A locking mechanism for a hydraulic outrigger

Abstract

This utility model discloses a locking mechanism for a hydraulic outrigger, belonging to the field of hydraulic outriggers. It includes an outrigger body, which includes a support part and an adjustment part. A locking mechanism is installed at the hinge of the support part and the adjustment part. The locking mechanism includes a locking element I and a locking element II. No manual mechanical locking is required; automatic locking is achieved after the hydraulic outrigger angle is adjusted. This prevents the display frame connected to the hydraulic outrigger from resetting and falling due to gravity or hydraulic system failure, thus preventing damage to people or objects below the display frame.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic outriggers, and more specifically, relates to a locking mechanism for hydraulic outriggers. Background Technology

[0002] Hydraulic outriggers are a common vehicle auxiliary device that uses hydraulic principles to support and stabilize mechanical equipment. The working principle of a hydraulic outrigger mainly includes three parts: the hydraulic system, the guiding mechanism, and the supporting device. The hydraulic system is the core of its operation. The hydraulic system consists of a hydraulic pump, hydraulic cylinders, hydraulic valves, and hydraulic lines. The hydraulic pump drives the flow of hydraulic oil to generate a certain hydraulic pressure. The hydraulic cylinder, acting as the actuator of hydraulic force, converts hydraulic energy into mechanical energy, realizing the extension and retraction of the outrigger. The hydraulic valves control the flow direction and flow rate of the hydraulic oil, thereby controlling the raising and lowering of the outrigger.

[0003] Hydraulic outriggers must have mechanical or reliable locking mechanisms for safety and load-bearing capacity to prevent accidental retraction / extension of the outriggers due to hydraulic failure, leakage, control malfunction, or external disturbances, which could cause equipment overturning, structural damage, or personal injury. Therefore, locking mechanisms are usually added to hydraulic outriggers for protection.

[0004] Since the hydraulic outriggers on the vehicle have height and angle adjustment functions, the locking structure for the lifting structure is relatively simple. A traditional plug or convex mechanical structure can achieve good protection. However, when setting a locking mechanism at the hinge for adjusting the angle, it is a technical challenge to ensure that the fixed limit after stopping is not affected while not affecting the rotation. At present, there is also an insertion locking method with an annular hole and the same locking structure as the lifting structure. Although it can also achieve a good fixing effect, the hinge is closer to the bottom of the vehicle than the lifting structure, and the space for hand operation at the hinge is also smaller. Therefore, an automatic locking method is needed to protect the hinge. Utility Model Content

[0005] To address the above deficiencies, this utility model provides a locking mechanism for a hydraulic outrigger, comprising an outrigger body, the outrigger body including a support portion and an adjustment portion, a locking mechanism being installed at the hinge joint between the support portion and the adjustment portion, the locking mechanism including a locking element I;

[0006] The locking component I includes two fixed clamping plates. The top ends of the two fixed clamping plates are connected to fixed bolts by installed positioning bolts. The fixed bolts are threadedly connected to the screw holes of the support part. A positioning sleeve is installed between the two fixed clamping plates. A ratchet is fixed to the outer ring of the positioning sleeve. The inner ring of the positioning sleeve is installed outside the rotating pin of the support part and the adjusting part and rotates synchronously with it. A lever I for limiting the ratchet is also hinged between the two fixed clamping plates by a pin shaft. A control box is installed between the two fixed clamping plates at the end of the lever I away from the ratchet. The lever I is connected to the control box by a tension spring. An electromagnet for magnetically attracting the lever I is installed inside the control box.

[0007] Furthermore, the support part is provided with a cavity, and a locking member II is installed inside the cavity. The locking member II includes an electric push rod installed on the back of the support part. The output end of the electric push rod passes through the back of the support part and extends into the cavity. The output end of the electric push rod is hinged to a paddle II adapted to the ratchet by a spring pin. An opening for the paddle II to pass through is provided on the left side of the cavity.

