Hood locking structure, hood and operation machine
By adopting a simplified lock body and lock hook design in the hood lock structure, the pressing action of the lock core drives the separation or connection between the lock tongue assembly and the lock hook, the problem of large space occupancy of the existing lock structure is solved, realizing the A wider range of use and a more compact structure.
Patent Information
- Application Number
- CN202420524144.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-18
AI Technical Summary
The existing hood locking structure occupies a large space, resulting in limited use range and cannot be used in scenarios where the hood installation space is small.
The hood locking structure is adopted that includes a lock body and a lock hook. The lock body is composed of a bracket, a lock tongue assembly and a lock cylinder. The lock cylinder separates or connects the lock tongue assembly and the lock hook through pressing, simplifying the motion transmission structure.
It significantly reduces the installation and action space of the hood locking structure, expands the scope of use, and is suitable for use in narrow spaces.
Smart Images
Figure CN222501361U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of operating machinery, in particular to a hood locking structure, a hood and an operating machinery. Background Art
[0002] The hood of a work machine refers to the outer cover used to cover and protect the parts of the work machine. In order to facilitate maintenance and repair, the hood can usually be rotated to open and close and is equipped with a locking structure.
[0003] At present, the locking structure generally achieves locking and unlocking of the hood by pulling the handle outward, which drives the pull rod structure to move. However, this structure is relatively complex and requires a large space, which limits its scope of use and cannot be used in scenarios where the installation space of the hood is small. Utility Model Content
[0004] In view of this, the utility model provides a hood locking structure, a hood and an operating machine to solve the problem that the locking structure occupies a large space, resulting in a limited scope of use.
[0005] In a first aspect, the utility model provides a hood locking structure, comprising:
[0006] A lock body and a lock hook, one of which is suitable for being arranged on a hood body of the hood, and the other is suitable for being arranged on a hood cover of the hood;
[0007] The lock body includes:
[0008] Bracket;
[0009] A locking tongue assembly is rotatably disposed on the bracket;
[0010] A lock cylinder is movably arranged on the bracket;
[0011] The lock core has a pressed position and a released position. In the pressed position, the lock core moves along its axial direction and drives the lock tongue assembly to separate from the lock hook to unlock the hood body and the hood cover; in the released position, the lock core moves in the opposite direction along its axial direction, and the lock tongue assembly is connected to the lock hook to lock the hood body and the hood cover.
[0012] Beneficial effect: The utility model unlocks the hood by pressing the lock core, causing the lock core to move along its axial direction and drive the lock tongue assembly to separate from the lock hook. After loosening the lock core, the lock tongue assembly is connected to the lock hook to achieve locking of the hood body and the hood cover. Compared with the traditional pull rod structure, the utility model simplifies the structure of motion transmission of the hood locking structure, significantly reduces the installation and action space of the hood locking structure, and expands the scope of use of the hood locking structure.
[0013] In an optional embodiment, the lock tongue assembly includes: a first sub-lock tongue and a second sub-lock tongue rotatably arranged on the bracket, the first sub-lock tongue abuts against the second sub-lock tongue, and the second sub-lock tongue can be connected to or separated from the lock hook;
[0014] In the pressed position, the lock core moves along its axial direction and drives the first sub-lock tongue to rotate, and the first sub-lock tongue drives the second sub-lock tongue to rotate, so that the second sub-lock tongue is separated from the lock hook;
[0015] In the released position, the second sub-lock tongue is connected to the lock hook.
[0016] Beneficial effect: by pressing the lock core, the lock core moves along its axial direction and drives the first sub-lock tongue to rotate, and the first sub-lock tongue then drives the second sub-lock tongue to rotate, so that the second sub-lock tongue is separated from the lock hook, the structure is compact and easy to use.
[0017] In an optional embodiment, a first rotating shaft and a second rotating shaft are spaced apart on the bracket, the axes of the first rotating shaft and the second rotating shaft are parallel to the axis of the lock core, the first sub-lock tongue can be rotatably disposed on the first rotating shaft, and the second sub-lock tongue can be rotatably disposed on the second rotating shaft.
