Fork tooth mounting mechanism

Abstract

The utility model relates to a fork tooth mounting mechanism which is applied to the field of industrial carrying vehicles. The forklift comprises a door frame, a mounting frame and at least two forks, the mounting frame is arranged on the door frame and slides on the door frame in the height direction of the door frame, and the forks are arranged on the mounting frame and slide on the mounting frame in a reciprocating mode in the length direction of the mounting frame; a locking assembly is arranged between the pallet fork and the mounting frame, the locking assembly comprises a driving part and a locking part, the locking part is arranged in the mounting frame, and the driving part penetrates through the pallet fork and extends into the mounting frame to drive the locking part to extend out of the mounting frame to abut against the pallet fork. The fork adjusting device has the advantages that the fork is not prone to abnormal slippage after being adjusted, and stability is better.

Description

Technical Field

[0001] The present application relates to the field of industrial handling vehicles, and in particular to a fork tine mounting mechanism. Background Art

[0002] A forklift is one of the common industrial handling vehicles. A general forklift is driven by a diesel locomotive or an electric locomotive. A fork tine mounting mechanism is installed on its head to install the fork and drive the fork to lift and transport the goods.

[0003] A fork tine mounting mechanism for a forklift in the related art includes a mast, a fork frame and a cargo fork. The fork frame can be controlled by the driver to rise or fall along the mast and is generally driven by a chain. The cargo fork is installed on the fork frame to drive the cargo fork to rise and fall and to lift and carry goods. However, with the existing installation structure, the cargo fork needs to be manually installed on the fork frame and the distance between the cargo forks needs to be adjusted according to the different lifted goods. That is, the cargo fork needs to meet the adjustable requirements, so the cargo fork is usually hung on the fork frame and can slide freely along the fork frame. After being adjusted into place, it is clamped by a clamp block and bolts. That is, the existing fork frame is actually a fixed relationship formed by the clamp block and the fork frame, which is not only inconvenient to install, but also the cargo fork is prone to instability during use, and the stability is poor. Utility Model Content

[0004] In order to improve the problem of poor stability, the present application provides a fork tine mounting mechanism.

[0005] The present application provides a fork tine installation mechanism, which adopts the following technical solution:

[0006] A fork tine mounting mechanism comprises a gantry, a mounting frame and at least two forks, wherein the mounting frame is mounted on the gantry and slides on the gantry along the height direction of the gantry, and the forks are mounted on the mounting frame and reciprocately slide on the mounting frame along the length direction of the mounting frame;

[0007] A locking assembly is provided between the fork and the mounting frame, the locking assembly comprising a driving portion and a locking portion, the locking portion being provided in the mounting frame, the driving portion penetrating the fork and extending into the mounting frame to drive the locking portion to extend out of the mounting frame and abut against the fork.

[0008] By adopting the above technical solution, a locking part and a driving part are added on the basis of the original locking by clamping blocks and bolts. The locking part is pushed to move while tightening the bolts, so that the fork is not prone to abnormal slippage after adjustment and has better stability.

[0009] Optionally, a sliding sleeve is provided on the end surface of the fork that is in contact with the mounting frame, the sliding sleeve is sleeved on the mounting frame, the locking portion includes an actuating member and a fixing member, the mounting frame is hollow inside to form a mounting cavity, a protruding slit is provided at the bottom of the mounting cavity, the actuating member is placed in the mounting cavity and moves in the mounting cavity to protrude from the mounting cavity through the protruding slit;

[0010] The fixing member is fixed on the sliding sleeve and the actuating member abuts against the fixing member when extending from the extending slot.

[0011] By adopting the above technical solution, after the fork is adjusted, in addition to the traditional bolt locking method, the actuating member will also extend from the extension gap and abut against the fixing member. Even if the fork tends to move abnormally, it can be offset by the friction between the actuating member and the fixing member, thereby improving the stability of the fork.

[0012] Optionally, the actuating part includes a base plate, a sliding rail is provided on the side wall of the mounting cavity, a sliding groove adapted to the sliding rail is opened on the end face of the base plate, the sliding rail is embedded in the sliding groove and slides back and forth along the sliding groove, and is driven by the driving part to extend or retract the extension seam to abut against the fixing part.

