Forward moving fork lift truck and front support mechanism for a forward moving fork lift truck

Abstract

The utility model provides a front -moving formula forklift truck and is used for front -moving formula forklift truck's front support mechanism, wherein front support mechanism includes: the push -pull block that moves with the door frame can be synchronous in the left and right sides of door frame respectively setting, the support leg that is respectively arranged in the left support and the right support's at respective walking wheel's front position, support leg constructs as when being subjected to downward external force respectively relative to left support and right support can move downward, and can rebound to initial position when external force is given up, the push -pull rod that is respectively arranged in the inside of left support and right support is arranged along the front -back direction and is connected to push -pull block, push -pull rod constructs as relative to left support and right support can move back and forth under the push -pull of push -pull block, to make its one end of leaning forward depress or separate from corresponding support leg, realize to support leg and add or give up external force. According to the front support mechanism provided by the utility model, the forklift truck gravity center can be moved back, and the stability of the forklift truck operation is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a carrying equipment field especially relates to a front moving type forklift and be used for front moving type forklift's front support mechanism. BACKGROUND

[0002] Forklift is industrial carrying vehicle, refers to the various wheel type carrying vehicle of loading and unloading, stacking and short distance transport operation to piece pallet goods, is commonly used in the transport of warehouse large object, usually uses fuel engine or battery drive. Main technical parameters have: rated lifting capacity, load center distance, maximum lifting height, door frame inclination, maximum travel speed, minimum turning radius, minimum ground clearance and wheelbase, tread and the like.

[0003] Among them, along with the high-speed development of China's manufacturing industry and logistics industry, the storage of automatic warehouse has become a basic demand of various trades, and the front moving type forklift is more and more widely used due to its environmental protection, energy saving, low noise, high lifting, small operation space and other characteristics, especially AGV forklift.

[0004] In the process of realizing the utility model, the inventor finds that there are at least the following problems in the prior art:

[0005] The structure gravity center adjustment of the chassis mechanism of the current front moving type forklift can only balance the gravity center and stabilize the vehicle body by increasing the counterweight or lengthening the vehicle body.

[0006] Therefore, a front moving type forklift and a front support mechanism for the front moving type forklift are needed to at least partially solve the above technical problems. INVENTION CONTENTS

[0007] The utility model embodiment provides a kind of front moving type forklift and front support mechanism for front moving type forklift, realize forklift gravity center rear shift, enhance the stability of vehicle body when forklift operation.

[0008] Firstly, the utility model provides a kind of front support mechanism for front moving type forklift, and the forklift includes left support, right support and the door frame being set between left support and right support, the door frame is relative to left support and right support and can be moved forward and backward along front and back direction, and the front support mechanism includes:

[0009] push-pull block that can be synchronously moved forward and backward with the door frame is respectively arranged at the left and right sides of the door frame;

[0010] support leg is respectively arranged at the front position of respective travelling wheel of left support and right support, and the support leg is configured to be downwardly moved relative to left support and right support when subjected to external force downward, and can rebound to initial position when the external force is cancelled;Wherein, the travelling wheel is respectively located at the middle position of left support and right support;And

[0011] Push-pull rods, arranged in the front-to-back direction and connected to the push-pull block, are respectively disposed inside the left and right supports. The push-pull rods are configured to move back and forth relative to the left and right supports under the push-pull block, so that the front end of the push-pull rod is pressed down or disengaged from the corresponding support leg, thereby applying or removing the external force to the support leg.

[0012] According to the front support mechanism of this utility model, support legs are provided in front of the travel wheels of the left and right supports respectively. The support legs can be raised and lowered under the action of push-pull blocks and push-pull rods, so that the two support legs can be supported on the ground or other work platforms. This is equivalent to adding two support points in front of the forklift, realizing the rearward shift of the forklift's center of gravity and enhancing the stability of the forklift during operation.

[0013] Secondly, this utility model also provides a reach truck, including the front support mechanism described above.

[0014] According to the present invention, the reach truck adopts the front support mechanism of the present invention, which enables the left and right supports to have liftable support legs in front of their respective traveling wheels. This allows the support legs to be supported on the ground or other work surfaces, which is equivalent to adding a support point at the front of the forklift. This shifts the center of gravity of the forklift to the rear, enhances the stability of the forklift during operation, and improves the safety of the forklift.

