Gun head for grouting two-component high polymer

Abstract

The utility model relates to the technical field of grouting, in particular to a gun head for grouting a double-component high polymer, which comprises a handle rod, a feed pipe and a discharge pipe are respectively arranged at two ends of the handle rod, and a plurality of discharge ports are arranged at the bottom end of the discharge pipe. The device further comprises a plurality of shielding assemblies, and each discharging port corresponds to one shielding assembly. The shielding assembly comprises a sliding rod which is elastically installed on the handle rod in a sliding mode along the axis of the handle rod, and the sliding rod penetrates through the handle rod. The baffle is fixed to the bottom end of the sliding rod, and the baffle is attached to the outer wall of the discharging pipe; the limiting plate is fixed to the bottom end of the discharging pipe, the limiting plate is located below the baffle, and the baffle abuts against the limiting plate; the locking assembly is arranged above the handle rod and used for fixing the sliding rod; the structure is simple, opening and closing of each discharging port can be independently controlled, grouting flexibility and accuracy are improved, and different construction requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting, in particular to a gun head for two-component high-polymer grouting. Background Technique

[0002] The two-component high-polymer grouting technology is an efficient and rapid method for material repair and reinforcement, which is widely used in many fields such as construction engineering, road maintenance, and underground structure repair. The core of this technology lies in the use of two (or more) chemical components, which can quickly undergo a chemical reaction when mixed under specific conditions to form a polymer material with high strength, good adhesion, and durability. Through the grouting process, this material can be accurately transported to structural defects such as cracks and holes, thereby realizing the repair and strengthening of the structure.

[0003] The utility model with the application number 202222509796.6 discloses a grouting gun head, including a handle rod. The top end of the handle rod is fixedly connected with a feed joint, and the bottom of the handle rod is fixedly connected with a discharge pipe. The bottom of the discharge pipe is provided with a discharge port, and a limiting block is arranged below the discharge port. A marking point is marked on the outer side of the top of the discharge pipe; a sliding sleeve is arranged outside the discharge pipe, and a notch is arranged on one side of the sliding sleeve. The top end of the sliding sleeve is connected with a connecting rod, and the top end of the connecting rod is provided with a connecting sleeve. The top end of the connecting sleeve is connected with a connecting piece, and a locking sleeve is arranged on the top of the connecting piece. The handle rod is of a metal tubular structure and is communicated with the discharge pipe. The bottom of the discharge pipe is provided with discharge ports at equal angles, and the discharge ports are of a circular hole structure. This grouting gun head is convenient for multi-directional slurry discharge, thus facilitating the uniform filling of the slurry, and can control the slurry discharge direction, facilitating directional filling, and thus is convenient to use.

[0004] The above device has the following deficiencies: Although a plurality of discharge ports are opened at the bottom of the discharge pipe, in actual use, this device can only allow all the discharge ports or only one discharge port to discharge grout at the same time. This limits the flexibility of grouting, especially in cases where precise control of the slurry discharge position is required. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a gun head for two-component high-polymer grouting, which has a simple structure, can independently control the opening and closing of each discharge port, improves the flexibility and accuracy of grouting, and adapts to different construction requirements.

[0006] The gun head for two-component high-polymer grouting of the utility model includes a handle rod, with a feed pipe and a discharge pipe respectively arranged at both ends of the handle rod. A plurality of discharge ports are opened at the bottom end of the discharge pipe; it further includes:

[0007] A plurality of shielding components, each discharge port corresponding to one shielding component;

[0008] The shielding component includes:

[0009] A sliding rod, which is elastically slidably mounted on the handle rod along the axis of the handle rod, and the sliding rod penetrates through the handle rod;

[0010] A baffle plate, which is fixed to the bottom end of the sliding rod, and the baffle plate fits against the outer wall of the discharge pipe;

[0011] A limiting plate, which is fixed to the bottom end of the discharge pipe, and the limiting plate is located below the baffle plate, and the baffle plate abuts against the limiting plate;

[0012] A locking component, which is arranged above the handle rod and is used to fix the sliding rod.

[0013] As a preferred solution of the present utility model, the locking component includes:

[0014] A fixing ring, which is connected to the feed pipe, and the sliding rod passes through the fixing ring;

[0015] A locking pin, which is slidably mounted on the fixing ring along the radial direction of the feed pipe. The inner end of the locking pin located inside the fixing ring is denoted as the inner end, and the inner end is in close contact with the sliding rod; the outer end of the locking pin located outside the fixing ring is denoted as the outer end, and a long slot is opened at the outer end;

[0016] A pressing plate, the middle part of which is rotatably connected to the fixing ring;

[0017] A driving shaft, which is installed at one end of the pressing plate, and the driving shaft passes through the long slot;

[0018] A first elastic member, the two ends of which are respectively connected to the other end of the pressing plate and the fixing ring;

[0019] Wherein a groove for the locking pin to insert is provided on the sliding rod.