[0013] By adopting the above technical solution, the base plate abuts against the fixing member after the extension slit is extended, so that friction force can be generated, and the stability of the fork is improved in combination with the original fixing method.

[0014] Optionally, a first check tooth is provided at one end of the substrate extending out of the extension slot, and the first check tooth abuts against the fixing member when the first check tooth extends out of the extension slot. A tension spring is provided on the substrate, one end of the tension spring is fixed to the substrate, and the other end of the tension spring is fixed to the inner wall of the mounting cavity.

[0015] By adopting the above technical solution, when the fork is not locked, the base plate is retracted in the installation cavity, which will not affect the adjustment of the fork position. After the fork position is determined, the fork position will be fixed to the mounting frame with bolts. At this time, the base plate will extend to abut against the fixing part, and the bolts will cooperate with each other to reduce the possibility of abnormal movement of the fork. After the adjustment is completed, the fork is not prone to abnormal slippage and has better stability.

[0016] Optionally, the fixing member includes a base strip, and a second check tooth is provided on a side of the base strip facing the extension slot, and when the first check tooth extends out of the extension slot, the first check tooth engages with the second check tooth.

[0017] By adopting the above technical solution, after the base plate is extended, the first check tooth abuts against the second check tooth. If the fork shows a tendency of abnormal displacement, the first check tooth and the second check tooth that are meshed with each other will abut against each other to reduce the possibility of abnormal movement of the fork. After the adjustment is completed, the fork is not prone to abnormal slippage and has better stability.

[0018] Optionally, the driving part includes a limiting bolt, and threaded holes cooperating with the limiting bolt are provided on the fork and the mounting frame. The limiting bolt passes through the threaded hole and is placed in the mounting cavity and abuts against the substrate. A first guide surface is provided at one end of the limiting bolt abutting against the substrate, and a second guide surface cooperating with the first guide surface is provided on the side of the substrate abutting against the limiting bolt.

[0019] By adopting the above technical solution, the limit bolt is gradually tightened after being inserted, and as the limit bolt is inserted into the installation cavity and abuts against the edge of the base plate, the base plate is pushed out so that the first check tooth engages with the second check tooth, thereby reducing the possibility of abnormal movement of the fork. After the adjustment is completed, the fork is not prone to abnormal slippage and has better stability.

[0020] Optionally, the gantry is provided with a lifting assembly, the lifting assembly includes a sprocket and a chain, the sprocket is rotatably connected to the gantry and is placed at both ends of the gantry in the height direction. The chain is wound around the sprocket and driven by the sprocket, the gantry is provided with a sliding groove along the height direction of the gantry, the end surface of the mounting frame in contact with the gantry is provided with a sliding block, the sliding block is engaged in the sliding groove and slides in the sliding groove, the mounting frame is fixed to the chain, and the mounting frame slides back and forth along the sliding groove when the chain moves.

[0021] By adopting the above technical solution, the mounting frame is lifted by the chain and is more stable.

[0022] Optionally, a cargo baffle is provided on the mounting frame, and the cargo baffle is detachably fixed to the mounting frame, and an extension hole for extending a cargo fork is provided on the cargo baffle.

[0023] By adopting the above technical solution, one side of the goods can be against the cargo baffle when the fork is transferring the goods, so that the goods are more stable and reliable during transportation and will not fall off easily.

[0024] In summary, the present application includes at least one of the following beneficial effects:

[0025] 1. On the basis of the original clamping block and bolts for locking, a locking part and a driving part are added. The locking part is pushed while tightening the bolts, so that the fork is not prone to abnormal slippage after adjustment, and the stability is better;

[0026] 2. When the fork is not locked, the base plate shrinks in the installation cavity and will not affect the adjustment of the fork position. After the fork position is determined, bolts will be used to fix the fork position on the mounting frame. At this time, the base plate will extend to abut against the fixing parts, and the bolts will cooperate with each other to reduce the possibility of abnormal movement of the fork. After the adjustment is completed, the fork is not prone to abnormal slippage and has better stability. After the limit bolt is inserted, it is gradually tightened with the limit bolt. As the limit bolt is inserted into the installation cavity and abuts against the edge of the base plate, the base plate is pushed out so that the first check tooth engages with the second check tooth, reducing the possibility of abnormal movement of the fork. After the adjustment is completed, the fork is not prone to abnormal slippage and has better stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the fork tine mounting mechanism in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram showing the connection relationship between the mounting frame and the fork in the embodiment of the present application;

