Air conditioner refrigeration pipeline anti-vibration clamp

Abstract

The application discloses an anti-seismic pipe clamp for air conditioner refrigeration pipeline, and relates to the technical field of air conditioner refrigeration pipeline supporting structure, which comprises an outer shell, two elastic sliding members and two half-ring clamping members. The outer shell comprises an upper shell and a lower shell, and the inner sides of the upper shell and the lower shell are provided with axial sliding grooves. The guide parts of the elastic sliding members are slidingly matched in the axial sliding grooves. The half-ring clamping members are located on the inner sides of the elastic sliding members and surround to form clamping holes for accommodating the refrigerant pipes with thermal insulation layers. The positioning parts, radial limiting blocks and radial extrusion parts of the half-ring clamping members are matched with the accommodating parts, limiting accommodating parts and protrusions of the elastic sliding members respectively. The application can release the axial thermal displacement of the pipeline while clamping the refrigerant pipes with thermal insulation layers, and realizes radial vibration energy absorption through the abutting matching of the radial extrusion parts and the protrusions, thereby reducing the pipeline vibration transmission and the risk of damage to the thermal insulation layer.

Description

Technical Field

[0001] This invention relates to the field of air conditioning refrigeration pipe support structure technology, and in particular to an air conditioning refrigeration pipe anti-vibration clamp. Background Technology

[0002] Commercial air conditioning systems are widely used in commercial buildings, shopping malls, office buildings, and public buildings. In commercial air conditioning systems, refrigerant or cooling medium is transported through circular metal pipes. These pipes are covered with an insulation layer to reduce heat loss and condensation. During installation, the pipes are usually fixed to the building structure, machine room supports, or pipe rack supports using pipe clamps, hangers, or brackets.

[0003] Existing pipe clamps mostly use rigid clamps or clamping structures with rubber pads to fix the pipes. Such structures can provide basic support, but during the operation of commercial air conditioning pipes, the refrigerant pipes are affected by the vibration of the compressor, the impact of starting and stopping, and the axial expansion and contraction caused by temperature changes. If the pipe clamps tighten the pipes too much, it is easy to restrict the axial thermal displacement of the pipes and squeeze the outer insulation layer. If the pipe clamps are too loose, the pipes are prone to local movement, collision or displacement under vibration, thus affecting the stability of the pipe support and the integrity of the insulation layer.

[0004] Therefore, it is necessary to invent an anti-vibration pipe clamp for air conditioning refrigeration pipes to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-vibration pipe clamp for air conditioning refrigeration pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an anti-vibration pipe clamp for air conditioning refrigeration pipes, which is used to clamp refrigerant pipes with insulation layers, including an outer shell, two elastic sliding members and two semi-ring clamping members; The outer shell is located outside the two elastic sliding members, and the two semi-ring clamping members are located inside the two elastic sliding members and are arranged opposite each other along the circumference of the refrigerant pipe with insulation layer. The two semi-ring clamping members surround to form a clamping hole for accommodating the refrigerant pipe with insulation layer. The outer casing includes an upper shell located above the clamping hole and a lower shell located below the clamping hole. The inner sides of both the upper shell and the lower shell are provided with axial grooves extending along the pipeline axis. The two elastic sliding members are respectively sandwiched between the upper housing and one of the semi-ring clamping members, and between the lower housing and another semi-ring clamping member. The elastic sliding member has a guide portion on the side facing the outer housing, and the guide portion is slidably engaged in the axial groove. The elastic slider is provided with a receiving part, a buffer groove, a protrusion and a limiting receiving part on the side facing the semi-ring clamping member, and the protrusion is located in the buffer groove; The semi-ring clamping member has a positioning part, a radial limiting block and a radial extrusion part on the side opposite to the clamping hole. The positioning part is placed in the receiving part, the radial limiting block is placed in the limiting receiving part, and the radial extrusion part faces the buffer groove and abuts against the protrusion.

[0007] Preferably, both the upper housing and the lower housing are provided with mounting guide cavities on their inner sides. The mounting guide cavities are located on the inlet side of the corresponding axial groove, and the inner wall of the mounting guide cavity forms an arc-shaped guide surface opposite to the guide portion.

