Valve plate assembly assembly tool and use method

Abstract

The present invention relates to the technical field of compressors, and in particular to a valve plate assembly assembly tool and a method of use, comprising: a base plate, a base, a replacement seat and a clamping assembly; an assembly surface and a locating pin are provided on the replacement seat, and the axis of the locating pin is provided perpendicular to the assembly surface; the clamping assembly comprises a support, a bracket, a limit block, a perforated pin and a tension spring, the support is fixed on the axial side surface of the base, one end of the bracket is rotatably connected to the support, the limit block is fixed to the other end of the bracket and is arranged opposite to the assembly surface, the perforated pin passes through the bracket, and the two ends of the tension spring are respectively fixedly connected to the perforated pin and the base plate; by arranging the assembly surface and the locating pin on the replacement seat, the valve plate assembly is supported and limited, and the bolts or valve body are arranged on the replacement seat, which is convenient for workers to perform tightening action, and by rotating the bracket and under the pulling force of the tension spring, the limit block can continuously press the valve plate assembly, effectively preventing relative rotation between the various components, and ensuring assembly effect and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a valve plate assembly tool and a use method thereof. Background Art

[0002] The valve plate assembly of the compressor is one of the important components of the compressor, such as Figure 1 and Figure 2 As shown, it usually includes an exhaust limit plate, an exhaust valve plate, a valve plate and an intake valve plate arranged in sequence. During assembly, the above components are usually stacked in sequence and tightened with bolts and nuts, or tightened on the valve body with nuts.

[0003] During the tightening process, manual tightening is mostly adopted. Since a certain assembly angle needs to be maintained between the exhaust limit plate, exhaust valve plate, valve plate and intake valve plate, relative twisting will occur between the various components as the tightening action progresses, making it difficult to achieve the expected assembly effect. In addition, the handheld tightening action brings inconvenience to the operation, resulting in low assembly efficiency.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a valve plate assembly assembly tool and a use method to effectively solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a valve plate assembly assembly tool, comprising: a bottom plate, a base, a replacement seat and a pressing component;

[0007] The base is fixed on the bottom plate, the replacement seat is detachably connected to the base, and the pressing assembly is fixed on one side of the base;

[0008] The replacement seat is provided with an assembly surface and a positioning pin, and the axis of the positioning pin is arranged perpendicular to the assembly surface;

[0009] The clamping assembly includes a support, a bracket, a limit block, a perforated pin and a tension spring. The support is fixed on the axial side of the base, one end of the bracket is rotatably connected to the support, the limit block is fixed to the other end of the bracket and is arranged opposite to the assembly surface, the perforated pin passes through the bracket, and the two ends of the tension spring are fixedly connected to the perforated pin and the base plate respectively.

[0010] Furthermore, a transfer groove is provided on the side of the support facing the bracket, and the bracket includes a rotating arm and a support arm arranged perpendicular to each other, one end of the support arm extends into the transfer groove and is connected to the support through a rotating pin, the perforated pin is located at the other end of the support arm, and the limit block is provided at the end of the rotating arm away from the rotating arm.

[0011] Furthermore, one end of the support arm extending into the adapter groove forms an arc angle, one end of the adapter groove forms a guide slope, and the arc angle is arranged opposite to the guide slope.

[0012] Furthermore, the rotating arm forms an opening on one side toward the limit block, and the limit block forms a protrusion on one side toward the rotating arm, and the protrusion cooperates with the opening; the rotating arm is provided with a shift groove, and the limit block is connected to a moving head, and the end of the moving head extends into the shift groove to connect the rotating arm and the limit block.

[0013] Furthermore, two tension springs are provided, and two fixing openings are correspondingly provided on the bottom plate, respectively located on both sides of the support, and the two ends of the tension spring are respectively connected to the end of the perforated pin and the fixing opening.

