Petroleum distribution sampling equipment for petroleum exploitation

Abstract

The invention discloses petroleum distribution sampling equipment for petroleum exploitation, and relates to the technical field of petroleum sampling, the petroleum distribution sampling equipment comprises a sampling barrel, and is characterized in that a first sampling cavity and a second sampling cavity are arranged in the sampling barrel, a first piston is slidably connected in the first sampling cavity, a second piston is slidably connected in the second sampling cavity, and a second piston is slidably connected in the second sampling cavity; a transmission assembly is arranged between the first piston and the second piston, after sampling is completed and the first piston moves to a preset position, the transmission assembly drives the second piston to move, and then petroleum is discharged. According to the petroleum distribution sampling equipment for petroleum exploitation, after sampling is completed and a second piston in a second sampling cavity moves to a preset position, the second piston triggers a transmission assembly at the moment, the transmission assembly drives a first piston to move in a first sampling cavity, and then petroleum is discharged out of a sampling barrel.

Description

Technical Field

[0001] This invention relates to the field of petroleum sampling technology, and more specifically to a petroleum distribution sampling device for petroleum development. Background Technology

[0002] The invention, published on May 27, 2025, under publication number CN120042591A, entitled "A Petroleum Distribution Sampling Device for Petroleum Development," relates to the field of petroleum development sampling technology. It includes a mounting plate with a drive assembly inside. The drive assembly is connected to a crossbar, which is slidably connected to the inner wall of the mounting plate. A moving block is slidably connected to the crossbar, and a collection box is fixedly connected to the bottom of the moving block. A sampling box is fixedly connected to and communicates with the bottom of the collection box. Several sets of sampling components are symmetrically arranged on the sampling box. A hollow cylinder is fixedly installed inside the sampling box, and a conveying box is slidably connected inside the hollow cylinder to hold the samples from the sampling components. This invention achieves flexible movement in a two-dimensional plane through the sliding connection of the drive assembly and the moving block, enabling coverage of a wider sampling area. The design of multiple sampling components and conveying boxes allows for simultaneous collection of samples from multiple locations, improving sampling efficiency. Precise control of the movement of the moving block and conveying box, as well as the drilling depth of the drill rod, ensures sampling accuracy.

[0003] In the prior art, including the above, after the sampling equipment has completed sampling, the user needs to drain the oil samples from each sampling cylinder. This is especially cumbersome after sampling at multiple points. Summary of the Invention

[0004] The purpose of this invention is to provide a petroleum distribution sampling device for petroleum development, so as to overcome the above-mentioned shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A petroleum exploration and petroleum distribution sampling device includes a sampling cylinder. The sampling cylinder is provided with a first sampling chamber and a second sampling chamber. A first piston is slidably connected in the first sampling chamber, and a second piston is slidably connected in the second sampling chamber. A transmission component is provided between the first piston and the second piston. After sampling is completed, the first piston moves to a preset position, causing the transmission component to drive the second piston to move, thereby realizing the unloading of petroleum.

[0006] Preferably, a central tube is provided at the axial position of the sampling cylinder, and the central tube is connected to the first sampling chamber and the second sampling chamber respectively.

[0007] Preferably, a Venturi tube is provided at the connection between the central tube and the second sampling chamber, and a second spherical plug is slidably connected inside the Venturi tube.

[0008] Preferably, the transmission assembly includes three plug-in members slidably connected in the radial direction of the sampling cylinder, each plug-in member being provided with a first abutting block that abuts against the sealing plug and a second abutting block that limits the second piston.

[0009] Preferably, a first piston is slidably connected to the bottom end of the first sampling chamber, and the first piston is connected to the central tube by a third spring.

[0010] Preferably, the end of the central tube located at the first sampling chamber is slidably connected to a first spherical plug, and the central tube is provided with a pair of locking members for limiting the first spherical plug.

[0011] Preferably, the locking element includes two plug-in blocks slidably connected to the end of the central tube, and each plug-in block is connected to the central tube by a first spring.