[0020] As a preferred solution of the present utility model, the inner end of the locking pin is a smooth arc surface.

[0021] As a preferred solution of the present utility model, the locking component further includes:

[0022] A stop block, which is fixed to the outer wall of the feed pipe. When the top end of the sliding rod contacts the stop block, the locking pin is aligned with the groove.

[0023] As a preferred solution of the present utility model, the top end of the sliding rod extends outward to form an operating part.

[0024] As a preferred solution of the present utility model, an insertion block is fixed to the bottom end of the baffle plate, and the insertion block is inserted into the limiting plate.

[0025] As a preferred solution of the present utility model, the shielding component further includes:

[0026] A fixed shaft, one end of which is connected to the sliding rod and the other end extends into the handle rod;

[0027] The second elastic member is sleeved on the fixed shaft, and both ends of the second elastic member are respectively abutted against the handle rod and the sliding rod.

[0028] As a preferred embodiment of the present utility model, a plurality of protrusions are provided on the handle rod, and the protrusions are distributed in parallel in a ring shape.

[0029] Compared with the prior art, the beneficial effects of the present utility model are as follows: Each discharge port has an independent shielding component, and the opening and closing of each discharge port can be independently controlled through the shielding component. Multiple discharge ports can be selected to work simultaneously according to actual needs, adapting to different construction requirements and improving the grouting efficiency. Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of the present utility model;

[0031] Figure 2 is Figure 1 a partial enlarged view of part A in

[0032] Figure 3 is Figure 1 the front view of

[0033] Figure 4 is Figure 3 a partial enlarged view of part B in

[0034] Figure 5 is a sectional view of the present utility model;

[0035] Figure 6 is Figure 5 a partial enlarged view of part C in

[0036] Figure 7 is Figure 5 a partial enlarged view of part D in

[0037] Reference numerals in the drawings: 1. Handle rod; 2. Feed pipe; 3. Discharge pipe; 4. Discharge port; 5. Shielding component; 51. Sliding rod; 52. Baffle; 53. Limiting plate; 54. Locking component; 541. Fixed ring; 542. Lock pin; 543. Pressing plate; 544. Driving shaft; 545. First elastic member; 546. Groove; 547. Stopper; 55. Fixed shaft; 56. Second elastic member; 6. Insert block. Detailed Embodiments

[0038] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the drawings in the specification.

[0039] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0040] Secondly, the so-called "embodiment" refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present utility model. The phrase "in an embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments. Embodiment

[0041] Referring to Figures 1-7 , this embodiment provides a gun head for two-component polymer grouting, which includes a handle rod 1. Feeding pipes 2 and discharging pipes 3 are respectively arranged at both ends of the handle rod 1, and a plurality of discharging ports 4 are opened at the bottom end of the discharging pipe 3; it further includes:

[0042] A plurality of shielding components 5, and each discharging port 4 corresponds to a shielding component 5;

[0043] The shielding component 5 includes:

[0044] A sliding rod 51, which is elastically slidably installed on the handle rod 1 along the axis of the handle rod 1, and the sliding rod 51 penetrates through the handle rod 1;

[0045] A baffle plate 52, which is fixed to the bottom end of the sliding rod 51, and the baffle plate 52 fits on the outer wall of the discharging pipe 3;

[0046] A limiting plate 53, which is fixed to the bottom end of the discharging pipe 3, and the limiting plate 53 is located below the baffle plate 52. Under the action of elastic force, the baffle plate 52 abuts against the limiting plate 53;

[0047] A locking component 54, which is arranged above the handle rod 1 and is used to fix the sliding rod 51;

[0048] The specific working process of this device is as follows: In the initial state, the sliding rod 51 moves downward under the action of elastic force, so that the baffle plate 52 abuts against the limiting plate 53, and the baffle plate 52 closes the discharging port 4. When it is necessary to open a certain discharging port 4, the sliding rod 51 and the baffle plate 52 are pulled upward, so that the baffle plate 52 exposes the discharging port 4, thereby opening the discharging port 4. After the grouting is completed, the locking component 54 is released, and the sliding rod 51 resets under the action of elastic force, and the baffle plate 52 abuts against the limiting plate 53 again to close the discharging port 4.