[0014] Furthermore, the base is provided with a replacement cavity on one end away from the bottom plate, and two positioning heads are provided on the end surface. The end of the replacement seat opposite to the base is retracted and extends into the replacement cavity, and a positioning groove is formed on the contact surface with the end surface of the base, and the positioning head extends into the positioning groove.

[0015] A card slot is provided on the side wall of the base, and an abutment slot is provided on the side surface of the shaft of one end of the replacement seat extending into the replacement cavity. A card pin passes through the card slot and extends into the replacement cavity and connects with the abutment slot.

[0016] Furthermore, the replacement seat includes a first main body and two pins. A first cavity for accommodating the valve body is provided at one end of the first main body along the axial direction. Two insertion holes are respectively provided on both sides of the first main body. The two pins pass through the insertion holes on both sides, extend into the first cavity, and abut against the two side walls of the valve body.

[0017] Furthermore, the replacement seat includes a second main body, a fixed seat and a fixed head, and a second cavity for accommodating the fixed seat is provided at one end of the second main body, and the end face of the fixed head is adapted to the end face of the bolt; the fixed seat is locally recessed along the axis on one side toward the limit block to form a fixed groove, and the fixed head is arranged in the fixed groove, and the second main body, the fixed seat and the fixed head are coaxially arranged.

[0018] Furthermore, a through hole and a positioning hole are provided on the fixing seat, and a fixing hole is provided on the fixing head. The positioning hole is coaxial with the fixing seat, and the axes of the through hole and the fixing hole are perpendicular to the axis of the positioning hole. One end of the fixing head passes through the positioning hole, and the other end is restricted in the fixing groove. A through pin passes through the through hole and the fixing hole in sequence to connect the fixing seat and the fixing head.

[0019] The present invention also provides a method for using the valve plate assembly tool as described above, comprising the following steps:

[0020] Select a suitable replacement seat and assemble it on the base, then place the corresponding bolts or valve body on the replacement seat;

[0021] Attach the intake valve disc, valve plate, exhaust valve disc and exhaust limit plate to the bolts or valve body in sequence and place them on the assembly surface. The positioning pins pass through the limit holes on the intake valve disc and valve plate in sequence and are clamped between the blades of the exhaust valve disc and the exhaust limit plate.

[0022] The bracket is moved so that the bracket rotates relative to the support, the tension spring contracts from the extended state, and the limit block moves closer to the exhaust limit plate;

[0023] When the limit block rotates to rest on the exhaust limit plate, the tension spring extends again, and the limit block presses the intake valve plate, valve plate, exhaust valve plate and exhaust limit plate onto the assembly surface;

[0024] Screw the nut onto the bolt or valve body and tighten it to form the valve plate assembly;

[0025] Turn the bracket in the opposite direction to remove the valve plate assembly from the replacement seat.

[0026] The beneficial effects of the present invention are as follows: the present invention supports and limits the valve plate assembly by arranging an assembly surface and a positioning pin on the replacement seat, and the bolts or valve body are arranged on the replacement seat, which is convenient for workers to perform the tightening action, and through the action of the rotating bracket and the tension of the tension spring, the limit block can continuously press the valve plate assembly, effectively preventing relative rotation between the various components during tightening, thereby ensuring the assembly effect and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a schematic diagram of the assembly of the valve plate assembly in the background technology;

[0029] Figure 2 It is an assembly diagram of another valve plate assembly in the background art;

[0030] Figure 3 Schematic diagram of the structure of the valve plate assembly assembly tool in an embodiment of the present invention;

[0031] Figure 4 This is a schematic structural diagram of another valve plate assembly tooling according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic structural diagram of a compression assembly in an embodiment of the present invention;

[0033] Figure 6 Schematic diagram of the assembly of the bracket and the limit block in an embodiment of the present invention;

[0034] Figure 7 This is a schematic structural diagram of a replacement seat in an embodiment of the present invention;

[0035] Figure 8 This is a schematic structural diagram of another form of replacement seat in an embodiment of the present invention;

[0036] Figure 9 A top view of another form of replacement seat in an embodiment of the present invention;

