Locking device of manual feeding and discharging transfer trolley

Abstract

The invention belongs to the technical field of locking devices, and discloses a locking device of a manual feeding and discharging transfer trolley, the locking device comprises a cam bolt mounted at a preset position, and a locking mechanism and a control mechanism which are mounted on the transfer trolley, the control mechanism is used for pulling or loosening a pull rope, and the locking mechanism comprises an anti-falling stop block and a release stop block; the anti-falling stop block blocks a tray on the transfer trolley at a high position and can be matched with the cam bolt to descend to a low position, and the release stop block is matched with the cam bolt to realize locking at the low position and can be pulled by the pull rope to ascend to be separated from the cam bolt. According to the locking device of the manual feeding and discharging transfer trolley, through cooperation of the cam plug pin and the locking mechanism, in the carrying process, it can be guaranteed that the tray and materials in the tray are safe, and the falling risk does not exist; and meanwhile, in the carrying process, the no-load vehicle body cannot slide away.

Description

Technical Field

[0001] The invention belongs to the technical field of locking devices, and in particular relates to a locking device for a manual loading and unloading material transfer vehicle. Background Art

[0002] Most of the current loading and unloading pallet transfer vehicles are made of profiles or rectangular tube bodies. The top of the body adopts a concave structure to position the pallet to prevent it from sliding out or falling during transportation. After the material arrives at the destination, a single person (light material) carries the material to the line or multiple people carry the pallet to the line.

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: 1. During transportation, there is a risk of the pallet and the materials in the pallet falling; 2. Heavy materials require the cooperation of multiple people; 3. During transportation, the empty vehicle body is easy to slide away. Summary of the invention

[0004] The present invention aims to solve the above technical problems at least to a certain extent. To this end, the present invention aims to provide a locking device for a manual loading and unloading transfer vehicle.

[0005] The technical solution adopted by the present invention is:

[0006] A locking device for a manual loading and unloading transfer vehicle comprises a cam latch installed at a preset position and a locking mechanism and an operating mechanism installed on the transfer vehicle. The operating mechanism is used to pull or release a pull rope. The locking mechanism comprises an anti-slip block and a release block. The anti-slip block blocks the pallet on the transfer vehicle when in a high position and can cooperate with the cam latch to drop to a low position. The release block cooperates with the cam latch to achieve locking when in a low position and can rise and disengage from the cam latch when pulled by the pull rope.

[0007] Preferably, the operating mechanism comprises an elastic fixing seat, a hinge shaft seat is mounted on the elastic fixing seat, an operating handle is movably mounted on the hinge shaft seat, an elastic pin is provided between the operating handle and the hinge shaft seat, and the operating handle is connected to the pull rope.

[0008] Preferably, two locking mechanisms are provided, and two cam latches are also provided, and the cam latches and the locking mechanisms are arranged one by one. A synchronous drive mechanism is also installed on the transfer vehicle, and the synchronous drive mechanism is respectively connected to the pull rope of the operating mechanism and the pull ropes of the two locking mechanisms.

[0009] Preferably, the synchronous drive mechanism includes a drive mechanism seat, in which a synchronous piston is slidably installed. A main pull rope assembly is provided on one side of the drive mechanism seat, and two auxiliary pull rope assemblies are provided on the other side. The main pull rope assembly and the auxiliary pull rope assembly are respectively located on both sides of the synchronous piston, and the pull ropes of the main pull rope assembly and the auxiliary pull rope assembly are both connected to the synchronous piston.

[0010] Preferably, two sliding guide rods are further provided in the driving mechanism seat, the synchronous piston sliding sleeve is arranged on the two guide rods, and at least one of the sliding guide rods is provided with a return spring.

[0011] Preferably, a continuous guiding cone surface and a downward pressing inclined surface are provided on one side of the front end of the cam latch, and a continuous upward pushing inclined surface and an anti-retraction groove are provided on the other side.

