Reinforcing steel bar riveting equipment

Abstract

The utility model belongs to the technical field of construction reinforcing steel bar connection, and particularly relates to reinforcing steel bar riveting equipment which comprises a telescopic mechanism and two mounting seats oppositely arranged on the telescopic mechanism, and through grooves used for allowing reinforcing steel bars to penetrate through are formed in the mounting seats; a positioning block is rotatably arranged on one side of the mounting base, and a positioning groove right opposite to the through groove is formed in the positioning block; the telescopic mechanism can drive the two positioning blocks to get close to each other so as to achieve riveting of the two steel bars. According to the structure, in the crimping process, the positioning block can deflect by a certain angle relative to the mounting base, part of lateral force and deflection force can be counteracted, and the situation that the lateral force and the deflection force directly act on the telescopic mechanism, consequently, the telescopic mechanism is damaged, and the service life is shortened is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building steel bar connecting technical field, especially a steel bar riveting equipment. BACKGROUND

[0002] The connecting mode of steel bars mainly includes grouting joint connection and steel bar mechanical connection. Among them, the common steel bar mechanical connection mode is to set a steel bar adapter (riveting sleeve) on the outer side of two steel bars, and then radially or axially extrude the steel bar adapter through the corresponding steel bar connecting tool, so that the steel bar adapter is deformed and mutually engaged with the two steel bars to be connected, thereby achieving the purpose of connection.

[0003] Most of the existing steel bar connecting tools adopt hydraulic pressure connection structure. For example, the patent for invention with publication number CN115026220A discloses a steel bar axial connecting piece, connecting tool and connecting method, which moves the movable jaw base to the direction of the fixed front seat through the hydraulic rod, thereby moving the two steel bars and the sleeve to the direction of the fixed front seat, extruding the sleeve through the tapering jaw opening, and realizing tight connection.

[0004] The patent for invention with publication number CN115026220A discloses a steel bar axial connecting piece, connecting tool and connecting method, which moves the movable jaw base to the direction of the fixed front seat through the hydraulic rod, thereby moving the two steel bars and the sleeve to the direction of the fixed front seat, extruding the sleeve through the tapering jaw opening, and realizing tight connection.

[0005] However, it is found in actual work that when the hydraulic cylinder is used for pressure connection, the steel bar riveting needs the hydraulic cylinder to provide sufficient pressure, and during the pressure connection process, the components such as the hydraulic cylinder are subjected to deflection force, lateral force and the like, which directly act on the cylinder body of the hydraulic cylinder, resulting in problems such as deformation of the cylinder body and deformation of the sealing element, thereby affecting the service life of the hydraulic cylinder. UTILITY MODEL CONTENTS

[0006] In view of the technical problems in the background art, the utility model provides a steel bar riveting equipment.

[0007] To achieve the above-mentioned purpose, the utility model provides the technical scheme that:

[0008] A steel bar riveting equipment, comprising a telescopic mechanism and two mounting seats oppositely arranged on the telescopic mechanism, a through groove for penetrating a steel bar is arranged in the mounting seat; a positioning block is rotatably arranged on one side of the mounting seat, and a positioning groove opposite to the through groove is arranged in the positioning block; the telescopic mechanism can drive the two positioning blocks to approach each other to realize riveting of the two steel bars.

[0009] Optionally, two sides of the mounting base are respectively provided with first round holes, two sides of the positioning block are respectively provided with second round holes, the positioning block and the mounting base are close to each other, and a pin shaft is arranged on inner walls of the first round hole and the second round hole; two sides of the positioning block are respectively provided with connecting blocks, a plurality of locking screws are arranged on the connecting blocks, and two sides of the mounting base are respectively provided with arc-shaped grooves.

[0010] Optionally, the connecting block is triangular, and the locking screw is provided with three; two sides of the positioning block are respectively provided with two screw holes in the vertical direction, and two vertical locking screws are connected in the screw holes.

[0011] Optionally, the through groove and the positioning groove are both provided in a U shape.

[0012] Optionally, the positioning groove includes first and second positioning grooves with different depths, a positioning cylinder is inserted into the first and second positioning grooves, and an inner hole of the positioning cylinder is provided as a stepped through hole.