[0037] Figure 10 for Figure 9 Cross-sectional view at AA in the middle;

[0038] Figure 11 for Figure 9 Cross-sectional view at the middle BB;

[0039] Figure 12 A top view of a valve plate assembly assembly tool in an embodiment of the present invention;

[0040] Figure 13 In the compressed state Figure 12 Cross-sectional view at CC;

[0041] Figure 14 In open state Figure 12 Cross-sectional view at CC;

[0042] Figure 15 for Figure 12 Cross-sectional view at DD in the middle;

[0043] Figure 16 for Figure 12 Cross-sectional view at EE.

[0044] Reference numerals: 1, exhaust limit plate; 2, exhaust valve disc; 3, valve plate; 4, intake valve disc; 5, bolt; 6, nut; 7, valve body; 10, bottom plate; 10a, fixing port; 20, base; 20a, replacement cavity; 20b, positioning head; 20c, slot; 20d, bayonet; 30, replacement seat; 30a, assembly surface; 30b, positioning pin; 30c, positioning slot; 30d, abutment slot; 311, first body; 311a, first cavity; 311b, insertion hole; 312, latch; 321, second body; 321a, Second cavity; 322, fixing seat; 322a, fixing groove; 322b, through hole; 322c, positioning hole; 323, fixing head; 323a, fixing hole; 324, through pin; 40, clamping assembly; 41, support; 411, adapter groove; 411a, guide slope; 42, bracket; 421, rotating arm; 421a, opening; 421b, shifting groove; 422, support arm; 422a, arc angle; 43, limit block; 431, protrusion; 432, moving head; 44, through pin; 45, tension spring; 46, rotating pin. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0048] like Figures 1 to 16 The valve plate assembly assembly tool shown includes: a base plate 10, a base 20, a replacement seat 30 and a pressing assembly 40;

[0049] The base 20 is fixed on the bottom plate 10, the replacement seat 30 is detachably connected to the base 20, and the pressing assembly 40 is fixed on one side of the base 20;

[0050] The replacement seat 30 is provided with an assembly surface 30a and a positioning pin 30b, and the axis of the positioning pin 30b is arranged perpendicular to the assembly surface 30a;

[0051] The clamping assembly 40 includes a support 41, a bracket 42, a limit block 43, a perforated pin 44 and a tension spring 45. The support 41 is fixed on the axial side of the base 20, one end of the bracket 42 is rotatably connected to the support 41, the limit block 43 is fixed to the other end of the bracket 42, and is arranged opposite to the assembly surface 30a. The perforated pin 44 passes through the bracket 42, and the two ends of the tension spring 45 are fixedly connected to the perforated pin 44 and the base plate 10 respectively.

[0052] The present invention supports and limits the valve plate 3 assembly by providing an assembly surface 30a and a positioning pin 30b on the replacement seat 30. The bolt 5 or the valve body 7 is provided on the replacement seat 30, which is convenient for workers to perform the tightening action. Moreover, under the action of the rotating bracket 42 and the tension of the tension spring 45, the limit block 43 can continuously press the valve plate 3 assembly, effectively preventing relative rotation between the various components during tightening, thereby ensuring the assembly effect and efficiency.

