A crude benzene loading crane pipe
By designing auxiliary supports and convenient locking mechanisms, the problems of easy wear and time-consuming connection of the bottom loading arm are solved, realizing flexible support and quick connection of the loading arm, and improving loading and unloading efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JINGSHANG CHEMICAL CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-06-26
AI Technical Summary
The bottom loading arm for loading crude benzene is prone to wear and tear during frequent operation, and the connection is time-consuming. There is a risk of failure and falling off, and the traditional connection structure is inconvenient.
A bottom loading arm is designed, which includes an auxiliary support mechanism and a convenient locking mechanism. The auxiliary support mechanism provides flexible support through a telescopic rod and casters, while the convenient locking mechanism enables quick connection through a screw and a ball locking structure.
It improves the service life of loading arms, avoids the risk of failure and falling, and greatly saves connection time, thus improving loading and unloading efficiency.
Smart Images

Figure CN224411403U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bottom loading arms for loading crude benzene, specifically a bottom loading arm for loading crude benzene. Background Technology
[0002] The bottom loading arm for crude benzene is a specialized piece of equipment developed for the efficient and safe transfer of high-risk liquids in the chemical logistics field. Its development stems from the pain points exposed by traditional top-loading methods: open operation easily leads to benzene volatilization pollution, manual climbing of tank trucks poses a risk of falls, high-level filling easily generates static electricity, and loading and unloading efficiency is limited by manual operation. Core functions include precise docking, quantitative conveying, volatilization recovery, risk control, and process optimization. Structurally, the rotary joint adopts a multi-degree-of-freedom design to adapt to different tank truck interface positions; the vertical pipe is equipped with a telescopic adjustment mechanism and an intelligent positioning system to achieve unmanned and precise docking; the gas phase loop uses negative pressure recovery or condensation technology to introduce volatile organic compounds (VOCs) into the treatment device, with environmental indicators exceeding the requirements of the national standard GB20950; the quantitative loading system integrates a high-precision mass flow meter and PLC control, with an error rate of less than 0.5%, and simultaneously links with ERP to achieve data traceability. In addition to leakage prevention, the safety dimension focuses on integrating three layers of protection: a ring-shaped electrostatic grounding grid to eliminate static electricity during loading, with an impedance value ≤10Ω; an explosion-proof oxygen content monitoring module to prevent flammable gas explosions; and a hydraulic buffer device to absorb tank truck displacement deviations and avoid mechanical damage.
[0003] The bottom loading arm for crude benzene plays an important role in the bottom loading of crude benzene. It has good adjustability and can be self-supported. However, the device weighs tens of kilograms and frequent operation can easily cause it to wear out quickly. In order to avoid the risk of it malfunctioning and falling, it is necessary to provide it with flexible support. Moreover, the device is connected by a large number of flanges and bolts, which is very time-consuming. Therefore, it is necessary to provide it with a simple connection structure. Utility Model Content
[0004] The purpose of this utility model is to provide a bottom loading arm for loading crude benzene onto trucks, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a bottom loading arm for loading crude benzene, comprising a support, a feeding pipe fixedly connected to one side of the support, a discharge port provided at one end of the feeding pipe, and a lever valve connected to the upper side of the discharge port; an auxiliary support mechanism is provided on the lower side of the feeding pipe; and a convenient locking mechanism is provided on the outside of the feeding pipe.
[0006] The auxiliary support mechanism includes a hanging ring rotatably connected to the outer wall of the feeding pipe. A telescopic rod is fixedly connected to the lower surface of the hanging ring, and a sliding plate is fixedly connected to the lower end of the telescopic rod. A support cylinder is slidably and sealingly connected to the outer wall of the sliding plate. A spring is fixedly connected between the inner wall of the support cylinder and the sliding plate. A pressure regulating pipe is connected to one side of the support cylinder. An elastic element is fixedly connected inside the pressure regulating pipe, and a stop ball is fixedly connected to the end of the elastic element. A bracket is fixedly connected to the inner wall of the pressure regulating pipe, and a sliding rod is slidably connected to the inner wall of the bracket. One end of the sliding rod is fixedly connected to the stop ball, and one end of the sliding rod is fixedly connected to a top plate. A caster wheel is rotatably connected to the lower side of the support cylinder.
[0007] Preferably, the pressure regulating pipe is located on the lower side of the support cylinder.
[0008] Preferably, the inner wall of the pressure regulating pipe is fixedly connected with multiple annular structures.
[0009] Preferably, the diameter of the baffle ball is set between the inner diameter and the outer diameter of the annular structure inside the pressure regulating pipe.
[0010] Preferably, the convenient locking mechanism includes an upper flange and a lower flange, both of which are fixedly connected to the outer wall of the feeding pipe. A mounting base is fixedly connected to the upper surface of the upper flange, and a locking cylinder is fixedly connected to the lower side of the mounting base. A screw is threadedly connected to the inner wall of the locking cylinder, and a sleeve is rotatably connected to the outer wall of the screw. A deformable element is fixedly connected between the sleeve and the inner wall of the locking cylinder. A limiting seat is fixedly connected inside the lower flange. A top ball is fixedly connected to the lower end of the screw. An elastic ring is fixedly connected to the inner wall of the locking cylinder, and a locking ball is fixedly connected to the lower side of the elastic ring. The locking ball is disposed inside the locking cylinder, and a locking hole is opened at the lower end of the locking cylinder.