[0013] Optionally, the telescopic mechanism includes a piston rod, an outer cylinder body and an inner cylinder body, one side of the outer cylinder body is provided with an end cover assembly, the piston rod is arranged in the end cover assembly, one side of the piston rod is arranged in the outer cylinder body, and an end of the piston rod is provided with a first piston; the inner cylinder body is arranged on an inner wall of the outer cylinder body in a sliding mode, one end of the inner cylinder body is provided with a guide sleeve, the guide sleeve is arranged on an outer wall of the piston rod in a sliding mode, and the first piston slides close to the inner wall of the inner cylinder body; the piston rod is provided with a first medium flow channel and a second medium flow channel which are in communication with an inner cavity of the inner cylinder body; one of the mounting bases is connected with the outer cylinder body, and the other mounting base is connected with the inner cylinder body.

[0014] Optionally, one end of one of the mounting bases is integrally provided with a positioning ring, and the positioning ring is arranged on an outer wall of the outer cylinder body; one end of the other mounting base is integrally provided with a positioning sleeve, and the positioning sleeve is arranged at an end of the inner cylinder body.

[0015] Optionally, a handle is detachably arranged at one end of the positioning ring; and a lifting lug is detachably arranged at an end of the positioning sleeve.

[0016] Optionally, the end cover assembly includes an inner cover and an outer cover, the inner cover is inserted into one end of the outer cylinder body, an inner part of the inner cover is provided with a circular groove, one side of the piston rod is provided with a spherical joint, and the spherical joint is arranged in the circular groove; the outer cover is connected to one end of the outer cylinder body, and a bottom wall of the outer cover is press-connected with an outer wall of the inner cover; an inner part of the outer cover is provided with a pressing cover, the pressing cover is connected with the inner cover, an inner wall of the inner cover is provided with an arc-shaped pressing groove, and the pressing groove is arranged close to the spherical joint.

[0017] Optionally, one end of the spherical joint is detachably provided with an outer shaft, an outer wall of the outer shaft is provided with a rotary joint, the rotary joint is provided with a first interface and a second interface, the outer shaft is provided with a third medium flow channel and a fourth medium flow channel, two ends of the third medium flow channel are respectively communicated with the first interface and the first medium flow channel, and two ends of the fourth medium flow channel are respectively communicated with the second interface and the second medium flow channel.

[0018] The utility model has the advantages and beneficial effects that:

[0019] In the utility model, when the mounting seat is driven by the telescopic mechanism, the positioning block is rotatably arranged on one side of the mounting seat, and the positioning block is used for clamping and positioning the reinforcing bar connector (riveting sleeve, etc.). During crimping, the two reinforcing bars are arranged in the through slot of the mounting seat, and the telescopic mechanism is used to drive the two positioning blocks to approach each other, so as to drive the reinforcing bar connector and the reinforcing bar to be tightly crimped / riveted. In the crimping process, the positioning block can be deflected / rotated at a certain angle relative to the mounting seat, a part of the lateral force and the deflection force can be offset, the lateral force and the deflection force are avoided from directly acting on the telescopic mechanism, the telescopic mechanism is prevented from being damaged, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural diagram of the reinforcing bar riveting equipment in the utility model;

[0021] Figure 2 It is a half sectional view of the reinforcing bar riveting equipment in the utility model;

[0022] Figure 3 It is Figure 2 a sectional view along the K-K direction in the utility model;

[0023] Figure 4 It is Figure 2 an enlarged view of part of the structure in the utility model;

[0024] Figure 5 It is Figure 2 a left view of the utility model;

[0025] Figure 6 It is one of the connection structure diagrams of the mounting seat, the positioning block and the connecting block in the utility model;

[0026] Figure 7 It is the second connection structure diagram of the mounting seat, the positioning block and the connecting block in the utility model;

[0027] Figure 8 It is one of the connection structure diagrams of the mounting seat and the positioning block in the utility model;

[0028] Figure 9 It is the second connection structure diagram of the mounting seat and the positioning block in the utility model;

[0029] Figure 10 It is the structure diagram of the mounting seat and the positioning ring in the utility model;

[0030] Figure 11 It is the structure diagram of the mounting seat and the positioning sleeve in the utility model;

[0031] Figure 12 It is the structure diagram of the positioning block in the utility model;

[0032] Figure 13 It is the connection structure diagram of the positioning block and the positioning cylinder in the utility model;

[0033] Figure 14 It is the sectional view of the mounting seat and the positioning block in the utility model for placing the steel bar riveting;

[0034] Figure 15 It is the sectional view of the steel bar and the riveting sleeve riveting in the utility model.

