Accurate dam anti-seepage structure for water conservancy and hydropower engineering

Abstract

The accurate dam anti-seepage structure for the water conservancy and hydropower engineering comprises a dam anti-seepage structure body, the dam anti-seepage structure body comprises a foundation, a dam body is arranged on one side of the upper surface of the foundation, a concrete structure is arranged on the side face of the dam body, and a drainage water storage cavity is formed in the concrete structure in a pouring mode; by designing a reinforcing mounting mechanism, after the waterproof baffle is abutted through a reinforcing abutting plate, two reinforcing extrusion plates can be adjusted and extruded on the surface of the waterproof baffle at the same time, so that the waterproof baffle is conveniently reinforced and fixedly mounted during mounting, and when the joints of the foundation, the concrete structure and the dam body are in time contact with water and soil is slightly loosened, the waterproof baffle is prevented from being damaged. The waterproof baffle plate still reinforces, installs and retains water, is not easy to cause water seepage, is convenient to adjust and operate again along with the use condition in use, always protects, compresses and reinforces, effectively blocks water and accurately prevents seepage.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of dam seepage prevention structure, and specifically relates to a precise dam seepage prevention structure for water conservancy and hydropower engineering. BACKGROUND

[0002] Water conservancy and hydropower engineering refers to the task of retaining, storing and discharging water, and thus has special requirements for the stability, pressure resistance, seepage prevention, erosion resistance, wear resistance, frost resistance and crack resistance of hydraulic structures, and needs to adopt special construction methods and measures in accordance with the technical specifications of water conservancy engineering to ensure the engineering quality, and the existing dam needs to be treated for seepage prevention during water conservancy and hydropower construction, and the seepage prevention treatment is usually carried out through a dam seepage prevention structure.

[0003] According to the authorized patent application No. 202120655041.X, a seepage prevention and water stopping structure for water conservancy and hydropower engineering is known, the existing dam seepage prevention structure directly fixes a waterproof baffle at the connection of the dam, the concrete structure and the foundation for blocking and preventing seepage, so that the waterproof baffle is inconvenient to reinforce after installation and on the side of the foundation and the dam, and the internal soil of the dam and the foundation is prone to slight loosening due to long-term immersion, and the waterproof baffle is loosened and seeps water when the internal soil of the dam and the foundation is loosened, thereby reducing the water blocking effect and affecting the convenience of reinforcing the waterproof baffle and the seepage prevention effect of the dam seepage prevention structure during seepage prevention treatment, and therefore the utility model provides a precise dam seepage prevention structure for water conservancy and hydropower engineering. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a precise dam seepage prevention structure for water conservancy and hydropower engineering to solve the problem that the waterproof baffle is inconvenient to reinforce after installation and on the side of the foundation and the dam, and the internal soil of the dam and the foundation is prone to slight loosening due to long-term immersion, and the waterproof baffle is loosened and seeps water when the internal soil of the dam and the foundation is loosened, thereby reducing the water blocking effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a precise dam seepage prevention structure for water conservancy and hydropower engineering, comprising a dam seepage prevention structure main body, the dam seepage prevention structure main body comprises a foundation, the upper surface of the foundation is provided with a dam body on one side, the side surface of the dam body is provided with a concrete structure, the internal pouring of the concrete structure is formed with a drainage water storage cavity, the internal side of the drainage water storage cavity is fixed with a sliding rod, the outer surface of the sliding rod is slid with a floating ball, and the dam seepage prevention structure main body is further provided with:

[0006] The reinforcing installation mechanism comprises a reinforcing abutting assembly arranged on the side of the waterproof baffle, the other side of the waterproof baffle is provided with an adjusting assembly, the outer surface of the adjusting assembly is provided with an extrusion pushing assembly, and the side of the extrusion pushing assembly is provided with an extrusion reinforcing assembly.

[0007] The convenient cleaning mechanism comprises a cleaning assembly arranged on the outer surface of the sliding rod, and one side of the cleaning assembly is provided with a pulling adjusting assembly.

