Special hydraulic safety handle for excavator

Abstract

The hydraulic safety handle special for the excavator is characterized in that a through mounting hole is formed in the middle of a mounting groove, a battery box assembly is arranged on the other side of a handle assembly, two conductive elastic pieces are arranged on one side of the mounting groove, the positive electrode of the battery box assembly is connected with a ball switch through a wire, and the ball switch is obliquely arranged; the ball switch is connected with one conductive elastic piece through a wire, the negative electrode of the battery box assembly is connected with the other conductive elastic piece through a wire, the gear rod is convenient to replace, a professional tool is not needed, the maintenance time is shortened, and the equipment shutdown cost is reduced; when the handle is shifted to the horizontal position (unlocking state), the warning lamp flickers, a user is reminded to shift the handle to the vertical position (locking state) during getting on and off, the stop lever is prevented from being ignored and damaged, the replacement frequency of the safety lock handle is reduced, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to handle technical field, specifically a hydraulic safety handle special for excavator. BACKGROUND

[0002] Hydraulic safety lock is the important safety device of excavator, prevents the mistaken operation through cutting off the pilot oil pressure, ensures the safety when parking or driver leaving, and hydraulic safety lock connects safety lock handle, and safety lock handle is equivalent to the switch of pilot operating lever, when handle is in vertical position (lock state), pilot oil circuit is cut off, and handle is not operated at this time, prevents mistaken start or mistaken operation, and engine can be started and normal operation only when handle is dialled to horizontal position (unlock state), and the stopper of handle is stopped at the side of driving door when handle is dialled to horizontal position (unlock state), and the operator cannot get on and off to prevent the mistaken touch of operating lever.

[0003] The existing safety lock handle adopts integral design, and the damage frequency of safety lock handle caused by mistaken operation is as high as 6-12 months in actual use, the damage replacement frequency is high, the traditional integral safety lock handle needs to be disassembled and replaced, the operation is cumbersome and depends on professional tools, the maintenance time is increased, the equipment downtime cost is increased, in addition, the stopper of the existing safety lock handle is mostly bright red, but still lacks state visual feedback mechanism, and the operator can easily ignore and damage the stopper when getting on and off, the replacement frequency of safety lock handle is increased, and the maintenance cost is increased. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem in the prior art, and provides a hydraulic safety handle special for excavator to solve at least one of the above technical problems.

[0005] The utility model solves the technical problems in the prior art, and provides a hydraulic safety handle special for excavator to solve at least one of the above technical problems.

[0006] The stop lever assembly includes a mounting block, one side of the mounting block is connected with a stop lever, the mounting block is arranged in cooperation with a mounting groove, the mounting block is installed in the mounting groove through a connecting piece, the upper portion of the stop lever is provided with an alarm lamp assembly, the mounting block is provided with two conductive sheets, the positive and negative lead wires of the alarm lamp assembly are connected with the two conductive sheets respectively, and the two conductive sheets are arranged in one-to-one correspondence with two conductive elastic sheets respectively.

[0007] Further, the connecting piece is a buckle, the mounting groove is provided with a clamping groove corresponding to the buckle, and the clamping groove and the buckle are detachably connected.

[0008] Further, the mounting groove is provided with a plurality of positioning holes, and the mounting block is provided with a positioning rod which cooperates with the positioning holes.

[0009] Further, the mounting block is provided with a nut groove which is arranged in correspondence with the mounting hole.

[0010] Further, the stop lever is provided with a limiting block which is arranged in correspondence with the side edge of the handle assembly.

[0011] Further, the battery box assembly includes a battery groove and a cover plate which cooperates with the battery groove.

[0012] Further, the ball switch is inclined to one side of the mounting groove, and the inclination angle is 45 degrees.

[0013] The beneficial effects of the present application are as follows:

[0014] The present application is provided with a split buckle connection mode, when the stop lever is damaged, the stop lever can be directly replaced through the buckle mode, which is convenient and does not require professional tools, thereby reducing the maintenance time and the cost of equipment downtime, and the device is also provided with an alarm lamp assembly, when the handle is turned to the horizontal position (unlocked state), the alarm lamp flashes, and when getting on and off the vehicle, the user is reminded to turn the handle to the vertical position (locked state), so as to avoid neglecting and damaging the stop lever, reduce the replacement frequency of the safety lock handle, and reduce the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the present application.

[0016] Fig. 2 It is a structural schematic view of the handle assembly part of the present application.

[0017] Fig. 3 It is a structural schematic view of the stop lever assembly part of the present application.

[0018] Fig. 4 It is a structural schematic view of the mounting block part of the present application.

[0019] Fig. 5 Figure 1 is a schematic diagram of the ball switch part structure of the utility model.

[0020] In the drawings, the component list represented by each reference numeral is as follows:

[0021] Handle assembly 1; mounting groove 11; mounting hole 12; clamping groove 13; positioning hole 14; battery box assembly 15; ball switch 16; conductive spring 17; stop lever assembly 2; mounting block 21; stop lever 22; limiting block 23; nut groove 24; buckle 25; positioning rod 26; alarm lamp assembly 27; conductive sheet 28. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with specific embodiments, and it should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0023] Example one: refer to Figs. 1 to 5 It is the schematic diagram of each structure of the utility model, handle assembly 1, stop lever assembly 2, one side of handle assembly 1 is provided with mounting groove 11, the middle part of mounting groove 11 is provided with the mounting hole 12 that penetrates, for connecting safety lock lock shaft, the other side of handle assembly 1 is provided with battery box assembly 15, installs the battery power supply, one side of mounting groove 11 is provided with two conductive springs 17, adopts the way of spring piece to make the electric connection more reliable avoid circuit virtual connection, the positive pole of battery box assembly 15 is connected with ball switch 16 through wire, ball switch 16 is obliquely arranged, when stop lever is in vertical state, ball switch 16 is closed, when stop lever is in horizontal state, ball switch 16 opens and communicates circuit, ball switch 16 is connected with one conductive spring 17 through wire, the negative pole of battery box assembly 15 is connected with another conductive spring 17 through wire;

