Trailer rod, trailer type heavy-load chassis and trailer type pump truck
By designing a drag rod with adjustable mounting ring height and a drag-type heavy-load chassis combining telescopic legs and vibration-absorbing parts, the problem of irreconcilable angle and cumbersome operation in the existing technology is solved, and different chassis are realized Highly adaptive drag and improve load performance and shock absorption.
Patent Information
- Application Number
- CN202421198786.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The drag rods of the existing drag chassis cannot adjust the angle, resulting in poor adaptability to the mounting and cumbersome operation. The pole protrudes forward when parking the trailer, which affects operating efficiency and safety.
Design a drag rod that can adjust the height of the hook ring, and connects the second rod body with the vertical swing of the first rod body, and adjusts the height of the hook ring with fastener and anti-loosening parts, and drags it It is used in heavy-duty chassis and pump trucks, combining telescopic legs and vibration-absorbing parts to improve load performance and shock absorption.
It realizes adaptive dragging for tractors with different chassis heights, simplifies operation, improves the load performance and shock absorption effect of the drag equipment, and ensures operating safety and flexibility.
Smart Images
Figure CN222271733U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of towing equipment, and in particular relates to a towing rod, a towing heavy-load chassis and a towing pump truck. Background Art
[0002] At present, the towing rods of trailer chassis are mostly hard rods, and their angles relative to the chassis cannot be adjusted, which leads to relatively poor adaptability of the coupling. For tractors with different vehicle heights, adapters are required for connection when coupling, which leads to cumbersome operation. When the trailer is parked, the protruding forward towing rod will also form an obstacle, which also requires the operator to bypass or cross the towing rod when working around the trailer, which will affect the operator's work efficiency and also pose a safety hazard. Utility Model Content
[0003] In order to solve the above technical problems, one of the objectives of the utility model is to provide a towing rod with a simple structure and an adjustable height of the hooking ring.
[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a towing rod, including a first rod body and a second rod body, the first rod body and the second rod body are both arranged along the front and rear directions, the rear end of the second rod body is vertically swingably connected to the front end of the first rod body, and a hanging ring is arranged at the front end of the second rod body.
[0005] The beneficial effect of the above technical solution is that the rear end of the second rod body can be connected to the front end of the chassis body, and the height of the hitch ring can be adjusted by swinging the second rod body to meet the towing needs of tractors with different chassis heights.
[0006] In the above technical solution, a handle is provided at the front upper end of the second rod body, and a cushion block is provided at the front lower end of the second rod body.
[0007] The beneficial effect of the above technical solution is that the second rod body can be rotated by holding the handle to adjust the horizontal height of the hanging ring.
[0008] The above technical solution also includes a buckle, which is provided at the upper end of the rotational connection between the first rod and the second rod, and is used to limit the maximum stroke of the second rod swinging backward and upward relative to the first rod.
[0009] The beneficial effect of the above technical solution is that when the second rod body swings backward and upward to the maximum stroke, the second rod body can be limited relative to the first rod body by the buckle to prevent the second rod body from swinging back and forth relative to the first rod body.
[0010] The fastener in the above technical solution includes a buckle, a hook and an anti-loosening component. The buckle is swingably installed on the rear upper end of the second rod body, the hook is set at the front upper end of the first rod body, and its hook mouth faces backwards, and the anti-loosening component is set at the front upper end of the first rod body and is located at the hook mouth of the buckle. The second rod body swings backward and upward until the buckle is buckled into the hook mouth of the buckle, and the anti-loosening component blocks the hook mouth of the buckle to prevent the buckle from being unhooked.
[0011] The beneficial effect of the above technical solution is that its structure is simple, and when the buckle ring is buckled with the buckle hook, the buckle ring is limited at the hook mouth of the buckle hook by the anti-loosening member to prevent the buckle ring from loosening relative to the buckle hook.