[0015] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the installation of the push-pull block on the mast in the front support mechanism of a reach truck according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the left and right supports in the front support mechanism of a reach truck according to an embodiment of the present invention.

[0019] Figure 3 is a bottom view of the structure shown in Fig. 1; Figure 2 is a bottom view of the structure shown in Fig. 1;

[0020] Figure 4 is a connection diagram between the push-pull rod, the supporting leg and the push-pull block in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model;

[0021] Figure 5 is a relative position diagram between the supporting leg and the guide plate in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model; wherein, Figure 5 (a) of Fig. 4 is a side view, Figure 5 (b) of Fig. 4 is Figure 5 is a sectional view along the line A-A in (a) of Fig. 4;

[0022] Figure 6 is a diagram of the supporting leg slider in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model;

[0023] Figure 7 is a diagram of the push-pull block in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model;

[0024] Figure 8 is a diagram of the push-pull slider in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model;

[0025] Figure 9 is a connection diagram between the push-pull block, the latch, the push-pull slider and the guide block in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model;

[0026] Figure 10 is another connection diagram between the push-pull rod, the supporting leg and the push-pull block in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model, at this time the push-pull block has been disconnected from the latch; wherein, Figure 10 (a) of Fig. 7 is a side view, Figure 10 (b) of Fig. 7 is Figure 10 is a sectional view (part) along the line B-B in (a) of Fig. 7; and

[0027] Figure 11 is a diagram of the push-pull block in the front supporting mechanism for the front-moving forklift according to an embodiment of the present utility model; Figure 10 is a local enlarged diagram of C in Fig. 6.

[0028] Explanation of reference signs:

[0029] 10, left support; 11, right support; 12, portal; 13, traveling wheel;

[0030] 110, push-pull block; 111, clamping groove;

[0031] 120, support leg; 121, support leg body; 122, lifting rod; 123, compression spring; 124, contact portion; 125, mounting seat; 126, positioning cross bar;

[0032] 130, push-pull rod;

[0033] 140, support leg slider; 141, wedge surface; 142, first protrusion; 143, positioning groove;

[0034] 150, guide plate; 151, guide groove;

[0035] 160, push-pull slider; 161, slider body; 162, second protrusion; 163, through hole; 164, first boss; 165, second boss;

[0036] 170, latch; 171, tension spring; 172, protrusion;

[0037] 180, guide block; 181, guide groove; 182, accommodating groove; 183, transition groove;

[0038] 190, square hole. DETAILED DESCRIPTION

[0039] The purposes and functions of the present application and the methods for achieving these purposes and functions will be clarified by referring to exemplary embodiments. However, the present application is not limited to the exemplary embodiments disclosed below; it can be implemented in different forms. The essence of the specification is merely to help those skilled in the relevant art to comprehensively understand the specific details of the present application.

[0040] It should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of a feature, whole, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, whole, step, operation, element, component, and / or combinations thereof.

[0041] The ordinal numbers such as "first" and "second" cited in the present application are merely identifiers and do not have any other meaning, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0042] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used herein are for illustrative purposes only and are not limiting.

[0043] The utility model provides a front support mechanism for front moving type fork truck. The front support mechanism can be applied in the field of handling equipment, such as front moving type fork truck, to solve the problem that it is troublesome to adjust the gravity center of the existing front moving type fork truck.

[0044] Firstly, when the fork truck is working, the side of the portal near the to-be-hauled object is regarded as the front, the other side away from the to-be-hauled object is regarded as the back, and at the same time, the left side is regarded as the left and the right side is regarded as the right based on the front direction.

[0045] The utility model provides a front support mechanism for front moving type fork truck. In preferred embodiments, as shown in Figure 1 , Figure 3 and Figure 4 , wherein Figure 1 is the installation schematic view of the push-pull block 110 in the front support mechanism for front moving type fork truck according to an embodiment of the utility model on the portal 12; Figure 3 is the bottom surface perspective view of the structure shown in Figure 2 ; Figure 4 is a connection schematic view among the push-pull rod 130, the support leg 120 and the push-pull block 110 in the front support mechanism for front moving type fork truck according to an embodiment of the utility model. The front support mechanism can include the push-pull block 110, the support leg 120 and the push-pull rod 130.

