Motor vehicle fixing and locking mechanism

Abstract

The invention relates to the technical field of motor vehicle body locking assemblies, in particular to a motor vehicle fixing and locking mechanism which comprises a supporting stand column, a movable platform and a lifting sliding block, a strip-shaped toothed plate is fixedly connected to the rear surface of the supporting stand column, and a back plate is slidably connected to the right side face of the lifting sliding block. An auxiliary mechanism used for temporarily limiting the movable platform is arranged on the front surface of the back plate, the front surface of the back plate is rotationally connected with a connecting cylinder through two connecting frames, and the inner side of the connecting cylinder is rotationally connected with a pawl through a connecting roller. A separation mechanism facilitating separation of the pawl and the strip-shaped toothed plate when limiting of the movable platform is cancelled is arranged on the front surface of the back plate and located on the left side of the connecting cylinder, and the back plate can drive the pawl to move up and down after limiting of the movable platform is completed, so that the bottom end of the pawl can be kept attached to the tooth groove position of the strip-shaped toothed plate; and the limiting and locking of the movable platform are more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of motor vehicle body locking components, in particular to a motor vehicle fixing and locking mechanism. Background Art

[0002] At present, many motor vehicle bodies are usually equipped with a double-deck platform for loading cargo. The lower platform is a fixed platform installed on the body pillar, and the upper platform is a liftable movable platform installed on the body pillar. When loading cargo, the cargo on the upper platform is loaded first, and the hydraulic system is operated to lower the upper platform of the body to a suitable height, and the tail end is adjusted from a horizontal state to an inclined state to facilitate loading of cargo. After completing the loading of cargo on the upper platform of the body, the hydraulic system is operated again to raise the upper platform of the body to a suitable height, and then the cargo on the lower platform of the body is loaded. After the upper platform of the body is adjusted to a horizontal state, the upper platform is locked and limited on the body pillar by a locking mechanism to ensure the stability of the upper platform of the body during transportation.

[0003] Currently, there are many locking methods for motor vehicle body pillars, such as mechanical latch type and pawl ratchet type. When the pawl and ratchet are used to fix and lock the upper platform of the body, the pawl cooperates with a bar-shaped toothed plate with unidirectional inclined teeth, and the hydraulic system controls the pawl to move away from or close to the bar-shaped toothed plate. When fixed locking is required, the hydraulic system controls the pawl to approach the bar-shaped toothed plate. After the upper platform of the body drives the pawl to move to the position of the bar-shaped toothed plate, the pawl engages with the toothed plate, and cooperates with the upward-inclined teeth of the toothed plate so that the pawl can only move in one direction upward, thereby fixing and locking the upper platform of the body.

[0004] When the pawl and the bar gear are engaged, the pawl is pulled to a position between the two teeth of the bar gear plate to cancel the fixed lock, so the pawl needs to be driven to move upward continuously until it is disengaged from the bar gear plate. The efficiency of canceling the fixed lock is not high, resulting in a poor effect of the limit locking mechanism.

[0005] Therefore, the present invention provides a motor vehicle fixing and locking mechanism to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a motor vehicle fixing locking mechanism, comprising a supporting column, a movable platform for loading cargo and a lifting slider, wherein the rear surface of the supporting column is fixedly connected to a strip tooth plate, the right side of the lifting slider is slidably connected to a back plate, and the front surface of the back plate is provided with an auxiliary mechanism for temporarily limiting the movable platform, the front surface of the back plate is rotatably connected to a connecting cylinder through two connecting frames, the inner side of the connecting cylinder is rotatably connected to a pawl through a connecting roller, the front surface of the back plate and located on the left side of the connecting cylinder are provided with a disengagement mechanism that facilitates the separation of the pawl and the strip tooth plate when the limit on the movable platform is cancelled, the front surface of the back plate and located on the right side of the connecting cylinder are provided with a pressing mechanism that makes the pawl and the strip tooth plate stick together when the movable platform is limited, and the axis position of the connecting roller is splined with a key shaft.

[0007] The disengagement mechanism includes a force member arranged on the back plate for applying a reverse force to the key shaft away from the bar tooth plate, and a stabilizing member and a transmission member are arranged on the front surface of the back plate for driving the force member to generate a reverse force away from the bar tooth plate.

[0008] The force-adding member includes a fixing seat three fixedly connected to the front surface of the back plate, the right side of the fixing seat three is rotatably connected to a turntable three, and the left side of the fixing seat three is rotatably connected to a turntable two.