[0008] Preferably, the opening of the buffer groove faces the radial extrusion part, the protrusion protrudes from the bottom of the buffer groove, and the elastic sliding member has a pressure relief hole that connects the buffer groove and the outer side of the elastic sliding member.

[0009] Preferably, the two elastic sliding members are provided with connecting holes opposite each other in the fastening direction of the upper housing and the lower housing, and the first connecting pin passes through the two connecting holes along the fastening direction.

[0010] Preferably, it further includes a calibration component separately disposed from the lower housing. The calibration component has a calibration insertion part. An observation window is provided on the side wall of the lower housing. The observation window is located radially outside the first connecting pin. The calibration insertion part passes through the observation window and abuts against the first connecting pin.

[0011] Preferably, the elastic slider is provided with a sliding pad on the side facing the outer shell, the sliding pad is located between the elastic slider and the inner wall of the outer shell, the elastic slider is provided with a sliding pad positioning groove, and the sliding pad is provided with a sliding pad positioning rib inserted into the sliding pad positioning groove on the side facing the elastic slider.

[0012] Preferably, the circumferential end of the semi-ring clamping member is provided with a connecting ear, the connecting ear is located on the side of the semi-ring clamping member opposite to the clamping hole, and the connecting ears of the two semi-ring clamping members are inserted through a second connecting pin, and a closing limiting sleeve is sleeved on the second connecting pin.

[0013] Preferably, the two semi-ring clamping members are provided with guide blocks and guide slots at their opposite circumferential ends, with the guide blocks inserted into the guide slots.

[0014] Preferably, the upper housing is provided with a mounting base on the side away from the lower housing, and the mounting base is located above the clamping hole.

[0015] Preferably, the axial groove has opposing first and second end walls along the pipeline axial direction, and the guide portion is located between the first and second end walls.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention utilizes the cooperation of an outer shell, an elastic sliding member, and a semi-ring clamping member to circumferentially clamp the refrigerant pipe with insulation layer. The semi-ring clamping member then indirectly cooperates with the outer shell through the elastic sliding member. When the pipe is subjected to vibration or thermal expansion and contraction, the elastic sliding member can generate restricted sliding along the axial direction of the pipe within the outer shell, thereby releasing the axial thermal displacement of the refrigerant pipe, reducing the axial constraint of the refrigerant pipe on the traditional rigid pipe clamp, and reducing the squeezing damage to the insulation layer and pipe body caused by obstructed pipe expansion and contraction.

[0017] 2. This invention provides a buffer groove and a protrusion on the elastic sliding member, and makes the radial extrusion part on the semi-ring clamping member abut against the protrusion. When the refrigerant pipe is subjected to radial vibration due to compressor operation, building vibration or transient impact of the pipeline, the radial load can be transmitted to the protrusion and the elastic sliding member through the semi-ring clamping member. This causes the elastic sliding member to undergo controlled elastic deformation and absorb part of the vibration energy, thereby reducing the direct transmission of vibration to the outer shell and building installation foundation, and improving the seismic stability of commercial air conditioning refrigerant pipeline after installation.

[0018] 3. The present invention, through the cooperation of the positioning part and the receiving part, and the cooperation of the radial limiting block and the limiting receiving part, enables the semi-ring clamping part and the elastic sliding part to maintain stable positioning, and can form a structural limit when the radial vibration is too large, so as to avoid excessive displacement of the semi-ring clamping part relative to the elastic sliding part. Thus, while maintaining the shock absorption capacity, it limits the range of abnormal displacement and improves the reliability of the pipe clamp supporting the refrigerant pipe with insulation layer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the exploded structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the main structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the outer shell in this invention.

[0023] Figure 5 This is a schematic diagram of the assembly structure of the elastic sliding member and the semi-ring clamping member in this invention.

[0024] Figure 6 This is a front structural diagram of the elastic slider in this invention.

[0025] Figure 7 This is a schematic diagram of the bottom structure of the elastic slider in this invention.

[0026] Figure 8 This is a cross-sectional structural diagram of the present invention.

[0027] Figure 9 This is a schematic diagram of the disassembled structure of the semi-ring clamping component in this invention.

