Cylinder head for gas engine

Abstract

The present invention relates to the technical field of gas engines, and in particular to a cylinder head for a gas engine; the cylinder head comprises a cylinder head, a quick disassembly bolt and a positioning piece. The present invention can solve the following problems existing in the prior art in the process of disassembling and assembling the cylinder head: the cylinder head cannot be quickly disassembled and installed when a fault occurs; the cylinder head cannot dissipate heat better when the gas engine is working. The present invention aligns the threaded hole of the cylinder body with the positioning piece and inserts the positioning piece into the threaded hole, thereby realizing quick positioning of the connection between the cylinder head and the cylinder body, so that the cylinder head and the cylinder body do not need to be repeatedly moved to align with the threaded hole when being installed, thus saving the time required for installation; the present invention can increase the contact area of ​​the fluid through the shape and arrangement of the heat dissipation fins. When air flows through the heat dissipation fins, the heat will be transferred to the air and taken away, thereby reducing the temperature of the fins and the temperature of the cylinder head.

Description

Technical Field

[0001] The present invention relates to the technical field of gas engines, and in particular to a cylinder head for a gas engine. Background Art

[0002] A gas engine is a device that uses gas combustion to generate heat energy to drive a generator or mechanical equipment. It is a new engine technology developed on the basis of an internal combustion engine. The fuel used by a gas engine is mainly natural gas, and liquefied petroleum gas, coal gas, etc. can also be used. Most of the existing gas engines are modified from fuel engines. During use, the valves in the cylinder head often need to be repaired due to excessive temperature. During the maintenance of the existing cylinder head, the bolts need to be removed or tightened one by one when disassembling and installing the cylinder head and cylinder body, and the disassembly and installation process is slow.

[0003] However, there are usually some problems in the daily use of the gas engine cylinder head. With the development of science and technology, technicians in related fields have also made a lot of optimizations on a gas engine cylinder head to solve some problems that different consumer groups are concerned about. In order to make a more accurate comparison, a Chinese patent with publication number CN101397948A discloses a cylinder head; a cylinder head includes: a bottom wall portion; a peripheral wall portion, which defines an accommodating space for arranging the following components: a valve for opening and closing a combustion chamber, a rocker arm, a camshaft for driving the rocker arm, and a rocker shaft for supporting the rocker arm; a longitudinal wall portion; a transverse wall portion, which is integrally formed with the longitudinal wall portion and the peripheral wall portion; a camshaft supporting portion, which is formed on the transverse wall portion; a rocker shaft supporting portion, which is formed on the transverse wall portion in such a way that the height position of the rocker shaft is different from the height position of the camshaft; and a cover body bolt boss portion, which is formed on the bottom wall portion in such a way that it overlaps with the transverse wall portion in the height direction.

[0004] However, the above-mentioned gas engine cylinder head still has some shortcomings in actual use: 1. The existing gas engine cylinder head is often modified from the engine cylinder head, which is often easily damaged during work, so it often needs to be repaired. The above-mentioned prior art is connected by bolts. When the cylinder head fails, it takes a long time to turn the bolts one by one to disassemble it. The disassembly and installation process is relatively cumbersome and takes a lot of time to disassemble and assemble.

[0005] 2. The cylinder head needs to withstand a large amount of heat when the gas engine is working, and it is easy to be damaged when the temperature is too high. The existing technology usually has a water cooling pipe, but its cooling effect is poor, and the cylinder head still has the problem of over-high temperature during operation.

[0006] Therefore, under the above-stated viewpoint, the existing cylinder head still has room for improvement. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a cylinder head for a gas engine, comprising a cylinder head, wherein a plurality of quick-disassembly bolts for connecting the cylinder head and a cylinder body are installed at the upper end of the cylinder head;

[0008] The plurality of quick-disassembly bolts are arranged equidistantly along the length direction of the cylinder head, and the plurality of quick-disassembly bolts are divided into two rows and arranged symmetrically along the width direction of the cylinder head;

[0009] A positioning piece for quickly positioning and connecting the cylinder body is installed at the bottom of the quick disassembly and assembly bolt.