[0009] According to an embodiment of the present invention, the right side of the back plate is slidably connected to the right side of the lifting slider in the up and down directions through a connecting plate, the right side of the connecting plate is fixedly connected to a hydraulic cylinder 1, the telescopic end of the hydraulic cylinder 1 is fixedly connected to a limit plate, the front end of the limit plate is fixedly connected to the rear surface of the lifting slider, the rear surface of the back plate is hinged with a hydraulic cylinder 2, and the telescopic end of the hydraulic cylinder bar tooth plate is hinged to the rear end of the bar tooth plate.

[0010] According to an embodiment of the present invention, a through slot is provided on the connecting cylinder at a position corresponding to the pawl, and the pawl passes through the through slot and is engaged with the bar-shaped tooth plate.

[0011] According to an embodiment of the present invention, a spline groove one is provided at the center position of the turntable three, and a torsion spring is provided inside the turntable three. The right end of the torsion spring is fixedly connected to the left side of the turntable three, and the left end of the torsion spring is fixedly connected to the right side of the turntable two.

[0012] According to an embodiment of the present invention, the stabilizing member includes a fixing seat 2 fixedly connected to the front surface of the back panel, the inner side of the fixing seat 2 is rotatably connected to a synchronous turntable, the left side of the synchronous turntable is fixedly connected to a gear disk through a plurality of connecting columns 1, and the right side of the gear disk is fixedly connected to the left side of the turntable 2 through a plurality of connecting columns 2.

[0013] According to an embodiment of the present invention, the stabilizing member also includes a guide rod slidably connected to the upper surface of the fixed seat 2 through a limiting sleeve. The guide rod is a 匚-shaped structure. The horizontal section on the upper side of the guide rod is slidably connected to the limiting sleeve. The left end of the key shaft passes through the gear plate. The horizontal section on the lower side of the guide rod is rotatably connected to the left end of the key shaft. An auxiliary sleeve is rotatably connected to the middle position of the vertical section of the guide rod.

[0014] According to an embodiment of the present invention, the transmission member includes a support seat fixedly connected to the left side of the back plate, and an adjustment push rod and a rack are elastically slidably connected to the support seat along the front and rear directions through a connecting block. A phase-changing wheel group is fixedly connected to the left side of the back plate and located above the support seat, and a steel cable is wrapped around the phase-changing wheel group.

[0015] According to an embodiment of the present invention, the auxiliary mechanism includes two left-right symmetrical limit frames fixedly connected to the front surface of the back panel, and a movable sliding sleeve is slidably connected to the limit frame along the front-back direction, and an elastic retractable plate is fixedly connected between the opposite surfaces of the two movable sliding sleeves.

[0016] According to an embodiment of the present invention, the clamping mechanism includes a fixing seat 1 fixedly connected to the front surface of the back plate, the left side of the fixing seat 1 is rotatably connected to a turntable 1, and the right side of the fixing seat 1 is fixedly connected to a telescopic spring seat.

[0017] According to an embodiment of the present invention, a spline groove 2 is provided at the center of the turntable 1, and a clockwork spring is provided inside the fixed seat 1. One end of the clockwork spring is fixedly connected to the left inner wall of the fixed seat 1, and the other end of the clockwork spring is fixedly connected to the right side of the turntable 1.

[0018] The technical solution of the present invention is as follows: 1. The back plate in the present invention can drive the pawl to move up and down after completing the limitation of the movable platform, so that the bottom end of the pawl can maintain contact with the tooth groove position of the bar tooth plate, so that the limiting locking of the movable platform is more stable; the stabilizing part cooperates with the transmission part to apply elastic force to the pawl through the force-applying part before the pawl cancels the limitation. When the pawl is not limited, the elastic force drives the pawl to rotate in the direction away from the bar tooth plate, so that the pawl can quickly separate from the bar tooth plate to cancel the limiting effect; from the two aspects of stability during limitation and rapid separation when canceling the limitation, the present invention not only improves the safety of the movable platform, but also improves the convenience of use of the present invention.

[0019] 2. The pawl is driven to move by the back plate. After the movable platform is adjusted to the required horizontal position, the back plate drives the pawl to move downward, so that the pawl and the strip tooth plate are tightly engaged, avoiding the formation of a gap between the bottom end of the pawl and the tooth groove on the strip tooth plate. When the pawl receives downward pressure, the gap causes the pawl to move downward, generating an impact force on the teeth of the strip tooth plate, affecting the limiting stability of the strip tooth plate.