[0012] The anti-loosening component in the above technical solution includes a hinge seat, a torsion spring and a swing plate. The hinge seat is arranged on the first rod body and is located behind the hook mouth of the buckle. The middle part of the swing plate is swingably connected to the hinge seat. The torsion spring is sleeved at the swing connection between the swing plate and the hinge seat, and the two ends of the torsion spring are respectively against the first rod body and the swing plate. The elastic force of the torsion spring is used to drive the swing plate to swing until its front end is tilted toward the rear and upward to block the hook mouth of the buckle. Under the action of external force, the front end of the swing plate is pressed downward to open the hook mouth of the buckle.
[0013] The beneficial effect of the above technical solution is that its structure is simple, so that the anti-loosening member can automatically block the hook opening of the buckle, and the hook opening of the buckle will be opened only under human intervention.
[0014] The second purpose of the utility model is to provide a trailer-type heavy-load chassis which has a simple structure and can carry heavier equipment and can also be towed.
[0015] In order to achieve the above-mentioned purpose, another technical solution of the utility model is as follows: a towing heavy-load chassis, including a chassis body, a plurality of wheel pairs and the towing rod as described above, the chassis body is arranged along the front-to-back direction, and the plurality of wheel pairs are spaced apart along the front-to-back direction at the lower end of the chassis body, and each of the wheel pairs is connected to the lower end of the chassis body through a shock absorber, each of the wheel pairs has two wheels spaced apart along the left-right direction, and the rear end of the first rod body is connected to the middle part of the front end of the chassis body.
[0016] The beneficial effects of the above technical solution are: its structure is simple, so that the towing rod can adjust the horizontal height of the towing ring, and the towing rod can be flipped over for storage, and the wheels are connected to the chassis body through the shock absorbing parts, which can improve the load-bearing performance and shock absorption of the entire towing heavy-duty chassis.
[0017] The above technical solution also includes a plurality of telescopic legs, and a plurality of telescopic legs are arranged at intervals along the front-rear direction on both sides of the chassis body.
[0018] The beneficial effect of the above technical solution is that when the trailer-type heavy-duty chassis is in a parking state, the multiple telescopic legs are extended to pull the chassis body up until the wheels are off the ground.
[0019] The wheelset in the above technical solution also includes an axle, which is arranged in the left-right direction and has the wheels rotatably mounted on both ends thereof, and the axle is connected to the lower end of the chassis body through the vibration damping member.
[0020] The beneficial effects of the above technical solution are: its structure is simple and its vibration reduction effect is good.
[0021] The shock absorber described in the above technical solution includes two bow leaf springs, which are arranged along the front-to-back direction and spaced apart along the left-to-right direction at the lower end corresponding to the chassis body (the bow leaf spring is an existing product, and its structure and installation method belong to the existing technology, so they will not be elaborated here).
[0022] The beneficial effects of the above technical solution are: its structure is simple and its load-bearing performance is good.
[0023] The third purpose of the utility model is to provide a trailer-type pump truck which has a simple structure and is flexible in movement.
[0024] In order to achieve the above-mentioned purpose, another technical solution of the utility model is as follows: a trailer pump truck, comprising a pump body, a power component and the trailer heavy-duty chassis as described above, wherein the pump body and the power component are both arranged on the chassis body, and the pump body and the power component are transmission-connected.
[0025] The beneficial effects of the above technical solution are: it has a simple structure and is flexible in movement, can be towed to the working place, and can be put into operation quickly. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a vertical view of the towing rod described in Example 1 of the utility model;
[0027] Figure 2 for Figure 1 The enlarged view of point B in the middle;
[0028] Figure 3 This is a side view of the towing rod described in Example 1 of the utility model;
[0029] Figure 4 for Figure 3 The enlarged view of point A in the middle;
[0030] Figure 5This is a schematic diagram of the structure of the swing connection between the first rod body and the second rod body in Example 1 of the utility model;
[0031] Figure 6 This is a schematic structural diagram of the trailer-type heavy-duty chassis described in Example 2 of the utility model;
[0032] Figure 7 This is a schematic diagram of the connection between the second rod body and the chassis body in Example 2 of the utility model;
[0033] Figure 8 This is a schematic structural diagram of the trailer pump truck described in Example 3 of the utility model.