[0018] Beneficial effect: The lock core can drive the first sub-lock tongue to rotate on the first rotating shaft, and the first sub-lock tongue can drive the second sub-lock tongue to rotate along the second rotating shaft at the same time, so as to separate the second sub-lock tongue from the lock hook, simplifying the overall structure. The axes of the first rotating shaft and the second rotating shaft are parallel to the axis of the lock core, and the first rotating shaft, the second rotating shaft and the lock core can be arranged in adjacent spaces, further reducing the installation and unlocking action space of the locking structure.
[0019] In an optional embodiment, a return spring is provided between the lock core and the bracket, a first torsion spring is provided between the first sub-lock tongue and the first rotating shaft, and a second torsion spring is provided between the second sub-lock tongue and the second rotating shaft.
[0020] Beneficial effect: The lock core is automatically moved in the opposite direction and reset along its axial direction through the reset spring. At the same time, the first sub-lock tongue is reset by the reverse rotation of the first torsion spring, and the second sub-lock tongue is reset by the reverse rotation of the second torsion spring, which simplifies the operation of the locking structure.
[0021] In an optional embodiment, a push plate is further provided at the end of the lock core, and the push plate is located on the inner side of the bracket;
[0022] The push plate includes a first plate body and a second plate body connected at an angle. The first plate body is sleeved on one end of the lock core located on the inner side of the bracket, and the second plate body is inclined toward one end of the lock core located on the outer side of the bracket. In the pressing position, the second plate body abuts against the first sub-lock tongue and pushes the first sub-lock tongue to rotate.
[0023] Beneficial effect: By arranging a push plate at the end of the lock core, the axial movement of the lock core can be converted into the rotation of the first sub-lock tongue. The plate body includes a first plate body and a second plate body connected at an angle. The first plate body is fixedly connected to the lock core, and the second plate body abuts against the first sub-lock tongue and pushes the first sub-lock tongue to rotate. The operation is simple and the reliability is higher.
[0024] In an optional embodiment, a key is further included, and the end surface of the lock core located on the outer side of the bracket is also provided with a key hole for use with the key, and the key drives the lock core and the push plate to rotate relative to the bracket through the key hole.
[0025] Beneficial effect: After the hood body and the hood cover are locked, the key is inserted into the keyhole on the lock core to drive the lock core and the push plate to rotate, and the push plate is rotated to an area where it can no longer contact the first sub-lock tongue, so as to achieve locking. At this time, even if the lock core is pressed, since the push plate does not contact the first sub-lock tongue, the second sub-lock tongue and the lock hook remain connected, and the locking reliability of the hood body and the hood cover is also improved. When the hood cover needs to be opened, the lock core is driven by the key to rotate the push plate to an area where it can contact the first sub-lock tongue.
[0026] In a second aspect, the utility model further provides a hood, comprising:
[0027] hood body;
[0028] A hood cover is rotatably disposed on the hood body;
[0029] In the above-mentioned hood locking structure, one of the lock body and the lock hook is arranged on the hood body, and the other is arranged on the hood cover.
[0030] Beneficial effect: Because the hood includes a hood locking structure, it has the same effect as the hood locking structure, that is, by pressing the lock core, the lock core moves along its axial direction and drives the lock tongue assembly to separate from the lock hook to achieve unlocking of the hood. After releasing the lock core, the lock tongue assembly is connected to the lock hook to achieve locking of the hood body and the hood cover. Compared with the traditional pull rod structure, the structure of the motion transmission of the hood locking structure is simplified, the installation and action space of the hood locking structure is significantly reduced, and the scope of use of the hood locking structure is expanded.
[0031] In an optional embodiment, the hood body is provided with an opening and reinforcing ribs are provided along the peripheral wall of the opening, and a rubber strip is also provided on the reinforcing ribs, and the hood cover is rotatably provided at the opening.
[0032] Beneficial effect: The hood body is provided with an opening and a reinforcing rib is provided along the peripheral wall of the opening, which can improve the structural strength of the hood body. A rubber strip is also provided on the reinforcing rib, and the hood cover is rotatably provided at the opening. After the hood cover is closed, the hood cover can press the rubber strip by its own weight, and the rubber strip can play a buffering role to prevent the hood cover and the hood body from shaking under vibration conditions.
[0033] In an optional embodiment, a plurality of limit blocks are provided at intervals on the opening, and the inner circumference of the hood cover extends to form a limit arc strip. When the hood cover and the hood body are locked, the outer end face of the limit block abuts against the inner end face of the hood cover, and the side face of the limit block abuts against the limit arc strip.
