towing seat

Abstract

The application discloses a traction seat, comprising a bottom plate, a locking structure comprising a locking assembly, a baffle and a sliding block between the locking assembly and the baffle, the sliding end of the sliding block being connected to the locking assembly in a sliding manner, the baffle being rotatably connected to the bottom plate and being blocked outside the stop end of the sliding block, an unlocking structure connected to the locking structure, comprising a first driving unit, a second driving unit mounted on the bottom plate and a control lever between the sliding block and the baffle, the first driving unit being connected to the baffle, the control lever being connected to the stop end and the second driving unit and being rotatably connected to the bottom plate, the first driving unit driving the baffle to rotate so that the baffle avoids or blocks the sliding block, the second driving unit driving the control lever to rotate and drive the sliding block to slide inward or outward, so that the locking assembly is opened or closed, and through the structural design, the locking assembly can be automatically opened and closed, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile connecting device, in particular to a towing seat. BACKGROUND

[0002] The towing seat is a load-bearing component for connecting a semi-trailer to a cargo towing vehicle. The existing towing seat comprises a bottom plate, a locking assembly for locking a towing pin, and a manual unlocking assembly connected with the locking assembly. The locking assembly and the manual unlocking assembly are installed on the lower plate surface of the bottom plate. The locking assembly comprises a lock bolt rotatably connected to the bottom plate. The manual unlocking assembly comprises a control rod connected with the lock bolt and a handle connected with the control rod. The handle is located outside the towing seat. When it is necessary to open the locking assembly, the control rod is pushed by the handle to drive the lock bolt to rotate, so as to open the lock bolt and make the locking assembly open, i.e. the towing seat is opened, and then the towing pin can be taken out of the towing seat. However, this manual opening method of the locking assembly is time-consuming, laborious and low in efficiency. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the present application is to provide a towing seat capable of automatically opening and closing the locking assembly. The opening and closing operation of the towing seat is convenient and fast, so that the working efficiency is improved.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] The towing seat comprises a bottom plate, a locking structure, an unlocking structure, and a support. The locking structure comprises a locking assembly, a baffle, and a sliding block located between the locking assembly and the baffle. The sliding end of the sliding block is connected to the locking assembly in a sliding manner. The baffle is rotatably connected to the bottom plate and is blocked at the stop end of the sliding block. The unlocking structure comprises a first driving unit, a second driving unit, and a control rod located between the sliding block and the baffle. The first driving unit is connected to the baffle. The control rod is connected to the stop end and the second driving unit and is rotatably connected to the bottom plate. The first driving unit drives the baffle to rotate, so that the baffle avoids or blocks the sliding block. The second driving unit drives the control rod to rotate and drives the sliding block to slide inward or outward, so that the locking assembly is opened or closed.

[0006] Further, the first driving unit is installed on the bottom plate through a support and is close to the plate edge of the bottom plate relative to the control rod.

[0007] Further, the second driving unit is located between the locking assembly and the support of the towing seat and is installed on the bottom plate through a fixing seat.

[0008] Further, the first driving unit and the second driving unit are gas cylinders.

[0009] Further, the locking structure comprises a mounting plate inside the baffle, the mounting plate is fixed on the bottom plate, the baffle is rotationally connected to the mounting plate, and the first driving unit is located on the side of the mounting plate away from the operating rod.

[0010] Further, the mounting plate is fixed on the plate edge of the bottom plate, the plate surface of the mounting plate is provided with a through hole penetrating through the mounting plate, the baffle covers the through hole, the stop end is connected with a sliding rod, the sliding rod is in sliding fit with the through hole, and the free end of the sliding rod can extend out of the through hole, in the case that the first driving unit drives the baffle to rotate to open the through hole, the second driving unit drives the operating rod to rotate to drive the sliding block to slide outward, so that the locking assembly is opened.