[0028] In the diagram: 1. Outer shell; 11. Upper shell; 12. Lower shell; 13. Axial groove; 14. Mounting guide cavity; 15. Observation window; 2. Elastic sliding member; 21. Guide part; 22. Receiving part; 23. Buffer groove; 231. Protrusion; 232. Pressure relief hole; 24. Limiting receiving part; 25. Connecting hole; 26. First connecting pin; 27. Sliding pad; 271. Sliding pad positioning groove; 272. Sliding pad positioning rib; 3. Semi-ring clamping member; 31. Positioning part; 32. Radial limiting block; 33. Radial extrusion part; 34. Connecting ear; 35. Second connecting pin; 36. Closing limiting sleeve; 37. Guide insert; 38. Guide slot; 4. Refrigerant pipe with insulation layer; 5. Calibration member; 51. Calibration insertion part. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. These embodiments are used to illustrate the structural composition, assembly relationship, material selection, processing method and usage process of the present invention, and are not intended to limit the scope of protection of the present invention.

[0031] like Figures 1 to 9 As shown, this embodiment provides an anti-vibration pipe clamp for air conditioning refrigeration pipes, which is used for supporting, clamping and damping the refrigerant pipe 4 with insulation layer in a commercial air conditioning system. In this embodiment, the refrigerant pipe 4 with insulation layer includes a copper refrigerant pipe and a rubber and plastic insulation layer covering the outside of the copper refrigerant pipe. The pipe axis refers to the length extension direction of the refrigerant pipe 4 with insulation layer, and the radial direction refers to the direction perpendicular to the axis of the refrigerant pipe 4 with insulation layer.

[0032] The anti-vibration pipe clamp for the air conditioning refrigeration pipe in this embodiment includes an outer shell 1, two elastic sliding members 2, two semi-ring clamping members 3, and a calibration member 5. The outer shell 1 is located on the outside of the overall structure. The two elastic sliding members 2 are respectively located between the outer shell 1 and the two semi-ring clamping members 3. The two semi-ring clamping members 3 are fastened to each other along the circumference of the refrigerant pipe 4 with insulation layer, and form a clamping hole for accommodating the refrigerant pipe 4 with insulation layer.

[0033] The outer shell 1 includes an upper shell 11 and a lower shell 12. The upper shell 11 is located on the upper side of the refrigerant pipe 4 with insulation layer, and the lower shell 12 is located on the lower side of the refrigerant pipe 4 with insulation layer. The upper shell 11 and the lower shell 12 together form an external support space for accommodating the elastic sliding member 2 and the semi-ring clamping member 3.

[0034] The upper housing 11 is provided with a mounting base on the side away from the lower housing 12. The mounting base is used to connect with the building structure, the hanger, the channel steel bracket or the air conditioning pipe bracket. The mounting base is provided with round holes, oblong holes or waist-shaped holes for adjusting the bolt installation position during on-site hoisting.

[0035] In this embodiment, the outer shell 1 is made of one of galvanized steel plate, stainless steel plate, or aluminum alloy plate. As a specific implementation, the outer shell 1 is formed by processing galvanized steel plate with a thickness of 1.5mm to 3mm. The processing methods of the upper shell 11 and the lower shell 12 include stamping blanking, laser cutting, bending forming, local pressing and deburring treatment. The mounting base is integrally bent with the upper shell 11, or is set on the upper shell 11 by welding, riveting, or bolt fixing.

[0036] Both the upper housing 11 and the lower housing 12 are provided with axial sliding grooves 13 on their inner sides. The axial sliding grooves 13 extend along the pipeline axial direction. After the guide part 21 on the elastic sliding member 2 is inserted into the axial sliding groove 13, the elastic sliding member 2 can slide bidirectionally relative to the outer housing 1 along the pipeline axial direction.

[0037] The axial groove 13 can be processed by stamping, milling, grooving or die forming. The groove edge of the axial groove 13 is chamfered or rounded to reduce the scraping of the guide part 21 when it slides. In this embodiment, the effective length of the axial groove 13 is greater than the axial length of the guide part 21, so that the guide part 21 has a limited sliding space in the axial groove 13.

[0038] As a dimension setting in this embodiment, the effective length of the axial groove 13 is 4mm to 12mm longer than the axial length of the guide portion 21. This corresponds to a total bidirectional sliding stroke of the elastic slider 2 relative to the outer shell 1 of 4mm to 12mm and a unidirectional sliding stroke of 2mm to 6mm. The above dimensions are used to limit the fitting clearance and sliding stroke between the guide portion 21 and the axial groove 13 in this embodiment.

