Adjustable refrigeration unit hanger

Abstract

This utility model relates to the field of maintenance and installation tools for refrigeration units in tobacco factories, specifically an adjustable refrigeration unit lifting tool. It includes a main support, two support arms, and an adjustable crossbar. The main support is equipped with a lifting structure for connecting lifting equipment. The two support arms are hinged to both sides of the main support, and their working ends are used to connect to the lifting points of the refrigeration unit. The crossbar is positioned between the two support arms to adjust and lock the opening angle between them. Both ends of the crossbar are slidably connected to the support arms and fixed by a fastening structure. The working ends of the support arms are equipped with front and rear clamps, with pins passing between them to clamp and fix the refrigeration unit's lifting points, achieving stable clamping. This utility model has a simple structure, flexible adjustment, and is suitable for the lifting needs of different models of refrigeration units. It is easy to operate, has reliable connections, and improves the efficiency and safety of lifting operations, making it particularly suitable for industrial maintenance scenarios with limited space and complex equipment structures.

Description

Technical Field

[0001] This utility model relates to the field of maintenance and installation tools for tobacco factory refrigeration machines, specifically to an adjustable refrigeration machine hoist. Background Technology

[0002] Cigarette factories have significant heat and cooling requirements during daily production, typically equipped with multiple large refrigeration units to maintain a stable production environment. To ensure the long-term efficient operation of these refrigeration units, regular inspections and maintenance of their key components are necessary.

[0003] During maintenance, it is often necessary to lift core components of the refrigeration unit, such as the condenser end cap. Due to the large size and weight of the refrigeration unit, and the differences in structural parameters between different models, traditional lifting methods rely heavily on general-purpose lifting tools, such as overhead cranes and crane hoists. These general-purpose lifting tools are not specifically designed for refrigeration unit structures, and their use often requires frequent replacement of lifting accessories to adapt to different parts or models. This results in cumbersome operations, low work efficiency, and significant reliance on manual labor, increasing safety hazards.

[0004] Furthermore, most existing general-purpose lifting devices lack the ability to adapt and adjust the spacing between lifting points and the balance of forces, which can easily lead to problems such as uneven loading and detachment during lifting, posing significant safety risks. Therefore, there is an urgent need for a specialized lifting device that is structurally sound, flexibly adjustable, and safe and reliable in operation to improve the efficiency and safety of cigarette factory refrigeration unit maintenance. Utility Model Content

[0005] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides an adjustable refrigeration unit lifting device, which can quickly adjust parameters to adapt to refrigeration units of different sizes and models.

[0006] To achieve the above objectives, this utility model provides an adjustable refrigeration unit hoist, comprising: The main support frame has a lifting connection structure at its top for connecting lifting equipment. The left and right support arms are hinged to both sides of the main support. Each support arm has a connecting end at one end and a working end at the other end. The working end is used to connect with the hoisting structure of the refrigeration unit. A crossbar, positioned between two support arms, is used to adjust and lock the opening angle between the two support arms. The two ends of the crossbar are slidably connected to the two support arms and fixed by a fastening structure. The working end of each support arm includes a front clamping plate and a rear clamping plate arranged parallel to each other. A clamping space is formed between the two clamping plates to accommodate the refrigeration unit hoisting structure, and the clamping plates are connected to the refrigeration unit hoisting structure by a through-hole pin.

[0007] Preferably, the hoisting connection structure is a lifting ring or lifting lug located on the top of the main support.

[0008] Preferably, the two support arms are made of angle steel, square steel or reinforcing steel.

[0009] Preferably, when the support arm is made of steel bars, the working end of the support arm is stamped to form a flat head structure, and a through hole for inserting a pin is provided on it.

[0010] Preferably, the crossbar is a flat steel structure with a groove in the middle. The groove is an oblong hole, and the fastening structure includes a set screw inserted in the groove.

[0011] Preferably, the set screw is provided with an anti-loosening structure, which is a double nut.

[0012] Preferably, the connection between the crossbar and the support arm is as follows: sliding connecting parts are provided at both ends of the crossbar, and the sliding connecting parts can slide along the length direction of the support arm and be locked by fasteners.

[0013] Preferably, the two arms are opened in the use state to form a compass-like structure.

[0014] Preferably, the lifting device is suitable for being arranged in pairs at the front and rear ends of the refrigeration unit, with the two sets of lifting devices respectively connected to the front and rear lifting points of the refrigeration unit, and used in conjunction with the lifting equipment for synchronous lifting operations.