[0008] The middle part of the paddle II has a waist-shaped groove, and the fixed clamp at the rear is welded with a limit post. After the limit post is inserted into the waist-shaped groove, it can limit the paddle II.

[0009] Furthermore, the electric actuator is initially extended.

[0010] Furthermore, the diameter of the waist-shaped groove is greater than the diameter of the limiting post.

[0011] Furthermore, the electromagnet is driven synchronously with the electric push rod.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] No manual mechanical locking is required. Once the hydraulic outriggers are adjusted, automatic locking is achieved, preventing the display frame connected to the hydraulic outriggers from resetting and falling due to gravity or hydraulic system failure, which could cause damage to people or items below the display frame. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention.

[0015] Figure 2 This is a cross-sectional view of the locking member I in the frontal view of this utility model.

[0016] Figure 3 This is a schematic diagram showing the locking member I and locking member II in their mating state.

[0017] Figure 4This is a perspective view of the locking component I in this utility model.

[0018] In the diagram: 1. Outrigger body; 3. Locking component I; 31. Fixing bolt; 32. Fixing clamp; 33. Paddle I; 34. Control box; 35. Electromagnet; 36. Tension spring; 37. Ratchet; 38. Positioning sleeve; 4. Locking component II; 41. Electric push rod; 42. Spring pin; 43. Paddle II; 44. Waist-shaped groove; 45. Limiting post. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example

[0021] like Figures 1 to 4 As shown, this embodiment provides a locking mechanism for a hydraulic outrigger, including an outrigger body 1. The outrigger body 1 includes a support part and an adjustment part. A locking mechanism is installed at the hinge of the support part and the adjustment part. The locking mechanism includes a locking member I3 and a locking member II4.

[0022] The locking component I3 includes two fixing plates 32. The tops of the two fixing plates 32 are connected to fixing bolts 31 via installed positioning bolts. The fixing bolts 31 are threaded into pre-set screw holes in the support portion, thus fixing the locking component I3. A positioning sleeve 38 is installed between the two fixing plates 32. A ratchet 37 is fixed to the outer ring of the positioning sleeve 38, and the inner ring of the positioning sleeve 38 is installed outside the rotating pin of the support portion and the adjusting portion and rotates synchronously with it (e.g., ...). Figure 4As shown, (it can be linked by inserting it into the internal slot). A paddle I33 for limiting the ratchet 37 is also hinged between the two fixed clamping plates 32 via a pin. The paddle I33 abuts into the ratchet groove of the ratchet 37. A control box 34, installed between the two fixed clamping plates 32, is located at the end of the paddle I33 away from the ratchet 37. The paddle I33 is connected to the control box 34 via a tension spring 36, realizing the springback reset function after being paddled. An electric device for magnetically attracting the paddle I33 is installed inside the control box 34. When magnet 35 and electromagnet 35 are energized, they attract the lever I33, causing the lever I33 to move away from ratchet 37. At this time, the adjustment part can rotate clockwise to adjust the angle. Here, it is set that the adjustment part of this hydraulic outrigger is in the unfolded state when it is working in the initial state. When it is unfolded, it synchronously drives ratchet 37 to rotate counterclockwise. When electromagnet 35 is not energized, the lever I33 is inserted into the ratchet groove of ratchet 37, which does not affect its counterclockwise rotation, but can also lock it in the clockwise direction.

[0023] To achieve better stability, a cavity is provided inside the support part, and the locking part II4 is installed in the cavity. Specifically, it includes an electric push rod 41 installed on the back of the support part. The output end of the electric push rod 41 passes through the back of the support part and extends into the cavity. The output end of the electric push rod 41 is hinged to a paddle II43 adapted to the ratchet 37 through a spring pin 42, which also realizes the function of paddle II43 springing back and resetting. An opening is provided on the left side of the cavity for paddle II43 to pass through.