[0039] The upper housing 11 and the lower housing 12 are both provided with mounting guide cavities 14 on their inner sides. The mounting guide cavities 14 are located on the inlet side of the corresponding axial slide groove 13. The mounting guide cavities 14 are arc-shaped structures, and their inner walls form arc-shaped guide surfaces. When the elastic sliding member 2 is pre-installed with the upper housing 11 or the lower housing 12, the guide part 21 can undergo controlled deformation along the mounting guide cavity 14 and enter the axial slide groove 13.

[0040] The processing methods for mounting guide cavity 14 include stamping, milling, bending or die forming. The arc-shaped guide surface of mounting guide cavity 14 is deburred and rounded to reduce the risk of the elastic sliding part 2 being cut by sharp edges during assembly deformation.

[0041] The lower housing 12 is provided with an observation window 15, which is located on the side wall of the lower housing 12 and on the radial outer side of the first connecting pin 26. The observation window 15 is used for the temporary insertion of the calibration insertion part 51 of the calibration part 5, so that the installer can push the first connecting pin 26 through the calibration part 5 during installation or maintenance, thereby calibrating the axial position of the elastic sliding part 2 and the semi-ring clamping part 3 relative to the outer housing 1.

[0042] The observation window 15 is processed by punching, laser cutting or milling. The edges of the observation window 15 are chamfered to reduce jamming or scratches during the insertion and withdrawal of the calibration insertion part 51.

[0043] In this embodiment, the elastic slider 2 is a hard rubber component. The key protection features of the elastic slider 2 are its shape, groove, protrusion, guide, and limiting fit. The material is only used for illustrative purposes. The material of the elastic slider 2 is selected from one of the following: hard rubber, EPDM rubber, nitrile rubber, and polyurethane elastomer.

[0044] As one specific implementation, the elastic sliding member 2 is made of hard rubber with a Shore A hardness of 75 to 90 through compression molding and vulcanization, so that the elastic sliding member 2 has the rigidity to support the semi-ring clamping member 3 and the refrigerant pipe 4 with insulation layer, and generates controlled elastic deformation when subjected to radial vibration impact.

[0045] The processing methods of the elastic sliding part 2 include compression molding, injection molding or injection molding. The guide part 21, the receiving part 22, the buffer groove 23, the protrusion 231, the pressure relief hole 232, the limiting receiving part 24, the connecting hole 25 and the sliding pad positioning groove 271 are formed in one step in the mold, or are processed in a secondary manner after forming by trimming, drilling, punching or fine finishing.

[0046] The guide portion 21 is provided on the side of the elastic slider 2 facing the outer shell 1. The guide portion 21 extends axially along the pipeline and slides in cooperation with the axial groove 13. The outer surface of the guide portion 21 is provided with a rounded corner transition or a chamfer transition so that it can enter the axial groove 13 along the mounting guide cavity 14 during assembly.

[0047] The receiving part 22 is provided on the side of the elastic slider 2 facing the semi-ring clamp 3. The receiving part 22 is used to receive the positioning part 31 on the semi-ring clamp 3, so that the semi-ring clamp 3 has a defined assembly position in the elastic slider 2.

[0048] The buffer groove 23 is located on the side of the elastic sliding member 2 facing the semi-ring clamping member 3. The buffer groove 23 is a groove-shaped structure, and its opening faces the radial extrusion part 33 on the semi-ring clamping member 3. The protrusion 231 is located in the buffer groove 23 and directly abuts against the radial extrusion part 33 under normal conditions.

[0049] The protrusion 231 and the elastic sliding member 2 are integrally formed. The protrusion 231 is configured as a strip-shaped protrusion, a block-shaped protrusion or an arc-shaped protrusion. In this embodiment, the protrusion 231 is a strip-shaped protrusion extending along the pipeline axis, so that the radial extrusion part 33 extrudes the protrusion 231 along the predetermined contact area when vibration is transmitted.

[0050] The pressure relief hole 232 is opened on the elastic sliding member 2 and connects the buffer groove 23 and the outer side of the elastic sliding member 2. The pressure relief hole 232 is used to prevent the buffer groove 23 from forming a closed internal pressure when it is radially compressed, so that the rubber material near the protrusion 231 and the buffer groove 23 can be deformed smoothly.