[0015] Preferably, after the pin passes through the refrigeration unit's lifting point and the front and rear clamping plates, it is limited and fixed by a locking component, which is a cotter pin, nut, or elastic snap ring.

[0016] The adjustable refrigeration unit hoist provided by the above-mentioned technical solution of this utility model has the following beneficial effects: The structure is highly versatile and adaptable to the lifting point layout of various refrigeration unit models. In this application, two support arms are connected to both sides of the main support in a hinged manner to form a compass-like structure. The opening angle of the support arms can be adjusted by a crossbar of adjustable length, which can flexibly adjust the lifting point spacing according to different refrigeration unit models, significantly improving the universality and adaptability of the lifting tool and avoiding the problem of frequent changes in lifting fixtures.

[0017] The system offers multiple adjustment methods and is easy to operate on-site. The crossbar is designed with a sliding adjustment structure, allowing for adjustment via the length of the crossbar itself or by sliding between the crossbar ends and the outriggers to change the distance between the outriggers. Combined with set screws and a sliding groove structure, it enables quick positioning and locking. Operators can quickly adjust the lifting equipment on-site, significantly improving the efficiency of lifting preparation.

[0018] The lifting connection is reliable, ensuring operational safety. The outrigger is equipped with front and rear clamps at the end, which securely clamp and lock the refrigeration unit's lifting points via pins, effectively preventing the risk of detachment due to force shift during lifting. At the same time, the double-nut anti-loosening structure enhances the stability of the entire lifting device's connection points during lifting, strengthening safety assurance capabilities.

[0019] With its simple structure and low manufacturing cost, this product is easy to promote and apply. The structural design of this application is based on common profiles and connecting components, such as angle steel, flat steel, reinforcing bars, pins, and screws, facilitating on-site processing and maintenance. It requires no complex manufacturing processes or specialized equipment, making it suitable for widespread use in the refrigeration equipment repair industry.

[0020] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] Figure 1 This is a front view of the lifting device of this utility model; Figure 2 This is a side view of the lifting device of this utility model; Explanation of reference numerals in the attached figures 1-Main support frame, 1a-Lifting connection structure; 2-Outrigger, 2a-Connecting end, 2b-Working end; 3-Horizontal bar. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 and attached Figure 2 The specific embodiments of this utility model will be described in detail below. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0023] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself.

[0024] This utility model provides an adjustable lifting device for hoisting refrigeration units. Its reasonable structural design allows it to adapt to the different hoisting point spacings of various refrigeration unit models, improving the ease of operation and safety during hoisting. The lifting device mainly includes a main support 1 mounted on the upper part. The main support 1 has a hoisting connection structure 1a that connects to hoisting equipment, facilitating overall hoisting via a lifting device. Two support arms 2 are hinged to the left and right sides of the main support 1, respectively. Each support arm 2 has a connecting end 2a and a working end 2b. The connecting end 2a is used to hinge with the main support 1, and the working end 2b is used to connect with the hoisting structure (such as a lifting lug or lifting ring) on ​​the refrigeration unit body.

[0025] An adjustable crossbar 3 is provided between the two support arms 2 to adjust and lock the opening angle between the support arms 2, thereby adapting to the spacing between the lifting points on both sides of different refrigeration units. The adjustment of the crossbar 3 can include adjusting the length of the crossbar 3 body or adjusting the sliding fit between the two ends of the crossbar 3 and the support arms 2. Both can be fixed and locked in position through a fastening structure to ensure structural stability during the lifting process.

[0026] During use, the opening angle between the two outriggers 2 can be adjusted according to the specific model and size of the refrigeration unit being lifted, so that the working ends 2b of the two outriggers 2 are aligned and connected to the two corresponding lifting points of the refrigeration unit. The working ends 2b of the outriggers 2 are equipped with parallel front and rear clamps. The clamps are connected to the lifting points of the refrigeration unit by pins, so as to achieve a quick and reliable connection and ensure the safety and efficiency of the lifting operation.

[0027] The aforementioned lifting device has a simple structure and flexible adjustment, and is suitable for being installed in pairs at the front and rear ends of the refrigeration unit. With the cooperation of lifting equipment, it can achieve synchronous lifting of the entire unit. It is particularly suitable for maintenance operations in situations where space is limited, such as cigarette factories, and where there are various models of refrigeration equipment.