[0035] Reference signs: 1-outer cylinder body, 12-inner cover, 13-outer cover, 14-gland, 141-first connecting screw, 15-locking ring, 16-handle, 2-piston rod, 21-first medium flow channel, 22-second medium flow channel, 23-spherical joint, 24-first piston, 3-outer shaft, 31-rotary joint, 32-first interface, 321-third medium flow channel, 33-second interface, 331-fourth medium flow channel, 34-connecting flange, 341-second connecting screw, 5-inner cylinder body, 51-guide sleeve, 52-inner cylinder cover body, 6-support ring gland, 61-support ring, 7-mounting seat, 71-through slot, 72-arc-shaped slot, 73-first circular hole, 74-positioning ring, 741-first connecting hole, 75-positioning sleeve, 751-second connecting hole, 76-lifting lug, 8-positioning block, 81-first positioning slot, 82-second positioning slot, 83-second circular hole, 84-threaded hole, 85-pivot, 86-positioning cylinder, 87-limiting convex ring, 9-steel bar, 91-outer riveting sleeve, 92-inner riveting sleeve, 10-connecting block, 101-locking screw. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] like Figures 1 to 15 As shown, a rebar riveting device includes a telescopic mechanism and two mounting seats 7 disposed opposite to each other on the telescopic mechanism. The telescopic mechanism is used to drive the two mounting seats 7 closer together or further apart. Each mounting seat 7 has a through groove 71 for threading a rebar 9. A positioning block 8 is rotatably disposed on one side of each mounting seat 7, and the positioning block 8 has a positioning groove directly opposite the through groove 71. The telescopic mechanism can drive the two positioning blocks 8 closer together to achieve the riveting of two rebars 9.

[0040] The riveting of two steel bars 9 requires the use of a riveting sleeve. This utility model provides an example of one type of riveting sleeve structure, such as... Figure 14 and Figure 15 As shown, the riveting sleeve includes an inner riveting sleeve 92 and an outer riveting sleeve 91. The inner riveting sleeve 92 and the outer riveting sleeve 91 are fitted together and pressed against each other. The inner riveting sleeve 92 is set tightly against the two steel bars 9, thereby connecting the two steel bars 9. Therefore, in actual operation, it is only necessary to pass the steel bars 9 through the through slot 71 of the mounting base 7, and then use the positioning slot on the positioning block 8 to position and install the riveting sleeve (inner riveting sleeve 92 and outer riveting sleeve 91). Then, the telescopic mechanism can drive the two positioning blocks 8 to move closer to each other, so that the inner riveting sleeve 92 and the outer riveting sleeve 91 are pressed together and tightly pressed against the two steel bars 9.

[0041] In this invention, when the mounting base 7 is driven by the telescopic mechanism, a positioning block 8 is rotatably provided on one side of the mounting base 7. The positioning block 8 is used to clamp and position the rebar 9 connector (riveting sleeve, etc.). During crimping, the two rebars 9 are respectively placed in the through groove 71 of the mounting base 7. The telescopic mechanism drives the two positioning blocks 8 to move closer to each other, causing the rebar 9 connector and the rebar 9 to be tightly crimped / riveted. In this structure, during the crimping process, the positioning block 8 can deflect / rotate at a certain angle relative to the mounting base 7, which can offset part of the lateral force and deflection force, avoiding the lateral force and deflection force directly acting on the telescopic mechanism, which would damage the telescopic mechanism and reduce its service life.