[0051] The pressure relief hole 232 is formed in one step by a mold core pin, or by drilling or punching after the elastic sliding part 2 is formed. The edge of the pressure relief hole 232 is rounded to reduce the risk of tearing when the rubber part is repeatedly deformed.

[0052] The limiting and receiving part 24 is provided on the side of the elastic sliding member 2 facing the semi-ring clamping member 3. The limiting and receiving part 24 is used to receive the radial limiting block 32 on the semi-ring clamping member 3. When the semi-ring clamping member 3 has a radial displacement tendency relative to the elastic sliding member 2 that exceeds a predetermined range, the radial limiting block 32 can form a limiting engagement with the inner wall of the limiting and receiving part 24.

[0053] The connecting hole 25 is provided on the elastic sliding member 2. The two elastic sliding members 2 are arranged opposite to each other in the snapping direction of the upper housing 11 and the lower housing 12. The first connecting pin 26 passes through the connecting hole 25 of the two elastic sliding members 2, so that the two elastic sliding members 2 form a connection relationship.

[0054] In this embodiment, the first connecting pin 26 is made of galvanized steel, stainless steel or carbon steel with anti-corrosion treatment. The processing methods of the first connecting pin 26 include cold heading, turning or stamping and rolling. The end of the first connecting pin 26 is chamfered so as to pass through the connecting hole 25 and reduce scratches on the elastic sliding member 2.

[0055] The first connecting pin 26 serves both as a connection and a calibration force-bearing element. In the installation or maintenance state, the calibration insertion part 51 of the calibration component 5 extends into the lower housing 12 through the observation window 15 and abuts against the first connecting pin 26. By pushing the first connecting pin 26, the two elastic sliding parts 2 and the two semi-ring clamping parts 3 move within the range allowed by the axial sliding groove 13, thereby adjusting the clamping center position of the refrigerant pipe 4 with the heat insulation layer to the predetermined center area of ​​the outer housing 1.

[0056] A sliding pad 27 is provided on the side of the elastic sliding member 2 facing the outer shell 1. The sliding pad 27 is located between the elastic sliding member 2 and the inner wall of the outer shell 1. The sliding pad 27 is used to reduce the frictional resistance when the elastic sliding member 2 slides along the axial sliding groove 13 and to reduce the direct wear between the rubber material and the metal outer shell 1.

[0057] In this embodiment, the sliding pad 27 is made of one of polyoxymethylene, nylon, polytetrafluoroethylene, or ultra-high molecular weight polyethylene. The processing methods of the sliding pad 27 include injection molding, sheet punching, milling, or extrusion cutting.

[0058] The elastic sliding member 2 has a sliding pad positioning groove 271, and the sliding pad 27 is provided with a sliding pad positioning rib 272. The sliding pad positioning rib 272 is inserted into the sliding pad positioning groove 271, so that the sliding pad 27 is installed in the bottom or outer contact area of ​​the elastic sliding member 2, preventing the sliding pad 27 from detaching from the elastic sliding member 2 during the axial sliding of the pipeline.

[0059] The semi-ring clamp 3 is configured as two interlocking semi-ring structures. The two semi-ring clamps 3 are arranged opposite each other along the circumference of the refrigerant pipe 4 with insulation layer, and form a circular clamping hole after being interlocked. The inner wall of the clamping hole is in contact with the insulation layer on the outside of the refrigerant pipe 4 with insulation layer.

[0060] In this embodiment, the semi-ring clamping component 3 is made of engineering plastic, and the material is selected from nylon, reinforced nylon, polyoxymethylene or polypropylene. As a specific embodiment, the semi-ring clamping component 3 is injection molded from nylon material, and a rounded corner transition is provided at the inner wall arc to reduce local indentation on the insulation layer.

[0061] The positioning part 31, radial limiting block 32, radial extrusion part 33, connecting ear 34, guide insert 37 and guide slot 38 on the semi-ring clamping part 3 are integrally injection molded with the semi-ring clamping part 3. The hole on the connecting ear 34 is formed by the mold core during injection molding, or formed by drilling, reaming or repairing after molding.