[0011] Preferably, there are multiple locking balls and locking holes, which are evenly distributed inside the lock cylinder.
[0012] Preferably, the limiting seat has an inclined surface structure inside.
[0013] Compared with the prior art, this utility model provides a bottom loading arm for loading crude benzene, which has the following advantages:
[0014] 1. The convenient locking mechanism is used to quickly connect various parts of the loading arm. This mechanism can make the locking ball limit seat collide by turning the rotating block, so that the screw cannot be pulled out. At the same time, since the screw is a threaded structure, it will be displaced when it is turned, so that the two flanges come close to each other and are locked. Compared with the connection of bolts and nuts, this mechanism can save time and improve efficiency.
[0015] 2. The auxiliary support mechanism is used to assist in supporting the loading arm. This mechanism controls the lifting of the telescopic rod through one-way air pressure. Users can quickly release the air pressure inside the cylinder by pushing the top plate, so that the loading arm can be adjusted downwards. It is highly flexible and can provide additional support for the loading arm, increasing its lifespan or avoiding the risk of it malfunctioning and falling to the ground. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;
[0019] Figure 3 This is a schematic diagram of the hanging ring structure in this utility model;
[0020] Figure 4 This is a cross-sectional structural diagram of the feeding tube of this utility model;
[0021] Figure 5 This is a schematic diagram of the locking ball structure in this utility model.
[0022] In the diagram: 1. Support; 2. Feeding pipe; 3. Discharge port; 4. Threshold valve; 5. Auxiliary support mechanism; 501. Hanging ring; 502. Telescopic rod; 503. Sliding plate; 504. Support cylinder; 505. Spring; 506. Pressure regulating pipe; 507. Elastic element; 508. Stop ball; 509. Bracket; 510. Sliding rod; 511. Top plate; 512. Caster wheel; 6. Convenient locking mechanism; 601. Upper flange; 602. Lower flange; 603. Mounting seat; 604. Locking cylinder; 605. Screw; 606. Sleeve disc; 607. Deformation element; 608. Limiting seat; 609. Top ball; 610. Elastic ring; 611. Locking ball; 612. Locking hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] Example 1:
[0026] This mechanism provides support for the feed pipe 2, and it addresses the issue of potential damage to the feed pipe 2 leading to injury upon impact. Please refer to [link / reference needed]. Figure 1-5 This utility model provides a technical solution: a bottom loading arm for loading crude benzene, including a support 1, a feeding pipe 2 fixedly connected to one side of the support 1, a discharge port 3 provided at one end of the feeding pipe 2 and a lever valve 4 connected to the upper side of the discharge port 3, an auxiliary support mechanism 5 provided at the lower side of the feeding pipe 2, and a convenient locking mechanism 6 provided on the outside of the feeding pipe 2.
[0027] The auxiliary support mechanism 5 includes a hanging ring 501, which is rotatably connected to the outer wall of the feeding pipe 2. A telescopic rod 502 is fixedly connected to the lower surface of the hanging ring 501. A sliding plate 503 is fixedly connected to the lower end of the telescopic rod 502. A support cylinder 504 is slidably connected to the outer wall of the sliding plate 503. A spring 505 is fixedly connected between the inner wall of the support cylinder 504 and the sliding plate 503. A pressure regulating pipe 506 is connected to one side of the support cylinder 504. An elastic element 507 is fixedly connected inside the pressure regulating pipe 506. A stop ball 508 is fixedly connected to the end of the elastic element 507. A bracket 509 is fixedly connected to the inner wall of the pressure regulating pipe 506. A sliding rod 510 is slidably connected to the inner wall of the bracket 509. One end of the sliding rod 510 is fixedly connected to the stop ball 508. A top plate 511 is fixedly connected to one end of the sliding rod 510. A caster wheel 512 is rotatably connected to the lower side of the support cylinder 504.
[0028] Furthermore, the pressure regulating pipe 506 is located on the lower side of the support cylinder 504.
[0029] Furthermore, the inner wall of the pressure regulating pipe 506 is fixedly connected with multiple annular structures.
[0030] Furthermore, the diameter of the ball stop 508 is set between the inner and outer diameters of the annular structure inside the pressure regulating pipe 506.
