Gun head structure of anti-explosion charging gun
By designing the nozzle structure of the explosion-proof filling gun, and utilizing the combination of the outer and inner convex arc surfaces and the cross support structure, the problem of insufficient sealing and clamping force was solved, thereby improving sealing performance and material purity.
Patent Information
- Application Number
- CN202423323837.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing charging gun head structure is prone to insufficient sealing and clamping force, which leads to friction damage to the inner wall of the gun barrel and debris entering the material, causing contamination. In addition, leakage is easy when the valve block comes into contact with the gun barrel.
A gun head structure for an explosion-proof filling gun was designed. The outer convex arc surface of the valve block and the inner convex arc surface of the gun barrel are matched to form a tight clamping force. The coaxiality of the valve block and the gun mouth is ensured by a cross support structure to avoid friction between the slider and the inner wall of the gun barrel. The material is guided by an inclined guide groove.
It improves sealing performance, avoids friction damage to the inner wall of the barrel and material contamination, and ensures the purity and sealing of the material.
Smart Images
Figure CN223635355U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of filling machine, in particular to a gun head structure of explosion -proof filling gun for filling machine. BACKGROUND
[0002] Filling gun is the structural member that filling equipment must use, the rear end of the gun head structure of existing filling gun is connected through connecting rod, and the gun head structure forms a free end, and a guide structure is needed to support and guide in the gun barrel of the filling gun, the edge of the existing guide structure is in plane right angle shape, and in the process of sliding friction with the gun barrel guide, friction damage can be brought to the inner wall of the gun barrel, and the debris falling off by friction can also enter the filling barrel along with the material liquid.
[0003] Meanwhile, the valve block of the gun head part of the existing filling gun is in contact with the end inner taper surface of the gun barrel through its own conical surface, and the pressure after the contact of the two is equal in the axial direction, so that sealing leakage is easily caused. CONTENT OF THE UTILITY MODEL
[0004] The utility model embodiment solves the technical problem that the gun head structure of explosion -proof filling gun is provided, and the problem of small sealing compression force of the existing filling gun and easy gun barrel inner wall friction is solved.
[0005] In order to solve the above technical problem, the utility model provides a gun head structure of explosion -proof filling gun, including gun barrel, valve rod, valve block, connecting seat and drainage seat, wherein the valve rod is located in the gun barrel and is arranged coaxially with the gun barrel;The bottom of the valve rod is fixedly connected with the top of the connecting seat, and the connecting seat and the drainage seat clamp and connect the valve block;Wherein the size of the connecting seat is less than the inner diameter of the gun barrel, the valve block is in the shape of a circular truncated cone, the upper size is less than the inner diameter of the gun barrel, the lower size is greater than the inner diameter of the gun barrel, and the outer convex arc surface structure gradually increasing from top to bottom is arranged in the lower part of the valve block.
[0006] The valve block includes the conical surface part of the top, the straight cylinder part, the outer convex arc surface structure and the cutoff part, and the outer diameter size of the valve block is formed in the increasing trend by the conical surface part, the straight cylinder part, the outer convex arc surface structure and the cutoff part.
[0007] The inner wall of the gun port of the gun barrel is in the inner convex arc surface structure gradually increasing from top to bottom, when the valve block is locked with the gun port, the bottom of the inner convex arc surface structure is connected with the cutoff part.
[0008] The inner convex arc surface structure and the outer convex arc surface structure form extrusion connection.
[0009] The connecting seat is a conical structure, and step notches are formed on both sides of the connecting seat respectively, and a one-character structure is formed between the two step notches.
[0010] The drainage seat is an inverted conical structure, and step notches are formed on both sides of the drainage seat respectively, and a one-character structure is formed between the two step notches.
[0011] The valve rod is provided with a first sliding block and a second sliding block, the first sliding block and the second sliding block are located at two positions with different heights on the valve rod and are close to the position of the barrel outlet, the first sliding block and the second sliding block are horizontally installed, and the first sliding block and the second sliding block are vertically arranged in a cross shape in space.
[0012] Both ends of the first sliding block and the second sliding block are provided with arc surfaces, and the curvature of the arc surfaces is the same as the curvature of the inner wall of the barrel, so that both ends of the first sliding block can form arc surface contact with the inner wall of the barrel.
[0013] The circumference of the valve block is also provided with a plurality of inclined flow guide grooves, the inclined direction and the inclination angle of each flow guide groove are the same, and the flow guide grooves extend from the conical surface part to the straight cylinder part, and the depth of the flow guide grooves gradually decreases.