[0012] Preferably, the locking mechanism includes a mechanism body, which is provided with a through hole for the cam pin to pass through, and rolling bearings are respectively provided on the left and right sides of the through hole entrance, and a first guide rod and a second guide rod are respectively provided in the mechanism body, an anti-slip block is slidably provided on the first guide rod, and a release block is slidably provided on the second guide rod, the first guide rod is provided with a first spring for pushing the anti-slip block upward, and the second guide rod is provided with a second spring for pushing the release block downward.

[0013] Preferably, the anti-drop block is provided with a first drive bearing for cooperating with the guide cone surface and the downward pressing inclined surface of the cam pin, and the release block is provided with a second drive bearing for cooperating with the upward pushing inclined surface and the anti-retraction groove of the cam pin.

[0014] Preferably, a roller fixing frame is provided on the main body of the mechanism, a roller is provided inside the roller fixing frame, and the pull rope is connected to the release block after passing through the roller.

[0015] Preferably, an upper cover is provided at the upper end opening of the mechanism body, the upper ends of the anti-slip block and the release block are both arranged through the upper cover, the lower surface of the upper cover abuts against the step in the middle of the anti-slip block, and the lower surface of the upper cover also abuts against the upper end of the second spring.

[0016] The beneficial effects of the present invention are:

[0017] The locking device of a manual loading and unloading transfer vehicle provided by the present invention can ensure the safety of a pallet and materials in the pallet without the risk of falling during the transportation process through the cooperation of a cam pin and a locking mechanism; at the same time, the empty vehicle body will not slide away during the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the locking device of the manual loading and unloading transfer vehicle of the present invention.

[0019] Figure 2 It is a schematic diagram of the cam latch of the present invention.

[0020] Figure 3 It is a schematic diagram of the cam latch of the present invention from another angle.

[0021] Figure 4 It is a schematic diagram of the locking mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the locking mechanism of the present invention from another angle.

[0023] Figure 6 It is a partial structural schematic diagram of the locking mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of the release block of the present invention.

[0025] Figure 8 It is a schematic diagram of the synchronous drive mechanism of the present invention.

[0026] Fig. 9 It is a cross-sectional view of the synchronous drive mechanism of the present invention.

[0027] Fig.10 It is a schematic diagram of the operating mechanism of the present invention.

[0028] In the figure: 1-cam latch; 11-guide cone; 12-pressing inclined plane; 13-pushing inclined plane; 14-anti-retraction slot; 2-locking mechanism; 21-mechanism body; 22-through hole; 23-rolling bearing; 24-first guide rod; 25-second guide rod; 26-anti-slip block; 27-release block; 28-first spring; 29-second spring; 210-first drive bearing; 211-second drive bearing; 212-roller fixing frame; 213-roller; 214-upper cover; 3-synchronous drive mechanism; 31-drive mechanism seat; 32-synchronous piston; 33-main pull rope assembly; 34-auxiliary pull rope assembly; 35-sliding guide rod; 36-return spring; 4-operating mechanism; 41-elastic fixing seat; 42-hinge shaft seat; 43-operating handle; 44-elastic pin; 51-main pull rope; 52-auxiliary pull rope. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations.

[0030] In the present invention, unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.

[0031] like Figures 1 to 10As shown, a locking device for a manual loading and unloading transfer vehicle of this embodiment includes a cam latch 1, a locking mechanism 2 and an operating mechanism 4. The cam latch 1 is installed at a preset position, such as a conveyor line or other connection or pallet storage position; the locking mechanism 2 is installed at the front end of the pallet on the transfer vehicle to block or release the pallet; the operating mechanism 4 is installed at the handle position of the push vehicle. The locking mechanism 2 includes an anti-slip block 26 and a release block 27. The anti-slip block 26 blocks the pallet on the transfer vehicle when in a high position and can cooperate with the cam latch 1 to drop to a low position. The release block 27 cooperates with the cam latch 1 to achieve locking when in a low position and can rise and disengage from the cam latch 1 when pulled by a pull rope.