[0062] The positioning part 31 is provided on the side of the semi-ring clamping member 3 facing away from the clamping hole and is placed in the receiving part 22 of the elastic sliding member 2. The positioning part 31 is used to limit the assembly position of the semi-ring clamping member 3 relative to the elastic sliding member 2, so that the semi-ring clamping member 3 maintains a predetermined circumferential position when clamping the refrigerant pipe 4 with insulation layer.

[0063] The radial limiting block 32 is disposed on the side of the semi-ring clamping member 3 facing away from the clamping hole and is placed inside the limiting receiving part 24 of the elastic sliding member 2. A radial movement gap is maintained between the radial limiting block 32 and the limiting receiving part 24. Within the predetermined radial vibration range, the semi-ring clamping member 3 achieves shock absorption through the deformation of the elastic sliding member 2. When the radial displacement exceeds the predetermined range, the radial limiting block 32 and the limiting receiving part 24 form a mechanical limit.

[0064] The radial extrusion part 33 is located on the side of the semi-ring clamping member 3 facing away from the clamping hole and towards the buffer groove 23 of the elastic sliding member 2. Under normal conditions, the radial extrusion part 33 directly abuts against the protrusion 231. When the refrigerant pipe 4 with insulation layer is subjected to radial vibration, the vibration force is transmitted to the radial extrusion part 33 through the semi-ring clamping member 3, and the radial extrusion part 33 extrudes the protrusion 231, causing the elastic sliding member 2 to undergo elastic deformation near the buffer groove 23.

[0065] Connecting ears 34 are located at the circumferential ends of the semi-ring clamping parts 3. The connecting ears 34 of the two semi-ring clamping parts 3 correspond to each other and are inserted through the second connecting pin 35. The second connecting pin 35 is fitted with a closing limiting sleeve 36 so that the two semi-ring clamping parts 3 remain in a snap-fit ​​state after being closed on the outside of the refrigerant pipe 4 with insulation layer.

[0066] The second connecting pin 35 is made of stainless steel, galvanized steel or engineering plastic, and the closing limiting sleeve 36 is made of nylon, polyoxymethylene, stainless steel elastic sleeve or galvanized steel sleeve. The processing methods of the second connecting pin 35 include cold heading, turning or injection molding, and the processing methods of the closing limiting sleeve 36 include injection molding, turning or stamping and rolling.

[0067] The two semi-ring clamping parts 3 are respectively provided with guide blocks 37 and guide slots 38 at their opposite circumferential ends. The guide blocks 37 are inserted into the guide slots 38 so that the two semi-ring clamping parts 3 first complete circumferential and radial alignment during the fastening process, and then complete the closing limit through the connecting ear 34, the second connecting pin 35 and the closing limit sleeve 36.

[0068] The calibration component 5 is a temporary tool that is separately set from the lower housing 12. The calibration component 5 includes a calibration insertion part 51, which can extend into the lower housing 12 through the observation window 15 and press the first connecting pin 26. After the installation calibration or maintenance calibration is completed, the calibration component 5 is withdrawn from the observation window 15.

[0069] In this embodiment, the calibration component 5 is made of stainless steel plate, galvanized steel plate, aluminum alloy plate or hard engineering plastic. The processing methods of the calibration component 5 include stamping, laser cutting, bending, injection molding or machining. The front end of the calibration insertion part 51 is set with a rounded or chamfered structure to reduce the scratches on the first connecting pin 26, elastic sliding part 2 or lower housing 12 when inserting into the observation window 15.

[0070] During the assembly process, firstly, two semi-ring clamping parts 3 are placed on the outside of the refrigerant pipe 4 with insulation layer, so that the guide block 37 is inserted into the guide slot 38, and the connecting ears 34 of the two semi-ring clamping parts 3 are aligned with each other. Then, the second connecting pin 35 is inserted into the connecting ear 34 and the closing limiting sleeve 36 is put on, so that the two semi-ring clamping parts 3 surround to form a clamping hole for clamping the refrigerant pipe 4 with insulation layer.

[0071] After the assembly of the semi-ring clamping member 3 and the refrigerant pipe 4 with insulation layer is completed, one elastic sliding member 2 is pre-installed inside the upper housing 11 and another elastic sliding member 2 is pre-installed inside the lower housing 12. During pre-installation, the guide part 21 of the elastic sliding member 2 is deformed by pressure along the installation guide cavity 14 and enters the axial sliding groove 13. Since the elastic sliding member 2 has not yet cooperated with the semi-ring clamping member 3 at this time, the elastic sliding member 2 has a deformation space for the guide part 21 to enter the axial sliding groove 13.