[0012] Preferably, it also includes an unlocking component, which includes a transmission block slidably connected to the end of the central tube. Two hinge rods are provided between the transmission block and each plug block. One end of each hinge rod is hinged to the transmission block, and the other end of each hinge rod is hinged to the plug block corresponding to it.

[0013] Preferably, the end of the sealing plug moving toward the end of the central tube abuts against the transmission block, thereby unlocking the first spherical plug by the insertion block.

[0014] Preferably, a wedge-shaped block is slidably connected to the sealing plug in the radial direction, and the wedge-shaped block is connected to the sealing plug by a fifth spring. The transmission block is provided with an abutment portion that matches the wedge-shaped block.

[0015] Beneficial effects In the above technical solution, the present invention provides an oil distribution sampling device for oil extraction. After sampling is completed, when the second piston in the second sampling chamber moves to a preset position, the second piston triggers the transmission component, which drives the first piston to move in the first sampling chamber, thereby realizing the discharge of oil from the sampling cylinder.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0017] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the sampling cylinder structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the installation structure of the connector provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first abutment block provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the sampling tube provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the first spherical plug structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the sealing plug provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the plug-in block structure provided in an embodiment of the present invention; Figure 8 A schematic diagram of the fifth spring structure provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the mounting structure of the first spring provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Sampling cylinder; 1.01. First mounting groove; 1.02. First spring; 1.03. Insertion block; 1.04. Transmission block; 1.05. Hinge rod; 1.1. First sampling chamber; 1.11. First spherical plug; 1.12. Second spring; 1.13. Third spring; 1.14. Fourth spring; 1.15. First piston; 1.150. Insertion groove; 1.16. Sealing plug; 1.160. Wedge block; 1.161. Fifth spring; 1.162. 1.2 Second Sampling Chamber; 1.20 Second Piston; 1.21 Drain Port; 1.210 Valve; 1.22 Sixth Spring; 1.23 Second Spherical Plug; 1.230 Seventh Spring; 1.3 Connector; 1.30 First Abutment Block; 1.31 Eighth Spring; 1.32 Connecting Block; 1.320 Ninth Spring; 1.33 Second Abutment Block; 1.4 Central Tube; 1.40 Venturi Tube Section; 1.41 Feed End. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0022] Reference Figure 1-9 This invention provides an oil distribution sampling device for oil extraction, including a sampling cylinder 1. The sampling cylinder 1 is provided with a first sampling chamber 1.1 and a second sampling chamber 1.2. A first piston 1.15 is slidably connected in the first sampling chamber 1.1, and a second piston 1.20 is slidably connected in the second sampling chamber 1.2. A transmission component is provided between the first piston 1.15 and the second piston 1.20. After sampling is completed, the first piston 1.15 moves to a preset position, causing the transmission component to drive the second piston 1.20 to move, thereby realizing the unloading of oil.

[0023] like Figure 1-2 As shown, the sampling cylinder 1 is provided with a first sampling chamber 1.1 and a second sampling chamber 1.2 arranged sequentially from bottom to top. A first piston 1.15 is slidably connected in the first sampling chamber 1.1, and a second piston 1.20 is slidably connected in the second sampling chamber 1.2. By sliding the first piston 1.15 up and down in the first sampling chamber 1.1, the pressure in the first sampling chamber 1.1 is controlled, thereby controlling the axial downward movement of the sealing plug 1.16 in the first sampling chamber 1.1. The sliding of the sealing plug 1.16 opens or closes the first sampling chamber 1.1, realizing the sampling and discharge of oil. The second piston 1.20 is located in the second sampling chamber 1.2. The first sampling cylinder 1.1 moves upward along its axis to sample oil. The second piston 1.20 slides downward within the second sampling chamber 1.2 to discharge oil from the second sampling chamber 1.2. A drain port 1.21 is fixedly connected to the side wall of the sampling cylinder 1 at the end of the second sampling chamber 1.2. A valve 1.210 is installed on the drain port 1.21. By opening or closing the valve 1.210, oil from the second sampling chamber 1.2 can be discharged. By setting up the first sampling chamber 1.1 and the second sampling chamber 1.2, oil samples can be taken from two different depths during the sampling process, shortening the sampling time.