[0011] Further, the stop end is connected with a sliding rod and a connecting plate located outside the sliding rod, the baffle is stopped outside the free end of the sliding rod, the connecting plate is provided with a connecting groove penetrating through the connecting plate along the length direction of the operating rod, the operating rod is located between the sliding rod and the lower plate surface of the bottom plate and is clamped with the connecting groove.

[0012] Further, the pivot joint end of the operating rod is provided with a pivot joint hole, the bottom plate is fixed with a connecting bolt corresponding to the pivot joint hole, and the connecting bolt is in rotational fit with the pivot joint hole.

[0013] Further, the locking assembly comprises two clamping plates oppositely arranged, the two clamping plates are rotationally connected to the bottom plate, and a clamping groove is formed between the two clamping plates, and the sliding end of the sliding block is connected to the clamping groove in relative sliding manner.

[0014] Further, the end surface of the stop end is fixed with a sliding rod, the sliding rod is sleeved with a first spring, the plate edge of the bottom plate is fixed with a mounting plate corresponding to the free end of the sliding rod, one end of the first spring abuts against the mounting plate, the baffle is rotationally connected to the outer plate surface of the mounting plate and is connected with a second spring therebetween, and the traction seat further comprises a manual operating assembly connected with the baffle and the operating rod.

[0015] The traction seat of the present application is provided with a first driving unit, a second driving unit and a control rod between the sliding block and the baffle, which are installed on the bottom plate, the first driving unit is connected with the baffle, the control rod is connected with the stop end and the second driving unit and is rotatably connected on the bottom plate; the first driving unit drives the baffle to rotate, so that the baffle avoids or stops the sliding block, that is, the baffle automatically avoids or stops the sliding block, the second driving unit drives the control rod to rotate and drives the sliding block to slide inward or outward, so that the locking assembly is opened or closed, thereby realizing automatic opening and closing of the locking assembly, that is, the opening and closing operation of the traction seat is convenient and fast, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective combined schematic view of the traction seat of the present application;

[0017] Figure 2 It is a perspective combined schematic view of the traction seat of the present application; Figure 1 from another angle;

[0018] Figure 3 It is a partial enlarged view of a of the traction seat of the present application; Figure 2

[0019] Figure 4 It is a partial view of the state of the baffle when the locking assembly is closed; Figure 2

[0020] Figure 5 It is a partial view of the state of the baffle when the locking assembly is opened; Figure 2

[0021] Figure 6 It is a partial schematic view of the action process of the control rod when the locking assembly is opened. Figure 2 DETAILED DESCRIPTION The present application is further described below in combination with the drawings and specific embodiments:

[0022] As shown in the drawings, the present application provides a traction seat for connecting a tractor and a semitrailer, the traction seat comprising a bottom plate 1, a locking structure 2, an unlocking structure 3, a support 4 and a manual operation assembly 5, the locking structure 2, the unlocking structure 3, the support 4 and the manual operation assembly 5 are all installed on the lower plate surface 14 of the bottom plate 1.

[0023] Figures 1 to 6 As shown in the drawings, ,

[0024] the bottom plate 1 has an upper plate surface 13 and a lower plate surface 14 located above the upper plate surface 13. As shown in the drawings, Figure 1 , Figure 2 the bottom plate 1 has an upper plate surface 13 and a lower plate surface 14 located above the upper plate surface 13. As shown in the drawings, Figure 2 , Figure 3 the bottom plate 1 has an upper plate surface 13 and a lower plate surface 14 located above the upper plate surface 13. As shown in the drawings,​​As shown, the locking structure 2 comprises a locking assembly 21, a baffle 22 and a sliding block 23 between the locking assembly 21 and the baffle 22, which are mounted on the lower plate surface 14, the locking assembly 21 comprises two clamping plates 211 oppositely arranged for locking the towing pin and rotatably connected to the bottom plate 1, and a clamping groove 210 is formed between the two clamping plates 211, the sliding block 23 has a sliding end 231 and a stop end 232 oppositely arranged, the sliding end 231 is slidably connected with the locking assembly 21, specifically, the sliding end 231 is slidably connected in the clamping groove 210 to realize opening and closing of the two clamping plates 211. The stop end 232 is connected with a sliding rod 26 and a connecting plate 27 outside the sliding rod 26, the connecting plate 27 is provided with a connecting groove 271 penetrating through the connecting plate 27 along the length direction of the operating rod 33. More specifically, the sliding rod 26 is fixed to the end face of the stop end 232, and the sliding rod 26 is sleeved with a first spring 262 for resetting the sliding rod 26. The baffle 22 is rotatably connected to the bottom plate 1 and abuts against the stop end 232 of the sliding block 23, in this embodiment, the baffle 22 abuts against the free end 261 of the sliding rod 26, the design of the baffle 22 can control the sliding stroke of the sliding block 23.