[0034] Beneficial effect: When the hood cover and the hood body are locked, the locking of the lock body and the lock hook and the limiting of the limit block can further play a buffering role and improve the stability of the hood cover and the hood body under vibration conditions.
[0035] In a third aspect, the utility model further provides an operating machine, comprising: the above-mentioned hood locking structure or hood.
[0036] Beneficial effects: The utility model simplifies the structure of the motion transmission of the hood locking structure, significantly reduces the installation and action space of the hood locking structure, is suitable for use in a small space, and expands the scope of use of the hood locking structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0038] Figure 1 This is a structural schematic diagram of a hood locking structure in a hood closed state according to an embodiment of the utility model;
[0039] Figure 2 This is a structural schematic diagram of a hood locking structure of an embodiment of the utility model in a hood open state;
[0040] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;
[0041] Figure 4 This is a schematic diagram of the structure of the hood locking structure of an embodiment of the utility model on the hood;
[0042] Figure 5 for Figure 4 The enlarged schematic diagram of point B in FIG.
[0043] Figure 6 This is a structural schematic diagram of a lock body of a hood locking structure according to an embodiment of the utility model;
[0044] Figure 7A schematic diagram of a partial structure of a hood body of an hood according to an embodiment of the utility model;
[0045] Figure 8 The utility model is a schematic structural diagram of a gasket of a hood according to an embodiment of the utility model.
[0046] Description of reference numerals:
[0047] 1. Lock body; 101. Bracket; 102. Lock tongue assembly; 1021. First sub-lock tongue; 1022. Second sub-lock tongue; 103. Lock core; 104. Push plate; 105. First rotating shaft; 106. Second rotating shaft; 107. First torsion spring; 108. Second torsion spring; 2. Lock hook; 3. Hood body; 301. Opening; 4. Hood cover; 5. Reinforcing ribs; 6. Rubber strip; 7. Limit block; 8. First mounting plate; 9. First mounting hole; 10. First gasket. DETAILED DESCRIPTION
[0048] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0049] The existing hood locking structure uses a pull rod structure to achieve hood locking and unlocking, which requires a large installation space and leads to a limited scope of use. The embodiment of the utility model presses the lock core to drive the lock tongue assembly to separate from the lock hook to achieve hood unlocking, simplifies the mechanism of motion transmission, significantly reduces the installation and unlocking action space, can meet the use requirements of small spaces, and improve the scope of use of the hood locking structure.
[0050] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.
[0051] According to an embodiment of the present utility model, on the one hand, as Figures 1 to 3As shown, a hood locking structure is provided, including: a lock body 1 and a lock hook 2. One of the lock body 1 and the lock hook 2 is suitable for being arranged on the hood body 3 of the hood, and the other is suitable for being arranged on the hood cover 4 of the hood. The lock body 1 mainly includes: a bracket 101, a lock tongue assembly 102 and a lock core 103. The lock tongue assembly 102 is rotatably arranged on the bracket 101. The lock core 103 is movably arranged on the bracket 101. The lock core 103 has a pressing position and a releasing position. In the pressing position, the lock core 103 moves along its axial direction and drives the lock tongue assembly 102 to separate from the lock hook 2, so that the hood body 3 and the hood cover 4 are unlocked. In the releasing position, the lock core 103 moves in the opposite direction along its axial direction, and the lock tongue assembly 102 is connected with the lock hook 2, so that the hood body 3 and the hood cover 4 are locked.
[0052] The embodiment of the utility model presses the lock core 103 to move the lock core 103 along its axial direction and drive the lock tongue assembly 102 to separate from the lock hook 2 to unlock the hood. After the lock core 103 is released, the lock tongue assembly 102 is connected to the lock hook 2 to lock the hood. Compared with the traditional pull rod structure, the structure of the motion transmission of the hood locking structure is simplified, the installation and action space of the hood locking structure is significantly reduced, and it can be used in a small space, thereby expanding the scope of use of the hood locking structure.
