Reinforcing steel bar integral positioning clamp for single-track railway tunnel short side wall water-stop belt

Abstract

The invention discloses a steel bar integral positioning clamp for a single-track railway tunnel low side wall water stop belt, and belongs to the technical field of tunnel construction.The steel bar integral positioning clamp comprises a mounting plate body, a fixing mechanism and a positioning mechanism, and the fixing mechanism is arranged on the mounting plate body and used for fixing the position where the mounting plate body is located; the positioning mechanism comprises a positioning fixing plate, a positioning adjusting plate, a positioning adjusting assembly, two positioning clamping plates and a clamping plate moving assembly, the positioning fixing plate is installed on the positioning adjusting plate, the positioning adjusting assembly is arranged on the positioning fixing plate and used for driving the positioning adjusting plate to move in the vertical direction, and the two positioning clamping plates are oppositely arranged; the clamping plate movement assembly is used for driving the two positioning clamping plates to move in the direction close to or away from each other. The positioning device has the advantages that after the water-stop belt for the low side wall of the single-track railway tunnel is positioned, the position of the water-stop belt can be finely adjusted, and the applicability is improved.

Description

Technical Field

[0001] The invention relates to the field of tunnel construction, in particular to a steel bar integral positioning fixture for a water stop strip on a short side wall of a single-track railway tunnel. Background Art

[0002] The waterstop strip for the low side wall of a single-track railway tunnel is a waterproof material specially used for the low side wall of a single-track railway tunnel. It is mainly used to meet the waterproof requirements of the expansion joint.

[0003] During the installation process of the waterstop, a positioning fixture is usually used to position the waterstop itself to ensure the stability of the position after the waterstop is installed. The waterstop positioning fixture used for the low side wall of a single-track railway tunnel is usually welded by profiles such as steel bars. When fixing the waterstop, the fixed plates on both sides of the waterstop are used to achieve stable fixation of the waterstop.

[0004] With respect to the above-mentioned related technologies, the waterstop positioning fixture structure used for the low side wall of a single-track railway tunnel is usually fixed, which is not convenient for achieving slight adjustments to the position of the waterstop and has poor applicability. Summary of the invention

[0005] In order to facilitate the slight adjustment of the position of the waterstop strip used for the low side wall of a single-track railway tunnel after positioning the waterstop strip and improve applicability, the present application provides a steel bar integral positioning fixture for the waterstop strip of the low side wall of a single-track railway tunnel.

[0006] The present application provides a steel bar integral positioning fixture for a low side wall water stop strip of a single-track railway tunnel, which adopts the following technical solution: A steel bar integral positioning fixture for a low side wall water stop strip of a single-track railway tunnel comprises a mounting plate, a fixing mechanism and a positioning mechanism, wherein the fixing mechanism is arranged on the mounting plate and is used to fix the mounting plate at its position; the positioning mechanism comprises a positioning fixing plate, a positioning adjustment plate, a positioning adjustment assembly, a positioning clamp and a clamp movement assembly, wherein the positioning fixing plate is mounted on the positioning adjustment plate, the positioning adjustment assembly is arranged on the positioning fixing plate and is used to drive the positioning adjustment plate to move in a vertical direction, two positioning clamps are arranged opposite each other, and the clamp movement assembly is used to drive the two positioning clamps to move towards or away from each other.

[0007] By adopting the above technical scheme, when fixing the waterstop of the low side wall of a single-track railway tunnel, the position of the installation plate is first fixed by the fixing mechanism, and then the two positioning clamps are driven by the clamping plate movement component to move towards each other to achieve clamping and fixing of both sides of the waterstop, which is beneficial to ensure the stability of the position of the waterstop. At this time, the positioning adjustment plate is driven by the positioning adjustment component to move in the vertical direction to facilitate the slight adjustment of the vertical position of the waterstop, so that the waterstop can adapt to different construction conditions and has strong applicability.