[0025] As shown in Figure 2 , Figure 3 , the unlocking structure 3 is connected with the locking structure 2, which comprises a first driving unit 31, a second driving unit 32 and an operating rod 33 between the sliding block 23 and the baffle 22, which are mounted on the bottom plate 1, the transmission rod of the first driving unit 31 is connected with the baffle 22, the operating rod 33 is connected with the stop end 232 and the transmission rod of the second driving unit 32 and is rotatably connected to the bottom plate 1, in this embodiment, the operating rod 33 is located between the sliding rod 26 and the lower plate surface 14 of the bottom plate 1 and is clamped in the connecting groove 271 to realize connection of the operating rod 33 with the sliding block 23. The first driving unit 31 drives the baffle 22 to rotate (as shown in Figure 5 ), so that the baffle 22 avoids or abuts against the sliding block 23, that is, the baffle 22 automatically avoids or abuts against the sliding block 23, the second driving unit 32 drives the operating rod 33 to rotate to drive the sliding block 23 to slide inward or outward, so that the locking assembly 21 is opened or closed, thereby realizing automatic opening and closing of the locking assembly 21, that is, the opening and closing operation of the towing seat is convenient and fast, thereby improving work efficiency.

[0026] As shown in Figure 2 , Figure 3As shown, in order to facilitate installation and save space in the hitch, the first drive unit 31 is located outside the bottom plate 1 and is mounted on the bottom plate 1 through the support 34, and the first drive unit 31 is close to the plate edge 11 of the bottom plate 1 relative to the operating rod 33, wherein the support 34 is fixed on the lower plate surface 14 and is close to the plate edge 11 of the bottom plate 1 relative to the operating rod 33. The second drive unit 32 is located between the locking assembly 21 and the support 4 of the hitch and is mounted on the bottom plate 1 through the fixing seat 24, and the second drive unit 32 and the first drive unit 31 are located on opposite sides of the operating rod 33 respectively. In this embodiment, the first drive unit 31 and the second drive unit 32 are air cylinders connected with an electromagnetic valve group (not shown), wherein the first drive unit 31 is a swing cylinder and the second drive unit 32 is a push-pull cylinder. Of course, in other embodiments, the first drive unit 31 and the second drive unit 32 can also be powered mechanisms such as hydraulic cylinders, which can be selected according to actual needs.

[0027] As shown in Figure 2 , Figure 3 , the locking structure 2 includes a mounting plate 25 located inside the baffle 22, the mounting plate 25 is fixed on the bottom plate 1, the baffle 22 is rotationally connected to the mounting plate 25, the first drive unit 31 is located on the side of the mounting plate 25 away from the operating rod 33, and the mounting plate 25 is designed to realize the connection of the baffle 22 and the bottom plate 1. As shown in Figure 4 , Figure 5 , specifically, the mounting plate 25 is fixed on the plate edge 11 of the bottom plate 1 and corresponds to the free end 261 of the sliding rod 26, the plate surface of the mounting plate 25 is provided with a through hole 251 penetrating through the mounting plate 25, the baffle 22 covers the through hole 251, the through hole 251 is in sliding fit with the sliding rod 26, so that the free end 261 of the sliding rod 26 can extend out of the through hole 251, in the case that the first drive unit 31 drives the baffle 22 to rotate to open the through hole 251, the second drive unit 32 drives the operating rod 33 to rotate to drive the sliding block 23 to slide outward, so that the locking assembly 21 is opened. The baffle 22 is rotationally connected to the outer plate surface of the mounting plate 25 by a screw and a second spring 221 for resetting the baffle 22 is connected between the baffle 22 and the mounting plate 25, and one end of the first spring 262 abuts against the mounting plate 25.