[0053] Before work, since the nut 6 can be tightened on the valve body 7 or the bolt 5, it is necessary to select a suitable replacement seat 30 to assemble it on the base 20, and place the corresponding bolt 5 or valve body 7 on the replacement seat 30, and the threaded portion of the bolt 5 or valve body 7 extends out of the plane where the assembly surface 30a is located. At this time, the intake valve disc 4, valve plate 3, exhaust valve disc 2 and exhaust limit plate 1 are sequentially sleeved on the threaded portion of the bolt 5 or valve body 7 and placed on the assembly surface 30a. According to the assembly relationship, the locating pin 30b on the replacement seat 30 will pass through the limiting holes on the intake valve disc 4 and the valve plate 3, and be clamped between the blades of the exhaust valve disc 2 and the exhaust limit plate 1 to ensure the assembly angle between the various components; in order to prevent the various components from falling off from the bolt 5 or valve body 7 during subsequent tightening, Before tightening, move the bracket 42 to make the bracket 42 rotate relative to the support 41, driving the tension spring 45 to rotate and contract from the extended state, so that the limit block 43 approaches the exhaust limit plate 1. When the limit block 43 rotates to rest on the exhaust limit plate 1, the tension spring 45 rotates and extends again, and the limit block 43 presses the intake valve plate 4, valve plate 3, exhaust valve plate 2 and exhaust limit plate 1 on the assembly surface 30a, thereby forming a fixing effect to ensure the accuracy of the relative positions of the various components. At this time, the nut 6 is screwed onto the bolt 5 or the valve body 7 and tightened to form the valve plate 3 assembly. At this time, the bracket 42 is rotated in the opposite direction, the limit block 43 is separated from the exhaust limit plate 1, the pressing force is removed, and the valve plate 3 assembly can be removed from the replacement seat 30.

[0054] In order to facilitate the replacement of the replacement seat 30, a replacement cavity 20a is provided at the end of the base 20 away from the bottom plate 10, and two positioning heads 20b are provided on the end surface. The end of the replacement seat 30 opposite to the base 20 is retracted and extends into the replacement cavity 20a, and a positioning groove 30c is formed on the contact surface with the end surface of the base 20, and the positioning head 20b extends into the positioning groove 30c; a card groove 20c is provided through the side wall of the base 20, and an abutment groove 30d is provided on the side surface of the axis of the end of the replacement seat 30 extending into the replacement cavity 20a, and a bayonet 20d passes through the card groove 20c and extends into the replacement cavity 2 0a and connected with the abutment groove 30d; when replacing, the replacement seat 30 is rotated so that the positioning groove 30c is arranged opposite to the positioning head 20b. As the end of the replacement seat 30 extends into the replacement cavity 20a, the positioning groove 30c is just docked with the positioning head 20b, and the card slot 20c is connected with the abutment groove 30d to ensure that the base 20 forms a stable support for the replacement seat 30; at this time, the base 20 and the replacement seat 30 are locked by the connecting action of the bayonet 20d, preventing the replacement seat 30 from rotating relative to the base 20, thereby ensuring the stability of the connection.

[0055] When assembling on the valve body 7, the replacement seat 30 selected at this time includes a first body 311 and two pins 312. A first cavity 311a for accommodating the valve body 7 is provided at one end of the first body 311 along the axial direction. Two insertion holes 311b are respectively provided on both sides of the first body 311. The two pins 312 pass through the insertion holes 311b on both sides, extend into the first cavity 311a, and abut against the two side walls of the valve body 7; when installing the valve body 7 on the replacement seat 30, first pull out the pins 312 on both sides from the insertion holes 311b to avoid damaging the surface of the valve body 7. At this time, the valve body 7 is placed in the first cavity 311a on the first body 311, and then the pins 312 are inserted into the insertion holes 311b and abut against the holes on the side walls of the valve body 7, thereby limiting the position and angle of the valve body 7, thereby preventing the valve body 7 from rotating when the nut 6 is tightened later, so as to ensure the assembly effect.

[0056] When assembled on the bolt 5, since the end of the bolt 5 is small, the replacement seat 30 selected at this time includes a second body 321, a fixing seat 322 and a fixing head 323. One end of the second body 321 is provided with a second cavity 321a for accommodating the fixing seat 322, and the end face of the fixing head 323 is adapted to the end face of the bolt 5; when the bolt 5 is installed on the replacement seat 30, the bolt 5 needs to be lifted by the fixing seat 322 so that the threaded portion of the bolt 5 is exposed above the assembly surface 30a, and the fixing seat 32 The side facing the limit block 43 is partially recessed along the axis to form a fixing groove 322a. The fixing head 323 is arranged in the fixing groove 322a. The second body 321, the fixing seat 322 and the fixing head 323 are coaxially arranged. The end of the bolt 5 is placed in the fixing groove 322a. The end face of the fixing head 323 is clamped in the end of the bolt 5. Since the end face of the fixing head 323 is polygonal, a restrictive effect is formed to prevent the bolt 5 from relatively rotating in the fixing groove 322a, thereby ensuring the assembly effect.