[0029] Figure 3 This is a schematic cross-sectional structure diagram of a locking assembly in an embodiment of the present application;

[0030] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0031] In the figure: 1. gantry; 2. mounting frame; 3. fork; 31. sleeve; 4. locking assembly; 41. driving part; 411. limit bolt; 42. locking part; 421. actuating part; 4211. base plate; 4212. first check tooth; 422. fixing part; 4221. base bar; 4222. second check tooth; 5. lifting assembly; 51. sprocket; 52. chain; 6. cargo baffle. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0033] The embodiment of the present application discloses a fork tine mounting mechanism. It is mounted on the head of a forklift and is used to transport goods. Figure 1 and Figure 2 The fork tooth installation mechanism includes a door frame 1, which is used to be installed on the head of a forklift. A lifting component 5 is installed on the door frame 1, and a mounting frame 2 is fixed on the lifting component 5. The lifting component 5 drives the mounting frame 2 to move along the height direction of the door frame 1, and a fork 3 is installed on the mounting frame 2, that is, the lifting component 5 can drive the fork 3 to rise and fall.

[0034] Reference Figure 1 and Figure 2The lifting assembly 5 can preferably be realized by using a sprocket 51 and a chain 52. A sprocket 51 is respectively provided at both ends of the door frame 1 in the height direction. The sprocket 51 is rotatably connected to the door frame 1 and a chain 52 is wound between the two sprockets 51 in the height direction. One of the sprockets 51 is directly driven to rotate by the motor, so that the chain 52 can move back and forth along the height direction of the door frame 1. A sliding block needs to be fixed on the end face of the mounting frame 2 facing the door frame 1, and a sliding groove needs to be opened on the door frame 1 along the height direction of the door frame 1. The sliding block and the sliding groove are adapted to each other, and the sliding block is engaged in the sliding groove and slides in the sliding groove. The mounting frame 2 is fixed on the chain 52, and the mounting frame 2 slides back and forth along the sliding groove when the chain 52 moves. The lifting and lowering of the fork 3 is realized.

[0035] Reference Figure 1 and Figure 2 There are usually at least two forks 3, which are mounted on the mounting frame 2 and the distance between the forks 3 can be adjusted. After adjustment, the forks 3 can be fixed to the mounting frame 2 using bolts or other methods. In addition to fixing with bolts, a locking assembly 4 can also be set on the mounting frame 2. The locking assembly 4 cooperates with the bolts to fix the forks 3, and can also reduce the possibility of abnormal movement of the forks 3 during use, and improve the stability of the forks 3 during use.

[0036] Reference Figure 3 and Figure 4 The locking assembly 4 includes a driving part 41 and a locking part 42. The bolt used to fix the fork 3 can serve as the driving part 41. The bolt serving as the driving part 41 is called a limit bolt 411. The fork 3 and the mounting frame 2 are provided with threaded holes that match the limit bolt 411 for the bolt to be inserted, and the locking part 42 is installed in the mounting frame 2. Specifically, in combination with Figure 2 A cavity needs to be provided inside the mounting frame 2 to form a mounting cavity. When the fork 3 is hung on the mounting frame 2, a protruding slit needs to be provided on the inner wall of the mounting cavity toward the fork 3 for the locking portion 42 to extend out, so as to form a tight fit between the mounting frame 2 and the fork 3. The threaded hole on the mounting frame 2 is connected to the mounting cavity, and the limiting bolt 411 can be inserted into the cavity to drive the locking portion 42.

[0037] Reference Figure 2 and Figure 3 In order to enable the fork 3 to be hung on the mounting frame 2, a sliding sleeve 31 is fixed on the end surface of the fork 3 that is in contact with the mounting frame 2. The sliding sleeve 31 is fitted on the mounting frame 2, and the sliding sleeve 31 can be regarded as a whole with the fork 3. Figure 4The locking part 42 includes an actuating member 421 and a fixing member 422. The interior of the mounting frame 2 is hollow to form a mounting cavity. A protruding slot is provided at the bottom of the mounting cavity. The actuating member 421 is placed in the mounting cavity and moves in the mounting cavity and extends out of the mounting cavity through the protruding slot. The fixing member 422 is fixed on the sliding sleeve 31 and abuts against the fixing member 422 when the actuating member 421 extends out of the protruding slot.