[0008] Preferably, the top end of the dam body is fixed with a water pump and a distribution box, the inside of the distribution box is provided with an alarm and a boat-shaped switch, the front surface of the water pump extends to the inside bottom end of the drainage water storage cavity and is provided with a water suction pipe, the inside top end of the drainage water storage cavity is fixed with a touch switch, the top end of the floating ball is provided with a top rod, the top rod is correspondingly arranged with the touch switch, the touch switch is electrically connected with the alarm through an electric wire, the water pump and the alarm are electrically connected with the boat-shaped switch through electric wires, and the boat-shaped switch is connected with an external power supply electric wire.

[0009] Preferably, the reinforcing abutting assembly comprises a reinforcing abutting plate fixed at the bottom end of one side of the waterproof baffle and located in the foundation, and the surface of the reinforcing abutting plate is in contact with the surface of the waterproof baffle.

[0010] Preferably, the adjusting assembly comprises an embedded plate fixedly installed in the dam body and adhered to the surface of the concrete structure, and the inside of the embedded plate is rotatably provided with a threaded adjusting rod through a threaded structure.

[0011] Preferably, the extrusion pushing assembly comprises rotating rings fixedly installed at both ends of the outer surface of the threaded adjusting rod, the inside of the embedded plate is provided with two trapezoidal push plates, the threaded adjusting rod penetrates through the inside of the trapezoidal push plates, the rotating rings are rotatably connected with the inside of the trapezoidal push plates, the side of the trapezoidal push plates is provided with a limiting sliding block one, the side of the embedded plate is provided with a limiting sliding groove one, and the limiting sliding block one is slidably connected with the limiting sliding groove one.

[0012] Preferably, the extrusion reinforcing assembly comprises a moving connection groove arranged on the other side of the embedded plate, the inside of the moving connection groove is provided with a reinforcing extrusion plate, the end of the reinforcing extrusion plate is in contact with the surface of the waterproof baffle, the bottom end of the reinforcing extrusion plate is provided with a limiting sliding groove two, the bottom end of the inside of the moving connection groove is fixed with a limiting sliding block two, the limiting sliding block two is slidably connected with the limiting sliding groove two, the side bottom end of the trapezoidal push plate is rotatably provided with a ball, and the ball is in contact with the end surface of the reinforcing extrusion plate.

[0013] Preferably, the cleaning assembly comprises a connecting ring sleevedly installed on the outer surface of the sliding rod, the inside of the connecting ring is fixed with an annular scraper, and the inner surface of the annular scraper is in contact with the outer surface of the sliding rod.

[0014] Preferably, the pulling adjusting assembly comprises a pulling rod slidingly connected inside the concrete structure, the bottom end of the pulling rod is fixed with the side surface of the connecting ring through a screw, the top end of the concrete structure is provided with an externally threaded fixing cylinder through concrete pouring, the top end of the pulling rod penetrates the inside of the externally threaded fixing cylinder, and the outer surface of the externally threaded fixing cylinder is threadedly rotated with an internally threaded reinforcing cap.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] Through the design of the reinforcing installation mechanism, the two reinforcing extrusion plates can be adjusted and extruded on the surface of the waterproof baffle after abutting against the waterproof baffle through the reinforcing abutting plate, the waterproof baffle can be fixed and installed when being installed, and when the connecting part of the foundation, the concrete structure and the dam body is slightly loosened due to contact with water and soil, the waterproof baffle can still be reinforced and installed to block water, and water seepage is not easy to occur, the waterproof baffle can be adjusted and operated again following the use condition in use, the waterproof baffle is always tightly pressed and reinforced, water blocking and precise anti-seepage are effectively realized, and the waterproof baffle is conveniently reinforced and the anti-seepage effect is improved when the dam anti-seepage structure main body is used for water blocking treatment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a structural schematic view of the utility model;

[0019] Figure 3 It is a sectional view of the utility model;

[0020] Figure 4 It is a sectional view of the utility model; Figure 3 It is an enlarged structural schematic view of part A of the utility model;

[0021] Figure 5 It is an enlarged structural schematic view of part B of the utility model; Figure 3 It is an enlarged structural schematic view of part B of the utility model;