[0046] In reference to Figure 1 and Figure 2 , the front moving type fork truck in the embodiment can include the left support 10, the right support 11 and the portal 12 arranged between the left support 10 and the right support 11. The left support 10 and the right support 11 are arranged horizontally and in parallel. Generally, the middle positions of the left support 10 and the right support 11 can be respectively provided with the traveling wheel 13. The traveling wheel 13 can be a driving wheel. The portal 12 is movable forward and backward relative to the left support 10 and the right support 11 in the front-back direction. As for the realization of the forward and backward movement of the portal 12 relative to the left support 10 and the right support 11 in the front-back direction, the existing technology can be adopted, which is not the innovation point of the present application, and will not be described in detail here.

[0047] The push-pull block 110 is an important structure of the present application, which is used to drive the push-pull rod 130 to move forward and backward. When the push-pull rod 130 is connected with the push-pull block 110, it can contact and apply an external force to the support leg 120 under the push and pull of the push-pull block 110. The support leg 120 can be lowered under the action of the external force, and it can be reset when the external force is removed.

[0048] Specifically, referring to Figure 1 The front support mechanism of the embodiment includes two push-pull blocks 110, which are respectively arranged at the left and right sides of the portal frame 12. The two push-pull blocks 110 can move forward and backward synchronously with the portal frame 12.

[0049] Referring to Figure 3 The front support mechanism of the embodiment includes two support legs 120, which are respectively arranged at the front positions of the left and right support frames 10 and 11 relative to the corresponding traveling wheels 13. Universal wheels can also be arranged between the corresponding traveling wheels 13 and the support legs 120 to facilitate the movement of the forklift. The support legs 120 can move downward relative to the left and right support frames 10 and 11 when subjected to external downward force, and can spring back to the initial position when the external force is removed.

[0050] The front support mechanism of the embodiment includes two push-pull rods 130, which can be connected to the corresponding push-pull blocks 110. The two push-pull rods 130 are respectively arranged inside the left and right support frames 10 and 11 and arranged in the front-back direction. The push-pull rods 130 can move forward and backward relative to the left and right support frames 10 and 11 under the push-pull of the push-pull blocks 110, so that the front end of the push-pull rods 130 presses down or disengages from the corresponding support legs 120, thereby applying or removing external force to the support legs 120.

[0051] The structure of the front end of the push-pull rod 130 pressing down or disengaging from the corresponding support leg 120 can not be limited.

[0052] For example, referring to Figure 4 , Figure 5 and Figure 6 , wherein the support leg 120 can include a support leg body 121. The bottom surface of the support leg body 121 is generally a planar structure. The support leg body 121 is provided with a fixed lifting rod 122 extending vertically from the outside to the inside thereof. For example, the top end of each lifting rod 122 can be connected to the left and right support frames 10 and 11 to achieve fixation. The support leg body 121 is provided with a cavity accommodating the lifting rod 122.

[0053] The portion of the lifting rod 122 located in the cavity is sleeved with a first spring for driving the support leg body 121 to spring back upward to the initial position when the external force is removed.

[0054] As for the first spring, it can be a compression spring 123 or a stretching spring 171. For example, when the first spring is a compression spring 123, the top end of the compression spring 123 can abut against the support leg body 121. The bottom end of the compression spring 123 is connected to the lifting rod 122, and the bottom end of the compression spring 123 can be fixedly connected to the lifting rod 122 or movably connected (such as abutting) to the lifting rod 122.

[0055] Then, the front end of the push-pull rod 130 can also be provided with a pressing mechanism for pressing the support leg 120. The pressing mechanism can include a support leg slider 140 and a contact portion 124. The specific type of the contact portion 124 can not be limited. It can be a block structure, etc.