[0014] The barrel head structure of the explosion-proof charging gun can cooperate with the outer convex arc surface structure of the valve block and the inner convex arc surface structure of the barrel to form a tight compression force, and the cross support structure formed by the two sliding blocks can ensure the coaxiality of the valve block and the barrel mouth and avoid the friction between the sliding block and the inner wall of the barrel. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structure schematic view of the barrel head structure of the explosion-proof charging gun in a closed state.
[0016] Figure 2 It is a structure schematic view of the barrel head structure of the explosion-proof charging gun in a half-open state.
[0017] Figure 3 It is a structure schematic view of the barrel head structure of the explosion-proof charging gun in an open state.
[0018] Figure 4 It is a three-dimensional structure schematic view of the barrel head structure of the explosion-proof charging gun.
[0019] In the figure:
[0020] 10, barrel; 11, inner convex arc surface structure;
[0021] 20, valve rod; 21, first sliding block; 22, second sliding block;
[0022] 30, valve block; 31, conical surface part; 32, straight cylinder part; 33, convex arc surface structure; 34, cutoff part; 35, flow guide groove;
[0023] 40, connecting seat;
[0024] 50, flow guide seat. DETAILED DESCRIPTION
[0025] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific details set forth herein without departing from the scope of the present application. It is therefore contemplated that the present application is not limited to the specific embodiments disclosed in the following description.
[0026] As shown in Figures 1-4 The present application provides a gun head structure of an explosion-proof filling gun, which comprises a barrel 10, a valve rod 20, a valve block 30, a connecting seat 40 and a flow guide seat 50. The valve rod 20 is arranged coaxially with the barrel 10. The bottom of the valve rod 20 is fixedly connected with the top of the connecting seat 40. The connecting seat 40 and the flow guide seat 50 clamp and connect the valve block 30. The size of the connecting seat 40 is smaller than the inner diameter of the barrel 10. The valve block 30 is in the shape of a circular truncated cone, the size of the upper part of which is smaller than the inner diameter of the barrel 10, and the size of the lower part of which is larger than the inner diameter of the barrel 10. A convex arc surface structure 33 is arranged on the lower part of the valve block 30, which gradually increases from top to bottom.
[0027] The gun head structure of the explosion-proof filling gun provided by the present application is matched with the barrel 10 through the convex arc surface structure 33. When the explosion-proof filling gun is in a closed state, the convex arc surface structure 33 is extruded by the inner convex arc surface structure of the barrel 10, so that a strong sealing force is formed, thereby ensuring the sealing property of the explosion-proof filling gun.
[0028] The valve block 30 includes a top conical surface part 31, a straight cylinder part 32, an outer convex arc structure 33 and a stop part 34, and the outer diameter of the valve block 30 is gradually increased by the conical surface part 31, the straight cylinder part 32, the outer convex arc structure 33 and the stop part 34. The upper part of the conical surface part 31 is connected with the flow guide base 40, and the top part of the conical surface part 31 is matched with the bottom part of the flow guide base 40. The overall size of the conical surface part 31 is smaller than the inner diameter of the barrel 10, so that the conical surface part 31 can guide when colliding with the barrel 10, especially the conical surface part 31 is connected with the straight cylinder part 32, so that the straight cylinder part 32 can smoothly enter the barrel 10. The lower part of the straight cylinder part is the outer convex arc structure 33, and the overall diameter of the outer convex arc structure 33 is larger than the diameter of the straight cylinder part 32, so that the inner convex arc structure 11 of the barrel can extrude the outer convex arc structure 33. The lower part of the outer convex arc structure 33 is the stop part 34, which can form an end surface abutment with the barrel 10, and has a sealing effect.
[0029] A plurality of inclined flow guide grooves 35 are arranged on the circumference of the valve block 30, the inclination direction and angle of each flow guide groove 35 are the same, and the flow guide grooves extend from the conical surface part 31 to the straight cylinder part 32, and the depth of the flow guide grooves gradually decreases. The flow guide grooves 35 can guide the material, the width and depth of the flow guide grooves 35 gradually decrease from top to bottom, and the top groove bottom of the flow guide grooves 35 is matched with the inclined surface of the flow guide base 40, so that the material passing through the flow guide base 40 can directly enter the flow guide grooves 35.
[0030] The inner wall of the barrel 10 is an inner convex arc structure 11 with gradually increasing diameter from top to bottom, and when the valve block 30 is locked with the barrel, the bottom of the inner convex arc structure 11 is connected with the stop part 34.
[0031] The inner convex arc structure 11 is extruded and connected with the outer convex arc structure 33.