[0034] In the figure: 11 first rod body; 111 plug-in slot; 1111 bolt hole; 112 abutting rod; 12 second rod body; 121 handle; 122 cushion block; 13 buckle; 131 buckle ring; 132 hook; 133 anti-loosening member; 1331 hinge seat; 1332 torsion spring; 1333 swing plate; 134 slot; 14 mounting ring; 1 towing rod; 2 chassis body; 21 docking hole; 3 wheel pair; 31 wheel; 32 axle; 4 shock absorber; 41 bow leaf spring; 5 telescopic leg; 6 bolt rod; 100 towing heavy-duty chassis; 200 pump body; 300 power part. DETAILED DESCRIPTION
[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.
[0036] Example 1
[0037] As 1 and Figure 3 As shown, this embodiment provides a towing rod, including a first rod body 11 and a second rod body 12, wherein the first rod body 11 and the second rod body 12 are both arranged along the front-to-back direction, the rear end of the second rod body 12 is vertically swingably connected to the front end of the first rod body 11, and a connecting ring 14 is arranged at the front end of the second rod body 12, so that the rear end of the second rod body can be connected to the front end of the chassis body, and at this time, the height of the connecting ring 14 can be adjusted by swinging the second rod body, thereby satisfying the towing of tractors with different chassis heights.
[0038] In the above technical solution, a handle 121 is provided at the front upper end of the second rod body 12, and a cushion block 122 is provided at the front lower end of the second rod body 12, so that the second rod body can be rotated by holding the handle to adjust the horizontal height of the hanging ring.
[0039] like Figure 1-Figure 5 As shown, the above technical solution also includes a buckle 13, and the upper end of the rotational connection between the first rod body 11 and the second rod body 12 is provided with the buckle 13, and the buckle 13 is used to limit the maximum stroke of the second rod body 12 swinging backward and upward relative to the first rod body 11. In this way, when the second rod body swings backward and upward to the maximum stroke, the second rod body can be limited relative to the first rod body by the buckle to prevent the second rod body from swinging back and forth relative to the first rod body, wherein the buckle 13 includes a buckle ring 131, a buckle hook 132 and an anti-loosening member 133, and the buckle ring 131 is swingably installed on the second rod body 11. At the rear upper end of the second rod body 12, the hook 132 is arranged at the front upper end of the first rod body 11, and its hook mouth faces backward, and the anti-loosening member 133 is arranged at the front upper end of the first rod body 11 and is located at the hook mouth of the hook 132. The second rod body 12 swings backward and upward until the buckle 131 is buckled into the hook mouth of the buckle 132, and the hook mouth of the buckle 132 is blocked by the anti-loosening member 133 to prevent the buckle 131 from being unhooked. The structure is simple, and when the buckle is buckled with the buckle, the anti-loosening member limits the buckle at the hook mouth of the buckle to prevent the buckle relative to the buckle.
[0040] The anti-loosening member 133 in the above technical solution includes a hinge seat 1331, a torsion spring 1332 and a swing plate 1333. The hinge seat 1331 is arranged on the first rod body 11 and is located behind the hook mouth of the buckle hook 132. The middle part of the swing plate 1333 is swingably connected with the hinge seat 1331. The torsion spring 1332 is sleeved at the swing connection between the swing plate 1333 and the hinge seat 1331, and the two ends of the torsion spring 1332 are respectively connected to the hinge seat 1331. The first rod body 11 and the swing plate 1333 are offset against each other, and the elastic force of the torsion spring 1332 is used to drive the swing plate 1333 to swing until its front end is tilted toward the rear and upward to block the hook mouth of the buckle hook 132. Under the action of external force, the front end of the swing plate 1333 is pressed downward to open the hook mouth of the buckle hook 132. The structure is simple, so that the anti-loosening component will automatically block the hook mouth of the buckle hook, and the hook mouth of the buckle hook will be opened only under human intervention.
[0041] The rear end of the swing plate described in this embodiment can also be used as a buckle. When the rear end of the swing plate is manually buckled upward, the front end of the swing plate swings downward to open the hook of the buckle.