[0010] Preferably, the upper end of the cylinder head is symmetrically provided with two groups of bolt holes along its width direction, each group of bolt holes has a plurality of bolt holes and are equidistantly arranged along the length direction of the cylinder head, and the quick disassembly bolts are inserted into the bolt holes.

[0011] Preferably, the quick disassembly bolt comprises a bolt rod, and a plurality of groups of threaded blocks are installed on the outer wall of the bolt rod, and the plurality of groups of threaded blocks are arranged spirally along the outer wall of the bolt rod, and the threaded blocks of the same group are arranged equidistantly along the length direction of the bolt rod.

[0012] Preferably, the outer wall of the bolt rod is provided with a plurality of sliding holes, the sliding holes correspond to the positions of the threaded blocks, and the threaded blocks are inserted into the sliding holes on one side close to the bolt rod.

[0013] Preferably, a through groove is provided at the top end of the bolt rod, the sliding hole is connected to the through groove, a plurality of control disks arranged equidistantly are installed in the through groove along its length direction, a knob is installed at the top of the bolt rod, a transmission rod is connected to the bottom of the knob, and the plurality of control disks are all penetrated through the outer wall of the transmission rod.

[0014] Preferably, the plurality of threaded blocks in the same group are commonly connected to a sliding rod, and the upper ends of the plurality of control disks are provided with sliding grooves for the sliding rods to slide, the sliding grooves gradually extend outward from the center of the control disk, and the sliding grooves are arc-shaped grooves.

[0015] Preferably, the positioning member comprises a sleeve installed at the bottom of the bolt rod, a tension spring is installed in the sleeve at the bottom of the bolt rod, and a positioning block is installed on the side of the tension spring away from the bolt rod.

[0016] Preferably, the cylinder head is provided with cooling fins on both sides along the width direction.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. The present invention aligns the threaded hole of the cylinder body with the positioning piece, and inserts the positioning piece into the threaded hole. The cylinder head slides along the bolt rod and is placed on the upper end of the cylinder body, thereby realizing rapid positioning of the connection between the cylinder head and the cylinder body. When the cylinder head and the cylinder body are installed, there is no need to repeatedly move and align the threaded hole, thus saving the time required for installation.

[0019] 2. The present invention can increase the contact area of ​​the fluid through the shape and arrangement of the cooling fins, thereby improving the convection effect. When air flows through the cooling fins, the heat will be transferred to the air and taken away, thereby reducing the fin temperature and the cylinder head temperature.

[0020] 3. The present invention can quickly cool down the cylinder head through the cooperation of cooling holes and heat dissipation fins, and cool down the coolant in the cooling holes through the heat dissipation fins, so as to continuously cool down the cylinder head and cylinder block, greatly reducing the probability of failure of the cylinder head and cylinder block due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 1 is a first structural schematic diagram of the cylinder head of the present invention.

[0024] Figure 3 It is a first structural schematic diagram of the quick disassembly and assembly bolt of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the positioning member of the present invention.

[0026] Figure 5 1 is a second structural schematic diagram of the cylinder head of the present invention.

[0027] Figure 6 It is a second structural schematic diagram of the quick disassembly and assembly bolt of the present invention.

[0028] Figure 7 The present invention Figure 6 A partial enlarged view of point B.

[0029] Figure 8 It is a third structural schematic diagram of the quick disassembly and assembly bolt of the present invention.

[0030] Fig. 9 It is a schematic diagram of the structure between the cooling holes and the heat dissipation fins of the present invention.

[0031] Fig.10 It is a first structural schematic diagram of the connecting hole of the present invention.

[0032] Fig.11 It is a first structural schematic diagram of the connecting piece of the present invention.

[0033] Fig.12 It is a second structural schematic diagram of the connecting piece of the present invention.