[0056] The support leg slider 140 is arranged at the front end of the push-pull rod 130. The bottom of the support leg slider 140 is provided with a wedge surface 141 gradually moving downward from front to back. The contact portion 124 can be arranged at the top of the support leg body 121. When the push-pull rod 130 moves forward, the wedge surface 141 of the support leg slider 140 is driven to gradually approach and contact the contact portion 124, and then the contact portion 124 is pressed downward by the wedge surface 141 moving downward, the support leg 120 is pressed downward by the contact portion 124, and the support leg 120 (the support leg body 121) is lowered. When the push-pull rod 130 moves backward, the wedge surface 141 of the support leg slider 140 is driven to move away from the contact portion 124, so that the wedge surface 141 does not contact the contact portion 124, so that the support leg 120 is reset under the elastic force of the compression spring 123.

[0057] According to the front support mechanism of the utility model, the front position of the walking wheel 13 of the left support 10 and the right support 11 is provided with the support leg 120, the support leg 120 can be lifted and lowered under the action of the push-pull block 110 and the push-pull rod 130, so that the support leg 120 can be supported on the ground or other workbench, which is equivalent to adding a support point in the front position of the forklift, realizing the rear movement of the center of gravity of the forklift and enhancing the stability of the forklift during operation.

[0058] Continue to refer to Figure 4 , Figure 5 and Figure 6 , in order to make the support leg slider 140 move forward and backward and press the support leg 120 more stably, the front support mechanism of the embodiment can also include a first guide mechanism for realizing directional movement of the support leg slider 140. The first guide mechanism can include a first protruding block 142 horizontally protruding from the support leg slider 140 and a guide plate 150.

[0059] Specifically, the first protruding block 142 can be arranged on the support leg slider 140 and horizontally protrude to the left and right sides. For example, the first protruding block 142 can be arranged on the top of the support leg slider 140, which is wider than the left and right widths of the support leg slider 140 and can extend a certain length in the front-back direction.

[0060] The guide plates 150 are fixed above the corresponding support legs 120. For example, the guide plates 150 can be fixed on the corresponding left support 10 and right support 11 respectively. The bottom of the guide plate 150 is provided with a guide groove 151 matching the first protrusion 142. When the push-pull rod 130 drives the support leg slider 140 to move forward and backward, the first protrusion 142 slides forward and backward in the guide groove 151.

[0061] Reference Figure 10 In the preferred embodiment, the push-pull block 110 and the push-pull rod 130 can be connected in a movable manner, so that when the push-pull block 110 drives the push-pull rod 130 to move forward to a certain position, the push-pull block 110 and the push-pull rod 130 are disconnected, so that the push-pull block 110 can continue to move forward with the door frame 12. Therefore, the front support mechanism of the present application can further comprise a movable connection mechanism for realizing the movable connection of the push-pull rod 130 to the push-pull block 110.

[0062] Specifically, referring to Figure 7 , Figure 8 and Figure 9 , in order to realize the movable connection between the push-pull block 110 and the push-pull rod 130, the outer side of the push-pull block 110 can be provided with a vertical clamping groove 111. The rear end of the push-pull rod 130 can be provided with a push-pull slider 160. The push-pull slider 160 comprises a slider body 161. The slider body 161 is provided with a horizontal (along the left-right direction) pin 170 which can be clamped in the clamping groove 111.

[0063] Then, the front support mechanism of the present embodiment can further comprise a second guide mechanism for realizing directional movement of the push-pull slider. The second guide mechanism can comprise a fixed guide block 180 with an opening on the inward side. For example, the outward side of the slider body 161 can also be provided with a fixed guide block 180 with an opening on the inward side. The guide block 180 can be fixed on the corresponding left support 10 and right support 11. The opening facilitates the arrangement of the pin 170 clamped in the clamping groove 111. The guide block 180 has a guide groove 181 matching the slider body 161 to realize directional movement of the slider body 161 (push-pull slider 160). The front support mechanism of the present embodiment can further comprise a second positioning mechanism for realizing movement of the push-pull rod. The second positioning mechanism can comprise a recessed accommodating groove 182 provided in the bottom surface of the guide groove 181 of the guide block 180.

[0064] In order to make the directional movement of the slider body 161 (push-pull slider 160) more stable, the slider body 161 can also have a vertically protruding second protrusion 162. Of course, the guide groove 181 also has a space matching the second protrusion 162. The second protrusion 162 can be arranged protruding along the vertical upper and lower sides, which is higher than the height of the slider body 161 and can extend a certain length along the front and rear directions.