[0024] A transmission assembly is provided between the first piston 1.15 and the second piston 1.20. The transmission assembly is mounted on the sampling cylinder 1 and can slide radially in the sampling cylinder 1. A sealing ring is provided between the transmission assembly and the sampling cylinder 1 to prevent oil leakage. When the first piston 1.15 moves to a preset position, that is, when the first piston 1.15 moves to the level of the drain port 1.21, the first piston 1.15 abuts against the transmission assembly, which in turn causes the transmission assembly to drive the second piston 1.20 to move from top to bottom in the second sampling chamber 1.2, causing oil to be squeezed out of the second sampling chamber 1.2.

[0025] During use, after sampling is completed, the user opens the valve 1.210 on the drain port 1.21, causing the second piston 1.20 in the second sampling chamber 1.2 to move downwards, thereby discharging the oil in the second sampling chamber 1.2 from the drain port 1.21. When the second piston 1.20 moves to a position flush with the drain port 1.21, the second piston 1.20 drives the transmission component to move, which in turn drives the first piston 1.15 to move downwards, causing the sealing plug 1.16 to move axially downwards in the first sampling chamber 1.1. The first sampling chamber 1.1 is opened or closed by the sliding of the sealing plug 1.16, thereby discharging the oil.

[0026] Reference Figure 2-5 As shown, in another embodiment of the present invention, a central tube 1.4 is provided at the axial position of the sampling cylinder 1, and the central tube 1.4 is respectively connected to the first sampling chamber 1.1 and the second sampling chamber 1.2.

[0027] A venturi tube section 1.40 is provided at the connection between the central tube 1.4 and the second sampling chamber 1.2, and a second spherical plug 1.23 is slidably connected inside the venturi tube section 1.40.

[0028] The transmission assembly includes three plug-in parts 1.3 that are slidably connected in the radial direction of the sampling cylinder 1. Each plug-in part 1.3 is provided with a first abutting block 1.30 that abuts against the sealing plug 1.16 and a second abutting block 1.33 that limits the second piston 1.20.

[0029] The bottom end of the first sampling chamber 1.1 is slidably connected to a first piston 1.15, and the first piston 1.15 is connected to the central tube 1.4 by a third spring 1.13.

[0030] Specifically, a central tube 1.4 is installed at the axial position of the sampling cylinder 1. The central tube 1.4 is connected to the first sampling chamber 1.1 and the second sampling chamber 1.2. Both ends of the central tube 1.4 are connected. A sixth spring 1.22 is fixedly connected to the top of the inner wall of the second sampling chamber 1.2. The other end of the sixth spring 1.22 is fixedly connected to the second piston 1.20. A second spring 1.12 is fixedly connected to the top of the inner wall of the first sampling chamber 1.1. The other end of the second spring 1.12 is fixedly connected to the first piston 1.15. A Venturi tube section 1.40 is installed at the connection position between the central tube 1.4 and the second sampling chamber 1.2. The Venturi tube section 1.40 includes a throat section. A constriction section is connected to one side of the throat section, and a diffuser section is connected to the other end of the throat section. The throat section has the smallest cross-section, resulting in the largest flow velocity and the lowest static pressure. The flow channel in the constriction section gradually narrows, and the flow velocity begins to increase. The flow in the diffuser section... As the flow path gradually widens, the flow velocity decreases and the pressure rises (but cannot fully recover, resulting in energy loss). Since a negative pressure zone is formed in the throat section when the fluid enters, multiple oil inlets are opened through the throat section of the central tube 1.4 during the sampling process. The oil is forced into the second sampling chamber 1.2 by the negative pressure. A second spherical plug 1.23 is slidably connected to the venturi tube section 1.40 in the axial direction. The second spherical plug 1.23 is connected to the venturi tube section 1.40 by a seventh spring 1.230. The upper end of the central tube 1.4 is connected to an air pump, which extracts air from the sample cylinder 1 for sampling. Multiple vent holes are opened around the periphery of the central tube 1.4 near the top of the inner wall of the first sampling chamber 1.1. When the first sampling chamber 1.1 is full of oil, the second spring 1.12 is at its maximum deformation, and the first piston 1.15 can just block the vent holes on the central tube 1.4.