[0008] Optionally, the positioning adjustment component includes a positioning adjustment screw, the positioning adjustment plate is provided with a positioning groove extending in a vertical direction, the positioning fixing plate is fixedly installed with a positioning slider, the positioning slider is slidably engaged in the positioning groove, the positioning adjustment screw is vertically rotatably installed on the positioning fixing plate, and the positioning adjustment screw is penetrated and threadedly engaged with the positioning adjustment plate.

[0009] By adopting the above technical solution, when force is applied to rotate the positioning adjustment screw, the positioning slider cooperates with the thread of the adjustment screw and moves in the vertical direction under the limiting action of the positioning slide groove, which is convenient and stable.

[0010] Optionally, the positioning and fixing plate is installed on the mounting plate body through a connecting component, the connecting component includes a connecting and fixing rod, a connecting sliding rod, a connecting reset piece and a connecting ball, the connecting and fixing rod is fixedly installed on the positioning and fixing plate, one end of the connecting and fixing rod is provided with a connecting movable groove, the outer side of the connecting and fixing rod is provided with a connecting and fixing hole connected to the connecting movable groove, the connecting ball is located in the connecting and fixing hole and the diameter of the connecting ball is larger than the hole diameter of the connecting and fixing hole, the connecting sliding rod is slidably fitted in the connecting movable groove, the outer side of the connecting sliding rod is provided with a connecting accommodating groove for accommodating the connecting ball, the connecting reset piece is used to make the connecting sliding rod move in a direction away from the connecting and fixing rod, and when the connecting sliding rod contacts the connecting ball, the outer side of the connecting ball passes through the fixing hole; the mounting plate body is provided with a mounting socket that is plugged into and matched with the connecting and fixing rod.

[0011] By adopting the above technical solution, when the connecting sliding rod is pressed so that the position of the accommodating groove and the fixing hole are aligned, the connecting fixing rod is inserted into the mounting socket, and the connecting ball is received in the accommodating groove under the action of the component force during the insertion process. When the connecting fixing rod is inserted into the mounting socket, the connecting sliding rod is released, and the connecting sliding rod is reset under the elastic force of the connecting reset member, thereby pushing out the connecting ball, so that the connection between the fixing rod and the mounting plate body is fixed under the limiting action of the connecting ball, so that the connection between the positioning fixing plate and the mounting plate body is convenient and fast.

[0012] Optionally, the mounting socket includes a sliding section and a limiting section, the limiting section is opened on the inner wall of the sliding section, and the limiting section is used to accommodate the connecting ball.

[0013] By adopting the above technical solution, the setting of the limiting section plays a further role in limiting the position of the connecting ball, which is beneficial to further ensure the connection stability between the positioning and fixing plate and the mounting plate body.

[0014] Optionally, the mounting plate is fixedly mounted with a fixed connecting sleeve, the mounting socket is opened in the fixed connecting sleeve, and the connecting reset member includes a connecting spring, one end of the connecting spring is connected to the connecting movable groove wall, and the other end is connected to the connecting sliding rod.

[0015] By adopting the above technical solution, the setting of the connecting spring makes the reset structure of the connecting sliding rod simple and convenient, and the setting of the fixed connecting sleeve facilitates the processing and forming of the installation socket.

[0016] Optionally, the splint motion assembly includes a splint rotating seat, a splint rotating member, a bidirectional screw and a splint driving member. The splint rotating seat is rotatably mounted on the positioning adjustment plate, the splint rotating member is used to drive the splint rotating seat to rotate around its own axis, the bidirectional screw is rotatably mounted on the splint rotating seat, the two ends of the bidirectional screw thread with opposite rotation directions are respectively passed through and threadedly engaged with two positioning splints, the two positioning splints are slidably engaged with the splint rotating seat, and the splint driving member is used to drive the bidirectional screw to rotate.