[0032] The cam latch 1 is roughly a square columnar structure, with two functional areas of anti-slip and release, and each functional area drives the corresponding mechanism to move. The anti-slip functional area includes a continuous guide cone 11 and a downward pressing slope 12 set on one side of the front end of the cam latch 1. The guide cone 11 allows a large alignment deviation between the cam latch 1 and the transfer workshop, and the downward pressing slope 12 drives the anti-slip block 26 to press down to release the pallet; the release functional area includes a continuous upward push slope 13 and an anti-retraction slot 14 set on the other side of the front end of the cam latch 1. The upward push slope 13 pushes the release block 27 upward. When the transfer vehicle is in place, the release block 27 enters the anti-retraction slot 14 under the action of the spring force to prevent the transfer vehicle from shifting.

[0033] Specifically, when the transfer vehicle is pushed manually, the anti-drop block 26 blocks the pallet at a high position to prevent the pallet from falling off during transportation. When the transfer vehicle is pushed to the docking position, the cam latch 1 is inserted into the locking mechanism 2, the anti-drop block 26 drops to a low position, and the release block 27 enters the anti-return slot 14 of the cam latch 1 to prevent the transfer vehicle from falling back during the docking process. Then the pallet is pushed manually, and the pallet moves to the docking position along the rolling bar of the transfer vehicle, or the empty pallet is pulled from the docking position to the fixed position of the trolley.

[0034] The operating mechanism 4 is used to pull or release the pull rope, and the operating mechanism 4 includes an elastic fixing seat 41, which is installed on the handrail of the transfer vehicle and locked by bolts. A hinge shaft seat 42 is installed on the elastic fixing seat 41, and an operating handle 43 is movably installed on the hinge shaft seat 42. An elastic pin 44 is provided between the operating handle 43 and the hinge shaft seat 42, and the operating handle 43 is connected to the pull rope.

[0035] After the connection is completed, the operating handle 43 is pressed down, and the steel wire in the pull rope is pulled to drive the release block 27 in the locking mechanism 2 to disengage the anti-retraction slot 1 of the cam latch 1, and then the transfer vehicle can be pulled out. After being pulled out, the anti-disengagement block 26 is reset (moved up to a high position) under the action of the spring, blocking the pallet to prevent the pallet from falling out.

[0036] In this embodiment, two locking mechanisms 2 are provided, and two cam latches 1 are also provided. The cam latches 1 are arranged one by one with the locking mechanisms 2. A synchronous driving mechanism 3 is also installed on the transfer vehicle, and the synchronous driving mechanism 3 is respectively connected to the pull rope of the operating mechanism 4 and the pull ropes of the two locking mechanisms 2. The synchronous driving mechanism 3 is installed in a relatively hidden position of the transfer vehicle; the synchronous driving mechanism 3 is used to convert the action of the main pull rope 51 connected to the operating mechanism 4 into the action of the auxiliary pull rope 52 respectively connected to the two locking mechanisms 2.

[0037] The synchronous drive mechanism 3 includes a drive mechanism seat 31, in which a synchronous piston 32 is slidably installed. A main pull rope assembly 33 is provided on one side of the drive mechanism seat 31, and two auxiliary pull rope assemblies 34 are provided on the other side. The main pull rope assembly 33 and the auxiliary pull rope assembly 34 are respectively located on both sides of the synchronous piston 32. The main pull rope 51 of the main pull rope assembly 33 and the auxiliary pull rope 52 of the auxiliary pull rope assembly 34 are both connected to the synchronous piston 32. Two sliding guide rods 35 are also provided in the drive mechanism seat 31, and the synchronous piston 32 is slidably sleeved on the two guide rods, and a return spring 36 is provided on one of the sliding guide rods 35. The action of the main pull rope assembly 33 is transmitted to the two auxiliary pull rope assemblies 34 through the synchronous piston 32. After the action of the main pull rope assembly 33 ends, the synchronous piston 32 is reset under the action of the return spring 36.