[0053] Specifically, the inner side and the outer side of the bracket 101 refer to the inner side and the outer side relative to the hood. Figure 7 After the hood cover 4 and the hood body 3 are closed, the lock tongue assembly 102 is connected to the lock hook 2, and the hood body 3 and the hood cover 4 are locked. If the hood cover 4 needs to be opened, the hood body 3 and the hood cover 4 need to be unlocked first, and the lock cylinder 103 can be pressed.
[0054] It should be noted that the embodiment of the utility model does not limit the structure of the lock hook 2, as long as the lock hook 2 can be separated or connected with the lock tongue assembly 102 to unlock or lock the hood body 3 and the hood cover 4. For example, the lock hook 2 can be selected to be ring-shaped, hook-shaped, etc., with a simple structure and convenient use.
[0055] In addition, the embodiment of the present utility model does not limit the locking tongue assembly 102. The locking tongue assembly 102 can select any existing structure as needed.
[0056] In one embodiment, Figure 3 and Figure 6As shown, the lock tongue assembly 102 includes: a first sub-lock tongue 1021 and a second sub-lock tongue 1022 rotatably disposed on the bracket 101. The first sub-lock tongue 1021 abuts against the second sub-lock tongue 1022, and the second sub-lock tongue 1022 can be connected to or separated from the lock hook 2. In the pressing position, the lock core 103 moves along its axial direction and drives the first sub-lock tongue 1021 to rotate, and the first sub-lock tongue 1021 drives the second sub-lock tongue 1022 to rotate, so that the second sub-lock tongue 1022 is separated from the lock hook 2. In the release position, the second sub-lock tongue 1022 is connected to the lock hook 2.
[0057] Specifically, the first sub-lock tongue 1021 and the second sub-lock tongue 1022 are respectively provided with legs, and the two legs are in contact with each other. The first sub-lock tongue 1021 drives the second sub-lock tongue 1022 to rotate through the two legs. In order to facilitate the connection or separation of the second sub-lock tongue 1022 with the lock hook 2, the second sub-lock tongue 1022 can be hook-shaped. When the hood cover 4 is closed, the length direction of the lock hook 2 forms an angle of about 90 degrees with the axis direction of the lock core 103 to prevent the installation position of the lock hook 2 from affecting the opening and closing of the hood cover 4.
[0058] Specifically, Figure 1 , Figure 4 and Figure 5 As shown, when the hood cover 4 is closed, the lock core 103 is in the released position. The second sub-lock tongue 1022 is engaged with the lock hook 2 so that the hood body 3 and the hood cover 4 are locked after closing.
[0059] When the hood cover 4 needs to be opened, the lock core 103 is in the pressing position. By pressing the lock core 103, the lock core 103 moves along its axial direction toward the inner side of the bracket 101, and at the same time drives the first sub-lock tongue 1021 to rotate, and the first sub-lock tongue 1021 then drives the second sub-lock tongue 1022 to rotate, so that the second sub-lock tongue 1022 is separated from the lock hook 2, so that the hood body 3 and the hood cover 4 are unlocked, and the hood cover 4 can be lifted up at this time. Figure 2 As shown. Compact structure, easy to use.
[0060] Further, in one embodiment, if Figure 3As shown, the bracket 101 is provided with a first rotating shaft 105 and a second rotating shaft 106 at intervals. The axes of the first rotating shaft 105 and the second rotating shaft 106 are parallel to the axis of the lock core 103, the first sub-lock tongue 1021 is rotatably provided on the first rotating shaft 105, and the second sub-lock tongue 1022 is rotatably provided on the second rotating shaft 106. The lock core 103 can drive the first sub-lock tongue 1021 to rotate on the first rotating shaft 105, and the first sub-lock tongue 1021 rotates while driving the second sub-lock tongue 1022 to rotate along the second rotating shaft 106, so that the second sub-lock tongue 1022 is separated from the lock hook 2, simplifying the overall structure. The axes of the first rotating shaft 105 and the second rotating shaft 106 are parallel to the axis of the lock core 103, and the first rotating shaft 105, the second rotating shaft 106 and the lock core 103 can be arranged in adjacent spaces, further reducing the installation and unlocking action space of the locking structure.