[0042] like Figure 1 and Figure 2As shown, the buckle 13 in this embodiment may also include a slot 134 (U-shaped slot, and its slot side becomes narrower), the inner slot of which runs through the left and right sides, and is arranged at the upper end of the second rod body and in front of the buckle. After the buckle is unhooked from the hook, the buckle can be swung to the connection between it and the hook and snapped into the slot to limit the buckle to avoid the buckle swinging and generating impact noise.
[0043] In this embodiment, a plug-in slot 111 is provided at the rear end of the first rod body, the slot opening of the plug-in slot faces backwards and is connected on both sides. The slot walls on both sides of the plug-in slot are spaced apart vertically, and bolt holes 1111 that penetrate and align vertically are provided on the slot walls on both sides. The bolt holes are used to insert the bolt rod 6, and limit rods 112 are protruded from both sides of the first rod body along the left and right directions.
[0044] Example 2
[0045] like Figure 6 and Figure 7 As shown, the present embodiment provides a towing heavy-duty chassis, comprising a chassis body 2, a plurality of wheel pairs 3 and a towing rod 1 as described in Example 2, wherein the chassis body 2 is arranged along the front-to-back direction, and the plurality of wheel pairs 3 are spaced apart along the front-to-back direction at the lower end of the chassis body 2, and each of the wheel pairs 3 is connected to the lower end of the chassis body 2 via a shock absorber 4, respectively, and each of the wheel pairs 3 has two wheels 31 spaced apart along the left-right direction, and the rear end of the first rod body 11 is connected to the middle part of the front end of the chassis body 2, and the structure is simple, so that the towing rod can adjust the horizontal height of the towing ring, and the towing rod can also be flipped for storage, and the wheel pairs are connected to the chassis body via the shock absorber, which can improve the load-bearing performance and shock absorption of the entire towing heavy-duty chassis.
[0046] The above technical solution also includes a plurality of telescopic legs 5, and a plurality of telescopic legs 5 are arranged at intervals along the front-rear direction on both sides of the chassis body 2, so that when the trailer-type heavy-load chassis is in the parking state, the plurality of telescopic legs are extended to pull the chassis body up until the wheels are off the ground.
[0047] The wheelset 3 in the above technical solution also includes an axle 32, which is arranged in the left and right directions, and the wheels 31 are rotatably mounted at both ends thereof. The axle 32 is connected to the lower end of the chassis body 2 through the shock absorbing member 4, and has a simple structure and good shock absorbing effect.
[0048] The shock absorber 4 in the above technical solution includes two bow leaf springs 41, which are arranged along the front-to-back direction and spaced apart along the left-to-right direction at the lower end of the corresponding position of the chassis body 2. It has a simple structure and good load-bearing performance.
[0049] The telescopic legs are hydraulic telescopic legs or hand-cranked telescopic legs, both of which belong to the prior art and will not be described in detail here.
[0050] In this embodiment, a docking hole is provided in the middle of the front end of the chassis body, the front end of the chassis body is inserted into the plug-in slot 111, and the docking hole 21 is aligned with the bolt hole and the bolt rod 6 is inserted, so that the first rod body is connected to the front end of the chassis body, and the first rod body will swing left and right relative to the chassis body. At this time, the limiting rods 112 on both sides will limit the left and right swinging angle of the first rod body relative to the chassis body (that is, the maximum swinging angle of the first rod body to each side relative to the corresponding chassis body is that the end of the abutment rod away from the first rod body abuts against the front end of the chassis body).
[0051] Example 3
[0052] like Figure 8 As shown, this embodiment provides a trailer pump truck, including a pump body 200, a power component 300 and a trailer heavy-duty chassis 100 as described in Example 2, wherein the pump body 200 and the power component 300 are both arranged on the chassis body, and the pump body 200 and the power component 300 are transmission connected, and have a simple structure and are flexible in movement. They can be towed to the work site and quickly put into operation. In this embodiment, the pump body can be a multi-stage pump, and the power component can be an engine or an electric component, preferably a diesel engine.
[0053] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.