[0072] Then, the upper housing 11 and lower housing 12, which have been pre-installed with the elastic sliding member 2, are moved to the outside of the two semi-ring clamping members 3, so that the positioning part 31 of the semi-ring clamping member 3 enters the receiving part 22 of the elastic sliding member 2, so that the radial limiting block 32 enters the limiting receiving part 24, and so that the radial pressing part 33 abuts against the protrusion 231 in the buffer groove 23.

[0073] After the elastic slider 2 and the semi-ring clamping member 3 are in place, the first connecting pin 26 is inserted into the connecting hole 25 of the two elastic sliders 2 that are arranged opposite to each other, so that the upper and lower elastic sliders 2 are connected, and the two elastic sliders 2 and the two semi-ring clamping members 3 are kept in an overall fit state within the outer shell 1.

[0074] During the installation and calibration process, the calibration insertion part 51 of the calibration part 5 is inserted into the observation window 15 of the lower housing 12, so that the calibration insertion part 51 abuts against the first connecting pin 26. By pushing the first connecting pin 26, the elastic sliding part 2 and the semi-ring clamping part 3 are moved along the axial sliding groove 13 until the clamping center of the refrigerant pipe 4 with the heat insulation layer is in the predetermined center area of ​​the outer housing 1. After the calibration is completed, the calibration part 5 is removed from the observation window 15.

[0075] During use, when the refrigerant pipe 4 with insulation layer undergoes axial thermal displacement due to temperature changes, the two semi-ring clamps 3 move axially along with the refrigerant pipe 4 with insulation layer. The displacement is then transmitted to the guide part 21 through the positioning part 31, the receiving part 22, and the elastic sliding part 2. The guide part 21 slides along the axial groove 13 in a restricted manner, thereby releasing the axial thermal displacement of the pipeline.

[0076] When the insulated refrigerant pipe 4 is subjected to radial vibration due to compressor operation, refrigerant flow impact, building vibration or external disturbance, the insulated refrigerant pipe 4 transmits the radial load to the semi-ring clamp 3. The semi-ring clamp 3 squeezes the protrusion 231 through the radial extrusion part 33, causing the elastic sliding part 2 to undergo elastic deformation near the buffer groove 23, and absorbs part of the vibration energy through the deformation of the elastic material.

[0077] When the radial vibration displacement exceeds the predetermined damping stroke, the radial limiting block 32 gradually approaches the inner wall of the limiting receiving part 24 and forms a mechanical limit, restricting the semi-ring clamping member 3 from continuing to generate radial displacement relative to the elastic sliding member 2, thereby restricting the refrigerant pipe 4 with insulation layer from swinging beyond the predetermined stroke in the pipe clamp.

[0078] When the rubber material near the buffer groove 23 is subjected to radial compression and deforms, the pressure relief hole 232 connects the buffer groove 23 with the outside world, preventing the formation of closed air pressure inside the buffer groove 23, thereby improving the smoothness of deformation of the protrusion 231 and the buffer groove 23 area, and reducing the risk of fatigue damage during repeated compression.

[0079] During maintenance, maintenance personnel can re-insert the calibration insertion part 51 of the calibration part 5 into the observation window 15 and abut against the first connecting pin 26. The axial position of the elastic sliding part 2 and the semi-ring clamping part 3 can be judged or adjusted by the first connecting pin 26 to avoid the clamping structure deviating from the predetermined working area between the two end walls of the axial slide groove 13 due to the accumulation of displacement after operation.

[0080] In summary, this embodiment provides external support through the metal outer shell 1, forms axial sliding and radial vibration reduction through the rigid rubber elastic sliding member 2, circumferentially clamps the refrigerant pipe 4 with insulation layer through the engineering plastic semi-ring clamp 3, and completes connection, installation, maintenance and calibration through the first connecting pin 26 and the calibration member 5. This allows the air conditioning refrigeration pipeline anti-vibration clamp to release the axial thermal displacement of the pipeline and absorb radial vibration while protecting the insulation layer.

