Tension spring automatic reset type material trolley

Abstract

The utility model discloses a tension spring automatic reset type material trolley which comprises a trolley body, a front traction assembly and a rear traction assembly, the front traction assembly comprises a front traction fixing seat, a front traction deflector rod, a front traction swing block, a front swing rod, a first tension spring and a traction rod, the upper end of the traction rod is connected with a traction ring, and the lower end of the traction rod is connected with a pressing block and a hinge shaft. The pressing block can be connected to the front traction swing block in a pressed mode, the rear traction assembly comprises a rear traction fixing base, a rear traction driving lever, a rear traction rotation block, a rear swing rod, a limiting block and a second tension spring, the rear traction rotation block and the rear swing rod are fixedly connected with the rear traction driving lever, the limiting block and the second tension spring are fixedly connected to the rear traction rotation block, and an imbedding groove allowing the traction ring to be imbedded is formed between two connecting plates on the rear traction fixing base; the lower end of the rear traction rotation block is arranged in the strip-shaped holes in the two connecting plates, and when the rear traction driving lever rotates anticlockwise, the rear traction rotation block can be separated from the placing groove. By the adoption of the technical scheme, the mode that the material trolleys are connected into a row and separated is simple, the speed is high, and the using effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of material carts, and in particular to a tension spring automatic reset material cart. Background Technology

[0002] A material cart is a vehicle used to transfer materials. Most existing material carts are used individually. When multiple material carts need to be connected together, they are manually linked together in a row using chains. When the material transported by a material cart arrives at one of the unloading stations, the chain is manually released, allowing one material cart to stop at the unloading station and wait for unloading. Then, the row of material carts is moved to another unloading station, and then the chain of another material cart is released, allowing that material cart to stop at the unloading station and wait for unloading. This process is repeated to separate the row of material carts. This method of connecting and separating material carts in a row is slow and cumbersome. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a tension spring automatic reset material cart to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of this utility model, an automatic spring-reset material cart is designed, comprising: a cart body, a front traction assembly connected to the right side of the cart body, and a rear traction assembly on the left side. The front traction assembly includes a front traction fixed seat fixed to the cart body, a front traction lever rotatably engaged with the front traction fixed seat, a front traction swing block and a front swing rod fixed to the front traction lever, a first tension spring connected at one end to the front swing rod and at the other end to the cart body for driving the right end of the front traction swing block to press against the front traction fixed seat, and a traction rod with a traction ring connected at its upper end and a pressure block and a hinge shaft connected at its lower end. The hinge shaft is hinged to a vertical slot on the front traction fixed seat and can move up and down along the vertical slot to allow the traction rod to move in both a vertical and horizontal state. The pressure block can be pressed against the front traction swing block to keep the traction rod in a vertical state. The rear traction assembly includes a rear traction fixed seat fixed to the vehicle body, a rear traction lever rotatably engaged with the rear traction fixed seat, a rear traction rotary block and a rear swing rod fixed to the rear traction lever, a limiting block fixed to the rear traction rotary block, and a second tension spring with one end connected to the rear swing rod and the other end connected to the vehicle body for driving the limiting block to press against the top of the rear traction fixed seat. An insertion groove for inserting a traction ring is formed between the two connecting plates on the rear traction fixed seat. The lower end of the rear traction rotary block is inserted into the strip hole on the two connecting plates. When the rear traction lever is rotated counterclockwise, the rear traction rotary block can be moved away from the insertion groove.

[0006] Using the above technical solution, when multiple material carts need to be connected in a row, the traction rod on one material cart is swung to a horizontal position, pushing the material cart to move and causing the traction rod to move. This allows the traction ring at the end of the traction rod to be placed into the insertion slot on the rear traction fixing seat of another material cart. When the traction ring enters the insertion slot, it pushes the lower end of the rear traction rotary block to swing. When the traction ring enters the insertion slot and is no longer in contact with the rear traction rotary block, the tension of the second tension spring drives the rear traction lever to rotate, which in turn drives the rear traction rotary block to reset and rotate, causing its lower end to enter the insertion slot and preventing the traction ring from leaving the insertion slot. This achieves the connection between the two material carts. In this way, multiple material carts can be connected in a row. When it is necessary to separate two material carts, the rear traction lever is rotated counterclockwise to make the lower end of the rear traction rotary block leave the insertion slot. Then, pushing one of the material carts to move will cause the traction ring to leave the insertion slot, thus separating the two material carts. This method of connecting and separating material carts in a row is relatively simple, fast, and has good performance.