[0031] The transmission assembly includes three connectors 1.3 slidably connected radially to the sampling cylinder 1. Each connector 1.3 moves radially within the sampling cylinder 1. One end of each connector 1.3 is fixedly connected to a first abutment block 1.30, which is located within the first sampling chamber 1.1. The other end of each connector 1.3 is fixedly connected to a connecting block 1.32. A second abutment block 1.33 is slidably connected within each connecting block 1.32. A ninth spring 1.32 is fixedly connected to the inner wall of each connecting block 1.32. 0. The other end of the ninth spring 1.320 is fixedly connected to the corresponding second abutment block 1.33. A matching insertion groove 1.150 is opened on the radial side of the first piston 1.15 at the position corresponding to each second abutment block 1.33. An eighth spring 1.31 is fixedly connected between each insertion part 1.3 and the sampling cylinder 1. A sixth spring 1.22 is fixedly connected to the top of the inner wall of the second sampling chamber 1.2. The other end of the sixth spring 1.22 is fixedly connected to the second piston 1.20.

[0032] After sampling is completed, the user manually opens valve 1.210 on drain port 1.21, allowing oil to flow out. This causes the second piston 1.20 to slide axially in the second sampling chamber 1.2. Since the second spherical plug 1.23 in the throat section blocks the oil inlet, oil will not enter the central tube 1.4. When the second piston 1.20 moves to the position of the first abutment block 1.30, it abuts against the first abutment block 1.30, thereby causing the various connectors to... 1.3 The first piston 1.15 moves away from the axis of the sampling cylinder 1, thereby disengaging the first abutment block 1.30 from the corresponding insertion groove 1.150, which unlocks the first piston 1.15. The second spring 1.12 generates a spring force to push the first piston 1.15 to move, pressurizing the first piston 1.15 in the first sampling chamber 1.1, which in turn causes the sealing plug 1.16 to move axially downward in the first sampling chamber 1.1, thereby opening the first sampling chamber 1.1 and squeezing the oil out of the first sampling chamber 1.1.

[0033] Reference Figure 2-8 As shown, in another embodiment of the present invention, the end of the central tube 1.4 located at the position of the first sampling chamber 1.1 is slidably connected to a first spherical plug 1.11, and a pair of locking members for limiting the first spherical plug 1.11 are provided on the central tube 1.4.

[0034] The locking component includes two plug-in blocks 1.03 that are slidably connected to the end of the central tube 1.4. Each plug-in block 1.03 is connected to the central tube 1.4 by a first spring 1.02.

[0035] It also includes an unlocking component, which includes a transmission block 1.04 slidably connected to the end of the central tube 1.4. Two hinge rods 1.05 are provided between the transmission block 1.04 and each plug block 1.03. One end of each hinge rod 1.05 is hinged to the transmission block 1.04, and the other end of each hinge rod 1.05 is hinged to the plug block 1.03 corresponding to it.

[0036] The end of the sealing plug 1.16 moving toward the end of the central tube 1.4 abuts against the transmission block 1.04, causing the insertion block 1.03 to unlock the first spherical plug 1.11.

[0037] A wedge block 1.160 is slidably connected to the sealing plug 1.16 in the radial direction. The wedge block 1.160 and the sealing plug 1.16 are connected by a fifth spring 1.161. An abutment part adapted to the wedge block 1.160 is provided on the transmission block 1.04.