[0017] By adopting the above technical scheme, when the splint driving member drives the bidirectional lead screw to rotate, the two positioning splints cooperate with the threads of the bidirectional lead screw and move towards or away from each other under the limiting action of the splint rotating seat, which is convenient and stable. In addition, the rotation of the splint rotating seat driven by the splint rotating member facilitates the adjustment of the horizontal angle of the waterstop after the waterstop is clamped and fixed, thereby facilitating the curved installation of the waterstop and better fitting the structural deformation parts according to different construction conditions. It has strong applicability and is conducive to better ensuring the waterproof effect of the waterstop after installation under different construction conditions.

[0018] Optionally, the splint rotating member includes a splint rotating rod, a splint rotating worm wheel and a splint rotating worm, the splint rotating rod is coaxially fixedly mounted on the splint rotating seat, the splint rotating rod is rotatably mounted on the positioning adjustment plate, the splint rotating worm wheel is coaxially fixedly mounted on the splint rotating rod, and the splint rotating worm is rotatably mounted on the positioning adjustment plate and meshes with the splint rotating worm wheel.

[0019] By adopting the above technical solution, when force is applied to rotate the clamp plate rotating worm, the clamp plate rotating worm wheel drives the clamp plate rotating seat to rotate together. The self-locking effect between the clamp plate rotating worm wheel and the clamp plate rotating worm is conducive to ensuring the stability of the position of the clamp plate rotating seat after rotation.

[0020] Optionally, the splint driving component includes a driving worm, a driving worm wheel, a driving gear, a rack sleeve and a driven gear, the driven gear is coaxially fixedly mounted on the bidirectional screw, the rack sleeve is meshed with the driven gear, the rack sleeve is sleeved and slidably fitted on the splint rotating rod, the driving gear is rotatably mounted on the positioning adjustment plate and meshed with the rack sleeve, the driving worm wheel is coaxially fixedly mounted on the driving gear, and the driving worm is rotatably mounted on the positioning adjustment plate and meshed with the driving worm wheel.

[0021] By adopting the above technical solution, when force is applied to rotate the driving worm, the driving worm wheel drives the driving rack to rotate together, and the rack sleeve moves along the axial direction of the clamp plate rotating rod due to the engagement with the driving gear, thereby driving the driven gear and the two-way screw to rotate together. The self-locking effect between the driving worm and the driving worm wheel is conducive to ensuring the stability of the position of the two-way screw after rotation.

[0022] Optionally, the positioning adjustment plate is installed with a protective shell, and the protective shell covers the splint rotating part and the splint driving part. One end of the splint rotating worm and the driving worm are both passed through and rotatably matched with the protective shell. One end of the splint rotating worm and the driving worm passed through the protective shell is fixedly equipped with a handle.

[0023] By adopting the above technical solution, the setting of the protective shell is convenient for protecting the covered components, so that the covered components are not easily affected by the outside, which is beneficial to ensure the transmission stability between the driving components. The setting of the handle makes it easy for construction personnel to apply force to realize the rotation of the rotating worm and the driving worm.

[0024] Optionally, the fixing mechanism includes a fixing card, a fixing screw and a fixing clamp, the fixing card is fixedly mounted on the mounting plate, the fixing screw is rotatably mounted on the fixing card, the fixing screw is passed through and threadedly engaged with the fixing clamp, and the fixing clamp is slidably engaged with the mounting plate.

[0025] By adopting the above technical solution, when the frame or the cross rib is located between the fixed clamping plate and the fixed splint, the fixing screw is rotated by applying force, and the fixing splint cooperates with the thread of the fixing screw and moves toward the fixed clamping plate under the limiting action of the mounting plate, thereby achieving the fixation of the mounting plate in a convenient and quick manner.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the waterstop is clamped and fixed by two positioning clamps, the positioning adjustment plate is driven to move in the vertical direction through the positioning adjustment component to facilitate the slight adjustment of the vertical position of the waterstop, so that the waterstop can adapt to different construction conditions and has strong applicability.