[0022] Figure 6 It is an enlarged structural schematic view of part C of the utility model; Figure 3 It is an enlarged structural schematic view of part C of the utility model;

[0023] In the figure: 100, the main body of the dam anti-seepage structure; 101, the foundation; 102, the concrete structure; 103, the dam body; 104, the water pump; 1041, the water pumping pipe; 1042, the distribution box; 1043, the alarm; 1044, the boat-shaped switch; 1045, the touch switch; 1046, the top rod; 105, the waterproof baffle; 1051, the reinforced resistance plate; 1052, the built-in plate; 1053, the threaded adjusting rod; 1054, the trapezoidal push plate; 1055, the rotating ring; 1056, the limit sliding block one; 1057, the ball; 1058, the moving connection groove; 1059, the limit sliding block two; 1050, the reinforced extrusion plate; 106, the sliding rod; 1061, the pull rod; 1062, the connecting ring; 1063, the annular scraper; 1064, the internal thread reinforced cap; 1065, the external thread fixing cylinder; 107, the floating ball; 108, the drainage water storage cavity. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1 to 6 The utility model provides a technical scheme: the precise dam anti-seepage structure for water conservancy and hydropower engineering, including dam anti-seepage structure main body 100, dam anti-seepage structure main body 100 including foundation 101, the upper surface one side of foundation 101 is provided with dam body 103, the side of dam body 103 is provided with concrete structure 102, the inside pouring of concrete structure 102 forms and has drainage water storage cavity 108, the inside one side of drainage water storage cavity 108 is fixed with sliding rod 106, the outer surface of sliding rod 106 slides and has floating ball 107;

[0026] The top of dam body 103 is fixed with water pump 104 and distribution box 1042, the inside of distribution box 1042 is provided with alarm 1043 and boat-shaped switch 1044, the front surface of water pump 104 extends to the inside bottom of drainage water storage cavity 108 and is provided with water pumping pipe 1041, the inside top of drainage water storage cavity 108 is fixed with touch switch 1045, the top of floating ball 107 is provided with top rod 1046, and top rod 1046 is correspondingly provided with touch switch 1045, and touch switch 1045 is electrically connected with alarm 1043 through electric wire, water pump 104 and alarm 1043 are electrically connected with boat-shaped switch 1044 through electric wire, boat-shaped switch 1044 is connected with external power supply wire, dam anti-seepage structure main body 100 still is provided with:

[0027] The reinforcing installation mechanism is provided with a reinforcing abutting assembly on one side of the waterproof baffle 105, and the other side of the waterproof baffle 105 is provided with an adjusting assembly, the outer surface of the adjusting assembly is provided with an extrusion pushing assembly, and the side surface of the extrusion pushing assembly is provided with an extrusion reinforcing assembly. The dam body 100 can be reinforced and installed by the reinforcing installation mechanism to prevent water seepage when in use.

[0028] In order to facilitate the reinforcing installation of the rear surface of the waterproof baffle 105 by the reinforcing abutting assembly, preferably, the reinforcing abutting assembly comprises a reinforcing abutting plate 1051 fixed to the bottom end of one side of the waterproof baffle 105 inside the foundation 101, and the surface of the reinforcing abutting plate 1051 is in contact with the surface of the waterproof baffle 105. The rear surface of the waterproof baffle 105 can be reinforced and installed to prevent water seepage by the reinforcing abutting plate 1051.

[0029] In order to facilitate the extrusion reinforcing installation of the two reinforcing extrusion plates 1050 at the same time by the adjusting assembly, preferably, the adjusting assembly comprises an embedded plate 1052 fixedly installed on the surface of the concrete structure 102 inside the dam body 103, and the inside of the embedded plate 1052 is rotatably provided with a threaded adjusting rod 1053 by a threaded structure, so as to facilitate the rotation of the threaded adjusting rod 1053 inside the embedded plate 1052 for adjustment.