[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0008] In some embodiments, the front traction assembly further includes a front fixing member, the front traction lever is rotatably engaged with the front fixing member, and the front swing arm is located between the front fixing member and the front traction fixing seat.

[0009] In some embodiments, the rear traction assembly further includes a rear fixing member, the rear traction lever is rotatably engaged with the rear fixing member, and the rear swing arm is located between the rear fixing member and the rear traction fixing seat.

[0010] In some embodiments, the lower end of the traction rod is inserted into a hole on the front traction fixing seat. The pressure block and the hinge shaft are connected to the left side of the traction rod. When the front traction lever is rotated counterclockwise, it rotates and drives the front traction swing block to swing, which can drive the pressure block and the traction rod to move upward, so that the lower end of the traction rod separates from the hole. After the front traction swing block separates from the pressure block, the traction rod can automatically rotate and swing to a horizontal state. The lower end of the traction rod being inserted into a hole on the front traction fixing seat can keep the traction rod in a relatively stable vertical state.

[0011] In some embodiments, a first buffer block is fixed to the front traction mounting base, which presses against the traction rod when it is in a horizontal position. This prevents the traction rod from generating loud noise when swinging from a vertical to a horizontal position.

[0012] In some embodiments, a second buffer block is fixedly connected to two stepped grooves on the front and rear sides of the lower end of the limiting block, and the second buffer block presses against the top of the rear traction fixing seat. This can prevent the limiting block from making loud noise.

[0013] In some embodiments, both the front traction lever and the rear traction lever are L-shaped or T-shaped.

[0014] In some embodiments, the vehicle body includes a frame and a plurality of casters fixed to the bottom of the frame. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a tension spring automatic reset material cart according to one embodiment of this utility model;

[0016] Figure 2 for Figure 1 A structural diagram from another perspective;

[0017] Figure 3 This is a schematic diagram of the front traction assembly;

[0018] Figure 4 This is a schematic diagram of the exploded structure of the front traction assembly;

[0019] Figure 5 This is a schematic diagram of the rear traction assembly.

[0020] Figure 6 This is an exploded structural diagram of the rear traction assembly;

[0021] Figure label:

[0022] 1. Vehicle body; 2. Front traction assembly; 20. Front traction mounting base; 201. Vertical strip hole; 202. Insertion hole; 203. First buffer rubber block; 21. Front fixing component; 22. Front traction lever; 23. Front traction swing block; 24. Front swing rod; 25. First tension spring; 26. Traction ring; 27. Pressure block; 28. Hinge shaft; 29. ​​Traction rod; 3. Rear traction assembly; 30. Rear traction mounting base; 301. Connecting plate; 302. Insertion slot; 31. Rear fixing component; 32. Rear traction lever; 33. Rear traction rotary block; 34. Rear swing rod; 35. Limiting block; 351. Second buffer rubber block; 36. Second tension spring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] refer to Figures 1 to 6 As shown, the present invention provides a spring-loaded automatic reset material cart, comprising: a cart body 1, a front traction component 2 and a rear traction component 3. The front traction component 2 is connected to the right side of the cart body 1, and the rear traction component 3 is connected to the left side of the cart body 1. The cart body 1 includes a frame and multiple casters fixed to the bottom of the frame.