[0028] As shown in Figure 2 , Figure 3 , in order to simplify the structure and the installation process, the pivoting end 331 of the operating rod 33 is provided with a pivoting hole 3311, the bottom plate 1 is fixed with a connecting bolt 12 corresponding to the pivoting hole 3311, the connecting bolt 12 is in rotational fit with the pivoting hole 3311, and the connecting bolt 12 is designed to realize the relative rotation of the operating rod 33 relative to the bottom plate 1.

[0029] As shown in Figure 2 , Figure 3As shown, the hitch also comprises a manual operating assembly 5 connected with the baffle 22 and the operating rod 33, the manual operating assembly 5 comprising a handle (not numbered) outside the hitch, the handle being connected with the baffle 22 and the operating rod 33, so that the handle can drive the baffle 22 and the operating rod 33 to move, to manually open the locking assembly 21. By arranging the manual operating assembly 5, the locking assembly 21 can be opened manually according to actual needs.

[0030] When it is needed to open the locking assembly 21, the operator presses the hitching and unhitching control button to start the first driving unit 31, the first driving unit 31 pulls the baffle 22 towards the support 34 to make the baffle 22 rotate by a certain angle around the screw, when the baffle 22 is rotated to the position, the through hole 251 is opened (as shown in Figure 5 As shown, in the state that the through hole 251 is opened, the second driving unit 32 is started, the started second driving unit 32 pushes the operating rod 33 to rotate outwardly around the connecting bolt 12 (as shown in Figure 6 As shown, the operating rod 33 rotating outwardly drives the sliding block 23 to slide outwardly along the clamping groove 210 until the two clamping plates 211 are opened, at this time, one end of the sliding rod 26 extends out of the hitch from the through hole 251, to realize the automatic hitching and unhitching action, i.e. the hitch pin can be taken out of the hitch. When it is needed to close the locking assembly 21, the above-mentioned action is reversed, to realize the automatic locking and hitching action, i.e. the hitch pin can be locked.

[0031] The hitch of the present application is arranged with the first driving unit, the second driving unit mounted on the bottom plate and the operating rod between the sliding block and the baffle, the first driving unit being connected with the baffle, the operating rod being connected with the stop end and the second driving unit and being rotationally connected on the bottom plate; the first driving unit drives the baffle to rotate, so that the baffle avoids or blocks the sliding block, i.e. the baffle automatically avoids or blocks the sliding block, the second driving unit drives the operating rod to rotate to drive the sliding block to slide inwardly or outwardly, so that the locking assembly is opened or closed, to realize the automatic opening and closing of the locking assembly, i.e. the opening and closing of the hitch is convenient and fast, to further improve the work efficiency.

[0032] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tow hitch, characterized in that The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block.

2. The draft rest of claim 1, wherein The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block.

3. The draft rest of claim 1, wherein, The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block.

4. The draft collar of claim 1 wherein, The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block.

5. The draft collar of claim 1 wherein, The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block.

6. The draft collar of claim 1 wherein, The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block.

7. The draft collar of claim 1 wherein, The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a towing seat, and the lock structure comprises a bottom plate, a locking assembly, a baffle and a sliding block. The utility model relates to a lock structure and unlocking structure of a

Images