[0027] 2. After the connecting fixing rod is inserted into the mounting socket, the connecting sliding rod is released, and the connecting sliding rod is reset under the elastic force of the connecting reset member, thereby pushing out the connecting ball, so that the connecting fixing rod and the mounting plate body are fixed under the limiting action of the connecting ball, and the connection between the positioning fixing plate and the mounting plate body is convenient and fast.

[0028] 3. The rotation of the splint rotating seat is driven by the splint rotating member, so that the horizontal angle of the waterstop can be adjusted after the waterstop is clamped and fixed, thereby facilitating the bending installation of the waterstop, and making it easier to fit the deformed parts of the structure according to different construction conditions. It has strong applicability and is conducive to better ensuring the waterproof effect of the waterstop after installation under different construction conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a partial cross-sectional schematic diagram of the mounting plate in the embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the main structure of the splint motion assembly in the embodiment of the present application.

[0032] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part A.

[0033] Figure 5 It is a partial cross-sectional schematic diagram of the clamping plate rotating seat in the embodiment of the present application.

[0034] Description of reference numerals: 1. Mounting plate; 2. Fixing card plate; 3. Fixing screw; 4. Fixing clamp plate; 5. Positioning fixing plate; 6. Positioning adjustment plate; 7. Positioning clamp plate; 8. Connecting fixing rod; 9. Connecting sliding rod; 901. Active part; 902. Connecting part; 10. Connecting spring; 11. Connecting ball; 12. Connecting active groove; 121. Connecting section; 122. Active section; 13. Connecting fixing hole; 14. Connecting accommodating groove; 15. Fixed connecting sleeve; 16 , mounting socket; 161, sliding section; 162, limiting section; 17, positioning adjustment screw; 18, positioning slider; 19, positioning slide groove; 20, gripping part; 21, clamping plate rotating seat; 22, bidirectional screw; 23, clamping plate rotating rod; 24, clamping plate rotating worm gear; 25, clamping plate rotating worm; 26, driving worm; 27, driving worm gear; 28, driving gear; 29, rack sleeve; 30, driven gear; 31, protective shell; 32, handle. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The present application embodiment discloses a steel bar integral positioning fixture for a low side wall water stop strip of a single-track railway tunnel. Figure 1 The steel bar integral positioning fixture for the waterstop strip of the low side wall of a single-track railway tunnel includes a mounting plate body 1, a fixing mechanism and a positioning mechanism, wherein the mounting plate body 1 is roughly in the shape of a rectangular plate. In the embodiment of the present application, the length direction of the mounting plate body 1 is the x-axis direction, the width direction is the y-axis direction, and the height direction is the z-axis direction. The fixing mechanism is arranged on the mounting plate body 1 and is used to fix the mounting plate body 1.

[0037] Continue to refer to Figure 1 Specifically, two groups of fixing mechanisms are provided, and both groups of fixing mechanisms are located at the bottom of the mounting plate body 1 and are respectively arranged on both sides of the length direction of the mounting plate body 1. The fixing mechanisms include a fixing card plate 2, a fixing screw 3 and a fixing clamp plate 4. The fixing card plate 2 is fixedly installed at the bottom of the mounting plate body 1, and the fixing screw 3 is arranged along the x-axis direction and rotatably installed on the fixing card plate 2. The fixing screw 3 is penetrated and threadedly engaged with the fixing clamp plate 4. The top of the fixing clamp plate 4 abuts against the bottom of the mounting plate body 1 and slides with the mounting plate body 1, so that when the frame or the cross rib is located between the fixing card plate 2 and the fixing clamp plate 4, the fixing screw 3 is rotated by applying force to the fixing screw 3, and the fixing clamp plate 4 moves toward the direction close to the fixing card plate 2, thereby fixing the mounting plate body 1 at the position thereof by clamping the frame or the cross rib by the fixing clamp plate 4 and the fixing card plate 2.