[0020] 3. Through the setting of the auxiliary mechanism, before the limit is cancelled, the elastic telescopic plate is first moved toward the strip tooth plate for temporary limit, and then the turntable 2 is driven to rotate by the elastic telescopic plate in conjunction with the stabilizing part and the transmission part, and the torsion spring and the turntable 3 apply elastic force to the pawl, so that the pawl can quickly rotate away from the strip tooth plate after being free from the limit of the strip tooth plate. When the movable platform needs to be adjusted to an inclined state, the limit on the movable platform can be quickly released. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the specific installation position of the motor vehicle fixing and locking mechanism provided by the present invention on the motor vehicle body.

[0023] Figure 2 The present invention provides Figure 1 Enlarged view of part A.

[0024] Figure 3 This is one of the three-dimensional structural schematic diagrams of the motor vehicle fixing and locking mechanism provided by the present invention.

[0025] Figure 4 This is the second three-dimensional structural schematic diagram of the motor vehicle fixing and locking mechanism provided by the present invention.

[0026] Figure 5 It is a schematic diagram of the cooperation between the connecting cylinder and the pawl provided by the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the approaching mechanism and the disengaging mechanism provided by the present invention.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the auxiliary mechanism provided by the present invention.

[0029] Figure 8 This is one of the three-dimensional structural schematic diagrams of the transmission component and the force-applying component of a motor vehicle provided by the present invention.

[0030] Figure 9 This is the second schematic diagram of the three-dimensional structure of the transmission component and the force-applying component of a motor vehicle provided by the present invention.

[0031] Figure 10 This is a schematic diagram of the three-way coordination of the key shaft and the turntable provided by the present invention.

[0032] Figure 11 It is a schematic diagram of the change in the matching state of the adjustment push rod and the guide rod provided by the present invention.

[0033] Figure 12 It is a schematic diagram of the installation position of the torsion spring provided by the present invention.

[0034] Reference numerals: 1, back plate; 2, toothed plate; 3, auxiliary mechanism; 4, disengagement mechanism; 5, connecting cylinder; 6, ratchet; 7, pressing mechanism; 8, key shaft; 9, connecting plate; 10, hydraulic cylinder 1; 11, hydraulic cylinder 2; 31, limit frame; 32, movable sleeve; 33, elastic expansion plate; 34, hydraulic cylinder 3; 41, stabilizing member; 42, transmission member; 43, force member; 71, turntable 1; 7 2. Telescopic spring seat; 73. Fixed seat 1; 411. Guide rod; 412. Sprocket; 413. Fixed seat 2; 414. Synchronous turntable; 421. Phase-changing wheel set; 422. Steel cable; 423. Support seat; 424. Adjusting push rod; 425. Rack; 431. Fixed seat 3; 432. Turntable 2; 433. Turntable 3; 100. Support column; 200. Movable platform; 300. Lifting slider. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, a motor vehicle fixing and locking mechanism includes a support column 100, a movable platform 200 for loading cargo, and a lifting slider 300. The rear surface of the support column 100 is fixedly connected to a strip-shaped toothed plate 2. The right side of the lifting slider 300 is slidably connected to a back plate 1. The front surface of the back plate 1 is provided with an auxiliary mechanism 3 for temporarily limiting the movable platform 200. The front surface of the back plate 1 is rotatably connected to a connecting cylinder 5 through two connecting frames. The inner side of the connecting cylinder 5 is rotatably connected to a pawl 6 through a connecting roller. A position corresponding to the pawl 6 is provided on the connecting cylinder 5. There is a through slot, the pawl 6 passes through the through slot and is engaged with the strip tooth plate 2. The front surface of the back plate 1 and the left side of the connecting tube 5 are provided with a disengagement mechanism 4 for facilitating the separation of the pawl 6 and the strip tooth plate 2 when the limit on the movable platform 200 is cancelled. The front surface of the back plate 1 and the right side of the connecting tube 5 are provided with a pressing mechanism 7 for making the pawl 6 and the strip tooth plate 2 stick together when the movable platform 200 is limited. The axis position of the connecting roller is connected to a key shaft 8 through a spline. The left and right end parts of the key shaft 8 are optical axis structures, and the left and right end parts of the key shaft 8 located at the spline are pointed structures.