[0034] In the figure, 1, cylinder head; 11, bolt hole; 12, cooling fin; 2, quick disassembly bolt; 21, bolt rod; 22, threaded block; 23, sliding hole; 24, through groove; 25, control panel; 26, knob; 27, transmission rod; 28, sliding rod; 29, sliding groove; 3, positioning piece; 31, sleeve; 32, tensioning spring; 33, positioning block; 51, pull rod; 52, collar; 53, hinge groove; 54, rotating rod; 55, telescopic rod; 56, cross bar; 57, linkage rod; 61, cooling hole; 62, connecting hole; 63, sliding groove; 64, partition; 65, reset spring; 66, triangle block; 67, connecting piece; 68, spring frame; 69, trigger spring; 70, base; 71, connecting rod; 72, extrusion block; 73, flow hole; 74, snap ring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-Figure 12 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0036] The embodiment of the present application discloses a cylinder head, which explains that the cylinder head is mainly used in the process of disassembling and assembling the cylinder head, and can avoid the problems of cumbersome disassembly and installation of the cylinder head and slow disassembly and installation speed during the disassembly and assembly process in terms of technical effect; especially during the installation of the cylinder head and the cylinder block, it is possible to simultaneously control the synchronous disassembly of multiple quick disassembly and assembly bolts, further accelerating the disassembly speed of the cylinder head and the cylinder block; further, the cylinder head can also transfer heat to the air through the cooling fins and take it away, thereby reducing the fin temperature and the temperature of the cylinder head.

[0037] Embodiment 1:

[0038] Reference Figure 1 As shown, a cylinder head for a gas engine includes a cylinder head 1, and a plurality of quick-disassembly bolts 2 for connecting the cylinder head 1 and a cylinder body are installed on the upper end of the cylinder head 1. The plurality of quick-disassembly bolts 2 are arranged equidistantly along the length direction of the cylinder head 1, and the plurality of quick-disassembly bolts 2 are divided into two rows and arranged symmetrically along the width direction of the cylinder head 1. A positioning member 3 for quickly positioning and connecting the cylinder body is installed at the bottom of the quick-disassembly bolt 2.

[0039] During the specific implementation process, the cylinder head 1 is moved to the upper end of the cylinder block, and then the positioning member 3 is aligned with the threaded hole of the cylinder block, and the positioning member 3 is inserted into the threaded hole. The cylinder head 1 is slid along the bolt rod 21 and placed on the upper end of the cylinder block, thereby realizing rapid positioning of the connection between the cylinder head 1 and the cylinder block, so that the cylinder head 1 does not need to be repeatedly moved and aligned with the threaded hole when installing the cylinder head 1 and the cylinder block, thereby saving the time required for installation.

[0040] Then fully insert the quick-disassembly bolt 2 into the threaded hole at the upper end of the cylinder block, press the quick-disassembly bolt 2 to shrink the positioning piece 3, and then twist the top of the quick-disassembly bolt 2 to lock the quick-disassembly bolt 2. Use a tool to twist the quick-disassembly bolt 2 to completely lock it with the cylinder head 1 and the cylinder block, so as to quickly install the cylinder head 1 and the cylinder block, and avoid slowly twisting the bolt to lock it with the threaded hole.

[0041] Reference Figure 2 and Figure 3 As shown, in order to quickly realize installation and disassembly between the cylinder head 1 and the cylinder block, based on this, a quick disassembly bolt 2 is provided in the present embodiment; specifically, two groups of bolt holes 11 are symmetrically arranged along the width direction of the cylinder head 1 at the upper end, each group of bolt holes 11 has a plurality of bolt holes and are equidistantly arranged along the length direction of the cylinder head 1, and the quick disassembly bolt 2 is installed in the bolt hole 11, and the quick disassembly bolt 2 includes a bolt rod 21, and a plurality of groups of thread blocks 22 are installed on the outer wall of the bolt rod 21, and the plurality of groups of thread blocks 22 are spirally arranged along the outer wall of the bolt rod 21, and the thread blocks 22 of the same group are equidistantly arranged along the length direction of the bolt rod 21, and a plurality of sliding holes 23 are opened on the outer wall of the bolt rod 21, and the sliding holes 23 correspond to the positions of the thread blocks 22, and the thread blocks 22 are penetrated into the sliding holes 23 close to the side of the bolt rod 21.