[0024] Stop lever assembly 2 includes mounting block 21, one side of mounting block 21 is connected with stop lever 22, limits user to get on and off, mounting block 21 is arranged in cooperation with mounting groove 11, mounting block 21 is installed in mounting groove 11 through connecting piece, connecting piece adopts quick release structure to facilitate the replacement of stop lever assembly, the upper portion of stop lever 22 is provided with alarm lamp assembly 27, alarm lamp flashes and reminds user, mounting block 21 is provided with two conductive sheets 28, the positive pole and the negative pole wire of alarm lamp assembly 27 are connected with two conductive sheets 28 respectively, two conductive sheets 28 are arranged one by one with two conductive springs 17 respectively, and are electrically connected with conductive spring 17 respectively.

[0025] Specifically, the connecting piece is a buckle 25, the mounting groove 11 is provided with a clamping groove 13 corresponding to the buckle 25, and the clamping groove 13 is detachably connected with the buckle 25.

[0026] Further, the mounting groove 11 is provided with a plurality of positioning holes 14, and the mounting block 21 is provided with a positioning rod 26 which is matched with the positioning holes 14 to avoid the wobble of the stop lever.

[0027] Specifically, the mounting block 21 is provided with a nut groove 24 which is arranged corresponding to the mounting hole 12 to provide a position for installing a nut.

[0028] Specifically, the stop lever 22 is provided with a limiting block 23 which is arranged corresponding to the side edge of the handle assembly 1 to avoid the wobble of the stop lever assembly.

[0029] Specifically, the battery box assembly 15 comprises a battery groove and a cover plate which is matched with the battery groove.

[0030] Specifically, the ball switch 16 is inclined to one side of the mounting groove 11 at an angle of 45 degrees, and the ball switch 16 is closed when the stop lever is in a horizontal state, and the ball switch 16 is closed when the stop lever is in a vertical state.

[0031] In use of the utility model, the battery is installed in the battery box, the handle assembly 1 is installed on the lock shaft of the hydraulic safety lock through a nut, the stop lever assembly is installed on the handle assembly 1 in cooperation, the conductive elastic sheet 17 is electrically connected with the conductive sheet 28, when the user pulls the stop lever vertically downward, the ball switch 16 is closed, the circuit is cut off, the pilot oil way is cut off, and the operating handle has no action at this time, the user gets on the vehicle to prevent misoperation or misoperation, after the user gets on the vehicle, the stop lever is pulled to the horizontal position (unlocked state), the ball switch 16 is opened, the circuit is closed, the alarm lamp flashes, the pilot oil way is communicated, the engine is started and normally operated, and when the stop lever is damaged, the stop lever assembly is removed and a new stop lever assembly is installed in cooperation.

[0032] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A hydraulic safety handle specific to an excavator, characterized by: Including handle assembly (1), baffle rod assembly (2), one side of handle assembly (1) is provided with installation slot (11), the middle part of installation slot (11) is provided with the installation hole (12) that penetrates, the other side of handle assembly (1) is provided with battery box assembly (15), one side of installation slot (11) is provided with two conductive spring (17), the positive pole of battery box assembly (15) is connected with ball switch (16) through wire, ball switch (16) is obliquely arranged, ball switch (16) is connected with one conductive spring (17) through wire, the negative pole of battery box assembly (15) is connected with another conductive spring (17) through wire; The baffle rod assembly (2) includes a mounting block (21), one side of the mounting block (21) is connected with a baffle rod (22), the mounting block (21) is arranged in cooperation with the mounting slot (11), the mounting block (21) is installed in the mounting slot (11) through a connecting piece, the upper portion of the baffle rod (22) is provided with an alarm lamp assembly (27), the mounting block (21) is provided with two conductive pieces (28), the positive and negative leads of the alarm lamp assembly (27) are connected with the two conductive pieces (28) respectively, and the two conductive pieces (28) are arranged one by one corresponding to the two conductive springs (17).

2. The hydraulic safety handle for excavators according to claim 1, characterized in that: The connecting piece is a buckle (25), the mounting slot (11) is provided with a clamping groove (13) corresponding to the buckle (25), and the clamping groove (13) and the buckle (25) are detachably connected.

3. The hydraulic safety handle for excavators as claimed in claim 1, wherein: The mounting slot (11) is provided with a plurality of positioning holes (14), and the mounting block (21) is provided with a positioning rod (26).

4. The hydraulic safety handle for excavators according to claim 1, characterized in that: The mounting block (21) is provided with a nut groove (24), and the nut groove (24) is provided corresponding to the mounting hole (12).

5. The hydraulic safety handle for excavators according to claim 1, characterized in that: The baffle rod (22) is provided with a limiting block (23), and the limiting block (23) is arranged corresponding to the side edge of the handle assembly (1).

6. The hydraulic safety handle for excavators according to claim 1, characterized in that: The battery box assembly (15) includes a battery slot and a cover plate, and the cover plate cooperates with the battery slot.

7. The hydraulic safety handle for excavators according to claim 1, characterized in that: The ball switch (16) is inclined to one side of the mounting slot (11) and the inclination angle is 45 degrees.

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