[0030] In order to facilitate the extrusion movement of the reinforcing extrusion plate 1050 by the extrusion pushing assembly, preferably, the extrusion pushing assembly comprises a rotating ring 1055 fixedly installed on the outer surface of both ends of the threaded adjusting rod 1053, the inside of the embedded plate 1052 is provided with two trapezoidal push plates 1054, the threaded adjusting rod 1053 penetrates the inside of the trapezoidal push plate 1054, and the rotating ring 1055 is rotatably connected with the inside of the trapezoidal push plate 1054, so as to facilitate the downward movement of the trapezoidal push plate 1054 when the threaded adjusting rod 1053 is rotated, the side surface of the trapezoidal push plate 1054 is provided with a limiting sliding block one 1056, and the side surface of the embedded plate 1052 is provided with a limiting sliding groove one, the limiting sliding block one 1056 is slidably connected with the limiting sliding groove one, and the trapezoidal push plate 1054 is stably moved in the limiting position when being adjusted.

[0031] In order to facilitate the waterproof baffle 105 by extrusion reinforcement assembly reinforcement installation, in this embodiment, preferably, the extrusion reinforcement assembly includes a mobile connection slot 1058 opened in the other of the built-in plate 1052, the inside of the mobile connection slot 1058 is provided with a reinforced extrusion plate 1050, the end of the reinforced extrusion plate 1050 contacts the surface of the waterproof baffle 105, the bottom end of the reinforced extrusion plate 1050 is provided with a limiting sliding groove two, the inside bottom end of the mobile connection slot 1058 is fixedly provided with a limiting sliding block two 1059, and the limiting sliding block two 1059 is in sliding connection with the limiting sliding groove two, so as to facilitate the limiting and moving adjustment of the trapezoidal push plate 1054. The trapezoidal push plate 1054 has a ball 1057 rolling at one side bottom end, and the ball 1057 contacts the end surface of the reinforced extrusion plate 1050, so as to facilitate the movement of the trapezoidal push plate 1054 through the ball 1057 rolling to move and extrude the reinforced extrusion plate 1050 for reinforcement installation, facilitating the reinforcement installation and use.

[0032] The convenient cleaning mechanism is convenient for cleaning the surface of the sliding rod 106, and the convenient cleaning mechanism includes a cleaning assembly arranged on the outer surface of the sliding rod 106. The cleaning assembly is provided with a pulling adjustment assembly on one side. When dirt is attached to the surface of the sliding rod 106, the surface of the sliding rod 106 can be regularly cleaned by the convenient cleaning mechanism, so that the floating ball 107 is not easily hindered.

[0033] In order to facilitate cleaning by the cleaning assembly, in this embodiment, preferably, the cleaning assembly includes a connecting ring 1062 fitted and installed on the outer surface of the sliding rod 106, and the inside of the connecting ring 1062 is fixedly provided with an annular scraper 1063. The inner surface of the annular scraper 1063 contacts the outer surface of the sliding rod 106, so that the outer surface of the sliding rod 106 can be regularly cleaned by the sliding of the connecting ring 1062 and the annular scraper 1063.

[0034] In order to facilitate the pulling and cleaning of the connecting ring 1062 and the annular scraper 1063 by the pulling adjustment assembly, in this embodiment, preferably, the pulling adjustment assembly includes a pull rod 1061 slidingly connected in the concrete structure 102. The bottom end of the pull rod 1061 is fixed to the side surface of the connecting ring 1062 through a screw. The top end of the concrete structure 102 is provided with an external thread fixing cylinder 1065 by concrete pouring. The top end of the pull rod 1061 penetrates the inside of the external thread fixing cylinder 1065. The outer surface of the external thread fixing cylinder 1065 is threadedly rotated with an internal thread reinforcing cap 1064, so as to facilitate the sliding cleaning of the outer surface of the sliding rod 106 by the contact of the connecting ring 1062 and the annular scraper 1063 driven by the pull rod 1061, and the internal thread reinforcing cap 1064 is rotated to reinforce the installation of the outer surface of the external thread fixing cylinder 1065 after cleaning.