[0042] A through groove 24 is provided at the top of the bolt rod 21, and the sliding hole 23 is connected to the through groove 24. A plurality of control discs 25 arranged equidistantly are installed in the through groove 24 along its length direction. A knob 26 is installed at the top of the bolt rod 21, and a transmission rod 27 is connected to the bottom of the knob 26. The plurality of control discs 25 are all penetrated through the outer wall of the transmission rod 27. The plurality of threaded blocks 22 in the same group are commonly connected to a sliding rod 28. The upper ends of the plurality of control discs 25 are provided with sliding grooves 29 for the sliding rods 28 to slide. The sliding grooves 29 gradually extend outward from the center of the control disc 25, and the sliding grooves are arc-shaped grooves.

[0043] In the specific implementation process, when the cylinder head 1 and the cylinder block are connected, after the positioning member 3 completes the positioning, the knob 26 is turned, and then the transmission rod 27 is driven to rotate by the knob 26, and then the transmission rod 27 drives multiple control disks 25 to rotate synchronously. During the rotation of the control disk 25, multiple sliding rods 28 are driven to move to the side away from the transmission rod 27 under the restriction of the sliding groove 29, and the sliding rod 28 drives multiple threaded blocks 22 to move to the side away from the transmission rod 27, and the threaded block 22 slides along the sliding hole 23 and slides out of the bolt rod 21. At this time, the threaded block 22 forms a threaded match with the threaded holes in the cylinder head 1 and the cylinder block, and then the top of the bolt column is screwed by a tool, so that the threaded block 22 is completely locked with the threaded holes in the cylinder head 1 and the cylinder block, thereby realizing the rapid installation between the cylinder head 1 and the cylinder block, and there is no need to screw the bolts little by little to install and lock the cylinder head 1 and the cylinder block.

[0044] When the gas engine fails and needs to be repaired, it is only necessary to turn the knob 26 in the opposite direction so that the knob 26 drives the transmission rod 27 to reverse, and the transmission rod 27 drives multiple sliding rods 28 to move toward the side close to the transmission rod 27 through the control panel 25. The sliding rod 28 drives multiple threaded blocks 22 to slide in the through groove 24 in the sliding hole 23, and then the bolt rod 21 loses threaded cooperation with the threaded holes in the cylinder head 1 and the cylinder body. Then, the cylinder head 1 can be lifted to realize the rapid disassembly of the cylinder head 1 and the cylinder body, thereby improving the disassembly speed of the cylinder head 1 and the cylinder body.

[0045] Reference Figure 4 As shown, in order to enable the cylinder head 1 and the cylinder block to be quickly connected during the installation process, a positioning member 3 is provided in the present embodiment; specifically, the positioning member 3 includes a sleeve 31 installed at the bottom of the bolt rod 21, and a tensioning spring 32 is installed in the sleeve 31 at the bottom of the bolt rod 21, and a positioning block 33 is installed on the side of the tensioning spring 32 away from the bolt rod 21.

[0046] In the specific implementation process, when the cylinder block and the cylinder head 1 are installed, the positioning block 33 is inserted into the threaded hole at the upper end of the cylinder block. After the positioning piece 3 is inserted, the cylinder head 1 is slowly placed along the outer wall of the bolt rod 21 to the upper end of the cylinder block, so that the cylinder head 1 and the cylinder block can be quickly positioned. There is no need to repeatedly move the cylinder head 1 during the installation process to align the threaded holes between the cylinder head 1 and the cylinder block.

[0047] When the bolt rod 21 is pressed, the tensioning spring 32 adaptively contracts and the positioning block 33 slides into the sleeve 31. When the bolt rod 21 loses its fit with the threaded holes in the cylinder head 1 and the cylinder body, the tensioning spring 32 adaptively rebounds, driving the positioning block 33 to pop out of the sleeve 31 and the bolt rod 21 to pop out, thereby facilitating the removal of the bolt rod 21 from the upper end of the cylinder head 1.

[0048] Reference Figure 5 As shown, although a common cylinder head 1 is provided with a cooling channel for circulating coolant, overtemperature may still occur during operation. Based on this, in this embodiment, cooling fins 12 are provided for cooling the cylinder head 1 during operation; specifically, cooling fins 12 are installed on both sides of the cylinder head 1 along the width direction.