[0027] The front traction assembly 2 includes a front traction mounting base 20 and a front fixing member 21 fixed to the vehicle body 1, a front traction lever 22 rotatably engaged with the front traction mounting base 20 and the front fixing member 21, a front traction swing block 23 and a front swing rod 24 fixed to the front traction lever 22, a first tension spring 25 whose right end is connected to the front swing rod 24 and whose other end is connected to the vehicle body 1 and used to drive the right end of the front traction swing block 23 to press against the top of the front traction mounting base 20, a traction ring 26 connected to the upper end and a lower left end connected to The traction rod 29 has a pressure block 27 and a hinge shaft 28. The front swing rod 24 is located between the front fixed member 21 and the front traction fixed seat 20. The first tension spring 25 is in a stretched state. The front and rear ends of the hinge shaft 28 are hinged to the vertical strip hole 201 on the front traction fixed seat 20 and can move up and down along the vertical strip hole 201 so that the traction rod 29 swings between the vertical and horizontal states. The pressure block 27 can be pressed onto the front traction swing block 23 so that the traction rod 29 remains in a vertical state.

[0028] The rear end of the front traction lever 22 is inserted into the front traction swing block 23 and fixed to it by bolts or welding. The traction ring 26 is welded to the traction rod 29. The pressure block 27 is welded to the traction rod 29 or fixed to it by bolts. The hinge shaft 28 is welded to the traction rod 29, or the hinge shaft 28 is rotatably engaged with the sleeve welded on the traction rod 29.

[0029] Furthermore, the front traction fixing seat 20 is provided with an insertion hole 202 and a first buffer rubber block 203 is fixedly attached thereto. When the traction rod 29 is in a vertical state, the lower end of the traction rod 29 is inserted into the insertion hole 202 on the front traction fixing seat 20, and the pressure block 27 is pressed against the front traction swing block 23 to keep the traction rod 29 stably in a vertical state. When the front traction lever 22 is rotated counterclockwise, the front traction lever 22 rotates and drives the front traction swing block 23 and the front swing rod 24 to swing counterclockwise. The swing of the front traction swing block 23 can drive the pressure block 27, the traction rod 29 and the hinge shaft 2 8. Moving the traction rod 29 upwards allows the lower end of the traction rod 29 to separate from the insertion hole 202. After the current traction swing block 23 separates from the pressure block 27, the traction rod 29 automatically rotates clockwise and swings to a horizontal state under its own weight, pressing on the first buffer rubber block 203. When the front swing rod 24 swings counterclockwise, the first tension spring 25 is further stretched. When the front traction lever 22 is released, the front traction lever 22 is driven to rotate clockwise and reset under the tension of the first tension spring 25, and the front traction swing block 23 is reset in conjunction with it, so that its right end presses on the top of the front traction fixing seat 20.

[0030] The rear traction assembly 3 includes a rear traction fixing seat 30 and a rear fixing member 31 fixedly connected to the vehicle body 1, a rear traction lever 32 rotatably engaged with the rear traction fixing seat 30 and the rear fixing member 31, a rear traction rotary block 33 and a rear swing arm 34 fixedly connected to the rear traction lever 32, a limiting block 35 fixedly connected to the rear traction rotary block 33, and a second tension spring 36, one end of which is connected to the rear swing arm 34 and the other end of which is connected to the vehicle body 1, for driving the limiting block 35 to press against the top of the rear traction fixing seat 30. When 36 is in the stretched state, the rear swing arm 34 is located between the rear fixing member 31 and the rear traction fixing seat 30. A groove 302 is formed between the two connecting plates 301 on the rear traction fixing seat 30 for inserting the traction ring 26 (the traction ring on the front traction assembly of other vehicle bodies). The rear traction rotary block 33 is ┏-shaped, and its lower end is inserted into the strip-shaped hole on the two connecting plates 301. When the rear traction lever 32 is rotated counterclockwise, the rear traction lever 32 rotates, driving the rear traction... The traction rotary block 33 and the rear swing arm 34 rotate counterclockwise. The rotation of the rear traction rotary block 33 causes its lower end to leave the insertion slot 302. The rear swing arm 34 can further stretch the second tension spring 36. When the rear traction lever 32 is released, the tension of the second tension spring 36 drives the rear traction rotary block 33 to rotate clockwise to reset. The lower end of the rear traction rotary block 33 is inserted into the insertion slot 302. When two car bodies 1 need to be connected, the traction rod 29 on one car body 1 is brought to a horizontal position and pushed... The movement of vehicle body 1 causes the traction ring 26 at the end of the upper traction rod 29 to insert into the insertion groove 302 on the other vehicle body 1 and abut against the rear traction rotary block 33, causing the rear traction rotary block 33 to rotate. When the traction ring 26 enters the insertion groove 302 and does not abut against the rear traction rotary block 33, the rear traction rotary block 33 is driven to rotate clockwise to reset under the tension of the second tension spring 36. The lower end of the rear traction rotary block 33 is inserted into the insertion groove 302, preventing the traction ring from leaving, thereby realizing the connection between the two vehicle bodies 1.