[0037] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the right side of the back panel 1 is slidably connected to the right side of the lifting slider 300 in the up and down directions through the connecting plate 9, the right side of the connecting plate 9 is fixedly connected to the hydraulic cylinder 10, the telescopic end of the hydraulic cylinder 10 is fixedly connected to the limit plate, the front end of the limit plate is fixedly connected to the rear surface of the lifting slider 300, the rear surface of the back panel 1 is hinged with the hydraulic cylinder 2 11, and the telescopic end of the hydraulic cylinder bar tooth plate 2 is hinged to the rear end of the bar tooth plate 2.

[0038] like Figure 2 and Figure 6 As shown, the disengagement mechanism 4 includes a force member 43 arranged on the back plate 1 for applying a reverse force to the key shaft 8 away from the bar tooth plate 2, and the front surface of the back plate 1 is provided with a stabilizing member 41 and a transmission member 42 for driving the force member 43 to generate a reverse force away from the bar tooth plate 2.

[0039] like Figure 2 and Figure 6As shown, the force member 43 includes a fixed seat three 431 fixedly connected to the front surface of the back plate 1, the right side of the fixed seat three 431 is rotatably connected to the turntable three 433, and the left side of the fixed seat three 431 is rotatably connected to the turntable two 432. A spline groove one is provided at the center position of the turntable three 433, and the left end of the key shaft 8 passes through the turntable three 433 and the turntable two 432. The spline groove one is plugged into the spline at the left end of the key shaft 8. The spline mouth of the spline groove one is set as a slope, which cooperates with the pointed angle structure of the spline at the left end of the key shaft 8 to facilitate the plugging of the spline at the left end of the key shaft 8 with the spline groove one, and the bar tooth plate 2 is slidably matched with the optical axis part at the left end of the key shaft 8. A torsion spring is provided inside the turntable three 433, and the right end of the torsion spring is fixedly connected to the left side of the turntable three 433, and the left end of the torsion spring is fixedly connected to the right side of the turntable two 432.

[0040] like Figure 2 and Figure 7 As shown, the auxiliary mechanism 3 includes two left-right symmetrical limit frames 31 fixedly connected to the front surface of the back plate 1, and a movable sleeve 32 is slidably connected to the limit frame 31 along the front-to-back direction. An elastic telescopic plate 33 is fixedly connected between the opposite surfaces of the two movable sleeves 32, and two hydraulic cylinders 34 are fixedly connected to the upper surface of the elastic telescopic plate 33. The telescopic end of the hydraulic cylinder 34 is fixedly connected to the front surface of the back plate 1.

[0041] During actual use, when the movable platform 200 is adjusted from an inclined state to a horizontal state, the hydraulic cylinder 2 11 is first extended to push the connecting tube 5 to rotate, driving the pawl 6 to move toward the direction close to the bar tooth plate 2. When the external hydraulic cylinder drives the movable platform 200 to gradually move to a horizontal state, the bottom end of the pawl 6 is clamped inside the tooth groove on the bar tooth plate 2, and then the hydraulic cylinder 10 is extended to cooperate with the limit plate to drive the back plate 1 to move downward through the connecting plate 9, so that the bottom end of the pawl 6 is close to the bottom end of the tooth groove position on the bar tooth plate 2, and the horizontal limit locking of the movable platform 200 is completed.

[0042] When the external hydraulic cylinder drives the movable platform 200 to adjust from the horizontal state to the inclined state, the hydraulic cylinder 3 34 is first used to drive the movable sleeve 32 to move toward the bar tooth plate 2 on the limit frame 31, so that the front end of the elastic telescopic plate 33 is against the bar tooth plate 2. The elastic telescopic setting of the elastic telescopic plate 33 can ensure that there is a margin of moving distance for the elastic telescopic plate 33 when moving, so as to avoid the phenomenon of jamming. At this time, the elastic telescopic plate 33 is used to cooperate with the bar tooth plate 2 to limit the movable platform 200. At the same time, when the elastic telescopic plate 33 moves, the key shaft 8 is first pushed to the left by the stabilizing member 41 and the transmission member 42 to engage with the turntable 3 433. At this time, the pawl 6 is clamped on the bar tooth plate 2 At this time, the pawl 6 limits the turntable three 433 on the fixed seat three 431. When the turntable two 432 rotates, the turntable two 432 tightens the torsion spring inside the fixed seat three 431, and then the external hydraulic cylinder drives the movable platform 200 to move upward a short distance again. At this time, during the upward movement, the pawl 6 gradually disengages from the tooth groove on the bar tooth plate 2. When the bar tooth plate 2 no longer limits the pawl 6, the torsion spring drives the pawl 6 to move away from the bar tooth plate 2 under the action of its own elastic force. At this time, the pawl 6 no longer limits the movable platform 200. After the temporarily limited elastic telescopic plate 33 is retracted, the limit on the movable platform 200 can be quickly cancelled to facilitate the adjustment of the state of the movable platform 200.