[0049] When the cylinder head 1 and the cylinder block are working, the heat generated will be transferred along the shell of the cylinder head 1 to the cooling fins 12. When the heat is conducted to the surface of the cooling fins 12, the air begins to flow under the change of temperature. The shape and arrangement of the cooling fins 12 can increase the contact area of ​​the air, thereby improving the convection effect. When the air flows through the cooling fins 12, the cold air takes away the heat on the cooling fins, thereby reducing the fin temperature and the temperature of the cylinder head 1.

[0050] Embodiment 2:

[0051] Reference Figure 6 , Figure 7 and Figure 8 As shown, on the basis of Example 1, in order to enable multiple quick-disassembly bolts 2 to be disassembled and assembled at the same time, the quick-disassembly bolts 2 are improved in the present embodiment. Based on this, in the present embodiment, a pull rod 51 is passed through the bottom of the knob 26, a collar 52 is sleeved on the bottom of the outer wall of the pull rod 51, and a plurality of hinge grooves 53 are arranged on the side wall of the collar 52 and are equidistantly distributed along the ring 52. A rotating rod 54 for connecting the collar 52 and the sliding rod 28 is hinged in each of the hinge grooves 53. A telescopic rod 55 is connected to the hinged part of the rotating rod 54 away from the hinge groove 53 and the sliding rod 28. A cross bar 56 for fixing the rotation of the transmission rod 27 is passed through the side wall of the rotating rod 54. Both ends of the cross bar 56 are connected to the inner wall of the through groove 24. Linkage rods 57 are connected to the tops of a row of pull rods 51 along the length direction of the cylinder head 1.

[0052] During the specific implementation process, the linkage rod 57 is pulled, and the linkage rod 57 drives the multiple pull rods 51 to move upward, and the pull rod 51 drives the collar 52 to move synchronously. The collar 52 drives the multiple rotating rods 54 to rotate under the restriction of the cross rod 56, and drives the sliding rod 28 to move toward the side close to the axis of the bolt rod 21 during the rotation process. The telescopic rod 55 adaptively retracts and retracts, and the sliding rod 28 drives the threaded block 22 to retract into the through groove 24, thereby realizing the simultaneous control of the synchronous disassembly of multiple quick-disassembly bolts 2, further accelerating the disassembly speed of the cylinder head 1 and the cylinder body.

[0053] When installing the cylinder head 1 and the cylinder block, grasp the linkage rod 57 and press it downward. The linkage rod 57 drives the multiple pull rods 51 to move downward, and the pull rod 51 drives the collar 52 to move synchronously. The collar 52 drives the multiple rotating rods 54 to rotate under the restriction of the cross rod 56, and drives the sliding rod 28 to move to the side away from the axis of the bolt rod 21 during the rotation. The telescopic rod 55 adaptively retracts and retracts, and the sliding rod 28 drives the threaded block 22 to slide out along the sliding hole 23, thereby realizing the simultaneous control of the synchronous installation of multiple quick-disassembly and assembly bolts 2, further accelerating the installation speed of the cylinder head 1 and the cylinder block.

[0054] Embodiment three:

[0055] Reference Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, on the basis of the second embodiment, in order to enable the cylinder head 1 to better achieve heat dissipation during operation and avoid damage caused by excessive temperature, based on this, in this embodiment, cooling holes 61 for circulating coolant are provided inside the cylinder head 1 and the cylinder block, and connecting holes 62 are provided on both side walls in the length direction of the heat dissipation fins 12, and the cooling holes 61 are connected with the connecting holes 62. The inner wall of the cooling hole 61 of the cylinder head 1 close to the cylinder block has two sliding grooves 63, and partitions 64 are installed on the opposite sides of the two sliding grooves 63. Reset springs 65 are installed on the opposite sides of the two partitions 64. The reset spring 65 is connected to the side of the sliding groove 63 away from the cooling hole 61, and the side of the partition 64 close to the cylinder block is connected to a triangular block 66; the cooling hole 61 at the upper end of the cylinder block is connected to a connecting piece 67, and a spring frame 68 is installed on the side wall of the cooling hole 61. The upper end of the spring frame 68 is connected to a trigger spring 69, and the trigger spring 69 is connected to the connecting piece 67.