[0042] like Figures 1 to 13As shown, further, the two sides of the mounting seat 7 are respectively provided with first circular holes 73, the first circular holes 73 are half circular holes with an angle less than 180°, the two sides of the positioning block 8 are respectively provided with second circular holes 83, the second circular holes 83 are half circular holes with an angle less than 180°. The positioning block 8 is close to the mounting seat 7, and the two have a gap, and the inner walls of the first circular holes 73 and the second circular holes 83 are provided with a pin shaft 85, that is, the positioning block 8 can rotate relative to the mounting seat 7 around the pin shaft 85. The two sides of the positioning block 8 are respectively provided with a connecting block 10, the connecting block 10 is provided with a plurality of locking screws 101, the two sides of the mounting seat 7 are respectively provided with arc-shaped grooves 72, the arc-shaped grooves 72 are arranged in the rotation path of the locking screws 101, and one of the locking screws 101 is slidingly arranged in the arc-shaped groove 72. Figure 10 、 11 In the utility model, the angle of the arc-shaped groove 72 is not too large, preferably 0-5°, so that the rotation angle of the positioning block 8 can be limited, and large-angle deflection of the positioning block 8 is avoided. Through the design, the positioning block 8 is rotatably connected with the mounting seat 7 through the pin shaft 85 and the connecting block 10, so that when the reinforcing steel bars 9 are riveted, the positioning block 8 can be deflected / rotated at a certain angle relative to the mounting seat 7, and a part of the lateral force and the deflection force can be offset.

[0043] As shown in the figure, Figures 1 to 13 Further, the connecting block 10 is triangular, and the locking screw 101 is provided with three; the two sides of the positioning block 8 are respectively provided with two screw holes 84 in the vertical direction, and the two vertical locking screws 101 are connected in the screw holes 84, so that the connecting block 10 and the positioning block 8 are detachably connected through the locking screw 101. The triangular connecting block 10 can stably realize the rotational connection of the positioning block 8 and the mounting seat 7, and the locking screw 101 on the triangular positioning block 8 is slidingly arranged in the arc-shaped groove 72, so that the pressure transmission during the pressure connection of the reinforcing steel bars 9 is realized, and a part of the lateral force and the deflection force is offset.

[0044] In the utility model, the through groove 71 and the positioning groove are both provided with U-shaped structures, so that the positioning of the reinforcing steel bars 9 is facilitated.

[0045] In the utility model, the positioning groove includes a first positioning groove 81 and a second positioning groove 82 with different depths, the first positioning groove 81 and the second positioning groove 82 are provided with a positioning cylinder 86, and the inner hole of the positioning cylinder 86 is provided with a stepped through hole. One end of the positioning cylinder 86 is provided with a limiting convex ring 87, and the limiting convex ring 87 is clamped in the second positioning groove 82. The positioning cylinder 86 can be a two-piece splicing structure, so that the quick installation of the riveting sleeve is facilitated. Figure 14 and Figure 15The inner riveting sleeve 92 is installed in the second positioning groove 82 of one of the positioning blocks 8, and the outer riveting sleeve 91 is installed in the stepped through hole of the positioning cylinder 86. Two steel bars 9 are inserted into the through groove 71 of the mounting base 7 and pass through the inner riveting sleeve 92 and the outer riveting sleeve 91. Then, by using the telescopic mechanism, the two mounting bases 7 are driven to move closer to each other, so that the inner riveting sleeve 92 and the outer riveting sleeve 91 are pressed together, thus connecting the two steel bars 9 and the riveting sleeve into one piece.

[0046] Example 2

[0047] like Figures 1 to 13 As shown, in this utility model, the telescopic mechanism includes a piston rod 2, an outer cylinder 1, and an inner cylinder 5. An end cap assembly is provided on one side of the outer cylinder 1. The piston rod 2 passes through the end cap assembly, and one side of the piston rod 2 is located inside the outer cylinder 1. A first piston 24 is provided at the end of the piston rod 2. The inner cylinder 5 is slidably mounted on the inner wall of the outer cylinder 1, and a guide sleeve 51 is provided on the inner wall of one end of the inner cylinder 5. The guide sleeve 51 is hollow inside and slidably mounted on the outer wall of the piston rod 2. The first piston 24 slides tightly against the inner wall of the inner cylinder 5. A first medium flow channel 21 and a second medium flow channel 22 are provided on the piston rod 2, communicating with the inner cavity of the inner cylinder 5. The end of the first medium flow channel 21 is located at the end of the piston rod 2, and the end of the second medium flow channel 22 is located between the first piston 24 and the guide sleeve 51. One mounting seat 7 is connected to the outer cylinder 1, and the other mounting seat 7 is connected to the inner cylinder 5. When the medium is introduced into the first medium flow channel 21 or the second medium flow channel 22, the guide sleeve 51 and the inner cylinder 5 can be controlled to slide, thereby realizing the distance adjustment between the two mounting seats 7 between the cylinder (inner cylinder 5 and outer cylinder 1).