[0049] If devices such as bolts are used to fix the sliding rod 51, there are problems such as inconvenient operation and long time consumption. As a preferred solution of the present utility model, referring to Figures 3-6 , the locking component 54 includes:

[0050] A fixing ring 541 is connected to the feed pipe 2, and a sliding rod 51 passes through the fixing ring 541;

[0051] A locking pin 542 is slidably mounted on the fixing ring 541 along the radial direction of the feed pipe 2. One end of the locking pin 542 inside the fixing ring 541 is denoted as the inner end, and the inner end is in close contact with the sliding rod 51; one end of the locking pin 542 outside the fixing ring 541 is denoted as the outer end, and a long slot is formed in the outer end;

[0052] A pressing plate 543 is rotatably connected to the fixing ring 541 at the middle part thereof;

[0053] A driving shaft 544 is installed at one end of the pressing plate 543, and the driving shaft 544 passes through the long slot;

[0054] A first elastic member 545 has two ends respectively connected to the other end of the pressing plate 543 and the fixing ring 541. The first elastic member 545 can be a spring, a spring sheet, etc.;

[0055] A groove 546 for the locking pin 542 to insert is formed on the sliding rod 51;

[0056] The specific working process of the locking assembly 54 is as follows: In the initial state, the sliding rod 51 moves downward under the action of elastic force, so that the baffle 52 abuts against the limiting plate 53, and the baffle 52 closes the discharge port 4. At this time, the inner end of the locking pin 542 is in close contact with the outer wall of the sliding rod 51. When it is necessary to open a certain discharge port 4, the sliding rod 51 at the corresponding position is pulled to move the sliding rod 51 upward, and the baffle 52 moves upward along with the sliding rod 51 to expose the discharge port 4. When the groove 546 is aligned with the locking pin 542, under the elastic force of the first elastic member 545, the pressing plate 543 and the driving shaft 544 make the locking pin 542 insert into the groove 546 of the sliding rod 51, thereby fixing the position of the sliding rod 51. When it is necessary to close this discharge port 4 again, the other end of the pressing plate 543 is pressed to rotate the pressing plate 543 and the driving shaft 544. Since the driving shaft 544 passes through the long slot, the locking pin 542 is disengaged from the groove 546, and the sliding rod 51 slides downward under the action of elastic force, and the baffle 52 abuts against the limiting plate 53 again; the opening and closing of the discharge port 4 can be realized by simply pulling the sliding rod 51 and pressing the pressing plate 543, and the operation is simple and fast.

[0057] If a smooth arc surface is not provided, the locking pin 542 may be stuck when it is aligned with the groove 546. As a preferred solution of the present invention, referring to Figure 6 , the inner end of the locking pin 542 is a smooth arc surface, and the smooth arc surface can avoid the jamming phenomenon between the locking pin 542 and the sliding rod 51, ensuring the normal operation of the locking assembly 54.

[0058] During the locking process of the sliding rod 51, there is also a problem that the locking pin 542 and the groove 546 are not convenient to position. As a preferred solution of the present utility model, referring to Figure 3 , the locking assembly 54 further includes:

[0059] A stop block 547, which is fixed on the outer wall of the feed pipe 2. When the top end of the sliding rod 51 contacts the stop block 547, the locking pin 542 is exactly opposite to the groove 546. The design of the stop block 547 ensures that when the sliding rod 51 moves upward to the vertex, the locking pin 542 is exactly aligned with the groove 546 on the sliding rod 51, improving the locking accuracy, avoiding the possible errors when manually adjusting the position of the sliding rod 51, and ensuring that each locking is correct and error-free.

[0060] In order to better grasp the sliding rod 51 when pulling the sliding rod 51, as a preferred solution of the present utility model, referring to Figure 6 , the top end of the sliding rod 51 extends outward to form an operating part. The setting of the operating part makes it easier for the operator to grasp and pull the sliding rod 51, provides a larger force application area, and reduces finger fatigue.

[0061] When the discharge port 4 is blocked by the baffle 52, it is only supported on one side. Under the impact of the material, the baffle 52 and the sliding rod 51 may break. As a preferred solution of the present utility model, referring to Figure 7 , an insertion block 6 is fixed at the bottom end of the baffle 52, and the insertion block 6 is inserted into the limiting plate 53. More specifically, a reserved groove is opened on the limiting plate 53, and the insertion block 6 is inserted into the reserved groove. After the insertion block 6 is inserted into the limiting plate 53, the baffle 52 is not only supported on one side, but also forms double-sided support at the bottom end, greatly enhancing the structural stability of the baffle 52.

