A valve lock clamp assembly pressure plate device with automatic deviation-correcting spring

Abstract

The present invention discloses a valve lock clamp assembly pressure plate device for an automatic deviation-correcting spring, which relates to the technical field of engine valve lock clamp assembly. The device comprises: a lower pressure plate, on which a limiting groove is provided, which corresponds one-to-one with the valve stem on the cylinder; and a mounting groove, which is provided on the other side of the lower pressure plate and is correspondingly connected to the limiting groove; wherein, when the lower pressure plate is in contact with the cylinder, the valve spring sleeved on the outside of the valve stem is located in the limiting groove. The valve lock clamp assembly pressure plate device for an automatic deviation-correcting spring described in the present invention uses a lower pressure plate with a limiting groove to squeeze the valve spring, thereby confining the valve spring to a small space. Therefore, it effectively solves the technical problem that the valve spring is easily misaligned when installing the engine valve lock clamp, thereby achieving accurate press-fitting of the valve spring, eliminating the press-fitting failure that all springs cannot be pressed into place at one time, and effectively improving installation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of engine valve lock clip assembly, in particular to a valve lock clip assembly pressure plate device with an automatic deviation-correcting spring. Background Art

[0002] The function of the valve is to input air into the engine and discharge the exhaust gas after combustion. From the perspective of engine structure, it is divided into intake valve and exhaust valve. The function of the intake valve is to suck air into the engine and mix it with fuel for combustion; the function of the exhaust valve is to discharge the exhaust gas after combustion and dissipate heat. The valve lock clip needs to be assembled during engine production. The valve lock clip needs to cooperate with the groove of the valve stem so that the valve lock clip is placed between the end of the valve and the valve spring seat.

[0003] At present, the Chinese patent application number "CN202110295105.4" discloses an engine valve lock clamp assembly device, which includes a guide rod, a cylinder mounting frame, a valve lock clamp mounting frame, a cylinder head conveying roller, a lifting mechanism, and a limiting mechanism. A guide rod is installed on the top of the inner wall of the cylinder mounting frame. The top end of the guide rod is located at the top of the cylinder mounting frame and a limiting mechanism is installed. The limiting mechanism includes a limiting mechanism bottom plate, a front side plate, an intermediate adjustment plate, and a rear side plate. Bottom plate bolts are installed at the four corners of the top of the limiting mechanism bottom plate. Bottom plate flat washers and bottom plate spring washers are installed on the bottom plate bolts in sequence from top to bottom at the top of the limiting mechanism bottom plate. An intermediate adjustment plate is installed between the inner sides of the front side plate and the rear side plate, and an adjustment bolt is installed on the top of the intermediate adjustment plate. Although it can prevent the valve lock clamp from being pressed too deeply into the valve spring seat and causing the valve oil seal to be damaged, the valve spring is naturally higher than the valve lock clamp installation position before the valve lock clamp is assembled. Therefore, if the valve spring is not limited, it is very easy to be misaligned, seriously affecting the safety of the valve lock clamp installation.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were found:

[0005] The valve spring is prone to misalignment during installation, and the locking plate installation is too cumbersome: when installing the engine valve lock clip, because the valve spring is naturally higher than the valve pin clip installation position before the valve lock clip is assembled, the valve spring needs to be compressed to allow the valve stem to expose enough margin to install the valve lock clip. The traditional method is to press a pressure plate with a through hole on the cylinder, and make the through hole correspond to the valve stem on the cylinder, and then press the pressure plate down to make the valve stem pass through the through hole, so that the valve stem is exposed, and the valve lock clip to be installed can be installed between the valve stem and the spring seat from both sides. However, since the pressure plate is only pre- A hole is left for the valve stem to pass through, but the valve spring cannot be limited, resulting in the valve spring being offset when the pressure plate is squeezed, so that the valve spring is deformed or worn. In addition, after the valve stem is exposed, the valve lock clamp needs to be installed on the valve stem manually. Due to the instability of manual labor, not only a lot of time and energy are required for installation and inspection, but also when the valve lock clamp is installed misplaced, the valve lock clamp will splash under the action of the valve spring, seriously affecting the safety and stability of the valve lock clamp installation. For this reason, we propose a valve lock clamp assembly pressure plate device with an automatic correction spring. Summary of the Invention

[0006] (1) Technical problems solved

[0007] In view of the shortcomings of the existing technology, the present invention provides a valve lock clamp assembly pressure plate device with an automatic correction spring, which solves the technical problems that the valve spring is easily misaligned and the locking plate installation is too complicated when installing the engine valve lock clamp.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A valve lock clamp assembly pressure plate device with an automatic deflection-correcting spring is used for installing a locking plate on the top of a valve stem. The valve lock clamp assembly pressure plate device includes:

[0011] The lower pressure plate has a limit groove formed thereon, and the limit groove corresponds one to one with the valve stem on the cylinder;

[0012] The installation groove is provided on the other side of the lower pressing plate and is correspondingly connected to the limiting groove;

[0013] When the lower pressure plate is fitted with the cylinder, the valve spring sleeved on the outside of the valve stem is located in the limiting groove, and the end of the valve stem passes through the lower pressure plate and extends to the installation groove on the other side of the lower pressure plate.