[0032] The connecting base 40 is a conical structure, and step notches are formed on both sides of the connecting base 40, and a one-letter structure is formed between the two step notches.
[0033] The flow guide base 50 is a reverse conical structure, and step notches are formed on both sides of the flow guide base 50, and a one-letter structure is formed between the two step notches.
[0034] The valve rod 20 is provided with a first sliding block 21 and a second sliding block 22, the first sliding block 21 and the second sliding block 22 are located at two positions with different heights on the valve rod 20 and are close to the position of the barrel outlet 10, the first sliding block 21 and the second sliding block 22 are horizontally installed, and the first sliding block 21 and the second sliding block 22 are vertically arranged in a cross shape in space. Each sliding block 21 can adopt a split structure, corresponding to the installation position of the sliding block, the valve rod 20 can be processed into a horizontal through hole, and the sliding block of the split structure is inserted into the through hole and then locked and connected.
[0035] Each sliding block can also adopt a two-section structure and be connected with the valve rod through threads.
[0036] The two ends of the first sliding block 21 and the second sliding block 22 are respectively provided with arc surfaces, and the curvature of the arc surfaces is the same as the curvature of the inner wall of the barrel 10, so that the two ends of the first sliding block 21 can form arc surface contact with the inner wall of the barrel 10.
[0037] The sliding blocks can also be three, connected with the valve rod through threaded connection, and the three sliding blocks form an included angle of 120 degrees with each other; at this time, the three sliding blocks can be installed on the same horizontal plane or different horizontal planes.
[0038] The barrel head structure of the explosion-proof filling gun can cooperate with the inner convex arc surface structure 11 of the barrel 10 through the outer convex arc surface structure 33 of the valve block 30, form a tight compression force, form a cross support structure through the two sliding blocks, thereby ensuring the coaxiality of the valve block 30 and the barrel, and avoiding the friction between the sliding block and the inner wall of the barrel 10.
[0039] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.
[0040] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A gun head structure of an explosion-proof charging gun, comprising a gun barrel, a valve rod, a valve block, a connecting seat and a flow guide seat, characterized in that, The valve rod is arranged in the barrel coaxially, the bottom of the valve rod is fixedly connected with the top of the connecting seat, the connecting seat and the flow guide seat clamp and connect the valve block, the size of the connecting seat is smaller than the inner diameter of the barrel, the valve block is a circular truncated cone shape with the upper part smaller than the lower part, the size of the upper part is smaller than the inner diameter of the barrel, the size of the lower part is larger than the inner diameter of the barrel, and the outer convex curved surface structure gradually increases from top to bottom is arranged on the lower part of the valve block.
2. The lance head structure of claim 1, wherein The valve block includes a conical surface part, a straight cylinder part, an outer convex curved surface structure and a cutoff part, and the outer diameter of the valve block gradually increases from the conical surface part, the straight cylinder part, the outer convex curved surface structure and the cutoff part.
3. The lance head structure of claim 2, wherein The inner wall of the muzzle of the barrel is an inner convex curved surface structure with gradually increasing diameter from top to bottom, and the bottom of the inner convex curved surface structure is connected with the cutoff part when the valve block is locked with the muzzle.
4. The lance head structure of claim 3, wherein The inner convex curved surface structure and the outer convex curved surface structure form a squeezing connection.
5. The lance head structure of claim 1, wherein The connecting seat is a conical structure, and step notches are formed on both sides of the connecting seat, and a one-letter structure is formed between the two step notches.
6. The lance head structure of claim 1, wherein The flow guide seat is an inverted conical structure, and step notches are formed on both sides of the flow guide seat, and a one-letter structure is formed between the two step notches.
7. The lance head structure of claim 1, wherein The valve rod is provided with a first sliding block and a second sliding block, the first sliding block and the second sliding block are located at two different positions on the valve rod, and are close to the position of the barrel outlet, the first sliding block and the second sliding block are horizontally installed, and the first sliding block and the second sliding block are vertically arranged in space.
8. The lance head structure of claim 7, wherein, The two ends of the first sliding block and the second sliding block are respectively provided with curved surfaces, and the curvature of the curved surface is the same as the curvature of the inner wall of the barrel, so that the two ends of the first sliding block can form curved surface contact with the inner wall of the barrel.
9. The lance head structure of claim 2, wherein, The circumference of the valve block is also provided with a plurality of inclined flow guide grooves, the inclination direction and inclination angle of each flow guide groove are the same, and the flow guide grooves extend from the conical surface part to the straight cylinder part, and the depth of the flow guide grooves gradually decreases.