses, etc. For example, the automobile in this application can be a sedan, SUV (sports utility vehicle), MPV (multi-purpose passenger vehicle), sports car, commercial vehicle, etc.; the truck in this application can be a light truck, medium truck, and heavy truck, etc.

[0066] refer to Figures 1 to 4 The vehicle assembly equipment includes the horizontal jack in any of the above embodiments. (Referring to...) Figure 4 The vehicle may include a left longitudinal beam assembly 10, a right longitudinal beam assembly 20 and a front subframe 30. Horizontal jacks support the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20 respectively. The front subframe 30 is used to install between the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20.

[0067] By designing a horizontal jack, the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20 are assembled in their preset positions under the support of the horizontal jack. The horizontal jack provides stable support, preventing deformation of the left and right longitudinal beam assemblies 10 and 20 during assembly. After ensuring that the spacing between the left and right longitudinal beam assemblies 10 and 20 and the spacing between the mounting points of the front subframe 30 meet the requirements, the installation of the front subframe 30 can be carried out. Through the support and positioning functions of the horizontal jack, the left and right longitudinal beam assemblies 10 and 20 maintain a constant spacing and angle during assembly, preventing deformation or twisting of the left and right longitudinal beam assemblies 10 and 20 during assembly, ensuring the assembly space of the front subframe 30, and improving assembly accuracy and efficiency.

[0068] In addition, if the distance between the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20 is too small during the assembly process, the distance between the left longitudinal beam assembly 10 and the right longitudinal beam assembly 20 can be precisely adjusted by adjusting the length of the horizontal jack with threads to meet the problem of insufficient assembly space of the front subframe 30.

[0069] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A horizontal jack, characterized in that, The utility model relates to a telescopic handle assembly, comprising: a base (100) adapted to be horizontally arranged, the base (100) defining a receiving cavity (110), the base (100) being provided with a telescopic opening (120) in communication with the receiving cavity (110) at one end along an axial direction, a side wall of the base (100) being provided with an operation opening (130) in communication with the receiving cavity (110); a rod assembly (200) telescopically arranged in the receiving cavity (110) along the axial direction via the telescopic opening (120); a transmission mechanism (300) arranged in the receiving cavity (110), the transmission mechanism (300) being in driving cooperation with the rod assembly (200), the transmission mechanism (300) being opposite to the operation opening (130); a handle (400) arranged at the operation opening (130), the handle (400) being in driving connection with the transmission mechanism (300) to drive the rod assembly (200) to telescope via the transmission mechanism (300).

2. The horizontal jack of claim 1, wherein The rod assembly (200) comprises: a transmission rod (210) having one end connected with the transmission mechanism (300); a guide rod (220) connected with the other end of the transmission rod (210), the guide rod (220) being movable relative to the transmission rod (210) to telescope via the telescopic opening (120).

3. The horizontal jack of claim 2, wherein, The handle (400) is adapted to drive the transmission mechanism (300) to rotate, and the rod assembly (200) is configured to convert the rotation of the transmission mechanism (300) into the axial movement of the guide rod (220).

4. The horizontal jack of claim 3, wherein The transmission rod (210) is a threaded rod, and the guide rod (220) is sleeved on the threaded rod and threadedly cooperates with the threaded rod.

5. The horizontal jack of claim 2, wherein, One of an inner wall of the receiving cavity (110) and an outer wall of the guide rod (220) is provided with a guide structure (510), and the other is provided with a guide cooperation structure (520), and the guide rod (220) and the base (100) are guided and cooperated by the guide structure (510) and the guide cooperation structure (520).

6. A horizontal jack as claimed in claim 5, characterised in that The outer wall of the guide rod (220) is provided with a guide groove (221) constituting the guide structure (510), and the inner wall of the receiving cavity (110) is provided with a guide block (111) constituting the guide cooperation structure (520).

7. A horizontal jack as claimed in any one of claims 2 to 6, wherein, The rod assembly (200) further comprises a movable support rod (230) detachably connected with the guide rod (220).

8. A horizontal jack as claimed in any one of claims 1 to 6, characterized in that The transmission mechanism (300) comprises a first bevel gear (310) and a second bevel gear (320), the first bevel gear (310) is rotatably arranged at one end of the accommodating cavity (110) opposite to the telescopic opening (120), the second bevel gear (320) is arranged at the operation opening (130), the first bevel gear (310) and the second bevel gear (320) are mutually engaged, the rod body assembly (200) is fixedly connected with the first bevel gear (310), and the second bevel gear (320) is drivingly connected with the handle (400) to rotate under the driving of the handle (400).

9. A horizontal jack as claimed in claim 8, characterised in that One end cavity wall of the accommodating cavity (110) opposite to the telescopic opening (120) is provided with a rotating space, the first bevel gear (310) comprises a tooth part and a rod part, the rod part is rotatably arranged in the rotating space, and the transmission mechanism (300) further comprises a transmission bearing (330), a bearing inner ring of the transmission bearing (330) is sleeved on the rod part, and a bearing outer ring of the transmission bearing (330) is in interference fit with an inner wall of the rotating space.

10. An assembling apparatus of a vehicle, characterized by comprising: Comprise: The horizontal jack of any one of claims 1-9.

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