[0014] Preferably, the limiting groove is divided into two parts that are interconnected. One part is a cylindrical slot hole, and the inner diameter of the slot hole is consistent with the outer diameter of the spring seat at the top of the valve spring. The other part is a funnel-shaped guide groove, and the inner diameter of the guide groove is smaller at the top and larger at the bottom. The end of the guide groove with the smallest inner diameter corresponds to the limiting groove.

[0015] Preferably, an assembly component is installed on the top of the lower pressure plate, and the locking plate is installed between the valve stem and the spring seat through the assembly component;

[0016] Wherein, the assembly components include:

[0017] A protective member connected to a side of the lower pressing plate close to the mounting groove;

[0018] a docking piece, which is arranged in the protective piece and is used to sleeve the locking plate onto the outside of the valve stem; and

[0019] There are two sets of limiters, which are symmetrically arranged on the inner walls of both sides of the protective member. The locking piece is located between the two sets of limiters, and the limiters restrict the locking piece from moving downward;

[0020] The docking member includes a docking rod inserted in the center of the protective member, and the locking plate is in contact with the outer wall of the docking rod. One end of the docking rod extends to the bottom of the protective member, and the other end is connected to the top cover installed on the top of the protective member through a spring.

[0021] When the lower pressure plate is pressed down toward the top of the cylinder, the valve stem corresponds to the docking rod at the center of the storage tube up and down, and pushes the docking rod upward, and the locking piece sleeved on the outside of the docking rod moves to the outside of the valve stem under the blocking action of the limit member.

[0022] Preferably, the top cover is connected to a plug rod on one side facing the docking rod, and the plug rod is plugged into the end of the docking rod, and the spring connected between the docking rod and the top cover is sleeved on the outside of the plug rod;

[0023] Wherein, the outer diameter of the docking rod is consistent with the outer diameter of the valve stem.

[0024] Preferably, the outer wall of the docking piece is provided with a plurality of reserved grooves, two in a group, and the two reserved grooves in the same group are symmetrically arranged on the docking piece, the plurality of groups of reserved grooves are equidistantly distributed from top to bottom, and the spacing between two adjacent groups of reserved grooves is equal to the height of the locking plate;

[0025] Wherein, an extrusion rod is provided in the reserved groove, and one end of the extrusion rod is hinged to the inner wall of the reserved groove, and the other end is expanded outward under the action of the arc-shaped spring piece in the reserved groove;

[0026] When the docking rod moves upward, the extrusion rod moves into the reserved groove under the extrusion action of the locking plate;

[0027] When the docking rod moves downward, the extrusion rod is expanded under the action of the arc-shaped spring piece and fits with the clamping strip on the inner side of the locking plate, driving the locking plate to move downward.

[0028] Preferably, the position-limiting member comprises a connecting seat symmetrically arranged on the inner wall of the protective member, and a rotating shaft is movably connected between two adjacent connecting seats, and a linking belt is sleeved between the two corresponding rotating shafts;

[0029] Wherein, an embedding groove is provided on the outer wall of the linkage belt, and the embedding groove has the same shape as the outer wall of the locking plate.

[0030] Preferably, one end of the rotating shaft passes through the connecting seat, and the end is connected to an anti-reverse gear and corresponds to the locking tooth spring on the connecting seat;

[0031] Wherein, latch teeth are evenly distributed on the outer wall of the anti-reverse gear, and the free end of the latch tooth spring is inserted into the gap between the latch teeth.

[0032] Preferably, the protective member includes a cylindrical storage tube, and a guide tube is installed on each side of the storage tube, and the locking piece is stored in the guide tube and can slide along the guide tube;

[0033] Wherein, a through hole corresponding to the end of the guide tube is opened on the outside of the storage tube, and the locking piece inside the guide tube can enter the storage tube through the through hole.

[0034] Preferably, two mutually symmetrical connecting hooks are provided at the bottom of the storage tube, and the connecting hooks correspond to the notches in the installation slot. When the storage tube is fitted with the lower pressure plate, the connecting hooks are located in the notches and are buckled with the lower pressure plate.

[0035] Preferably, the locking piece corresponds to the extrusion rod outside the docking rod, and the limiting member corresponds to the gap between the two locking pieces and is located between the two extrusion rods;

[0036] Wherein, the end of the guide cylinder corresponds to the gap between the two limiting members.