[0057] Since the end face size and shape of the bolt 5 are different, it is necessary to select a fixing head 323 of different sizes and shapes to be assembled on the fixing seat 322 according to different bolts 5. The fixing seat 322 is provided with a through hole 322b and a positioning hole 322c, and the fixing head 323 is provided with a fixing hole 323a. The positioning hole 322c is coaxially arranged with the fixing seat 322, and the axes of the through hole 322b and the fixing hole 323a are perpendicular to the axis of the positioning hole 322c. One end of the fixing head 323 passes through the positioning hole 322c, and the other end is restricted in the fixing groove 322a. A through pin 324 passes through the through hole 322b and the fixing hole 323a in sequence. 23a, connect the fixing seat 322 and the fixing head 323; when replacing, first remove the through pin 324 from the through hole 322b and the fixing hole 323a, then pull the fixing head 323 out of the positioning hole 322c from the end where the fixing groove 322a is located, and replace it with a suitable fixing head 323. When the fixing head 323 extends into the fixing hole 323a and is connected with the through hole 322b, the fixing head 323 reaches the installation position. Then, the through pin 324 is passed back into the through hole 322b and the fixing hole 323a to form a fixation, preventing the fixing head 323 from falling off from the fixing seat 322, ensuring the stability of the connection, and thus ensuring the assembly effect.

[0058] On the basis of the above embodiment, in order to ensure the stability of the rotation of the bracket 42, a transfer groove 411 is provided on the side of the support 41 facing the bracket 42, and the bracket 42 includes a rotating arm 421 and a support arm 422 arranged perpendicular to each other. One end of the support arm 422 extends into the transfer groove 411 and is connected to the bracket 41 through a rotating pin 46. The perforated pin 44 is located at the other end of the support arm 422, and the limit block 43 is provided at the end of the rotating arm 421 away from the rotating arm 421; the two side walls of the transfer groove 411 are respectively in contact with the two sides of the support arm 422, and under the connecting action of the rotating pin 46, the bracket 42 is prevented from deflecting during the rotation process, thereby ensuring the stability of the rotation.

[0059] On the basis of the above embodiment, the angle of rotation of the bracket 42 around the rotating pin 46 is 90°. When rotating to the two extreme positions, the two planes of the support arm 422 will be parallel to the bottom of the adapter groove 411 respectively. In order to prevent the right angle formed by the two planes from interfering with the adapter groove 411 during the rotation process, the support arm 422 is extended into one end of the adapter groove 411 to form an arc angle 422a, and a guide slope 411a is formed at one end of the adapter groove 411. The arc angle 422a is arranged opposite to the guide slope 411a. During rotation, the arc angle 422a will be tangent to the guide slope 411a and slide and rotate along the guide slope 411a, thereby avoiding interference and forming a guiding effect.

[0060] On the basis of the above embodiment, in order to ensure that the limit block 43 can be just clamped between the blades of the exhaust valve disc 2 and the exhaust limit plate 1, the rotating arm 421 forms an opening 421a on the side of the limit block 43, and the limit block 43 forms a protrusion 431 on the side of the rotating arm 421, and the protrusion 431 cooperates with the opening 421a; the rotating arm 421 is provided with a shift groove 421b, and the limit block 43 is connected to a moving head 432, and the end of the moving head 432 extends into the shift groove 421b to connect the rotating arm 421 and the limit block 43; by changing the position of the moving head 432 in the shift groove 421b, the relative position of the protrusion 431 in the opening 421a is changed, thereby changing the length of the limit block 43 extending out of the rotating arm 421 to adapt to exhaust valve discs 2 and exhaust limit plates 1 of different sizes, ensuring the clamping effect, thereby ensuring the assembly effect.