Claims
1. A towing rod, characterized in that: The invention comprises a first rod body (11) and a second rod body (12), wherein the first rod body (11) and the second rod body (12) are both arranged in the front-to-back direction, the rear end of the second rod body (12) is vertically swingably connected to the front end of the first rod body (11), and the front end of the second rod body (12) is provided with a hanging ring (14).
2. The towing rod according to claim 1, characterized in that: A handle (121) is provided at the front upper end of the second rod body (12), and a cushion block (122) is provided at the front lower end of the second rod body (12).
3. The towing rod according to claim 1, characterized in that: The invention also comprises a buckle (13), wherein the buckle (13) is arranged at the upper end of the rotation connection between the first rod body (11) and the second rod body (12), and the buckle (13) is used to limit the maximum stroke of the second rod body (12) swinging backward and upward relative to the first rod body (11).
4. The towing rod according to claim 3, characterized in that: The buckle (13) comprises a buckle ring (131), a buckle hook (132) and an anti-loosening member (133); the buckle ring (131) is swingably mounted on the rear upper end of the second rod body (12); the buckle hook (132) is arranged on the front upper end of the first rod body (11) with its hook opening facing backwards; the anti-loosening member (133) is arranged on the front upper end of the first rod body (11) and is located at the hook opening of the buckle hook (132); the second rod body (12) swings backwards and upwards until the buckle ring (131) is buckled into the hook opening of the buckle hook (132), and the anti-loosening member (133) blocks the hook opening of the buckle hook (132) to prevent the buckle ring (131) from being unhooked.
5. The towing rod according to claim 4, characterized in that: The anti-loosening member (133) comprises a hinge seat (1331), a torsion spring (1332) and a swing plate (1333); the hinge seat (1331) is arranged on the first rod body (11) and is located behind the hook mouth of the buckle hook (132); the middle part of the swing plate (1333) is swingably connected to the hinge seat (1331); the torsion spring (1332) is sleeved between the swing plate (1333) and the hinge seat (1331); 1), and the two ends of the torsion spring (1332) are respectively against the first rod body (11) and the swing plate (1333), the elastic force of the torsion spring (1332) is used to drive the swing plate (1333) to swing until its front end is tilted toward the rear and upward to block the hook mouth of the buckle hook (132), and under the action of external force, the front end of the swing plate (1333) is pressed downward to open the hook mouth of the buckle hook (132).
6. A trailer-type heavy-duty chassis, characterized in that: The invention comprises a chassis body (2), a plurality of wheel pairs (3) and a towing rod (1) as claimed in any one of claims 1 to 5, wherein the chassis body (2) is arranged in the front-to-back direction, the plurality of wheel pairs (3) are spaced apart at the lower end of the chassis body (2) in the front-to-back direction, and each of the wheel pairs (3) is connected to the lower end of the chassis body (2) via a shock absorbing member (4), each of the wheel pairs (3) has two wheels (31) spaced apart in the left-right direction, and the rear end of the first rod body (11) is connected to the middle of the front end of the chassis body (2).
7. The trailer-type heavy-duty chassis according to claim 6, characterized in that: It also comprises a plurality of telescopic legs (5), and the plurality of telescopic legs (5) are arranged at intervals along the front-rear direction on both sides of the chassis body (2).
8. The trailer-type heavy-duty chassis according to claim 6, characterized in that: The wheel set (3) further comprises a wheel axle (32), the wheel axle (32) being arranged in the left-right direction, and the wheels (31) being rotatably mounted at both ends thereof, and the wheel axle (32) being connected to the lower end of the chassis body (2) via the vibration damping member (4).
9. The trailer-type heavy-duty chassis according to claim 8, characterized in that: The vibration damping member (4) comprises two bow leaf springs (41), which are arranged along the front-rear direction and spaced apart along the left-right direction at the lower end of the corresponding position of the chassis body (2).
10. A trailer pump truck, characterized in that: The invention comprises a pump body (200), a power piece (300) and a towable heavy-duty chassis (100) as claimed in any one of claims 6 to 9, wherein the pump body (200) and the power piece (300) are both arranged on the chassis body, and the pump body (200) and the power piece (300) are transmission-connected.