[0037] (3) Beneficial effects

[0038] 1. Since a lower pressure plate with a limiting groove is used to squeeze the valve spring, the valve spring is confined to a small space to prevent the valve spring from being offset or misplaced when the lower pressure plate squeezes the valve spring. Therefore, the technical problem of valve spring being easily misplaced when installing the engine valve lock clip is effectively solved, thereby achieving accurate press-fitting of the valve spring, eliminating the press-fitting failure of all springs not being able to be pressed into place at one time, and effectively improving installation efficiency.

[0039] 2. Since the valve stem will pass through the lower pressure plate when the valve stem is squeezed by the lower pressure plate, a docking rod corresponding to the valve stem is installed on the other side of the lower pressure plate, and the locking plate to be installed is sleeved on the outside of the valve stem. The one-way rotation function of the limiter is then used to limit the locking plate to move downward only. In this way, the locking plate can be kept stationary when the gas stem squeezes the docking rod, and thus move from the outside of the docking rod to the valve stem, thereby completing the installation of the locking plate. As the valve stem moves out of the storage tube, the locking plate can be installed between the valve stem and the spring seat. This process does not require manual operation. Therefore, it effectively solves the technical problem of the cumbersome installation of the locking plate when installing the engine valve lock clamp, and thus achieves the purpose of automatic installation of the locking plate, thereby improving the accuracy and stability of the installation of the locking plate. Secondly, since the improved locking plate only requires the lower pressure plate to move up and down once, the installation of all locking plates can be completed, thereby improving the installation efficiency of the locking plate.

[0040] 3. By setting a spring at the end of the docking rod, it can move synchronously when the docking rod is removed, and then using the expandable extrusion rod set on the outside of the docking rod, the locking piece in the storage tube can be driven down together, thus forming a cycle, and the installation of the locking piece can be repeated. In addition, a guide tube for storing the locking piece is installed on each side of the storage tube, thereby increasing the storage capacity of the locking piece and making it convenient for the staff to load the locking piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

[0042] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0043] Figure 2 Schematic diagram of the front and back structures of the lower pressing plate in an embodiment of the present invention;

[0044] Figure 3 A partial cross-sectional view of the lower pressing plate in an embodiment of the present invention;

[0045] Figure 4 A structural diagram of an assembly component in an embodiment of the present invention;

[0046] Figure 5 Schematic diagram of the exploded structure of the assembly components in an embodiment of the present invention;

[0047] Figure 6 Schematic diagram of the docking mechanism between the docking member and the locking plate in an embodiment of the present invention;

[0048] Figure 7This is a structural diagram of a position limiting member in an embodiment of the present invention;

[0049] Figure 8 Schematic diagram of the partial structure of the limiting member in an embodiment of the present invention;

[0050] Figure 9 This is one of the schematic diagrams of the locking plate assembly in an embodiment of the present invention;

[0051] Figure 10 This is the second schematic diagram of the locking plate assembly in an embodiment of the present invention;

[0052] Figure 11 This is the third schematic diagram of the locking plate assembly in an embodiment of the present invention;

[0053] Figure 12 This is the fourth schematic diagram of the locking plate assembly in the embodiment of the present invention.

[0054] Legend:

[0055] 11. Lower pressure plate; 12. Convex plate; 13. Limiting groove; 14. Mounting groove;

[0056] 2. Protective element; 21. Storage tube; 22. Guide tube; 23. Connecting hook;

[0057] 3. Docking piece; 31. Top cover; 32. Insertion rod; 33. Docking rod; 34. Extrusion rod; 35. Arc-shaped spring piece;

[0058] 4. Limiting member; 41. Connecting seat; 42. Linking belt; 43. Embedding groove; 44. Rotating shaft; 45. Anti-reverse gear; 46. Tooth spring;

[0059] 51. Locking plate; 52. Card strip;

[0060] 61. Valve stem; 62. Valve spring; 63. Spring seat. DETAILED DESCRIPTION

[0061] The embodiment of the present application provides a valve lock clamp assembly pressure plate device with an automatic correction spring, which effectively solves the technical problems that the valve spring is easily misaligned and the locking plate installation is too cumbersome when installing the engine valve lock clamp. When installing the engine valve lock clamp, a lower pressure plate with a limiting groove is used to squeeze the valve spring, thereby limiting the valve spring to a small space to prevent the valve spring position from being offset or misaligned when the lower pressure plate squeezes the valve spring, thereby achieving accurate press-fitting of the valve spring, eliminating the press-fitting failure that all springs cannot be pressed into place at one time, and effectively improving the installation efficiency; due to the characteristic that the valve stem will pass through the lower pressure plate when the lower pressure plate is used to squeeze the valve stem, the valve stem can be installed on the other side of the lower pressure plate. Install a docking rod that can correspond to the valve stem, and put the locking plate to be installed on the outside of the valve stem, and then use the one-way rotation function of the limiter to limit the locking plate to move downward. In this way, when the gas stem squeezes the docking rod, the locking plate can be kept stationary, thereby moving from the outside of the docking rod to the valve stem, thereby completing the installation of the locking plate. As the valve stem leaves the storage tube, the locking plate can be installed between the valve stem and the spring seat. This process does not require manual operation, thereby achieving the purpose of automatic installation of the locking plate, thereby improving the accuracy and stability of the locking plate installation. Secondly, since the improved locking plate only requires the lower pressure plate to move up and down once, the installation of all locking plates can be completed, thereby improving the installation efficiency of the locking plate.