[0035] The working principle and usage process of this utility model: This precision dam seepage prevention structure for water conservancy and hydropower projects first uses a waterproof baffle 105 to block and isolate the bottom connection between the foundation 101, concrete structure 102 and dam body 103 to prevent water seepage. When water seeps into the concrete structure 102, it directly enters the water diversion and storage chamber 108 for storage. After storing a certain amount of water, the float 107 rises with the water and slides on the outer surface of the sliding rod 106. When the chamber is full, the float 107 rises and drives the top rod 1046 to touch the surface of the touch switch 1045. The touch switch 1045 starts to control the alarm 1043 to sound an alarm. The top of the water pump 104 is connected to an external water pipe, and the water pump 104 is started to work through the boat-shaped switch 1044. At this time, the water pump 104 pumps the water out of the water diversion and storage chamber 108 through the pumping pipe 1041, thereby preventing water from accumulating inside the concrete structure 102 for a long time and playing a role in seepage prevention and water stoppage.

[0036] Then, when the main body 100 of the dam seepage prevention structure has been in use for a long time and the sliding rod 106 has entered the water and has debris attached to its surface, the internal threaded reinforcing cap 1064 can be opened, and the top of the pull rod 1061 can be pulled by hand. When the pull rod 1061 is pulled, the connecting ring 1062 and the annular scraper 1063 will slide, and the annular scraper 1063 will slide and clean the outer surface of the sliding rod 106. This facilitates the regular sliding and cleaning of the outer surface of the sliding rod 106, so that the float 107 can slide accurately with the rising water on the outer surface of the sliding rod 106 without causing obstruction. This facilitates accurate alarm handling and extraction of internal water, improves the convenience of sliding and cleaning the outer surface of the sliding rod 106 during seepage prevention treatment of the main body 100 of the dam seepage prevention structure, and enables accurate drainage treatment.

[0037] Finally when the dam anti-seepage structure main body 100 before use, installation will be fixed in the inside with the waterproof baffle 105, through the reinforcing stop plate 1051 abuts to one side of the waterproof baffle 105, again fix the built-in plate 1052 in the inside of the dam body 103 and contact the side of the concrete structure 102, at this time when the adjusting screw rod 1053 is screwed in, the rotating ring 1055 is rotated, and the rotating ring 1055 is inside the trapezoidal push plate 1054, the two trapezoidal push plates 1054 are simultaneously moved down, the trapezoidal push plate 1054 is moved down through the limiting slide block one 1056, so that the trapezoidal push plate 1054 is stably moved down, and the end surface of the reinforcing extrusion plate 1050 is contacted and extruded by the ball 1057, the reinforcing extrusion plate 1050 is moved in the moving connection groove 1058, and is stably slid through the limiting slide block two 1059, until the reinforcing extrusion plate 1050 is extruded on the surface of the waterproof baffle 105, and it is convenient to strengthen the installation of the waterproof baffle 105 during installation, and when the connection of the foundation 101, the concrete structure 102 and the dam body 103 is slightly loose due to contact with water and soil, the waterproof baffle 105 can be adjusted to be always reinforced and installed to prevent water, and it is not easy to cause water seepage, and it is convenient to adjust and operate again during use, always protect the tight reinforcement, effectively block water and accurately prevent seepage, improve the convenience and anti-seepage effect of the waterproof baffle 105 of the dam anti-seepage structure main body 100 during anti-seepage treatment.

[0038] Although the embodiments of the present application have been shown and described (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A precision seepage prevention structure for water conservancy and hydropower projects, comprising a main seepage prevention structure (100), wherein the main seepage prevention structure (100) includes a foundation (101), a dam body (103) is provided on one side of the upper surface of the foundation (101), a concrete structure (102) is provided on the side of the dam body (103), a water diversion and storage cavity (108) is formed by pouring concrete inside the concrete structure (102), a sliding rod (106) is fixed on one side of the inside of the water diversion and storage cavity (108), and a float (107) slides on the outer surface of the sliding rod (106), characterized in that: The main body (100) of the dam seepage prevention structure is also equipped with: A reinforcement installation mechanism is provided, and the reinforcement installation mechanism includes a reinforcement abutment component disposed on the side of a waterproof baffle (105), an adjustment component disposed on the other side of the waterproof baffle (105), a compression pushing component disposed on the outer surface of the adjustment component, and a compression reinforcement component disposed on the side of the compression pushing component; A convenient cleaning mechanism, comprising a cleaning component disposed on the outer surface of a slide bar (106), wherein a pull adjustment component is disposed on one side of the cleaning component.