[0028] Main support 1: The lifting device of this utility model includes a main support 1 at the top, which is a steel connecting component. A lifting connection structure 1a is provided on its upper part for connecting with lifting equipment (such as an electric hoist, crane hook, etc.). The lifting connection structure 1a can be a welded or bolted lifting ring, lifting lug, or U-shaped ring, etc., used to bear the entire weight of the lifting device body and the equipment being lifted during lifting operations.

[0029] Two connecting parts are provided on each of the lower sides of the main support 1 for hinged engagement with the connecting ends 2a of the two support arms 2. Preferably, the main support 1 is formed entirely of steel plate by bending, welding or processing of structural steel, which has good strength and torsional resistance, and can ensure stability during hoisting.

[0030] Outrigger 2: Two support arms 2 are hinged to the left and right sides of the main support 1. Each support arm 2 is a long rod-shaped structure, consisting of two parallel rods, which can be conventional profiles such as angle steel, square steel, or reinforcing steel.

[0031] In a specific embodiment, the support arm 2 is made of angle steel, and each support arm 2 includes a connecting end 2a and a working end 2b. The connecting end 2a is hinged to the main support 1 by a pin, so that the support arm 2 can rotate around the hinge axis to open or close, thereby adjusting the included angle between the two support arms 2.

[0032] The working end 2b of the support arm 2 is the lower end, and it is equipped with two clamping plates, one at the front and one at the back. The clamping plates form a space for holding the lifting points. The clamping plates are provided with through holes for inserting pins to reliably fix the lifting points of the refrigeration unit. If steel bars are used as the material for the support arm 2, the lower end of the steel bars can be stamped or forged to form a flat-head structure, and mounting holes can be machined on the flat head to facilitate the connection between the clamping plates and the pins.

[0033] Worker 2b: The working end 2b of the support arm 2 is configured as two parallel clamping plates, which are used to clamp the refrigeration unit hoisting structure (such as lifting lugs). Each of the two clamping plates has a set of aligned through holes for inserting a pin.

[0034] Before hoisting, adjust the two outriggers 2 of the lifting device to the target distance and align them with the left and right lifting points of the refrigeration unit; place the clamps on the front and rear sides of the lifting lugs respectively, and achieve mechanical connection by passing the pin through the front clamp, the lifting lug and the rear clamp.

[0035] The end of the pin can be limited by a cotter pin, elastic snap ring, or nut to prevent it from coming loose during hoisting, thereby ensuring the reliability of the hoisting point connection and the safety of the hoisting operation.

[0036] Crossbar 3 structure and adjustment method: The two support arms 2 are connected by a crossbar 3, which is used to adjust and fix the opening angle of the two support arms 2. The crossbar 3 is preferably a flat steel or tubular structure, with its two ends slidably connected to the middle of the two support arms 2 respectively.

[0037] In a preferred embodiment, the crossbar 3 is a flat steel structure with waist-shaped grooves at both ends. Corresponding through holes are provided on the support arm 2. The crossbar 3 is inserted into the grooves by set screws, and tightening achieves a locking connection with the support arm 2. By loosening the set screws, the relative position between the crossbar 3 and the support arm 2 can be adjusted within a certain range, thereby changing the angle between the two support arms 2 to accommodate the suspension point spacing of different models of refrigeration units.

[0038] To prevent loosening due to vibration or impact after locking, the set screw is equipped with a double nut structure to form an anti-loosening effect, ensuring that the position of the crossbar 3 and the support arm 2 is stable and reliable after adjustment.

[0039] Usage steps: 1) Prepare the lifting tool and lifting equipment. Connect the lifting tool to the lifting equipment (such as an electric hoist or overhead crane hook) via the lifting connection structure 1a (such as a lifting ring) at the top of the main support 1, so that the entire lifting tool is suspended and ready for use. Generally, to ensure overall lifting balance, one set of lifting tool is required at the front and rear of the refrigeration unit, for a total of two sets used in conjunction.

[0040] 2) Adjust the opening angle of the support arm 2. Based on the actual distance between the left and right lifting points of the refrigeration unit, loosen the set screw on the crossbar 3, adjust the connection position between the crossbar 3 and the two support arms 2, and adjust the opening angle of the two support arms 2 so that the distance between the working ends 2b of the two support arms 2 is consistent with the distance between the lifting points of the refrigeration unit.