[0061] Furthermore, in one embodiment, if Figure 3 As shown, a return spring is provided between the lock core 103 and the bracket 101. A first torsion spring 107 is provided between the first sub-lock tongue 1021 and the first rotating shaft 105, and a second torsion spring 108 is provided between the second sub-lock tongue 1022 and the second rotating shaft 106. In the pressed position, the return spring is compressed, and the first torsion spring 107 and the second torsion spring 108 are also compressed. After the lock core 103 is released, the lock core 103 automatically moves in the opposite direction and returns to its original position along its axial direction through the return spring. The first sub-lock tongue 1021 is returned to its original position by the first torsion spring 107, and the second sub-lock tongue 1022 is returned to its original position by the second torsion spring 108, which simplifies the operation of the locking structure.
[0062] When the hood cover 4 of the embodiment of the utility model is switched from the open state to the closed state, the lock hook 2 first contacts the second sub-lock tongue 1022 and drives the second sub-lock tongue 1022 to rotate around the second rotating shaft 106, and the second torsion spring 108 is compressed. At the same time, the second torsion spring 108 can ensure that the second sub-lock tongue 1022 rotates within a certain range. After the second sub-lock tongue 1022 rotates to a certain angle, the lock hook 2 enters the preset position and disengages from the second sub-lock tongue 1022. The second torsion spring 108 drives the second sub-lock tongue 1022 to reset, and the second sub-lock tongue 1022 is clamped at the lock hook 2, so that the hood cover 4 and the hood body 3 are locked.
[0063] In one embodiment, a push plate 104 is further provided at the end of the lock core 103, and the push plate 104 is located on the inner side of the bracket 101. The push plate 104 includes a first plate body and a second plate body connected at an angle, the first plate body is sleeved on one end of the lock core 103 located on the inner side of the bracket 101, and the second plate body is inclined toward one end of the lock core 103 located on the outer side of the bracket 101. In the pressing position, the second plate body abuts against the first sub-lock tongue 1021 and pushes the first sub-lock tongue 1021 to rotate.
[0064] For ease of use, the first sub-lock tongue 1021 can extend toward the push plate 104 to form a columnar protrusion so as to contact the inclined surface of the second plate body. Since the second plate body is inclined, the linear motion of the lock core 103 along its axial direction can be converted into the rotation of the first sub-lock tongue 1021. The first plate body is fixedly connected to the lock core 103, and then the second plate body abuts against the first sub-lock tongue 1021 and pushes the first sub-lock tongue 1021 to rotate, which is simple to operate and more reliable.
[0065] In one embodiment, the hood locking structure also includes a key, and the end surface of the lock core 103 located outside the bracket 101 is also provided with a keyhole for use with the key. The key drives the lock core 103 and the push plate 104 to rotate relative to the bracket 101 through the keyhole.
[0066] After the hood body 3 and the hood cover 4 of the embodiment of the utility model are locked, the key is inserted into the keyhole on the lock core 103 to drive the lock core 103 and the push plate 104 to rotate, and the push plate 104 is rotated to an area where it can no longer contact the first sub-lock tongue 1021 to achieve locking. At this time, even if the lock core 103 is pressed, since the push plate 104 does not contact the first sub-lock tongue 1021, the second sub-lock tongue 1022 remains connected to the lock hook 2, and the locking reliability of the hood body 3 and the hood cover 4 is also improved.
[0067] When the hood cover 4 needs to be opened, the key is used to drive the lock core 103 to rotate the push plate 104 to an area where it can contact the first sub-lock tongue 1021. Figure 5 As shown, the push plate 104 is rotated to a state where it can contact the first sub-lock tongue 1021.
[0068] For example, when the push plate 104 is in a horizontal position, the lock core 103 drives the push plate 104 to move toward the inner side of the bracket 101, which can drive the first sub-lock tongue 1021 to rotate. When the lock core 103 and the push plate 104 are rotated 90 degrees to a vertical position by the key, the lock core 103 is pressed, and the push plate 104 can no longer contact the first sub-lock tongue 1021, so that the hood cover 4 and the hood body 3 are locked, and the operator can be prevented from accidentally touching the lock core 103 to open the hood cover 4, which is safer.
[0069] According to an embodiment of the utility model, on the other hand, a hood is also provided, which mainly includes: a hood body 3, a hood cover 4 and a hood locking structure. The hood cover 4 is rotatably arranged on the hood body 3. One of the lock body 1 and the lock hook 2 is arranged on the hood body 3, and the other is arranged on the hood cover 4.