[0031] Example 2:
[0032] This mechanism is used for quick assembly and disassembly of feed tube 2, solving the problem of time-consuming assembly and disassembly of feed tube 2. Please refer to [link / reference]. Figure 1-5Furthermore, in conjunction with Embodiment 1, the convenient locking mechanism 6 includes an upper flange 601 and a lower flange 602. Both the upper flange 601 and the lower flange 602 are fixedly connected to the outer wall of the feeding pipe 2. An mounting base 603 is fixedly connected to the upper surface of the upper flange 601. A locking cylinder 604 is fixedly connected to the lower side of the mounting base 603. A screw 605 is threadedly connected to the inner wall of the locking cylinder 604. A sleeve 606 is rotatably connected to the outer wall of the screw 605. A deformable element 607 is fixedly connected between the sleeve 606 and the inner wall of the locking cylinder 604. A limiting seat 608 is fixedly connected inside the lower flange 602. A top ball 609 is fixedly connected to the lower end of the screw 605. An elastic ring 610 is fixedly connected to the inner wall of the locking cylinder 604. A locking ball 611 is fixedly connected to the lower side of the elastic ring 610. The locking ball 611 is located inside the locking cylinder 604. A locking hole 612 is opened at the lower end of the locking cylinder 604.
[0033] Furthermore, multiple locking balls 611 and locking holes 612 are provided, and the locking balls 611 and locking holes 612 are evenly distributed inside the locking cylinder 604.
[0034] Furthermore, the limit seat 608 has an inclined surface structure inside.
[0035] In actual operation, when this device is in use, the user can turn the screw 605 when disassembling or assembling the feeding pipe 2. When the screw 605 rotates, it drives the top ball 609 to move. When the locking ball 611 is pushed out of the locking cylinder 604 by the top ball 609, the user can continue to turn the screw 605 to lock the upper flange 601 and the lower flange 602. When the locking ball 611 and the top ball 609 disengage, the upper flange 601 and the lower flange 602 can be separated, which is convenient for the user to disassemble and assemble the feeding pipe 2. During the user's traction of the feeding pipe 2, the air pressure inside the support cylinder 504 can support the feeding pipe 2. The user can push the top plate 511 to make the feeding pipe 2 lose support, which is convenient for the user to adjust and protect the feeding pipe 2.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A loading arm for loading crude benzene, comprising a support (1), a feeding pipe (2) fixedly connected to one side of the support (1), a discharge port (3) provided at one end of the feeding pipe (2), and a lever valve (4) connected to the upper side of the discharge port (3), characterized in that: An auxiliary support mechanism (5) is provided on the lower side of the feeding pipe (2), and a convenient locking mechanism (6) is provided on the outside of the feeding pipe (2); The auxiliary support mechanism (5) includes a hanging ring (501), which is rotatably connected to the outer wall of the feeding pipe (2). A telescopic rod (502) is fixedly connected to the lower surface of the hanging ring (501). A sliding plate (503) is fixedly connected to the lower end of the telescopic rod (502). A support cylinder (504) is slidably connected to the outer wall of the sliding plate (503). A spring (505) is fixedly connected between the inner wall of the support cylinder (504) and the sliding plate (503). A pressure regulating pipe (505) is connected to one side of the support cylinder (504). 06), an elastic element (507) is fixedly connected inside the pressure regulating pipe (506), a ball stop (508) is fixedly connected to the end of the elastic element (507), a bracket (509) is fixedly connected to the inner wall of the pressure regulating pipe (506), a sliding rod (510) is slidably connected to the inner wall of the bracket (509), one end of the sliding rod (510) is fixedly connected to the ball stop (508), a top plate (511) is fixedly connected to one end of the sliding rod (510), and a caster wheel (512) is rotatably connected to the lower side of the support cylinder (504).
2. The loading arm for loading crude benzene according to claim 1, characterized in that: The pressure regulating pipe (506) is located on the lower side of the support cylinder (504).
3. The loading arm for loading crude benzene according to claim 1, characterized in that: The inner wall of the pressure regulating pipe (506) is fixedly connected with multiple annular structures.
4. The loading arm for loading crude benzene according to claim 1, characterized in that: The diameter of the ball stop (508) is set between the inner diameter and the outer diameter of the annular structure inside the pressure regulating pipe (506).
5. The loading arm for loading crude benzene according to claim 1, characterized in that: The convenient locking mechanism (6) includes an upper flange (601) and a lower flange (602). Both the upper flange (601) and the lower flange (602) are fixedly connected to the outer wall of the feeding pipe (2). A mounting base (603) is fixedly connected to the upper surface of the upper flange (601). A locking cylinder (604) is fixedly connected to the lower side of the mounting base (603). A screw (605) is threadedly connected to the inner wall of the locking cylinder (604). A sleeve (606) is rotatably connected to the outer wall of the screw (605). A deformable element (607) is fixedly connected between the inner wall of the sleeve (606) and the locking cylinder (604). A limiting seat (608) is fixedly connected inside the lower flange (602). A top ball (609) is fixedly connected to the lower end of the screw (605). An elastic ring (610) is fixedly connected to the inner wall of the locking cylinder (604). A locking ball (611) is fixedly connected to the lower side of the elastic ring (610). The locking ball (611) is disposed inside the locking cylinder (604). A locking hole (612) is opened at the lower end of the locking cylinder (604).
6. The loading arm for loading crude benzene according to claim 5, characterized in that: Multiple locking balls (611) and locking holes (612) are provided, and the locking balls (611) and locking holes (612) are evenly distributed inside the lock cylinder (604).
7. The loading arm for loading crude benzene according to claim 5, characterized in that: The limiting seat (608) has an inclined surface structure inside.