[0081] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shock-resistant pipe clamp for air conditioning refrigeration pipes, used to clamp refrigerant pipes (4) with insulation layer, characterized in that, It includes an outer shell (1), two elastic sliding parts (2) and two semi-ring clamping parts (3); The outer shell (1) is located outside the two elastic sliding members (2), and the two semi-ring clamping members (3) are located inside the two elastic sliding members (2) and are arranged opposite to each other along the circumference of the refrigerant pipe (4) with insulation layer. The two semi-ring clamping members (3) enclose to form a clamping hole for accommodating the refrigerant pipe (4) with insulation layer. The outer shell (1) includes an upper shell (11) located above the clamping hole and a lower shell (12) located below the clamping hole. The inner sides of the upper shell (11) and the lower shell (12) are provided with axial grooves (13) extending along the pipeline axis. Two elastic sliding members (2) are respectively sandwiched between the upper housing (11) and one of the semi-ring clamping members (3), and between the lower housing (12) and another of the semi-ring clamping members (3). The elastic sliding member (2) has a guide portion (21) on the side facing the outer shell (1), and the guide portion (21) is slidably engaged in the axial groove (13). The elastic sliding member (2) is provided with a receiving part (22), a buffer groove (23), a protrusion (231) and a limiting receiving part (24) on the side facing the semi-ring clamping member (3), and the protrusion (231) is located in the buffer groove (23); The semi-ring clamping member (3) is provided with a positioning part (31), a radial limiting block (32) and a radial pressing part (33) on the side opposite to the clamping hole. The positioning part (31) is placed in the receiving part (22), the radial limiting block (32) is placed in the limiting receiving part (24), and the radial pressing part (33) faces the buffer groove (23) and abuts against the protrusion (231).

2. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 1, characterized in that: The upper housing (11) and the lower housing (12) are provided with mounting guide cavities (14) on their inner sides. The mounting guide cavity (14) is located on the inlet side of the corresponding axial groove (13). The inner wall of the mounting guide cavity (14) forms an arc-shaped guide surface opposite to the guide part (21).

3. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 1, characterized in that: The opening of the buffer groove (23) faces the radial extrusion part (33), the protrusion (231) protrudes from the bottom of the buffer groove (23), and the elastic sliding member (2) is provided with a pressure relief hole (232), which connects the buffer groove (23) and the outer side of the elastic sliding member (2).

4. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 1, characterized in that: The two elastic sliding members (2) are provided with connecting holes (25) opposite to each other in the fastening direction of the upper housing (11) and the lower housing (12), and the first connecting pin (26) passes through the two connecting holes (25) along the fastening direction.

5. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 4, characterized in that: It also includes a calibration component (5) that is separately disposed from the lower housing (12). The calibration component (5) has a calibration insertion part (51). The side wall of the lower housing (12) is provided with an observation window (15). The observation window (15) is located radially outside the first connecting pin (26). The calibration insertion part (51) passes through the observation window (15) and abuts against the first connecting pin (26).

6. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 1, characterized in that: The elastic slider (2) has a sliding pad (27) on the side facing the outer shell (1). The sliding pad (27) is located between the elastic slider (2) and the inner wall of the outer shell (1). A sliding pad positioning groove (271) is formed on the elastic slider (2). A sliding pad positioning rib (272) that is inserted into the sliding pad positioning groove (271) is provided on the side facing the elastic slider (2).

7. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 1, characterized in that: The circumferential end of the semi-ring clamp (3) is provided with a connecting ear (34). The connecting ear (34) is located on the side of the semi-ring clamp (3) facing away from the clamping hole. The connecting ears (34) of the two semi-ring clamps (3) are connected by a second connecting pin (35). A closing limiting sleeve (36) is sleeved on the second connecting pin (35).

8. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 7, characterized in that: The two semi-ring clamps (3) are respectively provided with guide blocks (37) and guide slots (38) at their opposite circumferential ends, and the guide blocks (37) are inserted into the guide slots (38).

9. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 1, characterized in that: The upper housing (11) has a mounting base on the side away from the lower housing (12), and the mounting base is located above the clamping hole.

10. The anti-vibration pipe clamp for air conditioning refrigeration pipes according to claim 1, characterized in that: The axial groove (13) has a first end wall and a second end wall opposite each other along the pipeline axis, and the guide part (21) is located between the first end wall and the second end wall.

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