[0062] In order to make the sliding rod 51 slide stably on the handle rod 1, as a preferred solution of the present utility model, referring to Figure 2 and Figure 3 , the shielding assembly 5 further includes:

[0063] A fixed shaft 55, one end of which is connected to the sliding rod 51 and the other end extends into the handle rod 1;

[0064] A second elastic member 56, which is sleeved on the fixed shaft 55. The two ends of the second elastic member 56 are respectively abutted against the handle rod 1 and the sliding rod 51. The second elastic member 56 is a spring. When the sliding rod 51 and the fixed shaft 55 move upward, the second elastic member 56 is compressed. When the sliding rod 51 is released by the locking assembly 54, under the elastic force of the second elastic member 56, the sliding rod 51 and the fixed shaft 55 slide relative to the handle rod 1.

[0065] If the handle rod 1 is smooth, relative sliding may occur easily when holding the handle rod 1. As a preferred solution of the present utility model, referring to Figure 1, several protrusions are provided on the handle rod 1, and the protrusions are distributed in parallel in a ring shape, which not only increases the friction of the handle rod 1, but also provides a better grip and operating stability.

[0066] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacture, and production.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A gun head for two-component polymer grouting, comprising a handle (1), wherein a feed pipe (2) and a discharge pipe (3) are respectively arranged at both ends of the handle (1), and a plurality of discharge ports (4) are arranged at the bottom end of the discharge pipe (3); characterized in that: Also includes: A plurality of shielding components (5), each of the discharge ports (4) corresponding to one shielding component (5); The shielding component (5) comprises: A sliding rod (51), the sliding rod (51) being elastically slidably mounted on the handle rod (1) along the axis of the handle rod (1), the sliding rod (51) penetrating the handle rod (1); A baffle (52) is fixed to the bottom end of the sliding rod (51), and the baffle (52) is attached to the outer wall of the discharge pipe (3); A limit plate (53) is fixed to the bottom end of the discharge pipe (3), and the limit plate (53) is located below the baffle plate (52), and the baffle plate (52) is in contact with the limit plate (53); A locking assembly (54) is arranged above the handle rod (1) and is used to fix the sliding rod (51).

2. The gun head for two-component polymer grouting as claimed in claim 1, characterized in that: The locking assembly (54) comprises: A fixing ring (541) connected to the feed pipe (2), and the sliding rod (51) passes through the fixing ring (541); The locking pin (542) is slidably mounted on the fixing ring (541) along the radial direction of the feed pipe (2); the end of the locking pin (542) located inside the fixing ring (541) is referred to as the inner end, and the inner end is in close contact with the sliding rod (51); the end of the locking pin (542) located outside the fixing ring (541) is referred to as the outer end, and a long hole is formed on the outer end; A pressing plate (543), a portion of which is rotatably connected to the fixing ring (541); A driving shaft (544) is mounted on one end of the pressing plate (543), and the driving shaft (544) passes through the long hole; An elastic member 1 (545), wherein two ends of the elastic member 1 (545) are respectively connected to the other end of the pressing plate (543) and the fixing ring (541); The sliding rod (51) is provided with a groove (546) for the locking pin (542) to be inserted into.

3. The gun head for two-component polymer grouting as claimed in claim 2, characterized in that: The inner end of the locking pin (542) is a smooth arc surface.

4. The gun head for two-component polymer grouting as claimed in claim 2, characterized in that: The locking assembly (54) further comprises: The stopper (547) is fixed on the outer wall of the feed pipe (2), and when the top end of the sliding rod (51) contacts the stopper (547), the locking pin (542) faces the groove (546).

5. The gun head for two-component polymer grouting as claimed in claim 1, characterized in that: The top end of the sliding rod (51) extends outward to form an operating portion.

6. The gun head for two-component polymer grouting as claimed in claim 1, characterized in that: An insert block (6) is fixed to the bottom end of the baffle plate (52), and the insert block (6) is plugged into the limiting plate (53).

7. The gun head for two-component polymer grouting as claimed in claim 1, characterized in that: The shielding component (5) further comprises: A fixed shaft (55), one end of which is connected to the sliding rod (51) and the other end of which extends into the handle rod (1); The second elastic member (56) is sleeved on the fixed shaft (55), and two ends of the second elastic member (56) are respectively in contact with the handle rod (1) and the sliding rod (51).

8. The gun head for two-component polymer grouting as claimed in claim 1, characterized in that: The handle rod (1) is provided with a plurality of protrusions, which are distributed in parallel in a ring shape.

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