[0038] Reference Figure 2 and Figure 3The positioning mechanism includes a positioning and fixing plate 5, a positioning and adjusting plate 6, a positioning and adjusting assembly, a positioning clamping plate 7 and a clamping plate movement assembly, wherein the positioning and fixing plate 5 is installed on the mounting plate body 1 through a connecting assembly, and the connecting assembly is provided with two groups and is respectively arranged close to both sides of the length direction of the positioning and fixing plate 5. Specifically, the connecting assembly includes a connecting and fixing rod 8, a connecting sliding rod 9, a connecting reset member and a connecting ball 11. The connecting and fixing rod 8 is arranged along the x-axis direction and fixedly installed on the positioning and fixing plate 5. A connecting movable groove 12 is opened at one end of the connecting and fixing rod 8. The connecting and movable groove 12 includes a connecting section 121 and a movable section 122. The movable section 122 is opened on the connecting and fixing rod 8. The connecting section 121 is opened on the groove wall of the movable section 122 away from its own groove, and the cross-sectional size of the connecting section 121 is smaller than the cross-sectional size of the movable section 122.

[0039] Reference Figure 2 The connecting sliding rod 9 includes a movable portion 901 and a connecting portion 902 fixedly mounted at one end of the movable portion 901. The connecting portion 902 and the movable portion 901 are respectively slidably fitted in the connecting section 121 and the movable section 122. The connecting reset member includes a connecting spring 10, which is sleeved outside the connecting portion 902. One end of the connecting spring 10 is connected to the groove wall of the connecting movable section 122 away from its own groove, and the other end is connected to the movable portion 901, so that the connecting sliding rod 9 moves in a direction away from the connecting section 121 under the elastic force of the connecting spring 10.

[0040] Continue to refer to Figure 2 A connecting and fixing hole 13 connected to the connecting movable groove 12 is provided on the outer side of the connecting and fixing rod 8, and a plurality of connecting and fixing holes 13 are evenly distributed circumferentially around the axis of the connecting and fixing rod 8. A plurality of connecting balls 11 are arranged in a one-to-one correspondence with the connecting and fixing holes 13, and each connecting ball 11 is respectively located in each connecting and fixing hole 13 and the diameter of each connecting ball 11 is larger than the aperture of each connecting and fixing hole 13. A connecting accommodating groove 14 is provided on the outside of the connecting portion 902 of the connecting sliding rod 9 for accommodating the connecting ball 11. In normal state, the outer side of the connecting portion 902 presses the connecting ball 11, and the free end of the connecting ball 11 passes through the outside of the connecting and fixing hole 13; when the connecting sliding rod 9 is pressed so that the connection accommodating groove 14 corresponds to the position of the connecting and fixing hole 13, the connecting ball 11 is accommodated in the connecting accommodating groove 14 under the action of the component force.

[0041] Continue to refer to Figure 2The mounting plate body 1 is fixedly installed with a fixed connecting sleeve 15, and two fixed connecting sleeves 15 are correspondingly arranged with the connecting and fixing rod 8. The fixed connecting sleeve 15 is provided with a mounting socket 16, and the mounting socket 16 includes a sliding section 161 and a limiting section 162, wherein the limiting section 162 is opened on the inner wall of the sliding section 161 and is used to accommodate the connecting ball 11, and the connecting and fixing rod 8 slides with the sliding section 161. When the connecting sliding rod 9 is pressed to make the connecting and fixing rod 8 slide to the position where the connecting ball 11 is opposite to the limiting section 162, the connecting sliding rod 9 is released, and the connecting ball 11 is inserted into the limiting section 162 under the pushing action of the connecting sliding rod 9, thereby realizing stable fixation between the mounting plate body 1 and the positioning and fixing plate 5.