[0062] Example 1: The technical solution in the embodiment of the present application is to solve the technical problems that the valve spring 62 is easily misaligned and the locking plate 51 is too complicated to install when installing the engine valve lock clip. The overall idea is as follows:

[0063] After studying the existing locking plate 51 assembly equipment, it was found that when the valve lock clip (i.e., the locking plate 51) is installed in the engine, because the valve spring 62 is naturally higher than the installation position of the valve pin clip before the valve lock clip is assembled, the valve spring 62 needs to be compressed to allow the valve stem 61 to expose enough margin to install the valve lock clip. However, the traditional method is to press the lower pressure plate 11 with a through hole onto the cylinder, and make the through hole correspond to the valve stem 61 on the cylinder, and then press the lower pressure plate 11 to make the valve stem 61 pass through the through hole. In this way, the valve stem 61 is exposed to the outside, and the valve lock clip to be installed can be installed between the valve stem 61 and the spring seat 63 from both sides, which seriously affects the safety and stability of the valve lock clip installation.

[0064] To address the problems existing in the prior art, the present invention provides a valve lock clamp assembly pressure plate device with an automatic deflection-correcting spring. This application is mainly used to assist personnel in installing the locking plate 51 onto the engine valve stem 61, and to prevent the deflection of the valve spring 62. The main structure of this application is as follows:

[0065] By opening a limiting groove 13 on the side of the lower pressing plate 11 facing the valve spring 62 (located on the side of the lower pressing plate 11 with the convex plate 12), the limiting groove 13 is divided into two parts, one part is a cylindrical slot hole, such as Figure 3 As shown, the part directly connected to the mounting groove 14, and in order to ensure that the valve spring 62 does not move, the inner diameter of the slot is made to be consistent with the outer diameter of the spring seat 63 at the top of the valve spring 62, so that when the valve spring 62 and the spring seat 63 enter the slot, they can fit perfectly with the slot without offset or misalignment; the other part is a funnel-shaped guide groove, the inner diameter of which is smaller at the top and larger at the bottom, the end with the smallest inner diameter of the guide groove corresponds to the limit groove 13, and the largest end faces the convex plate 12, as shown in FIG. Figure 3 As shown, the valve spring 62 can be guided before it enters the slot, so that the valve spring 62 can accurately enter the slot.

[0066] On the other side of the lower pressure plate 11, and opposite to the slot, a funnel-shaped mounting groove 14 is provided, so that when the locking plate 51 is installed, the user can easily place it on both sides of the valve stem 61. The locking plate 51 can also be installed by equipment instead of manually, which is another key point of this application.

[0067] During the specific implementation process, the lower pressure plate 11 is squeezed toward the top of the engine cylinder, and as the lower pressure plate 11 continues to approach, the valve spring 62 sleeved on the outside of the valve stem 61 enters the slot hole under the guidance of the guide groove. Since the inner diameter of the slot hole is consistent with the outer diameter of the spring seat 63 at the top of the valve spring 62, the valve spring 62 and the spring seat 63 can perfectly fit into the slot hole when entering the slot hole, and the valve stem 61 located in the middle position of the valve spring 62 passes through the connecting part between the mounting slot 14 and the limiting slot 13, and extends to the mounting slot 14 on the other side of the lower pressure plate 11, as shown in FIG. Figure 10 and Figure 11 shown.

[0068] Example 2: Based on Example 1, the embodiment of the present application solves the technical problem that the installation of the engine locking plate 51 is too cumbersome. The reason why the locking plate 51 is installed by machine instead of manually is that manual labor is unstable, which not only requires a lot of time and energy to install and check (whether the locking plate 51 is installed in place), but also, if the locking plate 51 is installed misplaced, when the lower pressure plate 11 is raised, the locking plate 51 will splash under the action of the elastic force of the valve spring 62, seriously affecting the safety and stability of the installation of the locking plate 51. The overall idea is as follows:

[0069] During the use of the lower pressing plate 11, it was found that when the lower pressing plate 11 squeezes the valve stem 61, the valve stem 61 will pass through the lower pressing plate 11. Therefore, in order to replace manual installation of the locking plate 51, this characteristic can be utilized. The specific structure is as follows:

[0070] A cylindrical storage tube 21 is used to store the locking plate 51. In order to install the locking plate 51 on the protruding end of the valve stem 61, the storage tube 21 needs to be installed on the side of the lower pressure plate 11 close to the installation groove 14. It should be noted that two symmetrical connecting hooks 23 are installed on the side of the storage tube 21 facing the lower pressure plate 11, and the inner edge of the installation groove 14 is provided with a notch corresponding to the connecting hooks 23. Figure 1 As shown, when the storage tube 21 is fitted with the lower pressure plate 11, the connecting hook 23 can be inserted into the gap and finally hooked onto the lower pressure plate 11. In this way, the storage tube 21 can be freely disassembled and replaced as needed, making maintenance easier.