[0038] The locking mechanism 2 includes a mechanism body 21, which is provided with a through hole 22 for the cam pin 1 to pass through, and rolling bearings 23 are respectively provided on the left and right sides of the entrance of the through hole 22. A first guide rod 24 and a second guide rod 25 are respectively provided in the mechanism body 21, and an anti-slip block 26 is slidably provided on the first guide rod 24, and a release block 27 is slidably provided on the second guide rod 25. The first guide rod 24 is provided with a first spring 28 for pushing the anti-slip block 26 upward, and the second guide rod 25 is provided with a second spring 29 for pushing the release block 27 downward.

[0039] The anti-drop block 26 is provided with a first driving bearing 210 for cooperating with the guide cone surface 11 and the downward pressing inclined surface 12 of the cam latch 1, and the release block 27 is provided with a second driving bearing 211 for cooperating with the upward pushing inclined surface 13 and the anti-retraction groove 14 of the cam latch 1. The mechanism body 21 is provided with a roller fixing frame 212, and a roller 213 is provided in the roller fixing frame 212. The auxiliary pull rope 52 passes through the roller 213 and is connected to the release block 27.

[0040] An upper cover 214 is provided at the upper opening of the mechanism body 21, and the upper ends of the anti-slip block 26 and the release block 27 are both arranged through the upper cover 214, and the lower surface of the upper cover 214 abuts against the step in the middle of the anti-slip block 26, and the lower surface of the upper cover 214 also abuts against the upper end of the second spring 29. When the locking mechanism 2 is installed on the transfer vehicle, the positions of the anti-slip block 26 and the release block 27 can be adjusted by adding an adjustment pad to the upper cover 214.

[0041] The working principle and process of the locking device of the manual loading and unloading transfer vehicle in this embodiment are roughly as follows: during the transfer process, the anti-drop block 26 is in a high position under the action of the first spring 28, and can block the lower edge of the tray, while the release block 27 is in a low position under the action of the second spring 29. When the transfer vehicle is pushed to the docking position, the cam pin 1 is inserted into the through hole 22, and the rolling bearing 23 guides the cam pin 1.

[0042] When the transfer vehicle continues to move forward, the downward pressing slope 12 of the cam pin 1 transmits force to the anti-slip block 26 through the first driving bearing 210 to press the anti-slip block 26 downward; at the same time, the upward pushing slope 13 of the cam pin 1 transmits force to the release block 27 through the second driving bearing 211 to move the release block 27 upward.

[0043] When the transfer vehicle continues to move forward to the right position, the anti-slip block 26 is in a fully depressed state, and the upper end of the anti-slip block 26 leaves the pallet; at the same time, the second drive bearing 211 of the release block 27 is in the anti-retraction slot 14 position of the cam latch 1, and the second drive bearing 211 returns to the anti-retraction slot 14 under the action of the second spring 29, so that the transfer vehicle cannot retreat. The pallet is in a release state.

[0044] When the pallet is transported or the empty pallet is moved into place, the operating handle 43 is pressed down, the main pull rope 51 is pulled, and the synchronous piston 32 is driven to move; the synchronous piston 32 drives the release block 27 in the locking mechanism 2 to move through the auxiliary pull rope 52, drives the release block 27 to move upward, and the second drive bearing 211 disengages from the anti-retraction groove 14 of the cam pin 1; pull out the transfer cart, and the anti-detachment block 26 returns to the high position under the action of the spring force of the first spring 28; after releasing the operating handle 43, the release block 2 returns to the low position under the action of the spring force of the second spring 29, and the pallet is in a blocked state.