2. The precision dam seepage prevention structure for water conservancy and hydropower projects according to claim 1, characterized in that: A water pump (104) and a power distribution box (1042) are fixed at the top of the dam body (103). An alarm (1043) and a boat-shaped switch (1044) are installed inside the power distribution box (1042). A water pumping pipe (1041) is installed at the bottom of the water pump (104) extending from the front surface to the inside of the water diversion and storage chamber (108). A touch switch (1045) is fixed at the top of the inside of the water diversion and storage chamber (108). A top rod (1046) is installed at the top of the float (107). The top rod (1046) is correspondingly provided with the touch switch (1045). The touch switch (1045) is electrically connected to the alarm (1043) through a wire. The water pump (104) and the alarm (1043) are both electrically connected to the boat-shaped switch (1044) through wires. The boat-shaped switch (1044) is connected to an external power supply wire.

3. The precision dam seepage prevention structure for water conservancy and hydropower projects according to claim 1, characterized in that: The reinforced abutment assembly includes a reinforced abutment plate (1051) fixed to one side of the waterproof baffle (105) with its bottom end located inside the foundation (101), and the surface of the reinforced abutment plate (1051) is in contact with the surface of the waterproof baffle (105).

4. The precision dam seepage prevention structure for water conservancy and hydropower projects according to claim 1, characterized in that: The adjustment assembly includes an internal plate (1052) reinforced and installed inside the dam body (103) and attached to the surface of the concrete structure (102). The internal plate (1052) has a threaded adjustment rod (1053) that rotates through a threaded structure.

5. The precision dam seepage prevention structure for water conservancy and hydropower projects according to claim 4, characterized in that: The extrusion pushing assembly includes rotating rings (1055) fixedly installed at both ends of the outer surface of the threaded adjusting rod (1053). The interior of the built-in plate (1052) is provided with two trapezoidal push plates (1054). The threaded adjusting rod (1053) passes through the interior of the trapezoidal push plate (1054), and the rotating rings (1055) are rotatably connected to the interior of the trapezoidal push plate (1054). The side of the trapezoidal push plate (1054) is provided with a limiting slider (1056), and the side of the built-in plate (1052) is provided with a limiting groove. The limiting slider (1056) is slidably connected to the limiting groove.

6. The precision dam seepage prevention structure for water conservancy and hydropower projects according to claim 5, characterized in that: The compression reinforcement assembly includes a movable connecting groove (1058) opened on the other side of the built-in plate (1052). A reinforcing compression plate (1050) is provided inside the movable connecting groove (1058). The end of the reinforcing compression plate (1050) contacts the surface of the waterproof baffle (105). A second limiting groove is opened at the bottom end of the reinforcing compression plate (1050). A second limiting slider (1059) is fixed at the bottom end of the inner part of the movable connecting groove (1058), and the second limiting slider (1059) is slidably connected to the second limiting groove. A ball (1057) rolls on one side of the bottom end of the trapezoidal push plate (1054), and the ball (1057) contacts the end surface of the reinforcing compression plate (1050).

7. The precision dam seepage prevention structure for water conservancy and hydropower projects according to claim 1, characterized in that: The cleaning assembly includes a connecting ring (1062) fitted onto the outer surface of a slide bar (106), and an annular scraper (1063) is fixed inside the connecting ring (1062), with the inner surface of the annular scraper (1063) in contact with the outer surface of the slide bar (106).

8. The precision dam seepage prevention structure for water conservancy and hydropower projects according to claim 7, characterized in that: The pull adjustment assembly includes a pull rod (1061) slidably connected inside the concrete structure (102). The bottom end of the pull rod (1061) is fixed to the side of the connecting ring (1062) by screws. The top end of the concrete structure (102) is provided with an externally threaded fixing cylinder (1065) through concrete pouring. The top end of the pull rod (1061) penetrates the interior of the externally threaded fixing cylinder (1065). The outer surface of the externally threaded fixing cylinder (1065) is threaded with an internally threaded reinforcing cap (1064).

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