[0071] Insert the docking rod 33 into the storage tube 21. The locking piece 51 is transferred to the valve stem 61 through the docking rod 33. One end of the docking rod 33 is connected to the top cover 31 on the top of the protective member 2 through a spring, and the other end extends in the direction of the lower pressure plate 11. When the lower pressure plate 11 is docked with the cylinder, the valve stem 61 can correspond to the docking rod 33 up and down, and the locking piece 51 stored in the storage tube 21 is sleeved on the docking rod 33. Figure 5 and Figure 6 As shown, when the valve stem 61 squeezes the docking rod 33, the locking plate 51 on the docking rod 33 can slide onto the valve stem 61. In order to ensure that the locking plate 51 can move accurately and stably from the docking rod 33 to the valve stem 61, the outer diameter of the docking rod 33 needs to be consistent with the outer diameter of the valve stem 61, so that there will be no jamming when the locking plate 51 moves.

[0072] Moreover, when the annular groove on the outside of the valve stem 61 engages with the clip 52 on the inside of the locking plate 51, the valve stem 61 can hook the locking plate 51, so when the valve stem 61 is moved out of the storage tube 21, the locking plate 51 can be taken out together, thereby completing the installation of the locking plate 51.

[0073] However, during use, it was found that although the locking piece 51 can be moved from the docking rod 33 to the valve stem 61, the distance between the docking rod 33 and the storage tube 21 is difficult to control. If the distance between the two is too large, the locking piece 51 located between the two will fall from the storage tube 21; on the contrary, if the distance between the two is too small, the locking piece 51 located between the two will not be able to fall from the storage tube 21. Therefore, in order to stably clamp the locking piece 51, it is necessary to provide a structure that can limit the locking piece 51.

[0074] After research, we found that by installing two parallel connecting belts 42 inside the storage tube 21, we can form a "clip" to clamp the locking piece 51. This ensures that the locking piece 51 can move while also being clamped. The fixing structure of the connecting belt 42 is as follows:

[0075] First, multiple connecting seats 41 are symmetrically arranged on the inner wall of the protective member 2, and two adjacent connecting seats 41 are connected by a rotating shaft 44, so that two cylindrical rods parallel to each other are formed, and the connecting belt 42 is set between the two corresponding rotating shafts 44. Figure 5 and Figure 7 As shown; a plurality of embedding grooves 43 are evenly opened on the outer wall of the linkage belt 42, and the embedding grooves 43 are consistent with the shape of the outer wall of the locking plate 51, so that when the locking plate 51 is in contact with the linkage belt 42, the locking plate 51 can be stably limited, so that the locking plate 51 cannot be moved out from between the linkage belts 42, thereby ensuring the stability of the fixing of the locking plate 51.

[0076] This method solves the problem of locking the locking pieces 51 being clamped, but in order to be able to install the locking pieces 51 in a circular manner, the locking pieces 51 need to be able to be "filled". To this end, we lengthened the docking rod 33 so that it can store multiple locking pieces 51 at the same time, and simultaneously increased the length of the linkage belt 42. Although the capacity of the locking pieces 51 is increased, it also faces a new problem: how to ensure that the locking pieces 51 can move downward stably. After research, we found that the thrust generated by the downward movement of the docking rod 33 can be used to push the stacked locking pieces 51 downward, as follows:

[0077] A plurality of movable extrusion rods 34 are installed on the outer wall of the docking member 3, and two are grouped together. The two extrusion rods 34 in the same group are symmetrically arranged on the docking member 3, as shown in FIG. Figure 6 As shown, when the docking rod 33 moves downward, the locking pieces 51 on both sides of the docking rod 33 can be moved together. If multiple locking pieces 51 are to be moved stably and synchronously, multiple groups of extrusion rods 34 can be evenly spaced from top to bottom, and the distance between two adjacent groups of reserved grooves is equal to the height of the locking piece 51. In this way, when the docking rod 33 moves downward, the stacked locking pieces 51 can be moved downward together.