[0056] The connecting piece 67 includes a base 70 installed on the upper end of the trigger spring 69, the upper end of the base 70 is connected to a connecting rod 71, the upper end of the connecting rod 71 is installed with an extrusion block 72, the upper end of the extrusion block 72 is provided with a flow hole 73 that penetrates the side wall of the connecting rod 71, and the inner wall of the cooling hole 61 is installed with a clamping ring 74 located at the upper end of the base 70, and the inner wall of the clamping ring 74 is in contact with the outer wall of the connecting rod 71.

[0057] In the specific implementation process, when the cylinder head 1 is connected to the cylinder body, the extrusion block 72 squeezes the triangular block 66, and the triangular block 66 drives the partition 64 to slide into the sliding groove 63, and the reset spring 65 automatically contracts. When the partition 64 contracts to the limit by the reset spring 65, the partition 64 stops sliding. The triangular block 66 drives the connecting rod 71 and the base 70 to move downward because the partition 64 cannot contract again, triggering the spring 69 to contract adaptively, and then the coolant in the cooling hole 61 of the cylinder head 1 flows out from the gap between the two partitions 64, and then enters through the flow hole 73 at the top of the extrusion block 72 and flows from the side wall of the connecting rod 71 The coolant flows out through the flow hole 73 and enters the cylinder body. At the same time, when the cylinder head 1 and the cylinder body are working, the coolant flows in the cooling hole 61 and absorbs the heat between the cylinder head 1 and the cylinder body, thereby cooling the cylinder head 1 and the cylinder body. When the coolant flows into the connecting hole 62, the heat in the coolant is transferred to the cooling fins 12. Then the cooling fins 12 cool themselves down through the air flow, and at the same time cool the liquid flowing into the connecting hole 62, further improving the cooling effect on the cylinder head 1 and the cylinder body, so that they are at a stable temperature during operation to prevent them from being damaged by excessive temperature.

[0058] When the cylinder head 1 is disassembled from the cylinder block, the trigger spring 69 drives the base 70, the connecting rod 71 and the extrusion block 72 to move upward synchronously, so that the upper end of the base 70 fits with the bottom of the retaining ring 74, so that the coolant in the cooling hole 61 in the cylinder block cannot flow out. At the same time, after losing the extrusion of the extrusion block 72, the two partitions 64 are pushed by the return spring 65, move toward each other along the sliding groove 63, and drive the triangular block 66 to move synchronously. The two partitions 64 fit together to form a seal, so that the coolant in the cooling pipe in the cylinder head 1 cannot flow out, thereby realizing that the cooling pipe can be automatically closed when the cylinder head 1 is disassembled from the cylinder block to prevent the coolant from flowing out.

[0059] During operation: The first step is to install the cylinder head 1 and the cylinder block. When installing the cylinder block and the cylinder head 1, the positioning block 33 is inserted into the threaded hole at the upper end of the cylinder block. After the positioning piece 3 is inserted, the cylinder head 1 is slowly placed along the outer wall of the bolt rod 21 to the upper end of the cylinder block. This can achieve rapid positioning of the cylinder head 1 and the cylinder block. There is no need to repeatedly move the cylinder head 1 during the installation process to align the threaded holes between the cylinder head 1 and the cylinder block.

[0060] Step 2: After the positioning member 3 has completed positioning, the knob 26 is turned, and then the transmission rod 27 is driven to rotate through the knob 26, and then the transmission rod 27 drives multiple control disks 25 to rotate synchronously. During the rotation of the control disk 25, multiple sliding rods 28 are driven to move to the side away from the transmission rod 27 under the restriction of the sliding groove 29, and the sliding rod 28 drives multiple threaded blocks 22 to move to the side away from the transmission rod 27. The threaded block 22 slides along the sliding hole 23 and slides out of the bolt rod 21. At this time, the threaded block 22 forms a threaded fit with the threaded holes in the cylinder head 1 and the cylinder body. Then, the top of the bolt column is screwed by a tool to completely lock the threaded block 22 with the threaded holes in the cylinder head 1 and the cylinder body, thereby realizing rapid installation between the cylinder head 1 and the cylinder body, without the need to screw the bolts little by little to install and lock the cylinder head 1 and the cylinder body.