[0070] Because the hood includes a hood locking structure, it has the same effect as the hood locking structure, that is, by pressing the lock core 103, the lock core 103 moves along its axial direction and drives the lock tongue assembly 102 to separate from the lock hook 2 to achieve unlocking of the hood. After loosening the lock core 103, the lock tongue assembly 102 is connected to the lock hook 2 to achieve locking of the hood. Compared with the traditional pull rod structure, the structure of the motion transmission of the hood locking structure is simplified, the installation and action space of the hood locking structure is significantly reduced, and the scope of use of the hood locking structure is expanded.
[0071] It should be noted that the embodiment of the utility model does not limit the rotation structure of the hood cover 4 and the hood body 3. In order to facilitate use and reduce costs, in one embodiment, Figure 2 As shown, the hood cover 4 is mounted on the hood body 3 through a pair of hinges. The lock body 1 is fixedly arranged on the hood cover 4 by bolts. The lock hook 2 is fixedly arranged on the hood body 3 by bolts.
[0072] In one embodiment, Figure 7 As shown, the hood body 3 is provided with a first mounting plate 8, and the first mounting plate 8 is provided with a first mounting hole 9. The lock hook 2 can be fixed at different positions of the first mounting hole 9 as required, so as to adjust the relative position of the lock hook 2.
[0073] Similarly, the hood cover 4 is provided with a second mounting plate, and the second mounting plate is provided with a second mounting hole. The lock body 1 can be fixed at different positions of the second mounting hole as required, so as to adjust the relative position of the lock body 1.
[0074] Specifically, the first mounting hole 9 and the second mounting hole can be waist-shaped holes. The lock body 1 and the lock hook 2 can form adjustment margins in multiple directions through the first mounting hole 9 and the second mounting hole to reduce the difficulty of manufacturing, installing and debugging the lock body 1 and the lock hook 2.
[0075] Further, in one embodiment, if Figure 8 As shown, a first gasket 10 is also provided on the first mounting plate 8. The relative position of the lock body 1 can be indirectly adjusted by selecting the thickness of the first gasket 10. Similarly, a second gasket is provided on the second mounting plate. The relative position of the lock hook 2 can be indirectly adjusted by selecting the thickness of the second gasket. The structure is simple and the installation position of the lock body 1 and the lock hook 2 can be adjusted conveniently.
[0076] In one embodiment, Figure 2 As shown, the hood body 3 is provided with an opening 301 and a reinforcing rib 5 is provided along the peripheral wall of the opening 301, which can improve the structural strength of the hood body 3. A rubber strip 6 is also provided on the reinforcing rib 5, and the hood cover 4 is rotatably arranged at the opening 301. After the hood cover 4 is closed, the hood cover 4 can press the rubber strip 6 by its own weight, and the rubber strip 6 can play a buffering role to prevent the hood cover 4 and the hood body 3 from shaking under vibration conditions.
[0077] Furthermore, in one embodiment, a plurality of limit blocks 7 are provided at intervals on the opening 301, and the inner periphery of the hood cover 4 extends to form a limit arc strip. When the hood cover 4 is locked with the hood body 3, the outer end surface of the limit block 7 abuts against the inner end surface of the hood cover 4, and the side surface of the limit block 7 abuts against the limit arc strip. The limit block 7 can simultaneously limit the shaking of the hood cover 4 toward the inside and outside directions and the left and right directions of the hood body 3. When the hood cover 4 is locked with the hood body 3, the locking of the lock body 1 and the lock hook 2 and the limiting of the limit block 7 can further play a buffering role, thereby improving the stability of the hood cover 4 and the hood body 3 under vibration conditions.
[0078] It should be noted that the embodiment of the utility model does not limit the number of limit blocks 7, and the limit blocks 7 can be set to two, three or more as needed. Figure 2 As shown, two limit blocks 7 are provided, which are respectively located at two corners of the hood body 3 close to the locking hook 2 .
[0079] According to an embodiment of the present utility model, in another aspect, a working machine is provided, comprising: the above-mentioned hood locking structure or hood.
[0080] The embodiment of the utility model simplifies the structure of the motion transmission of the hood locking structure, significantly reduces the installation and unlocking action space of the hood locking structure, is suitable for use in a small space, and expands the application range of the hood locking structure.