[0078] In order to be able to retract and extend the extrusion rod 34, a reserved groove corresponding to the extrusion rod 34 is provided on the outside of the docking rod 33, and one end of the extrusion rod 34 is hinged to the inner wall of the reserved groove, and the other end is expanded outward under the action of the arc-shaped spring piece 35 in the reserved groove;

[0079] In this way, when the docking rod 33 moves upward, the locking piece 51 located above moves downward relative to the docking rod 33. Since the upper end of the extrusion rod 34 is installed in the reserved groove and the other end is expanded outward to form a downward inclined surface, the docking rod 33 moves upward and the extrusion rod 34 moves into the reserved groove under the extrusion of the locking piece 51; on the contrary, when the docking rod 33 moves downward, the extrusion rod 34 is expanded under the action of the arc-shaped spring piece 35 and fits with the card strip 52 on the inner side of the locking piece 51, driving the locking piece 51 to move downward, forming a cycle.

[0080] On the other hand, in order to make the locking piece 51 between the two linkage belts 42 move only downward, one end of the rotating shaft 44 passes through the connecting seat 41 and is connected to an anti-reverse gear 45 at the end. The anti-reverse gear 45 corresponds to the tooth spring piece 46 on the connecting seat 41. Figure 8 The outer wall of the anti-reverse gear 45 is evenly distributed with latch teeth, and the free end of the latch spring 46 is inserted into the gap between the latch teeth to prevent the reverse gear from rotating. Figure 8 For example, when the anti-reverse gear 45 rotates counterclockwise, the anti-reverse gear 45 moves outward toward the latching spring 46. The latching teeth on the outside of the anti-reverse gear 45 push the latching spring 46 outward, so that the latching spring 46 does not get stuck on the anti-reverse gear 45. On the contrary, if the anti-reverse gear 45 rotates clockwise, the latching teeth on the outside of the anti-reverse gear 45 push toward the latching spring 46. Under the blocking effect of the latching spring 46, the anti-reverse gear 45 cannot rotate. Thus, one-way rotation is formed, so that the locking piece 51 between the two linking belts 42 can only move downward, but not upward, thereby stabilizing the material feeding.

[0081] Some minor improvements have also been made to the device, including the following:

[0082] In order to ensure the stability of the up and down movement of the docking rod 33, an insertion rod 32 is connected to the side of the top cover 31 facing the docking rod 33, and one end of the insertion rod 32 is inserted into the docking rod 33, and then a spring connected between the docking rod 33 and the top cover 31 is arranged on the outside of the insertion rod 32. In this way, when the docking rod 33 moves up and down, it will be limited by the insertion rod 32, so that it can only move up and down along the insertion rod 32 without tilting. In addition, the spring outside the insertion rod 32 can also provide a stable thrust for the resetting of the docking rod 33.

[0083] In order to increase the storage capacity of the locking piece 51 and facilitate loading, a guide cylinder 22 is installed on each side of the storage cylinder 21. The locking piece 51 is stored in the guide cylinder 22 and can slide along the guide cylinder 22; the through hole on the outside of the storage cylinder 21 corresponds to the end of the guide cylinder 22. In addition, the locking piece 51 in the storage cylinder 21 corresponds to the extrusion rod 34 on the outside of the docking rod 33 and is located between the two extrusion rods 34. The limit piece 4 corresponds to the gap between the two locking pieces 51, and the end of the guide cylinder 22 is also located between the two limit pieces 4. In this way, the locking piece 51 inside the guide cylinder 22 can enter the storage cylinder 21 through the through hole and move between the two linkage belts 42, thereby cyclic loading.

[0084] In the specific implementation process, when it is necessary to install the locking plate 51 on the valve stem 61, the specific steps are as follows:

[0085] Step 1: Install the lower pressure plate 11 on the lifting device, and place the end of the cylinder with the valve spring 62 upward. When the cylinder moves to the bottom of the lower pressure plate 11, control the lower pressure plate 11 to move toward the direction of the cylinder and press on the cylinder. Figure 9 As shown;

[0086] In the second step, when the lower pressure plate 11 is pressed down, the valve spring 62 sleeved on the outside of the valve stem 61 enters the slot hole under the guidance of the guide groove. Since the inner diameter of the slot hole is consistent with the outer diameter of the spring seat 63 at the top of the valve spring 62, the valve spring 62 and the spring seat 63 can perfectly fit into the slot hole when entering the slot hole, and the valve stem 61 located in the middle position of the valve spring 62 passes through the connecting part between the mounting groove 14 and the limiting groove 13, and extends to the mounting groove 14 on the other side of the lower pressure plate 11. Secondly, the valve stem 61 corresponds to the docking rod 33 in the storage tube 21 up and down, and fits each other, as shown in FIG. Figure 10 As shown;

[0087] In the third step, the lower pressure plate 11 continues to press down. Since the valve spring 62 has been restricted in the slot, the valve spring 62 will not be offset or misplaced when pressed down, and the valve stem 61 located at the center of the valve spring 62 passes through the lower pressure plate 11 and continues to move upward. Figures 10 to 11 As shown, since the valve stem 61 and the docking rod 33 are in conflict with each other, when the valve stem 61 continuously moves upward, the docking rod 33 can be squeezed to move upward along with it.