[0061] Step 3: When the gas engine fails and needs to be repaired, it is only necessary to turn the knob 26 in the opposite direction so that the knob 26 drives the transmission rod 27 to reverse, and the transmission rod 27 drives the plurality of sliding rods 28 to move toward the side close to the transmission rod 27 through the control panel 25, and the sliding rod 28 drives the plurality of threaded blocks 22 to slide in the through groove 24 in the sliding hole 23, and then the bolt rod 21 loses threaded cooperation with the threaded holes in the cylinder head 1 and the cylinder body, and then the cylinder head 1 is lifted to realize the rapid disassembly of the cylinder head 1 and the cylinder body, thereby improving the disassembly speed of the cylinder head 1 and the cylinder body.

[0062] When the cylinder head 1 is connected to the cylinder body, the extrusion block 72 squeezes the triangular block 66, and the triangular block 66 drives the partition 64 to slide into the sliding groove 63, and the return spring 65 automatically contracts. When the partition 64 contracts to the limit, the partition 64 stops sliding. The triangular block 66 cannot contract again because the partition 64 can move downward, thereby triggering the spring 69 to contract adaptively. Then, the coolant in the cylinder head cooling hole 61 flows out from the gap between the two partitions 64, and then enters through the flow hole 73 at the top of the extrusion block 72 and flows through the flow hole 73 on the side wall of the connecting rod 71. 3 flows out and enters the cylinder body. At the same time, when the cylinder head 1 and the cylinder body are working, the coolant flows in the cooling hole 61 and absorbs the heat between the cylinder head 1 and the cylinder body, so as to cool down the cylinder head 1 and the cylinder body. When the coolant flows into the connecting hole 62, the heat in the coolant is transferred to the heat dissipation fins 12. Then the heat dissipation fins 12 cool it down by itself through the air flow, and at the same time cool down the liquid flowing into the connecting hole 62, so as to further improve the cooling effect on the cylinder head 1 and the cylinder body, so that they are at a stable temperature during the working process, and prevent them from being damaged by excessive temperature.

[0063] Step 4: When the bolt rod 21 is pressed, the tensioning spring 32 adaptively contracts, and the positioning block 33 slides into the sleeve 31. When the bolt rod 21 loses its fit with the threaded holes in the cylinder head 1 and the cylinder body, the tensioning spring 32 adaptively rebounds, driving the positioning block 33 to pop out of the sleeve 31, and driving the bolt rod 21 to pop out, thereby facilitating the removal of the bolt rod 21 from the upper end of the cylinder head 1.

[0064] When the cylinder head 1 is disassembled from the cylinder block, the trigger spring 69 drives the base 70, the connecting rod 71 and the extrusion block 72 to move upward synchronously, so that the upper end of the base 70 fits with the bottom of the retaining ring 74, so that the coolant in the cooling hole 61 in the cylinder block cannot flow out. At the same time, after losing the extrusion of the extrusion block 72, the two partitions 64 are pushed by the return spring 65, move toward each other along the sliding groove 63, and drive the triangular block 66 to move synchronously. The two partitions 64 fit together to form a seal, so that the coolant in the cooling pipe in the cylinder head 1 cannot flow out, thereby realizing that the cooling pipe can be automatically closed when the cylinder head 1 is disassembled from the cylinder block to prevent the coolant from flowing out.

[0065] Step 5: When the cylinder head 1 and the cylinder block are working, the heat generated will be transferred along the shell of the cylinder head 1 to the cooling fins 12. When the heat is conducted to the surface of the cooling fins 12, the air begins to flow under the change of temperature. The shape and arrangement of the cooling fins 12 can increase the contact area of ​​the fluid, thereby improving the convection effect. When the air flows through the cooling fins 12, the heat will be transferred to the air and taken away, thereby reducing the fin temperature and reducing the temperature of the cylinder head 1.