[0045] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A locking device for a manual loading and unloading transfer vehicle, characterized in that: The invention comprises a cam latch (1) installed at a preset position, a locking mechanism (2) and an operating mechanism (4) installed on a transfer vehicle, wherein the operating mechanism (4) is used to pull or release a drawstring, and the locking mechanism (2) comprises an anti-slip block (26) and a release block (27). The anti-slip block (26) blocks the pallet on the transfer vehicle when in a high position and can cooperate with the cam latch (1) to be lowered to a low position, and the release block (27) cooperates with the cam latch (1) to achieve locking when in a low position and can rise and separate from the cam latch (1) when pulled by the drawstring.

2. The locking device according to claim 1, characterized in that: The operating mechanism (4) comprises an elastic fixing seat (41), a hinge shaft seat (42) is mounted on the elastic fixing seat (41), an operating handle (43) is movably mounted on the hinge shaft seat (42), an elastic pin (44) is arranged between the operating handle (43) and the hinge shaft seat (42), and the operating handle (43) is connected to a pull rope.

3. The locking device according to claim 1, characterized in that: The locking mechanisms (2) are provided with two, and the cam latches (1) are also provided with two. The cam latches (1) and the locking mechanisms (2) are arranged in a one-to-one correspondence. The transfer vehicle is also provided with a synchronous drive mechanism (3), and the synchronous drive mechanism (3) is respectively connected to the pull rope of the operating mechanism (4) and the pull ropes of the two locking mechanisms (2).

4. The locking device according to claim 3, characterized in that: The synchronous drive mechanism (3) comprises a drive mechanism seat (31), a synchronous piston (32) is slidably mounted in the drive mechanism seat (31), a main pull rope assembly (33) is provided on one side of the drive mechanism seat (31), and two auxiliary pull rope assemblies (34) are provided on the other side, the main pull rope assembly (33) and the auxiliary pull rope assembly (34) are respectively located on both sides of the synchronous piston (32), and the pull ropes of the main pull rope assembly (33) and the auxiliary pull rope assembly (34) are both connected to the synchronous piston (32).

5. The locking device according to claim 3, characterized in that: Two sliding guide rods (35) are also arranged in the driving mechanism seat (31), and the synchronous piston (32) is slidably sleeved on the two guide rods (), and at least one of the sliding guide rods (35) is provided with a return spring (36).

6. The locking device according to claim 1, characterized in that: One side of the front end of the cam latch (1) is provided with a continuous guide cone surface (11) and a downward pressing inclined surface (12), and the other side is provided with a continuous upward pushing inclined surface (13) and an anti-retraction groove (14).

7. The locking device according to claim 6, characterized in that: The locking mechanism (2) comprises a mechanism body (21), the mechanism body (21) is provided with a through hole (22) for the cam pin (1) to pass through, rolling bearings (23) are respectively provided on the left and right sides of the entrance of the through hole (22), a first guide rod (24) and a second guide rod (25) are respectively provided in the mechanism body (21), an anti-slip block (26) is slidably provided on the first guide rod (24), a release block (27) is slidably provided on the second guide rod (25), a first spring (28) for pushing the anti-slip block (26) upwards is provided on the first guide rod (24), and a second spring (29) for pushing the release block (27) downwards is provided on the second guide rod (25).

8. The locking device according to claim 7, characterized in that: The anti-dropout block (26) is provided with a first drive bearing (210) for cooperating with the guide cone surface (11) and the downward pressing inclined surface (12) of the cam latch (1), and the release block (27) is provided with a second drive bearing (211) for cooperating with the upward pushing inclined surface (13) and the anti-dropout groove (14) of the cam latch (1).

9. The locking device according to claim 7, characterized in that: The mechanism body (21) is provided with a roller fixing frame (212), a roller (213) is provided inside the roller fixing frame (212), and the pull rope is connected to the release block (27) after passing through the roller (213).

10. The locking device according to claim 7, characterized in that: An upper cover (214) is provided at the upper end opening of the mechanism body (21), the upper ends of the anti-slip block (26) and the release block (27) are both arranged through the upper cover (214), the lower surface of the upper cover (214) abuts against the step in the middle of the anti-slip block (26), and the lower surface of the upper cover (214) also abuts against the upper end of the second spring (29).

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