[0088] However, the rotating shaft 44 inside the link belt 42 is connected to an anti-reverse gear 45, and a tooth spring 46 is provided on one side of the anti-reverse gear 45 to prevent the reverse gear from rotating. Figure 8Taking the state of the anti-reverse gear 45 as an example, when the anti-reverse gear 45 rotates counterclockwise, the anti-reverse gear 45 moves outward toward the latching tooth spring piece 46, so that the latching teeth on the outside of the anti-reverse gear 45 push the latching tooth spring piece 46 outward, so that the latching tooth spring piece 46 will not get stuck in the anti-reverse gear 45. On the contrary, if the anti-reverse gear 45 rotates clockwise, the latching teeth on the outside of the anti-reverse gear 45 push toward the direction of the latching tooth spring piece 46, and under the blocking effect of the latching tooth spring piece 46, the anti-reverse gear 45 cannot rotate. Therefore, when the valve stem 61 drives the docking rod 33 to move upward, the locking piece 51 located between the two linkages 42 remains stationary until the locking piece 51 on the docking rod 33 slides onto the valve stem 61. Moreover, since the outer diameter of the docking rod 33 is consistent with the outer diameter of the valve stem 61, the locking piece 51 can accurately and stably move from the docking rod 33 to the valve stem 61 without getting stuck, until the groove on the outside of the valve stem 61 engages with the card strip 52 on the inner side of the locking piece 51. Figure 11 As shown;

[0089] Secondly, when the docking rod 33 moves upward, the locking piece 51 located above moves downward relative to the docking rod 33. Since the upper end of the extrusion rod 34 is installed in the reserved groove and the other end is extended outward to form a downward inclined surface, when the docking rod 33 moves upward, the extrusion rod 34 will move into the reserved groove under the squeezing action of the locking piece 51.

[0090] In the fourth step, the valve stem 61 moves downward. Since the top of the docking rod 33 is connected to the top cover 31 on the storage tube 21 by a spring, and the spring is compressed and stores force during the upward movement of the docking rod 33, when the valve stem 61 moves downward, the docking rod 33 docked therewith moves downward synchronously, and the extrusion rod 34 located outside the docking rod 33 is expanded under the action of the arc-shaped spring piece 35, and fits with the card strip 52 on the inner side of the locking plate 51, driving the locking plate 51 to move downward to the bottom of the storage tube 21, so that when the next valve stem 61 is inserted, the locking plate 51 can also be installed on it, thereby forming a cycle. At the same time, since the linkage belt 42 is tightly fitted with the outer wall of the locking plate 51, when the locking plate 51 moves downward, it can drive the linkage belt 42 to move downward together.

[0091] In the process of the docking rod 33 moving up, the locking piece 51 stored in the guide tube 22 slides along the guide tube 22 into the storage tube 21 and fits with the docking rod 33 in the storage tube 21. Figure 9 As shown in the upper right corner, as the docking rod 33 moves upward, the squeezing rod 34 at the top of the docking rod 33 is unfolded. Figure 10As shown in the upper right corner, at this time, the locking piece 51 is located in the gap between the two linkage belts 42, so when the linkage belt 42 is driven to move downward, it can clamp the locking piece 51 and pull it downward. At the same time, the squeezing rod 34 at the top of the docking rod 33 also squeezes the locking piece 51, thereby converging the locking piece 51 from the guide tube 22 to between the two linkage belts 42.

[0092] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A valve lock clamp assembly pressure plate device for an automatic deviation-correcting spring, used for installing a locking plate (51) at the top of a valve stem (61), characterized in that: The valve lock clip assembly pressure plate device comprises: A lower pressure plate (11) having a limit groove (13) formed thereon corresponding to a valve stem (61) on the cylinder; The mounting groove (14) is provided on the other side of the lower pressing plate (11) opposite to the limiting groove (13) and is correspondingly connected to the limiting groove (13); When the lower pressure plate (11) is fitted to the cylinder, the valve spring (62) sleeved on the outside of the valve stem (61) is located in the limiting groove (13), and the end of the valve stem (61) passes through the lower pressure plate (11) and extends to the mounting groove (14) on the other side of the lower pressure plate (11); An assembly component is installed on the top of the lower pressure plate (11), and the locking plate (51) is installed between the valve stem (61) and the spring seat (63) through the assembly component; Wherein, the assembly components include: A protective member (2) is connected to a side of the lower pressure plate (11) near the mounting groove (14); the protective member (2) includes a cylindrical storage tube (21), and a guide tube (22) is installed on each side of the storage tube (21); the locking piece (51) is stored in the guide tube (22) and can slide along the guide tube (22); wherein, a through hole corresponding to the end of the guide tube (22) is opened on the outside of the storage tube (21), and the locking piece (51) inside the guide tube (22) can enter the storage tube (21) through the through hole; a docking member (3) disposed in the protective member (2) and used for sleeve-mounting the locking plate (51) on the outside of the valve stem (61); and Two groups of unidirectionally rotatable limiting members (4) are provided and symmetrically arranged on the inner walls of both sides of the protective member (2); the locking piece (51) is located between the two groups of limiting members (4), and the locking piece (51) can only move downward under the restriction of the limiting members (4); The docking member (3) includes a docking rod (33) inserted in the center of the protective member (2), and the locking plate (51) is located outside the docking rod (33), one end of the docking rod (33) extends to the bottom of the protective member (2), and the other end is connected to the top cover (31) installed on the top of the protective member (2) through a spring; When the lower pressure plate (11) is pressed downward toward the top of the cylinder, the valve stem (61) corresponds to the docking rod (33) at the center of the storage tube (21) up and down, and the docking rod (33) is pressed upward, and the locking piece (51) sleeved on the outside of the docking rod (33) moves to the outside of the valve stem (61) under the blocking action of the limit member (4).