[0066] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cylinder head for a gas engine, comprising a cylinder head (1), characterized in that: The upper end of the cylinder head (1) is provided with a plurality of quick-disassembly bolts (2) for connecting the cylinder head (1) and the cylinder body; the plurality of quick-disassembly bolts (2) are arranged equidistantly along the length direction of the cylinder head (1), and the plurality of quick-disassembly bolts (2) are arranged symmetrically in two rows along the width direction of the cylinder head (1); the bottom of the quick-disassembly bolts (2) is provided with a positioning member (3) for quickly positioning and connecting the cylinder body; The quick disassembly bolt (2) comprises a bolt rod (21), the outer wall of the bolt rod (21) is provided with a plurality of groups of threaded blocks (22), and the plurality of groups of threaded blocks (22) are arranged spirally along the outer wall of the bolt rod (21), and the threaded blocks (22) of the same group are arranged equidistantly along the length direction of the bolt rod (21); The outer wall of the bolt rod (21) is provided with a plurality of sliding holes (23), the sliding holes (23) corresponding to the positions of the threaded blocks (22), and the threaded blocks (22) are arranged in the sliding holes (23) on a side close to the bolt rod (21); The cylinder head (1) is provided with cooling fins (12) on both sides along the width direction; The cylinder head (1) and the cylinder block are both provided with cooling holes (61) for circulating coolant, and the cooling fins (12) are provided with connecting holes (62) on both side walls in the length direction, and the cooling holes (61) are connected with the connecting holes (62). The cooling hole (61) of the cylinder head (1) is provided with two sliding grooves (63) on the inner wall of the side close to the cylinder block, and the two sliding grooves (63) are provided with partitions (64) on the opposite sides, and the two partitions (64) are provided with return springs (65) on the opposite sides, and the return springs (65) are connected to the side of the sliding groove (63) away from the cooling hole (61), and the partition (64) is connected to the side close to the cylinder block with a triangular block (66), and the cooling hole (61) at the upper end of the cylinder block is connected with a connecting piece (67), and a spring frame (68) is provided on the side wall of the cooling hole (61), and the upper end of the spring frame (68) is connected with a trigger spring (69), and the trigger spring (69) is connected to the connecting piece (67); The connecting member (67) comprises a base (70) mounted on the upper end of the trigger spring (69); the upper end of the base (70) is connected to a connecting rod (71); the upper end of the connecting rod (71) is mounted with an extrusion block (72); the upper end of the extrusion block (72) is provided with a flow hole (73) penetrating the side wall of the connecting rod (71); the inner wall of the cooling hole (61) is mounted with a clamping ring (74) located at the upper end of the base (70); the inner wall of the clamping ring (74) is in contact with the outer wall of the connecting rod (71).

2. A cylinder head for a gas engine according to claim 1, characterized in that: The upper end of the cylinder head (1) is symmetrically provided with two groups of bolt holes (11) along its width direction, each group of bolt holes (11) has a plurality of bolt holes and are arranged equidistantly along the length direction of the cylinder head (1), and the quick disassembly bolts (2) are inserted into the bolt holes (11).

3. A cylinder head for a gas engine according to claim 1, characterized in that: A through slot (24) is formed at the top of the bolt rod (21), the sliding hole (23) is connected to the through slot (24), a plurality of control discs (25) are installed in the through slot (24) along its length direction, a knob (26) is installed at the top of the bolt rod (21), a transmission rod (27) is connected to the bottom of the knob (26), and the plurality of control discs (25) are all inserted through the outer wall of the transmission rod (27).

4. A cylinder head for a gas engine according to claim 3, characterized in that: The plurality of threaded blocks (22) in the same group are commonly connected to a sliding rod (28), and the upper ends of the plurality of control plates (25) are each provided with a sliding groove (29) for the sliding rod (28) to slide, the sliding groove (29) gradually extending outward from the center of the control plate (25), and the sliding groove (29) is an arc-shaped groove.

5. A cylinder head for a gas engine according to claim 1, characterized in that: The positioning member (3) comprises a sleeve (31) mounted at the bottom of the bolt rod (21); a tension spring (32) is mounted in the sleeve (31) at the bottom of the bolt rod (21); a positioning block (33) is mounted on the side of the tension spring (32) away from the bolt rod (21).

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