[0048] Furthermore, a positioning ring 74 is integrally provided at the bottom end of one of the mounting bases 7, and the positioning ring 74 is provided on the outer wall of the outer cylinder body 1; a positioning sleeve 75 is integrally provided at the bottom end of the other mounting base 7, and the positioning sleeve 75 is fitted onto the end of the inner cylinder body 5. A locking ring 15 is also threadedly connected to the outer cylinder body 1, and the locking ring 15 limits the positioning ring 74.

[0049] Furthermore, the bottom end of the positioning ring 74 is detachably provided with a handle 16. Specifically, the bottom end of the positioning ring 74 is evenly distributed with several first connecting holes 741. By setting connecting screws on the handle 16 and screwing them into the first connecting holes 741, the handle 16 and the positioning ring 74 can be detachably connected. At the same time, the end of the connecting screw is used to press against the outer wall of the outer cylinder 1 to achieve the fixed installation of the positioning ring 74.

[0050] Furthermore, the end of the positioning sleeve 75 is detachably provided with a lifting lug 76. Specifically, one end of the positioning sleeve 75 is provided with a second connecting hole 751, and one end of the lifting lug 76 is threaded into the second connecting hole 751.

[0051] As Figure 2 shown in the utility model, the inner cylinder body 5 is integrally screw-connected with an inner cylinder cover body 52, and the inner cylinder cover body 52 is further screw-connected with an outer cover through a screw, and one end of the lifting lug 76 is screw-connected with the positioning sleeve 75 and the outer cover in sequence, thereby enhancing the connecting strength of the whole lifting lug 76.

[0052] As Figures 1 to 13 shown in the utility model, the end cover assembly comprises an inner cover 12 and an outer cover 13, the inner cover 12 is inserted on one end face of the outer cylinder body 1, the inner cover 12 is internally provided with a circular groove, one side of the piston rod 2 is provided with a spherical joint 23, and the spherical joint 23 is arranged in the circular groove. The outer cover 13 is screw-connected on one end face of the outer cylinder body 1, and the bottom wall of the outer cover 13 is press-connected with the outer wall of the inner cover 12; the inner part of the outer cover 13 is hollow, the inner part of the outer cover 13 is provided with a gland 14, and the gland 14 is connected with the inner cover 12; specifically, the gland 14 and the inner cover 12 are connected through a first connecting screw 141. The inner wall of the inner cover 12 is provided with an arc-shaped pressing groove, the pressing groove is closely arranged with the spherical joint 23, and the limiting installation of the spherical joint 23 is realized. Through such design, the spherical joint 23 and the end cover assembly are limited by the spherical joint 23 on the piston rod 2 and the arc-shaped groove of the end cover assembly, so that the spherical joint 23 and the end cover assembly have a rotating ability with a fixed angle during the press-connection process, thereby the partial deflection force and lateral force can be offset, and the service life of the telescopic mechanism is increased.

[0053] Further, one end of the spherical joint 23 is detachably provided with an outer shaft 3; specifically, one end of the outer shaft 3 is provided with a connecting flange 34, and the connecting flange 34 and the spherical joint 23 are connected through a second connecting screw 341. The outer wall of the outer shaft 3 is provided with a rotary joint 31, the inner wall of the rotary joint 31 is provided with two annular grooves, the rotary joint 31 is provided with a first interface 32 and a second interface 33, and the first interface 32 and the second interface 33 are respectively communicated with corresponding annular grooves. The inner part of the outer shaft 3 is provided with a third medium flow channel 321 and a fourth medium flow channel 331, two ends of the third medium flow channel 321 are respectively communicated with the first interface 32 and the first medium flow channel 21, and two ends of the fourth medium flow channel 331 are respectively communicated with the second interface 33 and the second medium flow channel 22. The rotary joint 31 is connected in a mode that, in actual use, the medium pipeline can be installed at any angle and connected to the first interface 32 and the second interface 33, thereby facilitating the medium access.

[0054] In the utility model, the inner wall of the outer cylinder body 1 is provided with a supporting ring 61, the supporting ring 61 is closely arranged with the outer wall of the inner cylinder body 5, and the end of the outer cylinder body 1 is screw-connected with a supporting ring gland 6, and the installation of the supporting ring 61 is realized through the supporting ring gland 6. Through the supporting ring 61, the outer cylinder body 1 and the inner cylinder body 5 have a certain gap, and the two are not in direct contact, thereby preventing the mutual friction between the cylinder bodies (the outer cylinder body 1 and the inner cylinder body 5) from causing the cylinder body wear and tear.