2. The valve lock clip assembly pressure plate device for an automatic deflection-correcting spring according to claim 1, characterized in that: The limiting groove (13) is divided into two parts that are interconnected. One part is a cylindrical slot hole, and the inner diameter of the slot hole is consistent with the outer diameter of the spring seat (63) at the top of the valve spring (62); the other part is a funnel-shaped guide groove, and the inner diameter of the guide groove is smaller at the top and larger at the bottom, and the end of the guide groove with the smallest inner diameter corresponds to the edge of the limiting groove (13).

3. The valve lock clip assembly pressure plate device for an automatic deflection-correcting spring according to claim 1, characterized in that: The top cover (31) is connected to a plug rod (32) on one side facing the docking rod (33), and the plug rod (32) is plugged into the end of the docking rod (33), and a spring connected between the docking rod (33) and the top cover (31) is sleeved on the outside of the plug rod (32); The outer diameter of the docking rod (33) is consistent with the outer diameter of the valve stem (61).

4. The valve lock clip assembly pressure plate device for an automatic deflection-correcting spring according to claim 3, characterized in that: The outer wall of the docking member (3) is provided with a plurality of reserved grooves, two in a group, and the two reserved grooves in the same group are symmetrically arranged on the docking member (3), the plurality of groups of reserved grooves are equidistantly distributed from top to bottom, and the spacing between two adjacent groups of reserved grooves is equal to the height of the locking plate (51); Wherein, an extrusion rod (34) is provided in the reserved groove, and one end of the extrusion rod (34) is hinged to the inner wall of the reserved groove, and the other end is expanded outward under the action of the arc-shaped spring piece (35) in the reserved groove; When the docking rod (33) moves upward, the extrusion rod (34) moves into the reserved groove under the extrusion action of the locking plate (51); When the docking rod (33) moves downward, the squeezing rod (34) is unfolded under the action of the arc-shaped spring piece (35) and fits with the clamping strip (52) inside the locking piece (51), driving the locking piece (51) to move downward.

5. The valve lock clip assembly pressure plate device of the automatic deflection-correcting spring according to claim 1, characterized in that: The limiting member (4) comprises a connecting seat (41) symmetrically arranged on the inner wall of the protective member (2), and a rotating shaft (44) is movably connected between two adjacent connecting seats (41), and a linking belt (42) is sleeved between the two corresponding rotating shafts (44) above and below; The outer wall of the linkage belt (42) is provided with an embedding groove (43), and the embedding groove (43) has the same shape as the outer wall of the locking plate (51).

6. The valve lock clip assembly pressure plate device for an automatic deflection-correcting spring according to claim 5, characterized in that: One end of the rotating shaft (44) passes through the connecting seat (41), and the end is connected to an anti-reverse gear (45) and corresponds to a tooth spring (46) on the connecting seat (41); The outer wall of the anti-reverse gear (45) is evenly distributed with latch teeth, and the free end of the latch tooth spring (46) is inserted into the gap between the latch teeth.

7. The valve lock clip assembly pressure plate device for an automatic deflection-correcting spring according to claim 1, characterized in that: Two mutually symmetrical connecting hooks (23) are provided at the bottom of the storage tube (21), and the connecting hooks (23) correspond to the notches in the mounting groove (14). When the storage tube (21) is fitted with the lower pressing plate (11), the connecting hooks (23) are located in the notches and connected to the lower pressing plate (11).

8. The valve lock clip assembly pressure plate device for an automatic deflection-correcting spring according to claim 1, characterized in that: The locking piece (51) corresponds to the extrusion rod (34) outside the docking rod (33), and the limiting member (4) corresponds to the gap between the two locking pieces (51) and is located between the two extrusion rods (34); The end of the guide cylinder (22) corresponds to the gap between the two limiting members (4).

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