[0042] Reference Figure 3 and Figure 4 The positioning adjustment component includes a positioning adjustment screw 17, a positioning slider 18 arranged along the vertical direction is fixedly installed on the positioning fixing plate 5, and the positioning adjustment plate 6 is provided with a positioning slide groove 19 extending along the vertical direction. The positioning slider 18 slides and fits in the positioning slide groove 19, and the positioning adjustment screw 17 is vertically rotatably installed on the positioning fixing plate 5. The positioning adjustment screw 17 is penetrated and threadedly fitted with the positioning adjustment plate 6, so that when the positioning adjustment screw 17 rotates, the positioning adjustment plate 6 moves along the vertical direction, thereby facilitating fine-tuning of the vertical position of the waterstop belt after the waterstop belt is fixed. In order to facilitate the application of force to realize the rotation of the positioning adjustment screw 17, a gripping portion 20 is fixedly installed on the top of the positioning adjustment screw 17.

[0043] Reference Figure 4 and Figure 5 The splint motion assembly includes a splint rotating seat 21, a splint rotating member, a bidirectional screw 22 and a splint driving member, wherein the splint rotating seat 21 is rotatably installed on the bottom of the positioning adjustment plate 6, and two positioning splints 7 are arranged oppositely. The tops of the two positioning splints 7 both abut and slideably fit on the splint rotating seat 21, and the bidirectional screw 22 is rotatably installed on the splint rotating seat 21. The two ends of the bidirectional screw 22 with opposite thread rotation directions are respectively penetrated and threadedly fitted on the two positioning splints 7, so that when the bidirectional screw 22 rotates, the two positioning splints 7 move in a direction close to or away from each other, thereby facilitating the fixing or loosening of the waterstop when the waterstop is located between the two positioning splints 7.

[0044] Reference Figure 4The splint rotating member is used to drive the splint rotating seat 21 to rotate around its own axis. Specifically, the splint rotating member includes a splint rotating rod 23, a splint rotating worm gear 24 and a splint rotating worm 25, wherein the splint rotating rod 23 is coaxially fixedly installed on the top of the splint rotating seat 21, the splint rotating rod 23 is rotatably installed on the positioning adjustment plate 6, the splint rotating worm gear 24 is coaxially fixedly installed on the splint rotating rod 23, and the splint rotating worm 25 is rotatably installed on the positioning adjustment plate 6 and meshes with the splint rotating worm gear 24, so that when the splint rotating worm gear 25 rotates, the splint rotating worm gear 24 drives the splint rotating rod 23 and the splint rotating seat 21 to rotate together, thereby facilitating the adjustment of the horizontal angle of the waterstop after the waterstop is clamped and fixed, thereby facilitating the bending installation of the waterstop, facilitating better fitting the structural deformation parts according to different construction conditions, and helping to ensure the waterproof effect of the waterstop after installation.

[0045] Reference Figure 4 and Figure 5 The splint driving member includes a driving worm 26, a driving worm wheel 27, a driving gear 28, a rack sleeve 29 and a driven gear 30, wherein the driven gear 30 is coaxially fixedly mounted on the bidirectional lead screw 22, the outer teeth of the rack sleeve 29 mesh with the driven gear 30, the rack sleeve 29 is coaxially sleeved and slidably matched with the splint rotating rod 23, the driving gear 28 is rotatably mounted on the positioning adjustment plate 6 and meshes with the outer teeth of the rack sleeve 29, and the driving worm wheel 27 is coaxially fixedly mounted On the driving gear 28, the driving worm 26 is rotatably installed on the positioning adjustment plate 6 and meshes with the driving worm wheel 27, so that when the driving worm 26 rotates, the driving worm wheel 27 drives the driving gear 28 to rotate together, and then the rack sleeve 29 drives the driven gear 30 and the two-way screw 22 to rotate together. This arrangement makes the rotation of the splint rotating seat 21 and the two-way screw 22 non-interfering with each other, and is conducive to ensuring the stability of the position of the splint rotating seat 21 and the two-way screw 22 after rotation.