[0061] On the basis of the above embodiment, in order to ensure the uniformity of the limiting effect of the tension spring 45 on the rotation process of the bracket 42, two tension springs 45 are provided, and two corresponding fixing openings 10a are provided on the base plate 10, which are respectively located on both sides of the support 41. The two ends of the tension spring 45 are respectively connected to the end of the perforated pin 44 and the fixing opening 10a, which facilitates the connection of the end of the tension spring 45. At the same time, through the connecting action of the end of the perforated pin 44, the tension spring 45 forms a uniform force on both sides of the bracket 42, thereby ensuring the stability of the rotation.

[0062] It should be noted that the axes of the perforating pin 44 and the rotating pin 46 are not located in the same vertical plane. As the bracket 42 switches from the compressed state to the open state, the plane where the axis of the perforating pin 44 is located will move from the side close to the base 20 to the side away from the base 20. The tension spring 45 is shortest when the axes of the two are in the same vertical plane, and has a tendency to move toward the side close to the base 20. When the external force is removed, the state of the tension spring 45 is stable only when it is compressed or fully opened. On the one hand, it ensures the compression effect of the limit block 43, and on the other hand, it prevents the bracket 42 from colliding or interfering with the bracket 42 when the valve plate 3 assembly is taken out when it is not fully opened, causing damage to the device or the valve plate 3 assembly.

[0063] The present invention also provides a method for using the above valve plate 3 assembly tool, comprising the following steps:

[0064] Select a suitable replacement seat 30 and assemble it on the base 20 , and place the corresponding bolt 5 or valve body 7 on the replacement seat 30 ;

[0065] The intake valve disc 4, valve plate 3, exhaust valve disc 2 and exhaust limit plate 1 are sequentially sleeved on the bolts 5 or the valve body 7 and placed on the assembly surface 30a. The positioning pin 30b is sequentially passed through the limiting holes on the intake valve disc 4 and valve plate 3 and is clamped between the blades of the exhaust valve disc 2 and the exhaust limit plate 1.

[0066] The bracket 42 is moved so that the bracket 42 rotates relative to the support 41, the tension spring 45 contracts from the extended state, and the limit block 43 moves closer to the exhaust limit plate 1;

[0067] When the limit block 43 rotates to rest on the exhaust limit plate 1, the tension spring 45 extends again, and the limit block 43 presses the intake valve plate 4, valve plate 3, exhaust valve plate 2 and exhaust limit plate 1 onto the assembly surface 30a; the nut 6 is screwed onto the bolt 5 or the valve body 7 and tightened to form the valve plate 3 assembly;

[0068] The bracket 42 is shifted to rotate in the opposite direction to remove the valve plate 3 assembly from the replacement seat 30 .

[0069] The technical effects achieved by the operation process of this method are the same as those in the above embodiment and will not be repeated here.

[0070] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve plate assembly tool, characterized in that: include: Base plates, bases, replacement seats, and hold-down assemblies; The base is fixed on the bottom plate, the replacement seat is detachably connected to the base, and the pressing assembly is fixed on one side of the base; The replacement seat is provided with an assembly surface and a positioning pin, and the axis of the positioning pin is arranged perpendicular to the assembly surface; The clamping assembly includes a support, a bracket, a limit block, a perforated pin and a tension spring, the support is fixed on the axial side of the base, one end of the bracket is rotatably connected to the support, the limit block is fixed to the other end of the bracket and is arranged opposite to the assembly surface, the perforated pin passes through the bracket, and the two ends of the tension spring are respectively fixedly connected to the perforated pin and the base plate; When assembled on the valve body, the replacement seat includes a first body and two latches. A first cavity for accommodating the valve body is provided at one end of the first body along the axial direction. Two insertion holes are respectively provided on both sides of the first body. The two latches respectively pass through the insertion holes on both sides, extend into the first cavity, and abut against the two side walls of the valve body. When assembled on the bolt, the replacement seat includes a second main body, a fixing seat and a fixing head. A second cavity for accommodating the fixing seat is provided at one end of the second main body, and the end face of the fixing head is adapted to the end face of the screw; the fixing seat is partially recessed along the axis toward one side of the limit block to form a fixing groove, and the fixing head is arranged in the fixing groove, and the second main body, the fixing seat and the fixing head are coaxially arranged.