[0043] like Figure 6 The lock mechanism 7 is shown in Figure 1, and the clamping mechanism 7 includes a fixing seat 73 fixedly connected to the front surface of the back plate 1. The left side of the fixing seat 73 is rotatably connected to the turntable 71, and the right side of the fixing seat 73 is fixedly connected to the telescopic spring seat 72. The telescopic spring seat 72 is elastically telescopically arranged in the left and right directions. The telescopic spring seat 72 is rotatably connected to the right end of the key shaft 8. A spline groove 2 is provided at the center position of the turntable 71, and the spline groove 2 is plugged into the right end of the key shaft 8. The spline mouth of the spline groove 2 is also set as a slope, which cooperates with the sharp angle structure of the spline at the right end of the key shaft 8 to facilitate the plugging of the spline at the right end of the key shaft 8 into the spline groove 2. The right end of the key shaft 8 passes through the right side of the fixing seat 73 and is slidably connected to the fixing seat 73. A clockwork spring (not shown in the figure) is provided inside the fixing seat 73. One end of the clockwork spring is fixedly connected to the inner wall of the left side of the fixing seat 73, and the other end of the clockwork spring is fixedly connected to the right side of the turntable 71.

[0044] During specific use, when it is necessary to lock and limit the movable platform 200, the telescopic spring seat 72 is in a relaxed state under normal conditions. At this time, the spline at the right end of the key shaft 8 is always plugged into the second spline groove on the turntable 71. When the movable platform 200 moves upward to drive the pawl 6 to pass through the strip tooth plate 2, at the same time, it cooperates with the clockwork spring inside the fixed seat 73. When the pawl 6 moves upward and passes through the tooth position, the pawl 6 is pushed away from the strip tooth plate 2 due to the protruding teeth, and the pawl 6 is pushed on the connecting tube 5 in the direction away from the strip tooth plate 2. At this time, the pawl 6 drives the turntable 71 to rotate through the key shaft 8 and tightens the clockwork spring. When the pawl 6 moves to the tooth groove position, due to the depression of the tooth groove, the pawl 6 is pressed against the tooth groove of the strip tooth plate 2 under the action of the clockwork spring's own elastic force.

[0045] like Figure 6 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown, the stabilizing member 41 includes a fixing seat 2 413 fixedly connected to the front surface of the back panel 1, and the inner side of the fixing seat 2 413 is rotatably connected to a synchronous turntable 414, and the left side of the synchronous turntable 414 is fixedly connected to a toothed disk 412 through a plurality of connecting columns 1, and the right side of the toothed disk 412 is fixedly connected to the left side of the turntable 2 432 through a plurality of connecting columns 2.

[0046] like Figure 6 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown, the stabilizing member 41 also includes a guide rod 411 which is slidably connected to the upper surface of the fixing seat 413 through a limiting sleeve. The guide rod 411 is a 匚-shaped structure. The horizontal section on the upper side of the guide rod 411 is slidably connected to the limiting sleeve. The left end of the key shaft 8 passes through the gear plate 412. The horizontal section on the lower side of the guide rod 411 is rotatably connected to the left end of the key shaft 8. The middle position of the vertical section of the guide rod 411 is rotatably connected with an auxiliary sleeve.