[0046] Reference Figure 1 and Figure 4 In order to further ensure the stability of the clamp plate rotating seat 21 and the bidirectional screw 22 during rotation, the positioning adjustment plate 6 is installed with a protective shell 31, which covers the clamp plate rotating part and the clamp plate driving part. One end of the clamp plate rotating worm 25 and the driving worm 26 are both passed through and rotated to fit in the protective shell 31, so that the protective shell 31 plays a protective role for the clamp plate rotating part and the clamp plate driving part. The clamp plate rotating worm 25 and the driving worm 26 are passed through the protective shell 31. One end is fixedly installed with a handle 32 to facilitate the application of force to achieve stable rotation of the rotating worm and the driving worm 26.

[0047] The implementation principle of the steel bar integral positioning fixture for the low side wall waterstop of a single-track railway tunnel in an embodiment of the present application is as follows: when the low side wall waterstop of a single-track railway tunnel needs to be fixed, first, the fixed clamping plate 2 and the fixed splint 4 are used to clamp the frame or the transverse reinforcement through the rotation of the fixing screw 3, so as to fix the position of the mounting plate body 1, and then the two positioning splints 7 are driven to move toward each other by the rotation of the driving worm 26 to achieve the clamping and fixing of the two sides of the waterstop, which is beneficial to ensure the stability of the position of the waterstop. At this time, the positioning adjustment screw 17 is used to drive the positioning adjustment plate 6 to move in the vertical direction to facilitate the slight adjustment of the vertical position of the waterstop, and the splint rotating worm 25 is used to facilitate the adjustment of the horizontal angle of the waterstop, so that the waterstop can adapt to different construction conditions and has strong applicability.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel bar integral positioning fixture for a low side wall water stop strip of a single-track railway tunnel, characterized in that: The invention comprises a mounting plate body (1), a fixing mechanism and a positioning mechanism, wherein the fixing mechanism is arranged on the mounting plate body (1) and is used to fix the mounting plate body (1) at its position; the positioning mechanism comprises a positioning fixing plate (5), a positioning adjustment plate (6), a positioning adjustment assembly, a positioning clamping plate (7) and a clamping plate moving assembly, wherein the positioning fixing plate (5) is mounted on the positioning adjustment plate (6), the positioning adjustment assembly is arranged on the positioning fixing plate (5) and is used to drive the positioning adjustment plate (6) to move in a vertical direction, two positioning clamping plates (7) are arranged opposite to each other, and the clamping plate moving assembly is used to drive the two positioning clamping plates (7) to move in a direction of approaching or moving away from each other.

2. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 1 is characterized by: The positioning adjustment component comprises a positioning adjustment screw (17); the positioning adjustment plate (6) is provided with a positioning slide groove (19) extending in a vertical direction; the positioning fixing plate (5) is fixedly installed with a positioning slider (18); the positioning slider (18) is slidably engaged in the positioning slide groove (19); the positioning adjustment screw (17) is vertically rotatably mounted on the positioning fixing plate (5); and the positioning adjustment screw (17) is penetrated and threadedly engaged with the positioning adjustment plate (6).

3. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 1 is characterized by: The positioning fixing plate (5) is mounted on the mounting plate body (1) via a connecting assembly, wherein the connecting assembly comprises a connecting fixing rod (8), a connecting sliding rod (9), a connecting reset member and a connecting ball (11), wherein the connecting fixing rod (8) is fixedly mounted on the positioning fixing plate (5), wherein one end of the connecting fixing rod (8) is provided with a connecting movable groove (12), and the outer side of the connecting fixing rod (8) is provided with a connecting fixing hole (13) connected to the connecting movable groove (12), and the connecting ball (11) is located in the connecting fixing hole (13) and has a diameter greater than The connecting sliding rod (9) is slidably matched in the connecting movable groove (12) according to the hole diameter of the connecting fixing hole (13); a connecting accommodating groove (14) for accommodating the connecting ball (11) is provided on the outside of the connecting sliding rod (9); the connecting reset member is used to make the connecting sliding rod (9) move in a direction away from the connecting fixing rod (8); when the connecting sliding rod (9) contacts the connecting ball (11), the outside of the connecting ball (11) passes out of the fixing hole; and the mounting plate body (1) is provided with a mounting socket (16) which is plugged and matched with the connecting fixing rod (8).

4. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 3 is characterized by: The mounting socket (16) comprises a sliding section (161) and a limiting section (162); the limiting section (162) is arranged on the inner wall of the sliding section (161); and the limiting section (162) is used to accommodate the connecting ball (11).

5. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 4 is characterized by: The mounting plate body (1) is fixedly mounted with a fixed connecting sleeve (15), the mounting socket (16) is opened in the fixed connecting sleeve (15), and the connecting reset member comprises a connecting spring (10), one end of the connecting spring (10) is connected to the groove wall of the connecting movable groove (12), and the other end is connected to the connecting sliding rod (9).

6. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 1 is characterized by: The splint motion assembly includes a splint rotating seat (21), a splint rotating member, a bidirectional screw (22) and a splint driving member. The splint rotating seat (21) is rotatably mounted on the positioning adjustment plate (6). The splint rotating member is used to drive the splint rotating seat (21) to rotate around its own axis. The bidirectional screw (22) is rotatably mounted on the splint rotating seat (21). The two ends of the bidirectional screw (22) with opposite thread rotation directions are respectively penetrated and threadedly engaged with two positioning splints (7). The two positioning splints (7) are slidably engaged with the splint rotating seat (21). The splint driving member is used to drive the bidirectional screw (22) to rotate.

7. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 6 is characterized by: The splint rotating member comprises a splint rotating rod (23), a splint rotating worm wheel (24) and a splint rotating worm (25); the splint rotating rod (23) is coaxially fixedly mounted on the splint rotating seat (21); the splint rotating rod (23) is rotatably mounted on the positioning adjustment plate (6); the splint rotating worm wheel (24) is coaxially fixedly mounted on the splint rotating rod (23); the splint rotating worm (25) is rotatably mounted on the positioning adjustment plate (6) and meshes with the splint rotating worm wheel (24).

8. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 7 is characterized by: The splint driving member comprises a driving worm (26), a driving worm wheel (27), a driving gear (28), a rack sleeve (29) and a driven gear (30); the driven gear (30) is coaxially fixedly mounted on the bidirectional lead screw (22); the rack sleeve (29) is meshed with the driven gear (30); the rack sleeve (29) is sleeved and slidably fitted on the splint rotating rod (23); the driving gear (28) is rotatably mounted on the positioning adjustment plate (6) and meshed with the rack sleeve (29); the driving worm wheel (27) is coaxially fixedly mounted on the driving gear (28); the driving worm (26) is rotatably mounted on the positioning adjustment plate (6) and meshed with the driving worm wheel (27).

9. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 8, characterized in that: The positioning adjustment plate (6) is installed with a protective shell (31), and the protective shell (31) covers the clamp plate rotating part and the clamp plate driving part. One end of the clamp plate rotating worm (25) and the driving worm (26) are both passed through and rotated to fit in the protective shell (31), and one end of the clamp plate rotating worm (25) and the driving worm (26) passed through the protective shell (31) is fixedly installed with a handle (32).

10. The steel bar integral positioning fixture for the water stop strip of the low side wall of a single-track railway tunnel according to claim 1, characterized in that: The fixing mechanism comprises a fixing clamping plate (2), a fixing screw (3) and a fixing clamping plate (4); the fixing clamping plate (2) is fixedly mounted on the mounting plate body (1); the fixing screw (3) is rotatably mounted on the fixing clamping plate (2); the fixing screw (3) is passed through and threadedly engaged with the fixing clamping plate (4); and the fixing clamping plate (4) is slidably engaged with the mounting plate body (1).

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