[0041] 3) Position the lifting device and clamp the lifting points. Slowly lower the lifting device to the lifting point position of the refrigeration unit, so that the working ends 2b of the two support arms 2 are aligned with and close to the lifting lugs on the left and right sides of the same end of the refrigeration unit. Then, place the front and rear clamps of each support arm 2 on the front and rear sides of the lifting lugs respectively, and clamp them in place by inserting pins. Install limiting devices (such as nuts, snap rings or cotter pins) at both ends of the pins to prevent loosening.

[0042] 4) Repeat the installation of another set of lifting equipment. Install another set of lifting equipment with the same structure at the other end of the refrigeration unit using the same steps, so that one set of lifting equipment is connected to the front and one to the back of the unit, forming a symmetrical lifting support structure at the front and back points.

[0043] 5) Synchronous lifting. The lifting equipment starts working, simultaneously lifting the lifting points connected to the front and rear sets of lifting devices, driving the entire refrigeration unit to rise smoothly. Because the lifting device can adjust the opening and closing of the outrigger 2 according to the distance between the lifting points, and the clamping structure is reliable, the force is evenly distributed during the lifting process, which can effectively prevent safety risks such as uneven loading, overturning or slippage.

[0044] 6) Complete hoisting and positioning. After the refrigeration unit is hoisted to the target height, complete the necessary maintenance or replacement work, and then slowly lower the refrigeration unit according to the operating procedure, disassemble the lifting gear, and the entire operation process is completed.

[0045] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0046] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0047] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An adjustable refrigeration unit hoist, characterized in that, include: The main support (1) has a hoisting connection structure (1a) on its top for connecting the hoisting equipment. The left and right support arms (2) are respectively hinged to the two sides of the main support (1). Each support arm (2) has a connecting end (2a) at one end and a working end (2b) at the other end. The working end (2b) is used to connect with the hoisting structure of the refrigeration machine. A crossbar (3) is set between two support arms (2) to adjust and lock the opening angle between the two support arms (2). The two ends of the crossbar (3) are slidably connected to the two support arms (2) and fixed by a fastening structure. The working end (2b) of the support arm (2) includes a front clamping plate and a rear clamping plate arranged parallel to each other. A clamping space for accommodating the refrigeration machine hoisting structure is formed between the two clamping plates, and the clamping plates are connected to the refrigeration machine hoisting structure by a through pin.

2. The adjustable refrigeration unit hoist according to claim 1, characterized in that, The hoisting connection structure (1a) is a lifting ring or lifting lug set on the top of the main support (1).

3. The adjustable refrigeration unit hoist according to claim 1, characterized in that, The two support arms (2) are made of angle steel, square steel or steel bars.

4. The adjustable refrigeration unit hoist according to claim 3, characterized in that, When the support arm (2) is made of steel bars, the working end (2b) of the support arm (2) is formed into a flat head structure by stamping, and a through hole for inserting a pin is provided on it.

5. The adjustable refrigeration unit hoist according to claim 1, characterized in that, The crossbar (3) is a flat steel structure. A groove is provided in the middle of the crossbar (3). The groove is a waist-shaped hole. The fastening structure includes a set screw that passes through the groove.

6. The adjustable refrigeration unit hoist according to claim 1, characterized in that, The set screw is provided with an anti-loosening structure, which is a double nut.

7. The adjustable refrigeration unit hoist according to claim 1, characterized in that, The connection structure between the crossbar (3) and the support arm (2) is as follows: the two ends of the crossbar (3) are provided with sliding connection components, which can slide along the length direction of the support arm (2) and be locked by fasteners.

8. The adjustable refrigeration unit hoist according to claim 1, characterized in that, The two arms (2) open to form a compass-like structure when in use.

9. The adjustable refrigeration unit hoist according to claim 1, characterized in that, This lifting device is suitable for use in pairs at the front and rear ends of a refrigeration unit. The two sets of lifting devices are connected to the front and rear lifting points of the refrigeration unit respectively, and are used in conjunction with lifting equipment for synchronous lifting operations.

10. The adjustable refrigeration unit hoist according to claim 1, characterized in that, The pin passes through the refrigeration unit's lifting point and the front and rear clamps, and is limited and fixed by a locking component, which is a cotter pin, nut, or elastic snap ring.

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