[0047] like Figure 6 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, the transmission member 42 includes a support base 423 fixedly connected to the left side of the back plate 1, and an adjusting push rod 424 and a rack 425 are elastically slidably connected to the support base 423 along the front and rear directions through a connecting block. A return spring (not shown in the figure) is provided between the connecting block and the support base 423, the adjusting push rod 424 is fixedly connected to the left side of the connecting block, and the rack 425 is fixedly connected to the right side of the connecting block. A slope is provided at the front end of the left side of the rack 425, and the slope is slidably matched with the auxiliary sleeve on the guide rod 411, and the slope pushes the guide rod 411 1 moves a distance, driving the spline at the left end of the key shaft 8 to be inserted into the spline groove 1 on the turntable 3 433, while the spline at the right end of the key shaft 8 is separated from the spline groove 2 on the turntable 1 71, and the rack 425 is engaged with the toothed disc 412. The left side of the back plate 1 and above the support seat 423 is fixedly connected with the phase-changing wheel group 421, and a steel cable 422 is wound around the phase-changing wheel group 421. One end of the steel cable 422 is fixedly connected to the upper surface of the support seat 423 through the ear plate 1, and the other end of the steel cable 422 is fixedly connected to the movable sleeve 32 on the left side through the ear plate 2.

[0048] During specific use, when the hydraulic cylinder 34 pushes the elastic telescopic plate 33 to move forward, the elastic telescopic plate 33 pulls the steel cable 422 to move synchronously through the movable sleeve 32. At this time, the steel cable 422 drives the connecting block to move forward on the support seat 423 through the phase-changing wheel group 421. As the connecting block moves, the slope of the adjusting push rod 424 is first contacted with the auxiliary sleeve on the guide rod 411. The slope surface generates a left thrust on the auxiliary sleeve, and the auxiliary sleeve converts the sliding friction between the adjusting push rod 424 and the stabilizing member 41 into rolling friction. The adjusting push rod 424 pushes the guide rod 411 to move left, driving the key shaft 8 to move left synchronously, so that the key shaft 8 and the turntable When the spline groove on the third 433 is inserted, the telescopic spring seat 72 is compressed. When the plane of the adjusting push rod 424 contacts the auxiliary sleeve, the position of the guide rod 411 remains stationary. When the connecting block slides until the rack 425 engages with the toothed disc 412, as the connecting block continues to move, the rack 425 drives the toothed disc 412 to rotate, and cooperates with the setting of the fixed seat 2 413 and the synchronous turntable 414. When the toothed disc 412 rotates, the synchronous turntable 414 rotates synchronously inside the fixed seat 2 413, providing support for the toothed disc 412. At the same time, the toothed disc 412 drives the turntable 2 432 to rotate on the fixed seat 3 431, tightening the torsion spring inside the fixed seat 3 431.

[0049] When the pawl 6 moves away from the bar-shaped toothed plate 2, the hydraulic cylinder three 34 will restore the moving sleeve 32 to its original position on the limit frame 31. At this time, the moving sleeve 32 no longer generates tension on the steel cable 422. Under the action of the elastic force of the return spring itself, the connecting block is restored to its original position on the support seat 423, driving the adjusting push rod 424 away from the guide rod 411, driving the rack 425 away from the toothed disc 412. When the rack 425 moves away from the toothed disc 412, the rack 425 drives the toothed disc 412 to reverse. At this time, the toothed disc 412 drives the turntable two 432 to reverse. Since the pawl 6 is not subject to resistance at this time, the turntable two 432 drives the turntable three 433 to rotate through the torsion spring, and the turntable three 433 drives the pawl 6 to return to its original position through the key shaft 8.

[0050] It should be noted that the elastic force of the return spring is adaptively set by technical personnel in this field based on multiple tests to ensure that after the steel cable 422 is no longer under stress, the elastic force of the return spring can overcome the tension exerted on the key shaft 8 by the elastic force of the telescopic spring seat 72 and act on the guide rod 411. At the same time, the guide rod 411 can generate pressure on the adjusting push rod 424 and resistance on the rack 425 by the toothed disc 412, and at the same time, it can also drive the connecting block to return to its original position on the support seat 423.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0053] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor vehicle fixing and locking mechanism, characterized in that: It includes a support column, a movable platform for loading goods, and a lifting slider, and is characterized in that: a strip-shaped toothed plate is fixedly connected to the rear surface of the support column, a back plate is slidably connected to the right side surface of the lifting slider, and an auxiliary mechanism for temporarily limiting the movable platform is arranged on the front surface of the back plate. The front surface of the back plate is rotatably connected to a connecting cylinder through two connecting frames. An arrester is rotatably connected to the inner side of the connecting cylinder through a connecting roller. A separating mechanism for facilitating the separation of the arrester from the strip-shaped toothed plate is arranged on the front surface of the back plate and to the left of the connecting cylinder. A pressing mechanism for making the arrester fit with the strip-shaped toothed plate when limiting the movable platform is arranged on the front surface of the back plate and to the right of the connecting cylinder. A key shaft is splined to the axis position of the connecting roller; The separating mechanism includes a force applying member arranged on the back plate for applying a reverse force away from the strip-shaped toothed plate to the key shaft, and a stabilizing member and a transmission member arranged on the front surface of the back plate for driving the force applying member to generate a reverse force away from the strip-shaped toothed plate; The force applying member includes a fixed seat three fixedly connected to the front surface of the back plate. A turntable three is rotatably connected to the right side surface of the fixed seat three, and a turntable two is rotatably connected to the left side surface of the fixed seat three.