2. The valve plate assembly assembly tool according to claim 1, characterized in that: A transfer groove is provided on the side of the support facing the bracket, and the bracket includes a rotating arm and a support arm arranged perpendicular to each other. One end of the support arm extends into the transfer groove and is connected to the support through a rotating pin. The perforated pin is located at the other end of the support arm, and the limit block is provided at the end of the rotating arm away from the rotating arm.

3. The valve plate assembly assembly tool according to claim 2, characterized in that: One end of the support arm extending into the adapter groove forms an arc angle, one end of the adapter groove forms a guide slope, and the arc angle is arranged opposite to the guide slope.

4. The valve plate assembly assembly tool according to claim 3, characterized in that: The rotating arm forms an opening on one side facing the limit block, and the limit block forms a protrusion on one side facing the rotating arm, and the protrusion cooperates with the opening; the rotating arm is provided with a shift groove, and the limit block is connected to a moving head, and the end of the moving head extends into the shift groove to connect the rotating arm and the limit block.

5. The valve plate assembly assembly tool according to claim 4, characterized in that: Two tension springs are provided, and two fixing openings are correspondingly provided on the bottom plate, respectively located on both sides of the support, and the two ends of the tension spring are respectively connected to the end of the perforated pin and the fixing opening.

6. The valve plate assembly assembly tool according to claim 1, characterized in that: The base is provided with a replacement cavity at one end away from the bottom plate, and two positioning heads are provided on the end surface. The end of the replacement seat opposite to the base is retracted and extends into the replacement cavity, and a positioning groove is formed on the contact surface with the end surface of the base, and the positioning head extends into the positioning groove; A card slot is provided on the side wall of the base, and an abutment slot is provided on the side surface of the shaft of one end of the replacement seat extending into the replacement cavity. A card pin passes through the card slot and extends into the replacement cavity and connects with the abutment slot.

7. The valve plate assembly assembly tool according to claim 1, characterized in that: The fixing seat is provided with a through hole and a positioning hole, and the fixing head is provided with a fixing hole. The positioning hole is coaxial with the fixing seat, and the axes of the through hole and the fixing hole are perpendicular to the axis of the positioning hole. One end of the fixing head passes through the positioning hole, and the other end is restricted in the fixing groove. A through pin passes through the through hole and the fixing hole in sequence to connect the fixing seat and the fixing head.

8. A method for using the valve plate assembly tool according to claim 1, characterized in that: The following steps are involved: Select a suitable replacement seat and assemble it on the base, then place the corresponding bolts or valve body on the replacement seat; Attach the intake valve disc, valve plate, exhaust valve disc and exhaust limit plate to the bolts or valve body in sequence and place them on the assembly surface. The positioning pins pass through the limit holes on the intake valve disc and valve plate in sequence and are clamped between the blades of the exhaust valve disc and the exhaust limit plate. The bracket is moved so that the bracket rotates relative to the support, the tension spring contracts from the extended state, and the limit block moves closer to the exhaust limit plate; When the limit block rotates to rest on the exhaust limit plate, the tension spring extends again, and the limit block presses the intake valve plate, valve plate, exhaust valve plate and exhaust limit plate onto the assembly surface; Screw the nut onto the bolt or valve body and tighten it to form the valve plate assembly; Turn the bracket in the opposite direction to remove the valve plate assembly from the replacement seat.

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