[0038] Reference Figure 2 , Figure 3 and Figure 4 The action member 421 includes a base plate 4211, a sliding rail is provided on the side wall of the installation cavity, and a sliding groove adapted to the sliding rail is provided on the end surface of the base plate 4211. The sliding rail is embedded in the sliding groove and slides back and forth along the sliding groove, and is driven by the driving part 41 to extend or retract the extension gap to abut on the fixing member 422. After the limit bolt 411 is inserted, it can directly push the base plate 4211 to extend from the extension gap, and the fixing member 422 is fixed on the sliding sleeve 31. The fixing part can be only a basic strip 4221, and the basic strip 4221 and the base plate 4211 are abutted against each other, thereby reducing the possibility of the fork 3 moving, thereby improving the stability of the fork 3 when in use.

[0039] Reference Figure 2 , Figure 3 and Figure 4The end of the base plate 4211 extending from the extension slot is provided with a first check tooth 4212. When the first check tooth 4212 extends from the extension slot, the first check tooth 4212 abuts against the fixing member 422. A tension spring is provided on the base plate 4211. One end of the tension spring is fixed to the base plate 4211, and the other end of the tension spring is fixed to the inner wall of the installation cavity. The base strip 4221 is provided with a second check tooth 4222 on the side facing the extension slot. When the first check tooth 4212 extends from the extension slot, the first check tooth 4212 engages with the second check ruler. The base plate 4211 can be driven by the limit bolt 411, that is, the limit bolt 411 first abuts against the base plate 4211 after being inserted into the installation cavity through the threaded hole. The end of the limit bolt 411 abutting against the base plate 4211 is provided with a first guide surface, and the side of the base plate 4211 abutting against the limit bolt 411 is provided with a second guide surface matching the first guide surface. When in use, the first guide surface abuts against the second guide surface, so that the base plate 4211 can be pushed smoothly. When the fork 3 is not locked, the base plate 4211 shrinks in the installation cavity, which will not affect the adjustment of the position of the fork 3. After the position of the fork 3 is determined, the position of the fork 3 will be fixed on the mounting frame 2 using bolts. At this time, the base plate 4211 will extend to abut against the fixing member 422, and the bolts cooperate with each other to reduce the possibility of abnormal movement of the fork 3. After the adjustment is completed, the fork 3 is not prone to abnormal slippage, and the stability is better. After the limit bolt 411 is inserted, the limit bolt 411 is gradually tightened. As the limit bolt 411 is inserted into the installation cavity and abuts against the edge of the base plate 4211, the base plate 4211 is pushed out so that the first check tooth 4212 is engaged with the second check tooth 4222, which reduces the possibility of abnormal movement of the fork 3. After the adjustment is completed, the fork 3 is not prone to abnormal slippage, and the stability is better.

[0040] Reference Figure 1 After the fork 3 is fixed, the cargo baffle 6 can be installed. The cargo baffle 6 is detachably fixed to the mounting frame 2, and an extension hole for the fork 3 to extend is provided on the cargo baffle 6. When the fork 3 transfers the goods, one side of the goods can be against the cargo baffle 6, making the goods more stable and reliable during transportation and not easy to fall off.

[0041] The present application adds a locking part 42 and a driving part 41 on the basis of the original locking by clamping blocks and bolts. The locking part 42 is pushed to move while tightening the bolts, so that the fork 3 is not prone to abnormal slippage after the adjustment is completed, and the stability is better. When the fork 3 is not locked, the base plate 4211 shrinks in the installation cavity and will not affect the adjustment of the position of the fork 3. After the position of the fork 3 is determined, the position of the fork 3 will be fixed on the mounting frame 2 with bolts. At this time, the base plate 4211 will extend to abut against the fixing part 422, and the bolts will cooperate with each other to reduce the possibility of abnormal movement of the fork 3. After the adjustment is completed, the fork 3 is not prone to abnormal slippage and the stability is better. After the limiting bolt 411 is inserted, it is gradually tightened. As the limiting bolt 411 is inserted into the installation cavity and abuts against the edge of the base plate 4211, the base plate 4211 is pushed out so that the first check tooth 4212 engages with the second check tooth 4222, reducing the possibility of abnormal movement of the fork 3. After the adjustment is completed, the fork 3 is not prone to abnormal slippage and has better stability.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fork tine mounting mechanism, comprising a door frame (1), a mounting frame (2) and at least two forks (3), characterized in that: The mounting frame (2) is arranged on the door frame (1) and slides on the door frame (1) along the height direction of the door frame (1); the fork (3) is arranged on the mounting frame (2) and slides reciprocatingly on the mounting frame (2) along the length direction of the mounting frame (2); A locking assembly (4) is provided between the fork (3) and the mounting frame (2), and the locking assembly (4) comprises a driving portion (41) and a locking portion (42). The locking portion (42) is provided in the mounting frame (2), and the driving portion (41) penetrates the fork (3) and extends into the mounting frame (2) to drive the locking portion (42) to extend out of the mounting frame (2) and abut against the fork (3).