[0065] And, referring to Figure 11 The bolt 170 is configured to be retractable in the left-right direction. The slider body 161 (the push-pull slider 160) has a through hole 163 for the bolt 170 to pass through. The portion of the bolt 170 inside the through hole 163 is sleeved with a second spring for driving the bolt 170 to move towards the direction close to the accommodating groove 182.

[0066] As for the second spring, it can be a compression spring 123 or a tension spring 171. For example, when the second spring is a tension spring 171, the top end of the tension spring 171 is connected to the bolt 170, for example, the bolt 170 is provided with a protruding part 172 for connecting the tension spring 171. The bottom end of the tension spring 171 is fixedly connected to the push-pull slider 160. Of course, the portion of the through hole 163 for arranging the tension spring 171 has a relatively larger hole diameter.

[0067] When the bolt 170 moves forward with the push-pull slider 160 to the position aligned with the accommodating groove 182, the bolt 170 is inserted into the accommodating groove 182 under the elastic force of the push-pull spring (the second spring), and the other end of the bolt 170 exits from the clamping groove 111, realizing the disengagement between the push-pull block 110 and the push-pull rod 130.

[0068] Referring to Figure 2 In order to reasonably arrange the position of the push-pull slider 160 and realize better connection or disengagement with the push-pull block 110, the left support 10 and the right support 11 can also be provided with a long strip-shaped square hole 190 on the opposite inner side surface in the front-rear direction as the moving space of the push-pull slider 160.

[0069] When the push-pull block 110 drives the push-pull rod 130 to move forward to a certain position and the push-pull block 110 is disengaged from the bolt 170, in order to further ensure that the push-pull rod 130 stops moving, the front support mechanism of the present application can further comprise a first positioning mechanism for realizing the stop of the push-pull rod 130.

[0070] Specifically, the first positioning mechanism can include an overhanging positioning crossbar 126 arranged in the left-right direction on the contact part 124. The positioning crossbar 126 is horizontally arranged on the mounting seat 125 of the contact part 124. The bottom of the leg slider 140 is further provided with a positioning groove 143 matched with the positioning crossbar 126 and connected with the wedge surface 141. When the push-pull block 110 drives the push-pull rod 130 to move forward to a certain position and the push-pull block 110 is disengaged from the push-pull rod 130, at this time, the positioning crossbar 126 is just clamped in the positioning groove 143.

[0071] Further, in order to better synchronize the movement between the push-pull block 110 and the push-pull rod 130, the push-pull slider 160 can further include a first boss 164 arranged on the inner side of the slider body 161 and close to the push-pull block 110, and a second boss 165 arranged at the rear end of the first boss 164. The first boss 164 can be provided with a through hole 163. The connection between the first boss 164 and the slider body 161 in the front-rear direction can be an arc surface, so that when the push-pull block 110 moves backward, it can be more easily moved onto the first boss 164 through the arc surface and abut against the second boss 165.

[0072] When the latch 170 is clamped in the clamping groove 111, the second boss 165 abuts against the push-pull block 110 from the rear to the front. In order to make the latch 170 more easily exit from the accommodating groove 182 when the push-pull block 110 moves backward until abutting against the second boss 165 and drives the push-pull slider 160 to continue moving backward, the front and rear sides of the accommodating groove 182 can be provided with a transition groove 183 for smooth transition.

[0073] On the other hand, the utility model also provides a front-moving type forklift (not shown), which comprises the front support mechanism of the above-mentioned embodiments. Therefore, the front-moving type forklift according to the utility model comprises all the features and effects of the front support mechanism according to the utility model, and thus will not be described here.

[0074] Other embodiments of the utility model will be readily apparent to those skilled in the art from the disclosure and practice of the utility model herein. The specification and drawings are, accordingly, to be regarded as illustrative rather than restrictive.