[0038] Specifically, a first spherical plug 1.11 is slidably connected inside the central tube 1.4. The first spherical plug 1.11 is connected to the central tube 1.4 by a fourth spring 1.14. At the end of the central tube 1.4 is a feed end 1.41, and three first mounting grooves 1.01 are circumferentially formed on the end face of the feed end 1.41. Two of the first mounting grooves 1.01 are located on the same horizontal line, and the third first mounting groove 1.01 is perpendicular to the two collinear first mounting grooves 1.01. A plug-in block 1.03 is slidably connected in each of the two collinear first mounting grooves 1.01. Each plug-in block 1.03 is connected to its corresponding first mounting groove 1.01 by a first spring 1.02. A transmission block 1.04 adapted to the third first mounting groove 1.01 is slidably connected in the fourth first mounting groove 1.01. The transmission block 1.04 is provided with an abutment part, and a hinge rod 1.05 is provided between the transmission block 1.04 and each plug-in block 1.03. One end of each hinge is hinged to the transmission block 1.04, and the other end of each hinge rod 1.05 is hinged to the corresponding insertion block 1.03. A limiting groove is provided on the first spherical plug 1.11 at the position corresponding to each insertion block 1.03. A sealing plug 1.16 is sleeved on the outside of the central tube 1.4. The sealing plug 1.16 opens or closes the first sampling chamber 1.1 by sliding axially in the first sampling chamber 1.1. The sealing plug 1.16 and the central tube 1.4... The tubes 1.4 are connected by a third spring 1.13. A wedge block 1.160 that is compatible with the sealing plug 1.16 is slidably connected at the position of the abutment part on each plug block 1.03 on the radial side of the sealing plug 1.16. A second mounting groove 1.162 is opened on the radial side of the sealing plug 1.16. A fifth spring 1.161 is fixedly connected in the second mounting groove 1.162. The sealing plug 1.16 and the wedge block 1.160 are connected by the fifth spring 1.161.

[0039] During sampling, when the first sampling chamber 1.1 moves to the preset depth, the air pump starts working, causing the first piston 1.15 in the first sampling chamber 1.1 to move upward, and the sealing plug 1.16 moves upward on the central tube 1.4. This causes the sealing plug 1.16 to move upward, putting the third spring 1.13 in an extended state, allowing the oil sample to enter the first sampling chamber 1.1 for sampling. At this time, the sealing plug 1.16 is located below each of the first abutment blocks 1.30. The air pump then stops working, and the third spring 1.13 returns to its original length, closing the first sampling chamber 1.1. When the sampling cylinder 1 moves to the sampling depth again, the air pump injects a small amount of air into the central tube 1.4, causing the first piston 1.15 in the first sampling chamber 1.1 to move downward, thus causing the sealing plug 1.16 to move upward. 16 moves downward, causing the wedge-shaped block 1.160 on the sealing plug 1.16 to abut against the abutment part on the transmission block 1.04, thereby causing the transmission block 1.04 to move towards the axial position of the central tube 1.4. This causes the transmission block 1.04 to drive each insertion block 1.03 to unlock the first spherical plug 1.11. At this time, the sealing plug 1.16 is still in a state of sealing the first sampling chamber 1.1. The air pump stops filling and starts pumping air, causing the first piston 1.15 to move to the position blocking the vent. At this time, the second abutment block 1.33 locks and limits the first piston 1.15. Then the air pump continues to pump air, causing the first spherical plug 1.11 to move upward in the central tube 1.4. At this time, when the oil enters the throat section, a negative pressure zone will be formed in the throat section, thereby causing the oil to enter the second sampling chamber 1.2.

[0040] After sampling is completed, the user manually opens the valve 1.210 on the drain port 1.21, allowing oil to flow out from the drain port 1.21. This causes the second piston 1.20 to slide axially in the second sampling chamber 1.2. Since the second spherical plug 1.23 in the throat section blocks the oil inlet, the oil will not enter the central tube 1.4. When the second piston 1.20 moves to the position of the first abutting block 1.30, it abuts against the first abutting block 1.30, causing each connector 1.3 to move away from the axis of the sampling cylinder 1. This causes the first abutting block 1.30 to disengage from its corresponding insertion groove 1.150, unlocking the first piston 1.15. The second spring 1.12 generates elastic force to push the first piston 1.15, thereby squeezing the oil out of the first sampling chamber 1.1.