[0081] Specifically, the working machinery includes but is not limited to excavators, cranes, pile drivers, mixers, etc.
[0082] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A hood locking structure, characterized in that: include: A lock body (1) and a lock hook (2), one of which is suitable for being arranged on a hood body (3) of the hood, and the other of which is suitable for being arranged on a hood cover (4) of the hood; The lock body (1) comprises: Bracket (101); A locking tongue assembly (102) rotatably disposed on the bracket (101); A lock core (103) movably disposed on the bracket (101); The lock core (103) has a pressing position and a releasing position. In the pressing position, the lock core (103) moves along its axial direction and drives the lock tongue assembly (102) to separate from the lock hook (2), so that the hood body (3) and the hood cover (4) are unlocked; in the releasing position, the lock core (103) moves in the opposite direction along its axial direction, and the lock tongue assembly (102) is connected to the lock hook (2), so that the hood body (3) and the hood cover (4) are locked.
2. The hood locking structure according to claim 1, characterized in that: The lock tongue assembly (102) comprises: a first sub-lock tongue (1021) and a second sub-lock tongue (1022) rotatably arranged on the bracket (101); the first sub-lock tongue (1021) abuts against the second sub-lock tongue (1022); and the second sub-lock tongue (1022) can be connected to or separated from the lock hook (2); At the pressing position, the lock core (103) moves along its axial direction and drives the first sub-lock tongue (1021) to rotate, and the first sub-lock tongue (1021) drives the second sub-lock tongue (1022) to rotate, so that the second sub-lock tongue (1022) is separated from the lock hook (2); In the released position, the second sub-lock tongue (1022) is connected to the lock hook (2).
3. The hood locking structure according to claim 2, characterized in that: A first rotating shaft (105) and a second rotating shaft (106) are arranged on the bracket (101) at intervals, and the axes of the first rotating shaft (105) and the second rotating shaft (106) are parallel to the axis of the lock core (103); the first sub-lock tongue (1021) is rotatably arranged on the first rotating shaft (105), and the second sub-lock tongue (1022) is rotatably arranged on the second rotating shaft (106).
4. The hood locking structure according to claim 3, characterized in that: A return spring is provided between the lock core (103) and the bracket (101), a first torsion spring (107) is provided between the first sub-lock tongue (1021) and the first rotating shaft (105), and a second torsion spring (108) is provided between the second sub-lock tongue (1022) and the second rotating shaft (106).
5. The hood locking structure according to claim 2, characterized in that: A push plate (104) is also provided at the end of the lock core (103), and the push plate (104) is located on the inner side of the bracket (101); The push plate (104) comprises a first plate body and a second plate body connected at an angle, the first plate body being sleeved on one end of the lock core (103) located on the inner side of the bracket (101), and the second plate body being inclined toward one end of the lock core (103) located on the outer side of the bracket (101), and in the pressing position, the second plate body abuts against the first sub-lock tongue (1021) and pushes the first sub-lock tongue (1021) to rotate.
6. The hood locking structure according to claim 5, characterized in that: A key is also included, and the end surface of the lock core (103) located outside the bracket (101) is also provided with a key hole for use with the key, and the key drives the lock core (103) and the push plate (104) to rotate relative to the bracket (101) through the key hole.
7. A hood, characterized in that: include: Hood body (3); A hood cover (4) rotatably disposed on the hood body (3); According to any one of claims 1 to 6, one of the lock body (1) and the lock hook (2) is arranged on the hood body (3), and the other is arranged on the hood cover (4).
8. The hood according to claim 7, characterized in that The hood body (3) is provided with an opening (301) and reinforcing ribs (5) are provided along the peripheral wall of the opening (301), and a rubber strip (6) is also provided on the reinforcing ribs (5), and the hood cover (4) is rotatably arranged at the opening (301).
9. The hood according to claim 8, characterized in that A plurality of limit blocks (7) are also arranged at intervals on the opening (301), and the inner periphery of the hood cover (4) extends to form a limit arc strip. When the hood cover (4) and the hood body (3) are locked, the outer end surface of the limit block (7) abuts against the inner end surface of the hood cover (4), and the side surface of the limit block (7) abuts against the limit arc strip.
10. A working machine, characterized in that: include: The hood locking structure according to any one of claims 1 to 6 or the hood according to any one of claims 7 to 9.