[0024] The middle of the paddle II 43 has a waist-shaped groove 44. The fixed clamp 32 located behind it is welded with a limiting post 45. The diameter of the waist-shaped groove 44 is larger than the diameter of the limiting post 45 so as not to affect the paddle II 43 when the ratchet 37 rotates counterclockwise, so that it has a sufficient paddle area. After the limiting post 45 is inserted into the waist-shaped groove 44, it can limit the paddle II 43. It should be noted that the initial position of the electric push rod 41 is the extended state, that is, in the extended state, the paddle II 43 is in contact with the ratchet 35. When the electric push rod 41 is started, it retracts, which drives the paddle II 43 to move backward, so that it disengages from the ratchet 35. At this time, the ratchet 35 can rotate clockwise.

[0025] This embodiment describes a locking mechanism for a hydraulic outrigger. It should be noted that the electromagnet 35 and the electric push rod 41 should be driven synchronously by a single control switch. Specifically, when the hydraulic outrigger needs to be reset (i.e., when folding and retracting after use, the ratchet 37 needs to rotate clockwise, requiring the locking action to be canceled), the hydraulic system transmits a signal to the control switch while operating. The control switch energizes the electromagnet 35 to attract the lever I33, and simultaneously controls the electric push rod 41 to retract, causing the lever II43 to move backward. At this time, both lever I33 and lever II43 are out of the rotation range of the ratchet 37, canceling the angle locking action. After the reset is complete, the hydraulic system stops operating, and this signal is transmitted to the control switch again. The control switch de-energizes the electromagnet 35, the lever I33 resets via the tension spring 36, and the electric push rod 41 extends, thus achieving the limiting locking action of lever I33 and lever II43 on the ratchet 37.

[0026] It should be noted that the structure described in this utility model can be implemented in many different forms and is not limited to the embodiments described. Any equivalent transformations made by those skilled in the art based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, such as the loading and unloading of other items, are included within the protection scope of this utility model.

Claims

1. A locking mechanism for a hydraulic outrigger, comprising an outrigger body, characterized in that: The outrigger body includes a support part and an adjustment part. A locking mechanism is installed at the hinge joint between the support part and the adjustment part. The locking mechanism includes a locking element I. The locking component I includes two fixed clamping plates. The top ends of the two fixed clamping plates are connected to fixed bolts by installed positioning bolts. The fixed bolts are threadedly connected to the screw holes of the support part. A positioning sleeve is installed between the two fixed clamping plates. A ratchet is fixed to the outer ring of the positioning sleeve. The inner ring of the positioning sleeve is installed outside the rotating pin of the support part and the adjusting part and rotates synchronously with it. A lever I for limiting the ratchet is also hinged between the two fixed clamping plates by a pin shaft. A control box is installed between the two fixed clamping plates at the end of the lever I away from the ratchet. The lever I is connected to the control box by a tension spring. An electromagnet for magnetically attracting the lever I is installed inside the control box.

2. The locking mechanism for a hydraulic outrigger as described in claim 1, characterized in that: The support part also has a cavity inside, and a locking component II is installed inside the cavity. The locking component II includes an electric push rod installed on the back of the support part. The output end of the electric push rod passes through the back of the support part and extends into the cavity. The output end of the electric push rod is hinged to a paddle II that is adapted to the ratchet by a spring pin. An opening for the paddle II to pass through is provided on the left side of the cavity. The middle part of the paddle II has a waist-shaped groove, and the fixed clamp at the rear is welded with a limit post. After the limit post is inserted into the waist-shaped groove, it can limit the paddle II.

3. The locking mechanism for a hydraulic outrigger as described in claim 2, characterized in that: The electric actuator is initially extended.

4. The locking mechanism for a hydraulic outrigger as described in claim 2, characterized in that: The diameter of the waist-shaped groove is greater than the diameter of the limiting post.

5. The locking mechanism for a hydraulic outrigger as described in claim 4, characterized in that: The electromagnet is driven synchronously with the electric push rod.

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