[0031] The second buffer rubber block 351 is fixedly connected to the two stepped grooves on the front and rear sides of the lower end of the limiting block 35, and the second buffer rubber block 351 presses on the top of the rear traction fixing seat 30.

[0032] Both the front traction lever 22 and the rear traction lever 32 have an L-shaped or T-shaped structure. In this embodiment, it is preferred that both the front traction lever 22 and the rear traction lever 32 have an L-shaped structure.

[0033] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A spring-loaded automatic reset material cart, characterized in that, include: The vehicle body comprises a front traction assembly connected to the right side of the vehicle body and a rear traction assembly on the left side. The front traction assembly includes a front traction mounting base fixed to the vehicle body, a front traction lever rotatably engaged with the front traction mounting base, a front traction swing block and a front swing rod fixed to the front traction lever, a first tension spring connected at one end to the front swing rod and at the other end to the vehicle body for driving the right end of the front traction swing block to press against the front traction mounting base, and a traction rod with a traction ring connected at its upper end and a pressure block and a hinge shaft connected at its lower end. The hinge shaft is hinged to a vertical slot on the front traction mounting base and can move up and down along the vertical slot to allow the traction rod to swing between a vertical and horizontal state. The pressure block can press against the front traction mounting base. The rear traction assembly includes a rear traction mounting base fixed to the vehicle body, a rear traction lever rotatably engaged with the rear traction mounting base, a rear traction rotary block and a rear swing rod fixed to the rear traction lever, a limiting block fixed to the rear traction rotary block, and a second tension spring connected at one end to the rear swing rod and at the other end to the vehicle body for driving the limiting block to press against the top of the rear traction mounting base. An insertion groove for inserting a traction ring is formed between two connecting plates on the rear traction mounting base. The lower end of the rear traction rotary block is inserted into the strip-shaped hole on the two connecting plates. When the rear traction lever is rotated counterclockwise, the rear traction rotary block can be moved away from the insertion groove.

2. The spring-loaded automatic reset material cart according to claim 1, characterized in that, The front traction assembly also includes a front fixing member, the front traction lever is rotatably engaged with the front fixing member, and the front swing arm is located between the front fixing member and the front traction fixing seat.

3. A tension spring automatic reset material cart according to claim 1 or 2, characterized in that, The rear traction assembly also includes a rear fixing member, the rear traction lever is rotatably engaged with the rear fixing member, and the rear swing arm is located between the rear fixing member and the rear traction fixing seat.

4. The spring-loaded automatic reset material cart according to claim 1, characterized in that, The lower end of the traction rod is inserted into the socket on the front traction fixing seat. The pressure block and the hinge shaft are connected to the left side of the traction rod. When the front traction lever is rotated counterclockwise, it drives the front traction swing block to swing, which can drive the pressure block and the traction rod to move upward so that the lower end of the traction rod is separated from the socket. After the front traction swing block is separated from the pressure block, the traction rod can automatically rotate and swing to a horizontal state.

5. The spring-loaded automatic reset material cart according to claim 1, characterized in that, A first buffer block is fixed to the front traction fixing seat. When the guide rod is in a horizontal state, it presses on the first buffer block.

6. The spring-loaded automatic reset material cart according to claim 1, characterized in that, The two stepped grooves on the front and rear sides of the lower end of the limiting block are respectively fixed with second buffer rubber blocks, and the second buffer rubber blocks press against the top of the rear traction fixing seat.

7. The spring-loaded automatic reset material cart according to claim 1, characterized in that, Both the front traction lever and the rear traction lever have an L-shaped or T-shaped structure.

8. A tension spring automatic reset material cart according to claim 1, characterized in that, The vehicle body includes a frame and multiple casters fixed to the bottom of the frame.

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