Claims

1. A front support mechanism for a forward reach fork truck, said fork truck including a left support, a right support, and a mast disposed between said left and right supports, said mast being forwardly and rearwardly movable relative to said left and right supports in a fore and aft direction, characterized by, The front support mechanism comprises: push-pull blocks arranged on the left and right sides of the portal frame respectively and capable of moving forward and backward synchronously with the portal frame; support legs arranged at the front of the left and right support frames respectively and located at the front of the corresponding walking wheels, the support legs being configured to move downward relative to the left and right support frames when subjected to an external downward force and to rebound to the initial position when the external force is removed, wherein the walking wheels are located at the middle positions of the left and right support frames respectively; and push-pull rods arranged in the left and right support frames respectively and located in the front-rear direction, the push-pull rods being connected to the push-pull blocks and configured to move forward and backward relative to the left and right support frames under the push-pull of the push-pull blocks, so that the front end of the push-pull rods is pressed downward or separated from the corresponding support legs, thereby exerting or removing the external force on the support legs.

2. The front support mechanism according to claim 1, characterized by, The support leg comprises a support leg body provided with a fixed lifting rod vertically extending from the outside to the inside of the support leg body, and a cavity accommodating the lifting rod is arranged in the support leg body; the part of the lifting rod located in the cavity is sleeved with a first spring for driving the support leg body to rebound upward to the initial position when the external force is removed.

3. The front support mechanism according to claim 2, characterized by, The front support mechanism further comprises a pressing mechanism for realizing the pressing of the front end of the push-pull rod on the support leg, the pressing mechanism comprising: a support leg slider arranged at the front end of the push-pull rod, the bottom of the support leg slider being provided with a wedge surface gradually moving downward from front to back; a contact portion arranged on the support leg body; and wherein when the push-pull rod moves forward, the wedge surface gradually approaches and contacts the contact portion to press the contact portion.

4. The front support mechanism according to claim 3, characterized by The front support mechanism further comprises a first guide mechanism for realizing the directional movement of the support leg slider, the first guide mechanism comprising: a first protrusion horizontally protruding outward arranged on the support leg slider; a guide plate fixed above the support leg, the bottom of the guide plate being provided with a guide groove matching the first protrusion.

5. The front support mechanism according to claim 3 or 4, characterized by, The front support mechanism further comprises a first positioning mechanism for realizing the stopping of the movement of the push-pull rod, the first positioning mechanism comprising: a positioning crossbar arranged in the air in the left-right direction on the contact portion; a positioning groove matching the positioning crossbar arranged on the bottom of the support leg slider and connected to the wedge surface.

6. The front support mechanism according to claim 1, characterized by, The push-pull rod is configured to be movably connected to the push-pull block, and correspondingly, the front support mechanism further comprises a movable connection mechanism for realizing the movable connection of the push-pull rod to the push-pull block.

7. The front support mechanism according to claim 6, characterized by The movable connection mechanism comprises: a vertical clamping groove arranged on the outer side surface of the push-pull block; a push-pull slider arranged at the rear end of the push-pull rod, the push-pull slider comprising a slider body provided with a horizontal insertion pin capable of being clamped in the clamping groove.

8. The front support mechanism according to claim 7, characterized by The front support mechanism further comprises: a second guide mechanism for realizing the directional movement of the push-pull slider, the second guide mechanism comprising: a fixed guide block with an open inward side, the guide block having a guide groove matching the slider body; and A second positioning mechanism for stopping the movement of the push-pull rod, the second positioning mechanism comprising: a receiving groove provided to the bottom surface of the guide groove of the guide block; the push-pull slider having a through hole for the insertion of the pin, the portion of the pin within the through hole being sleeved with a second spring for driving the pin to move towards the receiving groove; wherein, when the pin moves with the push-pull slider to a position aligned with the receiving groove, the pin is inserted into the receiving groove under the elastic force of the second spring.

9. The front support mechanism according to claim 8, characterized by, The push-pull slider further comprises a first protrusion provided to the inner side surface of the slider body and a second protrusion located at the rear end of the first protrusion, the through hole horizontally penetrating the first protrusion, and the connection between the first protrusion and the slider body in the front-rear direction being configured as a curved surface; wherein, when the pin is clamped in the clamping groove, the second protrusion abuts against the push-pull block from the rear to the front.

10. A reach truck, characterized in that A front support mechanism comprising the push-pull slider as claimed in any one of claims 1 to 9.

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