2. A fork tine mounting mechanism according to claim 1, characterized in that: A sliding sleeve (31) is provided on the end surface of the fork (3) that is in contact with the mounting frame (2); the sliding sleeve (31) is sleeved on the mounting frame (2); the locking portion (42) comprises an actuating member (421) and a fixing member (422); the mounting frame (2) is hollow inside to form a mounting cavity; a protruding slit is provided at the bottom of the mounting cavity; the actuating member (421) is disposed in the mounting cavity and moves in the mounting cavity to protrude from the protruding slit out of the mounting cavity; The fixing member (422) is fixed on the sliding sleeve (31), and the actuating member (421) abuts against the fixing member (422) when extending from the extension slot.

3. A fork tine mounting mechanism according to claim 2, characterized in that: The actuating member (421) comprises a base plate (4211), a sliding rail is provided on the side wall of the mounting cavity, a sliding groove adapted to the sliding rail is provided on the end surface of the base plate (4211), the sliding rail is embedded in the sliding groove and slides back and forth along the sliding groove, and is driven by the driving unit (41) to extend or retract the extension groove to abut against the fixing member (422).

4. A fork tine mounting mechanism according to claim 3, characterized in that: A first check tooth (4212) is provided at one end of the base plate (4211) extending out of the extension slot. When the first check tooth (4212) extends out of the extension slot, the first check tooth (4212) abuts against the fixing member (422). A tension spring is provided on the base plate (4211), one end of the tension spring is fixed on the base plate (4211), and the other end of the tension spring is fixed on the inner wall of the mounting cavity.

5. A fork tine mounting mechanism according to claim 4, characterized in that: The fixing member (422) comprises a base strip (4221), and a second check tooth (4222) is provided on a side of the base strip (4221) facing the extension slot, and when the first check tooth (4212) extends out of the extension slot, the first check tooth (4212) engages with the second check tooth.

6. A fork tine mounting mechanism according to claim 3, characterized in that: The driving part (41) comprises a limiting bolt (411), the fork (3) and the mounting frame (2) are provided with threaded holes which cooperate with the limiting bolt (411), the limiting bolt (411) passes through the threaded hole and is placed in the mounting cavity and abuts against the base plate (4211), one end of the limiting bolt (411) abutting against the base plate (4211) is provided with a first guide surface, and one side of the base plate (4211) abutting against the limiting bolt (411) is provided with a second guide surface which cooperates with the first guide surface.

7. A fork tine mounting mechanism according to claim 2, characterized in that: The door frame (1) is provided with a lifting assembly (5), and the lifting assembly (5) includes a sprocket (51) and a chain (52). The sprocket (51) is rotatably connected to the door frame (1) and is placed at both ends of the door frame (1) in a height direction. The chain (52) is wound around the sprocket (51) and driven by the sprocket (51). The door frame (1) is provided with a sliding groove along the height direction of the door frame (1). A sliding block is provided on the end surface of the mounting frame (2) in contact with the door frame (1). The sliding block is engaged in the sliding groove and slides in the sliding groove. The mounting frame (2) is fixed on the chain (52). When the chain (52) moves, the mounting frame (2) slides back and forth along the sliding groove.

8. A fork tine mounting mechanism according to claim 7, characterized in that: The mounting frame (2) is provided with a cargo baffle (6), the cargo baffle (6) is detachably fixed to the mounting frame (2), and an extension hole for the cargo fork (3) to extend is provided on the cargo baffle (6).

Images