[0055] In the utility model, the first piston 24, the guide sleeve 51, the piston rod 2, the rotary joint 31 and the like corresponding structure connecting position place will set up corresponding sealing element, to guarantee sealing effect, specific structure is not at length.

[0056] The above are only preferred embodiments of the utility model, and are not used for limiting the utility model, and for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A reinforcing bar riveting apparatus characterised in that: The utility model provides a steel bar riveting device, including telescopic mechanism and two mountings opposite setting on telescopic mechanism, the through slot for passing steel bar is set in the mountings, one side of mountings can rotatably set the locating block, the locating groove opposite with through slot is set in locating block, telescopic mechanism can drive two locating blocks to be close to each other to realize riveting of two steel bars.

2. The rebar riveting apparatus of claim 1, wherein: Two sides of mountings are provided with first round hole respectively, two sides of locating block are provided with second round hole respectively, locating block is close to each other with mountings, and the inner wall of first round hole and second round hole is provided with pin shaft, two sides of locating block are provided with connecting block respectively, a plurality of locking screws are provided on connecting block, and the arc slot is provided on two sides of mountings, wherein one locking screw is slidably arranged in arc slot.

3. The rebar riveting apparatus of claim 2, wherein: Connecting block is provided as triangle, and locking screw is provided with three, two screw holes are provided on two sides of locating block along vertical direction, and two vertical locking screws are connected in screw hole.

4. The rebar riveting apparatus of claim 1, wherein: Through slot and locating groove are all provided as U shape.

5. The rebar riveting apparatus of claim 4, wherein: Locating groove includes first locating groove and second locating groove with different depths, locating cylinder is inserted in first locating groove and second locating groove, and inner hole of locating cylinder is provided as stepped through hole.

6. The rebar riveting apparatus of claim 1, wherein: Telescopic mechanism includes piston rod, outer cylinder and inner cylinder, One side of outer cylinder is provided with end cover assembly, piston rod is arranged in end cover assembly, one side of piston rod is arranged in outer cylinder, and end of piston rod is provided with first piston, inner cylinder is slidably arranged on inner wall of outer cylinder, one end inner wall of inner cylinder is provided with guide sleeve, guide sleeve is slidably arranged on outer wall of piston rod, first piston is slidably arranged on inner wall of inner cylinder, first medium flow channel and second medium flow channel are arranged on piston rod and communicated with inner cavity of inner cylinder. One of mountings is connected with outer cylinder, and the other mounting is connected with inner cylinder.

7. The rebar riveting apparatus of claim 6, wherein: Bottom end of one of mountings is integrally provided with locating ring, and locating ring is arranged on outer wall of outer cylinder, bottom end of the other mounting is integrally provided with locating sleeve, and locating sleeve is arranged on end of inner cylinder.

8. The rebar riveting apparatus of claim 7, wherein: Bottom end of locating ring is detachably provided with handle, and end of locating sleeve is detachably provided with lifting lug.

9. The rebar riveting apparatus of claim 6, wherein: End cover assembly includes inner cover and outer cover, inner cover is inserted on one end surface of outer cylinder, inner part of inner cover is provided with circular groove, one side of piston rod is provided with spherical joint, and spherical joint is arranged in circular groove, outer cover is connected on one end surface of outer cylinder, bottom wall of outer cover is press-connected with outer wall of inner cover, inner part of outer cover is provided with press cover, press cover is connected with inner cover, inner wall of inner cover is provided with arc-shaped pressing groove, and pressing groove is arranged close to spherical joint.

10. The rebar riveting apparatus of claim 9, wherein: One end of the spherical joint is detachably provided with an outer shaft, an outer wall of the outer shaft is provided with a rotary joint, the rotary joint is provided with a first interface and a second interface, the outer shaft is provided with a third medium flow channel and a fourth medium flow channel, two ends of the third medium flow channel are respectively communicated with the first interface and the first medium flow channel, and two ends of the fourth medium flow channel are respectively communicated with the second interface and the second medium flow channel.

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