[0041] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A petroleum distribution sampling device for petroleum development, comprising a sampling cylinder (1), characterized in that, The sampling cylinder (1) is provided with a first sampling chamber (1.1) and a second sampling chamber (1.2). A first piston (1.15) is slidably connected in the first sampling chamber (1.1). A central tube (1.4) is provided at the axial position of the sampling cylinder (1). A sealing plug (1.16) is sleeved on the outside of the central tube (1.4). The sealing plug (1.16) slides in the first sampling chamber (1.1). A second piston (1.20) is slidably connected in the second sampling chamber (1.2). The first piston (1.15) and the second piston (1.20) are connected in a sliding manner. A transmission assembly is provided between the pistons (1.20). The transmission assembly includes three plug-in parts (1.3) that are slidably connected to the radial direction of the sampling cylinder (1). Each plug-in part (1.3) is provided with a first abutting block (1.30) that abuts against the sealing plug (1.16) and a second abutting block (1.33) that limits the second piston (1.20). After sampling is completed, the first piston (1.15) moves to a preset position, which causes the transmission assembly to drive the second piston (1.20) to move, thereby realizing the unloading of oil.

2. The petroleum distribution sampling device for petroleum development according to claim 1, characterized in that, A central tube (1.4) is provided at the axial position of the sampling tube (1), and the central tube (1.4) is connected to the first sampling chamber (1.1) and the second sampling chamber (1.2) respectively.

3. The petroleum distribution sampling device for petroleum development according to claim 2, characterized in that, A Venturi tube section (1.40) is provided at the connection between the central tube (1.4) and the second sampling chamber (1.2), and a second spherical plug (1.23) is slidably connected inside the Venturi tube section (1.40).

4. The petroleum distribution sampling device for petroleum development according to claim 2, characterized in that, The bottom end of the first sampling chamber (1.1) is slidably connected to a first piston (1.15) adapted thereto, and the first piston (1.15) is connected to the central tube (1.4) by a third spring (1.13).

5. The petroleum distribution sampling device for petroleum development according to claim 4, characterized in that, The end of the central tube (1.4) located at the position of the first sampling chamber (1.1) is slidably connected to a first spherical plug (1.11), and a pair of locking members for limiting the first spherical plugs (1.11) are provided on the central tube (1.4).

6. The petroleum distribution sampling device for petroleum development according to claim 5, characterized in that, The locking element includes two plug blocks (1.03) that are slidably connected to the end of the central tube (1.4), and each plug block (1.03) is connected to the central tube (1.4) by a first spring (1.02).

7. The petroleum distribution sampling device for petroleum development according to claim 6, characterized in that, It also includes an unlocking component, which includes a transmission block (1.04) slidably connected to the end of the central tube (1.4). Two hinge rods (1.05) are provided between the transmission block (1.04) and each plug block (1.03). One end of each hinge rod (1.05) is hinged to the transmission block (1.04), and the other end of each hinge rod (1.05) is hinged to the plug block (1.03) corresponding to it.

8. The petroleum distribution sampling device for petroleum development according to claim 7, characterized in that, The end of the sealing plug (1.16) moving toward the end of the central tube (1.4) abuts against the transmission block (1.04), causing the insertion block (1.03) to unlock the first spherical plug (1.11).

9. The petroleum distribution sampling device for petroleum development according to claim 8, characterized in that, A wedge block (1.160) is slidably connected to the sealing plug (1.16) in the radial direction. The wedge block (1.160) and the sealing plug (1.16) are connected by a fifth spring (1.161). The transmission block (1.04) is provided with an abutment part that is adapted to the wedge block (1.160).

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