2. A motor vehicle fixing and locking mechanism according to claim 1, characterized in that: The right side surface of the back plate is slidably connected to the right side surface of the lifting slider in the vertical direction through a connecting plate. A hydraulic cylinder one is fixedly connected to the right side surface of the connecting plate. The telescopic end of the hydraulic cylinder one is fixedly connected to a limiting plate, and the front end of the limiting plate is fixedly connected to the rear surface of the lifting slider. A hydraulic cylinder two is hinged to the rear surface of the back plate, and the telescopic end of the hydraulic cylinder bar-shaped toothed plate is hinged to the rear end of the strip-shaped toothed plate.

3. The motor vehicle fixing and locking mechanism according to claim 1, characterized in that: A through groove is opened at the position corresponding to the arrester on the connecting cylinder, and the arrester passes through the through groove and is in clamping fit with the strip-shaped toothed plate.

4. The motor vehicle fixing and locking mechanism according to claim 1, characterized in that: A spline groove one is opened at the center position of the turntable three. A torsion spring is arranged inside the turntable three. The right end of the torsion spring is fixedly connected to the left side surface of the turntable three, and the left end of the torsion spring is fixedly connected to the right side surface of the turntable two.

5. The motor vehicle fixing and locking mechanism according to claim 1, characterized in that: The stabilizing member includes a fixed seat two fixedly connected to the front surface of the back plate. A synchronous turntable is rotatably connected to the inside of the fixed seat two. A toothed disc is fixedly connected to the left side surface of the synchronous turntable through a plurality of connecting columns one. The right side surface of the toothed disc is fixedly connected to the left side surface of the turntable two through a plurality of connecting columns two.

6. A motor vehicle fixing and locking mechanism according to claim 5, characterized in that: The stabilizing member further includes a guide rod slidably connected to the upper surface of the fixed seat two through a limiting sliding sleeve. The guide rod is of a U-shaped structure. The upper horizontal section of the guide rod is slidably connected to the limiting sliding sleeve. The left end of the key shaft passes through the toothed disc. The lower horizontal section of the guide rod is rotatably connected to the left end of the key shaft. An auxiliary sleeve is rotatably connected to the middle position of the vertical section of the guide rod.

7. The vehicle fixing and locking mechanism according to claim 1, characterized in that: The transmission member includes a support seat fixedly connected to the left side surface of the back plate. An adjusting push rod and a rack are elastically slidably connected to the support seat in the front-rear direction through a connecting block. A phase-changing wheel set is fixedly connected to the left side surface of the back plate and above the support seat, and a steel cable is wound around the phase-changing wheel set.

8. The vehicle fixing and locking mechanism according to claim 1, characterized in that: The auxiliary mechanism includes two symmetrically arranged limiting frames fixedly connected to the front surface of the back plate. A movable sliding sleeve is slidably connected to the limiting frames in the front-rear direction, and an elastic telescopic plate is fixedly connected between the opposite surfaces of the two movable sliding sleeves.

9. The vehicle fixing and locking mechanism according to claim 1, characterized in that: The pressing mechanism includes a fixed seat one fixedly connected to the front surface of the back plate. A turntable one is rotatably connected to the left side of the fixed seat one, and a telescopic spring seat is fixedly connected to the right side surface of the fixed seat one.

10. The vehicle fixing and locking mechanism according to claim 9, characterized in that: A spline groove 2 is provided at the center of the turntable 1, and a spring is provided inside the fixing seat 1. One end of the spring is fixedly connected to the left inner wall of the fixing seat 1, and the other end of the spring is fixedly connected to the right side of the turntable 1.

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